United States Biotechnology & Medical Research

Monopar Therapeutics Inc. (MNPR)

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Monopar Therapeutics experienced significant insider trading activity over the past ninety days, totaling nearly ten million dollars in sales. Executives and directors, including CEO Robinson Chandler, executed multiple planned divestments. These transactions occurred following the August results financiers, amidst a nineteen percent decline in stock valuation.
Ticker: MNPR Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Monopar Therapeutics Inc.. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
1.4
CHRISTOPHER STARR Director Non-Executive Director
Transaction date
Proposed sale
Price
438.60
Quantity 26,670
Value US$2,074,351
1.4
Robinson Chandler Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
447.12
Quantity 49,186 -11.4%
Value US$4,328,470
1.4
Robinson Chandler Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
147.03
Quantity 96,950 +29.2%
Value US$3,552,223
1.4
Robinson Chandler Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
87.96
Quantity 1,000 -8.2%
Value US$100,000
1.4
Robinson Chandler Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
87.15
Quantity 1,000 -8.1%
Value US$100,000
1.4
CHANDLER ROBINSON Director; Officer Executive Director
Transaction date
Proposed sale
Price
89.38
Quantity 1,000
Value US$100,000
RIOUX PATRICE Acting Chief Medical Officer
Transaction date
Planned sale
Price
111.26
Quantity 1 -0.0%
Value US$111
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
113.84
Quantity 590 -7.4%
Value US$67,166
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
112.93
Quantity 602 -7.0%
Value US$67,984
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
111.84
Quantity 1,098 -11.3%
Value US$122,800
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
110.65
Quantity 700 -6.7%
Value US$77,455
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
109.56
Quantity 615 -5.6%
Value US$67,379
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Planned sale
Price
108.83
Quantity 485 -4.2%
Value US$52,783
1.4
KIM TSUCHIMOTO Director Non-Executive Director
Transaction date
Proposed sale
Price
110.82
Quantity 8,180
Value US$906,508
PATRICE RIOUX Acting Chief Medical Officer Officer
Transaction date
Proposed sale
Price
110.82
Quantity 1
Value US$111
3.3
Anderson Raymond Non-Executive Director
Transaction date
Planned sale
Price
113.05
Quantity 1,802 -7.1%
Value US$203,716
3.3
Anderson Raymond Non-Executive Director
Transaction date
Planned sale
Price
110.07
Quantity 646 -2.5%
Value US$71,105
3.3
Anderson Raymond Non-Executive Director
Transaction date
Planned sale
Price
110.04
Quantity 694 -2.6%
Value US$76,368
3.3
RAYMOND WILLIAM ANDERSON Director Non-Executive Director
Transaction date
Proposed sale
Price
111.36
Quantity 6,284
Value US$699,786
2.3
Arthur Klausner Former Board Member
Transaction date
Proposed sale
Price
95.39
Quantity 5,000
Value US$476,967
2.3
Arthur Klausner Employer
Transaction date
Proposed sale
Price
97.05
Quantity 5,000
Value US$485,250
1.6
Vu Quan Anh Chief Financial Officer Officer
Transaction date
Purchase
Price
69.95
Quantity 1,500 +inf%
Value US$104,925
2.3
Arthur Klausner Board Member
Transaction date
Proposed sale
Price
67.16
Quantity 5,121
Value US$343,903
2.3
KLAUSNER ARTHUR J Non-Executive Director
Transaction date
Sale
Price
68.09
Quantity 461 -5.0%
Value US$31,389
2.3
KLAUSNER ARTHUR J Non-Executive Director
Transaction date
Sale
Price
67.06
Quantity 4,660 -33.6%
Value US$312,500
1.3
Tactic Pharma LLC Chief Executive Officer Executive Director Large shareholder
Transaction date
Sale
Price
63.61
Quantity 550,229 -66.9%
Value US$34,999,957
1.4
STARR CHRISTOPHER M Non-Executive Director
Transaction date
Sale
Price
40.00
Quantity 16,800 -76.5%
Value US$672,020
1.4
Robinson Chandler Chief Executive Officer Executive Director
Transaction date
Sale
Price
40.00
Quantity 16,800 -18.6%
Value US$672,020
1.4
Tsuchimoto Kim R Non-Executive Director
Transaction date
Sale
Price
40.00
Quantity 8,904 -43.7%
Value US$356,171
1.4
STARR CHRISTOPHER M Director Non-Executive Director
Transaction date
Proposed sale
Price
40.00
Quantity 16,800
Value US$672,000
1.4
Tsuchimoto Kim R Director Non-Executive Director
Transaction date
Proposed sale
Price
40.00
Quantity 8,904
Value US$356,160
1.4
Robinson Chandler Officer; Director Executive Director
Transaction date
Proposed sale
Price
40.00
Quantity 16,800
Value US$672,000
1.3
Tactic Pharma LLC Chief Executive Officer Executive Director Large shareholder
Transaction date
Sale
Price
35.00
Quantity 33,334 -3.9%
Value US$1,166,690
1.3
Tactic Pharma LLC 10% Stockholder Large shareholder
Transaction date
Proposed sale
Price
35.00
Quantity 33,334
Value US$1,166,806
2.4
Radhakrishnan Karthik Chief Financial Officer Officer
Transaction date
Purchase
Price
16.25
Quantity 1,550 +inf%
Value US$25,188
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.74
Quantity 20,508 +12.4%
Value US$15,254
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.86
Quantity 12,000 +7.8%
Value US$10,320
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.90
Quantity 12,000 +8.5%
Value US$10,799
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.93
Quantity 12,000 +9.3%
Value US$11,176
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.91
Quantity 12,000 +10.2%
Value US$10,920
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.78
Quantity 12,000 +11.4%
Value US$9,360
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.76
Quantity 12,000 +12.8%
Value US$9,120
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.64
Quantity 12,000 +14.7%
Value US$7,732
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.64
Quantity 12,000 +17.2%
Value US$7,676
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
0.64
Quantity 12,000 +20.8%
Value US$7,643
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
3.15
Quantity 10,000 +70.2%
Value US$31,500
2.4
Cittadine Andrew Chief Operating Officer Officer
Transaction date
Purchase
Price
3.00
Quantity 6,053 +74.0%
Value US$18,159
1.3
Tactic Pharma LLC Chief Scientific Officer Large shareholder
Transaction date
Planned sale
Price
16.90
Quantity 11,929 -6.7%
Value US$201,600
1.3
Tactic Pharma LLC Chief Scientific Officer Large shareholder
Transaction date
Planned sale
Price
16.44
Quantity 16,384 -8.4%
Value US$269,353
1.3
Tactic Pharma LLC Chief Scientific Officer Large shareholder
Transaction date
Planned sale
Price
15.12
Quantity 29,996 -13.3%
Value US$453,540
1.3
Tactic Pharma LLC Chief Scientific Officer Large shareholder
Transaction date
Planned sale
Price
14.09
Quantity 24,224 -9.7%
Value US$341,316
1.3
Tactic Pharma LLC Chief Scientific Officer Large shareholder
Transaction date
Planned sale
Price
13.30
Quantity 42,467 -14.6%
Value US$564,811
Tsuchimoto Kim R Chief Financial Officer
Transaction date
Purchase
Price
8.00
Quantity 325 +inf%
Value US$2,600
Tactic Pharma LLC Chief Scientific Officer
Transaction date
Purchase
Price
8.00
Quantity 125,000 +75.0%
Value US$1,000,000
Hendricks Diane
Transaction date
Purchase
Price
8.00
Quantity 468,750 +inf%
Value US$3,750,000
Leo Karl
Transaction date
Purchase
Price
8.00
Quantity 314 +inf%
Value US$2,510
Leo Karl
Transaction date
Purchase
Price
8.00
Quantity 156,250 +inf%
Value US$1,250,000
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-10-01 2026-10-01 PrS Proposed sale
1.4
CHRISTOPHER STARR

