CMPX

Compass Therapeutics, Inc.

Biological Products, (No Diagnostic Substances)NasdaqNon-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Total Trades

33

Buys

29

Sells

4

Largest Trade

$1M+

Insiders

6

Institutional Funds

122

Inst. Value

$1M+

Activist Filings

28

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K10K$2.11May 27, 2025
GORDON CARL LDirectorSELL$1M+3.6M$1.59Apr 11, 2025
ORBIMED ADVISORS LLCDirectorSELL$1M+3.6M$1.59Apr 11, 2025
Anderman JonathanGen Counsel & Corp…BUY$15K–$50K20K$1.54Apr 8, 2025
Lerner NeilCHIEF ACCOUNTING O…BUY$15K–$50K20K$1.42Apr 8, 2025
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K10K$3.37Mar 10, 2023
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$3.98Feb 27, 2023
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$3.86Feb 15, 2023
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$4.05Jan 31, 2023
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$4.19Jan 24, 2023
Bisker-Leib VeredCOOSELL$100K–$500K25K$4.23Nov 25, 2022
Bisker-Leib VeredCOOSELL$50K–$100K22K$4.36Nov 22, 2022
ORBIMED ADVISORS LLCDirectorBUY$1M+402K$3.21Nov 10, 2022
GORDON CARL LDirectorBUY$1M+402K$3.21Nov 10, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K10K$2.32Sep 28, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$2.27Sep 27, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$3.03Sep 8, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$2.83Sep 1, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$3.05Aug 17, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$2.64Aug 10, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K15K$2.58Aug 2, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$2.80Jun 21, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K20K$2.34Jun 17, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K30K$2.29Jun 13, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$3.03Jun 1, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K20K$3.04May 26, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K18K$2.72May 24, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$15K–$50K20K$2.47May 17, 2022
GORDON CARL LDirectorBUY$100K–$500K193K$2.18May 13, 2022
ORBIMED ADVISORS LLCDirectorBUY$100K–$500K193K$2.18May 13, 2022
ORBIMED ADVISORS LLCDirectorBUY$100K–$500K125K$1.57May 10, 2022
GORDON CARL LDirectorBUY$100K–$500K125K$1.57May 10, 2022
Schuetz Thomas J.CHIEF EXECUTIVE OF…BUY$50K–$100K28K$1.80May 10, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Blackstone Annex Master Fund L.P.

SC 13G/A · Feb 13, 2026

1.4%

2.4M shares

BlackRock, Inc.

SC 13G · Jan 21, 2026

5.2%

9.3M shares

5.1%

9.0M shares

TANG CAPITAL MANAGEMENT, LLC

SC 13G/A · Nov 14, 2025

10.0%

17.2M shares

TANG CAPITAL MANAGEMENT, LLC

SC 13G/A · Nov 14, 2025

10.0%

17.2M shares

BIOTECHNOLOGY VALUE FUND L P

SC 13G · Oct 29, 2025

2.7%

4.7M shares

Suvretta Capital Management, LLC

SC 13G/A · Aug 21, 2025

8.2%

14.1M shares

Commander Aggregator, LP

SC 13D/A · Aug 18, 2025

4.5%

7.8M shares

ORBIMED ADVISORS LLC

SC 13D/A · Aug 15, 2025

8.9%

15.2M shares

TANG CAPITAL MANAGEMENT, LLC

SC 13G/A · Aug 14, 2025

9.8%

13.5M shares

Suvretta Capital Management, LLC

SC 13G · Aug 14, 2025

5.2%

7.1M shares

MPM BioImpact LLC

SC 13G/A · Aug 12, 2025

4.1%

5.6M shares

BlackRock, Inc.

SC 13G/A · Jul 16, 2025

4.6%

6.4M shares

TANG CAPITAL MANAGEMENT, LLC

SC 13G/A · May 15, 2025

8.0%

11.1M shares

ORBIMED ADVISORS LLC

SC 13D/A · Apr 11, 2025

11.0%

15.2M shares

MPM BioImpact LLC

SC 13G · Feb 14, 2025

6.2%

8.6M shares

Adage Capital Management, L.P.

SC 13G/A · Feb 12, 2025

4.4%

6.0M shares

BlackRock, Inc.

SC 13G · Feb 4, 2025

5.0%

6.9M shares

TANG CAPITAL MANAGEMENT, LLC

SC 13G · Jan 16, 2025

5.4%

7.4M shares

1.3%

1.8M shares

2.6%

3.6M shares

OrbiMed Advisors LLC

SC 13D/A · Mar 22, 2024

13.7%

18.8M shares

6.0%

7.6M shares

Adage Capital Partners, L.P.

SC 13G · Nov 27, 2023

5.7%

7.2M shares

Rock Springs Capital Management LP

SC 13G/A · Feb 14, 2023

4.2%

5.3M shares

3.5%

4.4M shares

OrbiMed Advisors LLC

SC 13D/A · Nov 10, 2022

14.9%

18.8M shares

Rock Springs Capital Management LP

SC 13G/A · Feb 14, 2022

5.4%

5.3M shares

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