# EDGAR Filing Document

**Accession Number:** 0001359931
**File Stem:** 0001213900-26-056057
**Filing Date:** 2026-5
**Character Count:** 415931
**Document Hash:** 2a04c7ca35298cb95f02db1f685f2b87
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-056057.hdr.sgml**: 20260514

**ACCESSION NUMBER**: 0001213900-26-056057

**CONFORMED SUBMISSION TYPE**: S-3

**PUBLIC DOCUMENT COUNT**: 16

**FILED AS OF DATE**: 20260514

**DATE AS OF CHANGE**: 20260513

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Protara Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001359931
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 204580525
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-3
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-295862
- **FILM NUMBER:** 26975159

**BUSINESS ADDRESS:**
- **STREET 1:** 345 PARK AVENUE SOUTH
- **STREET 2:** 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** 646-844-0337

**MAIL ADDRESS:**
- **STREET 1:** 345 PARK AVENUE SOUTH
- **STREET 2:** 3RD FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ArTara Therapeutics, Inc.
- **DATE OF NAME CHANGE:** 20200110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PROTEON THERAPEUTICS INC
- **DATE OF NAME CHANGE:** 20060420

**As filed with the Securities and Exchange Commission on May 13, 2026**

**Registration No. 333-** 

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM S-3**

**REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933**

**PROTARA THERAPEUTICS, INC.**

(Exact name of registrant as specified in its charter)

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| | |
|:---|:---|
| &nbsp;&nbsp;**Delaware** | &nbsp;&nbsp;**20-4580525** |
| (State or other jurisdiction of | (I.R.S. Employer |
| &nbsp;&nbsp;incorporation or organization) | &nbsp;&nbsp;Identification Number) |

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**345 Park Avenue South, Third Floor**

**New York, New York 10010**

**(646) 844-0337**

(Address, including zip code, and telephone number, including area code of registrant's principal executive offices)

**Jesse Shefferman**

**President and Chief Executive Officer**

**Protara Therapeutics, Inc.**

**345 Park Avenue South, Third Floor**

**New York, New York 10010**

**(646) 844-0337**

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

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| | |
|:---|:---|
| **Mary J. Grendell, Esq.** | **Jennifer L. Lee P.C.** |
| **Chief Legal and Compliance Officer** | Kirkland & Ellis LLP |
| Protara Therapeutics, Inc. | 601 Lexington Avenue |
| 345 Park Avenue South, Third Floor | New York, NY 10022 |
| New York, New York 10010 | (212) 446-4800 |
| (646) 844-0337 |  |

---

**Approximate date of commencement of proposed sale to the public: From time to time after this Registration Statement becomes effective.**

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐ <br> Non-accelerated filer ☒ Smaller reporting company ☒ <br> Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

**The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment that specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.**

**EXPLANATORY NOTE**

This registration statement contains two prospectuses:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· a
base prospectus which covers the offering, issuance and sale of up an unspecified amount of the registrant's common stock, preferred
stock, debt securities and warrants; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· a sales agreement prospectus supplement
 covering the offering, issuance and sale of up to $100,000,000 of the registrant's shares of common stock that may be issued
 and sold under the Sales Agreement between the registrant and TD Securities (USA) LLC ("TD Cowen").

The base prospectus immediately follows this explanatory note. The specific terms of any securities to be offered pursuant to the base prospectus will be specified in a prospectus supplement to the base prospectus. The sales agreement prospectus supplement immediately follows the base prospectus.

This registration statement on Form S-3 (the "Registration Statement") is being filed by the registrant pursuant to Rule 415(a)(6) under the Securities Act of 1933, as amended (the "Securities Act"), in order to replace the registrant's registration statement on Form S-3 (File No. 333-275290), originally filed with the Securities and Exchange Commission on November 3, 2023 and declared effective on November 14, 2023 (the "Prior Registration Statement"). Pursuant to Rule 415(a)(6) under the Securities Act, the registrant is including in this Registration Statement unsold securities with a maximum aggregate offering price of $110,914,137.87 (the "Unsold Securities") previously registered under the Prior Registration Statement to be offered, issued and sold by the Company. Pursuant to Rule 415(a)(5)(ii) under the Securities Act, by filing this Registration Statement, the registrant may issue and sell Unsold Securities covered by the Prior Registration Statement until the earlier of the effective date of this Registration Statement and 180 days after the third-year anniversary of the original effective date of the Prior Registration Statement. To the extent that, after the filing date hereof and prior to the effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement, we will identify in a pre-effective amendment to this Registration Statement the updated number of Unsold Securities from the Prior Registration Statement to be included in this registration statement pursuant to Rule 415(a)(6) and the updated amount of new securities to be registered on this Registration Statement. In accordance with Rule 415(a)(6) under the Securities Act, the offering of Unsold Securities under the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this Registration Statement.

**The information in this prospectus is not complete and may be changed. We may not sell these securities or accept an offer to buy these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities, and it is not soliciting offers to buy these securities in any state where such offer or sale is not permitted.**

**SUBJECT TO COMPLETION, DATED MAY 13, 2026**

**PROSPECTUS**

![](ea028998301_img1.jpg)

**$300,000,000<br> Common Stock<br> Preferred Stock<br> Debt Securities<br> Warrants**

From time to time, we may offer up to $300,000,000 of any combination of the securities described in this prospectus in one or more offerings. We may also offer securities as may be issuable upon conversion, redemption, repurchase, exchange or exercise of any securities registered hereunder, including any applicable anti-dilution provisions.

This prospectus provides a general description of the securities we may offer. Each time we offer securities, we will provide specific terms of the securities offered in a supplement to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The prospectus supplement and any related free writing prospectus may also add, update or change information contained in this prospectus. You should carefully read this prospectus, the applicable prospectus supplement and any related free writing prospectus, as well as any documents incorporated by reference, before you invest in any of the securities being offered.

**This prospectus may not be used to consummate a sale of any securities unless accompanied by a prospectus supplement.**

Our common stock is listed on The Nasdaq Global Market, or Nasdaq, under the symbol "TARA." On May 11, 2026, the last reported sale price of our common stock was $5.27 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing on Nasdaq or any securities market or other exchange of the securities, if any, covered by the prospectus supplement.

We will sell these securities directly to investors, through agents designated from time to time or to or through underwriters or dealers, on a continuous or delayed basis. For additional information on the methods of sale, you should refer to the section titled "Plan of Distribution" in this prospectus. If any agents or underwriters are involved in the sale of any securities with respect to which this prospectus is being delivered, the names of such agents or underwriters and any applicable fees, commissions, discounts or over-allotment options will be set forth in a prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from such sale will also be set forth in a prospectus supplement.

Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties described under the heading "Risk Factors" on page 7 of this prospectus, any similar section contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus as described on page 32 of this prospectus.

**NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

The date of this prospectus is , 2026.

**TABLE OF CONTENTS**

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| | |
|:---|:---|
| [ABOUT THIS PROSPECTUS](#a_001) | ii |
| [SUMMARY](#a_002) | 1 |
| [RISK FACTORS](#a_003) | 7 |
| [SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS](#a_004) | 8 |
| [USE OF PROCEEDS](#a_005) | 10 |
| [DESCRIPTION OF CAPITAL STOCK](#a_006) | 11 |
| [DESCRIPTION OF DEBT SECURITIES](#a_007) | 17 |
| [DESCRIPTION OF WARRANTS](#a_008) | 24 |
| [LEGAL OWNERSHIP OF SECURITIES](#a_009) | 26 |
| [PLAN OF DISTRIBUTION](#a_010) | 29 |
| [LEGAL MATTERS](#a_011) | 31 |
| [EXPERTS](#a_012) | 31 |
| [WHERE YOU CAN FIND MORE INFORMATION](#a_013) | 31 |
| [INCORPORATION OF CERTAIN INFORMATION BY REFERENCE](#a_014) | 32 |

---

i

**ABOUT THIS PROSPECTUS**

This prospectus is a part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission, or SEC, utilizing a "shelf" registration process. Under this shelf registration process, we may sell any combination of the securities described in this prospectus in one or more offerings up to a total aggregate offering price of $300,000,000. This prospectus provides you with a general description of the securities we may offer.

Each time we sell securities under this prospectus, we will provide a prospectus supplement that will contain specific information about the terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change information contained in this prospectus or in any documents that we have incorporated by reference into this prospectus. You should read this prospectus, any applicable prospectus supplement and any related free writing prospectus, together with the information incorporated herein by reference as described under the heading "Incorporation of Certain Information by Reference," before investing in any of the securities offered.

**THIS PROSPECTUS MAY NOT BE USED TO CONSUMMATE A SALE OF SECURITIES UNLESS IT IS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.**

Neither we, nor any agent, underwriter or dealer has authorized any person to give any information or to make any representation other than those contained or incorporated by reference in this prospectus, any applicable prospectus supplement or any related free writing prospectus prepared by or on behalf of us or to which we have referred you. This prospectus, any applicable supplement to this prospectus or any related free writing prospectus do not constitute an offer to sell or the solicitation of an offer to buy any securities other than the registered securities to which they relate, nor do this prospectus, any applicable supplement to this prospectus or any related free writing prospectus constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction.

You should not assume that the information contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus is accurate on any date subsequent to the date set forth on the front of the document or that any information we have incorporated by reference is correct on any date subsequent to the date of the document incorporated by reference, even though this prospectus, any applicable prospectus supplement or any related free writing prospectus is delivered, or securities are sold, on a later date.

This prospectus and the information incorporated herein by reference contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under the heading "Where You Can Find More Information."

Unless otherwise stated, all references in this prospectus to "we," "us," "our," "Protara," the "Company" and similar designations refer to Protara Therapeutics, Inc. This prospectus contains references to trademarks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this prospectus, including logos, artwork and other visual displays, may appear without the® or™ symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies' trade names or trademarks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

ii

**SUMMARY**

*The following summary highlights information contained elsewhere in this prospectus. This summary is not complete and does not contain all of the information that you need to consider in making your investment decision. You should carefully read the entire prospectus, the applicable prospectus supplement and any related free writing prospectus, including the risks of investing in our securities discussed under the heading "Risk Factors" contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus. You should also carefully read the information incorporated by reference into this prospectus, including our financial statements, and the exhibits to the registration statement of which this prospectus is a part.*

*Unless the context indicates otherwise, references in this prospectus to "Protara," "Protara Therapeutics," "the Company," "we," "us," "our" and similar references refer to Protara Therapeutics, Inc.*

**Overview**

We are a New York City based clinical-stage biopharmaceutical company committed to advancing transformative therapies for the treatment of cancer and rare diseases. We were founded on the principle of applying modern scientific, regulatory or manufacturing advancements to established mechanisms in order to create new development opportunities. We prioritize creativity, integrity and tenacity to expedite our goal of bringing life-changing therapies to people with limited treatment options.

Our portfolio includes two development programs utilizing TARA-002, an investigational cell therapy based on the broad immunopotentiator, OK-432, which was originally granted marketing approval by the Japanese Ministry of Health and Welfare as an immunopotentiating cancer therapeutic agent. This cell therapy is currently approved in Japan and Taiwan for lymphatic malformations, or LMs, and multiple oncologic indications. We have secured worldwide rights to the asset excluding Japan and Taiwan and are exploring its use in oncology and rare disease indications. TARA-002 was developed from the same master cell bank of genetically distinct group A Streptococcus pyogenes as OK-432 (marketed as Picibanil® in Japan by Chugai Pharmaceutical Co., Ltd., or Chugai Pharmaceutical). We are currently developing TARA-002 in non-muscle invasive bladder cancer, or NMIBC, and LMs. We are also pursuing Intravenous, or IV, Choline Chloride, an investigational phospholipid substrate replacement therapy, for patients receiving parenteral support, or PS, which includes both nutrition and fluids.

We have devoted substantial efforts to the development of our programs and do not have any approved products and, to date, have not generated any revenues from product sales. Neither TARA-002 nor IV Choline Chloride have been approved by the U.S. Food and Drug Administration, or FDA, or other comparable regulatory authorities for use for any indications. We do not expect to generate revenues in the near-term, and it is possible we may never generate revenues in the future. To finance our current strategic plans, including the conduct of ongoing and future clinical trials and further research and development costs, we will need to raise additional capital.

*TARA-002 in NMIBC* 

Our lead oncology program is TARA-002 in NMIBC, which is cancer found in the tissue that lines the inner surface of the bladder that has not spread into the bladder muscle. Bladder cancer is the sixth most common cancer in the U.S., with NMIBC representing approximately 80% of bladder cancer diagnoses. Approximately 65,000 patients are diagnosed with NMIBC in the U.S. each year. Very few new therapeutics have been approved for NMIBC since the 1990s and the current standard of care for NMIBC includes intravesical Bacillus Calmette-Guérin, or BCG.

Following the completion of our Phase 1a ADVANCED-1 and Phase 1b ADVANCED-1EXP trials in October 2024 and September 2024, respectively, to evaluate safety, preliminary efficacy and the dosing of TARA-002, at the 40KE (Klinische Einheit, or KE, is a German term indicating a specified weight of dried cells in vial) dose level, we initiated and are currently conducting our ADVANCED-2 clinical trial. ADVANCED-2 is a Phase 2 open-label clinical trial evaluating intravesical TARA-002 in patients with high-grade carcinoma in situ, or CIS. Cohort A of the Phase 2 trial has completed enrollment and enrolled 31 patients with CIS (± Ta/T1, with Ta defined as non-invasive papillary carcinoma and T1 defined as carcinoma invading the lamina propria) who are either BCG-Naïve or BCG-Exposed and who have not received intravesical BCG for at least 24 months prior to CIS diagnosis. Cohort B of the Phase 2 trial is expected to enroll 75 to 100 patients with BCG-Unresponsive CIS (± Ta/T1) and is designed to be registrational based on the FDA's August 2024 Draft Guidance for Industry on BCG-Unresponsive Nonmuscle Invasive Bladder Cancer: Developing Drugs and Biological Products for Treatment. Trial subjects in ADVANCED-2 receive an induction course, with or without a reinduction, of six weekly intravesical instillations of TARA-002, followed by a maintenance course of three weekly instillations every three months.

In February 2026, we presented updated interim data from our ongoing Phase 2 open-label ADVANCED-2 trial reporting results that continue to support TARA-002's potential as a new therapy in the NMIBC treatment landscape and demonstrating meaningful and durable activity in BCG-Unresponsive and BCG-Naïve NMIBC patients.

The dataset includes 43 BCG-Unresponsive patients and 31 BCG-Naïve patients who received at least one dose of TARA-002; 35 BCG-Unresponsive patients and 29 BCG-Naïve patients completed at least one response assessment and were evaluable for efficacy as of a January 28, 2026 data cutoff. Complete response, or CR, rates at the six months and 12 months landmark time points include all participants who were either evaluable at that time point or had experienced disease progression or treatment failure prior to the scheduled visit.

For the BCG-Unresponsive cohort, the CR rate at any time was 65.7% (23/35). The CR rate was 68.2% (15/22) at six months and 33.3% (5/15) at 12 months. Among responders, the Kaplan-Meier, or KM, estimated probability of maintaining a CR for six months was 71.1% (95% confidence interval, or CI: 46.7, 95.5), and 100% (5/5) maintained their CR from nine to 12 months. Re-induction therapy successfully converted 61.5% (8/13) non-responders to a CR at six months.

For the BCG-Naïve cohort, the CR rate at any time was 72.4% (21/29). The CR rate was 66.7% (18/27) at six months and 57.9% (11/19) at 12 months. Among responders, the KM estimated probability of maintaining a CR for six months was 73.1% (95% CI: 52.9, 93.4), and 100% (11/11) maintained their CR from nine to 12 months. Re-induction therapy successfully converted 66.7% (4/6) non-responders to a CR at six months.

The majority of treatment-related adverse events, or TRAEs, were Grade 1 and transient with no Grade 3 or greater TRAEs and no related serious adverse events, or SAEs, as assessed by study investigators. No patients discontinued treatment due to TRAEs. The most commonly occurring TRAEs were dysuria (14%), bladder spasm (9%), fatigue (7%) and micturition urgency (5%).

In March 2026, we announced that we have received confirmation on the six-month CR rate of the 25th BCG-Unresponsive patient in our ongoing Phase 2 open-label ADVANCED-2 trial of TARA-002 in patients with CIS (± Ta/T1) NMIBC. The average six-month CR rate in the 25 BCG-Unresponsive patients is 68.0%, which is consistent with the 68.2% CR rate at six months that was announced by us in February 2026, and is meaningfully above 41.9%.

We expect to complete enrollment of the BCG-Unresponsive registrational cohort of the ADVANCED-2 trial in the second half of 2026. Enrollment is complete in the BCG-Naïve cohort of the ADVANCED-2 trial with 31 patients. We are planning a proposed registrational trial in BCG-Naïve and potentially BCG-Exposed patients. The FDA has agreed that BCG is not required as a comparator and that intravesical chemotherapy is an acceptable comparator to TARA-002 in BCG-Naïve patients. We are continuing to engage with the FDA on aspects of the analysis plan, and we intend to initiate the ADVANCED-3 trial in the second half of 2026.

In addition to our existing clinical trials in NMIBC, we plan to continue to explore the anti-tumor activity related to the administration of TARA-002 via systemic administration. We continue to believe that combination therapy may play a meaningful role in the NMIBC treatment paradigm and intend to evaluate TARA-002 in combination with other therapies. Given what we have observed to date of TARA-002's mechanism of action and safety profile, we believe it has strong potential as a combination agent, and we continue to evaluate potential combination therapy options for our clinical program. We also continue to conduct non-clinical studies on TARA-002 to better characterize the mechanism of action to help us understand how TARA-002 may perform in potential combinations with other agents used to treat NMIBC, and to help us define other cancer targets for TARA-002, both within urothelial cancer and other types of cancer affecting different parts of the body.

*IV Choline Chloride for Patients on PS*

We are also pursuing IV Choline Chloride, an investigational phospholipid substrate replacement therapy, for patients receiving PS which includes both nutrition and fluids. Choline is a known important substrate for phospholipids that are critical for healthy liver function and also plays an important role in modulating gene expression, cell membrane signaling, brain development, neurotransmission, muscle function and bone health. PS patients are unable to synthesize choline from enteral nutrition sources, and there are currently no available PS formulations containing choline. Every year in the U.S. there are approximately 90,000 people who require PS at home and of those approximately 30,000 are on long-term PS. IV Choline Chloride has the potential to become the first FDA-approved IV choline formulation for PS patients.

An IV formulation of choline is recommended for patients on parenteral nutrition, or PN, by the American Society for Parenteral and Enteral Nutrition, or ASPEN, in their Recommendations for Changes in Commercially Available Parenteral Multivitamin and Multi–Trace Element Products, as well as by the European Society for Clinical Nutrition and Metabolism, or ESPEN, in their Guideline on Home Parenteral Nutrition. IV Choline Chloride has been granted Orphan Drug Designation, or ODD, by the FDA for the prevention and/or treatment of choline deficiency in patients on long-term PN. The FDA has also granted IV Choline Chloride Fast Track Designation, or FTD, as a source of choline when oral or enteral nutrition is not possible, insufficient, or contraindicated. The U.S. Patent and Trademark Office, or USPTO, has issued us a U.S. patent claiming a choline composition and a U.S. patent claiming a method of treating choline deficiency with a choline composition, each with a term expiring in 2041.

In April 2024, we announced alignment with the FDA on a registrational path forward for IV Choline Chloride. Previously, we had been pursuing an indication in intestinal failure-associated liver disease, or IFALD, and following feedback from the FDA, are pursuing a broader indication as a source of choline when oral or enteral nutrition is not possible, insufficient, or contraindicated. Feedback from the FDA on our IV Choline Chloride program indicated that a single study with an endpoint of restoring choline levels in PS patients could serve as the basis for a regulatory submission for IV Choline Chloride.

In September 2024, we presented the results of THRIVE-1, a prospective, observational study evaluating the prevalence of choline deficiency and liver injury in patients dependent on PS in the U.S., U.K. and Europe. The study found that 78% of patients who are dependent on PS were choline deficient, and that 63% of choline deficient participants had liver dysfunction, including steatosis, cholestasis and hepatobiliary injury, underscoring the need for IV Choline supplementation in this patient population.

In January 2026, we advanced the development of IV Choline Chloride as a source of choline for adult and adolescent patients on long-term PS and initiated THRIVE-3, a registrational Phase 3 clinical trial. THRIVE-3 is a seamless Phase 2b/3 trial with a dose confirmation portion (n=24) followed by a double-blinded, randomized, placebo-controlled portion to assess the efficacy and safety of IV Choline Chloride over 24 weeks in adolescents and adults on long-term PS when oral or enteral nutrition is not possible, insufficient, or contraindicated (n=100). The primary endpoint of the clinical trial is a pharmacokinetic, or PK, endpoint measuring the change from baseline in plasma choline concentration. We also plan to include a number of secondary endpoints related to liver, bone and memory. We anticipate reporting interim results from the dose-confirmation portion of the trial in the second half of 2026.

*TARA-002 in LMs* 

We are also pursuing TARA-002 in macrocystic and mixed-cystic LMs, which are rare, non-malignant cysts of the lymphatic vascular system that primarily form in the head and neck region of children before the age of two. In addition to the clinical experience in Japan, we have secured the rights to a dataset from one of the largest ever conducted Phase 2 trials in LMs, in which OK-432 was administered via a compassionate use program led by the University of Iowa to over 500 pediatric and adult patients. In July 2020, the FDA granted Rare Pediatric Disease Designation, or RPDD, for TARA-002 for the treatment of LMs and in May 2022 the European Commission granted Orphan Medicinal Product Designation to TARA-002 for the treatment of LMs. In December 2025, the FDA granted both FDA Breakthrough Therapy Designation, or BTD, and FTD for TARA-002 for the treatment of macrocystic and mixed cystic LMs in pediatric patients. In April 2026, the FDA granted ODD to TARA-002 for the treatment of macrocystic LMs and mixed cystic LMs. We have an open investigational new drug application, or IND, for TARA-002 in LMs and the review of TARA-002 has been moved from the Office of Vaccines Research and Review to the Office of Therapeutic Products, or OTP, which has significant experience in pediatric rare disease and is the review division for TARA-002 in NMIBC.

In October 2023, we initiated STARBORN-1, which is a Phase 2 single-arm, open-label, prospective clinical trial to evaluate the safety and efficacy of intracystic injection of TARA-002 for the treatment of macrocystic and mixed-cystic LMs (≥ 50% macrocystic disease) in participants six months to less than 18 years of age in the U.S. Including an age de-escalation safety lead-in, the clinical trial will enroll approximately 30 patients who will receive up to four injections of TARA-002 spaced approximately six weeks apart. The primary endpoint of the clinical trial is the proportion of participants with macrocystic LMs and mixed-cystic LMs who demonstrated clinical success, defined as having either a CR (90% to 100% reduction from baseline in total LM volume) or substantial response (60% to less than 90% reduction in total LM volume) as measured by axial imaging.

In November 2025, we announced interim results from our ongoing Phase 2 STARBORN-1 trial evaluating TARA-002 in pediatric patients with macrocystic and mixed cystic LMs. As of the data cutoff date of November 12, 2025, 12 patients had received at least one dose of TARA-002. Of the eight patients who were evaluable at the eight-week post-treatment assessment, 100% achieved clinical success. 88% of patients achieved clinical success with just one or two doses of TARA-002. Among macrocystic patients, 83% (5/6) achieved a CR, and the only mixed cystic patient treated also achieved a CR. Two patients who reached the 32-week post-treatment assessment remain disease-free.

The safety profile of TARA-002 in this trial has been favorable, with the majority of adverse events, or AEs, being mild to moderate in severity. No SAEs were reported. The most common AEs were swelling and fatigue, and only one patient discontinued treatment due to a Grade 2 AE of fatigue.

These results underscore the potential of TARA-002 to address an unmet need for pediatric patients with LMs, for whom there are currently no approved therapies. Many patients currently rely on invasive surgical procedures or off-label use of chemotherapies and chemicals, which can be associated with high complication rates and challenging side effects, particularly in pediatric populations.

Based on engagement with the FDA, we intend to submit a Biologics License Application for TARA-002 in LMs based on the results of the pivotal STARBORN-1 trial in the second half of 2027 and will continue to submit safety and efficacy data from the trial on an ongoing basis to support the FDA's evaluation of the risks and benefits of TARA-002 in LMs.

*Other Potential Opportunities*

We believe TARA-002 may also have the potential to be used to treat other maxillofacial cysts based on the historical literature from the TARA-002 predecessor, OK-432, as well as recent data from the STARBORN-1 trial in which the one pediatric patient with a ranula achieved a CR after a single 1KE injection of TARA-002. While completing STARBORN-1 in LMs is our priority, we believe there may be an opportunity in the future to explore the potential of TARA-002 to treat different types of maxillofacial cysts.

**Corporate Information**

We were originally incorporated in Delaware in March 2006, and at that time, acquired Proteon Therapeutics, LLC, the predecessor of Protara, which was formed in June 2001. On January 9, 2020, Protara Therapeutics, Inc. (formerly ArTara Therapeutics, Inc., formerly Proteon Therapeutics, Inc., or the Company or Protara), and privately-held ArTara Subsidiary, Inc., or Private ArTara, completed the merger and reorganization, or the Merger, in accordance with the terms of the Agreement and Plan of Merger and Reorganization, dated September 23, 2019, or the Merger Agreement, by and among the Company, Private ArTara and REM 1 Acquisition, Inc., a wholly owned subsidiary of the Company, or Merger Sub, whereby Merger Sub merged with and into Private ArTara, with Private ArTara surviving as a wholly owned subsidiary of the Company. The Merger was structured as a reverse merger and Private ArTara was determined to be the accounting acquirer based on the terms of the Merger and other factors. Our principal executive offices are located at 345 Park Avenue South, Third Floor, New York, New York 10010, our telephone number is (646) 844-0337 and our website address is www.protaratx.com. The information contained in or accessible through our website does not constitute part of this prospectus.

**The Securities We May Offer**

We may offer shares of our common stock and preferred stock, various series of debt securities and warrants to purchase any of such securities, up to a total aggregate offering price of $300,000,000, from time to time in one or more offerings under this prospectus, together with any applicable prospectus supplement and any related free writing prospectus, at prices and on terms to be determined by market conditions at the time of the relevant offering. This prospectus provides you with a general description of the securities we may offer. Each time we offer a type or series of securities under this prospectus, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities, including, to the extent applicable:

● designation or classification;

● aggregate principal amount or aggregate offering price;

● maturity, if applicable;

● original issue discount, if any;

● rates and times of payment of interest or dividends, if any;

● redemption, conversion, exchange or sinking fund terms, if any;

● ranking, if applicable;

● restrictive covenants, if any;

● voting or other rights, if any;

● conversion or exchange prices or rates, if any, and, if applicable, any provisions for changes to or adjustments in the conversion or exchange prices or rates and in the securities or other property receivable upon conversion or exchange; and

● important U.S. federal income tax considerations.

The prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change information contained in this prospectus or in documents we have incorporated by reference. However, no prospectus supplement or free writing prospectus will offer a security that is not registered and described in this prospectus at the time of the effectiveness of the registration statement of which this prospectus is a part.

We may sell the securities directly to investors or through underwriters, dealers or agents. We, and our underwriters or agents, reserve the right to accept or reject all or part of any proposed purchase of securities. If we do offer securities through underwriters or agents, we will include in the applicable prospectus supplement:

● the names of those underwriters or agents;

● applicable fees, discounts and commissions to be paid to them;

● details regarding over-allotment options, if any; and

● the estimated net proceeds to us.

**This prospectus may not be used to consummate a sale of securities unless it is accompanied by a prospectus supplement.**

***Common Stock***. We may issue shares of our common stock from time to time. Each holder of common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders and does not have cumulative voting rights. Subject to preferences that may apply to any outstanding preferred stock, holders of our common stock are entitled to receive ratably any dividends that our board of directors may declare out of funds legally available for that purpose. In the event of our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in all assets remaining after payment of liabilities and the liquidation preference of any outstanding preferred stock. Holders of our common stock have no preemptive, conversion, subscription or other rights, and there are no redemption or sinking fund provisions applicable to our common stock. The rights, preferences and privileges of the holders of our common stock are subject to and may be adversely affected by the rights of the holders of shares of any series of our preferred stock that we may designate in the future, as well as our Series 1 Convertible Non-Voting Preferred Stock, or Series 1 Preferred Stock. In this prospectus, we have summarized certain general features of our common stock under the heading "Description of Capital Stock—Common Stock." We urge you, however, to read the applicable prospectus supplement (and any related free writing prospectus that we may authorize to be provided to you) related to any common stock being offered.

***Preferred Stock***. We may issue shares of our preferred stock from time to time, in one or more series. Under our sixth amended and restated certificate of incorporation, as amended from time to time, our board of directors has the authority, without further action by our stockholders (unless such stockholder action is required by applicable law or the rules of any stock exchange or market on which our securities are then traded), to issue up to 10,000,000 shares of preferred stock in one or more series and to fix the number, rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences and sinking fund terms, and the number of shares constituting any series or the designation of such series, any or all of which may be greater than the rights of common stock. Any convertible preferred stock we may issue will be convertible into our common stock or exchangeable for our other securities. Conversion may be mandatory or at the holder's option and would be at prescribed conversion rates.

If we sell any series of preferred stock under this prospectus, we will fix the designations, voting powers, preferences and rights of such series of preferred stock, as well as the qualifications, limitations or restrictions thereof, in the certificate of designation relating to that series. We will file as an exhibit to the registration statement of which this prospectus is a part, or will incorporate by reference from reports that we file with the SEC, the form of any certificate of designation that describes the terms of the series of preferred stock that we are offering before the issuance of the related series of preferred stock. In this prospectus, we have summarized certain general features of the preferred stock under the heading "Description of Capital Stock —Preferred Stock." We urge you, however, to read the applicable prospectus supplement (and any free writing prospectus that we may authorize to be provided to you) related to the series of preferred stock being offered, as well as the complete certificate of designation that contains the terms of the applicable series of preferred stock.

***Debt Securities***. From time to time, we may issue debt securities in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. The senior debt securities will rank equally with any other unsecured and unsubordinated debt. The subordinated debt securities will be subordinate and junior in right of payment, to the extent and in the manner described in the instrument governing the debt, to all of our senior indebtedness. Convertible debt securities will be convertible into or exchangeable for our common stock or other securities. Conversion may be mandatory or at the holder's option and would be at prescribed conversion rates.

Any debt securities issued under this prospectus will be issued under one or more documents called indentures, which are contracts between us and a national banking association or other eligible party, as trustee. In this prospectus, we have summarized certain general features of the debt securities under the heading "Description of Debt Securities." We urge you, however, to read the applicable prospectus supplement (and any free writing prospectus that we may authorize to be provided to you) related to the series of debt securities being offered, as well as the complete indenture(s) and any supplemental indentures that contain the terms of the debt securities. We have filed a form of indenture as an exhibit to the registration statement of which this prospectus is a part. We will file as exhibits to the registration statement of which this prospectus is a part, or will be incorporated by reference from reports that we file with the SEC, supplemental indentures and forms of debt securities containing the terms of the debt securities being offered.

***Warrants***. From time to time, we may issue warrants for the purchase of common stock, preferred stock and/or debt securities, in one or more series, from time to time. We may issue warrants independently or in combination with common stock, preferred stock and/or debt securities, and the warrants may be attached to or separate from these securities. In this prospectus, we have summarized certain general features of the warrants under the heading "Description of Warrants." We urge you, however, to read the applicable prospectus supplement (and any free writing prospectus that we may authorize to be provided to you) related to the particular series of warrants being offered, as well as the complete warrant agreements and warrant certificates that contain the terms of the warrants. We have filed forms of the warrant agreements and forms of warrant certificates containing the terms of the warrants that we may offer as exhibits to the registration statement of which this prospectus is a part. We will file as exhibits to the registration statement of which this prospectus is a part, or will be incorporated by reference from reports that we file with the SEC, the form of warrant or the warrant agreement and warrant certificate, as applicable, that contain the terms of the particular series of warrants we are offering, and any supplemental agreements, before the issuance of such warrants.

Any warrants issued under this prospectus may be evidenced by warrant certificates. Warrants may be issued under a warrant agreement that we enter into with a warrant agent. We will indicate the name and address of the warrant agent, if applicable, in the prospectus supplement relating to the particular series of warrants being offered.

**RISK FACTORS**

Investing in our securities involves a high degree of risk. You should carefully review the risks and uncertainties described under the heading "Risk Factors" contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in our Annual Report on Form 10-K for the year ended December 31, 2025, as updated by our annual, quarterly and other reports and documents that are incorporated by reference into this prospectus, before deciding whether to purchase any of the securities being registered pursuant to the registration statement of which this prospectus is a part. Each of the risk factors could adversely affect our business, results of operations, financial condition and cash flows, as well as adversely affect the value of an investment in our securities, and the occurrence of any of these risks might cause you to lose all or part of your investment. Additional risks not presently known to us or that we currently believe are immaterial may also significantly impair our business operations.

**SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS**

This prospectus contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and are subject to the safe harbor created thereby under the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect our current views with respect to, among other things, our operations and financial performance. All statements other than statements of historical facts contained in this prospectus are forward-looking statements. You can generally identify these forward-looking statements by terminology such as "believes," "expects," "potential," "continues," "may," "will," "should," "seek," "approximately," "predict," "intend," "plans," "estimates," "anticipates" or the negative version of these terms or other comparable terminology. Forward-looking statements inherently involve many risks and uncertainties that could cause actual results to differ from those expressed in forward-looking statements. Forward-looking statements are based on management's current plans and expectations, expressed in good faith and believed to have a reasonable basis. However, we can give no assurance that any expectation or belief will result or will be achieved or accomplished. Investors therefore should not place undue reliance on forward-looking statements.

