Bain Capital Life Sciences Fund IV, L.P. — SEC Form 4 filings
SEC reporting owner CIK 1996979. 2 Form 4 filings on record with FilingPulse; latest filed 2026-04-20.
Transaction summary — filings shown
Covers all 2 filings on record, filed 2025-01-13 to 2026-04-20. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 2 filings — 1,862,500 shares, $26,727,370 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: purchase of 1,562,500 shares @ $16.00 ($25,000,000) in Kailera Therapeutics, Inc., filed 2026-04-20.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Kailera Therapeutics, Inc. (KLRA) | 10% owner | 1 | 1 leg · 1,562,500 sh · $25,000,000 | — | 4 |
| Olema Pharmaceuticals, Inc. (OLMA) | 10% owner | 1 | 1 leg · 300,000 sh · $1,727,370 | — | 2 |
Form 4 filings — Bain Capital Life Sciences Fund IV, L.P.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-04-20 | 4 | Kailera Therapeutics, Inc. (KLRA) jointly with Bain Capital Life Sciences Investors, LLC, Bain Capital Life Sciences IV General Partner, LLC, BCLS Fund IV Investments GP, LLC, BCLS Fund IV Investments, L.P. | Conversion (C): 16,875,000 · Conversion (C): 4,145,768 · Purchase (P): 1,562,500 @ $16 · Conversion (C): 16,875,000 (derivative) @ $0 · Conversion (C): 4,145,768 (derivative) @ $0 | EDGAR |
| 2025-01-13 | 4 | Olema Pharmaceuticals, Inc. (OLMA) jointly with Bain Capital Life Sciences Investors, LLC, Bain Capital Life Sciences IV General Partner, LLC, Bain Capital Life Sciences Opportunities IV GP, LLC, Bain Capital Life Sciences Opportunities IV, L.P. | Purchase (P): 300,000 @ $5.76 · Other (J): 3,500,000 · Other (J): 3,500,000 (derivative) | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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