Director

Non-Executive Director
26,670
438.60
US$2,074,351 		26,670 438.60 US$2,074,351
2026-09-28 2026-09-24 PlS Planned sale
1.4
Robinson Chandler

Chief Executive Officer

Executive Director
49,186 -11.4%
447.12
US$4,328,470 		49,186 -11.4% 447.12 US$4,328,470
2026-09-28 2026-09-24 PlS Planned sale
1.4
Robinson Chandler

Chief Executive Officer

Executive Director
96,950 +29.2%
147.03
US$3,552,223 		96,950 +29.2% 147.03 US$3,552,223
2026-09-28 2026-09-24 PlS Planned sale
1.4
Robinson Chandler

Chief Executive Officer

Executive Director
1,000 -8.2%
87.96
US$100,000 		1,000 -8.2% 87.96 US$100,000
2026-09-28 2026-09-24 PlS Planned sale
1.4
Robinson Chandler

Chief Executive Officer

Executive Director
1,000 -8.1%
87.15
US$100,000 		1,000 -8.1% 87.15 US$100,000
2026-09-24 2026-09-24 PrS Proposed sale
1.4
CHANDLER ROBINSON

Director; Officer

Executive Director
1,000
89.38
US$100,000 		1,000 89.38 US$100,000
2026-08-27 2026-08-26 PlS Planned sale
RIOUX PATRICE