These forward-looking statements include, but are not limited to, statements about:

● estimates regarding our financial performance, including future revenue, expenses and capital requirements;

● our expected cash position and ability to obtain financing in the future on satisfactory terms or at all;

● expectations regarding our plans to research, develop and commercialize our current and future product candidates, including TARA-002, and IV Choline Chloride;

● expectations regarding the safety and efficacy of our product candidates;

● expectations regarding the timing, costs and outcomes of our clinical trials;

● expectations regarding potential market size;

● expectations regarding the timing of the availability of data from our clinical trials;

● expectations regarding the clinical utility, potential benefits and market acceptance of our product candidates;

● expectations regarding our commercialization, marketing and manufacturing capabilities and strategy;

● the implementation of our business model, strategic plans for our business, product candidates and technology;

● expectations regarding our ability to identify additional products or product candidates with significant commercial potential;

● developments and projections relating to our competitors and industry;

● our ability to acquire, license and invest in businesses, technologies, product candidates and products;

● our ability to remain listed on Nasdaq;

● the impact of and changes or developments in government laws and regulations, including any executive orders or tariffs;

● costs and outcomes relating to any disputes, governmental inquiries or investigations, regulatory proceedings, legal proceedings or litigation;

● our ability to attract and retain key personnel to manage our business effectively;

● our ability to prevent system failures, data breaches or violations of data protection laws;

● the timing or likelihood of regulatory filings and approvals;

● our ability to protect our intellectual property position; and

● the impact of general U.S., foreign and global economic, industry, market, trade, regulatory, political or public health conditions.

You should refer to the "Risk Factors" section contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus, for a discussion of important factors that may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. Given these risks, uncertainties and other factors, many of which are beyond our control, we cannot assure you that the forward-looking statements in this prospectus will prove to be accurate, and you should not place undue reliance on these forward-looking statements. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame, or at all.

Except as required by law, we assume no obligation to update these forward-looking statements publicly, or to revise any forward-looking statements to reflect events or developments occurring after the date of this prospectus, even if new information becomes available in the future.

**USE OF PROCEEDS**

We will retain broad discretion over the use of the net proceeds from the sale of the securities offered hereby. Except as described in any applicable prospectus supplement or in any related free writing prospectus that we may authorize to be provided to you in connection with a specific offering, we currently intend to use the net proceeds from the sale of the securities offered hereby, if any, for general corporate purposes, including research and development expenses, general and administrative expenses, sales and marketing expenses, capital expenditures, which may include costs of funding future license agreements, acquisitions, and working capital or for any other purpose we describe in the applicable prospectus supplement. We will set forth in the applicable prospectus supplement or free writing prospectus our intended use for the net proceeds received from the sale of any securities sold pursuant to the prospectus supplement or free writing prospectus. Pending the use of net proceeds, we plan to invest the net proceeds primarily in short-term interest-bearing obligations, investment-grade securities, certificates of deposit or government securities.

**DESCRIPTION OF CAPITAL STOCK**

*The following summary description of our capital stock is based on the provisions of our sixth amended and restated certificate of incorporation, as amended from time to time, our second amended and restated bylaws, our certificate of designation of preferences, rights and limitations of Series 1 Convertible Non-Voting Preferred Stock, as amended from time to time, and the applicable provisions of the Delaware General Corporation Law. This information is qualified entirely by reference to the applicable provisions of our sixth amended and restated certificate of incorporation, as amended from time to time, our second amended and restated bylaws, our certificate of designation of preferences, rights and limitations of Series 1 Convertible Non-Voting Preferred Stock, as amended from time to time, and the Delaware General Corporation Law. For information on how to obtain copies of our sixth amended and restated certificate of incorporation, as amended from time to time, our second amended and restated bylaws, our certificate of designation of preferences, rights and limitations of Series 1 Convertible Non-Voting Preferred Stock, as amended from time to time, each of which are exhibits to the registration statement of which this prospectus is a part, see "Where You Can Find Additional Information." We refer in this section to our sixth amended and restated certificate of incorporation, as amended from time to time, and our second amended and restated bylaws as our "certificate of incorporation" and our "bylaws", respectively.*

**General**

Our authorized capital stock consists of 110,000,000 shares, all with a par value of $0.001 per share, of which 100,000,000 shares are designated as common stock and 10,000,000 shares are designated as preferred stock. As of March 11, 2026, we had 56,204,237 shares of common stock and 3,524.795 shares of Series 1 Preferred Stock outstanding.

**Common Stock**

***Voting Rights***

 ****

Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders, including the election of directors. Our stockholders do not have cumulative voting rights in the election of directors. An election of directors by our stockholders shall be determined by a plurality of votes cast by the stockholders entitled to vote on the election.

***Dividends***

 ****

Subject to preferences that may be applicable to any then outstanding preferred stock, holders of our common stock are entitled to receive dividends, if any, as may be declared from time to time by the board of directors out of legally available funds.

***Liquidation***

 ****

In the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any then outstanding shares of preferred stock.

***Rights and Preferences***

 ****

Holders of common stock have no preemptive, conversion or subscription rights and there are no redemption or sinking fund provisions applicable to the common stock. The rights, preferences and privileges of the holders of common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate in the future.

**Preferred Stock**

Under our certificate of incorporation, our board of directors has the authority, without further action by stockholders, to designate up to 10,000,000 shares of preferred stock in one or more series and to fix or alter, from time to time, the powers, designations, preferences, and relative, participating, optional, or other special rights, if any, and such qualifications and restrictions, if any, of any series of preferred stock, including dividend rights, dividend rate, conversion rights, voting rights, rights and terms of redemption (including sinking fund provisions), redemption price or prices, and the liquidation preference of any wholly unissued series of preferred stock, any or all of which may be greater than the rights of the common stock, and to establish the number of shares constituting any such series.

Our board of directors will fix the rights, preferences, privileges, qualifications and restrictions of the preferred stock of each series that we sell under this prospectus and any applicable prospectus supplements in the certificate of designation relating to each such series. We will incorporate by reference as an exhibit to the registration statement of which this prospectus is a part or as an exhibit to one or more Current Reports on Form 8-K, the form of any certificate of designation that describes the terms of the series of preferred stock we are offering before the issuance of the related series of preferred stock. This description will include:

● the title and stated value;

● the number of shares we are offering;

● the liquidation preference per share;

● the purchase price per share;

● the dividend rate per share, dividend period, payment date or dates and method of calculation for dividends;

● whether dividends will be cumulative or non-cumulative and, if cumulative, the date from which dividends will accumulate;

● our right, if any, to defer payment of dividends and the maximum length of any such deferral period;

● the procedures for any auction and remarketing, if any;

● the provisions for a sinking fund, if any;

● the provisions for redemption or repurchase, if applicable, and any restrictions on our ability to exercise those redemption and repurchase rights;

● any listing of the preferred stock on any securities exchange or market;

● whether the preferred stock will be convertible into our common stock or other securities of ours, including warrants, and, if applicable, the conversion price, or how it will be calculated, and under what circumstances and the mechanism by which it may be adjusted, and the conversion period;

● whether the preferred stock will be exchangeable into debt securities or other securities of ours, and, if applicable, the exchange price, or how it will be calculated, and under what circumstances it may be adjusted, and the exchange period;

● voting rights, if any;

● preemptive rights, if any;

● restrictions on transfer, sale or other assignment, if any;

● whether interests in the preferred stock will be represented by depositary shares;

● a discussion of any material or special U.S. federal income tax considerations applicable to the preferred stock;

● the relative ranking and preferences of the preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our affairs;

● any limitations on issuances of any class or series of preferred stock ranking senior to or on parity with the series of preferred stock being issued as to dividend rights and rights if we liquidate, dissolve or wind up our affairs; and

● any other specific terms, rights, preferences, privileges, qualifications or limitations of, or restrictions on the preferred stock.

If we issue and sell shares of preferred stock pursuant to this prospectus, together with any applicable prospectus supplement or free writing prospectus, the shares will be fully paid and non-assessable.

The laws of the state of Delaware, the state of our incorporation, provide that the holders of preferred stock will have the right to vote separately, as a class, on any proposal involving fundamental changes in the rights of holders of such preferred stock. This right is in addition to any voting rights that may be provided for in the applicable certificate of designation.

The issuance of preferred stock could adversely affect the voting power, conversion or other rights of holders of common stock and reduce the likelihood that common stockholders will receive dividend payments and payments upon liquidation. Preferred stock could be issued quickly with terms designed to delay, deter or prevent a change in control of our company or make removal of management more difficult. Additionally, the issuance of preferred stock may have the effect of decreasing the market price of our common stock.

**Series 1 Convertible Non-Voting Preferred Stock**

 

On September 23, 2019, we entered into a subscription agreement, or the Subscription Agreement, with certain institutional investors, or the Purchasers, providing for the issuance and sale of 1,896,888 shares of common stock and 3,879.356 shares of Series 1 Preferred Stock. The Subscription Agreement was subsequently amended by a First Amendment to Subscription Agreement on November 19, 2019 and the Second Amendment to the Subscription Agreement on December 17, 2025. On September 24, 2020, we issued and sold in an underwritten public offering an additional 4,148 shares of our Series 1 Preferred Stock.

Each share of Series 1 Preferred Stock is convertible, at any time at the option of the holder thereof, a conversion rate equal to the stated value of $7,011.47 per share divided by an initial conversion price of $7.01 per share, subject to adjustment for any stock splits, stock dividends and similar events, and further subject to a 9.99% blocker provision. Upon written notice to us, a holder of Series 1 Preferred Stock may from time to time increase or decrease such limitation to any other percentage not in excess of 19.99% specified in such notice. Each share of Series 1 Preferred Stock is entitled to a preference of $10.00 per share upon liquidation of the Company, and thereafter will share ratably in any distributions or payments on an as-converted basis with the holders of common stock. In addition, upon the occurrence of certain transactions that involve the merger or consolidation of the Company, an exchange or tender offer, a sale of all or substantially all of the assets of the Company or a reclassification of its common stock, each share of Series 1 Preferred Stock will be convertible into the kind and amount of securities, cash and/or other property that the holder of a number of shares of common stock issuable upon conversion of one share of Series 1 Preferred Stock would receive in connection with such transaction. Except as provided in the Certificate of Designation or as required by law, the shares of Series 1 Preferred Stock have no voting rights.

In addition, pursuant to the Subscription Agreement, certain holders of Series 1 Preferred Stock have preemptive rights to participate pro rata in future equity financings of the Company, subject to certain exceptions and limitations. In addition, the lead Purchaser has the right (but not the obligation) to appoint up to two directors to our board of directors and one other Purchaser has the right (but not the obligation) to appoint one director to our board of directors, in each case subject to requirements related to holding minimum amounts of our equity securities. In addition, at any time when it does not have a designee serving on the board of directors, each of these Purchasers has a right to designate an individual to be present and participate in a non-voting capacity in all meetings of our board of directors and committees of the board. Further, we have also agreed not to take certain actions related to the business without the consent of the lead Purchaser for so long as such lead Purchaser continues to hold a minimum amount of the Series 1 Preferred Stock purchased under the Subscription Agreement. These actions include (a) liquidating, dissolving or winding-up the affairs of the Company; (b) any merger, consolidation or other Fundamental Transaction (defined in the Subscription Agreement); (c) amendments to our certificate of incorporation or bylaws in a manner that adversely effects the Series 1 Preferred Stock and that is disproportionate to the effect on any other class or series of capital stock; (d) material changes to the principal business of the Company; (e) purchases, redemptions or the payment of dividends on any capital stock (subject to certain exceptions); (f) the sale, assignment, license or pledge of TARA-002; and (g) transactions involving assets of the Company with an aggregate value over $2.5 million.

Concurrently with the execution of the Subscription Agreement, we entered into a registration rights agreement, or the Registration Rights Agreement, dated September 23, 2019, with the Purchasers. Pursuant to the terms of the Registration Rights Agreement, we prepared and filed a registration statement on Form S-3 on January 30, 2020 for the purposes of registering the resale of the shares of common stock issued pursuant to the Subscription Agreement and the shares of common stock issuable upon conversion of the Series 1 Preferred Stock issued pursuant to the Subscription Agreement. Additionally, pursuant to the Subscription Agreement, if at any time after 180 days following the date of closing of the issuance and sale of Series 1 Preferred Stock and common stock pursuant to the Subscription Agreement, either the lead Purchaser or another Purchaser determines that it may be deemed to be an "affiliate" of the Company within the meaning of Rule 144 of the Securities Act, we shall enter into a registration rights agreement with such Purchaser requiring us to file a registration statement on Form S-3 pursuant to a demand by such Purchaser in connection with the resale of such Purchaser's shares of common stock.

The preceding summaries do not purport to be complete and are qualified in their entirety by reference to the Certificate of Designation for the Series 1 Preferred Stock, the Registration Rights Agreement, the Subscription Agreement and the amendments thereto, as applicable, copies of which are attached hereto as Exhibits 3.6, 4.3 10.1, 10.2 and 10.3 respectively, and which are incorporated herein by reference.

**Delaware Anti-Takeover Law and Provisions of Our Certificate of Incorporation, as amended, and Bylaws, as amended**

Our certificate of incorporation and our bylaws contain certain provisions that could have the effect of delaying, deterring or preventing another party from acquiring control of us, and therefore could adversely affect the market price of our common stock. These provisions and certain provisions of Delaware General Corporation Law, or the DGCL, which are summarized below, may also discourage coercive takeover practices and inadequate takeover bids, and are designed, in part, to encourage persons seeking to acquire control of us to negotiate first with our board of directors. We believe that the benefits of increased protection of our potential ability to negotiate more favorable terms with an unfriendly or unsolicited acquirer outweigh the disadvantages of potentially discouraging a proposal to acquire us.

***Delaware Anti-Takeover Law***

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We are subject to Section 203 of the DGCL, or Section 203. Section 203 generally prohibits a public Delaware corporation from engaging in a "business combination" with an "interested stockholder" for a period of three years following the time that such stockholder became an interested stockholder, unless:

● prior to such time the board of directors of the corporation approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder;

● upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding (but not the outstanding voting stock owned by the interested stockholder) those shares owned (i) by persons who are directors and also officers and (ii) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

● at or subsequent to such time the business combination is approved by the board of directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least 66 2/3% of the outstanding voting stock which is not owned by the interested stockholder.

Section 203 defines a business combination to include:

● any merger or consolidation involving the corporation and the interested stockholder;

● any sale, transfer, pledge or other disposition involving the interested stockholder of 10% or more of the assets of the corporation;

● subject to exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested stockholder;

● subject to exceptions, any transaction involving the corporation that has the effect of increasing the proportionate share of the stock of any class or series of the corporation beneficially owned by the interested stockholder; and

● the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the corporation.

In general, Section 203 defines an interested stockholder as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by the entity or person.

***Certificate of Incorporation and Bylaws***

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Our certificate of incorporation and bylaws contain certain provisions that are intended to enhance the likelihood of continuity and stability in the composition of the board of directors and which may have the effect of delaying, deferring or preventing a future takeover or change in control unless such takeover or change in control is approved by the board of directors. In addition, the authorization of undesignated preferred stock makes it possible for our board of directors to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to change our control. These provisions include:

*Classified board of directors*

 

Our certificate of incorporation provides that the board of directors is divided into three classes of directors, with the classes as nearly equal in number as possible. Any additional directorships resulting from an increase in the number of directors will be apportioned by the board of directors among the three classes. The classification of directors will have the effect of making it more difficult for stockholders to change the composition of the board of directors.

Our certificate of incorporation provides that, subject to any rights of holders of preferred stock to elect additional directors under specified circumstances, the number of directors will be fixed exclusively pursuant to a resolution adopted by the board of directors. Any additional directorships resulting from an increase in the number of directors will be distributed among the three classes so that, as nearly as possible, each class shall consist of one third of the board of directors.

*Action by Written Consent; Special Meetings of Stockholders*

 

Our certificate of incorporation provides that stockholder action can be taken only at an annual or special meeting of stockholders and cannot be taken by written consent in lieu of a meeting. Our certificate of incorporation and bylaws also provide that, except as otherwise required by law, special meetings of the stockholders can be called only by or at the direction of the board of directors pursuant to a resolution adopted by a majority of the total number of directors. Except as described above, stockholders will not be permitted to call a special meeting or to require the board of directors to call a special meeting.

*Removal of Directors*

 

Our certificate of incorporation provides that our directors may be removed only for cause by the affirmative vote of at least 75% of the voting power of our outstanding shares of capital stock, voting together as a single class and entitled to vote in the election of directors. This requirement of a supermajority vote to remove directors could enable a minority of our stockholders to prevent a change in the composition of the board of directors.

*Advance Notice Procedures*

 

Our bylaws include an advance notice procedure for stockholder proposals to be brought before an annual meeting of our stockholders, including proposed nominations of persons for election to the board of directors. Stockholders at an annual meeting will only be able to consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of the board of directors or by a stockholder who was a stockholder of record on the record date for the meeting, who is entitled to vote at the meeting and who has given our Secretary timely written notice, in proper form, of the stockholder's intention to bring that business before the meeting. Although the bylaws do not give the board of directors the power to approve or disapprove stockholder nominations of candidates or proposals regarding other business to be conducted at a special or annual meeting, the bylaws may have the effect of precluding the conduct of certain business at a meeting if the proper procedures are not followed or may discourage or deter a potential acquirer from conducting a solicitation of proxies to elect its own slate of directors or otherwise attempting to obtain control of us.

*Super Majority Approval Requirements*

 

The Delaware General Corporation Law generally provides that the affirmative vote of a majority of the shares entitled to vote on any matter is required to amend a corporation's certificate of incorporation or bylaws, unless either a corporation's certificate of incorporation or bylaws requires a greater percentage. Our certificate of incorporation and bylaws provide that the affirmative vote of holders of at least 75% of the outstanding shares of capital stock, voting together as a single class and entitled to vote in the election of directors will be required to amend, alter, change or repeal the bylaws and certain portions of the certificate of incorporation. This requirement of a supermajority vote to approve amendments to our bylaws could enable a minority of our stockholders to exercise veto power over any such amendments.

*Authorized but Unissued Shares*

 

Our authorized but unissued shares of common stock will be available for future issuance without stockholder approval. These additional shares may be utilized for a variety of corporate purposes, including future public offerings to raise additional capital, corporate acquisitions and employee benefit plans. The existence of authorized but unissued shares of common stock could render more difficult or discourage an attempt to obtain control of a majority of our common stock by means of a proxy contest, tender offer, merger or otherwise.

*Exclusive Forum*

 

**Transfer Agent and Registrar**

The transfer agent and registrar for our common stock is Computershare Trust Company, N.A.

**Listing**

Our common stock is listed on Nasdaq under the symbol "TARA."

**DESCRIPTION OF DEBT SECURITIES**

We may issue debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. While the terms we have summarized below will apply generally to any debt securities that we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. The terms of any debt securities offered under a prospectus supplement may differ from the terms described below. Unless the context requires otherwise, whenever we refer to the indenture, we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.

We will issue the debt securities under the indenture that we will enter into with the trustee named in the indenture. The indenture will be qualified under the Trust Indenture Act of 1939, as amended, or the Trust Indenture Act. We have filed the form of indenture as an exhibit to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of the debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part, or will be incorporated by reference from, reports that we file with the SEC.

The following summary of material provisions of the debt securities and the indenture is subject to, and qualified in its entirety by reference to, all of the provisions of the indenture applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete indenture that contains the terms of the debt securities.

**General**

The indenture does not limit the amount of debt securities that we may issue. It provides that we may issue debt securities up to the principal amount that we may authorize and may be in any currency or currency unit that we may designate. Except for the limitations on consolidation, merger and sale of all or substantially all of our assets contained in the indenture, the terms of the indenture do not contain any covenants or other provisions designed to give holders of any debt securities protection against changes in our operations, financial condition or transactions involving us.

We may issue the debt securities issued under the indenture as "discount securities," which means they may be sold at a discount below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may be issued with "original issue discount," or OID, for U.S. federal income tax purposes because of interest payment and other characteristics or terms of the debt securities. Material U.S. federal income tax considerations applicable to debt securities issued with OID will be described in more detail in any applicable prospectus supplement.

We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

● the title of the series of debt securities;

● any limit upon the aggregate principal amount that may be issued;

● the maturity date or dates;

● the form of the debt securities of the series;

● the applicability of any guarantees;

● whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;

● whether the debt securities rank as senior debt, senior subordinated debt, subordinated debt or any combination thereof, and the terms of any subordination;

● if the price (expressed as a percentage of the aggregate principal amount thereof) at which such debt securities will be issued is a price other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, or if applicable, the portion of the principal amount of such debt securities that is convertible into another security or the method by which any such portion shall be determined;

● the interest rate or rates, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;

● our right, if any, to defer payment of interest and the maximum length of any such deferral period;

● if applicable, the date or dates after which, or the period or periods during which, and the price or prices at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;

● the date or dates, if any, on which, and the price or prices at which we are obligated, pursuant to any mandatory sinking fund or analogous fund provisions or otherwise, to redeem, or at the holder's option to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;

● the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;

● any and all terms, if applicable, relating to any auction or remarketing of the debt securities of that series and any security for our obligations with respect to such debt securities and any other terms which may be advisable in connection with the marketing of debt securities of that series;

● whether the debt securities of the series shall be issued in whole or in part in the form of a global security or securities; the terms and conditions, if any, upon which such global security or securities may be exchanged in whole or in part for other individual securities; and the depositary for such global security or securities;

● if applicable, the provisions relating to conversion or exchange of any debt securities of the series and the terms and conditions upon which such debt securities will be so convertible or exchangeable, including the conversion or exchange price, as applicable, or how it will be calculated and may be adjusted, any mandatory or optional (at our option or the holders' option) conversion or exchange features, the applicable conversion or exchange period and the manner of settlement for any conversion or exchange;

● if other than the full principal amount thereof, the portion of the principal amount of debt securities of the series which shall be payable upon declaration of acceleration of the maturity thereof;

● additions to or changes in the covenants applicable to the particular debt securities being issued, including, among others, the consolidation, merger or sale covenant;

● additions to or changes in the events of default with respect to the securities and any change in the right of the trustee or the holders to declare the principal, premium, if any, and interest, if any, with respect to such securities to be due and payable;

● additions to or changes in or deletions of the provisions relating to covenant defeasance and legal defeasance;

● additions to or changes in the provisions relating to satisfaction and discharge of the indenture;

● additions to or changes in the provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;

● the currency of payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars;

● whether interest will be payable in cash or additional debt securities at our or the holders' option and the terms and conditions upon which the election may be made;

● the terms and conditions, if any, upon which we will pay amounts in addition to the stated interest, premium, if any and principal amounts of the debt securities of the series to any holder that is not a "United States person" for federal tax purposes;

● any restrictions on transfer, sale or assignment of the debt securities of the series; and

● any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, any other additions or changes in the provisions of the indenture, and any terms that may be required by us or advisable under applicable laws or regulations.

**Conversion or Exchange Rights**

We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our common stock or our other securities. We will include provisions as to settlement upon conversion or exchange and whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.

**Consolidation, Merger or Sale**

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indenture will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of our assets as an entirety or substantially as an entirety. However, any successor to or acquirer of such assets (other than any subsidiary of ours) must assume all of our obligations under the indenture or the debt securities, as appropriate.

**Events of Default under the Indenture**

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indenture with respect to any series of debt securities that we may issue:

● if we fail to pay any installment of interest on any series of debt securities, as and when the same shall become due and payable, and such default continues for a period of 90 days; provided, however, that a valid extension of an interest payment period by us in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of interest for this purpose;

● if we fail to pay the principal of, or premium, if any, on any series of debt securities as and when the same shall become due and payable whether at maturity, upon redemption, by declaration or otherwise, or in any payment required by any sinking or analogous fund established with respect to such series; provided, however, that a valid extension of the maturity of such debt securities in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of principal or premium, if any;

● if we fail to observe or perform any other covenant or agreement contained in the debt securities or the indenture, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive written notice of such failure, requiring the same to be remedied and stating that such is a notice of default thereunder, from the trustee or holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and

● if specified events of bankruptcy, insolvency or reorganization occur.

If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the trustee if notice is given by such holders, may declare the unpaid principal of, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default specified in the last bullet point above occurs with respect to us, the principal amount of and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the trustee or any holder.

The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any waiver shall cure the default or event of default.

Subject to the terms of the indenture, if an event of default under an indenture shall occur and be continuing, the trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of that series, provided that:

● the direction so given by the holder is not in conflict with any law or the applicable indenture; and

● subject to its duties under the Trust Indenture Act, the trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.

A holder of the debt securities of any series will have the right to institute a proceeding under the indenture or to appoint a receiver or trustee, or to seek other remedies only if:

● the holder has given written notice to the trustee of a continuing event of default with respect to that series;

● the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made written request;

● such holders have offered to the trustee indemnity satisfactory to it against the costs, expenses and liabilities to be incurred by the trustee in compliance with the request; and

● the trustee does not institute the proceeding, and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 90 days after the notice, request and offer.

These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.

We will periodically file statements with the trustee regarding our compliance with specified covenants in the indenture.

**Modification of Indenture; Waiver**

We and the trustee may change an indenture without the consent of any holders with respect to specific matters:

● to cure any ambiguity, defect or inconsistency in the indenture or in the debt securities of any series;

● to comply with the provisions described above under "Description of Debt Securities—Consolidation, Merger or Sale;"

● to provide for uncertificated debt securities in addition to or in place of certificated debt securities;

● to add to our covenants, restrictions, conditions or provisions such new covenants, restrictions, conditions or provisions for the benefit of the holders of all or any series of debt securities, to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default or to surrender any right or power conferred upon us in the indenture;

● to add to, delete from or revise the conditions, limitations, and restrictions on the authorized amount, terms, or purposes of issue, authentication and delivery of debt securities, as set forth in the indenture;

● to make any change that does not adversely affect the interests of any holder of debt securities of any series in any material respect;

● to provide for the issuance of and establish the form and terms and conditions of the debt securities of any series as provided above under "Description of Debt Securities—General" to establish the form of any certifications required to be furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;

● to evidence and provide for the acceptance of appointment under any indenture by a successor trustee; or

● to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act.

● In addition, under the indenture, the rights of holders of a series of debt securities may be changed by us and the trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may make the following changes only with the consent of each holder of any outstanding debt securities affected:

● extending the fixed maturity of any debt securities of any series;

● reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any series of any debt securities; or

● reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver.

**Discharge**

Each indenture provides that we can elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:

● provide for payment;

● register the transfer or exchange of debt securities of the series;

● replace stolen, lost or mutilated debt securities of the series;

● pay principal of and premium and interest on any debt securities of the series;

● maintain paying agencies;

● hold monies for payment in trust;

● recover excess money held by the trustee;

● compensate and indemnify the trustee; and

● appoint any successor trustee.

In order to exercise our rights to be discharged, we must deposit with the trustee money or government obligations sufficient to pay all the principal of, any premium, if any, and interest on, the debt securities of the series on the dates payments are due.

**Form, Exchange and Transfer**

We will issue the debt securities of each series only in fully registered form without coupons and, unless we provide otherwise in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indenture provides that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company, or DTC, or another depositary named by us and identified in the applicable prospectus supplement with respect to that series. To the extent the debt securities of a series are issued in global form and as book-entry, a description of terms relating to any book-entry securities will be set forth in the applicable prospectus supplement.

At the option of the holder, subject to the terms of the indenture and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.

Subject to the terms of the indenture and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will impose no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.

We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.

If we elect to redeem the debt securities of any series, we will not be required to:

● issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or

● register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.

**Information Concerning the Trustee**

The trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of default under an indenture, the trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the trustee is under no obligation to exercise any of the powers given to it by the indenture at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur.

**Payment and Paying Agents**

Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.

We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in the applicable prospectus supplement, we will designate the corporate trust office of the trustee as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.

All money we pay to a paying agent or the trustee for the payment of the principal of or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.

**Governing Law**

The indenture and the debt securities will be governed by and construed in accordance with the internal laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.

**DESCRIPTION OF WARRANTS**

The following description, together with the additional information we may include in any applicable prospectus supplements and free writing prospectuses, summarizes the material terms and provisions of the warrants that we may offer under this prospectus, which may consist of warrants to purchase common stock, preferred stock or debt securities and may be issued in one or more series. Warrants may be issued independently or together with common stock, preferred stock or debt securities offered by any prospectus supplement, and may be attached to or separate from those securities. While the terms we have summarized below will apply generally to any warrants that we may offer under this prospectus, we will describe the particular terms of any series of warrants that we may offer in more detail in the applicable prospectus supplement and any applicable free writing prospectus. The terms of any warrants offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

We have filed forms of the warrant agreements as exhibits to the registration statement of which this prospectus is a part. We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from reports that we file with the SEC, the form of warrant agreement, if any, including a form of warrant certificate, that describes the terms of the particular series of warrants we are offering. The following summaries of material provisions of the warrants and the warrant agreements are subject to, and qualified in their entirety by reference to, all the provisions of the warrant agreement and warrant certificate applicable to the particular series of warrants that we may offer under this prospectus. We urge you to read the applicable prospectus supplements related to the particular series of warrants that we may offer under this prospectus, as well as any related free writing prospectuses, and the complete warrant agreements and warrant certificates that contain the terms of the warrants.

**General**

In the applicable prospectus supplement, we will describe the terms of the series of warrants being offered, including, to the extent applicable:

● the title of such securities;

● the offering price or prices and aggregate number of warrants offered;

● the currency or currencies for which the warrants may be purchased;

● the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each such security or each principal amount of such security;

● the date on and after which the warrants and the related securities will be separately transferable;

● the minimum or maximum amount of such warrants which may be exercised at any one time;

● in the case of warrants to purchase debt securities, the principal amount of debt securities purchasable upon exercise of one warrant and the price at which, and currency in which, this principal amount of debt securities may be purchased upon such exercise;

● in the case of warrants to purchase common stock or preferred stock, the number of shares of common stock or preferred stock, as the case may be, purchasable upon the exercise of one warrant and the price at which, and the currency in which, these shares may be purchased upon such exercise;

● the effect of any merger, consolidation, sale or other disposition of our business on the warrant agreements and the warrants;

● the terms of any rights to redeem or call the warrants;

● the terms of any rights to force the exercise of the warrants;

● any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;

● the dates on which the right to exercise the warrants will commence and expire;

● the manner in which the warrant agreements and warrants may be modified;

● a discussion of any material or special U.S. federal income tax considerations of holding or exercising the warrants;

● the terms of the securities issuable upon exercise of the warrants; and

● any other specific terms, preferences, rights or limitations of or restrictions on the warrants.

Before exercising their warrants, holders of warrants will not have any of the rights of holders of the securities purchasable upon such exercise, including:

● in the case of warrants to purchase common stock or preferred stock, the right to receive dividends, if any, or payments upon our liquidation, dissolution or winding up or to exercise voting rights, if any; or

● in the case of warrants to purchase debt securities, the right to receive payments of principal of, or premium, if any, or interest on, the debt securities purchasable upon exercise or to enforce covenants in the applicable indenture.

**Exercise of Warrants**

Each warrant will entitle the holder to purchase the securities that we specify in the applicable prospectus supplement at the exercise price that we describe in the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.

Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent in immediately available funds, as provided in the applicable prospectus supplement. We will set forth on the reverse side of the warrant certificate and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to the warrant agent in connection with the exercise of the warrant.

On receipt of payment and the warrant or warrant certificate, as applicable, properly completed and duly executed at the corporate trust office of the warrant agent, if any, or any other office, including ours, indicated in the prospectus supplement, we will, as soon as practicable, issue and deliver the securities purchasable on such exercise. If less than all of the warrants (or the warrants represented by such warrant certificate) are exercised, a new warrant or a new warrant certificate, as applicable, will be issued for the remaining warrants.

**Governing Law**

Unless we provide otherwise in the applicable prospectus supplement, the warrants and warrant agreements, and any claim, controversy or dispute arising under or related to the warrants or warrant agreements, will be governed by and construed in accordance with the laws of the State of New York.

**Enforceability of Rights by Holders of Warrants**

Each warrant agent, if any, will act solely as our agent under the applicable warrant agreement and will not assume any obligation or relationship of agency or trust with any holder of any warrant. A single bank or trust company may act as warrant agent for more than one issue of warrants. A warrant agent will have no duty or responsibility in case of any default by us under the applicable warrant agreement or warrant, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a warrant may, without the consent of the related warrant agent or the holder of any other warrant, enforce by appropriate legal action its right to exercise, and receive the securities purchasable upon exercise of, its warrants.

**LEGAL OWNERSHIP OF SECURITIES**

We can issue securities in registered form or in the form of one or more global securities. We describe global securities in greater detail below. We refer to those persons who have securities registered in their own names on the books that we or any applicable trustee or depositary maintain for this purpose as the "holders" of those securities. These persons are the legal holders of the securities. We refer to those persons who, indirectly through others, own beneficial interests in securities that are not registered in their own names, as "indirect holders" of those securities. As we discuss below, indirect holders are not legal holders, and investors in securities issued in book-entry form or in street name will be indirect holders.

**Book-Entry Holders**

We may issue securities in book-entry form only, as we will specify in the applicable prospectus supplement. This means securities may be represented by one or more global securities registered in the name of a financial institution that holds them as depositary on behalf of other financial institutions that participate in the depositary's book-entry system. These participating institutions, which are referred to as participants, in turn, hold beneficial interests in the securities on behalf of themselves or their customers.

Only the person in whose name a security is registered is recognized as the holder of that security. Global securities will be registered in the name of the depositary or its participants. Consequently, for global securities, we will recognize only the depositary as the holder of the securities, and we will make all payments on the securities to the depositary. The depositary passes along the payments it receives to its participants, which in turn pass the payments along to their customers who are the beneficial owners. The depositary and its participants do so under agreements they have made with one another or with their customers; they are not obligated to do so under the terms of the securities.

As a result, investors in a global security will not own securities directly. Instead, they will own beneficial interests in a global security, through a bank, broker or other financial institution that participates in the depositary's book-entry system or holds an interest through a participant. As long as the securities are issued in global form, investors will be indirect holders, and not legal holders, of the securities.

**Street Name Holders**

We may terminate a global security or issue securities that are not issued in global form. In these cases, investors may choose to hold their securities in their own names or in "street name." Securities held by an investor in street name would be registered in the name of a bank, broker or other financial institution that the investor chooses, and the investor would hold only a beneficial interest in those securities through an account he or she maintains at that institution.

