# EDGAR Filing Document

**Accession Number:** 0001861657
**File Stem:** 0001641172-25-021046
**Filing Date:** 2025-7
**Character Count:** 182488
**Document Hash:** f9919c9e6fb8192f935d2fb236d8b6a8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001641172-25-021046.hdr.sgml**: 20250725

**ACCESSION NUMBER**: 0001641172-25-021046

**CONFORMED SUBMISSION TYPE**: 424B5

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250725

**DATE AS OF CHANGE**: 20250725

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tharimmune, Inc.
- **CENTRAL INDEX KEY:** 0001861657
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 842642541
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 424B5
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-270684
- **FILM NUMBER:** 251152355

**BUSINESS ADDRESS:**
- **STREET 1:** 1200 ROUTE 22 EAST
- **CITY:** BRIDGEWATER
- **STATE:** NJ
- **ZIP:** 08807
- **BUSINESS PHONE:** 302-743-2995

**MAIL ADDRESS:**
- **STREET 1:** 245 MAIN STREET
- **STREET 2:** SUITE 204
- **CITY:** CHESTER
- **STATE:** NJ
- **ZIP:** 07930

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Tharimmune, Inc
- **DATE OF NAME CHANGE:** 20230925

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Hillstream BioPharma Inc.
- **DATE OF NAME CHANGE:** 20210511

**Filed Pursuant to Rule 424(b)(5)**

**Registration Statement No.: 333-270684**

**The information contained in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not a solicitation of an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.**

**SUBJECT TO COMPLETION, DATED JULY 23, 2025**

**PROSPECTUS SUPPLEMENT**

**(To Prospectus dated March 24, 2023)**

**974,241 Units consisting of Shares of Common Stock and/or Prefunded Warrants and Warrants to purchase Shares of Common Stock**

![](form424b5_001.jpg)

**Tharimmune, Inc.**

Pursuant to this prospectus supplement and the accompanying prospectus, we are offering in a registered direct offering to certain purchasers 974,241 units (the "Units"), with each Units consisting of one share of common stock, par value $0.0001 per share ("Common Stock"), and/or one pre-funded warrant to purchase one share of Common Stock at a price of $0.001 (the "Pre-Funded Warrant"); and one warrant to purchase one share of Common Stock at a price of $1.66 per share (the "Common Warrant"). Each Unit is being sold at a price of $1.786 per Unit.

The Common Warrants and the shares of our Common Stock issuable upon the exercise of the Common Warrants are being offered pursuant to the exemptions provided in Section 4(a)(2) under the Securities Act of 1933, as amended (the "Securities Act"), and Rule 506(b) promulgated thereunder, and they are not being offered pursuant to this prospectus supplement and the accompanying prospectus.

Our Common Stock is listed on the Nasdaq Capital Market ("Nasdaq") under the symbol "THAR." On July 23, 2025, the last reported sale price of our Common Stock on Nasdaq was $1.66 per share.

We are an "emerging growth company" and a "smaller reporting company" under the federal securities laws and, as such, are subject to reduced public company reporting requirements.

We have retained President Street Global, LLC ("President Street" or the "placement agent") to act as our exclusive placement agent in connection with the securities offered by this prospectus supplement and the accompanying prospectus. The placement agent has no obligation to buy any of the securities from us or to arrange for the purchase or sale of any specific number or dollar amount of securities. We have agreed to pay the placement agent the placement agent fees set forth in the table below, which assumes that we sell all of the securities we are offering. See "Plan of Distribution" beginning on page <u>S-12</u> of this prospectus supplement for more information regarding these arrangements.

As of the date of this prospectus supplement, the aggregate market value of our outstanding shares of Common Stock held by non-affiliates was $6.4 million based on 4,220,920 shares of Common Stock outstanding, of which 899,723 shares were held by affiliates, based on a price of $1.94 per share, which was the last reported sale price of our Common Stock on Nasdaq on June 30, 2025. As of the date of this prospectus supplement, we have sold securities with a value of $350,193 pursuant to General Instruction I.B.6. of Form S-3 during the prior 12 calendar month period that ends on, and includes, the date of this prospectus supplement. Pursuant to General Instruction I.B.6 of Form S-3, in no event will we sell securities in a public primary offering with a value exceeding one-third of our public float in any 12-month period so long as our public float remains below $75.0 million.

**Investing in our securities involves a high degree of risk. Before making any decision to invest in our securities, you should carefully consider the information disclosed in this this prospectus supplement and the accompanying prospectus, including the information under "<u>Risk Factors</u>" beginning on page <u>S-6</u> of this prospectus supplement, as well as the information, including the risk factors contained or incorporated by reference to this prospectus supplement and the accompanying prospectus as described under the heading "Where You Can Find More Information."**

**NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

There is no arrangement for funds to be received in escrow, trust, or similar arrangement.

---

| | | |
|:---|:---|:---|
|  | **Per share of<br> Common Stock** | **Total** |
| Offering Price | $1.786 | $1740000 |
| Placement Agent Fees <sup>(1)</sup> | $0.125 | $121800 |
| Proceeds, before expenses, to us | $1.661 | $1618200 |

---

(1) We have agreed to pay a
 cash fee to the placement agent equal to 7% of the aggregate gross proceeds raised in this offering. In addition, President Street
 shall receive a cash fee of 7% of the gross proceeds received by the Company upon the exercise of the common warrants issued in the
 placement (collectively, the "Cash Fee"). See "Plan of Distribution" beginning on
 page <u>S-12</u> of this prospectus supplement for additional information regarding compensation paid to the placement
 agent.

We expect that delivery of the shares of Common Stock being offered pursuant to this prospectus supplement and the accompanying base prospectus will be made on or about July 25, 2025, subject to satisfaction of customary closing conditions.

**President Street Global**

The date of this prospectus supplement is July 23, 2025.

**TABLE OF CONTENTS**

---

| | |
|:---|:---|
|  | **Page** |
| **PROSPECTUS SUPPLEMENT** |  |
| [ABOUT THIS PROSPECTUS SUPPLEMENT](#B5_001) | S-1 |
| [CAUTIONARY NOTE CONCERNING FORWARD-LOOKING STATEMENTS](#B5_002) | S-2 |
| [PROSPECTUS SUPPLEMENT SUMMARY](#B5_003) | S-3 |
| [THE OFFERING](#B5_004) | S-5 |
| [RISK FACTORS](#B5_005) | S-6 |
| [USE OF PROCEEDS](#B5_006) | S-7 |
| [DIVIDEND POLICY](#B5_007) | S-8 |
| [DILUTION](#B5_008) | S-9 |
| [DESCRIPTION OF THE SECURITIES WE ARE OFFERING](#B5_009) | S-10 |
| [PLAN OF DISTRIBUTION](#B5_010) | S-12 |
| [LEGAL MATTERS](#B5_011) | S-14 |
| [EXPERTS](#B5_012) | S-14 |
| [WHERE YOU CAN FIND MORE INFORMATION](#B5_013) | S-14 |
| [INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE](#B5_014) | S-15 |

---

---

| | |
|:---|:---|
|  | **Page** |
| **PROSPECTUS: DATED MARCH 24, 2023** |  |
| [ABOUT THIS PROSPECTUS](#a_002) | 1 |
| [SUMMARY](#a_003) | 2 |
| [RISK FACTORS](#a_004) | 7 |
| [DISCLOSURE REGARDING FORWARD LOOKING STATEMENTS](#a_005) | 7 |
| [USE OF PROCEEDS](#a_006) | 8 |
| [DESCRIPTION OF CAPITAL STOCK](#a_007) | 8 |
| [DESCRIPTION OF DEBT SECURITIES](#a_008) | 10 |
| [DESCRIPTION OF WARRANTS](#a_009) | 17 |
| [DESCRIPTION OF UNITS](#a_010) | 19 |
| [LEGAL OWNERSHIP OF SECURITIES](#a_011) | 20 |
| [PLAN OF DISTRIBUTION](#a_012) | 23 |
| [LEGAL MATTERS](#a_013) | 26 |
| [EXPERTS](#a_014) | 26 |
| [WHERE YOU CAN FIND MORE INFORMATION](#a_015) | 26 |
| [INFORMATION INCORPORATED BY REFERENCE](#a_016) | 27 |

---

**You should rely only on the information we have provided or incorporated by reference in this prospectus or in any prospectus supplement. We have not authorized anyone to provide you with information different from that contained or incorporated by reference in this prospectus or in any prospectus supplement. This prospectus and any prospectus supplement is an offer to sell only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. You should assume that the information contained in this prospectus and in any prospectus supplement is accurate only as of their respective dates and that any information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus or any prospective supplement or any sale of securities. The registration statement, including the exhibits and the documents incorporated herein by reference, can be read on the website of the Securities and Exchange Commission, or "SEC," or on our corporate website at *www.tharimmune.com* as set forth in this prospectus under the heading "Available Information."**

*This prospectus supplement is not an offer to sell or a solicitation of an offer to buy securities in any jurisdiction in which such offer or solicitation is illegal.*

i

**ABOUT THIS PROSPECTUS SUPPLEMENT**

All references to the terms the "Company," "we," "us" or "our" in this prospectus supplement refer to Tharimmune, Inc., a Delaware corporation, unless the context requires otherwise.

This prospectus supplement and the accompanying base prospectus are part of a registration statement that we filed with the Securities and Exchange Commission (the "SEC") on Form S-3 (File No. 333-270684) utilizing a "shelf" registration process. Each time we conduct an offering to sell securities under the accompanying base prospectus we will provide a prospectus supplement that will contain specific information about the terms of that offering, including the price, the amount of securities being offered, and the plan of distribution. The shelf registration statement was initially filed with the SEC on March 17, 2023, and was declared effective on March 24, 2023. This prospectus supplement describes the specific details regarding this offering and may add, update or change information contained in the accompanying base prospectus. The accompanying base prospectus provides general information about us and our securities, some of which, such as the section entitled "Plan of Distribution," may not apply to this offering. This prospectus supplement and the accompanying base prospectus are an offer to sell only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. We are not making offers to sell or solicitations to buy our securities in any jurisdiction in which an offer or solicitation is not authorized or in which the person making that offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer or solicitation.

If information in this prospectus supplement is inconsistent with the accompanying base prospectus or the information incorporated by reference with an earlier date, you should rely on this prospectus supplement. This prospectus supplement, together with the accompanying base prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying base prospectus, include all material information relating to this offering. You should assume that the information appearing in this prospectus supplement, the accompanying base prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus is accurate only as of the respective dates of those documents. Our business, financial condition, results of operations and prospects may have changed since those dates. **You should carefully read this prospectus supplement, the accompanying base prospectus and the information and documents incorporated by reference herein and therein before making an investment decision. See "Where You Can Find More Information" in this prospectus supplement and in the accompanying base prospectus.**

We have not, and the placement agent has not, authorized anyone to provide you with information that is different from that contained in this prospectus supplement, the accompanying base prospectus or in any free writing prospectus we may authorize to be delivered or made available to you. When you make a decision about whether to invest in our securities, you should not rely upon any information other than the information contained in or incorporated by reference into this prospectus supplement, the accompanying base prospectus or in any free writing prospectus that we may authorize to be delivered or made available to you. Neither the delivery of this prospectus supplement and the accompanying base prospectus nor the sale of our securities means that the information contained in this prospectus supplement, the accompanying base prospectus or any free writing prospectus is correct after the date of the respective dates of such documents.

For investors outside the United States: We have not, and the placement agent has not, taken any action that would permit this offering or possession or distribution of this prospectus supplement or the accompanying base prospectus in any jurisdiction where action for that purpose is required, other than in the United States. Persons outside the United States who come into possession of this prospectus supplement or the accompanying base prospectus must inform themselves about, and observe any restrictions relating to, the offering of the securities covered hereby and the distribution of this prospectus supplement and the accompanying base prospectus outside the United States.

This prospectus supplement and the accompanying base prospectus contain 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 full text of the actual documents, some of which have been filed or will be filed with the SEC and incorporated by reference herein. See "Where You Can Find More Information" in this prospectus supplement. We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference into this prospectus supplement or the accompanying base prospectus were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.

This prospectus supplement and the accompanying base prospectus contain and incorporate by reference certain market data and industry statistics and forecasts that are based on studies sponsored by us, independent industry publications and other publicly available information. Although we believe these sources are reliable, estimates as they relate to projections involve numerous assumptions, are subject to risks and uncertainties, and are subject to change based on various factors, including those discussed under "Risk Factors" in this prospectus supplement and the accompanying base prospectus and under similar headings in the documents incorporated by reference herein and therein. Accordingly, investors should not place undue reliance on this information.

