Blackwell Kimberly — SEC Form 4 filings
SEC reporting owner CIK 1816465. 7 Form 4 filings on record with FilingPulse; latest filed 2026-06-12.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-02-05 to 2026-06-12. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 9.
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 |
|---|---|---|---|---|---|
| Century Therapeutics, Inc. (IPSC) | Director | 3 | — | — | 3 |
| Monte Rosa Therapeutics, Inc. (GLUE) | Director | 3 | — | — | 3 |
| Zentalis Pharmaceuticals, Inc. (ZNTL) | Chief Executive Officer, Director | 1 | — | — | 3 |
Form 4 filings — Blackwell Kimberly
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-12 | 4 | Monte Rosa Therapeutics, Inc. (GLUE) | Grant/award (A): 25,800 (derivative) @ $0 | EDGAR |
| 2026-06-12 | 4 | Century Therapeutics, Inc. (IPSC) | Grant/award (A): 74,000 (derivative) @ $0 | EDGAR |
| 2025-06-16 | 4 | Century Therapeutics, Inc. (IPSC) | Grant/award (A): 44,000 (derivative) @ $0 | EDGAR |
| 2025-06-16 | 4 | Monte Rosa Therapeutics, Inc. (GLUE) | Grant/award (A): 30,700 (derivative) @ $0 | EDGAR |
| 2024-06-21 | 4 | Century Therapeutics, Inc. (IPSC) | Grant/award (A): 44,000 (derivative) @ $0 | EDGAR |
| 2024-06-13 | 4 | Monte Rosa Therapeutics, Inc. (GLUE) | Grant/award (A): 22,100 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Zentalis Pharmaceuticals, Inc. (ZNTL) | Grant/award (A): 250,000 @ $0 · Tax withholding (F): 20,655 @ $11.69 · Grant/award (A): 250,000 (derivative) @ $0 | 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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