Acting Chief Medical Officer
1 -0.0%
111.26
US$111 		1 -0.0% 111.26 US$111
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
590 -7.4%
113.84
US$67,166 		590 -7.4% 113.84 US$67,166
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
602 -7.0%
112.93
US$67,984 		602 -7.0% 112.93 US$67,984
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
1,098 -11.3%
111.84
US$122,800 		1,098 -11.3% 111.84 US$122,800
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
700 -6.7%
110.65
US$77,455 		700 -6.7% 110.65 US$77,455
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
615 -5.6%
109.56
US$67,379 		615 -5.6% 109.56 US$67,379
2026-08-27 2026-08-26 PlS Planned sale
1.4
Tsuchimoto Kim R
Non-Executive Director
485 -4.2%
108.83
US$52,783 		485 -4.2% 108.83 US$52,783
2026-08-26 2026-08-26 PrS Proposed sale
1.4
KIM TSUCHIMOTO

Director

Non-Executive Director
8,180
110.82
US$906,508 		8,180 110.82 US$906,508
2026-08-26 2026-08-26 PrS Proposed sale
PATRICE RIOUX

Acting Chief Medical Officer

Officer
1
110.82
US$111 		1 110.82 US$111
2026-08-27 2026-08-25 PlS Planned sale
3.3
Anderson Raymond
Non-Executive Director
1,802 -7.1%
113.05
US$203,716 		1,802 -7.1% 113.05 US$203,716
2026-08-27 2026-08-25 PlS Planned sale
3.3
Anderson Raymond
Non-Executive Director
646 -2.5%
110.07
US$71,105 		646 -2.5% 110.07 US$71,105
2026-08-27 2026-08-25 PlS Planned sale
3.3
Anderson Raymond
Non-Executive Director
694 -2.6%
110.04
US$76,368 		694 -2.6% 110.04 US$76,368
2026-08-25 2026-08-25 PrS Proposed sale
3.3
RAYMOND WILLIAM ANDERSON

Director

Non-Executive Director
6,284
111.36
US$699,786 		6,284 111.36 US$699,786
2026-07-10 2026-07-08 PrS Proposed sale
2.3
Arthur Klausner

Former Board Member
5,000
95.39
US$476,967 		5,000 95.39 US$476,967
2026-07-07 2026-07-07 PrS Proposed sale
2.3
Arthur Klausner

Employer
5,000
97.05
US$485,250 		5,000 97.05 US$485,250
2025-12-29 2025-12-26 B Purchase
1.6
Vu Quan Anh

Chief Financial Officer

Officer
1,500 +inf%
69.95
US$104,925 		1,500 +inf% 69.95 US$104,925
2025-12-19 2025-12-18 PrS Proposed sale
2.3
Arthur Klausner

Board Member
5,121
67.16
US$343,903 		5,121 67.16 US$343,903
2025-12-19 2025-12-18 S Sale
2.3
KLAUSNER ARTHUR J
Non-Executive Director
461 -5.0%
68.09
US$31,389 		461 -5.0% 68.09 US$31,389
2025-12-19 2025-12-18 S Sale
2.3
KLAUSNER ARTHUR J
Non-Executive Director
4,660 -33.6%
67.06
US$312,500 		4,660 -33.6% 67.06 US$312,500
2025-09-26 2025-09-24 S Sale
1.3
Tactic Pharma LLC

Chief Executive Officer

Executive Director Large shareholder
550,229 -66.9%
63.61
US$34,999,957 		550,229 -66.9% 63.61 US$34,999,957
2025-07-16 2025-07-14 S Sale
1.4
STARR CHRISTOPHER M
Non-Executive Director
16,800 -76.5%
40.00
US$672,020 		16,800 -76.5% 40.00 US$672,020
2025-07-16 2025-07-14 S Sale
1.4
Robinson Chandler

Chief Executive Officer

Executive Director
16,800 -18.6%
40.00
US$672,020 		16,800 -18.6% 40.00 US$672,020
2025-07-16 2025-07-14 S Sale
1.4
Tsuchimoto Kim R
Non-Executive Director
8,904 -43.7%
40.00
US$356,171 		8,904 -43.7% 40.00 US$356,171
2025-07-14 2025-07-14 PrS Proposed sale
1.4
STARR CHRISTOPHER M

Director

Non-Executive Director
16,800
40.00
US$672,000 		16,800 40.00 US$672,000
2025-07-14 2025-07-14 PrS Proposed sale
1.4
Tsuchimoto Kim R

Director

Non-Executive Director
8,904
40.00
US$356,160 		8,904 40.00 US$356,160
2025-07-14 2025-07-14 PrS Proposed sale
1.4
Robinson Chandler