**CAUTIONARY NOTE CONCERNING FORWARD-LOOKING STATEMENTS**

This prospectus and the documents incorporated by reference herein contain or may contain forward looking statements that involve risks and uncertainties. All statements other than statements of historical fact contained in this prospectus, including statements regarding future events, our future financial performance, business strategy and plans and objectives of management for future operations, are forward-looking statements. We have attempted to identify forward-looking statements by terminology including "anticipates," "believes," "can," "continue," "could," "estimates," "expects," "intends," "may," "plans," "potential," "predicts," "should," or "will," or the negative of these terms or other comparable terminology. Although we do not make forward looking statements unless we believe we have a reasonable basis for doing so, we cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, including the risks outlined under "Risk Factors" or elsewhere in this prospectus, which may cause our or our industry's actual results, levels of activity, performance or achievements expressed or implied by these forward-looking statements.

Forward-looking statements should not be read as a guarantee of future performance or results, and will not necessarily be accurate indications of the times at, or by which, that performance or those results will be achieved. Forward-looking statements are based on information available at the time they are made and/or management's good faith belief as of that time with respect to future events, and are subject to risks and uncertainties that could cause actual performance or results to differ materially from what is expressed in or suggested by the forward-looking statements.

Forward-looking statements speak only as of the date they are made. You should not put undue reliance on any forward-looking statements. Except as required by law, we assume no obligation to update forward-looking statements to reflect actual results, changes in assumptions, or changes in other factors affecting forward-looking information, except to the extent required by applicable securities laws. If we do update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

**PROSPECTUS SUPPLEMENT SUMMARY**

*The following summary highlights selected information contained elsewhere in or incorporated by reference into this prospectus supplement and the accompanying prospectus. The summary may not contain all of the information that you should consider before investing in our securities. You should read the entire prospectus supplement and accompany prospectus, the registration statement of which this prospectus is a part, and the information incorporated by reference into this prospectus supplement in their entirety, including the "Risk Factors" and our financial statements and the related notes incorporated by reference into this prospectus, before purchasing our securities in this offering. See the "<u>Risk Factors</u>" section of this prospectus supplement beginning on page <u>S-6</u> for a discussion of the risks involved in investing in our securities. Except as otherwise indicated herein or as the context otherwise requires, references in this prospectus supplement to the "Company," "we," "us," and "our" refer to Tharimmune, Inc.*

**Corporate Summary**

We are a clinical-stage biotechnology company developing therapeutic candidates in immunology and inflammation with high unmet need. On November 3, 2023, we entered into a patent license agreement (the "Avior License Agreement") with Avior Inc. d/b/a Avior Bio, LLC ("Avior") pursuant to which we received an exclusive sublicensable right and license to Licensed Patent Rights and Licensed Technology to, among other things, Develop, have Developed, make, have made, use, sell, import, export and commercialize TH104 and TH103 and to practice the Licensed Technology in connection with the foregoing, throughout the world (each as defined in the Avior License Agreement). In February 2023, the U.S. Food and Drug Administration ("FDA") approved an investigational new drug ("IND") application for TH104. TH104 has a dual mechanism of action by affecting multiple receptors, known to suppress chronic, debilitating pruritus or "uncontrollable itching." With respect to TH104, we originally intended to first seek approval for the treatment of moderate-to-severe chronic pruritus in patients with primary biliary cholangitis ("PBC"), an orphan rare form of liver disease with no known cure in which more than 70% of patients suffer from debilitating chronic pruritic. In March 2025, we engaged and received positive feedback from the FDA regarding the additional proposed indication of temporary prophylaxis of respiratory and/or nervous system depression in military personnel and chemical incident responders entering an area contaminated with high-potency opioids ("PrHPO"), for which we submitted a Pre-Investigational New Drug Application ("PIND"). With respect to our PIND for this additional proposed indication for TH104, we received positive feedback from the FDA regarding a regulatory pathway that will allow us to submit a 505(b)(2) New Drug Application ("NDA") for TH104. The FDA advised that we will need to perform additional nonclinical studies (*i.e.,* in vitro toxicology studies), but the FDA confirmed that it does not believe any additional clinical trials will be required to define the prophylactic dosing window prior to IND or NDA submission for this indication, which we expect will be the lead program for us. We intend to pursue the pruritus in PBC indication subsequent to the nearer term opportunity of filing an NDA for PrHPO. We intend to conduct a capital efficient strategy to file an NDA for PrHPO, which involves actively progressing its Chemistry, Manufacturing, and Controls ("CMC") plan to meet the stringent requirements for filing an NDA with the FDA. This comprehensive plan encompasses all aspects of the manufacturing process, quality control measures, and product stability to ensure the consistent production of a high-quality buccal film formulation known as TH104.

On September 11, 2024, we entered into a Patent License Agreement (the "Intract Agreement") with Intract Pharma Limited ("Intract"), pursuant to which, we exclusively licensed INT-023/TH023, an oral anti-Tumor Necrosis Factor-alpha (TNF-α) monoclonal antibody infliximab. Infliximab is a purified, recombinant DNA-derived chimeric IgG monoclonal antibody protein that contains both murine and human components that inhibit tumor TNF-α. Under the terms of the Intract Agreement, we licensed global development and commercialization rights (outside of South Korea) to Intract's Soteria® and Phloral® delivery platform along with an existing supply agreement for infliximab to be used in the oral product development program.

We are also developing an early-stage pipeline of novel therapeutic candidates targeting validated high value immuno-oncology ("IO") targets including human epidermal growth factor ("EGF") receptor 2 ("HER2"), human EGF receptor 3 ("HER3") and programmed cell death protein 1 ("PD-1"). We are developing antibodies including bispecific antibodies, antibody drug conjugates ("ADCs") and small molecular weight bovine-derived "knob" domains which have the potential to target and bind more tightly to "undruggable" epitopes better than full sized antibodies. We are advancing HS1940, a bispecific biologic against both PD-1 and vascular endothelial growth receptor ("VEGF") antibody which targets both receptors. In addition, we anticipate that HS3215, a HER2/HER3 bispecific antibody will progress into preclinical studies in 2025.

**Corporate Information**

Our principal executive offices are located at 34 Shrewsbury Avenue, Red Bank, NJ 07701 and our telephone number at that address is (732) 889-3111. We maintain a corporate website at *www.tharimmune.com*. None of the information on or accessible through our websites is incorporated by reference in, or constitutes a part of, this prospectus or in any other filings with, or in any information furnished or submitted to, the SEC.

**Implications of Being a Smaller Reporting Company and Emerging Growth Company**

We are a "smaller reporting company," as defined in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), meaning that the market value of our shares held by non-affiliates was less than $700 million and our annual revenue was less than $100 million during the most recently completed fiscal year. We may continue to be a smaller reporting company if either (i) the market value of our shares held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of our shares held by non-affiliates is less than $700 million. As a smaller reporting company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company, we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation. Additionally, as a smaller reporting company, we may continue to take advantage of the exception from compliance with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended. If investors consider our shares of common stock less attractive as a result of our election to use the scaled-back disclosure permitted for smaller reporting companies, there may be a less active trading market for our common shares and our share price may be more volatile.

We are also an emerging growth company as defined in the Jumpstart Our Business Startups Act of 2012. We will remain an emerging growth company until the earliest to occur of: (i) the last day of the fiscal year in which we have more than $1.235 billion in annual revenues; (ii) the date we qualify as a "large accelerated filer," with at least $700 million of equity securities held by non-affiliates; (iii) the issuance, in any three-year period, by us of more than $1.0 billion in non-convertible debt securities; and (iv) the last day of the fiscal year ending after the fifth anniversary of our first sale of common equity securities pursuant to a U.S. registration.

As an emerging growth company, we may take advantage of certain exemptions from various reporting requirements that are applicable to other publicly traded entities that are not emerging growth companies. These exemptions include: (i) the option to present only two years of audited financial statements and related discussion in the section titled "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our filings with the SEC; (ii) not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended; (iii) not being required to comply with any requirement that may be adopted by the Public Company Accounting Oversight Board, or PCAOB, regarding mandatory audit firm rotation or a supplement to the auditor's report providing additional information about the audit and the financial statements; (iv) not being required to submit certain executive compensation matters to stockholder advisory votes, such as "say-on-pay," "say-on-frequency," and "say-on-golden parachutes"; and (v) not being required to disclose certain executive compensation related items such as the correlation between executive compensation and performance and comparisons of the chief executive officer's compensation to median employee compensation.

**The Offering**

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| | |
|:---|:---|
| **Securities offered by us** | 974,241 Units, consisting of (i) 414,331 shares of Common Stock, par value $0.0001 per share (the "Common Stock") and 559,910 pre-funded warrants to acquire shares of Common Stock (the "Pre-Funded Warrants"), and (ii) 974,241 warrants to acquire shares of Common Stock at the exercise price of $1.66 per share (the "Common Warrant"), at the price of $1.786 per unit comprised of one share of Common Stock or Pre-Funded Warrant and Common Warrant. |
| **Common Stock outstanding before this offering<sup>(1)</sup>**<br>| 4,220,920 shares of Common Stock. |
| **Common Stock outstanding after this offering<sup>(2)</sup>** | 5,609,492 shares of Common Stock. |
| **Use of proceeds** | We intend to use the net proceeds from this offering for working capital and general corporate purposes. Please see the section entitled "Use of Proceeds" on page <u>S-7</u> of this prospectus supplement for a more detailed discussion. |
| **Risk factors** | An investment in our securities involves a high degree of risk. Please see the section entitled "Risk Factors" beginning on page <u>S-6</u> of this prospectus supplement as well as the other information included in or incorporated by reference into this prospectus supplement and the accompanying prospectus for a discussion of factors that you should consider carefully before making an investment decision. |
| **Dividend policy** | We have never declared or paid any cash dividends on our Common Stock. We do not anticipate paying any cash dividends in the foreseeable future. |
| **National securities exchange listing** | Our Common Stock is currently listed on the Nasdaq Capital Market under the symbol "THAR." |
| **Common Warrants** | The Common Warrants and shares of Common Stock issuable upon exercise of the Common Warrants are not being registered under the Securities Act of 1933, as amended, or the Securities Act, and are not being offered pursuant to this prospectus supplement and the accompanying prospectus, but are being offered pursuant to the exemption provided in Section 4(a)(2) under the Securities Act and Rule 506(b) promulgated thereunder. See "Description of The Securities We Are Offering" beginning on page S-10 of this prospectus supplement. |

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(1) The number of shares of our Common Stock to be outstanding after the offering is based on 4,220,920 shares of Common Stock outstanding as of July 23, 2025 and excludes, as of that date, the following:

- 242,788 shares of Common Stock issuable upon exercise of options outstanding at a weighted average exercise price of $32.75 per share under the Company's option plans;

- 522,379 shares of Common Stock reserved for future issuance under the 2023 Stock Incentive Plan; and

- 4,609,106 shares of Common Stock issuable upon exercise of warrants outstanding at a weighted average exercise price of $2.41 per share.

(2) Includes 414,331 shares of Common Stock issued in this offering, 559,910 shares of Common Stock issuable upon the exercise of Pre-Funded Warrants, and 414,331 shares of Common Stock issuable upon the exercise of Common Warrants issued in this offering.

**RISK FACTORS**

*Before making an investment decision, you should carefully consider the risks described in this prospectus supplement, together with all of the other information incorporated by reference into this prospectus supplement and the accompanying prospectus, including the risks described in our most recent Annual Report on Form 10-K, as well as any amendments thereto reflected in subsequent filings with the SEC, including our audited consolidated financial statements and corresponding management's discussion and analysis. The risks mentioned below are presented as of the date of this prospectus supplement and we expect that these will be updated from time to time in our periodic and current reports filed with or furnished to the SEC, as applicable, which are incorporated herein by reference. Please refer to these subsequent reports for additional information relating to the risks associated with investing in our securities.*

*Our business, financial condition or results of operations could be materially adversely affected by any of these risks. Additional risks not presently known to us or that we currently deem immaterial may also impair our business operations. The trading price of our Common Stock could decline due to any of these risks, and you may lose all or part of your investment. This prospectus supplement, the accompanying prospectus and the incorporated documents also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks mentioned below. Forward-looking statements included in this prospectus supplement are based on information available to us on the date hereof, and all forward-looking statements in documents incorporated by reference are based on information available to us as of the date of each such document. We are under no obligation to update or alter such forward-looking statements whether as a result of new information, future events or otherwise, other than as required by applicable securities legislation.*

**Risks Relating to This Offering**

***Sales of our Common Stock by stockholders may have an adverse effect on the then prevailing market price of our Common Stock.***

Sales of a substantial number of our Common Stock in the public market following this offering could cause the market price of our Common Stock to decline and could impair our ability to raise capital through the sale of additional equity securities. We cannot predict the effect that future sales of our Common Stock or other equity or equity-related securities would have on the market price of our Common Stock.