For securities held in street name, we or any applicable trustee or depositary will recognize only the intermediary banks, brokers and other financial institutions in whose names the securities are registered as the holders of those securities, and we or any such trustee or depositary will make all payments on those securities to them. These institutions pass along the payments they receive to their customers who are the beneficial owners, but only because they agree to do so in their customer agreements or because they are legally required to do so. Investors who hold securities in street name will be indirect holders, not holders, of those securities.

**Legal Holders**

Our obligations, as well as the obligations of any applicable trustee or third party employed by us or a trustee, run only to the legal holders of the securities. We do not have obligations to investors who hold beneficial interests in global securities, in street name or by any other indirect means. This will be the case whether an investor chooses to be an indirect holder of a security or has no choice because we are issuing the securities only in global form.

For example, once we make a payment or give a notice to the legal holder, we have no further responsibility for the payment or notice even if that legal holder is required, under agreements with its participants or customers or by law, to pass it along to the indirect holders but does not do so. Similarly, we may want to obtain the approval of the holders to amend an indenture, to relieve us of the consequences of a default or of our obligation to comply with a particular provision of an indenture, or for other purposes. In such an event, we would seek approval only from the legal holder, and not the indirect holders, of the securities. Whether and how the legal holders contact the indirect holders is up to the legal holders.

**Special Considerations for Indirect Holders**

If you hold securities through a bank, broker or other financial institution, either in book-entry form because the securities are represented by one or more global securities or in street name, you should check with your own institution to find out:

● how it handles securities payments and notices;

● whether it imposes fees or charges;

● how it would handle a request for the holders' consent, if ever required;

● whether and how you can instruct it to send you securities registered in your own name so you can be a holder, if that is permitted in the future;

● how it would exercise rights under the securities if there were a default or other event triggering the need for holders to act to protect their interests; and

● if the securities are in book-entry form, how the depositary's rules and procedures will affect these matters.

**Global Securities**

A global security is a security that represents one or any other number of individual securities held by a depositary. Generally, all securities represented by the same global securities will have the same terms.

Each security issued in book-entry form will be represented by a global security that we issue to, deposit with and register in the name of a financial institution or its nominee that we select. The financial institution that we select for this purpose is called the depositary. Unless we specify otherwise in the applicable prospectus supplement, DTC, New York, New York, will be the depositary for all securities issued in book-entry form.

A global security may not be transferred to or registered in the name of anyone other than the depositary, its nominee or a successor depositary, unless special termination situations arise. We describe those situations below under "—Special Situations When a Global Security Will Be Terminated." As a result of these arrangements, the depositary, or its nominee, will be the sole registered owner and legal holder of all securities represented by a global security, and investors will be permitted to own only beneficial interests in a global security. Beneficial interests must be held by means of an account with a broker, bank or other financial institution that in turn has an account with the depositary or with another institution that does. Thus, an investor whose security is represented by a global security will not be a legal holder of the security, but only an indirect holder of a beneficial interest in the global security.

If the prospectus supplement for a particular security indicates that the security will be issued as a global security, then the security will be represented by a global security at all times unless and until the global security is terminated. If termination occurs, we may issue the securities through another book-entry clearing system or decide that the securities may no longer be held through any book-entry clearing system.

**Special Considerations for Global Securities**

As an indirect holder, an investor's rights relating to a global security will be governed by the account rules of the investor's financial institution and of the depositary, as well as general laws relating to securities transfers. We do not recognize an indirect holder as a holder of securities and instead deal only with the depositary that holds the global security.

If securities are issued only as global securities, an investor should be aware of the following:

● an investor cannot cause the securities to be registered in his or her name, and cannot obtain non-global certificates for his or her interest in the securities, except in the special situations we describe below;

● an investor will be an indirect holder and must look to his or her own bank or broker for payments on the securities and protection of his or her legal rights relating to the securities, as we describe above;

● an investor may not be able to sell interests in the securities to some insurance companies and to other institutions that are required by law to own their securities in non-book-entry form;

● an investor may not be able to pledge his or her interest in the global security in circumstances where certificates representing the securities must be delivered to the lender or other beneficiary of the pledge in order for the pledge to be effective;

● the depositary's policies, which may change from time to time, will govern payments, transfers, exchanges and other matters relating to an investor's interest in the global security;

● we and any applicable trustee have no responsibility for any aspect of the depositary's actions or for its records of ownership interests in the global security, nor will we or any applicable trustee supervise the depositary in any way;

● the depositary may, and we understand that DTC will, require that those who purchase and sell interests in the global security within its book-entry system use immediately available funds, and your broker or bank may require you to do so as well; and

● financial institutions that participate in the depositary's book-entry system, and through which an investor holds its interest in the global security, may also have their own policies affecting payments, notices and other matters relating to the securities.

There may be more than one financial intermediary in the chain of ownership for an investor. We do not monitor and are not responsible for the actions of any of those intermediaries.

**Special Situations When a Global Security Will Be Terminated**

In a few special situations described below, a global security will terminate and interests in it will be exchanged for physical certificates representing those interests. After that exchange, the choice of whether to hold securities directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in securities transferred to their own names, so that they will be direct holders. We have described the rights of holders and street name investors above.

Unless we provide otherwise in the applicable prospectus supplement, the global security will terminate when the following special situations occur:

● if the depositary notifies us that it is unwilling, unable or no longer qualified to continue as depositary for that global security and we do not appoint another institution to act as depositary within 90 days;

● if we notify any applicable trustee that we wish to terminate that global security; or

● if an event of default has occurred with regard to securities represented by that global security and has not been cured or waived.

The applicable prospectus supplement may also list additional situations for terminating a global security that would apply only to the particular series of securities covered by the prospectus supplement. When a global security terminates, the depositary, and neither we nor any applicable trustee, is responsible for deciding the names of the institutions that will be the initial direct holders.

**PLAN OF DISTRIBUTION**

We may sell the securities from time to time pursuant to underwritten public offerings, negotiated transactions, block trades or a combination of these methods. We may sell the securities to or through underwriters or dealers, through agents or directly to one or more purchasers. We may distribute securities from time to time in one or more transactions:

● at a fixed price or prices, which may be changed;

● at market prices prevailing at the time of sale;

● at prices related to such prevailing market prices; or

● at negotiated prices.

We may also sell equity securities covered by this registration statement in an "at the market" offering as defined in Rule 415 under the Securities Act.

Such offering may be made into an existing trading market for such securities in transactions at other than a fixed price, either:

● on or through the facilities of Nasdaq or any other securities exchange or quotation or trading service on which such securities may be listed, quoted or traded at the time of sale; and/or

● to or through a market maker other than on Nasdaq or such other securities exchanges or quotation or trading services.

Such "at the market" offerings, if any, may be conducted by underwriters acting as principal or agent.

A prospectus supplement or supplements (and any related free writing prospectus that we may authorize to be provided to you) will describe the terms of the offering of the securities, including, to the extent applicable:

● the name or names of any underwriters, dealers or agents, if any;

● the purchase price of the securities and the proceeds we will receive from the sale;

● any over-allotment options under which underwriters may purchase additional securities from us;

● any agency fees or underwriting discounts and other items constituting agents' or underwriters' compensation;

● any public offering price;

● any discounts or concessions allowed or reallowed or paid to dealers; and

● any securities exchange or market on which the securities may be listed.

Only underwriters named in the prospectus supplement are underwriters of the securities offered by the prospectus supplement.

If underwriters are used in the sale, they will acquire the securities for their own account and may resell the securities from time to time in one or more transactions at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase the securities will be subject to the conditions set forth in the applicable underwriting agreement. We may offer the securities to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. Subject to certain conditions, the underwriters will be obligated to purchase all of the securities offered by the prospectus supplement. Any public offering price and any discounts or concessions allowed or reallowed or paid to dealers may change from time to time. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement, naming the underwriter, the nature of any such relationship.

We may sell securities directly or through agents we designate from time to time. We will name any agent involved in the offering and sale of securities, and we will describe any commissions we will pay the agent in the prospectus supplement. Unless the prospectus supplement states otherwise, our agent will act on a best-efforts basis for the period of its appointment.

We may authorize agents or underwriters to solicit offers by certain types of institutional investors to purchase securities from us at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. We will describe the conditions to these contracts and the commissions we must pay for solicitation of these contracts in the prospectus supplement.

We may provide agents and underwriters with indemnification against civil liabilities related to this offering, including liabilities under the Securities Act, or contribution with respect to payments that the agents or underwriters may make with respect to these liabilities. Agents and underwriters may engage in transactions with, or perform services for, us in the ordinary course of business.

All securities we offer, other than common stock, will be new issues of securities with no established trading market. Any underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. We cannot guarantee the liquidity of the trading markets for any securities.

Any underwriter may engage in overallotment, stabilizing transactions, short covering transactions and penalty bids. Overallotment involves sales in excess of the offering size, which create a short position. Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Short covering transactions involve purchases of the securities in the open market after the distribution is completed to cover short positions. Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a stabilizing or covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time. These transactions may be effected on any exchange or over-the-counter market or otherwise.

Any underwriters who are qualified market makers on Nasdaq may engage in passive market making transactions in the securities on Nasdaq in accordance with Rule 103 of Regulation M, during the business day prior to the pricing of the offering, before the commencement of offers or sales of the securities. Passive market makers must comply with applicable volume and price limitations and must be identified as passive market makers. In general, a passive market maker must display its bid at a price not in excess of the highest independent bid for such security; if all independent bids are lowered below the passive market maker's bid, however, the passive market maker's bid must then be lowered when certain purchase limits are exceeded. Passive market making may stabilize the market price of the securities at a level above that which might otherwise prevail in the open market and, if commenced, may be discontinued at any time.

**LEGAL MATTERS**

Unless otherwise indicated in the applicable prospectus supplement, certain legal matters in connection with the offering and the validity of the securities offered by this prospectus, and any supplement thereto, will be passed upon by Kirkland & Ellis LLP. If any legal matters relating to offerings made in connection with this prospectus are passed upon by counsel for the underwriters, dealers or agents, that counsel will be named in the prospectus supplement relating to such offering.

**EXPERTS**

The consolidated financial statements of Protara Therapeutics, Inc. appearing in Protara Therapeutic, Inc.'s Annual Report (Form 10-K) for the year ended December 31, 2025, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report thereon included therein, and incorporated herein by reference. Such financial statements are, and audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the report of Ernst & Young LLP pertaining to such financial statements (to the extent covered by consents filed with the Securities and Exchange Commission) given on the authority of such firm as experts in accounting and auditing.

**WHERE YOU CAN FIND MORE INFORMATION**

This prospectus is part of the registration statement on Form S-3 we filed with the SEC under the Securities Act. This prospectus does not contain all of the information set forth in the registration statement and the exhibits to the registration statement. For further information with respect to us and the securities we are offering under this prospectus, we refer you to the registration statement and the exhibits and schedules filed as a part of the registration statement. You should rely only on the information contained in this prospectus or incorporated by reference. We have not authorized anyone else to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this prospectus is accurate as of any date other than the date on the front page of this prospectus, regardless of the time of delivery of this prospectus or any sale of the securities offered by this prospectus.

We must comply with the informational requirements of the Exchange Act, and we are required to file reports and proxy statements and other information with the SEC. You may read and copy these reports, proxy statements and other information on the SEC's website at http://www.sec.gov, which contains reports, proxy and information statements and other information regarding issuers like us that file electronically with the SEC. We maintain a website at www.protaratx.com. The information contained in, or that can be accessed through, our website is not incorporated by reference herein and is not part of this prospectus.

Statements contained in this prospectus as to the contents of any contract or other document are not necessarily complete, and in each instance we refer you to the copy of the contract or document filed as an exhibit to the registration statement, each such statement being qualified in all respects by such reference.

**INCORPORATION OF CERTAIN INFORMATION BY REFERENCE**

The SEC allows us to "incorporate by reference" information that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. Information in this prospectus supersedes information incorporated by reference that we filed with the SEC prior to the date of this prospectus, while information that we file later with the SEC will automatically update and supersede the information in this prospectus. We also incorporate by reference into this prospectus the documents listed below and any future filings made by us with the SEC (other than current reports or portions thereof furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on such form that are related to such items and other portions of documents that are furnished, but not filed, pursuant to applicable rules promulgated by the SEC) that are filed by us with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) after the date of the initial filing of the registration statement of which this prospectus is a part and prior to effectiveness of the registration statement, and (ii) after the effectiveness of the registration statement but prior to the termination of the offering of the securities covered by the applicable prospectus supplement:

● our Annual Report on [Form 10-K](http://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026025433/ea0277639-10k_protara.htm) for the fiscal year ended December 31, 2025, filed with the SEC on March 10, 2026 (including those portions of our [Proxy Statement](http://www.sec.gov/ix?doc=/Archives/edgar/data/1359931/000121390026048536/ea0286228-04.htm) for our 2026 Annual Meeting of Stockholders filed with the SEC on April 28, 2026 that are deemed to be incorporated by reference therein);

● our Quarterly Report on [Form 10-Q](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026055463/ea0287944-10q_protara.htm) for the quarter ended March 31, 2026 filed with the SEC on May 13, 2026;

● our Current Report on [Form 8-K](http://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026019617/ea0277972-8k_protara.htm) filed on February 24, 2026 (only with respect to the items "filed" and not "furnished"); and

● the description of our common stock contained in our registration statement on [Form 8-A](http://www.sec.gov/Archives/edgar/data/1359931/000110465914072025/a14-15225_88a12b.htm) filed with the SEC on October 16, 2014, including any amendments or reports filed for the purposes of updating this description.

We will furnish without charge to each person, including any beneficial owner, to whom this prospectus supplement and the accompanying prospectus is delivered, upon written or oral request, a copy of any document incorporated by reference. Requests should be addressed to 345 Park Avenue South, Third Floor, New York, New York 10010, Attn: Secretary or may be made telephonically at (646) 844-0337. Copies of these filings are filings are also available, without charge, on the SEC's website at www.sec.gov and on our website www.protaratx.com as soon as reasonably practicable after they are filed electronically with the SEC. The information contained on our website is not part of this prospectus supplement or the accompanying prospectus.

In accordance with Rule 412 of the Securities Act, any statement contained in a document incorporated by reference in this prospectus supplement or the accompanying prospectus shall be deemed modified, superseded or replaced for the purposes of this prospectus supplement or the accompanying prospectus to the extent that a statement contained in this prospectus supplement or the accompanying prospectus or in any other subsequently filed document that also is or is deemed to be incorporated by reference herein modifies or supersedes such statement.

**The information in this prospectus supplement is not complete and may be changed. We may not sell these securities until the U.S. Securities and Exchange Commission declares our registration statement effective. This prospectus supplement is not an offer to sell these securities and we are not soliciting offers to buy these securities in any state or jurisdiction where the offer or sale is not permitted.**

**SUBJECT TO COMPLETION, DATED MAY 13, 2026**

**PROSPECTUS SUPPLEMENT**

$100,000,000

![](ea028998301_img1.jpg)

**Common Stock**

We have entered into a sales agreement with TD Securities (USA) LLC, or TD Cowen, dated May 13, 2026, or the Sales Agreement, relating to the sale of shares of our common stock, par value $0.001 per share, offered by this prospectus supplement and the accompanying prospectus. In accordance with the terms of the Sales Agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to $100,000,000 through TD Cowen, acting as our agent or principal.

Our common stock is listed on The Nasdaq Global Market, or Nasdaq, under the symbol "TARA." On May 11, 2026, the last reported sale price of our common stock was $5.27 per share.

Sales of our common stock, if any, under this prospectus supplement and the accompanying prospectus may be made in sales deemed to be in negotiated transactions, including block trades or block sales, or by any method permitted by law to be deemed an "at the market offering" as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, or the Securities Act, including without limitation sales made through Nasdaq or on any other trading market for our common stock, or by any other method permitted by law. TD Cowen is not required to sell any specific amount of our common stock, but will act as our sales agent using commercially reasonable efforts consistent with its normal trading and sales practices, on mutually agreed terms between TD Cowen and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.

The compensation to TD Cowen for sales of common stock sold pursuant to the Sales Agreement will be an amount up to 3.0% of the gross proceeds of any shares of common stock sold thereunder. See "Plan of Distribution" beginning on page S-12 of this prospectus supplement for additional information regarding the compensation to be paid to TD Cowen. In connection with the sale of the common stock on our behalf, TD Cowen may be deemed to be an "underwriter" within the meaning of the Securities Act, and the compensation of TD Cowen may be deemed to be underwriting commissions or discounts. We have also agreed to provide indemnification and contribution to TD Cowen with respect to certain liabilities, including liabilities under the Securities Act or the Securities Exchange Act of 1934, as amended, or the Exchange Act.

**Investing in our common stock involves a high degree of risk. Before making an investment decision, please read the information under the heading "Risk Factors" beginning on page S-6 of this prospectus supplement and page 6 of the accompanying prospectus and under similar headings in the other documents that are incorporated by reference into this prospectus supplement as described on page S-14 of this prospectus supplement.**

**NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS SUPPLEMENT IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

**TD Cowen**

The date of this prospectus supplement is , 2026.

**TABLE OF CONTENTS**

---

| | |
|:---|:---|
|  | **Page** |
| [ABOUT THIS PROSPECTUS SUPPLEMENT](#b_001) | S-ii |
| [SUMMARY](#a_002) | S-1 |
| [RISK FACTORS](#b_003) | S-6 |
| [SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS](#a_004) | S-8 |
| [USE OF PROCEEDS](#b_005) | S-10 |
| [DILUTION](#b_006) | S-11 |
| [PLAN OF DISTRIBUTION](#b_007) | S-12 |
| [VALIDITY OF SECURITIES](#b_008) | S-13 |
| [EXPERTS](#b_009) | S-13 |
| [WHERE YOU CAN FIND ADDITIONAL INFORMATION](#b_010) | S-13 |
| [INCORPORATION OF CERTAIN INFORMATION BY REFERENCE](#b_011) | S-14 |

---

S-i

**ABOUT THIS PROSPECTUS SUPPLEMENT**

This prospectus supplement is a part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission, or SEC, utilizing a "shelf" registration process. Under this shelf registration process, we may sell any combination of the securities described in the accompanying prospectus in one or more offerings up to a total aggregate offering price of $300,000,000. The $100,000,000 of common stock that may be offered, issued and sold under this prospectus supplement is included in the amount of securities that may be offered, issued and sold by us pursuant to our shelf registration statement.

This document is in two parts. The first part is this prospectus supplement, which describes the terms of this offering of common stock and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus. The second part, the accompanying prospectus, provides more general information about our common stock. To the extent the information contained in this prospectus supplement differs or varies from the information contained in the accompanying prospectus or the documents incorporated by reference, you should rely on the information in this prospectus supplement. Any statements made in this prospectus supplement or the accompanying prospectus concerning the provisions of legal documents are not necessarily complete and you should read the documents that are filed as exhibits to the registration statement or otherwise filed with the SEC for a more complete understanding of the document or matter. Before investing in our common stock, you should carefully read both this prospectus supplement and the accompanying prospectus, together with the additional information described under "Where You Can Find More Information" and "Incorporation of Certain Information by Reference" in this prospectus supplement.

You should rely only on the information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus and in any free writing prospectus we authorize that supplements this prospectus supplement. We have not, and the underwriters have not, authorized any other person to provide you with different information or make any representations other than those contained or incorporated by reference in this prospectus supplement. If anyone other than us provides you with different or inconsistent information, you should not rely on it. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We are not, and the underwriters are not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement and the accompanying prospectus and the documents incorporated by reference is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since the date of those respective documents.

Unless otherwise stated, all references in this prospectus supplement to "we," "us," "our," "Protara," the "Company" and similar designations refer to Protara Therapeutics, Inc. This prospectus supplement, including the information incorporated by reference into this prospectus supplement, contains references to trademarks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this prospectus supplement, including logos, artwork and other visual displays, may appear without the® or™ symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies' trade names or trademarks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

S-ii

**PROSPECTUS SUPPLEMENT SUMMARY**

 

*This following summary highlights information about us, this offering and selected information contained elsewhere in or incorporated by reference into this prospectus supplement. This summary is not complete and does not contain all of the information that you need to consider in making your investment decision. You should carefully read the entire prospectus supplement, the accompanying prospectus, including the information incorporated by reference therein or herein, and any related free writing prospectus that we have authorized for use in connection with this offering, including the risks of investing in our securities discussed under the heading "Risk Factors" in this prospectus supplement on page S-6 and in the documents incorporated by reference into this prospectus supplement.* 

 

*Unless the context indicates otherwise, references in this prospectus supplement and the accompanying prospectus to "Protara," "Protara Therapeutics," "the Company," "we," "us," "our" and similar references refer to Protara Therapeutics, Inc.*

**Overview**

We are a New York City based clinical-stage biopharmaceutical company committed to advancing transformative therapies for the treatment of cancer and rare diseases. We were founded on the principle of applying modern scientific, regulatory or manufacturing advancements to established mechanisms in order to create new development opportunities. We prioritize creativity, integrity and tenacity to expedite our goal of bringing life-changing therapies to people with limited treatment options.

Our portfolio includes two development programs utilizing TARA-002, an investigational cell therapy based on the broad immunopotentiator, OK-432, which was originally granted marketing approval by the Japanese Ministry of Health and Welfare as an immunopotentiating cancer therapeutic agent. This cell therapy is currently approved in Japan and Taiwan for lymphatic malformations, or LMs, and multiple oncologic indications. We have secured worldwide rights to the asset excluding Japan and Taiwan and are exploring its use in oncology and rare disease indications. TARA-002 was developed from the same master cell bank of genetically distinct group A Streptococcus pyogenes as OK-432 (marketed as Picibanil® in Japan by Chugai Pharmaceutical Co., Ltd., or Chugai Pharmaceutical). We are currently developing TARA-002 in non-muscle invasive bladder cancer, or NMIBC, and LMs. We are also pursuing Intravenous, or IV, Choline Chloride, an investigational phospholipid substrate replacement therapy, for patients receiving parenteral support, or PS, which includes both nutrition and fluids.

We have devoted substantial efforts to the development of our programs and do not have any approved products and, to date, have not generated any revenues from product sales. Neither TARA-002 nor IV Choline Chloride have been approved by the U.S. Food and Drug Administration, or FDA, or other comparable regulatory authorities for use for any indications. We do not expect to generate revenues in the near-term, and it is possible we may never generate revenues in the future. To finance our current strategic plans, including the conduct of ongoing and future clinical trials and further research and development costs, we will need to raise additional capital.

*TARA-002 in NMIBC* 

Our lead oncology program is TARA-002 in NMIBC, which is cancer found in the tissue that lines the inner surface of the bladder that has not spread into the bladder muscle. Bladder cancer is the sixth most common cancer in the U.S., with NMIBC representing approximately 80% of bladder cancer diagnoses. Approximately 65,000 patients are diagnosed with NMIBC in the U.S. each year. Very few new therapeutics have been approved for NMIBC since the 1990s and the current standard of care for NMIBC includes intravesical Bacillus Calmette-Guérin, or BCG.

Following the completion of our Phase 1a ADVANCED-1 and Phase 1b ADVANCED-1EXP trials in October 2024 and September 2024, respectively, to evaluate safety, preliminary efficacy and the dosing of TARA-002, at the 40KE (Klinische Einheit, or KE, is a German term indicating a specified weight of dried cells in vial) dose level, we initiated and are currently conducting our ADVANCED-2 clinical trial. ADVANCED-2 is a Phase 2 open-label clinical trial evaluating intravesical TARA-002 in patients with high-grade carcinoma in situ, or CIS. Cohort A of the Phase 2 trial has completed enrollment and enrolled 31 patients with CIS (± Ta/T1, with Ta defined as non-invasive papillary carcinoma and T1 defined as carcinoma invading the lamina propria) who are either BCG-Naïve or BCG-Exposed and who have not received intravesical BCG for at least 24 months prior to CIS diagnosis. Cohort B of the Phase 2 trial is expected to enroll 75 to 100 patients with BCG-Unresponsive CIS (± Ta/T1) and is designed to be registrational based on the FDA's August 2024 Draft Guidance for Industry on BCG-Unresponsive Nonmuscle Invasive Bladder Cancer: Developing Drugs and Biological Products for Treatment. Trial subjects in ADVANCED-2 receive an induction course, with or without a reinduction, of six weekly intravesical instillations of TARA-002, followed by a maintenance course of three weekly instillations every three months.

In February 2026, we presented updated interim data from our ongoing Phase 2 open-label ADVANCED-2 trial reporting results that continue to support TARA-002's potential as a new therapy in the NMIBC treatment landscape and demonstrating meaningful and durable activity in BCG-Unresponsive and BCG-Naïve NMIBC patients.

The dataset includes 43 BCG-Unresponsive patients and 31 BCG-Naïve patients who received at least one dose of TARA-002; 35 BCG-Unresponsive patients and 29 BCG-Naïve patients completed at least one response assessment and were evaluable for efficacy as of a January 28, 2026 data cutoff. Complete response, or CR, rates at the six months and 12 months landmark time points include all participants who were either evaluable at that time point or had experienced disease progression or treatment failure prior to the scheduled visit.

For the BCG-Unresponsive cohort, the CR rate at any time was 65.7% (23/35). The CR rate was 68.2% (15/22) at six months and 33.3% (5/15) at 12 months. Among responders, the Kaplan-Meier, or KM, estimated probability of maintaining a CR for six months was 71.1% (95% confidence interval, or CI: 46.7, 95.5), and 100% (5/5) maintained their CR from nine to 12 months. Re-induction therapy successfully converted 61.5% (8/13) non-responders to a CR at six months.

For the BCG-Naïve cohort, the CR rate at any time was 72.4% (21/29). The CR rate was 66.7% (18/27) at six months and 57.9% (11/19) at 12 months. Among responders, the KM estimated probability of maintaining a CR for six months was 73.1% (95% CI: 52.9, 93.4), and 100% (11/11) maintained their CR from nine to 12 months. Re-induction therapy successfully converted 66.7% (4/6) non-responders to a CR at six months.

The majority of treatment-related adverse events, or TRAEs, were Grade 1 and transient with no Grade 3 or greater TRAEs and no related serious adverse events, or SAEs, as assessed by study investigators. No patients discontinued treatment due to TRAEs. The most commonly occurring TRAEs were dysuria (14%), bladder spasm (9%), fatigue (7%) and micturition urgency (5%).

In March 2026, we announced that we have received confirmation on the six-month CR rate of the 25th BCG-Unresponsive patient in our ongoing Phase 2 open-label ADVANCED-2 trial of TARA-002 in patients with CIS (± Ta/T1) NMIBC. The average six-month CR rate in the 25 BCG-Unresponsive patients is 68.0%, which is consistent with the 68.2% CR rate at six months that was announced by us in February 2026, and is meaningfully above 41.9%.

We expect to complete enrollment of the BCG-Unresponsive registrational cohort of the ADVANCED-2 trial in the second half of 2026. Enrollment is complete in the BCG-Naïve cohort of the ADVANCED-2 trial with 31 patients. We are planning a proposed registrational trial in BCG-Naïve and potentially BCG-Exposed patients. The FDA has agreed that BCG is not required as a comparator and that intravesical chemotherapy is an acceptable comparator to TARA-002 in BCG-Naïve patients. We are continuing to engage with the FDA on aspects of the analysis plan, and we intend to initiate the ADVANCED-3 trial in the second half of 2026.

In addition to our existing clinical trials in NMIBC, we plan to continue to explore the anti-tumor activity related to the administration of TARA-002 via systemic administration. We continue to believe that combination therapy may play a meaningful role in the NMIBC treatment paradigm and intend to evaluate TARA-002 in combination with other therapies. Given what we have observed to date of TARA-002's mechanism of action and safety profile, we believe it has strong potential as a combination agent, and we continue to evaluate potential combination therapy options for our clinical program. We also continue to conduct non-clinical studies on TARA-002 to better characterize the mechanism of action to help us understand how TARA-002 may perform in potential combinations with other agents used to treat NMIBC, and to help us define other cancer targets for TARA-002, both within urothelial cancer and other types of cancer affecting different parts of the body.

*IV Choline Chloride for Patients on PS*

We are also pursuing IV Choline Chloride, an investigational phospholipid substrate replacement therapy, for patients receiving PS which includes both nutrition and fluids. Choline is a known important substrate for phospholipids that are critical for healthy liver function and also plays an important role in modulating gene expression, cell membrane signaling, brain development, neurotransmission, muscle function and bone health. PS patients are unable to synthesize choline from enteral nutrition sources, and there are currently no available PS formulations containing choline. Every year in the U.S. there are approximately 90,000 people who require PS at home and of those approximately 30,000 are on long-term PS. IV Choline Chloride has the potential to become the first FDA-approved IV choline formulation for PS patients.

An IV formulation of choline is recommended for patients on parenteral nutrition, or PN, by the American Society for Parenteral and Enteral Nutrition, or ASPEN, in their Recommendations for Changes in Commercially Available Parenteral Multivitamin and Multi–Trace Element Products, as well as by the European Society for Clinical Nutrition and Metabolism, or ESPEN, in their Guideline on Home Parenteral Nutrition. IV Choline Chloride has been granted Orphan Drug Designation, or ODD, by the FDA for the prevention and/or treatment of choline deficiency in patients on long-term PN. The FDA has also granted IV Choline Chloride Fast Track Designation, or FTD, as a source of choline when oral or enteral nutrition is not possible, insufficient, or contraindicated. The U.S. Patent and Trademark Office, or USPTO, has issued us a U.S. patent claiming a choline composition and a U.S. patent claiming a method of treating choline deficiency with a choline composition, each with a term expiring in 2041.

In April 2024, we announced alignment with the FDA on a registrational path forward for IV Choline Chloride. Previously, we had been pursuing an indication in intestinal failure-associated liver disease, or IFALD, and following feedback from the FDA, are pursuing a broader indication as a source of choline when oral or enteral nutrition is not possible, insufficient, or contraindicated. Feedback from the FDA on our IV Choline Chloride program indicated that a single study with an endpoint of restoring choline levels in PS patients could serve as the basis for a regulatory submission for IV Choline Chloride.

In September 2024, we presented the results of THRIVE-1, a prospective, observational study evaluating the prevalence of choline deficiency and liver injury in patients dependent on PS in the U.S., U.K. and Europe. The study found that 78% of patients who are dependent on PS were choline deficient, and that 63% of choline deficient participants had liver dysfunction, including steatosis, cholestasis and hepatobiliary injury, underscoring the need for IV Choline supplementation in this patient population.

In January 2026, we advanced the development of IV Choline Chloride as a source of choline for adult and adolescent patients on long-term PS and initiated THRIVE-3, a registrational Phase 3 clinical trial. THRIVE-3 is a seamless Phase 2b/3 trial with a dose confirmation portion (n=24) followed by a double-blinded, randomized, placebo-controlled portion to assess the efficacy and safety of IV Choline Chloride over 24 weeks in adolescents and adults on long-term PS when oral or enteral nutrition is not possible, insufficient, or contraindicated (n=100). The primary endpoint of the clinical trial is a pharmacokinetic, or PK, endpoint measuring the change from baseline in plasma choline concentration. We also plan to include a number of secondary endpoints related to liver, bone and memory. We anticipate reporting interim results from the dose-confirmation portion of the trial in the second half of 2026.

*TARA-002 in LMs* 

We are also pursuing TARA-002 in macrocystic and mixed-cystic LMs, which are rare, non-malignant cysts of the lymphatic vascular system that primarily form in the head and neck region of children before the age of two. In addition to the clinical experience in Japan, we have secured the rights to a dataset from one of the largest ever conducted Phase 2 trials in LMs, in which OK-432 was administered via a compassionate use program led by the University of Iowa to over 500 pediatric and adult patients. In July 2020, the FDA granted Rare Pediatric Disease Designation, or RPDD, for TARA-002 for the treatment of LMs and in May 2022 the European Commission granted Orphan Medicinal Product Designation to TARA-002 for the treatment of LMs. In December 2025, the FDA granted both FDA Breakthrough Therapy Designation, or BTD, and FTD for TARA-002 for the treatment of macrocystic and mixed cystic LMs in pediatric patients. In April 2026, the FDA granted ODD to TARA-002 for the treatment of macrocystic LMs and mixed cystic LMs. We have an open investigational new drug application, or IND, for TARA-002 in LMs and the review of TARA-002 has been moved from the Office of Vaccines Research and Review to the Office of Therapeutic Products, or OTP, which has significant experience in pediatric rare disease and is the review division for TARA-002 in NMIBC.

In October 2023, we initiated STARBORN-1, which is a Phase 2 single-arm, open-label, prospective clinical trial to evaluate the safety and efficacy of intracystic injection of TARA-002 for the treatment of macrocystic and mixed-cystic LMs (≥ 50% macrocystic disease) in participants six months to less than 18 years of age in the U.S. Including an age de-escalation safety lead-in, the clinical trial will enroll approximately 30 patients who will receive up to four injections of TARA-002 spaced approximately six weeks apart. The primary endpoint of the clinical trial is the proportion of participants with macrocystic LMs and mixed-cystic LMs who demonstrated clinical success, defined as having either a CR (90% to 100% reduction from baseline in total LM volume) or substantial response (60% to less than 90% reduction in total LM volume) as measured by axial imaging.

In November 2025, we announced interim results from our ongoing Phase 2 STARBORN-1 trial evaluating TARA-002 in pediatric patients with macrocystic and mixed cystic LMs. As of the data cutoff date of November 12, 2025, 12 patients had received at least one dose of TARA-002. Of the eight patients who were evaluable at the eight-week post-treatment assessment, 100% achieved clinical success. 88% of patients achieved clinical success with just one or two doses of TARA-002. Among macrocystic patients, 83% (5/6) achieved a CR, and the only mixed cystic patient treated also achieved a CR. Two patients who reached the 32-week post-treatment assessment remain disease-free.

The safety profile of TARA-002 in this trial has been favorable, with the majority of adverse events, or AEs, being mild to moderate in severity. No SAEs were reported. The most common AEs were swelling and fatigue, and only one patient discontinued treatment due to a Grade 2 AE of fatigue.

These results underscore the potential of TARA-002 to address an unmet need for pediatric patients with LMs, for whom there are currently no approved therapies. Many patients currently rely on invasive surgical procedures or off-label use of chemotherapies and chemicals, which can be associated with high complication rates and challenging side effects, particularly in pediatric populations.

