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Monopar Therapeutics (MNPR) COO gains stock via RSU vesting and tax withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Monopar Therapeutics Chief Operating Officer Andrew Cittadine reported routine equity compensation activity involving restricted stock units and related tax withholding. On June 30, 2026, 5,254 restricted stock units converted into the same number of common shares at a stated price of $0.00 per share. Of the resulting shares, 2,309 were withheld by the company to cover applicable withholding taxes tied to the vesting event. Following these transactions, Cittadine directly held 57,923 shares of Monopar common stock and 39,499 restricted stock units that remain outstanding and subject to future vesting schedules.

Positive

  • None.

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Insider Cittadine Andrew
Role Chief Operating Officer
Type Security Shares Price Value
Exercise Restricted Stock Unit 5,254 $0.00 --
Exercise Common Stock 5,254 $0.00 --
Tax Withholding Common Stock 2,309 $92.59 $214K
Holdings After Transaction: Restricted Stock Unit — 39,499 shares (Direct, null); Common Stock — 57,923 shares (Direct, null)
Footnotes (1)
  1. Represents shares acquired on vesting and settlement of restricted stock units. Represents shares withheld by the issuer to pay for the applicable withholding tax due upon vesting of restricted stock units. 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. 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. 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.
RSUs converted to common stock 5,254 shares Restricted stock units vested and settled on June 30, 2026
Shares withheld for taxes 2,309 shares Withheld by issuer to cover tax on RSU vesting
Common shares held after transactions 57,923 shares Direct ownership by Andrew Cittadine following June 30, 2026 activity
Outstanding restricted stock units 39,499 RSUs Remaining RSU position after June 30, 2026 settlement
RSU grant on March 4, 2025 40,581 RSUs Vesting 6/48ths initially, then 3/48ths quarterly through December 31, 2028
RSU grant on December 2, 2025 13,919 RSUs Vesting 6/48ths initially, then 3/48ths quarterly through December 31, 2029
restricted stock units financial
"On February 1, 2023, the reporting person was granted 15,647 restricted stock units, vesting 6/48ths..."
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.
withholding tax financial
"Represents shares withheld by the issuer to pay for the applicable withholding tax due upon vesting..."
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.
vesting financial
"vesting 6/48ths (5,073 shares) on June 30, 2025, and 3/48ths (2,536 shares) every 3 months thereafter..."
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
contingent right financial
"Each restricted stock unit represents a contingent right to receive one share of common stock..."
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FAQ

What insider transactions did Monopar Therapeutics (MNPR) report for Andrew Cittadine?

Monopar Therapeutics reported that COO Andrew Cittadine had restricted stock units vest into 5,254 common shares, while 2,309 shares were withheld to cover tax obligations. These transactions reflect routine equity compensation and related tax settlement rather than open-market buying or selling.

How many Monopar (MNPR) shares does Andrew Cittadine hold after this Form 4?

After the reported transactions, Andrew Cittadine directly holds 57,923 shares of Monopar common stock. He also has 39,499 restricted stock units outstanding that may convert into additional shares over time, subject to their vesting schedules described in the compensation footnotes.

Were Andrew Cittadine’s Monopar (MNPR) transactions open-market buys or sells?

The transactions were not open-market trades. They reflect vesting of 5,254 restricted stock units into common stock and a disposition of 2,309 shares to satisfy withholding taxes, both characterized as compensation and tax-withholding events rather than discretionary purchases or sales.

What do the restricted stock units in the Monopar (MNPR) filing represent?

Each restricted stock unit represents a contingent right to receive one share of Monopar common stock upon vesting. The filing notes multi-year vesting schedules, with portions vesting every three months until the awards are fully vested and settled in shares, assuming continued eligibility.

How many Monopar (MNPR) restricted stock units remain for Andrew Cittadine?

Following the June 30, 2026 activity, Andrew Cittadine has 39,499 restricted stock units outstanding. These units were granted under prior awards and vest in scheduled installments through December 31, 2029, potentially adding common shares as each tranche vests and settles.

Why were 2,309 Monopar (MNPR) shares disposed of in this Form 4?

The 2,309 shares were withheld by Monopar to pay applicable withholding taxes due upon vesting of restricted stock units. This tax-withholding disposition is a common mechanism where the issuer retains a portion of newly delivered shares instead of the insider paying cash for the tax liability.
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)
06/30/2026
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 Stock06/30/2026M5,254A(1)57,923D
Common Stock06/30/2026F2,309(2)D$92.5955,614D
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)06/30/2026M5,254 (3)(4)(5) (3)(4)(5)Common Stock5,254$039,499D
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-fact07/02/2026
** 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)