# EDGAR Filing Document

**Accession Number:** 0001645469
**File Stem:** 0001437749-26-022086
**Filing Date:** 2026-6
**Character Count:** 11044
**Document Hash:** 6a2d93d57f5009aca3f8e3c34b06346c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-022086.hdr.sgml**: 20260630

**ACCESSION NUMBER**: 0001437749-26-022086

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20260630

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260630

**DATE AS OF CHANGE**: 20260630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Monopar Therapeutics
- **CENTRAL INDEX KEY:** 0001645469
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 320463781
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39070
- **FILM NUMBER:** 261138050

**BUSINESS ADDRESS:**
- **STREET 1:** 1000 SKOKIE BLVD SUITE 350
- **CITY:** WILMETTE
- **STATE:** IL
- **ZIP:** 60091
- **BUSINESS PHONE:** 8473880349

**MAIL ADDRESS:**
- **STREET 1:** 1000 SKOKIE BLVD SUITE 350
- **CITY:** WILMETTE
- **STATE:** IL
- **ZIP:** 60091

?xml version='1.0' encoding='ASCII'? mnpr20260629_8k.htm

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**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): **June 30, 2026**

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| |
|:---|
| **MONOPAR THERAPEUTICS INC.** |
| (Exact name of registrant as specified in its charter) |

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| | | |
|:---|:---|:---|
| **Delaware** | **001-39070** | **32-0463781** |
| (State or other jurisdiction<br>of incorporation) | (Commission<br>File Number) | (I.R.S. Employer<br>Identification No.) |

---

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| | |
|:---|:---|
| **1000 Skokie Blvd., Suite 350, Wilmette, IL** | **60091** |
| (Address of principal executive offices) | (Zip Code) |

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**<u>(</u><u>847</u><u>)</u> <u>388-0349</u>**

Registrant's telephone number, including area code

**<u>N/A</u>**

(Former name or former address, if changed since last report)

**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| **Common Stock, $0.001 par value** | **MNPR** | **The Nasdaq Stock Market LLC (Nasdaq Capital Market)** |

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 7.01. Regulation FD Disclosure**

On June 30, 2026, Monopar Therapeutics Inc. ("Monopar") issued a press release announcing that the U.S. Food and Drug Administration granted Rare Pediatric Disease designation to ALXN1840 (tiomolibdate choline).

The press release is furnished as Exhibit 99.1 and incorporated herein by reference.

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**Item 9.01 Financial Statements and Exhibits.**

(d) Exhibits.

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| | |
|:---|:---|
| **Exhibit**<br>**No.**  | **Description** |
| 99.1 | [Press Release Dated June 30, 2026.](ex_982910.htm) |
| 104 | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document. |

---

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**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **Monopar Therapeutics Inc.** | **Monopar Therapeutics Inc.** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Date: June 30, 2026 | By: | /s/ Quan Vu |
|  | Name: | Quan Vu |
|  | Title: | Chief Financial Officer |

---

## Exhibit 99.1

Exhibit 99.1

**Monopar Therapeutics Receives FDA Rare Pediatric Disease Designation for ALXN1840 for the Treatment of Wilson Disease**

WILMETTE, Ill., June 30, 2026 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. ("Monopar" or the "Company") (Nasdaq: MNPR), a clinical-stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, today announced that the U.S. Food and Drug Administration (FDA) has granted Rare Pediatric Disease (RPD) designation to ALXN1840 (tiomolibdate choline, TMC), the Company's late-stage candidate for the treatment of Wilson disease.

The FDA grants RPD designation to therapies intended to treat serious or life-threatening diseases that primarily affect children from birth to 18 years of age. The designation provides the Company with the potential at the time of NDA approval to receive a pediatric Priority Review Voucher (PRV), which can be used to obtain priority review of a subsequent marketing application or sold or transferred to another sponsor. Priority review can reduce the FDA's target review time by several months.

"Receiving Rare Pediatric Disease designation for ALXN1840 underscores the serious impact that Wilson disease has on patients and reinforces the urgency of bringing forward a new treatment option," said Chandler Robinson, M.D., Chief Executive Officer of Monopar.

**About Wilson Disease**

Wilson disease is a rare genetic disorder that affects approximately 1 in 30,000 people worldwide. It is caused by mutations in the ATP7B gene, which impairs the body's ability to excrete copper. It is characterized by toxic accumulation of copper in the liver, brain, and other organs, leading to progressive and potentially fatal outcomes if untreated.

**About ALXN1840**

ALXN1840 (tiomolibdate choline, TMC) is a novel first-in-class albumin tripartite complex (ATC) activator under investigation for the treatment of Wilson disease. ALXN1840 rapidly mobilizes and tightly sequesters excess copper in ATCs, suppressing its redox reactivity, limiting oxidative damage, and blocking transport across the blood–brain barrier. Clinical data demonstrate that ALXN1840 improves copper balance by increasing fecal copper excretion. In the Phase 3 pivotal trial, ALXN1840 met the primary endpoint by demonstrating rapid and sustained copper mobilization significantly greater than standard of care over 48 weeks in both previously treated and untreated patients. Durable clinical improvement and a favorable safety and tolerability profile were observed across 645 patient-years of follow-up in 266 patients. ALXN1840 is an oral tablet with a once-a-day dosing regimen.

**About Monopar Therapeutics Inc.**

Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including MNPR-101-Zr (Phase 1) for imaging advanced cancers along with MNPR-101-Lu (Phase 1a) and MNPR-101-Ac (late preclinical) for the treatment of advanced cancers. For more information, visit: <u>www.monopartx.com</u>.

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Exhibit 99.1

**Forward-Looking Statements**

Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words "may," "will," "could," "would," "should," "expect," "plan," "anticipate," "intend," "believe," "estimate," "predict," "project," "potential," "continue," "target" and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. An example of a forward-looking statement includes the statement concerning: that the designation (RPD) provides the Company with the potential at the time of (ALXN1840) NDA approval to receive a pediatric Priority Review Voucher (PRV). The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to whether the ALXN1840 marketing application will receive marketing approval and, if approved, whether Monopar will be awarded a Priority Review Voucher; whether, if awarded, the Priority Review Voucher can be used to obtain priority review of a subsequent marketing application or sold or transferred to another sponsor; the continued authorization and availability of the Rare Pediatric Disease Priority Review Voucher program; uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840 and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar's ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar's ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar's views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date.

**CONTACT:**

**Monopar Therapeutics Inc.**

Investor Relations

Quan Vu

Chief Financial Officer

<u>vu@monopartx.com</u>

Follow Monopar on social media for updates:

X: @MonoparTx LinkedIn: Monopar Therapeutics

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Source: Monopar Therapeutics Inc.