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United States Biotechnology & Medical Research

Compass Therapeutics, Inc. (CMPX)

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The most recent insider trading activity occurred on May 27, 2025, with a BUY transaction by the CEO. Prior to this, significant SELL transactions were noted in April 2025 by major shareholders and directors. Earlier in 2025, there were BUY transactions by the Chief Accounting Officer and General Counsel. The last reported earnings were on May 13, 2026.
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Ticker: CMPX Exchange: PNK
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Schuetz Thomas J.
CHIEF EXECUTIVE OFFICER
1 purchase — total 21,100 USD
Buy 27 May 2025
Value US$4,754,630.91 | Price 492.10 | Shares 81,301
Sale 9 Apr 2025
Value US$90,231.49 | Price 70.01 | Shares 91,856
Sale 9 Apr 2025
Value US$5,678,570.52 | Price 1.59 | Shares 3,571,428
Proposed sale 9 Apr 2025
Value US$5,678,571.00 | Price 1.59 | Shares 3,571,428
Proposed sale 9 Apr 2025
Value US$5,678,571.00 | Price 1.59 | Shares 3,571,428
Buy 7 Apr 2025
Value US$30,800.00 | Price 1.54 | Shares 20,000
Buy 7 Apr 2025
Value US$28,400.00 | Price 1.42 | Shares 20,000
Buy 10 Mar 2023
Value US$33,700.00 | Price 3.37 | Shares 10,000
Buy 27 Feb 2023
Value US$79,600.00 | Price 3.98 | Shares 20,000
Buy 15 Feb 2023
Value US$77,200.00 | Price 3.86 | Shares 20,000
Buy 31 Jan 2023
Value US$81,000.00 | Price 4.05 | Shares 20,000
Buy 24 Jan 2023
Value US$83,800.00 | Price 4.19 | Shares 20,000
Sale 25 Nov 2022
Value US$8.72 | Price 4.36 | Shares 2
Sale 23 Nov 2022
Value US$41,146.70 | Price 4.30 | Shares 9,569
Sale 22 Nov 2022
Value US$62,552.51 | Price 4.19 | Shares 14,929
Sale 21 Nov 2022
Value US$69,591.90 | Price 4.34 | Shares 16,035
Sale 18 Nov 2022
Value US$27,394.40 | Price 4.40 | Shares 6,226
Buy 8 Nov 2022
Value US$1,290,420.00 | Price 3.21 | Shares 402,000
Buy 8 Nov 2022
Value US$1,290,420.00 | Price 3.21 | Shares 402,000
Buy 28 Sep 2022
Value US$23,200.00 | Price 2.32 | Shares 10,000
Buy 26 Sep 2022
Value US$34,050.00 | Price 2.27 | Shares 15,000
Buy 7 Sep 2022
Value US$45,450.00 | Price 3.03 | Shares 15,000
Buy 1 Sep 2022
Value US$42,450.00 | Price 2.83 | Shares 15,000
Buy 17 Aug 2022
Value US$45,750.00 | Price 3.05 | Shares 15,000
Buy 10 Aug 2022
Value US$39,600.00 | Price 2.64 | Shares 15,000
Buy 1 Aug 2022
Value US$38,700.00 | Price 2.58 | Shares 15,000
Buy 21 Jun 2022
Value US$56,000.00 | Price 2.80 | Shares 20,000
Buy 16 Jun 2022