Based on engagement with the FDA, we intend to submit a Biologics License Application for TARA-002 in LMs based on the results of the pivotal STARBORN-1 trial in the second half of 2027 and will continue to submit safety and efficacy data from the trial on an ongoing basis to support the FDA's evaluation of the risks and benefits of TARA-002 in LMs.

*Other Potential Opportunities*

We believe TARA-002 may also have the potential to be used to treat other maxillofacial cysts based on the historical literature from the TARA-002 predecessor, OK-432, as well as recent data from the STARBORN-1 trial in which the one pediatric patient with a ranula achieved a CR after a single 1KE injection of TARA-002. While completing STARBORN-1 in LMs is our priority, we believe there may be an opportunity in the future to explore the potential of TARA-002 to treat different types of maxillofacial cysts.

**Implications of Being a Smaller Reporting Company**

As a "smaller reporting company," as defined in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), in addition to providing reduced disclosure about our executive compensation arrangements and business developments, among other reduced disclosure requirements available to smaller reporting companies, we present only two years of audited financial statements in addition to any required unaudited interim financial statements with correspondingly reduced "Management's Discussion and Analysis of Financial Condition and Results of Operations" disclosure.

We have taken advantage of reduced reporting requirements in this prospectus supplement and in the documents incorporated by reference herein. Accordingly, the information contained herein and therein may be different from the information you receive from other public companies in which you hold stock.

**Corporate Information**

We were originally incorporated in Delaware in March 2006, and at that time, acquired Proteon Therapeutics, LLC, the predecessor of Protara, which was formed in June 2001. On January 9, 2020, Protara Therapeutics, Inc. (formerly ArTara Therapeutics, Inc., formerly Proteon Therapeutics, Inc., or the Company or Protara), and privately-held ArTara Subsidiary, Inc., or Private ArTara, completed the merger and reorganization, or the Merger, in accordance with the terms of the Agreement and Plan of Merger and Reorganization, dated September 23, 2019, or the Merger Agreement, by and among the Company, Private ArTara and REM 1 Acquisition, Inc., a wholly owned subsidiary of the Company, or Merger Sub, whereby Merger Sub merged with and into Private ArTara, with Private ArTara surviving as a wholly owned subsidiary of the Company. The Merger was structured as a reverse merger and Private ArTara was determined to be the accounting acquirer based on the terms of the Merger and other factors. Our principal executive offices are located at 345 Park Avenue South, Third Floor, New York, New York 10010, our telephone number is (646) 844-0337 and our website address is www.protaratx.com. The information contained in or accessible through our website does not constitute part of this prospectus supplement.

**The Offering**

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| | |
|:---|:---|
| Common stock offered by us | Shares of our common stock having an aggregate offering price of up to $100,000,000. |
| Common stock to be outstanding after this offering | Up to 74,249,440 shares, assuming sales of 19,193,858 shares of our common stock in this offering at an assumed offering price of $5.21 per share, which was the closing price of our common stock on Nasdaq on March 31, 2026. The actual number of shares issued will vary depending on the sales price under this offering. |
| Plan of Distribution | "At-the-market" offering that may be made from time to time through our sales agent, TD Cowen. See "Plan of Distribution." |
| Use of Proceeds | We intend to use the net proceeds from this offering to fund the clinical development of TARA-002, IV Choline Chloride, as well as the development of other potential clinical programs. We may also use the net proceeds from this offering for working capital and other general corporate purposes. For a more complete description of our intended use of proceeds from this offering, see "Use of Proceeds." |
| Risk Factors | You should read the "Risk Factors" section of this prospectus supplement and in the documents incorporated by reference in this prospectus supplement for a discussion of factors to consider before deciding to purchase shares of our common stock. |
| Nasdaq symbol | "TARA" |

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The number of shares of common stock to be outstanding after this offering is based upon 55,055,582 shares outstanding as of March 31, 2026, and excludes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· 3,400,272 shares of our common stock that are
issuable upon the exercise of pre-funded warrants outstanding, at an exercise price of $0.001 per share;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· 9,748,380 shares of common stock issuable upon
the exercise of common warrants outstanding, at an exercise price of $5.25 per share;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· 4,645,769 shares of our common stock issuable
upon the conversion of 4,644 shares of our Series 1 Preferred Stock outstanding; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· 9,999,930 shares of common stock reserved for
issuance under our 2014 Equity Incentive Plan, 2017 Equity Incentive Plan, 2020 Inducement Plan, 2024 Equity Incentive Plan and 2024 Employee
Stock Purchase Plan; which includes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o 1,107,238 shares of common stock issuable upon the settlement of restricted stock units outstanding; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o 7,597,051 shares of common stock issuable upon the exercise of stock options outstanding, at a weighted
average exercise price of $5.98 per share.

Unless otherwise indicated, all information in this prospectus supplement assumes no exercise of the outstanding pre-funded warrants, common warrants, Series 1 Preferred Stock, options or settlement of the outstanding restricted stock units described above.

**RISK FACTORS**

 

*Investing in our securities involves a high degree of risk. You should carefully review the risks and uncertainties described under the heading "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2025, as updated by our annual, quarterly and other reports and documents that are incorporated by reference into this prospectus supplement, before deciding whether to purchase any of the securities being registered pursuant to the registration statement of which this prospectus supplement is a part. Each of the risk factors could adversely affect our business, results of operations, financial condition and cash flows, as well as adversely affect the value of an investment in our securities, and the occurrence of any of these risks might cause you to lose all or part of your investment. Additional risks not presently known to us or that we currently believe are immaterial may also significantly impair our business operations.*

**Risks Related to This Offering**

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***The price of our common stock has been and may continue to be volatile and fluctuate substantially, and you may lose all or part of their investment.***

Our stock price has been volatile and may continue to be subject to wide fluctuations in response to various factors. The stock market in general and the market for biotechnology and biopharmaceutical companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies, including in connection with conflicts in various regions of the world, increasing inflation rates, and interest rate changes, which have resulted in decreased stock prices for many companies notwithstanding the lack of a fundamental change in their underlying business models or prospects. As a result of this volatility, you may lose all or part of your investment.

Market and industry factors may cause the market price and demand for shares of our common stock to fluctuate substantially, regardless of our actual operating performance, which may limit or prevent investors from selling their shares at or above the price paid for the shares of common stock or pre-funded warrants, as applicable, and may otherwise negatively affect the liquidity of our common stock. The realization of any of the above risks or any of a broad range of other risks, including those described in this section, could have a significant and material adverse impact on the market price of our common stock. The price of our common stock may be disproportionately affected as investors may favor traditional profit-making industries and companies during the times of market uncertainty and instability.

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***If you purchase our securities in this offering, you would suffer immediate and substantial dilution of your investment.***

If you purchase securities in this offering, you will incur immediate and substantial dilution. The offering price will be substantially higher than the as adjusted net tangible book value per share of our common stock after this offering. To the extent outstanding common warrants or pre-funded warrants are exercised, or preferred stock is converted, new stock options are issued or we issue additional shares of common stock in the future, including through the sale of equity or convertible debt securities, there will be further dilution to new investors. This dilution would be due to the substantially lower price paid by some of our investors who purchased shares prior to this offering as compared to the price offered to the public in this offering. In addition, we have a significant number of pre-funded warrants and common warrants outstanding. The exercise of any of these outstanding pre-funded warrants or common warrants would result in further dilution. As a result of the dilution to investors purchasing shares in this offering, investors may receive significantly less than the purchase price paid in this offering, if anything, in the event of our liquidation. For a further description of the dilution that you will experience immediately after this offering, see the section titled "Dilution."

***Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans, could result in additional dilution of the percentage ownership of our stockholders and could cause our stock price to fall.***

Additional capital will be needed in the future to continue our planned operations. To the extent we issue additional equity securities to raise capital or pursuant to our equity incentive plans or other contractual obligations, our stockholders may experience substantial dilution. We may sell common stock, convertible securities or other equity securities in one or more transactions at prices and in a manner we determine from time to time. If we sell or issue common stock, convertible securities or other equity securities in more than one transaction, investors may be materially diluted by subsequent sales. These sales may also result in material dilution to our existing stockholders, and new investors could gain rights superior to our existing stockholders. In addition, sales of a substantial number of shares of our outstanding common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares of common stock intend to sell shares, could reduce the market price of our common stock. Sales by our stockholders of a substantial number of shares or distributions of their holdings to their respective limited partners and other equity holders, or the expectation that such sales or distributions, or the expectation that such sales may occur, could significantly reduce the market price of our common stock.

Further, because we expect we will need to raise additional capital to fund our future activities, we may in the future sell substantial amounts of common stock or securities convertible into or exchangeable for common stock. Future issuances of common stock or common stock-related securities, together with the exercise of outstanding stock options or warrants, the vesting and settlement of outstanding restricted stock units, and new equity awards granted under our equity incentive plans, if any, may result in further dilution.

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***We have broad discretion in the use of our existing cash, cash equivalents and marketable securities and the net proceeds from this offering and may not use them effectively.***

Our management will have broad discretion in the application of our existing cash, cash equivalents and marketable securities and the net proceeds from this offering, including for any of the purposes described in the section entitled "Use of Proceeds," and you will not have the opportunity as part of your investment decision to assess whether such proceeds are being used appropriately. Because of the number and variability of factors that will determine our use of our existing cash, cash equivalents and marketable debt securities and the net proceeds from this offering, their ultimate use may vary substantially from their currently intended use. Our management might not apply our existing cash, cash equivalents and marketable securities and the net proceeds from this offering in ways that ultimately increase the value of your investment. The failure by our management to apply these funds effectively could harm our business, cause the price of our common stock to decline and delay the development of our product candidates. If we do not apply the net proceeds from this offering in ways that enhance stockholder value, we may fail to achieve expected financial results, which could cause our stock price to decline.

***The actual number of shares we will issue in this offering, at any one time or in total, is uncertain.***

Subject to certain limitations in the Sales Agreement and compliance with applicable law, we have the discretion to deliver a placement notice to TD Cowen at any time throughout the term of the Sales Agreement. The number of shares that are sold by TD Cowen in this offering after delivering a placement notice will fluctuate based on the market price of the shares of common stock during the sales period and limits we set with TD Cowen. Because the price per share of each share sold will fluctuate based on the market price of our common stock during the sales period, it is not possible at this stage to predict the number of shares that will be ultimately issued.

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***The common stock offered hereby will be sold in "at-the-market" offerings and investors who buy shares at different times will likely pay different prices.***

Investors who purchase shares in this offering at different times will likely pay different prices, and accordingly may experience different levels of dilution and different outcomes in their investment results. We will have discretion, subject to market demand, to vary the timing, prices and number of shares sold in this offering. In addition, subject to the final determination by our board of directors or any restrictions we may place in any applicable placement notice, there is no minimum or maximum sales price for shares to be sold in this offering. Investors may experience a decline in the value of the shares they purchase in this offering as a result of sales made at prices lower than the prices they paid.

**SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS**

This prospectus supplement and the accompanying prospectus, including the information incorporated herein by reference, contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and are subject to the safe harbor created thereby under the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect our current views with respect to, among other things, our operations and financial performance. All statements other than statements of historical facts contained in this prospectus supplement or the accompanying prospectus are forward-looking statements. You can generally identify these forward-looking statements by terminology such as "believes," "expects," "potential," "continues," "may," "will," "should," "seek," "approximately," "predict," "intend," "plans," "estimates," "anticipates" or the negative version of these terms or other comparable terminology. Forward-looking statements inherently involve many risks and uncertainties that could cause actual results to differ from those expressed in forward-looking statements. Forward-looking statements are based on management's current plans and expectations, expressed in good faith and believed to have a reasonable basis. However, we can give no assurance that any expectation or belief will result or will be achieved or accomplished. Investors therefore should not place undue reliance on forward-looking statements.

These forward-looking statements include, but are not limited to, statements about:

● estimates regarding our financial performance, including future revenue, expenses and capital requirements;

● our expected cash position and ability to obtain financing in the future on satisfactory terms or at all;

● expectations regarding our plans to research, develop and commercialize our current and future product candidates, including TARA-002, and IV Choline Chloride;

● expectations regarding the safety and efficacy of our product candidates;

● expectations regarding the timing, costs and outcomes of our clinical trials;

● expectations regarding potential market size;

● expectations regarding the timing of the availability of data from our clinical trials;

● expectations regarding the clinical utility, potential benefits and market acceptance of our product candidates;

● expectations regarding our commercialization, marketing and manufacturing capabilities and strategy;

● the implementation of our business model, strategic plans for our business, product candidates and technology;

● expectations regarding our ability to identify additional products or product candidates with significant commercial potential;

● developments and projections relating to our competitors and industry;

● our ability to acquire, license and invest in businesses, technologies, product candidates and products;

● our ability to remain listed on Nasdaq;

● the impact of and changes or developments in government laws and regulations, including any executive orders or tariffs

● costs and outcomes relating to any disputes, governmental inquiries or investigations, regulatory proceedings, legal proceedings or litigation;

● our ability to attract and retain key personnel to manage our business effectively;

● our ability to prevent system failures, data breaches or violations of data protection laws;

● the timing or likelihood of regulatory filings and approvals;

● our ability to protect our intellectual property position; and

● the impact of general U.S., foreign and global economic, industry, market, trade, regulatory, political or public health conditions.

You should refer to the "Risk Factors" section of this prospectus supplement, as well as the "Risk Factors" section contained in the accompanying prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus supplement, for a discussion of important factors that may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. Given these risks, uncertainties and other factors, many of which are beyond our control, we cannot assure you that the forward-looking statements in this prospectus supplement will prove to be accurate, and you should not place undue reliance on these forward-looking statements. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame, or at all.

Except as required by law, we assume no obligation to update these forward-looking statements publicly, or to revise any forward-looking statements to reflect events or developments occurring after the date of this prospectus supplement, even if new information becomes available in the future.

This prospectus supplement, the accompanying prospectus, and the documents incorporated by reference herein also contains estimates, projections and other information concerning our industry, our business, and the markets for certain medical conditions, including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry, medical and general publications, government data and similar sources.

**USE OF PROCEEDS**

We may issue and sell shares of our common stock having aggregate sales proceeds of up to $100,000,000 from time to time. Because we are not required to sell any shares of our common stock under the Sales Agreement, and any shares that may be sold pursuant to the Sales Agreement will be sold in "at-the-market" offerings at fluctuating prices, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. There can be no assurance that we will sell any shares in this offering as a source of financing.

We intend to use the net proceeds from this offering to fund the clinical development of TARA-002, IV Choline Chloride, as well as the development of other potential clinical programs. We may also use the net proceeds from this offering for working capital and other general corporate purposes.

The amounts and timing of our actual expenditures will depend on numerous factors, including the time and cost necessary to conduct our planned clinical trials, the results of our planned clinical trials and other factors described in the section titled "Risk Factors" in this prospectus supplement and the accompanying prospectus, the documents incorporated by reference herein, as well as the amount of cash used in our operations and any unforeseen cash needs. Therefore, our actual expenditures may differ materially from the estimates described above. We may find it necessary or advisable to use the net proceeds for other purposes, and we will have broad discretion in the application of the net proceeds.

We intend to invest the net proceeds from the offering that are not used as described above primarily in short-term, investment-grade, interest-bearing instruments.

**DILUTION**

If you invest in our common stock in this offering, your ownership interest will be diluted immediately to the extent of the difference between the public offering price per share of common stock and the as adjusted net tangible book value per share of common stock immediately after this offering.

Our historical net tangible book value as of March 31, 2026 was $181.2 million, or $3.29 per share of common stock. Our historical net tangible book value is the amount of our total tangible assets less our total liabilities. Historical net tangible book value per share represents historical net tangible book value divided by the 55,055,582 shares of common stock outstanding as of March 31, 2026.

After giving effect to the sale of $100,000,000 of shares of common stock in this offering at an assumed offering price of $5.21 per share (the last reported sale price of our common stock on Nasdaq on March 31, 2026), and after deducting sales agent commissions and estimated expenses payable by us, our as adjusted net tangible book value as of March 31, 2026, would have been approximately $277.8 million, or $3.74 per share of common stock. This represents an immediate increase in net tangible book value of $0.45 per share to our existing stockholders and an immediate dilution in net tangible book value of $1.47 per share to new investors participating in this offering. The following table illustrates this dilution per share to investors participating in this offering:

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| | | |
|:---|:---|:---|
| Assumed offering price per share |  | $5.21 |
| &nbsp;&nbsp;&nbsp;Net tangible book value per share as of March 31, 2026 | $3.29 |  |
| &nbsp;&nbsp;&nbsp;Increase in net tangible book value per share attributable to new investors in offering | $0.45 |  |
| As adjusted net tangible book value per share after giving effect to the offering |  | $3.74 |
| Dilution per share to new investors |  | $1.47 |

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The table above assumes for illustrative purposes that an aggregate of 19,193,858 shares of our common stock are sold in this offering at an assumed offering price of $5.21 per share, for aggregate gross proceeds of $100,000,000. The shares subject to the Sales Agreement with TD Cowen and offered by this prospectus supplement are being sold from time to time at various prices. An increase of $1.00 per share in the price at which the shares are sold from the assumed offering price of $5.21 per share shown in the table above, assuming all of our common stock in the aggregate amount of $100,000,000 in this offering is sold at that price, would increase our adjusted net tangible book value per share after the offering to $3.90 per share and would increase the dilution in net tangible book value per share to new investors in this offering to $2.31 per share, after deducting sales agent commissions and estimated aggregate offering expenses payable by us. A decrease of $1.00 per share in the price at which the shares are sold from the assumed offering price of $5.21 per share shown in the table above, assuming all of our common stock in the aggregate amount of $100,000,000 is sold in this offering at that price, would decrease our adjusted net tangible book value per share after the offering to $3.53 per share and would decrease the dilution in net tangible book value per share to new investors in this offering to $0.68 per share, after deducting sales agent commissions and estimated aggregate offering expenses payable by us. This information is supplied for illustrative purposes only.

To the extent that our outstanding pre-funded warrants, common warrants, Series 1 Preferred Stock or options have been exercised or our outstanding restricted stock units have been or may settle or other shares issued, investors purchasing our common stock in this offering may experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.

**PLAN OF DISTRIBUTION**

We have entered into the Sales Agreement with TD Cowen, under which we may issue and sell from time to time up to $100,000,000 of our common stock through or to TD Cowen as our sales agent or principal. Sales of our common stock, if any, will be made in negotiated transactions, including block trades or block sales, or by any method permitted by law deemed to be an "at the market offering" as defined in Rule 415 under the Securities Act, including without limitation sales made through Nasdaq or on any other existing trading market for our common stock, or by any other method permitted by law. Sales pursuant to the Sales Agreement may be made through an affiliate of TD Cowen.

TD Cowen will offer our common stock subject to the terms and conditions of the Sales Agreement on a daily basis or as otherwise agreed upon by us and TD Cowen. We will designate the maximum amount of common stock to be sold through TD Cowen on a daily basis or otherwise determine such maximum amount together with TD Cowen. Subject to the terms and conditions of the Sales Agreement, TD Cowen will use its commercially reasonable efforts to sell on our behalf all of the shares of common stock requested to be sold by us. We may instruct TD Cowen not to sell common stock if the sales cannot be effected at or above the price designated by us in any such instruction. TD Cowen or we may suspend the offering of our common stock being made through TD Cowen under the Sales Agreement upon proper notice to the other party. TD Cowen and we each have the right, by giving written notice as specified in the Sales Agreement, to terminate the Sales Agreement in each party's sole discretion at any time.

The aggregate compensation payable to TD Cowen as sales agent equals up to 3.0% of the gross sales price of the shares sold through it pursuant to the Sales Agreement. We have also agreed to reimburse TD Cowen up to $100,000 of TD Cowen's actual outside legal expenses incurred by TD Cowen in connection with the execution of the Sales Agreement, in addition to certain ongoing disbursements of its legal counsel. We estimate that the total expenses of the offering payable by us, excluding commissions payable to TD Cowen under the Sales Agreement, will be approximately $400,000.

The remaining sales proceeds, after deducting any expenses payable by us and any transaction fees imposed by any governmental, regulatory, or self-regulatory organization in connection with the sales, will equal our net proceeds for the sale of such common stock.

TD Cowen will provide written confirmation to us following the close of trading on Nasdaq on each day in which common stock is sold through it as sales agent under the Sales Agreement. Each confirmation will include the number of shares of common stock sold through it as sales agent on that day, the volume weighted average price of the shares sold, the percentage of the daily trading volume and the net proceeds to us.

We will report at least quarterly the number of shares of common stock sold through TD Cowen under the Sales Agreement and the net proceeds to us in connection with the sales of common stock.

Settlement for sales of common stock will occur, unless the parties agree otherwise, on the first business day that is also a trading day following the date on which any sales were made in return for payment of the net proceeds to us. There is no arrangement for funds to be received in an escrow, trust or similar arrangement.

In connection with the sales of our common stock on our behalf, TD Cowen may be deemed to be an "underwriter" within the meaning of the Securities Act, and the compensation paid to TD Cowen may be deemed to be underwriting commissions or discounts. We have agreed in the Sales Agreement to provide indemnification and contribution to TD Cowen against certain liabilities, including liabilities under the Securities Act. As sales agent, TD Cowen will not engage in any transactions that stabilizes our common stock.

Our common stock is listed on Nasdaq and trades under the symbol "TARA." The transfer agent and registrar for our common stock is Computershare Trust Company, N.A.

TD Cowen and/or its affiliates have provided, and may in the future provide, various investment banking, commercial banking and other financial services for us and our affiliates for which they have received, and may in the future receive, customary fees. TD Cowen and certain of its affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. In the ordinary course of their various business activities, TD Cowen and certain its affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers, and such investment and securities activities may involve securities and/or instruments of the issuer or its affiliates. TD Cowen and certain of its affiliates may also communicate independent investment recommendations, market color or trading ideas and/or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

**VALIDITY OF SECURITIES**

The validity of the common stock offered by this prospectus supplement will be passed upon by Kirkland & Ellis LLP. TD Cowen is being represented in connection with this offering by Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C., Boston, Massachusetts.

**EXPERTS**

The consolidated financial statements of Protara Therapeutics, Inc. appearing in Protara Therapeutic, Inc.'s Annual Report (Form 10-K) for the year ended December 31, 2025, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report thereon included therein, and incorporated herein by reference. Such financial statements are, and audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the report of Ernst & Young LLP pertaining to such financial statements (to the extent covered by consents filed with the Securities and Exchange Commission) given on the authority of such firm as experts in accounting and auditing.

**WHERE YOU CAN FIND MORE INFORMATION**

This prospectus supplement is part of the registration statement on Form S-3 we filed with the SEC under the Securities Act. This prospectus supplement does not contain all of the information set forth in the registration statement and the exhibits to the registration statement. For further information with respect to us and the securities we are offering under this prospectus supplement, we refer you to the registration statement and the exhibits and schedules filed as a part of the registration statement. You should rely only on the information contained in this prospectus supplement or incorporated by reference. We have not authorized anyone else to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this prospectus supplement is accurate as of any date other than the date on the front page of this prospectus supplement, regardless of the time of delivery of this prospectus supplement or any sale of the securities offered by this prospectus supplement.

We must comply with the informational requirements of the Exchange Act, and we are required to file reports and proxy statements and other information with the SEC. You may read and copy these reports, proxy statements and other information on the SEC's website at http://www.sec.gov, which contains reports, proxy and information statements and other information regarding issuers like us that file electronically with the SEC. We maintain a website at www.protaratx.com. The information contained in, or that can be accessed through, our website is not incorporated by reference herein and is not part of this prospectus supplement.

Statements contained in this prospectus supplement as to the contents of any contract or other document are not necessarily complete, and in each instance we refer you to the copy of the contract or document filed as an exhibit to the registration statement, each such statement being qualified in all respects by such reference.

**INCORPORATION OF CERTAIN INFORMATION BY REFERENCE**

The SEC allows us to "incorporate by reference" information that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus supplement. Information in this prospectus supplement supersedes information incorporated by reference that we filed with the SEC prior to the date of this prospectus supplement, while information that we file later with the SEC will automatically update and supersede the information in this prospectus supplement. We also incorporate by reference into this prospectus supplement the documents listed below and any future filings made by us with the SEC (other than current reports or portions thereof furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on such form that are related to such items and other portions of documents that are furnished, but not filed, pursuant to applicable rules promulgated by the SEC) that are filed by us with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) on or after the date of the initial filing of the registration statement of which this prospectus supplement is a part and prior to effectiveness of the registration statement, and (ii) on or after the effectiveness of the registration statement but prior to the termination of the offering of the securities covered by this prospectus supplement:

● our Annual Report on [Form 10-K](http://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026025433/ea0277639-10k_protara.htm) for the fiscal year ended December 31, 2025, filed with the SEC on March 10, 2026 (including those portions of our [Proxy Statement](http://www.sec.gov/ix?doc=/Archives/edgar/data/1359931/000121390026048536/ea0286228-04.htm) for our 2026 Annual Meeting of Stockholders filed with the SEC on April 28, 2026 that are deemed to be incorporated by reference therein);

● our Quarterly Report on [Form 10-Q](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026055463/ea0287944-10q_protara.htm) for the quarter ended March 31, 2026 filed with the SEC on May 13, 2026;

● our Current Report on [Form 8-K](http://www.sec.gov/ix?doc=/Archives/edgar/data/0001359931/000121390026019617/ea0277972-8k_protara.htm) filed on February 24, 2026 (only with respect to the items "filed" and not "furnished"); and

● the description of our common stock contained in our registration statement on [Form 8-A](http://www.sec.gov/Archives/edgar/data/1359931/000110465914072025/a14-15225_88a12b.htm) filed with the SEC on October 16, 2014, including any amendments or reports filed for the purposes of updating this description.

We will furnish without charge to each person, including any beneficial owner, to whom this prospectus supplement and the accompanying prospectus is delivered, upon written or oral request, a copy of any document incorporated by reference. Requests should be addressed to 345 Park Avenue South, Third Floor, New York, New York 10010, Attn: Secretary or may be made telephonically at (646) 844-0337. Copies of these filings are also available, without charge, on the SEC's website at www.sec.gov and on our website www.protaratx.com as soon as reasonably practicable after they are filed electronically with the SEC. The information contained on our website is not part of this prospectus supplement or the accompanying prospectus.

In accordance with Rule 412 of the Securities Act, any statement contained in a document incorporated by reference in this prospectus supplement or the accompanying prospectus shall be deemed modified, superseded or replaced for the purposes of this prospectus supplement or the accompanying prospectus to the extent that a statement contained in this prospectus supplement or the accompanying prospectus or in any other subsequently filed document that also is or is deemed to be incorporated by reference herein modifies or supersedes such statement.

![](ea028998301_img1.jpg)

**$100,000,000**

**Common Stock**

**PROSPECTUS SUPPLEMENT**

**TD Cowen**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**, 2026**

**PART II**

**INFORMATION NOT REQUIRED IN THE PROSPECTUS**

**Item 14. Other Expenses of Issuance and Distribution**

The following table sets forth the estimated costs and expenses, other than underwriting discounts and commissions, payable by us in connection with the offering of the securities being registered. All the amounts shown are estimates, except for the SEC registration fee.

---

| | |
|:---|:---|
| SEC registration fee | $24180.45 |
| FINRA filing fee | \* |
| Accounting fees and expenses | \* |
| Legal fees and expenses | \* |
| Transfer agent fees and expenses | \* |
| Trustee fees and expenses | \* |
| Printing and miscellaneous expenses | \* |
| Total | $\* |

---

\* These fees are calculated based on the securities offered and the number of issuances and, accordingly, cannot be estimated at this time.

**Item 15. Indemnification of Officers and Directors**

The registrant's certificate of incorporation and bylaws provide for indemnification of the registrant's directors and officers to the fullest extent permitted by law. Insofar as indemnification for liabilities under the Securities Act of 1933, as amended, or the Securities Act, may be permitted to directors, officers or controlling persons of the registrant pursuant to the registrant's certificate of incorporation, bylaws and the Delaware General Corporation Law, or DGCL, the registrant has been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

Section 102(b)(7) of the DGCL provides that a certificate of incorporation may include a provision that eliminates or limits the personal liability of a director to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (i) for any breach of the director's duty of loyalty to the Company or its stockholders, (ii) for acts or omissions not in good faith or that involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of the DGCL, relating to prohibited dividends or distributions or the repurchase or redemption of stock or (iv) for any transaction from which the director derives an improper personal benefit. The registrant's certificate of incorporation includes such a provision. As a result of this provision, the registrant and its stockholders may be unable to obtain monetary damages from a director for breach of his or her duty of care.

As permitted under the DGCL, the registrant has entered into indemnification agreements with each of its directors and executive officers that require the registrant to indemnify such persons against any and all expenses (including attorneys', witness or other professional fees), and unless in connection with a proceeding by or in the right of the registrant, any and all judgments, fines and amounts paid in settlement, actually and reasonably incurred by such persons or on such persons' behalf in connection with any proceeding, whether actual or threatened, to which any such person may be involved as a party or otherwise by reason of the fact that such person is or was a director or an executive officer of the registrant or is or was serving at the request of the registrant as a director, officer, employee, agent or fiduciary of another enterprise, provided such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the registrant and, with respect to any criminal proceeding, had no reasonable cause to believe such person's conduct was unlawful. Under these agreements, the registrant is not required to provide indemnification for certain matters, including:

● indemnification beyond that permitted by applicable law;

● except as provided in the indemnification agreements, an accounting of profits made from the purchase and sale (or sale and purchase) by such director or executive officer of securities of the registrant within the meaning of Section 16(b) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or similar provisions of state statutory law or common law;

● except as provided in the indemnification agreements, any reimbursement of the registrant by such director or executive officer of any bonus or other incentive-based or equity-based compensation or of any profits realized by such director or executive officer from the sale of securities of the registrant, as required in each case under the Exchange Act; or

● except as provided in the indemnification agreements, in connection with any proceeding initiated by such director or executive officer, unless (i) the registrant's board of directors authorized the proceeding prior to its initiation or (ii) the registrant provides the indemnification, in its sole discretion, pursuant to the powers vested in the registrant under applicable law.

The indemnification agreements also set forth certain procedures, presumptions and remedies that will apply in the event of a claim for indemnification thereunder.

Any underwriting agreement that we may enter into may provide for indemnification by any underwriters, of us, our directors, our officers who sign the registration statement and our controlling persons for some liabilities, including liabilities arising under the Securities Act.

**Item 16. Exhibits and Financial Statement Schedules**

(a) Exhibits.

---

| | |
|:---|:---|
| **Exhibit Number** | <br> **Description of Document** |
| 1.1\* | Form of Underwriting Agreement. |
| 1.2 | [Sales Agreement, dated as of May 13, 2026, by and between Protara Therapeutics, Inc. and TD Securities (USA), LLC.](ea028998301ex1-2.htm) |
| 3.1 | [Sixth Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on October 27, 2014).](http://www.sec.gov/Archives/edgar/data/1359931/000110465914074038/a14-15225_12ex3d1.htm) |
| 3.2 | [Certificate of Amendment to the Sixth Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on January 10, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000110465920003115/tm201618d1_ex3-1.htm) |
| 3.3 | [Second Certificate of Amendment to the Sixth Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.3 to the Registrant's Quarterly Report on Form 10-Q, filed with the SEC on May 13, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000121390020011893/f10q0320ex3-3_artara.htm) |
| 3.4 | [Composite Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.6 to the Registrant's Annual Report on Form 10-K, filed with the SEC on March 8, 2023)](http://www.sec.gov/Archives/edgar/data/1359931/000121390023018373/f10k2022ex3-6_protarathera.htm). |
| 3.5 | [Second Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 to the Registrant's Current Report on Form 8-K, filed with the SEC on August 3, 2017).](http://www.sec.gov/Archives/edgar/data/1359931/000117184317004634/exh_32.htm) |
| 3.6 | [Certificate of Designation of Preferences, Rights and Limitations of Series 1 Convertible Non-Voting Preferred Stock (incorporated by reference to Exhibit 3.2 to the Registrant's Current Report on Form 8-K, filed with the SEC on January 10, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000110465920003115/tm201618d1_ex3-2.htm) |
| 3.7 | [Certificate of Amendment to the Certificate of Designation of Preferences, Rights and Limitations of Series 1 Convertible Non-Voting Preferred Stock (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on September 23, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000121390020027951/ea127215ex3-1_protara.htm) |
| 4.1 | Reference is made to Exhibits [3.1](http://www.sec.gov/Archives/edgar/data/1359931/000110465914074038/a14-15225_12ex3d1.htm), [3.2](http://www.sec.gov/Archives/edgar/data/1359931/000110465920003115/tm201618d1_ex3-1.htm), [3.3](http://www.sec.gov/Archives/edgar/data/1359931/000121390020011893/f10q0320ex3-3_artara.htm), [3.4](http://www.sec.gov/Archives/edgar/data/1359931/000121390023018373/f10k2022ex3-6_protarathera.htm), [3.5](http://www.sec.gov/Archives/edgar/data/1359931/000117184317004634/exh_32.htm), [3.6](http://www.sec.gov/Archives/edgar/data/1359931/000110465920003115/tm201618d1_ex3-2.htm) and [3.7](http://www.sec.gov/Archives/edgar/data/1359931/000121390020027951/ea127215ex3-1_protara.htm). |
| 4.2 | [Form of Common Stock Certificate (incorporated by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on January 10, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000110465920003115/tm201618d1_ex4-1.htm) |
| 4.3 | [Registration Rights Agreement, dated as of September 23, 2019, by and among the Registrant and the institutional investors named therein (incorporated by reference to Exhibit 10.5 to the Registrant's Current Report on Form 8-K, filed with the SEC on September 24, 2019).](http://www.sec.gov/Archives/edgar/data/1359931/000104746919005409/a2239754zex-10_5.htm) |

---

---

| | |
|:---|:---|
| 4.4\* | Specimen Preferred Stock Certificate and Form of Certificate of Designation of Preferred Stock. |
| 4.5 | [Form of Indenture, between the Company and one or more trustees to be named (incorporated by reference to Exhibit 4.7 to the Registrant's Registration Statement on Form S-3 filed with the SEC on May 14, 2020)](http://www.sec.gov/Archives/edgar/data/1359931/000121390020012347/ea121805ex4-7_protara.htm). |
| 4.6\* | Form of Debt Securities. |
| 4.7 | [Form of Common Stock Warrant Agreement and Warrant Certificate (incorporated by reference to Exhibit 4.9 to the Registrant's Registration Statement on Form S-3 filed with the SEC on May 14, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000121390020012347/ea121805ex4-9_protara.htm) |
| 4.8 | [Form of Preferred Stock Warrant Agreement and Warrant Certificate (incorporated by reference to Exhibit 4.10 to the Registrant's Registration Statement on Form S-3 filed with the SEC on May 14, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000121390020012347/ea121805ex4-10_protara.htm) |
| 4.9 | [Form of Debt Securities Warrant Agreement and Warrant Certificate (incorporated by reference to Exhibit 4.11 to the Registrant's Registration Statement on Form S-3 filed with the SEC on May 14, 2020).](http://www.sec.gov/Archives/edgar/data/1359931/000121390020012347/ea121805ex4-11_protara.htm) |
| 5.1 | [Opinion of Kirkland & Ellis LLP.](ea028998301ex5-1.htm) |
| 10.1 | [Subscription Agreement, dated September 23, 2019, by and among the Registrant and the institutional investors named therein (incorporated by reference to Exhibit 10.4 to the Registrant's Current Report on Form 8-K, filed with the SEC on September 24, 2019).](http://www.sec.gov/Archives/edgar/data/1359931/000104746919005409/a2239754zex-10_4.htm) |
| 10.2 | [First Amendment to Subscription Agreement, dated November 19, 2019, by and among the Registrant and the institutional investors named therein (incorporated by reference to Exhibit 99.12 to the Registrant's Registration Statement on Form S-4 (File No. 333-234549)).](http://www.sec.gov/Archives/edgar/data/1359931/000104746919006649/a2240114zex-99_12.htm) |
| 10.3 | [Second Amendment to Subscription Agreement, dated December 17, 2025, by and among the Registrant and the institutional investors named therein (incorporated by reference to Exhibit 10.4 to the Registrant's Annual Report on Form 10-K, filed with the SEC on March 10, 2026).](http://www.sec.gov/Archives/edgar/data/1359931/000121390026025433/ea027763901ex10-4_protara.htm) |
| 23.1 | [Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.](ea028998301ex23-1.htm) |
| 23.2 | [Consent of Kirkland & Ellis LLP (included in Exhibit 5.1).](ea028998301ex5-1.htm) |
| 24.1 | [Power of Attorney (included on signature page).](#POW) |
| 25.1\*\* | Statement of Eligibility of Trustee under the Indenture. |
| 107 | [Calculation of Filing Fee Table.](ea028998301ex-fee.htm) |

---

\* To be filed, if applicable, by amendment or by a report filed under the Exchange Act and incorporated herein by reference.

