Form 144

144/A: Filer Information

Filer CIK

0001207790

Filer CCC

XXXXXXXX

Previous Accession Number Of The Filing

0001628280-26-047461

Is this a LIVE or TEST Filing?

LIVE

TEST

Submission Contact Information

Name

Phone

E-Mail Address

144/A: Issuer Information

Name of Issuer

Monopar Therapeutics Inc.

SEC File Number

Address of Issuer

1000 Skokie Blvd
Suite 350
Wilmette
ILLINOIS
60091

Phone

847-388-0349

Name of Person for Whose Account the Securities are To Be Sold

Arthur Klausner

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Former Board Member

144/A: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	MLPFS One Bryant Park 40th fl New York NY 10036	5000	476967	0	07/08/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144/A: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	12/31/2023	Restricted Stock Unit Vesting	Arthur Klausner	506	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	09/30/2023	Restricted Stock Unit Vesting	Arthur Klausner	507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	06/30/2023	Restricted Stock Unit Vesting	Arthur Klausner	507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	03/31/2023	Restricted Stock Unit Vesting	Arthur Klausner	507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	12/31/2022	Restricted Stock Unit Vesting	Arthur Klausner	571	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	09/30/2022	Restricted Stock unit vesting	Arthur Klausner	572	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	06/30/2022	Restricted stock unit vesting	Arthur Klausner	572	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	03/31/2022	Restricted stock unit vesting	Arthur Klausner	572	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	03/31/2021	Restricted stock unit vesting	Arthur Klausner	150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	06/30/2021	Restricted stock unit vesting	Arthur Klausner	150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	09/30/2021	Restricted stock unit vesting	Arthur Klausner	150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	12/31/2021	Restricted stock unit vesting	Arthur Klausner	151	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	09/30/2020	Restricted stock unit vesting	Arthur Klausner	21	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	12/31/2020	Restricted stock unit vesting	Arthur Klausner	64	07/08/2026	Granted as part of issuer equity compensation plan

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144/A: Securities Sold During The Past 3 Months

Nothing to Report

144/A: Remarks and Signature

Remarks

Date of Notice

07/10/2026

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature