Monopar Therapeutics MNPR Insider Ownership

NASDAQ MNPR

$74.23 +2.76 (+3.86%)

At close: Oct 20, 2026 · 4:00 PM EDT

Insider Holdings by Owner

1.08Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

13.17%

▲+0.022% pp QoQ

Shares Held by Insiders

1.12Mn

filed for Sep 2026

▲+0.17% QoQ

Shares Outstanding

8.54Mn

8,542,450 shares

Direct Holdings

463.38K

Indirect: 661.33K

Net Shares Traded (QoQ)

+1.91K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past year, MNPR insiders bought $104,925 of stock (1.5K shares) and sold $4.44 million (50.46K shares) on the open market.

By number of insiders, Monopar Therapeutics saw one insider buy and 6 insiders sell on the open market over the past 12 months.
Among Monopar Therapeutics' insiders, Quan Anh Vu (Chief Financial Officer) was the largest open-market buyer over the past 12 months, purchasing $104,925 of stock (1.5K shares), most recently on December 26, 2025.
On the sell side, Chandler Robinson (Chief Executive Officer) led open-market sales of Monopar Therapeutics stock over the past 12 months with $2.56 million (29.06K shares), most recently on September 24, 2026.
The newest open-market trade among Monopar Therapeutics insiders came on October 1, 2026, when Christopher M. Starr (Director) made a sale of 8.4K shares for $659,387.
Away from the open market, MNPR insiders acquired 103.52K shares through option exercises and conversions and gave up 21.36K shares to cover taxes or exercise prices over the last 12 months.
Business Quant data puts insider holdings in MNPR at 1.12Mn shares across insiders' latest Form 4 filings, up 0.17% from 1.12Mn shares at the end of Q2 2026.
By type of ownership, MNPR insiders hold 41.20% of their shares directly (463.38K shares) and 58.80% indirectly (661.33K shares).
Business Quant counts 10 insiders with holdings in Monopar Therapeutics stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Monopar Therapeutics' three biggest insider holders are Diane Hendricks (10% owner, 661.33K shares), Tactic Pharma LLC (10% owner, 272.03K shares) and Chandler Robinson (Chief Executive Officer, 104.72K shares), based on their latest Form 4 filings.
The holding of Diane Hendricks makes up 58.80% of all shares held by Monopar Therapeutics insiders.
Institutional holders reported 72.84% of Monopar Therapeutics' outstanding shares for Q2 2026; insiders' latest Form 4 filings put their stake at about 13.17%, and other investors, including the public, hold the remaining 13.99%.
Over the past 12 months, 12 insiders reported transactions in Monopar Therapeutics stock in 32 Form 4 filings.
These insider figures for Monopar Therapeutics are based on Form 4 filings through October 5, 2026.

Form 4 Holdings

Insiders Holding MNPR

Insiders 12

Shares held 1.08Mn

Of outstanding 12.67%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Diane Hendricks	TenPercentOwner	0	567,580	567,580	52.4%	17 Dec, 2025
2	Pharma Llc Tactic	TenPercentOwner	272,026	0	272,026	25.1%	26 Sep, 2025
3	Chandler Robinson	Chief Executive Officer	104,724	0	104,724	9.7%	02 Oct, 2026
4	Andrew Cittadine	Chief Operating Officer	58,054	0	58,054	5.4%	02 Oct, 2026
5	Michael J Brown	Director	47,173	0	47,173	4.4%	03 Jan, 2024
6	Arthur J Klausner	Director	8,762	0	8,762	0.8%	19 Dec, 2025
7	Raymond Anderson	Director	5,373	0	5,373	0.5%	28 Aug, 2026
8	Christopher M Starr	Director	5,173	0	5,173	0.5%	05 Oct, 2026
9	Patrice Rioux	Other	5,065	0	5,065	0.5%	27 Aug, 2026
10	Andrew Paul Mazar	Chief Scientific Officer	4,425	0	4,425	0.4%	01 Apr, 2022
11	Quan Anh Vu	Chief Financial Officer	2,655	0	2,655	0.2%	02 Oct, 2026
12	Karthik Radhakrishnan	Chief Financial Officer	1,550	0	1,550	0.1%	30 Oct, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

513 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
01 Oct, 2026	Christopher M Starr	Director	Acquired M	8,400	$0.01	$42	13,573	Direct
01 Oct, 2026	Christopher M Starr	Director	Disposed S	4,631	$78.09	$361.63K	8,942	Direct
01 Oct, 2026	Christopher M Starr	Director	Disposed S	2,970	$78.82	$234.10K	5,972	Direct
01 Oct, 2026	Christopher M Starr	Director	Disposed S	799	$79.67	$63.66K	5,173	Direct
01 Oct, 2026	Christopher M Starr	Director	Disposed M	8,400	$0.00	$0	8,400	Direct
30 Sep, 2026	Andrew Cittadine	Chief Operating Officer	Acquired M	4,384	—	—	59,998	Direct
30 Sep, 2026	Quan Anh Vu	Chief Financial Officer	Acquired M	614	—	—	2,835	Direct
30 Sep, 2026	Chandler Robinson	Chief Executive Officer	Acquired M	9,801	—	—	109,068	Direct
30 Sep, 2026	Andrew Cittadine	Chief Operating Officer	Disposed F	1,944	$79.67	$154.88K	58,054	Direct
30 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed F	4,344	$79.67	$346.09K	104,724	Direct
30 Sep, 2026	Quan Anh Vu	Chief Financial Officer	Disposed F	180	$79.67	$14.34K	2,655	Direct
30 Sep, 2026	Andrew Cittadine	Chief Operating Officer	Disposed M	4,384	$0.00	$0	35,115	Direct
30 Sep, 2026	Quan Anh Vu	Chief Financial Officer	Disposed M	614	$0.00	$0	7,984	Direct
30 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed M	9,801	$0.00	$0	83,602	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Acquired M	14,056	$30.00	$421.68K	113,323	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Acquired M	15,000	$14.00	$210.00K	128,323	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed S	10,450	$87.15	$910.72K	117,873	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed S	9,638	$87.96	$847.76K	108,235	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed S	8,368	$88.97	$744.50K	99,867	Direct
24 Sep, 2026	Chandler Robinson	Chief Executive Officer	Disposed S	600	$89.79	$53.87K	99,267	Direct

Showing 1 to 20 of 513 transactions