Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| First Tracks Biotherapeutics, Inc.TRAX · Entity 4696 | 10% owner | April 20, 2026 | April 22, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
First Tracks Biotherapeutics, Inc.
Report date April 20, 2026 · Filed April 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Stock, par value $0.001 per shareSEC Table I · non-derivative | Direct | 0 |
Reported balance
After 2026-04-20 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-04-20 · Other · Disposed 100 · Balance 0 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. |
Filing footnotes · ownership attribution and instrument terms
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.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| April 20, 2026 Filed Apr 22, 2026 20:05 UTC | First Tracks Biotherapeutics, Inc. TRAX · Entity 4696 | OtherCommon Stock, par value $0.001 per share | 100 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001370053-26-000005 · form4-04222026_040403.xml · nonDerivative · entry 1 ANAPTYSBIO, INC · CIK 0001370053 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F1 · security: 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 · kind: 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 · shares: 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 · price: 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. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.