Kirby William C. — SEC Form 4 filings
SEC reporting owner CIK 1413483. 4 Form 4 filings on record with FilingPulse; latest filed 2026-02-27.
Transaction summary — filings shown
Covers all 4 filings on record, filed 2024-01-12 to 2026-02-27. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 50,687 shares, $3,289,580 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, …): 3.
- Largest priced transaction: purchase of 50,687 shares @ $64.90 ($3,289,580) in TAIWAN FUND INC, filed 2026-02-27.
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 |
|---|---|---|---|---|---|
| TAIWAN FUND INC (TWN) | Director | 1 | 1 leg · 50,687 sh · $3,289,580 | — | — |
| CABOT CORP (CBT) | Director | 3 | — | — | 3 |
Form 4 filings — Kirby William C.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-02-27 | 4 | TAIWAN FUND INC (TWN) | Purchase (P): 50,686.90 @ $64.90 | EDGAR |
| 2026-01-12 | 4 | CABOT CORP (CBT) | Grant/award (A): 486 @ $0 | EDGAR |
| 2025-01-14 | 4 | CABOT CORP (CBT) | Grant/award (A): 1,788 @ $0 | EDGAR |
| 2024-01-12 | 4 | CABOT CORP (CBT) | Grant/award (A): 2,035 @ $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=1413483 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →