Anderson Karen M. — SEC Form 4 filings
SEC reporting owner CIK 1762176. 11 Form 4 filings on record with FilingPulse; latest filed 2026-06-24.
Transaction summary — filings shown
Covers all 11 filings on record, filed 2024-02-02 to 2026-06-24. 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): 14 legs across 8 filings — 461,031 shares, $11,237,945 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 38.
- Largest priced transaction: sale of 107,961 shares @ $26.15 ($2,823,234) in Centessa Pharmaceuticals plc, filed 2026-03-16.
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 |
|---|---|---|---|---|---|
| Centessa Pharmaceuticals plc (CNTA) | Chief People Officer | 11 | — | 14 legs · 461,031 sh · $11,237,945 | 38 |
Form 4 filings — Anderson Karen M.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-24 | 4 | Centessa Pharmaceuticals plc (CNTA) | Disposition to issuer (D): 62,085 · Disposition to issuer (D): 75,000 (derivative) · Disposition to issuer (D): 28,336 (derivative) · Disposition to issuer (D): 83,924 (derivative) · Disposition to issuer (D): 120,000 (derivative) · Disposition to issuer (D): 117,000 (derivative) | EDGAR |
| 2026-03-27 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 41,076 @ $8.01 · Sale (S): 41,076 @ $30.12 · Option exercise (M): 41,076 (derivative) @ $0 | EDGAR |
| 2026-03-18 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 64,768 @ $4.01 · Sale (S): 64,768 @ $28.21 · Option exercise (M): 10,043 @ $4.01 · Sale (S): 10,043 @ $28.10 · Option exercise (M): 64,768 (derivative) @ $0 · Option exercise (M): 10,043 (derivative) @ $0 | EDGAR |
| 2026-03-16 | 4/A | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 94,224 @ $4.01 · Option exercise (M): 15,174 @ $3.85 · Sale (S): 107,961 @ $26.15 · Sale (S): 12,068 @ $27.13 · Option exercise (M): 94,224 (derivative) @ $0 · Option exercise (M): 15,174 (derivative) @ $0 | EDGAR |
| 2026-03-13 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 109,398 @ $4.01 · Sale (S): 107,961 @ $26.15 · Sale (S): 12,068 @ $27.13 · Option exercise (M): 109,398 (derivative) @ $0 | EDGAR |
| 2026-02-03 | 4 | Centessa Pharmaceuticals plc (CNTA) | Tax withholding (F): 10,606 @ $24.57 · Grant/award (A): 29,000 @ $0 · Grant/award (A): 117,000 (derivative) @ $0 | EDGAR |
| 2025-02-10 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 30,526 @ $4.01 · Sale (S): 30,526 @ $19.03 · Option exercise (M): 429 @ $4.01 · Sale (S): 429 @ $18.99 · Option exercise (M): 30,526 (derivative) @ $0 · Option exercise (M): 429 (derivative) @ $0 | EDGAR |
| 2025-02-04 | 4 | Centessa Pharmaceuticals plc (CNTA) | Tax withholding (F): 10,732 @ $16.92 · Sale (S): 6,471 @ $16.86 · Grant/award (A): 120,000 (derivative) @ $0 | EDGAR |
| 2024-12-17 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 5,876 @ $3.85 · Sale (S): 5,876 @ $17.01 · Option exercise (M): 10,624 @ $3.85 · Sale (S): 10,624 @ $17.32 · Option exercise (M): 5,876 (derivative) @ $0 · Option exercise (M): 10,624 (derivative) @ $0 | EDGAR |
| 2024-03-26 | 4 | Centessa Pharmaceuticals plc (CNTA) | Option exercise (M): 25,010 @ $4.01 · Option exercise (M): 19,990 @ $3.85 · Sale (S): 29,995 @ $11.66 · Sale (S): 21,165 @ $12.21 · Option exercise (M): 25,010 (derivative) @ $0 · Option exercise (M): 19,990 (derivative) @ $0 | EDGAR |
| 2024-02-02 | 4 | Centessa Pharmaceuticals plc (CNTA) | Grant/award (A): 31,250 @ $0 · Tax withholding (F): 7,265 @ $8.19 · Grant/award (A): 125,000 (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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