\*\* To be filed, if applicable, in accordance with the requirements of Section 305(b)(2) of the Trust Indenture Act of 1939 and Rule 5b-3 thereunder.

**Item 17. Undertakings**

The undersigned registrant hereby undertakes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

*provided, however*, that paragraphs (1)(i), (1)(ii) and (1)(iii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this registration statement or are contained in a form of prospectus filed pursuant to Rule 424(b) that is part of this registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial *bona fide* offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial *bona fide* offering thereof. *Provided*, *however*, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial *bona fide* offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) To file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the Commission under Section 305(b)(2) of the Trust Indenture Act.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on May 13, 2026.

---

| | |
|:---|:---|
| PROTARA THERAPEUTICS, INC. | PROTARA THERAPEUTICS, INC. |
| By | /s/ Jesse Shefferman |
|  | Jesse Shefferman<br> President and Chief Executive Officer |

---

**POWER OF ATTORNEY**

KNOW ALL BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Jesse Shefferman, Patrick Fabbio and Mary J. Grendell, and each of them, as his or her true and lawful attorney-in-fact and agent, with the full power of substitution and resubstitution, for him or her and in his or her name, place or stead, in any and all capacities, to sign any and all amendments to this Registration Statement (including post-effective amendments), and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement on Form S-3 has been signed by the following persons in the capacities and on the dates indicated.

---

| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| <br> /s/ Jesse Shefferman | President and Chief Executive Officer and Director | May 13, 2026 |
| Jesse Shefferman | *(Principal Executive Officer)* |  |
| /s/ Patrick Fabbio | Chief Financial Officer | May 13, 2026 |
| Patrick Fabbio | *(Principal Financial Officer)* |  |
| /s/ Hannah Fry | Vice President, Controller | May 13, 2026 |
| Hannah Fry | *(Principal Accounting Officer)* |  |
| /s/ Luke Beshar | Chairman of the Board of Directors | May 13, 2026 |
| Luke Beshar |  |  |
| /s/ Barry Flannelly | Director | May 13, 2026 |
| Barry Flannelly, Pharm.D. |  |  |
| /s/ Roger Garceau | Director | May 13, 2026 |
| Roger Garceau |  |  |
| /s/ Jane Huang | Director | May 13, 2026 |
| Jane Huang, M.D. |  |  |
| /s/ Richard Levy | Director | May 13, 2026 |
| Richard Levy, M.D. |  |  |
| /s/ Gregory P. Sargen | Director | May 13, 2026 |
| Gregory P. Sargen |  |  |
| /s/ Cynthia Smith | Director | May 13, 2026 |
| Cynthia Smith |  |  |
| /s/ Michael Solomon | Director | May 13, 2026 |
| Michael Solomon, Ph.D. |  |  |

---

## Exhibit 1.2

**Exhibit 1.2**

**Protara Therapeutics, Inc.**

**$100,000,000**

**<u>Common Stock</u>**

**<u>SALES AGREEMENT</u>**

May 13, 2026

TD Securities (USA) LLC

1 Vanderbilt Avenue

New York, New York 10017

Ladies and Gentlemen:

Protara Therapeutics, Inc., a Delaware corporation (the "**<u>Company</u>**"), confirms its agreement (this "**<u>Agreement</u>**") with TD Securities (USA) LLC ("**<u>TD Cowen</u>**"), as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. <u>Issuance and Sale of Shares</u>. The Company agrees that, from time to time during the term of this Agreement, on the terms and subject to the conditions set forth herein, it may issue and sell through TD Cowen, acting as agent and/or principal, shares (the "**<u>Placement Shares</u>**") of the Company's common stock, par value $0.001 per share (the "**<u>Common Stock</u>**"), having an aggregate offering price of up to $100,000,000 (the "**<u>Maximum Amount</u>**"). Notwithstanding anything to the contrary contained herein, the parties hereto agree that compliance with the limitation set forth in this <u>Section 1</u> on the number of shares of Common Stock issued and sold under this Agreement shall be the sole responsibility of the Company, and TD Cowen shall have no obligation in connection with such compliance. The issuance and sale of Common Stock through TD Cowen will be effected pursuant to the Registration Statement (as defined below) filed by the Company, after such Registration Statement has been declared effective by the Securities and Exchange Commission (the "**<u>Commission</u>**"), although nothing in this Agreement shall be construed as requiring the Company to use the Registration Statement (as defined below) to issue the Placement Shares. The Company acknowledges and agrees that sales of Placement Shares under this Agreement may be made through affiliates of TD Cowen, and that TD Cowen may otherwise fulfill its obligations pursuant to this Agreement to or through an affiliated broker-dealer.

The Company shall file, in accordance with the provisions of the Securities Act of 1933, as amended, and the rules and regulations thereunder (collectively, the "**<u>Securities Act</u>**"), with the Commission a registration statement on Form S-3, including a base prospectus, relating to certain securities, including the Common Stock, to be issued from time to time by the Company, and which incorporates by reference documents that the Company has filed or will file in accordance with the provisions of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder (collectively, the "**<u>Exchange Act</u>**"). The Company has prepared a prospectus supplement to the base prospectus specifically relating to the Placement Shares (the "**<u>ATM Prospectus</u>**") included as part of such registration statement, and shall, if necessary, prepare further prospectus supplements to the base prospectus included as part of such registration statement, specifically relating to the Placement Shares (each such prospectus supplement, a "**<u>Prospectus Supplement</u>**"). The Company shall furnish to TD Cowen, for use by TD Cowen, copies of the prospectus included as part of such registration statement, as supplemented by the ATM Prospectus and the Prospectus Supplement, if any, relating to the Placement Shares. Except where the context otherwise requires, such registration statement, and any post-effective amendment thereto, as amended when it becomes effective, including all documents filed as part thereof or incorporated by reference therein, and including any information contained in a Prospectus (as defined below) subsequently filed with the Commission pursuant to Rule 424(b) under the Securities Act or deemed to be a part of such registration statement pursuant to Rule 430B or 462(b) of the Securities Act, or any subsequent registration statement on Form S-3 filed pursuant to Rule 415(a)(6) under the Securities Act by the Company to cover any Placement Shares, is herein called the "**<u>Registration Statement.</u>**" Any registration statement and amendments thereto filed pursuant to Rule 462(b) of the Securities Act and relating to the offering covered by the Registration Statement is herein called a "**<u>Rule 462(b) Registration Statement</u>**" and, after such filing, the "Registration Statement" shall include any Rule 462(b) Registration Statement. The base prospectus, including all documents incorporated therein by reference, included in the Registration Statement, as it may be supplemented by the ATM Prospectus and a Prospectus Supplement, if any, in the form in which such prospectus, ATM Prospectus and/or Prospectus Supplement have most recently been filed by the Company with the Commission pursuant to Rule 424(b) under the Securities Act, together with any "issuer free writing prospectus," as defined in Rule 433 under the Securities Act ("**<u>Rule 433</u>**<u>"**)**</u>, relating to the Placement Shares that (i) is consented to by TD Cowen, hereinafter referred to as a "**<u>Permitted Free Writing Prospectus</u>**," (ii) is required to be filed with the Commission by the Company or (iii) is exempt from filing pursuant to Rule 433(d)(5)(i), in each case in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company's records pursuant to Rule 433(g), is herein called the "**<u>Prospectus</u>**." Any reference herein to the Registration Statement, the Prospectus or any amendment or supplement thereto shall be deemed to refer to and include the documents incorporated by reference therein, and any reference herein to the terms "amend," "amendment" or "supplement" with respect to the Registration Statement or the Prospectus shall be deemed to refer to and include the filing after the execution hereof of any document with the Commission deemed to be incorporated by reference therein. For purposes of this Agreement, all references to the Registration Statement, the Prospectus or to any amendment or supplement thereto shall be deemed to include any copy filed with the Commission pursuant to the Electronic Data Gathering Analysis and Retrieval System ("**<u>EDGAR</u>**"). The Company's obligations under this Agreement to furnish, provide, deliver or make available (and all other similar references) copies of any document shall be deemed satisfied if the same is filed with the Commission through EDGAR.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. <u>Placements</u>. Each time that the Company wishes to issue and sell the Placement Shares hereunder (each, a "**<u>Placement</u>**"), it will notify TD Cowen by email notice (or other method mutually agreed to in writing by the parties) (a "**<u>Placement Notice</u>**") containing the parameters in accordance with which it desires the Placement Shares to be sold, which shall at a minimum include the number of Placement Shares to be issued, the time period during which sales are requested to be made, any limitation on the number of Placement Shares that may be sold in any one Trading Day (as defined in <u>Section 3</u>) and any minimum price below which sales may not be made, a form of which containing such minimum sales parameters necessary is attached hereto as **<u>Schedule 1</u>**. The Placement Notice shall originate from any of the individuals from the Company set forth on **<u>Schedule 2</u>** (with a copy to each of the other individuals from the Company listed on such schedule), and shall be addressed to each of the individuals from TD Cowen set forth on **<u>Schedule 2</u>**, as such **<u>Schedule 2</u>** may be amended from time to time. The Placement Notice shall be effective upon receipt by TD Cowen unless and until (i) in accordance with the notice requirements set forth in <u>Section 4</u>, TD Cowen declines to accept the terms contained therein for any reason, in its sole discretion, (ii) the entire amount of the Placement Shares have been sold, (iii) in accordance with the notice requirements set forth in <u>Section 4</u>, the Company suspends or terminates the Placement Notice, which it may do for any reason, in its sole discretion, (iv) the Company issues a subsequent Placement Notice with parameters superseding or amending those on the earlier dated Placement Notice, which it may do for any reason, in its sole discretion, or (v) this Agreement has been terminated under the provisions of <u>Section 11</u>. The amount of any discount, commission or other compensation to be paid by the Company to TD Cowen in connection with the sale of the Placement Shares shall be calculated in accordance with the terms set forth in **<u>Schedule 3</u>.** It is expressly acknowledged and agreed that neither the Company nor TD Cowen will have any obligation whatsoever with respect to a Placement or any Placement Shares unless and until the Company delivers a Placement Notice to TD Cowen and TD Cowen does not decline such Placement Notice pursuant to the terms set forth above, and then only upon the terms specified therein and herein. In the event of a conflict between the terms of this Agreement and the terms of a Placement Notice, the terms of the Placement Notice will control.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. <u>Sale of Placement Shares by TD Cowen.</u> Subject to the terms and conditions herein set forth, upon the Company's delivery of a Placement Notice, and unless the sale of the Placement Shares described therein has been declined, suspended, or otherwise terminated in accordance with the terms of this Agreement, TD Cowen, for the period specified in the Placement Notice, will use its commercially reasonable efforts consistent with its normal trading and sales practices and applicable state and federal laws, rules and regulations and the rules of The Nasdaq Global Market ("**<u>Nasdaq</u>**") to sell such Placement Shares up to the amount specified, and otherwise in accordance with the terms of such Placement Notice. TD Cowen will provide written confirmation to the Company (including by email correspondence to each of the individuals of the Company set forth on **<u>Schedule 2</u>**, if receipt of such correspondence is actually acknowledged by any of the individuals to whom the notice is sent, other than via auto-reply) no later than the opening of the Trading Day (as defined below) immediately following the Trading Day on which it has made sales of Placement Shares hereunder setting forth the number of Placement Shares sold on such day, the volume-weighted average price of the Placement Shares sold, and the Net Proceeds (as defined below) payable to the Company. In the event the Company engages TD Cowen for a sale of Placement Shares that would constitute a "block" within the meaning of Rule 10b-18(a)(5) under the Exchange Act (a "**<u>Block Sale</u>**"), the Company will provide TD Cowen, at TD Cowen's request and upon reasonable advance notice to the Company, on or prior to the Settlement Date (as defined below), the opinions of counsel, accountant's letter and officers' certificates set forth in <u>Section 8</u> hereof, each dated the Settlement Date, and such other documents and information as TD Cowen shall reasonably request. TD Cowen may sell Placement Shares in negotiated transactions, including block trades or Block Sales, or by any method permitted by law deemed to be an "at the market" offering as defined in Rule 415 of the Securities Act, including without limitation sales made through Nasdaq or on any other existing trading market for the Common Stock, or by any other method permitted by law. TD Cowen shall not purchase Placement Shares for its own account as principal unless expressly authorized to do so by the Company in a Placement Notice. The Company acknowledges and agrees that (i) there can be no assurance that TD Cowen will be successful in selling Placement Shares, and (ii) TD Cowen will incur no liability or obligation to the Company or any other person or entity if it does not sell Placement Shares for any reason other than a failure by TD Cowen to use its commercially reasonable efforts consistent with its normal trading and sales practices to sell such Placement Shares as required under this <u>Section 3</u>. For the purposes hereof, "**<u>Trading Day</u>**" means any day on which the Company's Common Stock is purchased and sold on the principal market on which the Common Stock is listed or quoted.

Notwithstanding any other provision of this Agreement, the Company shall not offer, sell or deliver, or request the offer or sale, of any Placement Shares pursuant to this Agreement and, by notice to TD Cowen given by telephone (confirmed promptly by email), shall cancel any instructions for the offer or sale of any Placement Shares, and TD Cowen shall not be obligated to offer or sell any Placement Shares, (i) during any period in which the Company is, or could be deemed to be, in possession of material non-public information, or (ii) at any time from and including the date on which the Company shall issue a press release containing, or shall otherwise publicly announce, its earnings, revenues or other results of operations (an "**<u>Earnings Announcement</u>**") through and including the time that the Company files a Quarterly Report on Form 10-Q or an Annual Report on Form 10-K that includes consolidated financial statements as of and for the same period or periods, as the case may be, covered by such Earnings Announcement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. <u>Suspension of Sales</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The Company or TD Cowen may, upon notice to the other party in writing (including by email correspondence to each of the individuals of the other party set forth on **<u>Schedule 2</u>**, if receipt of such correspondence is actually acknowledged by any of the individuals to whom the notice is sent, other than via auto-reply) or by telephone (confirmed immediately by verifiable facsimile transmission or email correspondence to each of the individuals of the other party set forth on **<u>Schedule 2</u>**), suspend any sale of Placement Shares; *provided, however*, that such suspension shall not affect or impair either party's obligations with respect to any Placement Shares sold hereunder prior to the receipt of such notice. While a suspension is in effect, any obligation under Section 7(m), 7(n) and 7(o) with respect to the delivery of certificates, opinions, or comfort letters to TD Cowen, shall be waived; provided that such certificates, opinions or comfort letter shall be delivered to TD Cowen prior to the resumption of sales of any Placement Shares. Each of the parties agrees that no such notice under this <u>Section 4</u> shall be effective against the other unless it is made to one of the individuals named on **<u>Schedule 2</u>** hereto, as such schedule may be amended from time to time.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) If either TD Cowen or the Company has reason to believe that the exemptive provisions set forth in Rule 101(c)(1) of Regulation M under the Exchange Act are not satisfied with respect to the Common Stock, it shall promptly notify the other party, and TD Cowen or the Company may, at its sole discretion, suspend sales of the Placement Shares under this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Notwithstanding any other provision of this Agreement, following the initial effectiveness of the Registration Statement, during any period in which the Registration Statement is no longer effective under the Securities Act, the Company shall promptly notify TD Cowen, the Company shall not request the sale of any Placement Shares, and TD Cowen shall not be obligated to sell or offer to sell any Placement Shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. <u>Settlement.</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Settlement of Placement Shares</u>. Unless otherwise specified in the applicable Placement Notice, settlement for sales of Placement Shares will occur on the first (1<sup>st</sup>) Trading Day following the date on which such sales are made (each, a "**<u>Settlement Date</u>**" and the first such settlement date, the "**<u>First Delivery Date</u>**"). The amount of proceeds to be delivered to the Company on a Settlement Date against receipt of the Placement Shares sold (the "**<u>Net Proceeds</u>**") will be equal to the aggregate sales price received by TD Cowen at which such Placement Shares were sold, after deduction for (i) TD Cowen's commission, discount or other compensation for such sales payable by the Company pursuant to <u>Section 2</u> hereof, (ii) any other amounts due and payable by the Company to TD Cowen hereunder pursuant to <u>Section 7(g)</u> (Expenses) hereof, and (iii) any transaction fees imposed by any governmental or self-regulatory organization in respect of such sales.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>Delivery of Placement Shares</u>. On or before each Settlement Date, the Company will, or will cause its transfer agent to, electronically transfer the Placement Shares being sold by crediting TD Cowen's or its designee's account (provided TD Cowen shall have given the Company written notice of such designee prior to the Settlement Date) at The Depository Trust Company through its Deposit and Withdrawal at Custodian System or by such other means of delivery as may be mutually agreed upon by the parties hereto which in all cases shall be freely tradeable, transferable, registered shares in good deliverable form. On each Settlement Date, TD Cowen will deliver the related Net Proceeds in same day funds to an account designated by the Company on, or prior to, the Settlement Date. The Company agrees that if the Company, or its transfer agent (if applicable), defaults in its obligation to deliver duly authorized Placement Shares on a Settlement Date, the Company agrees that in addition to and in no way limiting the rights and obligations set forth in <u>Section 9(a)</u> (Indemnification and Contribution) hereto, it will (i) hold TD Cowen harmless against any loss, claim, damage, or reasonable and documented expense (including reasonable and documented legal fees and expenses), as incurred, arising out of or in connection with such default by the Company and (ii) pay to TD Cowen any commission, discount, or other compensation to which it would otherwise have been entitled absent such default.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. <u>Representations and Warranties of the Company</u>. The Company represents and warrants to, and agrees with, TD Cowen that, unless such representation, warranty or agreement specifies a different time, as of (i) the date of this Agreement, (ii) each Time of Sale (as defined below), (iii) each Settlement Date, and (iv) each Bring-Down Date (as defined below) (each date included in (i) through (iv), a "**<u>Representation Date</u>**"):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Compliance with Registration Requirements</u>. Prior to the issuance of any Placement Notice by the Company, the Registration Statement and any Rule 462(b) Registration Statement will have been declared effective by the Commission under the Securities Act. The Company has complied, or will comply, to the Commission's satisfaction with all requests of the Commission for additional or supplemental information related to the Registration Statement, ATM Prospectus or Prospectus Supplement, as applicable. No stop order suspending the effectiveness of the Registration Statement or any Rule 462(b) Registration Statement is in effect and no proceedings for such purpose have been instituted or are pending or, to the best knowledge of the Company, contemplated or threatened by the Commission. The Company meets the requirements for use of Form S-3 under the Securities Act. The sale of the Placement Shares hereunder meets the requirements of General Instruction I.B.1 of Form S-3.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>No Misstatement or Omission</u>. The Prospectus, when filed, will comply and, as amended or supplemented, if applicable, will comply in all material respects with the Securities Act. Each of the Registration Statement, any Rule 462(b) Registration Statement, the Prospectus and any post-effective amendments or supplements thereto, at the time it became effective or its date, as applicable, will comply and as of each Representation Date, will comply in all material respects with the Securities Act and, as of each Representation Date, will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading. The Prospectus, as amended or supplemented, as of its date and, as of each Representation Date, will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The representations and warranties set forth in the two immediately preceding sentences do not apply to statements in or omissions from the Registration Statement, any Rule 462(b) Registration Statement, or any post-effective amendment thereto, or the Prospectus, or any amendments or supplements thereto, made in reliance upon and in conformity with information relating to Agent's Information (as defined below). There are no contracts or other documents required to be described in the Prospectus or to be filed as exhibits to the Registration Statement which have not been described or filed as required. As used herein, "**<u>Time of Sale</u>**" means with respect to each offering of Placement Shares pursuant to this Agreement, the time of TD Cowen's initial entry into contracts with purchasers for the sale of such Placement Shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>Offering Materials Furnished to TD Cowen</u>. The Company has delivered to TD Cowen one complete copy of the Registration Statement and a copy of each consent and certificate of experts filed as a part thereof, and conformed copies of the Registration Statement (without exhibits) and the Prospectus, as amended or supplemented, in such quantities and at such places as TD Cowen has reasonably requested. The Registration Statement, the Prospectus and any Permitted Free Writing Prospectus (to the extent any such Permitted Free Writing Prospectus was required to be filed with the Commission) delivered to TD Cowen for use in connection with the public offering of the Placement Shares contemplated herein have been and will be identical to the versions of such documents transmitted to the Commission for filing via EDGAR, except to the extent permitted by Regulation S-T.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) <u>Not an Ineligible Issuer</u>. At the time of filing of the Registration Statement and as of the date hereof, the Company was not, and currently is not, an "ineligible issuer," as defined in Rule 405 under the Securities Act. The Company agrees to notify TD Cowen promptly upon the Company becoming an "ineligible issuer."