Value US$46,800.00 | Price 2.34 | Shares 20,000
Buy 13 Jun 2022
Value US$68,700.00 | Price 2.29 | Shares 30,000
Buy 6 Jun 2022
Value US$84,900.00 | Price 2.83 | Shares 30,000
Buy 1 Jun 2022
Value US$60,600.00 | Price 3.03 | Shares 20,000
Buy 26 May 2022
Value US$60,800.00 | Price 3.04 | Shares 20,000
Buy 23 May 2022
Value US$49,925.60 | Price 2.72 | Shares 18,355
Buy 17 May 2022
Value US$49,931.05 | Price 2.47 | Shares 20,215
Buy 13 May 2022
Value US$76,497.78 | Price 2.49 | Shares 30,722
Buy 13 May 2022
Value US$76,497.78 | Price 2.49 | Shares 30,722
Buy 12 May 2022
Value US$228,170.90 | Price 2.35 | Shares 97,094
Buy 12 May 2022
Value US$228,170.90 | Price 2.35 | Shares 97,094
Buy 11 May 2022
Value US$115,813.00 | Price 1.79 | Shares 64,700
Buy 11 May 2022
Value US$115,813.00 | Price 1.79 | Shares 64,700
Buy 10 May 2022
Value US$50,104.80 | Price 1.80 | Shares 27,836
Buy 10 May 2022
Value US$39,115.20 | Price 1.60 | Shares 24,447
Buy 10 May 2022
Value US$39,115.20 | Price 1.60 | Shares 24,447
Buy 9 May 2022
Value US$141,510.72 | Price 1.56 | Shares 90,712
Buy 9 May 2022
Value US$141,510.72 | Price 1.56 | Shares 90,712
Buy 6 May 2022
Value US$16,626.00 | Price 1.63 | Shares 10,200
Buy 6 May 2022
Value US$16,626.00 | Price 1.63 | Shares 10,200
Buy 4 Nov 2021
Value US$12,499,998.00 | Price 3.50 | Shares 3,571,428
Buy 4 Nov 2021
Value US$6,250,002.50 | Price 3.50 | Shares 1,785,715
Buy 4 Nov 2021
Value US$12,499,998.00 | Price 3.50 | Shares 3,571,428
Buy 4 Nov 2021
Value US$6,250,002.50 | Price 3.50 | Shares 1,785,715
Buy 19 Jun 2020
Value US$1,250,000.00 | Price 5.00 | Shares 250,000
Buy 19 Jun 2020
Value US$320,330.00 | Price 5.00 | Shares 64,066
Buy 19 Jun 2020
Value US$1,445,590.00 | Price 5.00 | Shares 289,118
Buy 19 Jun 2020
Value US$7,275,660.00 | Price 5.00 | Shares 1,455,132
Buy 19 Jun 2020
Value US$487,155.00 | Price 5.00 | Shares 97,431
Buy 19 Jun 2020
Value US$7,275,660.00 | Price 5.00 | Shares 1,455,132
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-05-27 2025-05-27 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
81,301 -4.6%
492.10
US$4,754,631 		81,301 -4.6% 492.10 US$4,754,631
2025-04-11 2025-04-09 S Sale
1.5
GORDON CARL L
Non-Executive Director Large shareholder
91,856 -10.3%
70.01
US$90,231 		91,856 -10.3% 70.01 US$90,231
2025-04-11 2025-04-09 S Sale
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
57,291 -0.4%
89.07
US$3,976,422 		57,291 -0.4% 89.07 US$3,976,422
2025-04-09 2025-04-09 PrS Proposed sale
2.6
OrbiMed Genesis Master Fund, L.P.

