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Monopar Therapeutics (MNPR) CFO nets shares from RSU vesting and tax withholding

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

Rhea-AI Filing Summary

Monopar Therapeutics’ Chief Financial Officer Vu Quan Anh reported routine equity compensation activity tied to restricted stock units. On the vesting date, 1,228 restricted stock units converted into the same number of common shares. The company withheld 507 shares to cover tax obligations, a non‑market disposition.

Following these transactions, Vu Quan Anh directly holds 2,221 shares of common stock. He also retains 8,598 unvested restricted stock units from a 9,826-unit grant awarded on December 2, 2025, which began vesting on June 30, 2026 and is scheduled to fully vest by December 31, 2029.

Positive

  • None.

Negative

  • None.
Insider Vu Quan Anh
Role Chief Financial Officer
Type Security Shares Price Value
Exercise Restricted Stock Unit 1,228 $0.00 --
Exercise Common Stock 1,228 $0.00 --
Tax Withholding Common Stock 507 $92.59 $47K
Holdings After Transaction: Restricted Stock Unit — 8,598 shares (Direct, null); Common Stock — 2,728 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 December 2, 2025, the reporting person was granted 9,826 restricted stock units, vesting 6/48ths (1,228) on June 30, 2026, and 3/48ths (614 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 vested 1,228 shares Restricted stock units converted to common stock on June 30, 2026
Shares withheld for tax 507 shares at $92.59 Withheld by issuer to pay RSU-related withholding tax
Common shares held after 2,221 shares Direct ownership following RSU vesting and tax withholding
Original RSU grant 9,826 units Grant awarded on December 2, 2025 to CFO Vu Quan Anh
Unvested RSUs remaining 8,598 units RSUs still outstanding after 1,228 vested and settled
Initial vesting tranche 6/48ths (1,228 units) First vesting on June 30, 2026 from RSU grant
Ongoing vesting schedule 3/48ths every 3 months Quarterly vesting until December 31, 2029
Restricted Stock Unit financial
"On December 2, 2025, the reporting person was granted 9,826 restricted stock units"
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
withholding tax financial
"shares withheld by the issuer to pay for the applicable withholding tax due"
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.
vested financial
"vested 6/48ths (1,228) on June 30, 2026, and 3/48ths (614 shares) every 3 months"
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
contingent right financial
"Each restricted stock unit represents a contingent right to receive one share"
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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*
Vu Quan Anh

(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 Financial 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 Stock06/30/2026M1,228A(1)2,728D
Common Stock06/30/2026F507(2)D$92.592,221D
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)06/30/2026M1,228 (3) (3)Common Stock1,228$08,598D
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 December 2, 2025, the reporting person was granted 9,826 restricted stock units, vesting 6/48ths (1,228) on June 30, 2026, and 3/48ths (614 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 Vu07/02/2026
** 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)

FAQ

What insider transaction did Monopar Therapeutics (MNPR) report for its CFO?

Monopar Therapeutics’ CFO Vu Quan Anh reported RSU vesting and related tax withholding. 1,228 restricted stock units converted into common shares, and 507 shares were withheld to cover taxes, leaving him with 2,221 common shares held directly.

How many Monopar Therapeutics (MNPR) shares does the CFO hold after this Form 4?

After the reported transactions, CFO Vu Quan Anh directly holds 2,221 shares of Monopar Therapeutics common stock. These holdings reflect RSU vesting on June 30, 2026 and share withholding to cover associated tax obligations.

Were Monopar Therapeutics (MNPR) shares sold on the open market in this Form 4?

No open-market sales occurred in this Form 4. Shares were withheld by Monopar Therapeutics to pay applicable withholding tax due on RSU vesting, a non-market disposition rather than a discretionary sale into the market.

What RSU grant underlies the Monopar Therapeutics (MNPR) CFO’s Form 4 filing?

The filing relates to a grant of 9,826 restricted stock units awarded on December 2, 2025. These units vest 6/48ths (1,228 units) on June 30, 2026 and 3/48ths every three months until full vesting on December 31, 2029.

How many unvested RSUs does the Monopar Therapeutics (MNPR) CFO still hold?

After 1,228 RSUs vested and settled into common shares, the CFO retains 8,598 unvested restricted stock units. These remaining RSUs continue to vest quarterly through December 31, 2029 under the original grant schedule.

What does the tax-withholding transaction mean in the Monopar Therapeutics (MNPR) Form 4?

The tax-withholding entry reflects 507 shares withheld by Monopar Therapeutics to satisfy withholding tax due at RSU vesting. This is an automatic mechanism to pay taxes, not an open-market sale initiated by the CFO.