***Management will have broad discretion as to the use of the net proceeds from this offering, and we may not use the proceeds effectively.***

We intend to use the net proceeds from the sale of securities by us in this offering for working capital and general corporate purposes. Our management will have broad discretion as to the application of the net proceeds from this offering and could use them for purposes other than those contemplated at the time of this offering, as described below in the section entitled "Use of Proceeds," or in ways that do not necessarily improve our operating results or enhance the value of our Common Stock. Our stockholders may not agree with the manner in which our management chooses to allocate and spend the net proceeds. Our failure to use these funds effectively could have a material adverse effect on our business and could cause the price of our securities to decline.

***Investors in this offering will suffer immediate and substantial dilution in the net tangible book value per Common Stock.***

A purchaser of securities in this offering will experience immediate and substantial dilution. Please see the section entitled "Dilution" for a more detailed discussion of the dilution you will incur in this offering.

***We may require additional funding through further issuances of our Common Stock or other securities, which may negatively affect the market price of our Common Stock.***

To operate our business, we may need to raise additional capital through sales of our Common Stock, securities exercisable for or convertible into our Common Stock or debt securities pursuant to which interest and/or principal

payments may be satisfied through the issuance of our Common Stock. Future sales of such securities or our Common Stock could adversely affect the prevailing market price of our Common Stock and our ability to raise capital in the future, and may cause you to incur additional dilution.

***We do not intend to pay dividends on our Common Stock so any returns will depend on appreciation in the price of our Common Stock.***

We have never declared or paid any cash dividends on our Common Stock. We currently anticipate that we will retain future earnings, if any, for the development, operation and expansion of our business and do not anticipate declaring or paying any cash dividends for the foreseeable future. Any return to stockholders will, therefore, be limited to the appreciation of their respective shares. There is no guarantee that our Common Stock will appreciate in value or maintain the price at which you purchased them.

**USE OF PROCEEDS**

We estimate that the net proceeds from this offering will be approximately $1.74 million, after deducting the placement agent fees and commissions and estimated offering expenses payable by us. We currently expect to use the net proceeds from this offering for working capital and general corporate purposes.

This expected use of the net proceeds from this offering represents our intentions based upon our current plans and business conditions, and our management will retain broad discretion as to the ultimate allocation of the proceeds. We may temporarily invest funds that we do not immediately need for these purposes in investment securities or use them to make payments on our borrowings.

**DIVIDEND POLICY**

We have not declared or paid cash dividends on our common stock since our inception. Even if our board of directors ("Board") decides to pay dividends, the form, the frequency, and the amount will depend upon our future operations and earnings, capital requirements and surplus, general financial condition, contractual restrictions and other factors that the Board may deem relevant. While our Board will make any future decisions regarding dividends, as circumstances surrounding us change, it currently does not anticipate that we will pay any cash dividends in the foreseeable future.

**DILUTION**

If you invest in our securities in this offering, your interest will be diluted immediately to the extent of the difference between the effective offering price per share and the as-adjusted net tangible book value per share of Common Stock after this offering.

The net tangible book value of our Common Stock as of March 31, 2025, was approximately ($0.8 million), or approximately ($0.39) per share of Common Stock. Net tangible book value per share represents the amount of our total tangible assets less total liabilities divided by the total number of our Common Stock outstanding as of March 31, 2025.

After giving effect to the issuance of 2,112,167 shares of our Common Stock issued since March 31, 2025, our proforma net tangible book value as of March 31, 2025 would have been approximately $1.7 million, or approximately $0.40 per share of Common Stock.

After giving effect to the sale of shares of Common Stock in this offering (representing 441,331 shares of Common Stock and 559,910 pre-funded warrants) at an offering price of $1.786 per share, our as adjusted net tangible book value as of March 31, 2025, would have been approximately $3.3 million, or approximately $0.63 per share of Common Stock. This represents an immediate increase in pro forma net tangible book value of approximately $0.23 per share of Common Stock to our existing security holders and an immediate dilution in pro forma as adjusted net tangible book value of approximately $1.156 per share of Common Stock to the purchaser of securities in this offering, as illustrated by the following table:

---

| | | |
|:---|:---|:---|
| Offering price per share Common Stock |  | $1.786 |
| Net tangible book value per share of Common Stock as of March 31, 2025 | $(0.39) |  |
| Increase in pro forma net tangible book value per share of Common Stock attributable to June 2025 PIPE Offering pro forma adjustment | $0.79 |  |
| Pro forma net tangible book value per share of Common Stock as of March 31, 2025 | $0.40 |  |
| Increase in pro forma net tangible book value per share of Common Stock attributable to the offering | $0.23 |  |
| Pro forma as adjusted net tangible book value per share of Common Stock as of March 31, 2025, after giving effects to this offering |  | $0.63 |
| Dilution in pro forma as adjusted net tangible book value per share Common Stock to new investors participating in this offering |  | $1.156 |

---

To the extent that outstanding exercisable options or warrants are exercised, you may experience further dilution. In addition, we may need to raise additional capital and to the extent that we raise additional capital by issuing equity or convertible debt securities your ownership will be further diluted.

**DESCRIPTION OF THE SECURITIES WE ARE OFFERING**

We are offering 974,241 Units at an offering price of $1.786 per Unit, with each Unit consisting of one share of common stock, par value $0.0001 per share ("Common Stock"), and/or one pre-funded warrant to purchase one share of Common Stock at a price of $0.001 (the "Pre-Funded Warrant"); and one warrant to purchase one share of Common Stock at a price of $1.66 per share (the "Common Warrant").

**Common Stock**

The material terms and provisions of our Common Stock and each other class of our securities that qualifies or limits our Common Stock are described under the caption "Description of Common Stock" starting on page 8 of the accompanying prospectus.

**Pre-Funded Warrants**

The material terms and provisions of our Pre-Funded Warrants and each other class of our securities that qualifies or limits our Common Stock are described under the caption "Description of Warrants" starting on page 17 of the accompanying prospectus.

**Common Warrants**

The material terms and provisions of our Common Warrants and each other class of our securities that qualifies or limits our Common Stock are described under the caption "Description of Warrants" starting on page 17 of the accompanying prospectus.

The Common Warrants and shares of Common Stock issuable upon the exercise of the Common Warrants are being offered pursuant to the exemptions provided in Section 4(a)(2) under the Securities Act of 1933, as amended, or the Securities Act, and Rule 506(b) promulgated thereunder, and they are not being offered pursuant to this prospectus supplement and the accompanying prospectus. None of the shares issued upon exercise of the Common Warrants are or will be listed for trading on any national securities exchange. In connection with the offer and sale of the Common Warrants issued in this offering described above, we agreed to file a registration statement within 30 calendar days after signing the Securities Purchase Agreement. If we fail to meet the filing deadlines and other requirements set forth in the Securities Purchase Agreement we may be subject to certain liquidated damages.

Accordingly, the holders of the Common Warrants may exercise each of the Common Warrants and sell the shares of Common Stock issuable upon the exercise of such security only pursuant to an effective registration statement under the Securities Act covering the resale of those shares, an exemption under Rule 144 under the Securities Act, or another applicable exemption under the Securities Act.

All purchasers are required to be "accredited investors" as such term is defined in Rule 501(a) under the Securities Act.

The following is a summary of the material terms of the Common Warrants being issued in this offering. This summary is subject to and qualified in its entirety by the form of Common Warrant, which will be filed with the SEC as an exhibit to a Current Report on Form 8-K in connection with this offering and incorporated by reference into the registration statement of which this prospectus supplement and the accompanying prospectus form a part.

*Duration and Exercise Price*. Each Common Warrant will have an initial exercise price per share equal to $1.66 per share. The Common Warrants are exercisable beginning six months after the date hereof (the "Initial Exercise Date") and on or prior to 5:00 p.m. on the five (5) year anniversary of the Initial Exercise Date (the "Termination Date"). The exercise price and number of shares of our Common Stock issuable upon exercise is subject to appropriate adjustment in the event of stock dividends, stock splits, recapitalization, reorganizations or similar events affecting our Common Stock and the exercise price.

 

*Exercisability.* The Common Warrants are exercisable, at the option of each holder, in whole or in part, by delivering to us a duly executed exercise notice accompanied by payment in full for the number of shares of our Common Stock purchased upon such exercise (except in the case of a cashless exercise as discussed below). A holder (together with its affiliates) may not exercise any portion of the Common Warrants to the extent that the holder would own more than 4.99% (or, upon election of the holder, 9.99%) of the outstanding Common Stock immediately after exercise, except that upon at least 61 days' prior notice from the holder to us, the holder may increase the amount of ownership of outstanding stock after exercising the holder's Common Warrants up to 9.99% of the number of shares of our Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the Common Warrants. No fractional shares of our Common Stock will be issued in connection with the exercise of a Common Warrant. In lieu of fractional shares, we will round to the next whole share. 

*Cashless Exercise.* If at the time of exercise of a Common Warrant there is no effective registration statement registering, or the prospectus contained therein is not available for the issuance of the shares to be issued upon exercise of the Common Warrant, then, in lieu of making the cash payment otherwise contemplated to be made to us upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive upon such exercise the net number of shares of our Common Stock determined according to a formula set forth in the Common Warrants.

*Transferability*. Subject to applicable laws, a Common Warrant may be transferred upon notice to us in writing and surrender of the Common Warrant to us together with the appropriate instruments of transfer.

*Exchange Listing*. There is no established public trading market for the Common Warrants, and we do not expect a market to develop. In addition, we do not intend to list the Common Warrants on any securities exchange or nationally recognized trading system. Without an active trading market, the liquidity of the Common Warrants will be limited.

*Right as a Stockholder*. Except as otherwise provided in the Common Warrants or by virtue of such holder's ownership of shares of our Common Stock, the holders of the Common Warrants do not have the rights or privileges of holders of our Common Stock, including any voting rights, until they exercise their Common Warrants.

*Fundamental Transaction*. In the event of a fundamental transaction, as described in the form of Common Warrant, and generally including any reorganization, recapitalization or reclassification of our Common Stock, the sale, transfer or other disposition of all or substantially all of our properties or assets, our consolidation or merger with or into another person, the acquisition of greater than 50% of our outstanding Common Stock, or any person or group becoming the beneficial owner of greater than 50% of the voting power represented by our outstanding Common Stock, the holders of the Common Warrants will be entitled to receive upon exercise of the Common Warrants the kind and amount of securities, cash or other property that the holders would have received had they exercised the Common Warrants immediately prior to such fundamental transaction. Notwithstanding the foregoing, within 30 days after the consummation of a fundamental transaction, the holder of the Common Warrants may require us to repurchase any Common Warrants from the holder of such warrant pursuant to the terms and conditions described in the form of Common Warrant by paying to the holder an amount equal to the Black Scholes Value (as defined in each Common Warrant) of the remaining unexercised portion of the Common Warrant on the date of the fundamental transaction.

**PLAN OF DISTRIBUTION**

President Street Global, LLC (the "Placement Agent") have agreed to act as the exclusive placement agent in connection with this offering. The Placement Agent is not purchasing or selling any of the shares of our Common Stock offered by this prospectus supplement but will use their best efforts to arrange for the sale of the securities offered by this prospectus supplement.

We have entered into a securities purchase agreement directly with the institutional investors in connection with this offering. The offering is expected to close on or about July 25, 2025, subject to customary closing conditions without further notice.

**Fees and Expenses**

We have agreed to pay the Placement Agent an aggregate Placement Agents' fee of up to $121,800 which represents 7% of the aggregate purchase price of the Units sold in this offering. The following table shows the per share and total cash Placement Agents' fees we will pay to the Placement Agent in connection with the sale of the shares of our Common Stock offered pursuant to this prospectus supplement and the accompanying prospectus.

---

| | | |
|:---|:---|:---|
|  | **Per Share** | **Total** |
| Public Offering Price and Proceeds, Before Expenses, to us<sup>(1)</sup> | $1.786 | $1740000 |
| Placement Agent Fees<sup>(2)</sup> | $0.125 | $121800 |
| Proceeds before expenses | $1.661 | $1618200 |

---

(1) Does not include up to $0.7 million in proceeds to the Company upon exercise of the Common Warrants.

(2) Placement Agent will receive up to $48,145 in additional fees upon exercise of the Common Warrants.

**Determination of Offering Price**

The public offering price of the Units we are offering was negotiated between us and the investors, in consultation with the Placement Agent based on the trading of our Common Stock prior to the offering, among other things. Other factors considered in determining the public offering price of our Common Stock we are offering include the history and prospects of the Company, the stage of development of our business, our business plans for the future and the extent to which they have been implemented, an assessment of our management, general conditions of the securities markets at the time of the offering and such other factors as were deemed relevant.

**Indemnification**

We have agreed to indemnify the Placement Agent against liabilities under the Securities Act. We have also agreed to contribute to payments the Placement Agent may be required to make in respect of such liabilities.

