InsiderTrades

Form 4 for TRAX First Tracks Biotherapeutics, Inc.

Accepted 2026-04-22 16:05:12 ET · period of report 2026-04-20 · accession 0001370053-26-000005 · 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
2026-04-22 16:05 2026-04-20 TRAX ANAPTYSBIO, INC 10% J - Other — -100 0 -100% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, par value $0.001 per share 2026-04-20 J D 100 — 0 D — — (F1) 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. (F2) 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. (F3) 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. (F2) 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.