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) <u>Distribution of Offering Material By the Company</u>. The Company has not distributed and will not distribute, prior to the completion of TD Cowen's distribution of the Placement Shares, any offering material in connection with the offering and sale of the Placement Shares other than the Prospectus, Registration Statement or a Permitted Free Writing Prospectus.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) <u>The Sales Agreement</u>. This Agreement has been duly authorized, executed and delivered by, and is a valid and binding agreement of, the Company, enforceable in accordance with its terms, except as rights to indemnification hereunder may be limited by applicable law and except as the enforcement hereof may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to or affecting the rights and remedies of creditors or by general equitable principles.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g) <u>Authorization of the Common Stock</u>. The Placement Shares, when issued and delivered, will be duly authorized for issuance and sale pursuant to this Agreement and, when issued and delivered by the Company against payment therefor pursuant to this Agreement, will be duly authorized, validly issued, fully paid and nonassessable, free and clear of any pledge, lien, encumbrance, security interest or other claim, and the issuance and sale of the Placement Shares by the Company is not subject to preemptive or other similar rights arising by operation of law, under the organizational documents of the Company or under any agreement to which the Company or any Subsidiary (as defined below) is a party or otherwise.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h) <u>No Applicable Registration or Other Similar Rights</u>. There are no persons with registration or other similar rights to have any equity or debt securities registered for sale under the Registration Statement or included in the offering contemplated by this Agreement, except for such rights as have been or will be duly waived at the Time of Sale.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) <u>No Material Adverse Change</u>. Except as otherwise disclosed in the Prospectus, subsequent to the respective dates as of which information is given in the Prospectus: (i) there has been no material adverse change, or any development that could reasonably be expected to result in a material adverse change, in the financial condition or in the earnings, business, operations or prospects taken as a whole, whether or not arising from transactions in the ordinary course of business, of the Company and its Subsidiaries (as defined below), considered as one entity (any such change is called a "**<u>Material Adverse Change</u>**"); (ii) the Company and its Subsidiaries, considered as one entity, have not incurred any material liability or obligation, indirect, direct or contingent, not in the ordinary course of business nor entered into any material transaction or agreement not in the ordinary course of business: and (iii) there has been no dividend or distribution of any kind declared, paid or made by the Company or, except for regular quarterly dividends publicly announced by the Company or dividends paid to the Company or other Subsidiaries, by any of its Subsidiaries on any class of capital stock or repurchase or redemption by the Company or any of its Subsidiaries of any class of capital stock.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(j) <u>Independent Accountants</u>. Ernst & Young LLP, who has certified certain financial statements of the Company and its Subsidiaries included or incorporated by reference in the Registration Statement and the Prospectus, is an independent registered public accounting firm with respect to the Company and its Subsidiaries within the meaning of Article 2-01 of Regulation S-X and the Public Company Accounting Oversight Board (United States) (the "**<u>PCAOB</u>**").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(k) <u>Preparation of the Financial Statements</u>. The financial statements, together with the related notes, included or incorporated by reference in the Prospectus and in the Registration Statement fairly present the financial position and the results of operations and changes in financial position of the Company and its consolidated Subsidiaries at the respective dates or for the respective periods therein specified. Such statements and related notes and schedules have been prepared in accordance with the generally accepted accounting principles in the United States (in effect as of the applicable date or period of time, "**<u>GAAP</u>**") applied on a consistent basis throughout the periods involved except as may be set forth in the related notes included or incorporated by reference in the Prospectus. The financial statements, together with the related notes, included or incorporated by reference in the Prospectus comply in all material respects with Regulation S-X. No other financial statements or supporting schedules or exhibits are required by Regulation S-X to be described, included or incorporated by reference in the Registration Statement or the Prospectus.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(l) <u>XBRL</u>. The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement fairly presents in all material respects the information called for and has been prepared in accordance with the Commission's rules and guidelines applicable thereto in all material respects.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(m) <u>Incorporation and Good Standing of the Company and its Subsidiaries</u>. The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation and has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and to enter into and perform its obligations under this Agreement and to consummate the transactions contemplated herein and therein. Each subsidiary of the Company (each a "**<u>Subsidiary</u>**") has been duly organized and is validly existing as a corporation or limited liability company in good standing under the laws of the jurisdiction of its organization and has the requisite power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus, except with respect to the Company's Subsidiaries where the failure to be in good standing would not result in a Material Adverse Change. Each of the Company and its Subsidiaries is duly qualified as a foreign corporation or foreign partnership to transact business and is in good standing under the laws of the jurisdiction of its incorporation or formation and each other jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except for such jurisdictions where the failure to so qualify or to be in good standing would not, individually or in the aggregate, result in a Material Adverse Change. Except as described in the Prospectus, all of the issued and outstanding equity interests of the Subsidiaries have been duly authorized and validly issued, are fully paid and nonassessable and are owned by the Company free and clear of any security interest, mortgage, pledge, lien, encumbrance or claim. The Company does not own or control, directly or indirectly, any corporation, association or other entity other than the Subsidiaries listed in Exhibit 21.1 to the Company's Annual Report on Form 10-K for the most recently ended fiscal year and other than (i) those Subsidiaries not required to be listed on Exhibit 21.1 by Item 601 of Regulation S-K under the Exchange Act and (ii) those Subsidiaries formed since the last day of the most recently ended fiscal year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(n) <u>Capital Stock Matters</u>. All of the issued shares of capital stock of the Company have been duly and validly authorized and issued, are fully paid and non-assessable, have been issued in compliance with federal and state securities laws, and conform to the description thereof contained in the Prospectus. All of the Company's options, warrants and other rights to purchase or exchange any securities for shares of the Company's capital stock have been duly authorized and validly issued and were issued in compliance with federal and state securities laws. None of the outstanding shares of Common Stock were issued in violation of any preemptive rights, rights of first refusal or other similar rights to subscribe for or purchase securities of the Company that were not timely waived. As of the date of the Prospectus, there were no authorized or outstanding shares of capital stock, options, warrants, preemptive rights, rights of first refusal or other rights to purchase, or equity or debt securities convertible into or exchangeable or exercisable for, any capital stock of the Company or any of its Subsidiaries other than those described above or accurately described in the Prospectus. Since the date of the Prospectus, the Company has not issued any securities, other than Common Stock issued pursuant to the exercise of warrants or issued pursuant to securities convertible into or exchangeable for Common Stock or upon the exercise of stock options or other awards outstanding under the Company's stock option plans, options or other securities granted or issued pursuant to the Company's existing equity compensation plans or other plans, and the issuance of Common Stock pursuant to employee stock purchase plans. The description of the Company's stock option, stock bonus and other stock plans or arrangements, and the options or other rights granted thereunder, as described in the Prospectus, accurately and fairly present the information required to be shown with respect to such plans, arrangements, options and rights in all material respects. All the outstanding shares of capital stock (if any) of each Subsidiary of the Company have been duly authorized and validly issued, are fully paid and nonassessable and, except to the extent set forth in the Prospectus, are owned by the Company directly or indirectly through one or more wholly-owned Subsidiaries, free and clear of any claim, lien, encumbrance, security interest, restriction upon voting or transfer or any other claim of any third party.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(o) <u>No Conflicts</u>. The execution, delivery and performance of this Agreement by the Company, the issue and sale of the Placement Shares by the Company and the consummation of the transactions contemplated hereby will not (with or without notice or lapse of time or both) (i) conflict with or result in a breach or violation of any of the terms or provisions of, constitute a default or a Debt Repayment Triggering Event (as defined below) under, or result in the creation or imposition of any lien, encumbrance, security interest, claim or charge upon any property or assets of the Company or any Subsidiary pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound or to which any of the property or assets of the Company or any of its Subsidiaries is subject, (ii) result in any violation of the provisions of the charter or by-laws (or analogous governing instruments, as applicable) of the Company or any of its Subsidiaries or (iii) result in the violation of any law, statute, rule, regulation, judgment, order or decree of any court or governmental or regulatory agency or body, domestic or foreign, having jurisdiction over the Company or any of its Subsidiaries or any of their properties or assets except, in the case of clauses (i) and (iii) above, for any such conflict, breach, violation or default that would not reasonably be expected to, individually or in the aggregate, result in a Material Adverse Change. A "**<u>Debt Repayment Triggering Event</u>**" means any event or condition that gives, or with the giving of notice or lapse of time would give the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder's behalf), the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company of any of its Subsidiaries.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(p) <u>No Material Actions or Proceedings</u>. Except as set forth in the Prospectus, there is no legal or governmental proceeding to which the Company or any of its Subsidiaries is a party or of which any property or assets of the Company or any of its Subsidiaries is the subject, including any proceeding before the United States Food and Drug Administration of the U.S. Department of Health and Human Services ("**<u>FDA</u>**") or comparable federal, state, local or foreign governmental bodies (it being understood that the interaction between the Company and the FDA and such comparable governmental bodies relating to the clinical development and product approval process shall not be deemed proceedings for purposes of this representation), which is required to be described in the Registration Statement, the Prospectus or a document incorporated by reference therein and is not described therein, or which, singularly or in the aggregate, if determined adversely to the Company or any of its Subsidiaries, would reasonably be expected to result in a Material Adverse Change; and no such proceedings are threatened or, to the Company's knowledge, contemplated by governmental or regulatory authorities or threatened by others. The Company is in compliance with all applicable federal, state, local and foreign laws, regulations, orders and decrees governing its business as prescribed by the FDA, or any other federal, state or foreign agencies or bodies engaged in the regulation of pharmaceuticals or biohazardous substances or materials, except where noncompliance would not, singly or in the aggregate, result in a Material Adverse Change. All preclinical and clinical studies conducted by or on behalf of the Company to support approval for commercialization of the Company's products have been conducted by the Company, or to the Company's knowledge by third parties, in compliance with all applicable federal, state or foreign laws, rules, orders and regulations, except for such failure or failures to be in compliance as would not reasonably be expected to result, singly or in the aggregate, in a Material Adverse Change. Neither the Company nor any of its Subsidiaries is a party to any corporate integrity agreements, monitoring agreements, consent decrees, settlement orders, or similar agreements with or imposed by any governmental or regulatory authority. Additionally, neither the Company, any of its Subsidiaries nor any of their respective employees, officers or directors has been excluded, suspended or debarred from participation in any U.S. federal health care program or human clinical research or, to the knowledge of the Company, is subject to a governmental inquiry, investigation, proceeding, or other similar action that would reasonably be expected to result in debarment, suspension, or exclusion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(q) <u>No Violation or Default.</u> Neither the Company nor any of its Subsidiaries is (i) in violation of its charter or by-laws (or analogous governing instrument, as applicable), (ii) in default in any respect, and no event has occurred which, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which it is a party or by which it is bound or to which any of its property or assets is subject or (iii) in violation in any respect of any law, ordinance, governmental rule, regulation or court order, decree or judgment to which it or its property or assets may be subject (including, without limitation, those administered by the FDA or by any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA) except, in the case of clauses (ii) and (iii) above, for any such violation or default that would not reasonably be expected to, singularly or in the aggregate, result in a Material Adverse Change.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(r) <u>All Necessary Permits, etc</u>. The Company and each of its Subsidiaries possess all licenses, certificates, authorizations and permits issued by, and have made all declarations and filings with, the appropriate local, state, federal or foreign governmental or regulatory agencies or bodies (including, without limitation, those administered by the FDA or by any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA) that are necessary for the ownership or lease of their respective properties or the conduct of their respective businesses as described in the Prospectus (collectively, the "**<u>Governmental Permits</u>**"), except where any failures to possess any such Governmental Permits or make the same would not, singularly or in the aggregate, result in a Material Adverse Change. The Company and its Subsidiaries are in compliance with all such Governmental Permits, except where any failures to comply would not, singularly or in the aggregate, result in a Material Adverse Change; all such Governmental Permits are valid and in full force and effect, except where the validity or failure to be in full force and effect would not reasonably be expected to, singularly or in the aggregate, have a Material Adverse Change. Neither the Company nor any Subsidiary has received written notification of any revocation, modification, suspension, termination or invalidation (or proceedings related thereto) of any such Governmental Permit and the Company has no reason to believe that any such Governmental Permit will not be renewed.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(s) <u>Tax Law Compliance</u>. The Company and its Subsidiaries each (i) have timely filed all necessary federal, state, local and foreign tax returns, and all such returns were true, complete and correct, (ii) have paid all federal, state, local and foreign taxes, for which it is liable, including, without limitation, all sales and use taxes and all taxes which the Company or any of its Subsidiaries is obligated to withhold from amounts owing to employees, creditors and third parties, and (iii) do not have any tax deficiency or claims outstanding or assessed or, to its knowledge, proposed against any of them, except those, in each of the cases described in clauses (i), (ii) and (iii) above, that would not, singularly or in the aggregate, result in a Material Adverse Change.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(t) <u>Company Not an "Investment Company</u>". Neither the Company nor any of its Subsidiaries is or, after giving effect to the offering of the Stock and the application of the proceeds thereof as described in the Prospectus, will be required to register as an "investment company" or an entity "controlled" by an "investment company" within the meaning of the Investment Company Act of 1940 (the "**<u>Investment Company Act</u>**"), as amended, and the rules and regulations of the Commission thereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(u) <u>Insurance</u>. The Company and each of its Subsidiaries carry, or are covered by, insurance in such amounts and covering such risks as the Company reasonably believes is adequate for the conduct of their respective businesses and the value of their respective properties. Neither the Company nor any of its Subsidiaries has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not reasonably be expected to result in a Material Adverse Change. Neither the Company nor any of its Subsidiaries has received written notice from any insurer, agent of such insurer or the broker of the Company or any of its Subsidiaries that any material capital improvements or any other material expenditures (other than premium payments) are required or necessary to be made in order to continue such insurance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v) <u>No Price Stabilization or Manipulation</u>. Neither the Company nor, to the Company's knowledge, any of its officers, directors or affiliates has taken or will take, directly or indirectly, any action designed or intended to stabilize or manipulate the price of any security of the Company, or which caused or resulted in, or which might in the future reasonably be expected to cause or result in, stabilization or manipulation of the price of any security of the Company in violation of applicable law to facilitate the sale or resale of the Placement Shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(w) <u>Related Party Transactions</u>. There are no business relationships or related-party transactions involving the Company or any Subsidiary or any other person required to be described in the Prospectus which have not been described as required.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(x) <u>Exchange Act Compliance</u>. The documents incorporated or deemed to be incorporated by reference in the Prospectus, at the time they were or hereafter are filed with the Commission, complied and will comply in all material respects with the requirements of the Exchange Act, and, when read together with the other information in the Prospectus, at the Settlement Dates, will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(y) <u>No Unlawful Contributions or Other Payments</u>. Neither the Company nor any of its Subsidiaries nor, to the Company's knowledge, any director, officer, employee, agent, affiliate or other person, while acting on behalf of the Company or any Subsidiary, has (i) used any corporate funds for unlawful contributions, gifts, entertainment or other unlawful expenses relating to political activity, (ii) made any direct or indirect unlawful payment to foreign or domestic government officials or employees, political parties or campaigns, political party officials, or candidates for political office from corporate funds, (iii) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as amended, or any applicable anti-corruption laws, rules, or regulation of any other jurisdiction in which the Company or any Subsidiary conducts business, or (iv) made any other unlawful bribe, rebate, payoff, influence payment, kickback, or other unlawful payment to any person. The Company and its Subsidiaries have instituted, maintain and enforce, and will continue to maintain and enforce policies and procedures designed to promote and ensure compliance with all applicable anti-bribery and anti-corruption laws.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(z) <u>Compliance with Money Laundering Laws</u>. The operations of the Company and its Subsidiaries are and have been conducted at all times in material compliance with all applicable financial recordkeeping and reporting requirements, including those of the U.S. Bank Secrecy Act, as amended by Title III of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (USA PATRIOT Act), and the applicable anti-money laundering statutes of jurisdictions where the Company and its Subsidiaries conduct business, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the "**<u>Anti-Money Laundering Laws</u>**"), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its Subsidiaries with respect to the Anti-Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(aa) <u>Compliance with OFAC</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) Neither the Company nor any of its Subsidiaries, nor any director, officer or employee thereof, nor to
the Company's knowledge, any agent, affiliate, representative, or other person acting on behalf of the Company or any of its Subsidiaries,
is an individual or entity ("  **<u>Person</u>**") that is, or is owned or controlled by a Person that is: (i) the subject
of any economic, financial or trade sanctions administered or enforced by the U.S. Department of Treasury's Office of Foreign Assets
Control ("  **<u>OFAC</u>** "), the United Nations Security Council, the European Union ("  **<u>EU</u>** "),
His Majesty's Treasury, the Swiss Secretariat of Economic Affairs, or other relevant sanctions authority (collectively, "  **<u>Sanctions</u>** "),
nor (ii) located, organized, or resident in a country or territory that is the subject of a U.S. government embargo (including, without
limitation, the so-called Donetsk People's Republic, the so-called Luhansk People's Republic, the Crimea Region of Ukraine,
the non-government controlled areas of the Zaporizhzhia and Kherson Regions, Cuba, Iran, North Korea and Syria).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) The Company will not, directly or indirectly, use the Net Proceeds, or lend, contribute or otherwise make
available such Net Proceeds to any Subsidiary, joint venture partner or other Person: (i) to fund or facilitate any activities or business
of or with any Person that, at the time of such funding or facilitation, is the subject of Sanctions, or in any country or territory that,
at the time of such funding or facilitation, is the subject of a U.S. government embargo; or (ii) in any other manner that will result
in a violation of Sanctions by any Person (including TD Cowen).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(C) Since April 24, 2019, the Company and its Subsidiaries have not knowingly engaged in, are not now knowingly
engaged in, and will not engage in, any direct or indirect dealings or transactions with any Person that at the time of the dealing or
transaction is or was the target of Sanctions or any country or territory that, at the time of the dealing or transaction is or was the
subject of a U.S. government embargo.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(bb) <u>Company's Accounting System</u>. The Company and each of its Subsidiaries maintains a system of "internal control over financial reporting" (as such term is defined in Rule 13a-15(f) of the General Rules and Regulations under the Exchange Act (the "**<u>Exchange Act Rules</u>**")) that complies in all material respects with the requirements of the Exchange Act. The Company's internal controls over financial reporting are effective at the reasonable assurance level. Except as described in the Prospectus, since the end of the Company's most recent fiscal year, there has been (A) no material weakness in the Company's internal control over financial reporting (whether or not remediated) and (B) no change in the Company's internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting. The Company and its Subsidiaries maintain internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management's general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management's general or specific authorization; (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences; and (v) interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement and the Prospectus fairly presents the information called for in all material respects and is prepared in accordance with the Commission's rules and guidelines applicable thereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(cc) <u>Disclosure Controls</u>. The Company and its Subsidiaries maintain disclosure controls and procedures (as such is defined in Rule 13a-15(e) of the Exchange Act Rules) that comply in all material respects with the requirements of the Exchange Act. The Company and its Subsidiaries have conducted evaluations of the effectiveness of their disclosure controls as required by Rule 13a-15 of the Exchange Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(dd) <u>Compliance with Environmental Laws</u>. The Company and its Subsidiaries are in compliance with all foreign, federal, state and local rules, laws and regulations relating to the use, treatment, storage and disposal of hazardous or toxic substances or waste and protection of health and safety or the environment which are applicable to their businesses ("**<u>Environmental Laws</u>**") other than any lack of compliance that would not reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change. Except as would not reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change, there has been no storage, generation, transportation, handling, treatment, disposal, discharge, emission, or other release of any kind of toxic or other wastes or other hazardous substances by, due to, or caused by the Company or any of its Subsidiaries (or, to the Company's knowledge, any other entity for whose acts or omissions the Company or any of its Subsidiaries is or may otherwise be liable) upon any of the property now or previously owned or leased by the Company or any of its Subsidiaries, or upon any other property, in violation of any Environmental Laws, in any material respect; and there has been no disposal, discharge, emission or other release of any kind onto such property or into the environment surrounding such property of any toxic or other wastes or other hazardous substances in violation of Environmental Laws in any material respect with respect to which the Company or any of its Subsidiaries has knowledge.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ee) <u>Intellectual Property</u>. The Company and its Subsidiaries own or possess the valid right to use all (i) valid and enforceable patents, patent applications, trademarks, trademark registrations, service marks, service mark registrations, Internet domain name registrations, copyrights, copyright registrations, licenses, trade secret rights ("**<u>Intellectual Property Rights</u>**") and (ii) inventions, software, works of authorships, trademarks, service marks, trade names, databases, formulae, know how, Internet domain names and other intellectual property (including trade secrets and other unpatented and/or unpatentable proprietary confidential information, systems, or procedures) (collectively, "**<u>Intellectual Property Assets</u>**") necessary to conduct their respective businesses as currently conducted, and as proposed to be conducted and described in the Prospectus. The Company and its Subsidiaries have not received any opinion from their legal counsel concluding that any activities of their respective businesses infringe, misappropriate, or otherwise violate, valid and enforceable Intellectual Property Rights of any other person, and have not received written notice of any challenge, which is to their knowledge still pending, by any other person to the rights of the Company and its Subsidiaries with respect to any Intellectual Property Rights or Intellectual Property Assets owned or used by the Company or its Subsidiaries. To the Company's knowledge, the Company and its Subsidiaries' respective businesses as now conducted do not give rise to any infringement of, any misappropriation of, or other violation of, any valid and enforceable Intellectual Property Rights of any other person. All licenses for the use of the Intellectual Property Rights described in the Prospectus are valid, binding upon, and enforceable by or against the parties thereto in accordance to its terms. The Company and its Subsidiaries have complied in all material respects with, and are not in breach nor have they received any asserted or threatened claim of breach of any Intellectual Property license, and the Company and its Subsidiaries have no knowledge of any breach or anticipated breach by any other person to any Intellectual Property license. Except as described in the Prospectus, to the Company's knowledge, no claim has been made against the Company and its Subsidiaries alleging the infringement by the Company and its Subsidiaries of any patent, trademark, service mark, trade name, copyright, trade secret, license in or other intellectual property right or franchise right of any person. The Company has taken all reasonable steps to protect, maintain and safeguard its Intellectual Property Rights, including the execution of appropriate nondisclosure and confidentiality agreements. The consummation of the transactions contemplated by this Agreement will not result in the loss or impairment of or payment of any additional amounts with respect to, nor require the consent of any other person in respect of, the Company's right to own, use, or hold for use any of the Intellectual Property Rights as owned, used or held for use in the conduct of the business as currently conducted. With respect to the use of the software in the Company's business as it is currently conducted, the Company and its Subsidiaries have not experienced any defects in such software, including any error or omission in the processing of any transactions, other than defects which have been corrected and defects that would not reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change, and to the Company's knowledge, no such software contains any device or feature designed to disrupt, disable, or otherwise impair the functioning of any software or is subject to the terms of any "open source" or other similar license that provides for the source code of the software to be publicly distributed or dedicated to the public.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ff) <u>Listing</u>. The Company is subject to and in compliance in all material respects with the reporting requirements of Section 13 or Section 15(d) of the Exchange Act. The Common Stock is registered pursuant to Section 12(b) or Section 12(g) of the Exchange Act and is listed on the Nasdaq, and the Company has taken no action designed to, or reasonably likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act or delisting the Common Stock from Nasdaq, nor has the Company received any notification that the Commission or Nasdaq is contemplating terminating such registration or listing. All of the Placement Shares that have been or may be sold under this Agreement have been approved for listing on the Nasdaq, subject to official notice of issuance; the Company has taken all necessary actions to ensure that, upon and at all times after the Nasdaq shall have approved the Placement Shares for listing, it will be in compliance with all applicable corporate governance requirements set forth in the Nasdaq's listing rules that are then in effect.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(gg) <u>Brokers</u>. Except for TD Cowen, there is no broker, finder or other party that is entitled to receive from the Company any brokerage or finder's fee or other fee or commission as a result of any transactions contemplated by this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(hh) <u>No Outstanding Loans or Other Indebtedness</u>. Except as described in the Prospectus, there are no outstanding loans, advances (except normal advances for business expenses in the ordinary course of business) or guarantees or indebtedness by the Company to or for the benefit of any of the officers or directors of the Company or any of the members of any of them.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) <u>No Reliance</u>. The Company has not relied upon TD Cowen or legal counsel for TD Cowen for any legal, tax or accounting advice in connection with the offering and sale of the Placement Shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(jj) <u>Lending Relationship</u>. Except as disclosed in the Prospectus, the Company does not intend to use any of the proceeds from the sale of the Placement Shares to repay any outstanding debt owed to TD Cowen or any affiliate of TD Cowen.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(kk) <u>FINRA Exemption</u>. The Company qualifies as an "experienced issuer" (within the meaning of FINRA Conduct Rule 5110(j)(6)) for purposes of the exemption from filing under FINRA Conduct Rule 5110(h)(1)(C).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ll) <u>[Reserved]</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(mm) <u>Privacy Laws</u>. The Company and its Subsidiaries are, and at all prior times were, in material compliance with all applicable data privacy and security laws and regulations; and the Company and its Subsidiaries have taken all necessary actions to comply with the European Union General Data Protection Regulation ("**<u>GDPR</u>**") (EU 2016/679) (collectively, "**<u>Privacy Laws</u>**"). To ensure compliance with the Privacy Laws, the Company and its Subsidiaries have in place, comply in all material respects with, and take appropriate steps reasonably designed to ensure material compliance with their policies and procedures relating to data privacy and security and the collection, storage, use, disclosure, handling and analysis of Personal Data (the "**<u>Policies</u>**"). The Company provides materially accurate notice of its Policies to its customers, employees, third party vendors and representatives, as required by Privacy Laws. The Policies are reasonably designed to provide accurate and sufficient notice of the Company's then-current privacy practices relating to its subject matter and such Policies do not contain any material omissions of the Company's then-current privacy practices. "Personal Data" means (i) a natural persons' name, street address, telephone number, email address, photograph, social security number, bank information, or customer or account number; (ii) any information which would qualify as "personally identifying information" under the unfair or deceptive trade practice authority of the Federal Trade Commission Act, as amended; (iii) Protected Health Information as defined by the Health Insurance Portability and Accountability Act ("**<u>HIPAA</u>**"); (iv) "personal data" as defined by GDPR; and (v) any other piece of information that allows the identification of such natural person, or his or her family, or permits the collection or analysis of any data related to an identified person's health or sexual orientation. None of such disclosures made or contained in any of the Policies have been inaccurate, misleading, deceptive or in violation of any Privacy Laws or Policies in any material respect. To the knowledge of the Company, the execution, delivery and performance of this Agreement will not result in a breach of any Privacy Laws or Policies. Neither the Company nor any of its Subsidiaries, (i) has received written notice of any actual or potential liability under or relating to, or actual or potential violation of, any of the Privacy Laws, and has no knowledge of any event or condition that would reasonably be expected to result in any such notice; (ii) is currently conducting or paying for, in whole or in part, any investigation, remediation or other corrective action pursuant to any Privacy Law; or (iii) is a party to any order, decree, or agreement that imposed any material obligation or liability under any Privacy Law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(nn) <u>IT Systems</u>. (i)(x) To the knowledge of the Company, there has been no security breach or attack or other compromise of or relating to any of the Company's and its Subsidiaries' information technology and computer systems, networks, hardware, software, data (including the data of their respective customers, employees, suppliers, vendors and any third party data maintained by or on behalf of them), equipment or technology ("**<u>IT Systems and Data</u>**") that would reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change, and (y) the Company and its Subsidiaries have not been notified of, and have no knowledge of, any event or condition that would reasonably be expected to result in any security breach, attack or compromise to their IT Systems and Data that would reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change, and (ii) the Company and its Subsidiaries have complied, and are presently in material compliance with, all applicable laws, statutes or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority and all contractually mandated industry guidelines or standards, internal policies and contractual obligations relating to the privacy and security of IT Systems and Data and to the protection of such IT Systems and Data from unauthorized use, access, misappropriation or modification. The Company has implemented and maintained commercially reasonable controls, policies, procedures, and safeguards to maintain and protect their material confidential information and the integrity, continuous operation, redundancy and security of all IT Systems and Data (including Personal Data) used in connection with their businesses, and to the Company's knowledge there have been no breaches, violations, outages or unauthorized uses of or accesses to Personal Data, except for those situations that have been remedied without material cost or liability or the duty to notify any other person, nor any incidents under internal review or investigations relating to Personal Data.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(oo) <u>Export and Import Laws</u>. Each of the Company and its Subsidiaries, and, to the Company's knowledge, each of their affiliates and any director, officer, agent or employee of, or other person associated with or acting on behalf of, the Company has acted at all times in compliance in all material respects with applicable Export and Import Laws (as defined below) and there are no claims, complaints, charges, investigations or proceedings pending or expected or, to the knowledge of the Company, threatened between the Company or any of the Subsidiaries and any governmental authority under any Export or Import Laws. The term "Export and Import Laws" means the Arms Export Control Act, the International Traffic in Arms Regulations, the Export Administration Act of 1979, as amended, the Export Administration Regulations, and all other laws and regulations of the United States government regulating the provision of services to non-U.S. parties or the export and import of articles or information from and to the United States of America, and all similar laws and regulations of any foreign government regulating the provision of services to parties not of the foreign country or the export and import of articles and information from and to the foreign country to parties not of the foreign country.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(pp) <u>Other At The Market Sales Agreements</u>. The Company is not a party to any agreement with an agent or underwriter for any other "at the market" offering.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(qq) <u>Actively-Traded Security</u>. The Common Stock is an "actively-traded security" exempted from the requirements of Rule 101 of Regulation M under the Exchange Act by subsection (c)(1) of such rule.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(rr) <u>Outbound Investment Security Program</u>. Neither the Company nor any of its Subsidiaries is a "covered foreign person", as that term is defined in 31 C.F.R. § 850.209. Neither the Company nor any of its Subsidiaries currently engages, or has plans to engage, directly or indirectly, in a "covered activity", as that term is defined in 31 C.F.R. § 850.208 ("**<u>Covered Activity</u>**"). The Company does not have any joint ventures that engages in or plans to engage in any Covered Activity. The Company also does not, directly or indirectly, hold a board seat on, have a voting or equity interest in, or have any contractual power to direct or cause the direction of the management or policies of any person or persons that engages or plans to engage in any Covered Activity.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ss) <u>Statistical and Market Data</u>. The statistical and market related data included in the Registration Statement and the Prospectus are based on or derived from sources that the Company believes to be reliable and accurate, and such data agree in all material respects with the sources from which they are derived.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(tt) <u>No Labor Dispute</u>. There is (A) no unfair labor practice complaint pending against the Company, or any of its Subsidiaries, nor to the Company's knowledge, threatened against it or any of its Subsidiaries, before the National Labor Relations Board, any state or local labor relation board or any foreign labor relations board, and no significant grievance or significant arbitration proceeding arising out of or under any collective bar-gaining agreement is so pending against the Company or any of its Subsidiaries, or, to the Company's knowledge, threatened against it and (B) no labor disturbance by or dispute with employees of the Company or any of its Subsidiaries exists or, to the Company's knowledge, is contemplated or threatened, and the Company is not aware of any existing or imminent labor disturbance by the employees of any of its or its Subsidiaries' principal suppliers, manufacturers, customers or contractors, in each of the cases con-templated by clauses (A) or (B) hereof, that would reasonably be expected, singularly or in the aggregate, to result in a Material Adverse Change. The Company is not aware that any key employee or significant group of employees of the Company or any Subsidiary plans to terminate employment with the Company or any such Subsidiary.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(uu) <u>Compliance with ERISA</u>. No "prohibited transaction" (as defined in Section 406 of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder ("**<u>ERISA</u>**"), or Section 4975 of the Internal Revenue Code of 1986, as amended from time to time (the "**<u>Code</u>**")) or "accumulated funding deficiency" (as defined in Section 302 of ERISA) or any of the events set forth in Section 4043(b) of ERISA (other than events with respect to which the thirty (30)-day notice requirement under Section 4043 of ERISA has been waived) has occurred or would reasonably be expected to occur with respect to any employee benefit plan of the Company or any of its Subsidiaries which would, singularly or in the aggregate, result in a Material Adverse Change. Each employee benefit plan of the Company or any of its Subsidiaries is in compliance in all material respects with applicable law, including ERISA and the Code. The Company and its Subsidiaries have not incurred and could not reasonably be expected to incur liability under Title IV of ERISA with respect to the termination of, or withdrawal from, any pension plan (as defined in ERISA). Each pension plan for which the Company or any of its Subsidiaries would have any liability that is intended to be qualified under Section 401(a) of the Code is so qualified, and nothing has occurred, whether by action or by failure to act, which would, singularly or in the aggregate, cause the loss of such qualification.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(vv) <u>Regulatory Matters</u>. The studies, tests and preclinical or clinical trials conducted by or on behalf of the Company that are described in the Prospectus (the "**<u>Company Studies and Trials</u>**") were and, if still pending, are being, conducted in all material respects in accordance with experimental protocols, procedures and controls pursuant to, where applicable, accepted professional scientific standards; the descriptions of the results of the Company Studies and Trials contained in the Prospectus are accurate in all material respects; the Company has no knowledge of any other studies or trials not described in the Prospectus, the results of which are inconsistent with or call in question the results described or referred to in the Prospectus; the Company has no knowledge of any research misconduct or data fraud in any studies or clinical trials, the results of which the Company intends to include or reference in any regulatory submission for any product; and the Company has not received any written notices or correspondence with the FDA or any foreign, state or local governmental body exercising comparable authority requiring the termination, suspension or material modification of any Company Studies or Trials where such termination, suspension or material modification would reasonably be expected to result in a Material Adverse Change and, to the Company's knowledge, there are no reasonable grounds for the same. The Company has obtained (or caused to be obtained) informed consent by or on behalf of each human subject who participated in the Company Studies and Trials. In using or disclosing patient information received by the Company in connection with the Company Studies and Trials, the Company has complied in all material respects with all applicable laws and regulatory rules or requirements related to patient information, including, without limitation, the Health Insurance Portability and Accountability Act of 1996 and the rules and regulations thereunder. To the Company's knowledge, none of the Company Studies and Trials involved any investigator who has been disqualified as a clinical investigator or has been found by the FDA to have engaged in scientific misconduct. To the Company's knowledge, the manufacturing facilities and operations of its suppliers are operated in compliance in all material respects with all applicable statutes, rules, regulations and policies of the FDA and comparable regulatory agencies outside of the United States to which the Company is subject.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ww) <u>Regulatory Compliance</u>. Neither the Company nor any of its Subsidiaries has received any unresolved FDA Form 483, notice of adverse filing, warning letter or untitled letter or other written notice from the FDA, or any other court or arbitrator or federal, state, local, or foreign governmental or regulatory authority, in each case, alleging or asserting noncompliance with the Federal Food, Drug and Cosmetic Act (21 U.S.C § 301 et seq.) (the "**<u>FDCA</u>**"). The Company and its Subsidiaries are, and the Company's directors, officers, employees and, to the Company's knowledge, agents are, and have been in material compliance with applicable health care laws, including without limitation, the FDCA, the federal Anti-Kickback Statute (42 U.S.C. § 1320a-7b(b)), the civil False Claims Act (31 U.S.C. § 3729 et seq.), the criminal False Claims Law (42 U.S.C. § 1320a-7b(a)), the Civil Monetary Penalties Law (42 U.S.C. § 1320a-7a), the Health Insurance Portability and Accountability Act of 1996 (42 U.S.C. § 1320d et seq.), as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 (42 U.S.C. § 17921 et seq.), the exclusion laws (42 U.S.C. § 1320a-7), Medicare (Title XVIII of the Social Security Act), Medicaid (Title XIX of the Social Security Act), and the Patient Protection and Affordable Care Act of 2010, as amended by the Health Care and Education Affordability Reconciliation Act of 2010, including, without limitation, the Physician Payments Sunshine Act (42 U.S.C. § 1320a-7h), and the regulations promulgated pursuant to such laws, and comparable state laws, and all other local, state, federal, national, supranational, and foreign laws, manual provisions, policies and administrative guidance relating to the regulation of the Company and its Subsidiaries (collectively, "**<u>Health Care Laws</u>**). The Company and its Subsidiaries have not, either voluntarily or involuntarily, initiated, conducted or issued or caused to be initiated, conducted or issued, any recall, market withdrawal or replacement, safety alert, post sale warning, "dear doctor" letter, or other notice or action relating to the alleged lack of safety or efficacy of any product or any alleged product defect or violation and, to the Company's knowledge, no third party has initiated or conducted any such notice or action. Neither the Company nor any of its officers, directors, employees, or, to the Company's knowledge, its agents has been or is currently excluded from participation in the Medicare and Medicaid programs or any other state or federal health care program.

Any certificate signed by an officer of the Company and delivered to TD Cowen or to counsel for TD Cowen pursuant to or in connection with this Agreement shall be deemed to be a representation and warranty by the Company to TD Cowen as to the matters set forth therein.

The Company acknowledges that TD Cowen and, for purposes of the opinions to be delivered pursuant to <u>Section 7</u> hereof, counsel to the Company and counsel to TD Cowen, will rely upon the accuracy and truthfulness of the foregoing representations and hereby consents to such reliance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. <u>Covenants of the Company</u>. The Company covenants and agrees with TD Cowen that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Registration Statement Amendments</u>. After the date of this Agreement and during any period in which a Prospectus relating to any Placement Shares is required to be delivered by TD Cowen under the Securities Act (including in circumstances where such requirement may be satisfied pursuant to Rule 172 under the Securities Act), (i) the Company will notify TD Cowen promptly of the time when any subsequent amendment to the Registration Statement, other than documents incorporated by reference, has been filed with the Commission and/or has become effective or any subsequent supplement to the Prospectus has been filed and of any request by the Commission for any amendment or supplement to the Registration Statement or Prospectus or for additional information (insofar as it relates to the transactions contemplated hereby), (ii) the Company will prepare and file with the Commission, promptly upon TD Cowen's request, any amendments or supplements to the Registration Statement or Prospectus that, in TD Cowen's reasonable opinion, may be necessary or advisable in connection with the distribution of the Placement Shares by TD Cowen (*provided, however*, that the failure of TD Cowen to make such request shall not relieve the Company of any obligation or liability hereunder, or affect TD Cowen's right to rely on the representations and warranties made by the Company in this Agreement); (iii) the Company will not file any amendment or supplement to the Registration Statement or Prospectus, other than documents incorporated by reference, relating to the Placement Shares or a security convertible into the Placement Shares unless a copy thereof has been submitted to TD Cowen within a reasonable period of time before the filing and TD Cowen has not reasonably objected thereto (*provided, however*, that the failure of TD Cowen to make such objection shall not relieve the Company of any obligation or liability hereunder, or affect TD Cowen's right to rely on the representations and warranties made by the Company in this Agreement) and the Company will furnish to TD Cowen at the time of filing thereof a copy of any document that upon filing is deemed to be incorporated by reference into the Registration Statement or Prospectus, except for those documents available via EDGAR; (iv) the Company will cause each amendment or supplement to the Prospectus, other than documents incorporated by reference, to be filed with the Commission as required pursuant to the applicable paragraph of Rule 424(b) of the Securities Act, and (v) prior to the termination of this Agreement, the Company will notify TD Cowen if at any time the Registration Statement shall no longer be effective as a result of the passage of time pursuant to Rule 415 under the Securities Act or otherwise. Prior to the initial sale of any Placement Shares, the Company shall file a final Prospectus Supplement pursuant to Rule 424(b) relating to the Placement Shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>Notice of Commission Stop Orders</u>. The Company will advise TD Cowen, promptly after it receives notice or obtains knowledge thereof, of the issuance or threatened issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement, of the suspension of the qualification of the Placement Shares for offering or sale in any jurisdiction, or of the initiation or threatening of any proceeding for any such purpose; and it will promptly use its commercially reasonable efforts to prevent the issuance of any stop order or to obtain its withdrawal if such a stop order should be issued.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>Delivery of Prospectus; Subsequent Changes</u>. During any period in which a Prospectus relating to the Placement Shares is required to be delivered by TD Cowen under the Securities Act with respect to a pending sale of the Placement Shares, (including in circumstances where such requirement may be satisfied pursuant to Rule 172 under the Securities Act), the Company will use its commercially reasonable efforts to comply with all requirements imposed upon it by the Securities Act, as from time to time in force, and to file on or before their respective due dates (taking into account any extensions available under the Exchange Act) all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, 15(d) or any other provision of or under the Exchange Act. If during such period any event occurs as a result of which the Prospectus as then amended or supplemented would include an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances then existing, not misleading, or if during such period it is necessary to amend or supplement the Registration Statement or Prospectus to comply with the Securities Act, the Company will promptly notify TD Cowen to suspend the offering of Placement Shares during such period and the Company will promptly amend or supplement the Registration Statement or Prospectus (at the expense of the Company) so as to correct such statement or omission or effect such compliance; provided, that, the Company may delay the filing of any amendment or supplement, if in the judgement of the Company, it is in the best interest of the Company, during which time of delay of TD Cowen shall be under no obligation to make any sales of the Placement Shares hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) <u>Listing of Placement Shares</u>. During any period in which the Prospectus relating to the Placement Shares is required to be delivered by TD Cowen under the Securities Act with respect to a pending sale of the Placement Shares (including in circumstances where such requirement may be satisfied pursuant to Rule 172 under the Securities Act), the Company will use its commercially reasonable efforts to cause the Placement Shares to be listed on Nasdaq and to qualify the Placement Shares for sale under the securities laws of such jurisdictions as TD Cowen reasonably designates and to continue such qualifications in effect so long as required for the distribution of the Placement Shares; *provided, however,* that the Company shall not be required in connection therewith to qualify as a foreign corporation or dealer in securities or file a general consent to service of process in any jurisdiction.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) <u>Delivery of Registration Statement and Prospectus</u>. The Company will furnish to TD Cowen and its counsel (at the expense of the Company) copies of the Registration Statement, the Prospectus (including all documents incorporated by reference therein) and all amendments and supplements to the Registration Statement or Prospectus that are filed with the Commission during any period in which a Prospectus relating to the Placement Shares is required to be delivered under the Securities Act (including all documents filed with the Commission during such period that are deemed to be incorporated by reference therein), in each case as soon as reasonably practicable and in such quantities as TD Cowen may from time to time reasonably request and, at TD Cowen's request, will also furnish copies of the Prospectus to each exchange or market on which sales of the Placement Shares may be made; *provided, however,* that the Company shall not be required to furnish any document (other than the Prospectus) to TD Cowen to the extent such document is available on EDGAR.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) <u>Earnings Statement</u>. The Company will make generally available to its security holders as soon as practicable, but in any event not later than 16 months after the end of the Company's current fiscal quarter, an earnings statement of the Company (which need not be audited) that satisfies the provisions of Section 11(a) and Rule 158 of the Securities Act, *provided* that the Company will be deemed to have furnished such statement to its security holders to the extent it is filed on EDGAR.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g) <u>Expenses</u>. The Company, whether or not the transactions contemplated hereunder are consummated or this Agreement is terminated, in accordance with the provisions of <u>Section 11</u> hereunder, will pay the following expenses all incident to the performance of its obligations hereunder, including, but not limited to, expenses relating to (i) the preparation, printing and filing of the Registration Statement and each amendment and supplement thereto, of each Prospectus and of each amendment and supplement thereto, (ii) the preparation, issuance and delivery of the Placement Shares, (iii) the qualification of the Placement Shares under securities laws in accordance with the provisions of <u>Section 7(d)</u> of this Agreement, including filing fees (provided, however, that any fees or disbursements of counsel for TD Cowen in connection therewith shall be paid by TD Cowen except as set forth in (vii) below), (iv) the printing and delivery to TD Cowen of copies of the Prospectus and any amendments or supplements thereto, and of this Agreement, (v) the fees and expenses incurred in connection with the listing or qualification of the Placement Shares for trading on Nasdaq, (vi) the filing fees and expenses, if any, of the Commission, (vii) the filing fees and associated legal expenses of TD Cowen's outside counsel for filings with the FINRA Corporate Financing Department, such legal expense reimbursement not to exceed $10,000 and, (viii) the reasonable fees and disbursements of TD Cowen's counsel in amounts not to exceed (A) $100,000 in connection with execution of this Agreement and (B) $25,000 in connection with each Bring-Down Date with respect to which the Company is obligated to deliver a certificate pursuant to <u>Section 7(m)</u>, for which no waiver is applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h) <u>Use of Proceeds</u>. The Company will use the Net Proceeds as described in the Prospectus in the section entitled "Use of Proceeds."