The Placement Agent may be deemed to be an underwriter within the meaning of Section 2(a)(11) of the Securities Act, and any commissions received by it and any profit realized on the resale of the shares sold by it while acting as principal might be deemed to be underwriting discounts or commissions under the Securities Act. As an underwriter, the Placement Agent would be required to comply with the requirements of the Securities Act and the Exchange Act of 1934 (the "Exchange Act"), including, without limitation, Rule 415(a)(4) under the Securities Act and Rule 10b-5 and Regulation M under the Exchange Act. These rules and regulations may limit the timing of purchases and sales of shares by the Placement Agent acting as principal. Under these rules and regulations, the Placement Agent may not engage in any stabilization activity in connection with our securities; and may not bid for or purchase any of our securities or attempt to induce any person to purchase any of our securities, other than as permitted under the Exchange Act, until it has completed its participation in the distribution.

**Electronic Distribution**

This prospectus supplement may be made available in electronic format on websites or through other online services maintained by the Placement Agent, or by an affiliate. Other than this prospectus in electronic format, the information on the Placement Agent's website and any information contained in any other website maintained by the Placement Agent or by an affiliate is not part of this prospectus or the registration statement of which this prospectus supplement is a part, has not been approved and/or endorsed by us or the Placement Agent, and should not be relied upon by investors.

The foregoing does not purport to be a complete statement of the terms and conditions of the placement agency agreement or the securities purchase agreement, copies of which are incorporated by reference into the registration statement of which this prospectus is a part. See "Where You Can Find More Information."

**Regulation M Restrictions**

The Placement Agent may be deemed to be an underwriter within the meaning of Section 2(a)(11) of the Securities Act, and any commissions received by it and any profit realized on the resale of any shares of Common Stock sold by it while acting as a principal might be deemed to be underwriting discounts or commissions under the Securities Act. As an underwriter, the Placement Agent would be required to comply with the requirements of the Securities Act and the Securities Exchange Act of 1934, as amended, or the "Exchange Act," including Rule 415(a)(4) under the Securities Act and Rule 10b-5 and Regulation M promulgated under the Exchange Act.

These rules and regulations may limit the timing of purchases and sales of shares offered hereby by the Placement Agent acting as a principal. Under these rules and regulations, the Placement Agent:

● ordinary brokerage transactions and transactions in which the broker solicits purchasers;

● must not engage in any stabilization activity in connection with our securities; and

● must not bid for or purchase any of our securities or attempt to induce any person to purchase any of our securities, other than as permitted under the Exchange Act, until it has completed its participation in the distribution

**Passive Market Making**

In connection with this offering, the Placement Agent may engage in passive market making transactions in our Common Stock on the Nasdaq Stock Market in accordance with Rule 103 of Regulation M promulgated under the Exchange Act during a period before the commencement of offers or sales of shares of our Common Stock and extending through the completion of the distribution. A passive market maker must display its bid at a price not in excess of the highest independent bid of that security. If all independent bids are lowered below the passive market maker's bid, however, that bid must then be lowered when specified purchase limits are exceeded.

**Other Relationships**

From time to time, the Placement Agent and its affiliates may in the future provide various investment banking, financial advisory and other services to us and our affiliates for which services they may receive customary fees, but we have no present arrangements to do so. Subject to Regulation M and other applicable statutes and regulations, in the course of its businesses, the Placement Agent and its affiliates may actively trade our securities or loans for their own account or for the accounts of customers, and, accordingly, the Placement Agent may at any time hold long or short positions in such securities or loans.

As disclosed in the Placement Agency Agreement, each Purchaser has been informed and acknowledges that Vincent LoPriore, an investment manager at Gravitas Capital LP (the largest shareholder of the Company), is also an indirect owner of the holding company of President Street Global, LLC, a FINRA-registered broker-dealer engaged as placement agent in this offering of the Securities. President Street Global is receiving a monthly retainer and a success fee in connection with this transaction. Mr. LoPriore may indirectly benefit from such compensation and may be deemed to have a conflict of interest in this offering of securities.

The foregoing includes a brief summary of certain provisions of the placement agency agreement and securities purchase agreement that we will enter into and does not purport to be a complete statement of their terms and conditions. A copy of the placement agency agreement and the form of securities purchase agreement will be filed with the SEC and incorporated by reference into the registration statement of which this prospectus supplement forms a part. See "Where You Can Find More Information" on page <u>S-14</u>.

**Listing**

Our Common Stock is listed on the Nasdaq Capital Market under the symbol "THAR."

**LEGAL MATTERS**

Certain legal matters relating to the offering of the securities under this prospectus supplement will be passed upon for us by Lucosky Brookman LLP, Woodbridge, New Jersey.

**EXPERTS**

Our consolidated financial statements of as of December 31, 2024 and 2023 and for each of the years in the two-year period ended December 31, 2024 incorporated in this Prospectus by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 2024 have been audited by Rosenberg Rich Baker Berman P.A., an independent registered public accounting firm, as stated in their reports thereon, incorporated herein by reference, and have been incorporated in this Prospectus and Registration Statement in reliance upon such report and upon the authority of such firm as experts in accounting and auditing.

**WHERE YOU CAN FIND MORE INFORMATION**

We file annual, quarterly and periodic reports, proxy statements, and other information with the SEC using the SEC's Electronic Data Gathering, Analysis, and Retrieval ("EDGAR") system. The SEC maintains a web site that contains reports, proxy and information statements, and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.

Our website address is *www.tharimmune.com*. The information on our website, however, is not, and should not be deemed to be, a part of this prospectus.

This prospectus and any prospectus supplement are part of a registration statement that we filed with the SEC and do not contain all of the information in the registration statement. This prospectus omits some of the information contained in the registration statement, and we refer you to the full registration statement for further information about us and the securities being offered by the selling stockholders under this prospectus. The full registration statement may be obtained from the SEC or us, as provided below. Forms of the documents establishing the terms of the offered securities are or may be filed as exhibits to the registration statement. Statements in this prospectus or any prospectus supplement about these documents are summaries and each statement is qualified in all respects by reference to the document to which it refers. You should refer to the actual documents for a more complete description of the relevant matters. You may inspect a copy of the registration statement through the SEC's website, as provided above.

**INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE**

**Incorporation by Reference**

We are "incorporating by reference" in this prospectus certain documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents. The information in the documents incorporated by reference is considered to be part of this prospectus. Statements contained in documents that we file with the SEC and that are incorporated by reference in this prospectus will automatically update and supersede information contained in this prospectus, including information in previously filed documents or reports that have been incorporated by reference in this prospectus, to the extent the new information differs from or is inconsistent with the old information. We have filed or may file the following documents with the SEC and they are incorporated herein by reference as of their respective dates of filing.

● The
 Company's Annual Report on [Form 10-K](https://www.sec.gov/Archives/edgar/data/1861657/000164117225000654/form10-k.htm) for the year ended December 31, 2024 filed with the SEC on March 26, 2025;

● The
 Company's Quarterly Reports on [Form 10-Q](https://www.sec.gov/Archives/edgar/data/1861657/000164117225009569/form10-q.htm) for the quarter ended March 31, 2025 filed with the SEC on May 12, 2025;

● The
 Company's Current Reports on Form 8-K filed with the SEC on [February 27, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000149315225008538/form8-k.htm) , [April 4, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225002817/form8-k.htm) , [April 10, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225003617/form8-k.htm) , [April 25, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225006101/form8-k.htm) , [April 28, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225006499/form8-k.htm) , [May 9, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225009480/form8-k.htm) , [June 10, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225014534/form8-k.htm) , [June 11, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225014753/form8-k.htm) , [June 16, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225015248/form8-k.htm) , [June 20, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225015675/form8-k.htm) and [June 24, 2025](https://www.sec.gov/Archives/edgar/data/1861657/000164117225016291/form8-k.htm) (except for any portions of such Current Reports on Form 8-K furnished pursuant to Item 2.02 and/or Item 7.01 thereof
 and any corresponding exhibits thereto not filed with the SEC);

● The
 Company's definitive proxy statement on [Schedule 14A](https://www.sec.gov/Archives/edgar/data/1861657/000164117225007886/formdefa14a.htm) for the Company's 2025 annual meeting of stockholders filed with the SEC on April 30, 2025, as amended on May
 2, 2025;

● The
 description of the Company's common stock contained in its Registration Statement on [Form 8-A](https://www.sec.gov/Archives/edgar/data/1861657/000149315222000761/form8-a12b.htm) (File No. 001-41210) filed with the SEC on January 10, 2022, under Section 12(b) of the Securities Exchange Act of 1934,
 as amended (the "Exchange Act"), including any amendments or reports filed for the purpose of updating such description.

All documents that we filed with the SEC pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act subsequent to the date of this registration statement and prior to the filing of a post-effective amendment to this registration statement that indicates that all securities offered under this prospectus have been sold, or that deregisters all securities then remaining unsold, will be deemed to be incorporated in this registration statement by reference and to be a part hereof from the date of filing of such documents.

Any statement contained in a document incorporated or deemed to be incorporated by reference in this prospectus shall be deemed modified, superseded, or replaced for purposes of this prospectus to the extent that a statement contained in this prospectus, or in any subsequently filed document that also is deemed to be incorporated by reference in this prospectus, modifies, supersedes, or replaces such statement. Any statement so modified, superseded, or replaced shall not be deemed, except as so modified, superseded, or replaced, to constitute a part of this prospectus. None of the information that we disclose under Items 2.02 or 7.01 of any Current Report on Form 8-K or any corresponding information, either furnished under Item 9.01 or included as an exhibit therein, that we may from time to time furnish to the SEC will be incorporated by reference into, or otherwise included in, this prospectus, except as otherwise expressly set forth in the relevant document. Subject to the foregoing, all information appearing in this prospectus is qualified in its entirety by the information appearing in the documents incorporated by reference.

You may request a free copy of any of the documents incorporated by reference in this prospectus (other than exhibits, unless they are specifically incorporated by reference in the documents) by writing or telephoning us at the following address:

Tharimmune, Inc.

34 Shrewsbury Avenue

Red Bank, NJ 07701

Telephone: (732) 889-3111

Exhibits to the filings will not be sent, however, unless those exhibits have specifically been incorporated by reference in this prospectus and any accompanying prospectus supplement and the information on our website is not a part of this prospectus and is not incorporated by reference.

**PROSPECTUS**

![](form424b5_002.jpg)

**Hillstream BioPharma, Inc.**

**Common Stock**

**Preferred Stock**

**Debt Securities**

**Warrants**

**Units**

We may offer and sell, from time to time in one or more offerings, any combination of common stock, preferred stock, debt securities, warrants to purchase common stock, preferred stock or debt securities, or any combination of the foregoing, either individually or as units comprised of one or more of the other securities, having an aggregate initial offering price not exceeding $75 million.

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

The specific terms of any securities to be offered, and the specific manner in which they may be offered, will be described in one or more supplements to this prospectus. This prospectus may not be used to consummate sales of any of these securities unless it is accompanied by a prospectus supplement. Before investing, you should carefully read this prospectus and any related prospectus supplement.

Our common stock is presently listed on The Nasdaq Capital Market under the symbol "HILS." On March 16, 2023, the last reported sale price of our common stock was $0.9834 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing on The Nasdaq Capital Market or any securities market or other exchange of the securities, if any, covered by the prospectus supplement. Prospective purchasers of our securities are urged to obtain current information as to the market prices of our securities, where applicable.

These securities may be sold directly by us, through dealers or agents designated from time to time, to or through underwriters, dealers, or through a combination of these methods on a continuous or delayed basis. See "*Plan of Distribution*" in this prospectus. We may also describe the plan of distribution for any particular offering of our securities in a prospectus supplement. If any agents, underwriters or dealers are involved in the sale of any securities in respect of which this prospectus is being delivered, we will disclose their names and the nature of our arrangements with them in a prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from any such sale will also be included in a prospectus supplement.

**Investing in our securities involves various risks. See "*Risk Factors*" contained herein for more information on these risks. Additional risks will be described in the related prospectus supplements under the heading "*Risk Factors*." You should review that section of the related prospectus supplements for a discussion of matters that investors in our securities should consider.**

**Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or passed upon the adequacy or accuracy of this prospectus or any accompanying prospectus supplement. Any representation to the contrary is a criminal offense.**

The date of this prospectus is March 24, 2023.

