Kim Helen Susan — SEC Form 4 filings
SEC reporting owner CIK 1422772. 3 Form 4 filings on record with FilingPulse; latest filed 2026-01-12.
Transaction summary — filings shown
Covers all 3 filings on record, filed 2024-05-17 to 2026-01-12. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 1 filing — 835,000 shares, $15,030,000 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, …): 8.
- Largest priced transaction: purchase of 812,455 shares @ $18.00 ($14,624,190) in Aktis Oncology, Inc., filed 2026-01-12.
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 |
|---|---|---|---|---|---|
| Aktis Oncology, Inc. (AKTS) | Director, 10% owner | 1 | 2 legs · 835,000 sh · $15,030,000 | — | 6 |
| PROTHENA CORP PUBLIC LTD CO (PRTA) | Director | 2 | — | — | 2 |
Form 4 filings — Kim Helen Susan
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-01-12 | 4 | Aktis Oncology, Inc. (AKTS) | Conversion (C): 4,859,370 · Purchase (P): 812,455 @ $18 · Conversion (C): 134,842 · Purchase (P): 22,545 @ $18 · Conversion (C): 14,838,250 (derivative) @ $0 · Conversion (C): 411,750 (derivative) @ $0 · +2 more | EDGAR |
| 2025-05-16 | 4 | PROTHENA CORP PUBLIC LTD CO (PRTA) | Grant/award (A): 20,183 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | PROTHENA CORP PUBLIC LTD CO (PRTA) | Grant/award (A): 15,000 (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.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=1422772 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →