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Monopar Therapeutics COO receives 4,384 vested shares

The transaction also included issuer withholding of 1,944 shares for applicable taxes at $79.67 per share.

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Form Type
4

Rhea-AI Filing Summary

Monopar Therapeutics (MNPR) Chief Operating Officer Andrew Cittadine had 4,384 restricted stock units vest and settle on September 30, 2026, resulting in 4,384 common shares. The issuer withheld 1,944 common shares to pay applicable withholding tax at $79.67 per share. His reported post-transaction restricted stock unit balance was 35,115 units.

Insider Cittadine Andrew
Role Chief Operating Officer
Type Security Shares Price Value
Exercise Restricted Stock Unit F1, F3, F4, F5 4,384 $0.00 $0.00
Exercise Common Stock F1 4,384 -- --
Tax Withholding Common Stock F2 1,944 $79.67 $155K
Holdings After Transaction: Restricted Stock Unit — 35,115 contracts (Direct); Common Stock — 58,054 shares (Direct)
Footnotes (5)
  1. F1. Represents shares acquired on vesting and settlement of restricted stock units.
  2. F2. Represents shares withheld by the issuer to pay for the applicable withholding tax due upon vesting of restricted stock units.
  3. F3. On February 1, 2023, the reporting person was granted 15,647 restricted stock units, vesting 6/48ths (1,956 shares) on June 30, 2023, and 3/48ths (978 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
  4. F4. On March 4, 2025, the reporting person was granted 40,581 restricted stock units, vesting 6/48ths (5,073 shares) on June 30, 2025, and 3/48ths (2,536 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2028. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
  5. F5. On December 2, 2025, the reporting person was granted 13,919 restricted stock units, vesting 6/48ths (1,740) on June 30, 2026, and 3/48ths (870 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2029. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
Restricted stock units vested and settled 4,384 units September 30, 2026
Common shares issued 4,384 shares Upon vesting and settlement on September 30, 2026
Common shares withheld for withholding tax 1,944 shares September 30, 2026
Reported price per withheld share $79.67 per share Withholding tax payment on September 30, 2026
Post-transaction restricted stock unit balance 35,115 units Following the September 30, 2026 transaction
restricted stock units financial
"shares acquired on vesting and settlement of restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
vesting and settlement financial
"acquired on vesting and settlement of restricted stock units"
withholding tax financial
"withheld by the issuer to pay for the applicable withholding tax"
Withholding tax is a government-required portion of a payment—such as dividends, interest, or salary—that the payer keeps back and sends directly to tax authorities before the recipient receives the money. For investors it reduces the cash they actually get and changes the after-tax return on an investment; rates and refund or credit rules vary by country and can materially affect comparisons between similar investments, like a cashier holding part of a bill to cover taxes.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MNPR shares did Andrew Cittadine receive and have withheld?

On September 30, 2026, 4,384 common shares were issued upon vesting and settlement of restricted stock units, and Monopar withheld 1,944 shares to pay applicable withholding tax at $79.67 per share.

When are Andrew Cittadine's MNPR restricted stock unit grants scheduled to finish vesting?

The grants made February 1, 2023, March 4, 2025, and December 2, 2025, are scheduled to be fully vested on December 31, 2026, December 31, 2028, and December 31, 2029, respectively. Each grant's schedule includes installments every three months after its initial vesting tranche.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Cittadine Andrew

(Last)(First)(Middle)
1000 SKOKIE BLVD SUITE 350

(Street)
WILMETTE ILLINOIS 60091

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Monopar Therapeutics [ MNPR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Operating Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/30/2026M4,384A(1)59,998D
Common Stock09/30/2026F1,944(2)D$79.6758,054D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit(1)09/30/2026M4,384 (3)(4)(5) (3)(4)(5)Common Stock4,384$035,115D
Explanation of Responses:
1. Represents shares acquired on vesting and settlement of restricted stock units.
2. Represents shares withheld by the issuer to pay for the applicable withholding tax due upon vesting of restricted stock units.
3. On February 1, 2023, the reporting person was granted 15,647 restricted stock units, vesting 6/48ths (1,956 shares) on June 30, 2023, and 3/48ths (978 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2026. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
4. On March 4, 2025, the reporting person was granted 40,581 restricted stock units, vesting 6/48ths (5,073 shares) on June 30, 2025, and 3/48ths (2,536 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2028. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
5. On December 2, 2025, the reporting person was granted 13,919 restricted stock units, vesting 6/48ths (1,740) on June 30, 2026, and 3/48ths (870 shares) every 3 months thereafter until the RSU is fully vested on December 31, 2029. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. Disposed of restricted stock units were surrendered in exchange for issuance of common stock upon vesting and settlement.
/s/ Quan Vu, Attorney-in-fact10/02/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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