Officer; Director

Executive Director
16,800
40.00
US$672,000 		16,800 40.00 US$672,000
2025-04-04 2025-04-02 S Sale
1.3
Tactic Pharma LLC

Chief Executive Officer

Executive Director Large shareholder
33,334 -3.9%
35.00
US$1,166,690 		33,334 -3.9% 35.00 US$1,166,690
2025-04-02 2025-04-02 PrS Proposed sale
1.3
Tactic Pharma LLC

10% Stockholder

Large shareholder
33,334
35.00
US$1,166,806 		33,334 35.00 US$1,166,806
2024-10-30 2024-10-28 B Purchase
2.4
Radhakrishnan Karthik

Chief Financial Officer

Officer
1,550 +inf%
16.25
US$25,188 		1,550 +inf% 16.25 US$25,188
2024-06-21 2024-06-20 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
20,508 +12.4%
0.74
US$15,254 		20,508 +12.4% 0.74 US$15,254
2024-06-21 2024-06-18 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +7.8%
0.86
US$10,320 		12,000 +7.8% 0.86 US$10,320
2024-06-17 2024-06-17 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +8.5%
0.90
US$10,799 		12,000 +8.5% 0.90 US$10,799
2024-06-17 2024-06-14 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +9.3%
0.93
US$11,176 		12,000 +9.3% 0.93 US$11,176
2024-06-17 2024-06-13 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +10.2%
0.91
US$10,920 		12,000 +10.2% 0.91 US$10,920
2024-06-05 2024-06-04 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +11.4%
0.78
US$9,360 		12,000 +11.4% 0.78 US$9,360
2024-06-05 2024-06-03 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +12.8%
0.76
US$9,120 		12,000 +12.8% 0.76 US$9,120
2024-05-31 2024-05-31 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +14.7%
0.64
US$7,732 		12,000 +14.7% 0.64 US$7,732
2024-05-31 2024-05-30 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +17.2%
0.64
US$7,676 		12,000 +17.2% 0.64 US$7,676
2024-05-31 2024-05-29 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
12,000 +20.8%
0.64
US$7,643 		12,000 +20.8% 0.64 US$7,643
2022-11-16 2022-11-15 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
10,000 +70.2%
3.15
US$31,500 		10,000 +70.2% 3.15 US$31,500
2022-11-16 2022-11-14 B Purchase
2.4
Cittadine Andrew

Chief Operating Officer

Officer
6,053 +74.0%
3.00
US$18,159 		6,053 +74.0% 3.00 US$18,159
2021-02-16 2021-02-11 PlS Planned sale
1.3
Tactic Pharma LLC

Chief Scientific Officer

Large shareholder
11,929 -6.7%
16.90
US$201,600 		11,929 -6.7% 16.90 US$201,600
2021-02-16 2021-02-11 PlS Planned sale
1.3
Tactic Pharma LLC

Chief Scientific Officer

Large shareholder
16,384 -8.4%
16.44
US$269,353 		16,384 -8.4% 16.44 US$269,353
2021-02-16 2021-02-11 PlS Planned sale
1.3
Tactic Pharma LLC

Chief Scientific Officer

Large shareholder
29,996 -13.3%
15.12
US$453,540 		29,996 -13.3% 15.12 US$453,540
2021-02-16 2021-02-11 PlS Planned sale
1.3
Tactic Pharma LLC

Chief Scientific Officer

Large shareholder
24,224 -9.7%
14.09
US$341,316 		24,224 -9.7% 14.09 US$341,316
2021-02-16 2021-02-11 PlS Planned sale
1.3
Tactic Pharma LLC

Chief Scientific Officer

Large shareholder
42,467 -14.6%
13.30
US$564,811 		42,467 -14.6% 13.30 US$564,811
2019-12-20 2019-12-18 B Purchase Tsuchimoto Kim R

Chief Financial Officer
325 +inf%
8.00
US$2,600 		325 +inf% 8.00 US$2,600
2019-12-20 2019-12-18 B Purchase Tactic Pharma LLC

Chief Scientific Officer
125,000 +75.0%
8.00
US$1,000,000 		125,000 +75.0% 8.00 US$1,000,000
2019-12-20 2019-12-18 B Purchase Hendricks Diane
468,750 +inf%
8.00
US$3,750,000 		468,750 +inf% 8.00 US$3,750,000
2019-12-20 2019-12-18 B Purchase Leo Karl
314 +inf%
8.00
US$2,510 		314 +inf% 8.00 US$2,510
2019-12-20 2019-12-18 B Purchase Leo Karl
156,250 +inf%
8.00
US$1,250,000 		156,250 +inf% 8.00 US$1,250,000
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