Chen Tien-Szu — SEC Form 4 filings
SEC reporting owner CIK 2116549. 2 Form 4 filings on record with FilingPulse; latest filed 2026-09-09.
Transaction summary — filings shown
Covers all 2 filings on record, filed 2026-04-22 to 2026-09-09. 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): 4 legs across 1 filing — 530,000 shares, $247,136,998 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 1.
- Largest priced transaction: sale of 328,000 shares @ $465.11 ($152,554,998) in ASE Technology Holding Co., Ltd., filed 2026-04-22.
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 |
|---|---|---|---|---|---|
| ASE Technology Holding Co., Ltd. (ASX) | GM, ASE Inc. Chung-Li Branch | 2 | — | 4 legs · 530,000 sh · $247,136,998 | 1 |
Form 4 filings — Chen Tien-Szu
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-09 | 4 | ASE Technology Holding Co., Ltd. (ASX) | Grant/award (A): 300,000 @ $0 | EDGAR |
| 2026-04-22 | 4 | ASE Technology Holding Co., Ltd. (ASX) | Sale (S): 328,000 @ $465.11 · Sale (S): 72,000 @ $466 · Sale (S): 50,000 @ $467 · Sale (S): 80,000 @ $471 | 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=2116549 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →