{"transactions":[{"id":802555,"issuer":{"id":4696,"kind":"organization","name":"First Tracks Biotherapeutics, Inc.","symbol":"TRAX"},"owners":[{"id":4640,"kind":"organization","name":"ANAPTYSBIO, INC","symbol":"ANAB","position":1,"cik":"0001370053","reported_name":"ANAPTYSBIO, INC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.001 per share","published_at":"2026-04-22T20:05:12.000Z","date":"2026-04-20","kind":"other","planned":false,"acquired":false,"shares":100,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"On April 1, 2026, AnaptysBio, Inc., a Delaware corporation (\"AnaptysBio\"), reported that it owned 100 shares of common stock, par value $0.001 per share, of First Tracks Biotherapeutics, Inc. (\"First Tracks\"), which at the time constituted all of the issued and outstanding shares of common stock of First Tracks."},{"field":"kind","element":"transactionCoding","label":"F2","text":"The record date for the distribution by AnaptysBio of all shares of common stock of First Tracks to the holders of AnaptysBio common stock was April 20, 2026 (the \"Spin-Off\"). The Spin-Off occurred before the market opened on April 20, 2026."},{"field":"shares","element":"transactionShares","label":"F3","text":"Represents the outstanding shares of common stock of First Tracks as of April 20, 2026, which were distributed in the Spin-Off as defined in footnote 2 on April 20, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The record date for the distribution by AnaptysBio of all shares of common stock of First Tracks to the holders of AnaptysBio common stock was April 20, 2026 (the \"Spin-Off\"). The Spin-Off occurred before the market opened on April 20, 2026."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001370053-26-000005","document":"form4-04222026_040403.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1370053/000137005326000005/form4-04222026_040403.xml","form_type":"4"}}]}