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) <u>Notice of Other Sales</u>. During the pendency of any Placement Notice given hereunder, and for five (5) trading days following the termination of any Placement Notice given hereunder, the Company shall provide TD Cowen notice as promptly as reasonably possible before it offers to sell, contracts to sell, sells, grants any option to sell or otherwise disposes of any shares of Common Stock (other than Placement Shares offered pursuant to the provisions of this Agreement) or securities convertible into or exchangeable for Common Stock, warrants or any rights to purchase or acquire Common Stock; *provided*, that such notice shall not be required in connection with the (i) issuance, grant or sale of Common Stock, options to purchase shares of Common Stock or Common Stock issuable upon the exercise of options or other equity awards pursuant to any stock option, stock bonus or other stock plan or arrangement described in the Prospectus, (ii) the issuance of securities in connection with an acquisition, merger or sale or purchase of assets, (iii) the issuance or sale of Common Stock pursuant to any dividend reinvestment plan that the Company may adopt from time to time provided the implementation of such is disclosed to TD Cowen in advance or (iv) any shares of Common Stock issuable upon the exchange, conversion or redemption of securities or the exercise of warrants, options or other rights in effect or outstanding as disclosed in filings by the Company available on EDGAR, or (v) the issuance of Common Stock, securities convertible into or exercisable for Common Stock or other securities offered and sold in a privately negotiated transaction to vendors, customers, strategic partners or other investors conducted or in connection with a transaction that includes a commercial relationship (including joint ventures, marketing or distribution arrangements, collaboration agreements or intellectual property license agreements) in a manner so as not to be integrated with the offering of the Placement Shares hereby. For the avoidance of doubt, nothing herein shall be construed to restrict the Company's ability, or require the Company to provide notice to TD Cowen, to file a registration statement with the Commission.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(j) <u>Change of Circumstances</u>. The Company will, at any time during a fiscal quarter in which the Company intends to provide a Placement Notice or sell Placement Shares, advise TD Cowen promptly after it shall have received notice or obtained knowledge thereof, of any information or fact that would alter or affect in any material respect any opinion, certificate, letter or other document provided to TD Cowen pursuant to this Agreement; *provided*, that the Company may satisfy its obligation under this Section 7(j) by effecting a filing in accordance with the Exchange Act with respect to such information or fact.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(k) <u>Due Diligence Cooperation</u>. The Company will cooperate with any reasonable due diligence review conducted by TD Cowen or its agents in connection with the transactions contemplated hereby, including, without limitation, providing information and making available documents and senior corporate officers, during regular business hours and at the Company's principal offices, as TD Cowen may reasonably request.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(l) <u>Required Filings Relating to Placement of Placement Shares</u>. The Company agrees that on or prior to such dates as the Securities Act shall require, the Company will (i) file a prospectus supplement with the Commission under the applicable paragraph of Rule 424(b) under the Securities Act (each and every filing under Rule 424(b), a "**<u>Filing Date</u>**"), and (ii) deliver such number of copies of each such prospectus supplement to each exchange or market on which such sales were effected as may be required by the rules or regulations of such exchange or market. The Company shall disclose in its quarterly reports on Form 10-Q and in its annual report on Form 10-K, the number of the Placement Shares sold through TD Cowen under this Agreement and the Net Proceeds to the Company from the sale of the Placement Shares pursuant to this Agreement during the relevant quarter or, in the case of an Annual Report on Form 10-K, during the fiscal year covered by such Annual Report and the fourth quarter of such fiscal year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(m) <u>Bring-Down Dates; Certificate</u>. On or prior to the First Delivery Date and each time (i) the Company files the Prospectus relating to the Placement Shares or amends or supplements the Registration Statement or the Prospectus relating to the Placement Shares (other than a prospectus supplement filed in accordance with <u>Section 7(l)</u> of this Agreement) by means of a post-effective amendment, sticker, or supplement but not by means of incorporation of document(s) by reference to the Registration Statement or the Prospectus relating to the Placement Shares; (ii) the Company files an annual report on Form 10-K under the Exchange Act; (iii) the Company files its quarterly reports on Form 10-Q under the Exchange Act; or (iv) the Company files a report on Form 8-K containing amended financial information (other than an earnings release or other information "furnished" under Items 2.02 or 7.01 of Form 8-K) under the Exchange Act (each date of filing of one or more of the documents referred to in clauses (i) through (iv) shall be a "**<u>Bring-Down Date</u>**"); the Company shall furnish TD Cowen with a certificate, in the form attached hereto as <u>Exhibit 7(m)</u> within one (1) Trading Day of any Bring-Down Date if requested by TD Cowen. The requirement to provide a certificate under this <u>Section 7(m)</u> shall be waived for any Bring-Down Date occurring at a time at which no Placement Notice is pending, which waiver shall continue until the earlier to occur of the date the Company delivers a Placement Notice hereunder (which for such calendar quarter shall be considered a Bring-Down Date) and the next occurring Bring-Down Date. Notwithstanding the foregoing, if the Company subsequently decides to sell Placement Shares following a Bring-Down Date when the Company relied on such waiver and did not provide TD Cowen with a certificate under this <u>Section 7(m)</u>, then before the Company delivers the Placement Notice or TD Cowen sells any Placement Shares, the Company shall provide TD Cowen with a certificate, in the form attached hereto as <u>Exhibit 7(m)</u>, dated the date of the Placement Notice.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(n) <u>Legal Opinion</u>. On or prior to the First Delivery Date and within one (1) Trading Day of each Bring-Down Date with respect to which the Company is obligated to deliver a certificate in the form attached hereto as <u>Exhibit 7(m)</u> for which no waiver is applicable, the Company shall cause to be furnished to TD Cowen a written opinion and negative assurance letter of Kirkland & Ellis LLP ("**<u>Company Counsel</u>**") and written opinion of Seed Intellectual Property Law Group LLP, intellectual property counsel to the Company ("**<u>Company IP Counsel</u>**"), or other counsel satisfactory to TD Cowen, in form and substance satisfactory to TD Cowen and its counsel, dated the date that the opinion is required to be delivered, modified, as necessary, to relate to the Registration Statement and the Prospectus as then amended or supplemented; *provided*, *however*, that in lieu of such opinions for subsequent Bring-Down Dates, Company Counsel and Company IP Counsel, as applicable, may furnish TD Cowen with a letter (a "**<u>Reliance Letter</u>**") to the effect that TD Cowen may rely on a prior opinion delivered under this <u>Section 7(n)</u> to the same extent as if it were dated the date of such letter (except that statements in such prior opinion shall be deemed to relate to the Registration Statement and the Prospectus as amended or supplemented at such Bring-Down Date).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(o) <u>Comfort Letter</u>. On or prior to the First Delivery Date and within one (1) Trading Day of each Bring-Down Date with respect to which the Company is obligated to deliver a certificate in the form attached hereto as <u>Exhibit 7(m)</u> for which no waiver is applicable, the Company shall cause its independent accountants to furnish TD Cowen letters (the "**<u>Comfort Letters</u>**"), dated the date the Comfort Letter is delivered, in form and substance satisfactory to TD Cowen, (i) confirming that they are an independent registered public accounting firm within the meaning of the Securities Act and the PCAOB, (ii) stating, as of such date, the conclusions and findings of such firm with respect to the financial information and other matters ordinarily covered by accountants' "comfort letters" to TD Cowen in connection with registered public offerings (the first such letter, the "**<u>Initial Comfort Letter</u>**") and (iii) updating the Initial Comfort Letter with any information that would have been included in the Initial Comfort Letter had it been given on such date and modified as necessary to relate to the Registration Statement and the Prospectus, as amended and supplemented to the date of such letter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(p) <u>Chief Financial Officer's Certificate</u>. On or prior to the First Delivery Date and within one (1) Trading Day of each Bring-Down Date with respect to which the Company is obligated to deliver a certificate in a form to be mutually agreed upon for which no waiver is applicable, the Company shall have delivered to TD Cowen a certificate executed by the Chief Financial Officer of the Company ("CFO Certificate"), dated as of such date, in form and substance satisfactory to TD Cowen.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(q) <u>Market Activities</u>. The Company will not, directly or indirectly, (i) take any action designed to cause or result in, or that constitutes or might reasonably be expected to constitute, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Placement Shares or (ii) sell, bid for, or purchase the Placement Shares to be issued and sold pursuant to this Agreement, or pay anyone any compensation for soliciting purchases of the Placement Shares other than TD Cowen; provided, however, that the Company may bid for and purchase shares of its Common Stock in accordance with Rule 10b-18 under the Exchange Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(r) <u>Insurance</u>. The Company and its Subsidiaries shall maintain, or cause to be maintained, insurance in such amounts and covering such risks as is reasonable and customary for the business for which it is engaged.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(s) <u>Compliance with Laws</u>. The Company and each of its Subsidiaries shall maintain, or cause to be maintained, all material environmental permits, licenses and other authorizations required by federal, state and local law in order to conduct their businesses as described in the Prospectus, and the Company and each of its Subsidiaries shall conduct their businesses, or cause their businesses to be conducted, in substantial compliance with such permits, licenses and authorizations and with applicable environmental laws, except where the failure to maintain or be in compliance with such permits, licenses and authorizations could not reasonably be expected to result in a Material Adverse Change.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(t) <u>Investment Company Act</u>. The Company will conduct its affairs in such a manner so as to reasonably ensure that neither it nor its Subsidiaries will be or become, at any time prior to the termination of this Agreement, an "investment company," as such term is defined in the Investment Company Act, assuming no change in the Commission's current interpretation as to entities that are not considered an investment company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(u) <u>Securities Act and Exchange Act</u>. The Company will use its reasonable best efforts to comply with all requirements imposed upon it by the Securities Act and the Exchange Act as from time to time in force, so far as necessary to permit the continuance of sales of, or dealings in, the Placement Shares as contemplated by the provisions hereof and the Prospectus.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v) <u>No Offer to Sell</u>. Other than a Permitted Free Writing Prospectus, neither TD Cowen nor the Company (including its agents and representatives, other than TD Cowen in its capacity as such) will make, use, prepare, authorize, approve or refer to any written communication (as defined in Rule 405 under the Securities Act), required to be filed with the Commission, that constitutes an offer to sell or solicitation of an offer to buy Placement Shares hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(w) <u>Sarbanes-Oxley Act</u>. The Company and its Subsidiaries will use their reasonable best efforts to comply with all effective applicable provisions of the Sarbanes-Oxley Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(x) <u>Affirmation</u>. Each Placement Notice delivered by the Company to TD Cowen shall be deemed to be (i) an affirmation that the representations, warranties and agreements of the Company herein contained and contained in any certificate delivered to TD Cowen pursuant hereto are true and correct at the time of delivery of such Placement Notice, and (ii) an undertaking that such representations, warranties and agreements will be true and correct on any applicable Time of Sale and Settlement Date, as though made at and as of each such time (it being understood that such representations, warranties and agreements shall relate to the Registration Statement and the Prospectus as amended and supplemented to the time of such Placement Notice acceptance).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(y) <u>Renewal</u>. If immediately prior to the third anniversary (the "**<u>Renewal Deadline</u>**") of the initial effective date of the Registration Statement, the aggregate gross sales price of Placement Shares sold by the Company is less than the Maximum Amount and this Agreement has not expired or been terminated, the Company will, prior to the Renewal Deadline, use reasonable efforts to file, if it has not already done so and is eligible to do so, a new shelf registration statement relating to the Placement Shares, in a form reasonably satisfactory to TD Cowen, and, if not automatically effective, will use its reasonable best efforts to cause such registration statement to be declared effective within 60 days after the Renewal Deadline. The Company will take all other action it reasonably determines to be necessary or appropriate to permit the issuance and sale of the Placement Shares to continue as contemplated in the expired registration statement relating to the Placement Shares. References herein to the Registration Statement shall include such new shelf registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8. <u>Conditions to TD Cowen's Obligations</u>. The obligations of TD Cowen hereunder with respect to a Placement Notice will be subject to the continuing accuracy and completeness of the representations and warranties made by the Company herein, to the due performance by the Company of its obligations hereunder and thereunder, to the completion by TD Cowen of a due diligence review satisfactory to TD Cowen in its reasonable judgment, and to the continuing satisfaction (or waiver by TD Cowen in its sole discretion) of the following additional conditions:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Registration Statement Effective</u>. The Registration Statement shall be effective and shall be available for (i) all sales of Placement Shares issued pursuant to all prior Placement Notices and (ii) the sale of all Placement Shares contemplated to be issued pursuant to any Placement Notice.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>No Material Notices</u>. None of the following events shall have occurred and be continuing: (i) receipt by the Company or any of its Subsidiaries of any request for additional information from the Commission or any other federal or state governmental authority during the period of effectiveness of the Registration Statement, the response to which would require any post-effective amendments or supplements to the Registration Statement or the Prospectus and which have not been complied with; (ii) the issuance by the Commission or any other federal or state governmental authority of any stop order suspending the effectiveness of the Registration Statement or the initiation of any proceedings for that purpose; (iii) receipt by the Company of any notification with respect to the suspension of the qualification or exemption from qualification of any of the Placement Shares for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; or (iv) the occurrence of any event that makes any material statement made in the Registration Statement or the Prospectus or any material document incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires the making of any changes in the Registration Statement, related Prospectus or such documents so that, in the case of the Registration Statement, it will not contain any materially untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading and, that in the case of the Prospectus, it will not contain any materially untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>No Misstatement or Material Omission</u>. TD Cowen shall not have advised the Company that the Registration Statement or Prospectus, or any amendment or supplement thereto, contains an untrue statement of fact that in TD Cowen's reasonable opinion is material, or omits to state a fact that in TD Cowen's opinion is material and is required to be stated therein or is necessary to make the statements therein not misleading.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) <u>Material Changes</u>. Except as contemplated in the Prospectus, or disclosed in the Company's reports filed with the Commission, there shall not have been any material adverse change, on a consolidated basis, in the authorized capital stock of the Company or any Material Adverse Change or any development that could reasonably be expected to result in a Material Adverse Change, or any downgrading in or withdrawal of the rating assigned to any of the Company's securities (other than asset backed securities) by any rating organization or a public announcement by any rating organization that it has under surveillance or review its rating of any of the Company's securities (other than asset backed securities), the effect of which, in the case of any such action by a rating organization described above, in the reasonable judgment of TD Cowen (without relieving the Company of any obligation or liability it may otherwise have), is so material as to make it impracticable or inadvisable to proceed with the offering of the Placement Shares on the terms and in the manner contemplated in the Prospectus.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) <u>Company Counsel Legal Opinion</u>. TD Cowen shall have received the opinion and negative assurance letter of Company Counsel and the opinion of Company IP Counsel required to be delivered pursuant to <u>Section 7(n)</u> on or before the date on which such delivery of such opinion is required pursuant to <u>Section 7(n)</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) <u>TD Cowen Counsel Legal Opinion</u>. TD Cowen shall have received from Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C., counsel for TD Cowen, such opinion or opinions, on or before the date on which the delivery of the Company Counsel legal opinion is required pursuant to <u>Section 7(n)</u>, with respect to such matters as TD Cowen may reasonably require, and the Company shall have furnished to such counsel such documents as they request for enabling them to pass upon such matters.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g) <u>Comfort Letter</u>. TD Cowen shall have received the Comfort Letter required to be delivered pursuant to <u>Section 7(o)</u> on or before the date on which such delivery of such Comfort Letter is required pursuant to <u>Section 7(o)</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h) <u>Representation Certificate</u>. TD Cowen shall have received the certificate required to be delivered pursuant to <u>Section 7(m)</u> on or before the date on which delivery of such certificate is required pursuant to <u>Section 7(m)</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) <u>Secretary's Certificate</u>. On or prior to the First Delivery Date, TD Cowen shall have received a certificate, signed on behalf of the Company by its corporate secretary, in form and substance satisfactory to TD Cowen and its counsel.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(j) CFO Certificate. TD Cowen shall have received the CFO Certificate required to be delivered pursuant to Section 7(p) on or before the date on which delivery of such certificate is required pursuant to Section 7(p).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(k) <u>No Suspension</u>. Trading in the Common Stock shall not have been suspended on Nasdaq.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(l) [<u>Reserved</u>].

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(m) <u>Securities Act Filings Made</u>. All filings with the Commission required by Rule 424 under the Securities Act to have been filed prior to the issuance of any Placement Notice hereunder shall have been made within the applicable time period prescribed for such filing by Rule 424.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(n) <u>Approval for Listing</u>. The Placement Shares shall either have been (i) approved for listing on Nasdaq, subject only to notice of issuance, or (ii) the Company shall have filed an application for listing of the Placement Shares on Nasdaq at, or prior to, the issuance of any Placement Notice.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(o) <u>No Termination Event</u>. There shall not have occurred any event that would permit TD Cowen to terminate this Agreement pursuant to <u>Section 11(a)</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9. <u>Indemnification and Contribution</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) <u>Company Indemnification</u>. The Company agrees to indemnify and hold harmless TD Cowen, its affiliates and each of their respective directors, officers, partners, employees and agents of TD Cowen and each person, if any, who (i) controls TD Cowen within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, or (ii) is controlled by or is under common control with TD Cowen from and against any and all losses, claims, liabilities, expenses and damages (including, but not limited to, any and all reasonable and documented investigative, legal and other expenses incurred in connection with, and any and all amounts paid in settlement (in accordance with <u>Section 9(c)</u>) of, any action, suit or proceeding between any of the indemnified parties and any indemnifying parties or between any indemnified party and any third party, or otherwise, or any claim asserted), as and when incurred, to which TD Cowen, or any such person, may become subject under the Securities Act, the Exchange Act or other federal or state statutory law or regulation, at common law or otherwise, insofar as such losses, claims, liabilities, expenses or damages arise out of or are based, directly or indirectly, on (x) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or the Prospectus or any amendment or supplement to the Registration Statement or the Prospectus or in any free writing prospectus or in any application or other document executed by or on behalf of the Company or based on written information furnished by or on behalf of the Company filed in any jurisdiction in order to qualify the Common Stock under the securities laws thereof or filed with the Commission, (y) the omission or alleged omission to state in any such document a material fact required to be stated in it or necessary to make the statements in it not misleading or (z) any breach by any of the indemnifying parties of any of their respective representations, warranties and agreements contained in this Agreement; *provided*, *however*, that this indemnity agreement shall not apply to the extent that such loss, claim, liability, expense or damage arises from the sale of the Placement Shares pursuant to this Agreement and is caused directly or indirectly by an untrue statement or omission made in reliance upon and in conformity with solely Agent's Information. "Agent's Information" means, solely, the following information in the Prospectus: the third sentence of the eighth paragraph and the tenth paragraph under the caption "Plan of Distribution" in the Prospectus. This indemnity agreement will be in addition to any liability that the Company might otherwise have.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) <u>TD Cowen Indemnification</u>. TD Cowen agrees to indemnify and hold harmless the Company and its directors and each officer of the Company that signed the Registration Statement, and each person, if any, who (i) controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act or (ii) is controlled by or is under common control with the Company against any and all loss, liability, claim, damage and expense described in the indemnity contained in <u>Section 9(a)</u>, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendments thereto) or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with the Agent's Information.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) <u>Procedure</u>. Any party that proposes to assert the right to be indemnified under this <u>Section 9</u> will, promptly after receipt of notice of commencement of any action against such party in respect of which a claim is to be made against an indemnifying party or parties under this <u>Section 9</u>, notify each such indemnifying party of the commencement of such action, enclosing a copy of all papers served, but the omission so to notify such indemnifying party will not relieve the indemnifying party from (i) any liability that it might have to any indemnified party otherwise than under this <u>Section 9</u> and (ii) any liability that it may have to any indemnified party under the foregoing provision of this <u>Section 9</u> unless, and only to the extent that, such omission results in the forfeiture of substantive rights or defenses by the indemnifying party. If any such action is brought against any indemnified party and it notifies the indemnifying party of its commencement, the indemnifying party will be entitled to participate in and, to the extent that it elects by delivering written notice to the indemnified party promptly after receiving notice of the commencement of the action from the indemnified party, jointly with any other indemnifying party similarly notified, to assume the defense of the action, with counsel reasonably satisfactory to the indemnified party, and after notice from the indemnifying party to the indemnified party of its election to assume the defense, the indemnifying party will not be liable to the indemnified party for any legal or other expenses except as provided below and except for the reasonable documented costs of investigation subsequently incurred by the indemnified party in connection with the defense. The indemnified party will have the right to employ its own counsel in any such action, but the fees, expenses and other charges of such counsel will be at the expense of such indemnified party unless (1) the employment of counsel by the indemnified party has been authorized in writing by the indemnifying party, (2) the indemnified party has reasonably concluded (based on advice of counsel) that there may be legal defenses available to it or other indemnified parties that are different from or in addition to those available to the indemnifying party, (3) a conflict or potential conflict exists (based on advice of counsel to the indemnified party) between the indemnified party and the indemnifying party (in which case the indemnifying party will not have the right to direct the defense of such action on behalf of the indemnified party) or (4) the indemnifying party has not in fact employed counsel to assume the defense of such action within a reasonable time after receiving notice of the commencement of the action, in each of which cases the reasonable documented fees, disbursements and other charges of counsel will be at the expense of the indemnifying party or parties. It is understood that the indemnifying party or parties shall not, in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the reasonable documented fees, disbursements and other charges of more than one separate firm admitted to practice in such jurisdiction at any one time for all such indemnified party or parties. All such fees, disbursements and other charges will be reimbursed by the indemnifying party promptly as they are incurred. An indemnifying party will not, in any event, be liable for any settlement of any action or claim effected without its written consent. No indemnifying party shall, without the prior written consent of each indemnified party, settle or compromise or consent to the entry of any judgment in any pending or threatened claim, action or proceeding relating to the matters contemplated by this <u>Section 9</u> (whether or not any indemnified party is a party thereto), unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability arising or that may arise out of such claim, action or proceeding.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) <u>Contribution</u>. In order to provide for just and equitable contribution in circumstances in which the indemnification provided for in the foregoing paragraphs of this <u>Section 9</u> is applicable in accordance with its terms but for any reason is held to be unavailable from the Company or TD Cowen, the Company and TD Cowen will contribute to the total losses, claims, liabilities, expenses and damages (including any investigative, legal and other expenses reasonably incurred in connection with, and any amount paid in settlement of, any action, suit or proceeding or any claim asserted, but after deducting any contribution received by the Company from persons other than TD Cowen, such as persons who control the Company within the meaning of the Securities Act, officers of the Company who signed the Registration Statement and directors of the Company, who also may be liable for contribution) to which the Company and TD Cowen may be subject in such proportion as shall be appropriate to reflect the relative benefits received by the Company on the one hand and TD Cowen on the other. The relative benefits received by the Company on the one hand and TD Cowen on the other hand shall be deemed to be in the same proportion as the total Net Proceeds from the sale of the Placement Shares (before deducting expenses) received by the Company bear to the total compensation received by TD Cowen from the sale of Placement Shares on behalf of the Company. If, but only if, the allocation provided by the foregoing sentence is not permitted by applicable law, the allocation of contribution shall be made in such proportion as is appropriate to reflect not only the relative benefits referred to in the foregoing sentence but also the relative fault of the Company, on the one hand, and TD Cowen, on the other, with respect to the statements or omission that resulted in such loss, claim, liability, expense or damage, or action in respect thereof, as well as any other relevant equitable considerations with respect to such offering. Such relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or TD Cowen, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company and TD Cowen agree that it would not be just and equitable if contributions pursuant to this <u>Section 9(d)</u> were to be determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to herein. The amount paid or payable by an indemnified party as a result of the loss, claim, liability, expense, or damage, or action in respect thereof, referred to above in this <u>Section 9(d)</u> shall be deemed to include, for the purpose of this <u>Section 9(d)</u>, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim to the extent consistent with <u>Section 9(c)</u> hereof. Notwithstanding the foregoing provisions of this <u>Section 9(d)</u>, TD Cowen shall not be required to contribute any amount in excess of the commissions received by it under this Agreement and no person found guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this <u>Section 9(d)</u>, any person who controls a party to this Agreement within the meaning of the Securities Act, and any officers, directors, partners, employees or agents of TD Cowen, will have the same rights to contribution as that party, and each officer and each director of the Company who signed the Registration Statement will have the same rights to contribution as the Company, subject in each case to the provisions hereof. Any party entitled to contribution, promptly after receipt of notice of commencement of any action against such party in respect of which a claim for contribution may be made under this <u>Section 9(d)</u>, will notify any such party or parties from whom contribution may be sought, but the omission to so notify will not relieve that party or parties from whom contribution may be sought from any other obligation it or they may have under this <u>Section 9(d)</u> except to the extent that the failure to so notify such other party materially prejudiced the substantive rights or defenses of the party from whom contribution is sought. Except for a settlement entered into pursuant to the last sentence of <u>Section 9(c)</u> hereof, no party will be liable for contribution with respect to any action or claim settled without its written consent if such consent is required pursuant to <u>Section 9(c)</u> hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10. <u>Representations and Agreements to Survive Delivery</u>. The indemnity and contribution agreements contained in <u>Section 9</u> of this Agreement and all representations and warranties of the Company herein or in certificates delivered pursuant hereto shall survive, as of their respective dates, regardless of (i) any investigation made by or on behalf of TD Cowen, any controlling persons, or the Company (or any of their respective officers, directors or controlling persons), (ii) delivery and acceptance of the Placement Shares and payment therefor or (iii) any termination of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11. <u>Termination.</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) TD Cowen shall have the right by giving notice as hereinafter specified at any time to terminate this Agreement if (i) any Material Adverse Change, or any development that could reasonably be expected to result in a Material Adverse Change has occurred that, in the reasonable judgment of TD Cowen, may materially impair the ability of TD Cowen to sell the Placement Shares hereunder, (ii) the Company shall have failed, refused or been unable to perform any agreement on its part to be performed hereunder, (iii) any other condition of TD Cowen's obligations hereunder is not fulfilled, or (iv), any suspension or limitation of trading in the Placement Shares or in securities generally on Nasdaq shall have occurred. Any such termination shall be without liability of any party to any other party except that the provisions of <u>Section 7(g)</u> (Expenses), <u>Section 9</u> (Indemnification and Contribution), <u>Section 10</u> (Representations and Agreements to Survive Delivery), <u>Section 16</u> (Applicable Law; Consent to Jurisdiction) and <u>Section 17</u> (Waiver of Jury Trial) hereof shall remain in full force and effect notwithstanding such termination. If TD Cowen elects to terminate this Agreement as provided in this <u>Section 11(a)</u>, TD Cowen shall provide the required notice as specified in <u>Section 12</u> (Notices).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The Company shall have the right, by giving ten (10) days' notice as hereinafter specified to terminate this Agreement in its sole discretion at any time after the date of this Agreement. Any such termination shall be without liability of any party to any other party except that the provisions of <u>Section 7(g)</u>, <u>Section 9</u>, <u>Section 10</u>, <u>Section 16</u> and <u>Section 17</u> hereof shall remain in full force and effect notwithstanding such termination.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) TD Cowen shall have the right, by giving ten (10) days' notice as hereinafter specified to terminate this Agreement in its sole discretion at any time after the date of this Agreement. Any such termination shall be without liability of any party to any other party except that the provisions of <u>Section 7(g)</u>, <u>Section 9</u>, <u>Section 10</u>, <u>Section 16</u> and <u>Section 17</u> hereof shall remain in full force and effect notwithstanding such termination.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Unless earlier terminated pursuant to this <u>Section 11</u>, this Agreement shall automatically terminate upon the issuance and sale of all of the Placement Shares through TD Cowen on the terms and subject to the conditions set forth herein; *provided* that the provisions of <u>Section 7(g)</u>, <u>Section 9</u>, <u>Section 10</u>, <u>Section 16</u> and <u>Section 17</u> hereof shall remain in full force and effect notwithstanding such termination.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) This Agreement shall remain in full force and effect unless terminated pursuant to <u>Sections 11(a)</u>, <u>(b)</u>, <u>(c), or (d)</u> above or otherwise by mutual agreement of the parties; *provided, however,* that any such termination by mutual agreement shall in all cases be deemed to provide that <u>Section 7(g)</u>, <u>Section 9</u>, <u>Section 10</u>, <u>Section 16</u> and <u>Section 17</u> shall remain in full force and effect.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) Any termination of this Agreement shall be effective on the date specified in such notice of termination; *provided, however,* that such termination shall not be effective until the close of business on the date of receipt of such notice by TD Cowen or the Company, as the case may be. If such termination shall occur prior to the Settlement Date for any sale of Placement Shares, such Placement Shares shall settle in accordance with the provisions of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12. <u>Notices</u>. All notices or other communications required or permitted to be given by any party to any other party pursuant to the terms of this Agreement shall be in writing, unless otherwise specified in this Agreement, and if sent to TD Cowen, shall be delivered to TD Cowen at TD Securities (USA) LLC, 1 Vanderbilt Avenue, New York, NY 10017, fax no. [\*\*\*], Attention: Head of Equity Capital Markets, email: [\*\*\*]; or if sent to the Company, shall be delivered to Protara Therapeutics, Inc., 345 Park Avenue South, New York, New York 10010, Attention: Jesse Shefferman, Chief Executive Officer, and Mary Grendell, General Counsel, email: [\*\*\*] and [\*\*\*], with a copy to Kirkland & Ellis LLP, attention: Jennifer Lee P.C., email: jennifer.lee@kirkland.com. Each party to this Agreement may change such address for notices by sending to the parties to this Agreement written notice of a new address for such purpose. Each such notice or other communication shall be deemed given (i) when delivered personally or by verifiable facsimile transmission (with an original to follow) on or before 4:30 p.m., New York City time, on a Business Day (as defined below), or, if such day is not a Business Day on the next succeeding Business Day, (ii) on the next Business Day after timely delivery to a nationally-recognized overnight courier and (iii) on the Business Day actually received if deposited in the U.S. mail (certified or registered mail, return receipt requested, postage prepaid). For purposes of this Agreement, "**<u>Business Day</u>**" shall mean any day on which the Nasdaq and commercial banks in the City of New York are open for business.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13. <u>Successors and Assigns</u>. This Agreement shall inure to the benefit of and be binding upon the Company and TD Cowen and their respective successors and the affiliates, controlling persons, officers and directors referred to in <u>Section 9</u> hereof. References to any of the parties contained in this Agreement shall be deemed to include the successors and permitted assigns of such party. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and permitted assigns any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. Neither party may assign its rights or obligations under this Agreement without the prior written consent of the other party; *provided*, *however*, that TD Cowen may assign its rights and obligations hereunder to an affiliate of TD Cowen without obtaining the Company's consent.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;14. <u>Adjustments for Share Splits</u>. The parties acknowledge and agree that all share-related numbers contained in this Agreement shall be adjusted to take into account any share split, share dividend or similar event effected with respect to the Common Stock.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;15. <u>Entire Agreement; Amendment; Severability</u>. This Agreement (including all schedules and exhibits attached hereto and Placement Notices issued pursuant hereto) constitutes the entire agreement and supersedes all other prior and contemporaneous agreements and undertakings, both written and oral, among the parties hereto with regard to the subject matter hereof. Neither this Agreement nor any term hereof may be amended except pursuant to a written instrument executed by the Company and TD Cowen. In the event that any one or more of the provisions contained herein, or the application thereof in any circumstance, is held invalid, illegal or unenforceable as written by a court of competent jurisdiction, then such provision shall be given full force and effect to the fullest possible extent that it is valid, legal and enforceable, and the remainder of the terms and provisions herein shall be construed as if such invalid, illegal or unenforceable term or provision was not contained herein, but only to the extent that giving effect to such provision and the remainder of the terms and provisions hereof shall be in accordance with the intent of the parties as reflected in this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16. <u>Applicable Law; Consent to Jurisdiction</u>. This Agreement shall be governed by, and construed in accordance with, the internal laws of the State of New York without regard to the principles of conflicts of laws. Each party hereby irrevocably submits to the non-exclusive jurisdiction of the state and federal courts sitting in the City of New York, borough of Manhattan, for the adjudication of any dispute hereunder or in connection with any transaction contemplated hereby, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof (certified or registered mail, return receipt requested) to such party at the address in effect for notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;17. <u>Waiver of Jury Trial</u>. The Company and TD Cowen each hereby irrevocably waives any right it may have to a trial by jury in respect of any claim based upon or arising out of this Agreement or any transaction contemplated hereby.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18. <u>Absence of Fiduciary Relationship</u>*.* The Company acknowledges and agrees that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) TD Cowen has been retained solely to act as an arm's length contractual counterparty to the Company in connection with the sale of the Placement Shares contemplated hereby and that no fiduciary, advisory or agency relationship between the Company and TD Cowen has been created in respect of any of the transactions contemplated by this Agreement, irrespective of whether TD Cowen has advised or is advising the Company on other matters;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) the Company is capable of evaluating and understanding and understands and accepts the terms, risks and conditions of the transactions contemplated by this Agreement;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) the Company has been advised that TD Cowen and its affiliates are engaged in a broad range of transactions which may involve interests that differ from those of the Company and that TD Cowen has no obligation to disclose such interests and transactions to the Company by virtue of any fiduciary, advisory or agency relationship; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) the Company waives, to the fullest extent permitted by law, any claims it may have against TD Cowen, for breach of fiduciary duty or alleged breach of fiduciary duty and agrees that TD Cowen shall have no liability (whether direct or indirect) to the Company in respect of such a fiduciary claim or to any person asserting a fiduciary duty claim on behalf of or in right of the Company, including stockholders, partners, employees or creditors of the Company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19. <u>Counterparts</u>. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Delivery of an executed Agreement by one party to the other may be made by facsimile or other electronic transmission (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., www.docusign.com or www.echosign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20. <u>Recognition of the U.S. Special Resolution Regimes</u>.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) In the event that TD Cowen is a Covered Entity and becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from TD Cowen of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) In the event that TD Cowen is a Covered Entity and TD Cowen or a BHC Act Affiliate of TD Cowen becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against TD Cowen are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) For purposes of this Section 20; (a) "**<u>BHC Act Affiliate</u>**" has the meaning assigned to the term "affiliate" in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k), (b) "**<u>Covered Entity</u>**" means any of the following: (i) a "covered entity" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b); (ii) a "covered bank" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or (iii) a "covered FSI" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b), (c) "**<u>Default Right</u>**" has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable, and (d) "**<u>U.S. Special Resolution Regime</u>**" means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

**[Remainder of Page Intentionally Blank]**

If the foregoing correctly sets forth the understanding between the Company and TD Cowen, please so indicate in the space provided below for that purpose, whereupon this letter shall constitute a binding agreement between the Company and TD Cowen.