**TABLE OF CONTENTS**

---

| | |
|:---|:---|
|  | **Page** |
| [ABOUT THIS PROSPECTUS](#a_002) | 1 |
| [SUMMARY](#a_003) | 2 |
| [RISK FACTORS](#a_004) | 7 |
| [DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS](#a_005) | 7 |
| [USE OF PROCEEDS](#a_006) | 8 |
| [DESCRIPTION OF CAPITAL STOCK](#a_007) | 8 |
| [DESCRIPTION OF DEBT SECURITIES](#a_008) | 10 |
| [DESCRIPTION OF WARRANTS](#a_009) | 17 |
| [DESCRIPTION OF UNITS](#a_010) | 19 |
| [LEGAL OWNERSHIP OF SECURITIES](#a_011) | 20 |
| [PLAN OF DISTRIBUTION](#a_012) | 23 |
| [LEGAL MATTERS](#a_013) | 26 |
| [EXPERTS](#a_014) | 26 |
| [WHERE YOU CAN FIND MORE INFORMATION](#a_015) | 26 |
| [INCORPORATION OF DOCUMENTS BY REFERENCE](#a_016) | 27 |

---

ii

**ABOUT THIS PROSPECTUS**

This prospectus is part of a registration statement that we filed with the U.S. Securities and Exchange Commission ("SEC") using a "shelf" registration process. Under this shelf registration statement, we may sell from time to time in one or more offerings of common stock and preferred stock, various series of debt securities and/or warrants to purchase any of such securities, either individually or as units comprised of a combination of one or more of the other securities in one or more offerings up to a total dollar amount of $75 million. This prospectus provides you with a general description of the securities we may offer. Each time we sell any type or series of securities under this prospectus, we will provide a prospectus supplement that will contain more specific information about the terms of that offering.

This prospectus does not contain all of the information included in the registration statement. For a more complete understanding of the offering of the securities, you should refer to the registration statement, including its exhibits. We may add, update or change, in a prospectus supplement or free writing prospectus, any of the information contained in this prospectus or in the documents we have incorporated by reference into this prospectus. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. This prospectus, together with the applicable prospectus supplement, any related free writing prospectus and the documents incorporated by reference into this prospectus and the applicable prospectus supplement, will include all material information relating to the applicable offering. You should carefully read both this prospectus and the applicable prospectus supplement and any related free writing prospectus, together with the additional information described under "*Where You Can Find More Information*," before buying any of the securities being offered.

We have not authorized any dealer, agent or other person to give any information or to make any representation other than those contained or incorporated by reference in this prospectus, any accompanying prospectus supplement or any related free writing prospectus that we may authorize to be provided to you. You must not rely upon any information or representation not contained or incorporated by reference in this prospectus or an accompanying prospectus supplement, or any related free writing prospectus that we may authorize to be provided to you. This prospectus, the accompanying prospectus supplement and any related free writing prospectus, if any, 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, the accompanying prospectus supplement or any related free writing prospectus, if any, 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 (as our business, financial condition, results of operations and prospects may have changed since that date), even though this prospectus, any applicable prospectus supplement or any related free writing prospectus is delivered or securities are sold on a later date.

We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference in this prospectus were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.

This prospectus may not be used to consummate sales of our securities, unless it is accompanied by a prospectus supplement. To the extent there are inconsistencies between any prospectus supplement, this prospectus and any documents incorporated by reference, the document with the most recent date will control.

As permitted by the rules and regulations of the SEC, the registration statement, of which this prospectus forms a part, includes additional information not contained in this prospectus. You may read the registration statement and the other reports we file with the SEC at the SEC's web site or at the SEC's offices described below under the heading "*Where You Can Find More Information."*

**Company References**

In this prospectus "the Company," "we," "us," and "our" refer to Hillstream BioPharma, Inc., a Delaware corporation, and its subsidiaries, unless the context otherwise requires.

**SUMMARY**

**Overview**

Hillstream BioPharma is a pre-clinical biotechnology company developing novel therapeutic candidates targeting ferroptosis, an emerging new anti-cancer mechanism resulting in iron mediated cell death ("IMCD") and targeted immuno-oncology ("IO") novel biologics, for the treatment drug resistant cancers.

***Our Lead Candidates***

***HSB-1216***

Our most advanced product candidate, HSB-1216, is an IMCD inducer, targeting a variety of solid tumors. In a clinical pilot study conducted at the University of Heidelberg, Germany, the active drug in HSB-1216 was found to reduce tumor burden in treatment resistant cancers, including triple negative breast cancer ("TNBC") and epithelial carcinomas. We utilize Quatramer™, our proprietary tumor targeting platform, to enhance the uptake of HSB-1216 in the tumor microenvironment ("TME") with an extended duration of action and minimal off-target toxicity. Our goal is to submit an investigational new drug application ("IND") to the U.S. Food and Drug Administration ("FDA") and initiate a clinical study with HSB-1216 in the second half of 2023; however, no assurance can be provided that our IND will be accepted by the FDA in 2023, if at all. If our IND is accepted by the FDA, our HSB-1216 clinical study will focus on expanding upon the clinical pilot study conducted in Germany. If we are able to start our clinical study with HSB-1216 in the second half of 2023, we anticipate that clinical data from such trial will be released either late 2024 or early 2025.

The discovery of regulated cell death processes, such as apoptosis and autophagy, has enabled novel target discovery for drug development. Ferroptosis, a form of IMCD, is an emerging regulated cell death process which decreases intracellular iron, or the Labile Iron Pool ("LIP"), a known factor required for cell growth. Cancer cells promote increase in the LIP leading to unregulated cell growth and metabolism. Decreasing the LIP induces iron-led reactive oxygen species ("ROS") production and lipid peroxidation, two key hallmarks of ferroptosis/IMCD, which lead to regulated cell death. HSB-1216 sequesters iron in the cytoplasm of cancer cells and decreases the LIP, thereby inducing ferroptosis/IMCD, leading to regulated cell death. Areas of interest for the development of HSB-1216 are as a treatment of solid tumors, including small cell lung cancer, TNBC, uveal melanoma, glioblastoma multiforme, head and neck squamous cell carcinoma and other drug resistant cancers with high unmet need.

***HSB-3215***

Our second product candidate, HSB-1940, is an anti-HER2 monoclonal antibody candidate. The ErbB or HER family of cell surface proteins are some of the most well-known and validated oncology drug targets including ErbB2 or HER2 (human epidermal growth factor receptor) and Erb3 or HER3. Antibodies against HER2 and HER3 bind to different domains of the extracellular portion of the proteins or epitopes with trastuzumab primarily binding the extracellular domain IV of HER2. HER2 is a validated tumor antigen for antibody drug conjugates to treat HER2 positive cancers.

Applied Biomedical Science Institute ("ABSI") has developed technology to target unique functional epitopes of the cancer targets HER2 and HER3. Monoclonal antibodies being developed at ABSI are unique from the currently approved anti-HER2 antibodies. ABSI has granted us an exclusive option to license technology from ABSI to develop HER2 and HER3 antibodies, including multi-specific and Quatramer-based therapeutics incorporating portions of the antibodies. These antibodies could be incorporated into proprietary multi-format biologics (bi- and tri-specific antibodies, ADCs (antibody drug conjugates), CAR-T and CAR-NKs, in Quatramers and Quatrabodies) against drug resistant cancers including HER2-positive metastatic breast cancer, gastric cancer, lung cancer and ovarian cancer. The ABSI option terminates on March 24, 2023, unless extended by the parties.

***HSB-1940***

Our third product candidate, HSB-1940, is a Quatrabody, a proprietary IO biologic, in development targeting PD-1. We entered into a research collaboration and product license agreement with Minotaur Therapeutics, Inc. ("Minotaur") and a commercial license agreement with Taurus Biosciences, LLC ("Taurus"), for use of certain technology, including OmniAb antibodies, to advance Picobodies*™* against novel, undruggable epitopes in high-value validated IO targets starting with PD-1. The technologies of Hillstream and Minotaur will be combined under the license from Taurus to discover, develop and advance biotherapeutics against high-value validated IO targets. Picobodies are bovine-derived antibody "knob" domains comprised of cysteine-rich ultralong complementary determining region ("CDR") H3 sequences of 30-40 amino acids weighing ~3-4 KDa, which have the potential to access challenging undruggable epitopes better than full size antibodies can. By combining Quatramers, with their long half-life, coated with a PD-1 Picobody to create HSB-1940, we believe we can more efficiently target novel epitopes with greater binding affinity than approved anti-PD-1 antibodies. We further believe that the development of HSB-1940 is a step toward enabling us to enter the rapidly growing IO market with additional targets thereafter.

***Our Other Product Candidates***

We intend to further develop our pipeline with novel bispecific monoclonal antibodies. These bispecific antibodies are planned to simultaneously bind to two different antigens or to two different epitopes on the same antigen. Whether two different antigens or two epitopes on the same antigen, the bispecific antibody could bind its targets either on the same cell (*cis*) or on to different cells (*trans*). Our strategy involves targeting PD-1 combined with a known, validated undisclosed antigen (HSB-9646) or using HER2 instead of PD-1 (HSB-0059), while naturally occurring antibodies typically only target one epitope on one antigen.

**Our Platform Technologies**

***Quatramer Technology***

Quatramer™ is a proprietary tumor targeting platform which allows us to leverage and exploit key tumor targets and novel emerging pathways such as IMCD to facilitate the delivery of potent drugs directly to the TME, while sparing healthy tissue. By efficiently extending the circulation half-life, as well as targeting delivery to the tumor site, Quatramer traps drugs into the TME. This emerging orthogonal anti-cancer approach leverages a fundamental recognized mechanism of iron mediated tumor growth and metabolism. We are building a portfolio of long-acting, potent anti-cancer drug candidates using our Quatramer platform.

**Risks Associated with Our Business**

Our ability to execute on our business strategy is subject to a number of risks, which are discussed more fully in the section titled "Risk Factors." Investors should carefully consider these risks before making an investment in our common stock. These risks include, among others, the following:

***Risks Related to Our Financial Position and Need for Additional Capital***

● We
 have a limited operating history, and we have not initiated, conducted or completed any clinical trials, and have no products approved
 for commercial sale, which may make it difficult for you to evaluate our current business and likelihood of success and viability.

● We
 have incurred significant losses since inception, we expect to incur losses in the future and we may not be able to generate sufficient
 revenue to achieve and maintain profitability.

● We
 will require substantial additional capital to finance our operations in the future. If we are unable to raise such capital when
 needed, or on acceptable terms, we may be forced to curtail, delay or discontinue one or more of development programs or future commercialization
 efforts.

● Management has performed an analysis and concluded that
 there is a substantial doubt about our ability to continue as a going concern. Separately, our independent registered public accounting
 firm has also concluded there exists a substantial doubt about our ability to continue as a going concern, which may hinder our ability
 to obtain future financing.

***Risks Related to the Discovery and Development of Our Product Candidates***

● We
 are substantially dependent on the success of our product candidates. If we are unable to complete development of, obtain approval
 for and commercialize our product candidates in a timely manner, our business may be harmed.

● Any
 delays in the commencement or completion, or termination or suspension, of our ongoing, planned or future clinical trials could result
 in increased costs to us, delay or limit our ability to generate revenue and adversely affect our commercial prospects.

● The
 outcome of pre-clinical testing and early clinical trials may not be predictive of the success of later clinical trials, and the
 results of our clinical trials may not satisfy the requirements of the U.S. Food and Drug Administration or other comparable
 foreign regulatory authorities.

● If
 we experience delays or difficulties in enrolling patients in our ongoing or planned clinical trials, our receipt of necessary regulatory
 approval could be delayed or prevented.

● We
 may be required to perform additional or unanticipated clinical trials to obtain approval or be subject to post-marketing testing
 requirements to maintain regulatory approval. If our candidates prove to be ineffective, unsafe or commercially unviable, our entire
 technology platform and pipeline would have little, if any, value, which would have a material and adverse effect on our business,
 financial condition, results of operations and prospects.

● Adverse
 side effects or other safety risks associated with our drug candidates could delay or preclude approval, cause us to suspend or discontinue
 clinical trials or abandon further development, limit the commercial profile of an approved label, or result in significant negative
 consequences following marketing approval, if any.

● Our
 products may never achieve market acceptance.

● We
 face significant competition, and if our competitors develop and market technologies or products more rapidly than we do or that
 are more effective, safer or less expensive than the products we develop, our commercial opportunities will be negatively impacted.

● Our business may be adversely affected by the coronavirus
 pandemic.

***Risks Related to Our Reliance on Third Parties***

● We
 rely on third parties to manufacture our product candidates and conduct our pre-clinical studies and clinical trials. If these third
 parties do not successfully perform their contractual and regulatory duties or meet expected deadlines, we may not be able to obtain
 regulatory approval for or commercialize our drug candidates and our business could be substantially harmed.

● We
 currently depend on sole source suppliers and manufacturers for certain
 ingredients, and the inability to obtain such ingredients as required could harm
 our business.

***Risks Related to Commercialization of Our Drug Candidates***

● Even
 if we are successful in completing all pre-clinical studies and clinical trials, we may not be successful in commercializing one
 or more of our drug candidates.

● The
 development and commercialization of pharmaceutical products are subject to extensive regulation, and we may not obtain regulatory
 approvals for our drug candidates on a timely basis, or at all.

***Risks Related to Our Intellectual Property***

● Our
 inability to protect our intellectual property and proprietary rights may have a material adverse effect on our business.

***Risks Related to Managing Our Business and Operations***

● We
 may encounter difficulties in managing our growth, which could adversely affect our operations.

● Our
 employees, independent contractors, consultants, commercial partners, collaborators and vendors may engage in misconduct or other
 improper activities, including noncompliance with regulatory standards and requirements.

