Form 4 Tracker
Compass Therapeutics, Inc.
CMPX

7 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Oct 1, 2026Oct 2 12:00 PMNeil LernerChief Accounting Officer
Purchase
20,000$0.92$18.4K420,000(D)

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Sep 24, 2026Sep 25 12:01 PMNeil LernerChief Accounting Officer
Purchase
2,500$1.14$2.8K400,000(D)

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Apr 29, 2026Apr 30 8:00 PMNeil LernerChief Accounting Officer
Purchase
15,000$1.89$28.4K397,500(D)

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Apr 29, 2026Apr 30 8:00 PMJonathan AndermanGeneral Counsel
Purchase
25,000$1.89$47.3K196,000(D)

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Apr 9, 2025Apr 9 10:58 PMOrbiMed Genesis Master Fund, L.P.
Proposed Sale
3,571,428$1.59$5.7M—

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Apr 9, 2025Apr 9 10:51 PMThe Biotech Growth Trust PLC
Proposed Sale
3,571,428$1.59$5.7M—

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Stock Options & Derivatives

No transactions found.