Jonathan Anderman - 02 Jan 2026 Form 4 Insider Report for Compass Therapeutics, Inc. (CMPX)

Role
General Counsel
Signature
/s/ Neil Lerner, attorney-in-fact
Issuer symbol
CMPX
Transactions as of
02 Jan 2026
Net transactions value
+$775,500
Form type
4
Filing time
05 Jan 2026, 16:32:06 UTC
Previous filing
08 Apr 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Anderman Jonathan General Counsel C/O COMPASS THERAPEUTICS, INC., 80 GUEST STREET, SUITE 601, BOSTON /s/ Neil Lerner, attorney-in-fact 05 Jan 2026 0002032625

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CMPX Common Stock Award $775,500 +150,000 +714% $5.17 171,000 02 Jan 2026 Direct F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CMPX Stock Option (Right to Buy) Award $0 +720,000 $0.000000 720,000 02 Jan 2026 Common Stock 720,000 $5.17 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.
F3 The options vest over 48 substantially equal monthly installments starting February 2, 2026.