***Risks Related to Our Common Stock***

● We
 are currently listed on The Nasdaq Capital Market. If we are unable to maintain listing of our securities on Nasdaq or any stock
 exchange, our stock price could be adversely affected and the liquidity of our stock and our ability to obtain financing could be
 impaired and it may be more difficult for our stockholders to sell their securities.

● Our
 principal stockholders and management own a significant percentage of our stock and will be able to exert significant control over
 matters subject to stockholder approval.

● We
 do not intend to pay dividends on our common stock so any returns will be limited to the value of our stock.

**Our Corporate History**

Hillstream BioPharma Inc. ("HBI") was incorporated on March 28, 2017, as a Delaware C-corporation. On July 16, 2019, Hillstream BioPharma Holdings, Inc. ("Holdco") was formed as a Delaware C-corporation. On July 24, 2019, Holdco entered into a Contribution and Exchange Agreement with Nanoproteagen LLC ("Nanoproteagen") whereby the members of Nanoproteagen exchanged 100% of their membership interests in Nanoproteagen for shares of Holdco common stock. Also on July 24, 2019, the stockholders of HBI exchanged 100% of their shares of common stock for shares of common stock of Holdco. HBI and Nanoproteagen became wholly-owned subsidiaries of Holdco. On August 7, 2019, pursuant to a certificate of amendment, Holdco's name was changed to Hillstream BioPharma, Inc. and HBI's name was changed to HB Pharma Corp. On November 12, 2020, Hillstream BioPharma, Inc. entered into a Share Exchange Agreement with Farrington Therapeutics LLC ("Farrington"), whereby the members of Farrington exchanged their membership interest in Farrington for shares of common stock of Hillstream BioPharma, Inc., and Farrington became a wholly-owned subsidiary of Hillstream BioPharma, Inc. At December 31, 2022, Hillstream BioPharma, Inc. has two wholly-owned subsidiaries: HB Pharma Corp. and Farrington. At February 27, 2023, Hillstream BioPharma, Inc. has one wholly-owned subsidiary, HB Pharma Corp.

**Corporate Information**

Our principal executive offices are located at 1200 Route 22 East, Suite 2000, Bridgewater, NJ 08807 and our telephone number is (908) 955-3140. Our website address is www.hillstreambio.com. The information contained on our website is not incorporated by reference into this prospectus, and you should not consider any information contained on, or that can be accessed through, our website as part of this prospectus or in deciding whether to purchase our common shares.

**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, either individually or in units, from time to time under this prospectus, together with any applicable prospectus supplement and related free writing prospectus, at prices and on terms to be determined by market conditions at the time of offering. If we issue any debt securities at a discount from their original stated principal amount, then, for purposes of calculating the total dollar amount of all securities issued under this prospectus, we will treat the initial offering price of the debt securities as the total original principal amount of the debt securities. Each time we offer securities under this prospectus, we will provide offerees with a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities being offered, 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;

● 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;

● ranking;

● restrictive covenants, if any;

● voting or other rights, if any; and

● important United States federal income tax considerations.

A 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 to or through underwriters, dealers or agents or directly to purchasers. We, as well as any agents acting on our behalf, reserve the sole right to accept and to reject in whole or in part any proposed purchase of securities. Each prospectus supplement will set forth the names of any underwriters, dealers or agents involved in the sale of securities described in that prospectus supplement and any applicable fee, commission or discount arrangements with them, details regarding any over-allotment option granted to them, and net proceeds to us. The following is a summary of the securities we may offer with this prospectus.

**Common Stock**

We currently have authorized 250,000,000 shares of common stock, par value $0.0001 per share. As of March 10, 2023, 11,514,144 shares of common stock were issued and outstanding. We may offer shares of our common stock either alone or underlying other registered securities convertible into or exercisable for our common stock. Holders of our common stock are entitled to such dividends as our board of directors (the "Board of Directors" or "Board") may declare from time to time out of legally available funds, subject to the preferential rights of the holders of any shares of our preferred stock that are outstanding or that we may issue in the future. Currently, we do not pay any dividends on our common stock. Each holder of our common stock is entitled to one vote per share held on all matters submitted to a vote of our stockholders. In this prospectus, we provide a general description of, among other things, the rights and restrictions that apply to holders of our common stock.

**Preferred Stock**

We currently have authorized 10,000,000 shares of preferred stock, par value $0.0001, none of which are issued and outstanding.

Any authorized and undesignated shares of preferred stock may be issued from time to time in one or more series pursuant to a resolution or resolutions providing for such issue duly adopted by our Board of Directors (authority to do so being hereby expressly vested in the Board of Directors). The Board of Directors is further authorized, subject to limitations prescribed by law, to fix by resolution or resolutions the designations, powers, preferences and rights, and the qualifications, limitations or restrictions thereof, of any wholly unissued series of preferred stock, including, without limitation, authority to fix by resolution or resolutions the dividend rights, dividend rate, conversion rights, voting rights, rights and terms of redemption (including sinking fund provisions), redemption price or prices, and liquidation preferences of any such series, and the number of shares constituting any such series and the designation thereof, or any of the foregoing.

The rights, preferences, privileges, and restrictions granted to or imposed upon any series of preferred stock that we offer and sell under this prospectus and applicable prospectus supplements will be set forth in a certificate of designation relating to the series. We will incorporate by reference into the registration statement of which this prospectus is a part the form of any certificate of designation that describes the terms of the series of preferred stock we are offering before the issuance of shares of that series of preferred stock. You should read any 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**

We may offer general debt obligations, which may be secured or unsecured, senior or subordinated, and convertible into shares of our common stock or preferred stock. In this prospectus, we refer to the senior debt securities and the subordinated debt securities together as the "debt securities." We may issue debt securities under a note purchase agreement or under an indenture to be entered between us and a trustee. The indentures do not limit the amount of securities that may be issued under them and provide that debt securities may be issued in one or more series. The senior debt securities will have the same rank as all of our other indebtedness that is not subordinated. The subordinated debt securities will be subordinated to our senior debt on terms set forth in the applicable prospectus supplement. In addition, the subordinated debt securities will be effectively subordinated to creditors and preferred stockholders of our subsidiaries. Our Board of Directors will determine the terms of each series of debt securities being offered. This prospectus contains only general terms and provisions of the debt securities. The applicable prospectus supplement will describe the particular terms of the debt securities offered thereby. You should read any 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 note agreements and/or indentures that contain the terms of the debt securities. The forms of senior and subordinated indentures have been filed as exhibits to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of debt securities being offered will be incorporated by reference into the registration statement of which this prospectus is a part from reports we file with the SEC.

**Warrants**

We may offer warrants for the purchase of shares of our common stock or preferred stock or of debt securities. We may issue the warrants by themselves or together with common stock, preferred stock or debt securities, and the warrants may be attached to or separate from any offered securities. Any warrants issued under this prospectus may be evidenced by warrant certificates. Warrants may be issued under a separate warrant agreement to be entered into between us and the investors or a warrant agent. Our Board of Directors will determine the terms of the warrants. This prospectus contains only general terms and provisions of the warrants. The applicable prospectus supplement will describe the particular terms of the warrants being offered thereby. You should read any prospectus supplement and any free writing prospectus that we may authorize to be provided to you related to the series of warrants being offered, as well as the complete warrant agreements that contain the terms of the warrants. Specific warrant agreements will contain additional important terms and provisions and will be incorporated by reference into the registration statement of which this prospectus is a part from reports we file with the SEC.

**Units**

We may offer units consisting of our common stock or preferred stock, debt securities and/or warrants to purchase any of these securities in one or more series. We may evidence each series of units by unit certificates that we will issue under a separate agreement. We may enter into unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. We will indicate the name and address of the unit agent in the applicable prospectus supplement relating to a particular series of units. This prospectus contains only a summary of certain general features of the units. The applicable prospectus supplement will describe the particular features of the units being offered thereby. You should read any prospectus supplement and any free writing prospectus that we may authorize to be provided to you related to the series of units being offered, as well as the complete unit agreements that contain the terms of the units. Specific unit agreements will contain additional important terms and provisions and will be incorporated by reference into the registration statement of which this prospectus is a part from reports we file with the SEC.

**RISK FACTORS**

An investment in our securities involves a high degree of risk. This prospectus contains, and the prospectus supplement applicable to each offering of our securities will contain, a discussion of the risks applicable to an investment in our securities. Prior to making a decision about investing in our securities, you should carefully consider the specific factors discussed under the heading "Risk Factors" in this prospectus and the applicable prospectus supplement, together with all of the other information contained or incorporated by reference in the prospectus supplement or appearing or incorporated by reference in this prospectus. You should also consider the risks, uncertainties and assumptions discussed under Item 1A, "Risk Factors," in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the SEC on March 16, 2023, and incorporated herein by reference, as may be amended, supplemented or superseded from time to time by other reports we file with the SEC in the future and any prospectus supplement related to a particular offering. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our operations. The occurrence of any of these known or unknown risks might cause you to lose all or part of your investment in the offered securities.

**DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS**

This prospectus, any accompanying prospectus supplement, any related free writing prospectus and the documents incorporated by reference herein or therein contain, in addition to historical information, certain forward-looking statements within the meaning of Section 27A of the Securities Act or 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), that include information relating to future events, future financial performance, strategies, expectations, competitive environment, regulatory environment and availability of resources. Such forward-looking statements include those that express plans, anticipation, intent, contingency, goals, targets or future development and/or otherwise are not statements of historical fact. These forward-looking statements are based on our current expectations and projections about future events and they are subject to risks and uncertainties known and unknown that could cause actual results and developments to differ materially from those expressed or implied in such statements.

In some cases, you can identify forward-looking statements by terminology, such as "expects," "anticipates," "intends," "estimates," "plans," "believes," "seeks," "may," "should", "could" or the negative of such terms or other similar expressions. Accordingly, these statements involve estimates, assumptions and uncertainties that could cause actual results to differ materially from those expressed in them. Any forward-looking statements are qualified in their entirety by reference to the factors discussed throughout this prospectus, any accompanying prospectus supplement or incorporated herein by reference.

Risks, uncertainties and other factors that may cause our actual results, performance or achievements to be different from those expressed or implied in our written or oral forward-looking statements may be found in this prospectus and any accompanying prospectus supplement under the heading "Risk Factors" and in our Annual Report on Form 10-K for the year ended December 31, 2022 under the headings "Risk Factors" and "Business," as may be amended, supplemented or superseded from time to time by other reports we file with the SEC in the future and any prospectus supplement related to a particular offering.

Forward-looking statements speak only as of the date they are made. You should not put undue reliance on any forward-looking statements. We assume no obligation to update forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting forward-looking information, except to the extent required by applicable securities laws. If we do update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

New factors emerge from time to time, and it is not possible for us to predict which factors will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. We qualify all of the information presented in this prospectus, any accompanying prospectus supplement and incorporated herein by reference, and particularly our forward-looking statements, by these cautionary statements.

**USE OF PROCEEDS**

Except as described in any prospectus supplement and any free writing prospectus in connection with a specific offering, we currently intend to use the net proceeds from the sale of the securities offered under this prospectus for general corporate purposes, including the development and commercialization of our products, research and development, general and administrative expenses, license or technology acquisitions, and working capital and capital expenditures. We may also use the net proceeds to repay any debts and/or invest in or acquire complementary businesses, products, or technologies, although we have no current commitments or agreements with respect to any such investments or acquisitions as of the date of this prospectus. We have not determined the amount of net proceeds to be used specifically for the foregoing purposes. As a result, our management will have broad discretion in the allocation of the net proceeds and investors will be relying on the judgment of our management regarding the application of the proceeds of any sale of the securities. Pending use of the net proceeds, we intend to invest the proceeds in short-term, investment-grade, interest-bearing instruments.

Each time we offer securities under this prospectus, we will describe the intended use of the net proceeds from that offering in the applicable prospectus supplement. The actual amount of net proceeds we spend on a particular use will depend on many factors, including, our future capital expenditures, the amount of cash required by our operations, and our future revenue growth, if any. Therefore, we will retain broad discretion in the use of the net proceeds.

**DESCRIPTION OF CAPITAL STOCK**

**General**

The following description of our capital stock, together with any additional information we include in any applicable prospectus supplement or any related free writing prospectus, summarizes the material terms and provisions of our common stock and the preferred stock that we may offer under this prospectus. While the terms we have summarized below will apply generally to any future common stock or preferred stock that we may offer, we will describe the particular terms of any class or series of these securities in more detail in the applicable prospectus supplement. For the complete terms of our common stock and preferred stock, please refer to our Certificate of Incorporation, as amended ("Certificate of Incorporation"), and our Bylaws that are incorporated by reference into the registration statement of which this prospectus is a part or may be incorporated by reference in this prospectus or any applicable prospectus supplement. The terms of these securities may also be affected by Delaware General Corporation Law (the "DGCL"). The summary below and that contained in any applicable prospectus supplement or any related free writing prospectus are qualified in their entirety by reference to our Certificate of Incorporation and our Bylaws.