---

| | | |
|:---|:---|:---|
| Very truly yours, | Very truly yours, | Very truly yours, |
| **TD SECURITIES (USA) LLC** | **TD SECURITIES (USA) LLC** | **TD SECURITIES (USA) LLC** |
| By: | /s/ Michael Murphy | /s/ Michael Murphy |
|  | Name: | Michael Murphy |
|  | Title: | Managing Director |

---

---

| | |
|:---|:---|
| **ACCEPTED as of the date** | **ACCEPTED as of the date** |
| **first-above written:** | **first-above written:** |
| **PROTARA THERAPEUTICS, INC.** | **PROTARA THERAPEUTICS, INC.** |
| By: | /s/ Patrick Fabbio |
| Name: | Patrick Fabbio |
| Title: | Chief Financial Officer |

---

**<u>SCHEDULE 1</u>** 

**<u>form of PLACEMENT NOTICE</u>**

---

| | | |
|:---|:---|:---|
| From: | [ | ] |
| Cc: | [ | ] |
| To: | [ | ] |
| Subject: | TD Cowen At the Market Offering—Placement Notice | TD Cowen At the Market Offering—Placement Notice |

---

To Whom it May Concern:

Pursuant to the terms and subject to the conditions contained in the Sales Agreement between Protara Therapeutics, Inc. (the "**<u>Company</u>**"), and TD Securities (USA) LLC ("**<u>TD Cowen</u>**") dated May 13, 2026 (the "**<u>Agreement</u>**"), I hereby request on behalf of the Company that TD Cowen sell up to [ ] shares of the Company's common stock, par value $0.001 per share, at a minimum market price of $_______ per share. Sales should begin on the date of this Notice and shall continue until [DATE] [all shares are sold].

**<u>SCHEDULE 2</u>**

**<u>Notice Parties</u>**

**<u>Company</u>**

---

| | |
|:---|:---|
| Jesse Shefferman | Chief Executive Officer |
| Patrick Fabbio | Chief Financial Officer |
| Mary Grendell | Chief Legal and Compliance Officer |
| Hannah Fry | Vice President, Principal Accounting Officer, and Controller |

---

**<u>TD Cowen</u>**

---

| | |
|:---|:---|
| Michael J. Murphy | Managing Director |
| William Follis | Managing Director |
| Adriano Pierroz | Director |
| Megan Sanford | Associate |
| Sriya Patel | Analyst |

---

**<u>SCHEDULE 3</u>**

**<u>Compensation</u>**

TD Cowen shall be paid compensation up to 3.0% of the gross proceeds from the sales of Common Stock pursuant to the terms of this Agreement.

**<u>Exhibit 7(m)</u>**

**<u>OFFICER CERTIFICATE</u>**

The undersigned, the duly qualified and elected _______________________, of Protara Therapeutics, Inc. ("**<u>Company</u>**"), a Delaware corporation, does hereby certify in such capacity and on behalf of the Company, pursuant to <u>Section 7(m)</u> of the Sales Agreement dated May 13, 2026 (the "**<u>Sales Agreement</u>**") between the Company and TD Securities (USA) LLC, that to the best of the knowledge of the undersigned.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) The representations and warranties of the Company in <u>Section 6</u> of the Sales Agreement (A) to the extent such representations and warranties are subject to qualifications and exceptions contained therein relating to materiality or Material Adverse Change, are true and correct on and as of the date hereof with the same force and effect as if expressly made on and as of the date hereof, except for those representations and warranties that speak solely as of a specific date and which were true and correct as of such date, and (B) to the extent such representations and warranties are not subject to any qualifications or exceptions, are true and correct in all material respects as of the date hereof as if made on and as of the date hereof with the same force and effect as if expressly made on and as of the date hereof except for those representations and warranties that speak solely as of a specific date and which were true and correct as of such date; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) The Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied pursuant to the Sales Agreement at or prior to the date hereof.

---

| | |
|:---|:---|
| By: |  |
|  | Name: |
|  | Title: |

---

Date:<u> </u>

## Exhibit 5.1

**Exhibit 5.1**

![](ea028998301_ex5-1img1.jpg)

601 Lexington Avenue New York, NY 10022 United States +1 212 446 4800 www.kirkland.com Facsimile:<br> +1 212 446 4900

May 13, 2026

Protara Therapeutics, Inc.

345 Park Avenue South, Third Floor

New York, New York 10010

Ladies and Gentlemen:

We are acting as special counsel to Protara Therapeutics, Inc., a Delaware corporation (the *"**Company**"*), in connection with the preparation and filing by the Company of a shelf registration statement on Form S-3 (as amended from time to time, the "***Registration Statement***") with the Securities and Exchange Commission (the "***Commission***") under the Securities Act of 1933, as amended (the "***Securities Act***").

The Registration Statement relates to the issuance and sale from time to time, pursuant to Rule 415 of the General Rules and Regulations promulgated under the Securities Act, of an amount up to $300,000,000 of (i) shares of common stock of the Company, par value $0.001 per share (the "***Common Stock***"); (ii) shares of preferred stock of the Company (the "***Preferred Stock***"); (iii) one or more series of debt securities of the Company (the "***Debt Securities***"); and (iv) warrants to purchase Common Stock, Preferred Stock or Debt Securities (the "***Warrants***" and, collectively with the Common Stock, the Preferred Stock and the Debt Securities, the "***Securities***"), in one or more offerings from time to time on a delayed or continuous basis.

We are also acting as special counsel for the Company in connection with the sales agreement prospectus supplement included in the Registration Statement (the "Sales Agreement Prospectus") covering the offering, issuance and sale of shares of Common Stock having an aggregate offering price of up to $100,000,000 (the "Sales Agreement Shares") under a Sales Agreement, dated May 13, 2026, between the Company and TD Securities (USA) LLC (the "Sales Agreement").

In connection with this opinion, we have examined originals, or copies certified or otherwise identified to our satisfaction, of such documents, corporate records and other instruments as we have deemed necessary for the purposes of this opinion, including (i) the corporate and organizational documents of the Company, including the Sixth Amended and Restated Certificate of Incorporation of the Company, as amended by that certain Certificate of Amendment and that certain Second Certificate of Amendment (the "***Certificate of Incorporation***") and the Second Amended and Restated Bylaws of the Company, (ii) the Certificate of Designation of Preferences, Rights and Limitations of Series 1 Convertible Preferred Stock, as amended (the "***Certificate of Designations***"), (iii) the Certificate Amendment (as defined below), (iv) minutes and records of the corporate proceedings of the Company with respect to the issuance of the Securities, (v) the Registration Statement and (vi) the Sales Agreement.

For purposes of this opinion, we have assumed the authenticity of all documents submitted to us as originals, the conformity to the originals of all documents submitted to us as copies and the authenticity of the originals of all documents submitted to us as copies. We have also assumed the legal capacity of all natural persons, the genuineness of the signatures of persons signing all documents in connection with which this opinion is rendered, the authority of such persons signing on behalf of the parties thereto and the due authorization, execution and delivery of all documents by the parties thereto (other than, with respect to due authorization, the Company). We have also assumed the number of shares of Common Stock or Preferred Stock to be offered and sold under the Registration Statement will not exceed the number of Common Stock or Preferred Stock authorized in the Company's Certificate of Incorporation. We have not independently established or verified any facts relevant to the opinions expressed herein, but have relied upon statements and representations of the officers and other representatives of the Company and others as to factual matters.

![](ea028998301_ex5-1img1.jpg)

Protara Therapeutics, Inc.

May 13, 2026

We have also assumed that:

&nbsp;&nbsp;&nbsp;&nbsp;i. the Registration Statement and any amendments thereto (including any post-effective amendments) will be
effective and will comply with all applicable laws at the time the Securities are offered or issued as contemplated by the Registration
Statement;

&nbsp;&nbsp;&nbsp;&nbsp;ii. other than for the Sales Agreement Shares, a prospectus supplement or term sheet (each, a
 "  ***Prospectus Supplement***") will have been prepared and filed with the Commission, along with any exhibits
 necessary under the rules and regulations of the Commission, describing the Securities offered thereby and will comply with all
 applicable laws;

&nbsp;&nbsp;&nbsp;&nbsp;iii. all Securities will be issued and sold in compliance with applicable federal and state securities
 laws and in the manner and for the consideration stated in the Registration Statement, the applicable Prospectus Supplement
 and the Sales Agreement Prospectus;

&nbsp;&nbsp;&nbsp;&nbsp;iv. the Securities will be issued and sold in the form and containing the terms set forth in the Registration
Statement, the applicable Prospectus Supplement, the Sales Agreement Prospectus and the relevant indenture or warrant agreement, as applicable (each, a "  ***Governing Document*** ");

&nbsp;&nbsp;&nbsp;&nbsp;v. at the time of the issuance, sale and delivery of each Security, (1) the authorization of such Security
by the Company will not have been modified or rescinded, and there will not have occurred any change in law affecting the validity, legally
binding character or enforceability of such Security and (2) the issuance, sale and delivery of such Security, the terms of such Security,
the terms of the applicable Governing Document, and the compliance by the Company with the terms of such Security and the terms of the
applicable Governing Document, will not violate any applicable law, any agreement or instrument then binding upon the Company, or cause
default thereunder, as applicable, or any restriction imposed by any court or governmental body having jurisdiction over the Company;

&nbsp;&nbsp;&nbsp;&nbsp;vi. the Company will have obtained any legally required consents, approvals, authorizations and other orders
of the Commission and any other regulatory authorities necessary to issue and sell the Securities being offered and to execute and deliver
the applicable Governing Document;

&nbsp;&nbsp;&nbsp;&nbsp;vii. the indentures, and any supplements, amendments or certificates required to issue any Debt Securities
will have been duly authorized, executed and delivered by the Company and any applicable trustee;

&nbsp;&nbsp;&nbsp;&nbsp;viii. such indentures and applicable trustee will have been qualified under the Trust Indenture Act of 1939,
as amended;

![](ea028998301_ex5-1img1.jpg)

Protara Therapeutics, Inc.

May 13, 2026

&nbsp;&nbsp;&nbsp;&nbsp;ix. other than for the Sales Agreement Shares, a definitive purchase, underwriting, distribution, sales
 agent or similar agreement, if applicable (each, a "  ***Purchase Agreement*** "), with respect to any Securities
 offered or issued, will have been duly authorized and validly executed and delivered by the Company and the other parties
 thereto;

&nbsp;&nbsp;&nbsp;&nbsp;x. any Securities issuable upon conversion, exchange, or exercise of any Security being offered or issued
will be duly authorized, created, and, if appropriate, reserved for issuance upon such conversion, exchange, or exercise, and that the
number of Securities to be offered and sold under the Registration Statement will not exceed the number of Securities authorized in the
Company's Certificate of Incorporation, if applicable.

Based upon and subject to the foregoing qualifications, assumptions and limitations and the further limitations set forth below, we are of the opinion that:

&nbsp;&nbsp;&nbsp;&nbsp;1. Other than with respect to the Sales Agreement Shares, when, as and if (a) the shares of Common Stock to be offered and sold by the Company have been duly authorized
by appropriate corporate or organizational action of the Company and (b) such shares of Common Stock have been issued, sold and delivered
against payment therefor (which shall be in an amount at least equal to the par value of the shares being issued and sold) in accordance
with such authorization, the applicable Purchase Agreement and applicable law (including any shares of Common Stock delivered upon exercise,
conversion or exchange of any Securities that are exercisable, convertible into or exchangeable for shares of Common Stock pursuant to
the terms thereof, assuming that such Securities have been duly authorized and established in accordance with applicable law, appropriate
corporate or organizational action has been taken to authorize the form, terms, issuance and delivery of such Securities and such Securities
have been issued, sold and delivered against payment therefor by duly authorized officers in accordance with such authorization, the applicable
Purchase Agreement, any applicable Governing Document and applicable law), such shares of Common Stock will be validly issued, fully paid
and non-assessable;

&nbsp;&nbsp;&nbsp;&nbsp;2. When, as and if (a) any particular series of Preferred Stock has been duly authorized and established
in accordance with applicable law, (b) appropriate corporate or organizational action has been taken by the Company to authorize the form,
terms, issuance and delivery of shares of such Preferred Stock (including the filing of any required certificate of designation, amendment
or supplement to the organizational documents of the Company), and (c) the shares of such Preferred Stock have been issued, sold and delivered
against payment therefor (which shall be in an amount at least equal to the par value of the shares being issued and sold) in accordance
with such authorization, the applicable Purchase Agreement and applicable law (including any shares of Preferred Stock delivered upon
exercise, conversion or exchange of any Securities that are exercisable, convertible into or exchangeable for shares of Preferred Stock
pursuant to the terms thereof, assuming that such Securities have been duly authorized and established in accordance with applicable law,
appropriate corporate or organizational action has been taken to authorize the form, terms, issuance and delivery of such Securities and
such Securities have been issued, sold and delivered against payment therefor by duly authorized officers in accordance with such authorization,
the applicable Purchase Agreement, any applicable Governing Document and applicable law), such shares of Preferred Stock will be validly
issued, fully paid and non-assessable;

![](ea028998301_ex5-1img1.jpg)

Protara Therapeutics, Inc.

May 13, 2026

&nbsp;&nbsp;&nbsp;&nbsp;3. When, as and if (a) any Debt Securities have been duly authorized and duly established in accordance with
the applicable indenture and applicable law, (b) appropriate corporate or organizational action has been taken to authorize the form,
terms, execution and delivery of such Debt Securities (and any required amendment or supplement to the applicable indenture or any required
certificate pursuant to the applicable indenture) and the applicable indenture (and any required amendment or supplement to the applicable
indenture or any required certificate pursuant to the applicable indenture) has been duly executed and delivered in accordance with such
authorization, and (c) the applicable Debt Securities have been duly executed, attested, issued and delivered by duly authorized officers
against payment in accordance with such authorization, the applicable indenture, the applicable Purchase Agreement and applicable law,
and duly authenticated by the applicable trustee in accordance with the applicable indenture, (i) such Debt Securities (including any
Debt Securities duly executed and delivered upon exercise, conversion or exchange of any Securities that are exercisable, convertible
into or exchangeable for Debt Securities pursuant to the terms thereof, assuming that such Securities have been duly authorized and established
in accordance with applicable law, appropriate corporate or organizational action has been taken to authorize the form, terms, issuance
and delivery of such Securities and such Securities have been issued, sold and delivered against payment therefor by duly authorized officers
in accordance with such authorization, the applicable Purchase Agreement, any applicable Governing Document and applicable law) will be
validly issued and will constitute binding obligations of the Company enforceable against the Company in accordance with their terms;
and

&nbsp;&nbsp;&nbsp;&nbsp;4. When, as and if (a) any Warrants have been duly authorized and duly established in accordance with applicable
law, (b) appropriate corporate action has been taken by the Company to authorize the form, terms, execution and delivery of the applicable
warrant agreement and the Warrants and the applicable warrant agreement has been duly executed and delivered by the applicable warrant
agent and the Company in accordance with such authorization, (c) Warrants with such terms have been duly executed, attested, issued and
delivered by the applicable warrant agent and/or duly authorized officers of the Company against payment in accordance with such authorization,
the applicable Purchase Agreement, applicable warrant agreement and applicable law, and (d) the Securities issuable upon exercise of such
Warrants have been duly authorized and reserved for issuance by all necessary corporate or organizational action and, in the case of Warrants
to purchase Debt Securities, when the terms of such Debt Securities have been duly authorized and duly established in accordance with
the terms of the applicable indenture, applicable law and the appropriate corporate or organizational action and, in the case of Warrants
to purchase Common Stock or Preferred Stock, that the exercise price of such Warrants consists of legal consideration in excess of the
par value of such securities, such Warrants will be validly issued and will constitute binding obligations of the Company enforceable
against the Company in accordance with their terms.

&nbsp;&nbsp;&nbsp;&nbsp;5. With respect to the Sales Agreement Shares, when the Sales Agreement Shares have been issued and paid for in accordance with the terms
and conditions of the Sales Agreement, the Sales Agreement Shares have been duly authorized, validly issued, fully paid and nonassessable.

Our opinions expressed above that any particular contract constitutes a valid and binding obligation or is enforceable in accordance with its terms (each, an "***enforceability opinion***") is subject to: (i) the effect of bankruptcy, insolvency, fraudulent conveyance and other similar laws and judicially developed doctrines in this area, such as substantive consolidation and equitable subordination; (ii) the effect of general principles of equity; and (iii) other commonly recognized statutory and judicial constraints on enforceability, including statutes of limitations. "General principles of equity" include but are not limited to: (A) principles limiting the availability of specific performance and injunctive relief; (B) principles which limit the availability of a remedy under certain circumstances where another remedy has been elected; (C) principles requiring reasonableness, good faith and fair dealing in the performance and enforcement of an agreement by the party seeking enforcement; (D) principles which may permit a party to cure a material failure to perform its obligations; and (E) principles affording equitable defenses such as waiver, laches and estoppel. It is possible that terms in a particular contract covered by our enforceability opinion may not prove enforceable for reasons other than those explicitly cited in this opinion should an actual enforcement action be brought, but (subject to all the exceptions, qualifications, exclusions and other limitations contained in this opinion) such unenforceability would not in our opinion prevent the party entitled to enforce that contract from realizing the principal benefits purported to be provided to that party by the terms in that contract which are covered by our enforceability opinion.

![](ea028998301_ex5-1img1.jpg)

Protara Therapeutics, Inc.

May 13, 2026

Our advice is limited to the laws of the State of New York and the General Corporation Law of the State of Delaware. None of the opinions or other advice contained in this letter considers or covers any federal, state or foreign securities (or "blue sky") laws or regulations. We have assumed the Governing Documents will be governed by, and construed in accordance with, the laws of the State of New York.

We express no opinion with respect to the enforceability of (i) consents to, or restrictions upon, judicial relief or jurisdiction or venue; (ii) waivers of rights or defenses with respect to stay, extension or usury laws; (iii) advance waivers of claims, defenses, rights granted by law, or notice, opportunity for hearing, evidentiary requirements, statutes of limitation, trial by jury or at law, or other procedural rights; (iv) waivers of broadly or vaguely stated rights; (v) provisions for exclusivity, election or cumulation of rights or remedies; (vi) provisions authorizing or validating conclusive or discretionary determinations; (vii) grants of setoff rights; (viii) provisions for the payment of attorneys' fees where such payment is contrary to law or public policy; (ix) proxies, powers and trusts; (x) restrictions upon non-written modifications and waivers; (xi) provisions prohibiting, restricting, or requiring consent to assignment or transfer of any right or property; (xii) any provision to the extent it requires any party to indemnify any other person against loss in obtaining the currency due following a court judgment in another currency; (xiii) provisions for liquidated damages, default interest, late charges, monetary penalties, make-whole premiums or other economic remedies to the extent such provisions are deemed to constitute a penalty; and (xiv) any rights to contribution or indemnification which may be violative of public policy underlying any law, rule or regulation (including federal or state securities law, rule or regulation) or the enforceability of any so called fraudulent conveyance or fraudulent transfer "savings clause" (and any similar provision in any other document or agreement) to the extent such provisions purport to limit the amount of the obligations of any party or the right to contribution of any other party with respect to such obligations. In addition, we express no opinion with respect to (i) whether acceleration of the Debt Securities may affect the collectability of that portion of the stated principal amount thereof that might be determined to constitute unearned interest thereon, (ii) compliance with laws relating to permissible rates of interest or (iii) the creation, validity, perfection or priority of any security interest or lien.

To the extent that the obligations of the Company under any Governing Document may be dependent on such matters, we assume for purposes of this opinion that the applicable Governing Document counterparty is duly organized, validly existing and in good standing under the laws of its jurisdiction of organization; that the applicable Governing Document counterparty is duly qualified to engage in the activities contemplated by the applicable Governing Document; that the applicable Governing Document has been duly authorized, executed and delivered by the applicable Governing Document counterparty and constitutes the legally valid and binding obligations of such Governing Document counterparty, enforceable against such Governing Document counterparty in accordance with its terms; that the applicable Governing Document counterparty is in compliance, generally and with respect to acting as trustee, warrant agent or other Governing Document counterparty, as the case may be, under the applicable Governing Document, with all applicable laws and regulations; and that the applicable Governing Document Counterparty has the requisite organizational and legal power and authority to perform its obligations under the applicable Governing Document.

We hereby consent to the filing of this opinion with the Commission as Exhibit 5.1 to the Registration Statement. We also consent to the reference to our firm under the heading "Legal Matters" in the Registration Statement and the Sales Agreement Prospectus. In giving this consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission.

This opinion is limited to the specific issues addressed herein, and no opinion may be inferred or implied beyond that expressly stated herein. The Securities may be issued from time to time on a delayed or continuous basis, and this opinion is limited to the laws, including the rules and regulations, as in effect on the date hereof, which laws are subject to change with possible retroactive effect. This opinion speaks only as of the date hereof and we assume no obligation to revise or supplement this opinion after the date hereof.

This opinion is furnished to you in connection with the filing of the Registration Statement and in accordance with the requirements of Item 601(b)(5)(i) of Regulation S-K promulgated under the Securities Act, and may be relied upon by you and by persons entitled to rely upon it pursuant to the applicable provisions of the Securities Act.

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|:---|
| Very truly yours, |
| /s/ Kirkland & Ellis LLP |
| KIRKLAND & ELLIS LLP |

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## Exhibit 23.1

**Exhibit 23.1**

Consent of Independent Registered Public Accounting Firm

We consent to the reference to our firm under the caption "Experts" in this Registration Statement (Form S-3) and related Prospectus of Protara Therapeutics, Inc. for the registration of its common stock, preferred stock, debt securities and warrants and to the incorporation by reference therein of our report dated March 5, 2026, with respect to the consolidated financial statements of Protara Therapeutics, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2025, filed with the Securities and Exchange Commission.

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|:---|
| /s/ Ernst & Young LLP |
| New York, New York |
| May 13, 2026 |

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## Ex-Filing

?xml version='1.0' encoding='ASCII'? Filing Fee Exhibit

**Ex-Filing Fees**

**CALCULATION OF FILING FEE TABLES**

**S-3**

**Protara Therapeutics, Inc.**

**Table 1: Newly Registered and Carry Forward Securities**

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| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Line Item Type** | **Security Type** | **Security Class Title** | **Notes** | **Fee Calculation<br> or Carry Forward Rule** | **Amount Registered** | **Proposed Maximum Offering<br> Price Per Unit** | **Maximum Aggregate Offering Price** | **Fee Rate** | **Amount of Registration Fee** | **Carry Forward Form Type** | **Carry Forward File Number** | **Carry Forward Initial Effective Date** | **Filing Fee Previously Paid in Connection with<br>Unsold Securities<br>to be<br>Carried Forward** |
| *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* |
| Fees to be Paid | Equity | Common Stock, $0.001 par value | (1) | 457(o) |  | $| $— | 0.0001381 | $— |  |  |  | $— |
| Fees to be Paid | Equity | Preferred Stock, $0.001 par value | (2) | 457(o) |  |  |  | 0.0001381 |  |  |  |  |  |
| Fees to be Paid | Debt | Debt Securities | (3) | 457(o) |  |  |  | 0.0001381 |  |  |  |  |  |
| Fees to be Paid | Other | Warrants | (4) | 457(o) |  |  |  | 0.0001381 |  |  |  |  |  |
| Fees to be Paid | Unallocated (Universal) Shelf |  | (5) | 457(o) |  |  | 189085862.13 | 0.0001381 | 26112.76 |  |  |  |  |
| *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* | *Carry Forward Securities* |
| Carry Forward Securities | Equity | Common Stock, $0.001 par value | (6) | 415(a)(6) |  |  |  |  |  | S-3 | 333-275290 | 11/14/2023 |  |
| Carry Forward Securities | Equity | Preferred Stock, $0.001 par value | (7) | 415(a)(6) |  |  |  |  |  | S-3 | 333-275290 | 11/14/2023 |  |
| Carry Forward Securities | Debt | Debt Securities | (8) | 415(a)(6) |  |  |  |  |  | S-3 | 333-275290 | 11/14/2023 |  |
| Carry Forward Securities | Other | Warrants | (9) | 415(a)(6) |  |  |  |  |  | S-3 | 333-275290 | 11/14/2023 |  |
| Carry Forward Securities | Unallocated (Universal) Shelf |  | (10) | 415(a)(6) |  | $| $110914137.87 |  | $— | S-3 | 333-275290 | 11/14/2023 | $5074.70 |
| Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | $300000000.00 |  | 26112.76 |  |  |  |  |
| Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: |  |  | 0.00 |  |  |  |  |
| Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: |  |  | 0.00 |  |  |  |  |
| Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: |  |  | $26112.76 |  |  |  |  |

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**__________________________________________ Offering Note(s)**

&nbsp;&nbsp;&nbsp;&nbsp;(1) This registration statement covers the registration of such indeterminate number of (a) shares of common stock, (b) shares of preferred stock, (c) debt securities and (d) warrants to purchase shares of common stock, shares of preferred stock or debt securities of the registrant, as may be offered and sold from time to time by the registrant. In no event will the aggregate offering price of all types of securities issued by the registrant pursuant to this registration statement exceed $300,000,000.00. In addition, pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions.

&nbsp;&nbsp;&nbsp;&nbsp;(2) This registration statement covers the registration of such indeterminate number of (a) shares of common stock, (b) shares of preferred stock, (c) debt securities and (d) warrants to purchase shares of common stock, shares of preferred stock or debt securities of the registrant, as may be offered and sold from time to time by the registrant. In no event will the aggregate offering price of all types of securities issued by the registrant pursuant to this registration statement exceed $300,000,000.00. In addition, pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions.

&nbsp;&nbsp;&nbsp;&nbsp;(3) This registration statement covers the registration of such indeterminate number of (a) shares of common stock, (b) shares of preferred stock, (c) debt securities and (d) warrants to purchase shares of common stock, shares of preferred stock or debt securities of the registrant, as may be offered and sold from time to time by the registrant. In no event will the aggregate offering price of all types of securities issued by the registrant pursuant to this registration statement exceed $300,000,000.00. In addition, pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions.

&nbsp;&nbsp;&nbsp;&nbsp;(4) This registration statement covers the registration of such indeterminate number of (a) shares of common stock, (b) shares of preferred stock, (c) debt securities and (d) warrants to purchase shares of common stock, shares of preferred stock or debt securities of the registrant, as may be offered and sold from time to time by the registrant. In no event will the aggregate offering price of all types of securities issued by the registrant pursuant to this registration statement exceed $300,000,000.00. In addition, pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions.

&nbsp;&nbsp;&nbsp;&nbsp;(5) This registration statement covers the registration of such indeterminate number of (a) shares of common stock, (b) shares of preferred stock, (c) debt securities and (d) warrants to purchase shares of common stock, shares of preferred stock or debt securities of the registrant, as may be offered and sold from time to time by the registrant. In no event will the aggregate offering price of all types of securities issued by the registrant pursuant to this registration statement exceed $300,000,000.00. In addition, pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions. The registration fee has been calculated pursuant to Rule 457(o) under the Securities Act based on the proposed maximum aggregate offering price of the shares to be sold. The registrant has determined to include in this Registration Statement $110,914,137.87 of unsold securities previously registered on the registrant's registration statement on Form S-3 (File No. 333-275290) (the "Prior Registration Statement"), which was originally filed with the Securities and Exchange Commission (the "SEC") on November 3, 2023, and declared effective by the SEC on November 14, 2023 (the "Unsold Securities"), which remain unsold as of the date hereof. Pursuant to Rule 415(a)(6) under the Securities Act, the filing fee relating to such Unsold Securities under the Prior Registration Statement, which was applied to the Prior Registration Statement, will continue to be applied to such Unsold Securities registered pursuant to this Registration Statement. Accordingly, the "Amount of Registration Fee" for the offering above reflects only the filing fee attributable to the $189,085,862.13 of securities newly registered on this Registration Statement.

&nbsp;&nbsp;&nbsp;&nbsp;(6) Pursuant to Rule 415(a)(6) under the Securities Act, the securities registered pursuant to this registrant statement include $110,914,137.87 of Unsold Securities. The registrant previously applied a fee of $32,730 in connection with the filing of the Prior Registration Statement, of which $5,074.70 relates to $110,914,137.87 of the Unsold Securities. The previously applied filing fee relating to such Unsold Securities under the Prior Registration Statement will continue to be applied to such Unsold Securities registered on this registration statement. In accordance with Rule 415(a)(5) and Rule 415(a)(6), the registrant may continue to offer and sell the securities covered by the Prior Registration Statement during the grace period afforded by Rule 415(a)(5). To the extent that, after the filing date hereof and prior to effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement pursuant to Rule 415(a)(6), the Registrant will identify in a pre-effective amendment to this Registration Statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this Registration Statement pursuant to Rule 415(a)(6) and the updated amount of securities to be registered on this Registration Statement, if any. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of the Unsold Securities under the Prior Registration Statement will expire upon the earlier of (i) the effective date of this Registration Statement or (ii) May 2, 2027 because 180 days from the third anniversary of the initial effective date of the Prior Registration Statement will have elapsed and all offerings thereunder have been completed or terminated. $189,085,862.13 of securities were sold by the registrant under the Prior Registration Statement.

&nbsp;&nbsp;&nbsp;&nbsp;(7) Pursuant to Rule 415(a)(6) under the Securities Act, the securities registered pursuant to this registrant statement include $110,914,137.87 of Unsold Securities. The registrant previously applied a fee of $32,730 in connection with the filing of the Prior Registration Statement, of which $5,074.70 relates to $110,914,137.87 of the Unsold Securities. The previously applied filing fee relating to such Unsold Securities under the Prior Registration Statement will continue to be applied to such Unsold Securities registered on this registration statement. In accordance with Rule 415(a)(5) and Rule 415(a)(6), the registrant may continue to offer and sell the securities covered by the Prior Registration Statement during the grace period afforded by Rule 415(a)(5). To the extent that, after the filing date hereof and prior to effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement pursuant to Rule 415(a)(6), the Registrant will identify in a pre-effective amendment to this Registration Statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this Registration Statement pursuant to Rule 415(a)(6) and the updated amount of securities to be registered on this Registration Statement, if any. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of the Unsold Securities under the Prior Registration Statement will expire upon the earlier of (i) the effective date of this Registration Statement or (ii) May 2, 2027 because 180 days from the third anniversary of the initial effective date of the Prior Registration Statement will have elapsed and all offerings thereunder have been completed or terminated. $189,085,862.13 of securities were sold by the registrant under the Prior Registration Statement.

&nbsp;&nbsp;&nbsp;&nbsp;(8) Pursuant to Rule 415(a)(6) under the Securities Act, the securities registered pursuant to this registrant statement include $110,914,137.87 of Unsold Securities. The registrant previously applied a fee of $32,730 in connection with the filing of the Prior Registration Statement, of which $5,074.70 relates to $110,914,137.87 of the Unsold Securities. The previously applied filing fee relating to such Unsold Securities under the Prior Registration Statement will continue to be applied to such Unsold Securities registered on this registration statement. In accordance with Rule 415(a)(5) and Rule 415(a)(6), the registrant may continue to offer and sell the securities covered by the Prior Registration Statement during the grace period afforded by Rule 415(a)(5). To the extent that, after the filing date hereof and prior to effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement pursuant to Rule 415(a)(6), the Registrant will identify in a pre-effective amendment to this Registration Statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this Registration Statement pursuant to Rule 415(a)(6) and the updated amount of securities to be registered on this Registration Statement, if any. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of the Unsold Securities under the Prior Registration Statement will expire upon the earlier of (i) the effective date of this Registration Statement or (ii) May 2, 2027 because 180 days from the third anniversary of the initial effective date of the Prior Registration Statement will have elapsed and all offerings thereunder have been completed or terminated. $189,085,862.13 of securities were sold by the registrant under the Prior Registration Statement.

&nbsp;&nbsp;&nbsp;&nbsp;(9) Pursuant to Rule 415(a)(6) under the Securities Act, the securities registered pursuant to this registrant statement include $110,914,137.87 of Unsold Securities. The registrant previously applied a fee of $32,730 in connection with the filing of the Prior Registration Statement, of which $5,074.70 relates to $110,914,137.87 of the Unsold Securities. The previously applied filing fee relating to such Unsold Securities under the Prior Registration Statement will continue to be applied to such Unsold Securities registered on this registration statement. In accordance with Rule 415(a)(5) and Rule 415(a)(6), the registrant may continue to offer and sell the securities covered by the Prior Registration Statement during the grace period afforded by Rule 415(a)(5). To the extent that, after the filing date hereof and prior to effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement pursuant to Rule 415(a)(6), the Registrant will identify in a pre-effective amendment to this Registration Statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this Registration Statement pursuant to Rule 415(a)(6) and the updated amount of securities to be registered on this Registration Statement, if any. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of the Unsold Securities under the Prior Registration Statement will expire upon the earlier of (i) the effective date of this Registration Statement or (ii) May 2, 2027 because 180 days from the third anniversary of the initial effective date of the Prior Registration Statement will have elapsed and all offerings thereunder have been completed or terminated. $189,085,862.13 of securities were sold by the registrant under the Prior Registration Statement.

&nbsp;&nbsp;&nbsp;&nbsp;(10) Pursuant to Rule 415(a)(6) under the Securities Act, the securities registered pursuant to this registrant statement include $110,914,137.87 of Unsold Securities. The registrant previously applied a fee of $32,730 in connection with the filing of the Prior Registration Statement, of which $5,074.70 relates to $110,914,137.87 of the Unsold Securities. The previously applied filing fee relating to such Unsold Securities under the Prior Registration Statement will continue to be applied to such Unsold Securities registered on this registration statement. In accordance with Rule 415(a)(5) and Rule 415(a)(6), the registrant may continue to offer and sell the securities covered by the Prior Registration Statement during the grace period afforded by Rule 415(a)(5). To the extent that, after the filing date hereof and prior to effectiveness of this Registration Statement, the registrant sells any Unsold Securities under the Prior Registration Statement pursuant to Rule 415(a)(6), the Registrant will identify in a pre-effective amendment to this Registration Statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this Registration Statement pursuant to Rule 415(a)(6) and the updated amount of securities to be registered on this Registration Statement, if any. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of the Unsold Securities under the Prior Registration Statement will expire upon the earlier of (i) the effective date of this Registration Statement or (ii) May 2, 2027 because 180 days from the third anniversary of the initial effective date of the Prior Registration Statement will have elapsed and all offerings thereunder have been completed or terminated. $189,085,862.13 of securities were sold by the registrant under the Prior Registration Statement.