{"transactions":[{"id":951655,"issuer":{"id":5614,"kind":"organization","name":"Compass Therapeutics, Inc.","symbol":"CMPX"},"owners":[{"id":70328,"kind":"person","name":"Prasad Arjun","position":1,"cik":"0002102138","reported_name":"Prasad Arjun","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"STOCK OPTION (RIGHT TO BUY)","published_at":"2026-01-05T21:33:32.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1000000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The options were granted pursuant to the Compass Therapeutics, Inc. 2025 Inducement Plan as a material inducement to the Reporting Person's acceptance of employment with the Issuer in accordance with Nasdaq Rule 5635(c)(4)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options will vest over four years, as follows: 25% of the shares underlying the option will vest and become exercisable on January 2, 2027, with the remaining 75% vesting in 36 substantially equal monthly installments thereafter."}],"balance_after":1000000,"derivative":{"exercise_price":5.17,"expiration_date":"2036-01-02","underlying":"COMMON STOCK","underlying_shares":1000000},"source":{"system":"sec-edgar","filing":"0001171843-26-000059","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1738021/000117184326000059/ownership.xml","form_type":"4"}}]}