As of the date of this prospectus, our authorized capital stock consisted of 250,000,000 shares of common stock, $0.0001 par value per share, and 10,000,000 shares of preferred stock, $0.0001 par value per share. Our Board may establish the rights and preferences of the preferred stock from time to time. As of March 10, 2023, there were 11,514,144 shares of our common stock and no shares of our preferred stock issued and outstanding.

**Common Stock**

We are authorized to issue up to a total of 250,000,000 shares of common stock, par value $0.0001 per share. Holders of our common stock are entitled to one vote for each share held on all matters submitted to a vote of our stockholders. Holders of our common stock have no cumulative voting rights. All shares of common stock offered hereby will, when issued, be fully paid and nonassessable, including shares of common stock issued upon the exercise of common stock warrants or subscription rights, if any.

Further, holders of our common stock have no preemptive or conversion rights or other subscription rights. Upon our liquidation, dissolution or winding-up, holders of our common stock are entitled to share in all assets remaining after payment of all liabilities and the liquidation preferences of any of our outstanding shares of preferred stock. Subject to preferences that may be applicable to any outstanding shares of preferred stock, holders of our common stock are entitled to receive dividends, if any, as may be declared from time to time by our Board of Directors out of our assets which are legally available.

The holders of a majority of the shares of our capital stock, represented in person or by proxy, are necessary to constitute a quorum for the transaction of business at any meeting. If a quorum is present, an action by stockholders entitled to vote on a matter is approved if the number of votes cast in favor of the action exceeds the number of votes cast in opposition to the action, with the exception of the election of directors, which requires a plurality of the votes cast.

**Preferred Stock**

Our Board of Directors has the authority, without further action by the stockholders, to issue up to 10,000,000 shares of preferred stock in one or more series and to fix the designations, powers, preferences, privileges, and relative participating, optional, or special rights as well as the qualifications, limitations, or restrictions of the preferred stock, including dividend rights, conversion rights, voting rights, terms of redemption, and liquidation preferences, any or all of which may be greater than the rights of the common stock. Our Board of Directors, without stockholder approval, can issue preferred stock with voting, conversion, or other rights that could adversely affect the voting power and other rights of the holders of common stock. Preferred stock could be issued quickly with terms calculated to delay or prevent a change of control 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, and may adversely affect the voting and other rights of the holders of common stock. At present, we have no plans to issue any shares of preferred stock following this offering.

**Anti-Takeover Effects of Certain Provisions of our Certificate of Incorporation, Bylaws and the DGCL**

We are governed by the provisions of Section 203 of the DGCL. In general, Section 203 prohibits a publicly traded Delaware corporation from engaging in a business combination with an interested stockholder for a period of three years after the date of the transaction in which the person became an interested stockholder, unless the business combination is approved in a prescribed manner. A business combination includes mergers, asset sales or other transactions resulting in a financial benefit to the stockholder. An interested stockholder is a person who, together with affiliates and associates, owns (or within three years, did own) 15% or more of the corporation's voting stock, subject to certain exceptions. The statute could have the effect of delaying, deferring or preventing a change in control of our Company.

Our Certificate of Incorporation and Bylaws contain provisions that could have the effect of discouraging potential acquisition proposals or making a tender offer or delaying or preventing a change in control, including changes a stockholder might consider favorable. In particular, our Certificate of Incorporation and Bylaws, as applicable, among other things:

● provide our Board of Directors with the ability to alter our bylaws without stockholder approval;

● provide that vacancies on our Board of Directors may be filled by a majority of directors in office, although less than a quorum;

● provide that special meetings of our stockholders may be called by our Board of Directors, our Chief Executive Officer, or our President (in the absence of a Chief Executive Officer), the Chairman of our Board of Directors or stockholders entitled to cast at least one-fifth of the votes which all stockholders are entitled to cast at the particular meeting; and

● provide advance notice requires for stockholders seeking to bring business before our annual meeting of stockholders, or to nominate candidates for election as directors at our annual meeting of stockholders.

Such provisions may have the effect of discouraging a third-party from acquiring us, even if doing so would be beneficial to our stockholders. These provisions are intended to enhance the likelihood of continuity and stability in the composition of our Board of Directors and in the policies formulated by them, and to discourage some types of transactions that may involve an actual or threatened change in control of our Company. These provisions are designed to reduce our vulnerability to an unsolicited acquisition proposal and to discourage some tactics that may be used in proxy fights. We believe that the benefits of increased protection of our potential ability to negotiate with the proponent of an unfriendly or unsolicited proposal to acquire or restructure our Company outweigh the disadvantages of discouraging such proposals because, among other things, negotiation of such proposals could result in an improvement of their terms.

However, these provisions could have the effect of discouraging others from making tender offers for our shares that could result from actual or rumored takeover attempts. These provisions also may have the effect of preventing changes in our management.

**Listing**

Our common stock is listed on The Nasdaq Capital Market under the trading symbol "HILS."

**Transfer Agent and Registrar**

The Transfer Agent and Registrar for our common stock is Pacific Stock Transfer Company.

**DESCRIPTION OF DEBT SECURITIES**

The following description, together with the additional information we include in any applicable prospectus supplements or free writing prospectuses, summarizes the material terms and provisions of the debt securities that we may offer under this prospectus. We may issue debt securities, 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 future debt securities 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 or free writing prospectus. The terms of any debt securities we offer under a prospectus supplement may differ from the terms we describe below. However, no prospectus supplement shall 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. As of the date of this prospectus, we have no outstanding registered debt securities. Unless the context requires otherwise, whenever we refer to the "indentures," we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.

We will issue any senior debt securities under the senior indenture that we will enter into with the trustee named in the senior indenture. We will issue any subordinated debt securities under the subordinated indenture and any supplemental indentures that we will enter into with the trustee named in the subordinated indenture. We have filed forms of these documents as exhibits 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 indentures will be qualified under the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"). We use the term "trustee" to refer to either the trustee under the senior indenture or the trustee under the subordinated indenture, as applicable.

The following summaries of material provisions of the senior debt securities, the subordinated debt securities and the indentures are subject to, and qualified in their entirety by reference to, all of the provisions of the indenture and any supplemental indentures 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 indentures that contains the terms of the debt securities. Except as we may otherwise indicate, the terms of the senior indenture and the subordinated indenture are identical.

**General**

The terms of each series of debt securities will be established by or pursuant to a resolution of our Board of Directors and set forth or determined in the manner provided in an officers' certificate or by a supplemental indenture. Debt securities may be issued in separate series without limitation as to aggregate principal amount. We may specify a maximum aggregate principal amount for the debt securities of any series. We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

● the title;

● the principal amount being offered, and if a series, the total amount authorized and the total amount outstanding;

● any limit on the amount that may be issued;

● whether or not we will issue the series of debt securities in global form, and, if so, the terms and who the depositary will be;

● the maturity date;

● whether and under what circumstances, if any, we will pay additional amounts on any debt securities held by a person who is not a United States person for tax purposes, and whether we can redeem the debt securities if we have to pay such additional amounts;

● the annual interest rate, 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;

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

● the terms of the subordination of any series of subordinated debt;

● the place where payments will be made;

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

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

● the date, if any, after which, and the price 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;

● provisions for a sinking fund purchase or other analogous fund, if any, including the date, if any, on which, and the price at which we are obligated, pursuant thereto 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;

● whether the indenture will restrict our ability or the ability of our subsidiaries, if any, to:

● incur additional indebtedness;

● issue additional securities;

● create liens;

● pay dividends or make distributions in respect of our capital stock or the capital stock of our subsidiaries;

● redeem capital stock;

● place restrictions on our subsidiaries' ability to pay dividends, make distributions or transfer assets;

● make investments or other restricted payments;

● sell or otherwise dispose of assets;

● enter into sale-leaseback transactions;

● engage in transactions with stockholders or affiliates;

● issue or sell stock of our subsidiaries; or

● effect a consolidation or merger;

● whether the indenture will require us to maintain any interest coverage, fixed charge, cash flow-based, asset-based or other financial ratios;

● a discussion of certain material or special United States federal income tax considerations applicable to the debt securities;

● information describing any book-entry features;

● the applicability of the provisions in the indenture on discharge;

● whether the debt securities are to be offered at a price such that they will be deemed to be offered at an "original issue discount" as defined in paragraph (a) of Section 1273 of the Internal Revenue Code of 1986, as amended;

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

● 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; and

● any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, including any additional events of default or covenants provided with respect to the debt securities, 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 under which a series of debt securities may be convertible into or exchangeable for our common stock, our preferred stock or other securities (including securities of a third party). We will include provisions as to 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, our preferred stock or other securities (including securities of a third party) 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 indentures will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of all or substantially all of our assets. However, any successor to or acquirer of such assets must assume all of our obligations under the indentures or the debt securities, as appropriate. If the debt securities are convertible into or exchangeable for our other securities or securities of other entities, the person with whom we consolidate or merge or to whom we sell all of our property must make provisions for the conversion of the debt securities into securities that the holders of the debt securities would have received if they had converted the debt securities before the consolidation, merger or sale.

**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 indentures with respect to any series of debt securities that we may issue:

● if we fail to pay interest when due and payable and our failure continues for 90 days and the time for payment has not been extended;

● if we fail to pay the principal, premium or sinking fund payment, if any, when due and payable at maturity, upon redemption or repurchase or otherwise, and the time for payment has not been extended;

● if we fail to observe or perform any other covenant contained in the debt securities or the indentures, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive notice from the trustee or we and the trustee receive notice from the 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.

We will describe in each applicable prospectus supplement any additional events of default relating to the relevant series of debt securities.

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, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default arises due to the occurrence of certain specified bankruptcy, insolvency or reorganization events, the unpaid principal, premium, if any, 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 indentures, 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 or security satisfactory to it against any loss, liability or expense. 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.

The indentures will provide that if an event of default has occurred and is continuing, the trustee will be required in the exercise of its powers to use the degree of care that a prudent person would use in the conduct of its own affairs. The trustee, however, may refuse to follow any direction that conflicts with law or the indenture, or that the trustee determines is unduly prejudicial to the rights of any other holder of the relevant series of debt securities, or that would involve the trustee in personal liability. Prior to taking any action under the indentures, the trustee will be entitled to indemnification against all costs, expenses and liabilities that would be incurred by taking or not taking such action.

A holder of the debt securities of any series will have the right to institute a proceeding under the indentures 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 a written request and such holders have offered reasonable indemnity to the trustee or security satisfactory to it against any loss, liability or expense or to be incurred in compliance with instituting the proceeding as trustee; 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, or other defaults that may be specified in the applicable prospectus supplement.

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

The indentures will provide that if a default occurs and is continuing and is actually known to a responsible officer of the trustee, the trustee must mail to each holder notice of the default within the earlier of 90 days after it occurs and 30 days after it is known by a responsible officer of the trustee or written notice of it is received by the trustee, unless such default has been cured or waived. Except in the case of a default in the payment of principal or premium of, or interest on, any debt security or certain other defaults specified in an indenture, the trustee shall be protected in withholding such notice if and so long as the Board of Directors, the executive committee or a trust committee of directors, or responsible officers of the trustee, in good faith determine that withholding notice is in the best interests of holders of the relevant series of debt securities.

**Modification of Indenture; Waiver**

Subject to the terms of the indenture for any series of debt securities that we may issue, we and the trustee may change an indenture without the consent of any holders with respect to the following specific matters:

● to fix any ambiguity, defect or inconsistency in the indenture;

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

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

● 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 provide for the issuance of, and establish the form and terms and conditions of, the debt securities of any series as provided 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 hereunder by a successor trustee;

● to provide for uncertificated debt securities and to make all appropriate changes for such purpose;

● to add such new covenants, restrictions, conditions or provisions for the benefit of the holders, 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 to us in the indenture; or

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

In addition, under the indentures, 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, subject to the terms of the indenture for any series of debt securities that we may issue or otherwise provided in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may only make the following changes with the consent of each holder of any outstanding debt securities affected:

● extending the stated maturity of the series of debt securities;

● reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption or repurchase 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, subject to the terms of the indenture and any limitation otherwise provided in the prospectus supplement applicable to a particular series of debt securities, we may elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:

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

● replace stolen, lost or mutilated 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 will deposit with the trustee money or government obligations sufficient to pay all the principal of, and any premium 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 otherwise specify in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indentures will provide 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 another depositary named by us and identified in a prospectus supplement with respect to that series. See "*Legal Ownership of Securities*" below for a further description of the terms relating to any book-entry securities.

At the option of the holder, subject to the terms of the indentures 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 indentures 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 make 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 and is under no obligation to exercise any of the powers given it by the indentures 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. However, 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.

