InsiderTrades

Form 4 for CMPX Compass Therapeutics, Inc.

Accepted 2026-01-05 00:00:00 ET · period of report 2026-01-02 · accession 0001171843-26-000051 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-01-05 2026-01-02 CMPX Anderman Jonathan GC A - Grant $5.17 +150.0K 171.0K +714% +$775.5K
D 2026-01-05 2026-01-02 CMPX Anderman Jonathan GC A - Grant $0.00 +720.0K 720.0K New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-01-02 A A 150,000 $5.17 171,000 D — — (F1) Represents restricted stock units ("RSU") granted on January 2, 2026. Each RSU represents a contingent right to receive one share of common stock. The award is subject to service-based vesting conditions and vests in four equal annual installments, with the first vesting on January 2, 2027. (F2) 150,000 of the shares represents unvested restricted stock units ("RSU") granted on January 2, 2026. Each RSU represents a contingent right to receive one share of common stock. The award is subject to service-based vesting conditions and vests in four equal annual installments, with the first installment vested on January 2, 2027.
2 Derivative Stock Option (Right to Buy) 2026-01-02 A A 720,000 $0.00 720,000 D $5.17 · — to 2036-01-02 720,000 Common Stock (F3) The options vest over 48 substantially equal monthly installments starting February 2, 2026.