Kim R. Tsuchimoto - 26 Aug 2026 Form 4/A - Amendment Insider Report for Monopar Therapeutics (MNPR)

Reporting relationship: Director
Issuer ticker: MNPR
Reported as of: 26 Aug 2026
Net transaction value: -$455,567
SEC form: 4/A - Amendment
Accepted by SEC: 28 Aug 2026, 20:18:00 UTC
Original report date: 27 Aug 2026
Prior SEC filing: 08 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Quan Vu, Attorney-in-fact

Key filing fact

Kim R. Tsuchimoto filed Form 4/A - Amendment for Monopar Therapeutics (MNPR) on 28 Aug 2026.

Key facts

This page summarizes Kim R. Tsuchimoto's Form 4/A - Amendment filing for Monopar Therapeutics (MNPR).
10 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 28 Aug 2026, 20:18.

Change

Previous filing in this sequence was filed on 08 Dec 2025.
Current net transaction value: -$455,567.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001333516 Primary reporting owner

Tsuchimoto Kim R

Relationship: Director
Address: 1000 SKOKIE BLVD SUITE 350, WILMETTE
Signature: /s/ Quan Vu, Attorney-in-fact
Signature date: 28 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MNPR transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,055
Change %
Price: $30.00^*
Shares after: 2,055
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1

MNPR transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,035
Change %: +99%
Price: $14.00^*
Shares after: 4,090
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1

MNPR transaction

Common Stock

Sale

Transaction value: $52,783
Shares: -485
Change %: -12%
Price: $108.83
Shares after: 3,605
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F4

MNPR transaction

Common Stock

Sale

Transaction value: $67,379
Shares: -615
Change %: -17%
Price: $109.56
Shares after: 2,990
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F5

MNPR transaction

Common Stock

Sale

Transaction value: $77,455
Shares: -700
Change %: -23%
Price: $110.65
Shares after: 2,290
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F6

MNPR transaction

Common Stock

Sale

Transaction value: $122,800
Shares: -1,098
Change %: -48%
Price: $111.84
Shares after: 1,192
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F7

MNPR transaction

Common Stock

Sale

Transaction value: $67,984
Shares: -602
Change %: -51%
Price: $112.93
Shares after: 590
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F8

MNPR transaction

Common Stock

Sale

Transaction value: $67,166
Shares: -590
Change %: -100%
Price: $113.84
Shares after: 0
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F9

MNPR holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 11,486
Date: 26 Aug 2026
Ownership: See footnote
Footnotes: F10

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MNPR transaction Derivative

Stock Option

Options Exercise

Transaction value
Shares: +2,055
Change %: +50%
Price: $0.000000^*
Shares after: 6,165
Date: 26 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,055
Exercise price: $30.00
Footnotes: F1, F2

MNPR transaction Derivative

Stock Option

Options Exercise

Transaction value
Shares: +2,035
Change %: +33%
Price: $0.000000^*
Shares after: 8,140
Date: 26 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,035
Exercise price: $14.00
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 footnotes

Footnote F1

This transaction was effected pursuant to a Rule 10b5-1 Plan executed by the reporting person on May 27, 2026.

Footnote F2

On August 28, 2018, the reporting person was granted stock options to purchase up to 8,220 shares of common stock. The options vest 6/51 on the six-month anniversary of vesting commencement date of October 1, 2018 and 1/51 per month thereafter.

Footnote F3

On February 2, 2022, the reporting person was granted stock options to purchase up to 16,279 shares of common stock. The options vest 6/48ths on June 30, 2022 and 1/48ths per month thereafter.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.07 to $109.05, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.07 to $110.04, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.14 to $111.05, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F7

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.30 to $112.27, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F8

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $112.30 to $113.25, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F9

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.35 to $114.34, inclusive. The reporting person undertakes to provide to Monopar Therapeutics Inc., any security holder of Monopar Therapeutics Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (9) to this Form 4.

Footnote F10

Represents shares held by the Kim R. Tsuchimoto Trust dated October 6, 2015.

SEC remarks

On August 27, 2026, the reporting person filed a Form 4, which inadvertently omitted two option exercises that were made prior to the reporting person's sale of shares of common stock. Both the option exercises and the sales of common stock were effected pursuant to a Rule 10b5-1 Plan.