**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 payment.

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

**Ranking Debt Securities**

The subordinated debt securities will be unsecured and will be subordinate and junior in priority of payment to certain other indebtedness to the extent described in a prospectus supplement. The subordinated indenture does not limit the amount of subordinated debt securities that we may issue. It also does not limit us from issuing any other secured or unsecured debt.

The senior debt securities will be unsecured and will rank equally in right of payment to all our other senior unsecured debt. The senior indenture does not limit the amount of senior debt securities that we may issue. It also does not limit us from issuing any other secured or unsecured debt.

**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 offered 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 may issue the warrants under a warrant agreement that we will enter into with a warrant agent to be selected by us. If selected, the warrant agent will act solely as an agent of ours in connection with the warrants and will not act as an agent for the holders or beneficial owners of the warrants. If applicable, we will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a Current Report on Form 8-K that we file with the SEC, the form of warrant agreement, including a form of warrant certificate, that describes the terms of the particular series of warrants we are offering before the issuance of the related series of warrants. 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 a particular series of warrants. We urge you to read the applicable prospectus supplement and any applicable free writing prospectus related to the particular series of warrants that we sell under this prospectus, as well as the complete warrant agreements and warrant certificates that contain the terms of the warrants.

**General**

We will describe in the applicable prospectus supplement the terms relating to a series of warrants, including:

● the offering price and aggregate number of warrants offered;

● the currency for which the warrants may be purchased;

● if applicable, 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;

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

● 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, 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 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;

● 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;

● United States federal income tax consequences 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 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; or

● 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.

**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.

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 us or the warrant agent as applicable.

Upon receipt of the required payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will issue and deliver the securities purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificate are exercised, then we will issue a new warrant certificate for the remaining amount of warrants. If we so indicate in the applicable prospectus supplement, holders of the warrants may surrender securities as all or part of the exercise price for warrants.

**Enforceability of Rights by Holders of Warrants**

If selected, each warrant agent 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.

**DESCRIPTION OF UNITS**

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 units that we may offer under this prospectus.

While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units 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 will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a Current Report on Form 8-K that we file with the SEC, the form of unit agreement that describes the terms of the series of units we are offering, and any supplemental agreements, before the issuance of the related series of units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement and any supplemental agreements applicable to a particular series of units. We urge you to read the applicable prospectus supplements related to the particular series of units that we sell under this prospectus, as well as the complete unit agreement and any supplemental agreements that contain the terms of the units.

**General**

We may issue units comprised of one or more debt securities, shares of common stock, shares of preferred stock and warrants in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.

We will describe in the applicable prospectus supplement the terms of the series of units, including:

● the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;

● any provisions of the governing unit agreement that differ from those described below; and

● any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.

The provisions described in this section, as well as those described under "*Description of Capital Stock*," "*Description of Debt Securities*" and "*Description of Warrants*" will apply to each unit and to any common stock, preferred stock, debt security or warrant included in each unit, respectively.

***Unit Agent***

The name and address of the unit agent, if any, for any units we offer will be set forth in the applicable prospectus supplement.

**Issuance in Series**

We may issue units in such amounts and in numerous distinct series as we determine.

**Enforceability of Rights by Holders of Units**

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

We, the unit agents and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary. See "*Legal Ownership of Securities*."

**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 or warrant agent 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 legal 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 holder, we have no further responsibility for the payment or notice even if that 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 holders, 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 legal 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, The Depository Trust Company, New York, NY, known as DTC, 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. We and the trustee also do not 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.

A 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 being offered hereby in one or more of the following ways from time to time:

● through agents to the public or to investors;

● to underwriters for resale to the public or to investors;

● negotiated transactions;

● block trades;

● directly to investors; or

● through a combination of any of these methods of sale.

As set forth in more detail below, the securities may be distributed 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 will set forth in a prospectus supplement the terms of that particular offering of securities, including:

● the name or names of any agents or underwriters;

● the purchase price of the securities being offered 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 initial public offering price;

● any discounts or concessions allowed or re-allowed or paid to dealers; and

● any securities exchanges or markets on which such securities may be listed.

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

If underwriters are used in an offering, we will execute an underwriting agreement with such underwriters and will specify the name of each underwriter and the terms of the transaction (including any underwriting discounts and other terms constituting compensation of the underwriters and any dealers) in a prospectus supplement. The securities may be offered to the public either through underwriting syndicates represented by managing underwriters or directly by one or more investment banking firms or others, as designated. If an underwriting syndicate is used, the managing underwriter(s) will be specified on the cover of the prospectus supplement. If underwriters are used in the sale, the offered securities will be acquired by the underwriters for their own accounts and may be resold from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Any public offering price and any discounts or concessions allowed or re-allowed or paid to dealers may be changed from time to time. Unless otherwise set forth in the prospectus supplement, the obligations of the underwriters to purchase the offered securities will be subject to conditions precedent and the underwriters will be obligated to purchase all of the offered securities if any are purchased.

We may grant to the underwriters options to purchase additional securities to cover over-allotments, if any, at the public offering price, with additional underwriting commissions or discounts, as may be set forth in a related prospectus supplement. The terms of any over-allotment option will be set forth in the prospectus supplement for those securities.

If we use a dealer in the sale of the securities being offered pursuant to this prospectus or any prospectus supplement, we will sell the securities to the dealer, as principal. The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale. The names of the dealers and the terms of the transaction will be specified in a prospectus supplement.

We may sell the 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, any agent will act on a best-efforts basis for the period of its appointment.

We may authorize agents or underwriters to solicit offers by 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.

In connection with the sale of the securities, underwriters, dealers or agents may receive compensation from us or from purchasers of the common stock for whom they act as agents in the form of discounts, concessions or commissions. Underwriters may sell the securities to or through dealers, and those dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters or commissions from the purchasers for whom they may act as agents. Underwriters, dealers and agents that participate in the distribution of the securities, and any institutional investors or others that purchase common stock directly and then resell the securities, may be deemed to be underwriters, and any discounts or commissions received by them from us and any profit on the resale of the common stock by them may be deemed to be underwriting discounts and commissions under the Securities Act.

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

We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties (including the writing of options), or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with such a transaction, the third parties may, pursuant to this prospectus and the applicable prospectus supplement, sell securities covered by this prospectus and the applicable prospectus supplement. If so, the third party may use securities borrowed from us or others to settle such sales and may use securities received from us to close out any related short positions. We may also loan or pledge securities covered by this prospectus and the applicable prospectus supplement to third parties, who may sell the loaned securities or, in an event of default in the case of a pledge, sell the pledged securities pursuant to this prospectus and the applicable prospectus supplement. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement or in a post-effective amendment.

To facilitate an offering of a series of securities, persons participating in the offering may engage in transactions that stabilize, maintain, or otherwise affect the market price of the securities. This may include over-allotments or short sales of the securities, which involves the sale by persons participating in the offering of more securities than have been sold to them by us. In those circumstances, such persons would cover such over-allotments or short positions by purchasing in the open market or by exercising the over-allotment option granted to those persons. In addition, those persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to underwriters or dealers participating in any such offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. Such transactions, if commenced, may be discontinued at any time. We make no representation or prediction as to the direction or magnitude of any effect that the transactions described above, if implemented, may have on the price of our securities.

Unless otherwise specified in the applicable prospectus supplement, each class or series of securities will be a new issue with no established trading market, other than our common stock, which is listed on The Nasdaq Capital Market. We may elect to list any other class or series of securities on any exchange or market, but we are not obligated to do so. It is possible that one or more underwriters may make a market in a class or series of securities, but the underwriters will not be obligated to do so and may discontinue any market making at any time without notice. We cannot give any assurance as to the liquidity of the trading market for any of the securities.

In order to comply with the securities laws of some U.S. states or territories, if applicable, the securities offered pursuant to this prospectus will be sold in those states only through registered or licensed brokers or dealers. In addition, in some states securities may not be sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and complied with.

Any underwriter may engage in overallotment, stabilizing transactions, short covering transactions and penalty bids in accordance with Regulation M under the Exchange Act. 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 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 these activities at any time.

Any underwriters who are qualified market makers on The Nasdaq Capital Market may engage in passive market making transactions in the securities on The Nasdaq Capital Market 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.

**LEGAL MATTERS**

The validity of the issuance of the securities offered hereby will be passed upon for us by Sheppard, Mullin, Richter & Hampton LLP, New York, NY. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

**EXPERTS**

The consolidated financial statements as of and for the years ended December 31, 2022 and 2021, included in our Annual Report on Form 10-K for the year ended December 31, 2022, have been audited by Mayer Hoffman McCann P.C., independent registered public accounting firm, as set forth in their report (which report includes an explanatory paragraph regarding the existence of substantial doubt about the Company's ability to continue as a going concern), and have been incorporated herein by reference in reliance upon such report, given on the authority of such firm as experts in auditing and accounting in giving said reports.

**WHERE YOU CAN FIND MORE INFORMATION**

This prospectus constitutes a part of the registration statement on Form S-3 that we have filed with the SEC under the Securities Act. As permitted by the SEC's rules, this prospectus and any accompanying prospectus supplement, which forms a part of the registration statement, do not contain all of the information that is included in the registration statement. You will find additional information about us in the registration statement. Any statement made in this prospectus or any accompanying prospectus supplement concerning 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.

We are subject to the reporting requirements of the Exchange Act and file annual, quarterly and current reports, proxy statements and other information with the SEC. You can read our SEC filings, including the registration statement, over the internet at the SEC's website at *http://www.sec.gov*. We also maintain a website at *www.hillstreambio.com/*, at which you may access these materials free of charge as soon as reasonably practicable after they are electronically filed with, or furnished to, the SEC. The information contained in, or that can be accessed through, our website is not part of this prospectus.

You may also read and copy any document we file with the SEC at its public reference facilities at 100 F Street, N.E., Room 1580, Washington, DC 20549. You may also obtain copies of these documents at prescribed rates by writing to the Public Reference Section of the SEC at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the operation of the public reference facilities. You may also request a copy of these filings, at no cost, by writing or telephoning us at: 1200 Route 22 East, Suite 2000, Bridgewater, NJ 08807, (908) 955-3140.

**INCORPORATION OF DOCUMENTS BY REFERENCE**

This prospectus is part of the registration statement, but the registration statement includes and incorporates by reference additional information and exhibits. The SEC permits us to "incorporate by reference" the information contained in documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents rather than by including them in this prospectus. Information that is incorporated by reference is considered to be part of this prospectus and you should read it with the same care that you read this prospectus and any subsequent prospectus supplement. Information that we file later with the SEC will automatically update and supersede the information that is either contained, or incorporated by reference, in this prospectus, and will be considered to be a part of this prospectus from the date those documents are filed.

We incorporate by reference the documents listed below, all filings filed by us pursuant to the Exchange Act after the date of the registration statement of which this prospectus and any accompanying prospectus supplement forms a part, and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the time that all securities covered by this prospectus have been sold; provided, however, that we are not incorporating any information furnished under either Item 2.02 or Item 7.01 of any Current Report on Form 8-K and exhibits furnished on such form that relate to such items:

● our Annual Report on [Form 10-K](https://www.sec.gov/Archives/edgar/data/1861657/000149315223007977/form10-k.htm) for the year ended December 31, 2022 filed with the SEC on March 16, 2023;

● our Current Report on [Form 8-K](https://www.sec.gov/Archives/edgar/data/1861657/000149315223004997/form8-k.htm) filed with the SEC on February 14, 2023; and

● the description of our common stock contained in our Registration Statement on [Form 8-A](https://www.sec.gov/Archives/edgar/data/1861657/000149315222000761/form8-a12b.htm) filed with the Commission on January 10, 2022, including any amendments or reports filed with the SEC for the purposes of updating such description.

Any statements made in a document incorporated by reference in this prospectus are deemed to be modified or superseded for purposes of this prospectus to the extent that a statement in this prospectus or in any other subsequently filed document, which is also incorporated by reference, modifies or supersedes the statement. Any statement made in this prospectus is deemed to be modified or superseded to the extent a statement in any subsequently filed document, which is incorporated by reference in this prospectus, modifies or supersedes such statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

The information relating to us contained in this prospectus should be read together with the information in the documents incorporated by reference. In addition, certain information, including financial information, contained in this prospectus or incorporated by reference in this prospectus should be read in conjunction with documents we have filed with the SEC.

We will provide to each person, including any beneficial holder, to whom a prospectus is delivered, at no cost, upon written or oral request, a copy of any or all of the information that has been incorporated by reference in the prospectus but not delivered with the prospectus. Requests for documents should be by writing to or telephoning us at the following address: Hillstream BioPharma, Inc., 1200 Route 22 East, Suite 2000, Bridgewater, NJ 08807, (908) 955-3140. Exhibits to these filings will not be sent unless those exhibits have been specifically incorporated by reference in such filings.

**Shares of Common Stock**

**PROSPECTUS SUPPLEMENT**

President Street Global

July 23, 2025