Director; Shareholder

Non-Executive Director
3,571,428
1.59
US$5,678,571 		3,571,428 1.59 US$5,678,571
2025-04-09 2025-04-09 PrS Proposed sale
The Biotech Growth Trust PLC

Director; Shareholder

Non-Executive Director
3,571,428
1.59
US$5,678,571 		3,571,428 1.59 US$5,678,571
2025-04-08 2025-04-07 B Purchase
3.3
Anderman Jonathan

Gen Counsel & Corporate Sec

Officer
20,000 +2000.0%
1.54
US$30,800 		20,000 +2000.0% 1.54 US$30,800
2025-04-08 2025-04-07 B Purchase
3.8
Lerner Neil

CHIEF ACCOUNTING OFFICER

Officer
20,000 +6.7%
1.42
US$28,400 		20,000 +6.7% 1.42 US$28,400
2023-03-10 2023-03-10 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
10,000 +0.2%
3.37
US$33,700 		10,000 +0.2% 3.37 US$33,700
2023-02-27 2023-02-27 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.3%
3.98
US$79,600 		20,000 +0.3% 3.98 US$79,600
2023-02-15 2023-02-15 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.3%
3.86
US$77,200 		20,000 +0.3% 3.86 US$77,200
2023-01-31 2023-01-31 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
4.05
US$81,000 		20,000 +0.4% 4.05 US$81,000
2023-01-24 2023-01-24 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
4.19
US$83,800 		20,000 +0.4% 4.19 US$83,800
2022-11-25 2022-11-25 S Sale
2.6
Bisker-Leib Vered

Chief Operating Officer

Officer
2 -0.0%
4.36
US$9 		2 -0.0% 4.36 US$9
2022-11-25 2022-11-23 S Sale
2.6
Bisker-Leib Vered

Chief Operating Officer

Officer
9,569 -0.9%
4.30
US$41,147 		9,569 -0.9% 4.30 US$41,147
2022-11-25 2022-11-22 S Sale
2.6
Bisker-Leib Vered

Chief Operating Officer

Officer
14,929 -1.4%
4.19
US$62,553 		14,929 -1.4% 4.19 US$62,553
2022-11-22 2022-11-21 S Sale
2.6
Bisker-Leib Vered

Chief Operating Officer

Officer
16,035 -1.5%
4.34
US$69,592 		16,035 -1.5% 4.34 US$69,592
2022-11-22 2022-11-18 S Sale
2.6
Bisker-Leib Vered

Chief Operating Officer

Officer
6,226 -0.6%
4.40
US$27,394 		6,226 -0.6% 4.40 US$27,394
2022-11-10 2022-11-08 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
402,000 +2.7%
3.21
US$1,290,420 		402,000 +2.7% 3.21 US$1,290,420
2022-11-10 2022-11-08 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
402,000 +2.7%
3.21
US$1,290,420 		402,000 +2.7% 3.21 US$1,290,420
2022-09-28 2022-09-28 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
10,000 +0.2%
2.32
US$23,200 		10,000 +0.2% 2.32 US$23,200
2022-09-27 2022-09-26 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
2.27
US$34,050 		15,000 +0.3% 2.27 US$34,050
2022-09-08 2022-09-07 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
3.03
US$45,450 		15,000 +0.3% 3.03 US$45,450
2022-09-01 2022-09-01 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
2.83
US$42,450 		15,000 +0.3% 2.83 US$42,450
2022-08-17 2022-08-17 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
3.05
US$45,750 		15,000 +0.3% 3.05 US$45,750
2022-08-10 2022-08-10 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
2.64
US$39,600 		15,000 +0.3% 2.64 US$39,600
2022-08-02 2022-08-01 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
15,000 +0.3%
2.58
US$38,700 		15,000 +0.3% 2.58 US$38,700
2022-06-21 2022-06-21 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
2.80
US$56,000 		20,000 +0.4% 2.80 US$56,000
2022-06-17 2022-06-16 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
2.34
US$46,800 		20,000 +0.4% 2.34 US$46,800
2022-06-13 2022-06-13 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
30,000 +0.6%
2.29
US$68,700 		30,000 +0.6% 2.29 US$68,700
2022-06-07 2022-06-06 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
30,000 +0.6%
2.83
US$84,900 		30,000 +0.6% 2.83 US$84,900
2022-06-01 2022-06-01 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
3.03
US$60,600 		20,000 +0.4% 3.03 US$60,600
2022-05-26 2022-05-26 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,000 +0.4%
3.04
US$60,800 		20,000 +0.4% 3.04 US$60,800
2022-05-24 2022-05-23 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
18,355 +0.4%
2.72
US$49,926 		18,355 +0.4% 2.72 US$49,926
2022-05-17 2022-05-17 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
20,215 +0.4%
2.47
US$49,931 		20,215 +0.4% 2.47 US$49,931
2022-05-13 2022-05-13 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
30,722 +0.2%
2.49
US$76,498 		30,722 +0.2% 2.49 US$76,498
2022-05-13 2022-05-13 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
30,722 +0.2%
2.49
US$76,498 		30,722 +0.2% 2.49 US$76,498
2022-05-13 2022-05-12 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
97,094 +0.7%
2.35
US$228,171 		97,094 +0.7% 2.35 US$228,171
2022-05-13 2022-05-12 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
97,094 +0.7%
2.35
US$228,171 		97,094 +0.7% 2.35 US$228,171
2022-05-13 2022-05-11 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
64,700 +0.4%
1.79
US$115,813 		64,700 +0.4% 1.79 US$115,813
2022-05-13 2022-05-11 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
64,700 +0.4%
1.79
US$115,813 		64,700 +0.4% 1.79 US$115,813
2022-05-10 2022-05-10 B Purchase
3.6
Schuetz Thomas J.

CHIEF EXECUTIVE OFFICER

Executive Director
27,836 +0.5%
1.80
US$50,105 		27,836 +0.5% 1.80 US$50,105
2022-05-10 2022-05-10 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
24,447 +0.2%
1.60
US$39,115 		24,447 +0.2% 1.60 US$39,115
2022-05-10 2022-05-10 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
24,447 +0.2%
1.60
US$39,115 		24,447 +0.2% 1.60 US$39,115
2022-05-10 2022-05-09 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
90,712 +0.6%
1.56
US$141,511 		90,712 +0.6% 1.56 US$141,511
2022-05-10 2022-05-09 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
90,712 +0.6%
1.56
US$141,511 		90,712 +0.6% 1.56 US$141,511
2022-05-10 2022-05-06 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
10,200 +0.1%
1.63
US$16,626 		10,200 +0.1% 1.63 US$16,626
2022-05-10 2022-05-06 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
10,200 +0.1%
1.63
US$16,626 		10,200 +0.1% 1.63 US$16,626
2021-11-08 2021-11-04 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
3,571,428 +inf%
3.50
US$12,499,998 		3,571,428 +inf% 3.50 US$12,499,998
2021-11-08 2021-11-04 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
1,785,715 +14.0%
3.50
US$6,250,002 		1,785,715 +14.0% 3.50 US$6,250,002
2021-11-08 2021-11-04 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
3,571,428 +inf%
3.50
US$12,499,998 		3,571,428 +inf% 3.50 US$12,499,998
2021-11-08 2021-11-04 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
1,785,715 +14.0%
3.50
US$6,250,002 		1,785,715 +14.0% 3.50 US$6,250,002
2020-06-23 2020-06-19 B Purchase
Ferneau Philip
Non-Executive Director
250,000 +166.4%
5.00
US$1,250,000 		250,000 +166.4% 5.00 US$1,250,000
2020-06-23 2020-06-19 B Purchase
Sunderland Julie
Non-Executive Director
289,118 +13.1%
5.00
US$1,445,590 		289,118 +13.1% 5.00 US$1,445,590
2020-06-23 2020-06-19 B Purchase
Ferneau Philip
Non-Executive Director
64,066 +2.8%
5.00
US$320,330 		64,066 +2.8% 5.00 US$320,330
2020-06-23 2020-06-19 B Purchase
1.5
GORDON CARL L
Non-Executive Director Large shareholder
1,455,132 +12.9%
5.00
US$7,275,660 		1,455,132 +12.9% 5.00 US$7,275,660
2020-06-23 2020-06-19 B Purchase
3.6
Schuetz Thomas J.

Chief Executive Officer

Executive Director
97,431 +2.2%
5.00
US$487,155 		97,431 +2.2% 5.00 US$487,155
2020-06-23 2020-06-19 B Purchase
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
1,455,132 +12.9%
5.00
US$7,275,660 		1,455,132 +12.9% 5.00 US$7,275,660
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