Cho Paul Yoonku — SEC Form 4 filings
SEC reporting owner CIK 1791106. 12 Form 4 filings on record with FilingPulse; latest filed 2026-06-04.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-04-02 to 2026-06-04. 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 4 filings — 10,477 shares, $498,643 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 16.
- Largest priced transaction: sale of 2,000 shares @ $86.89 ($173,780) in Ultra Clean Holdings, Inc., filed 2026-05-12.
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 |
|---|---|---|---|---|---|
| Ultra Clean Holdings, Inc. (UCTT) | General Counsel and Secretary | 12 | — | 4 legs · 10,477 sh · $498,643 | 16 |
Form 4 filings — Cho Paul Yoonku
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-04 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Sale (S): 944 @ $89.37 | EDGAR |
| 2026-05-27 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Grant/award (A): 8,041 @ $0 | EDGAR |
| 2026-05-12 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Sale (S): 2,000 @ $86.89 | EDGAR |
| 2026-05-04 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Tax withholding (F): 1,582 @ $78.15 · Tax withholding (F): 1,465 @ $78.15 · Tax withholding (F): 2,454 @ $78.15 | EDGAR |
| 2025-06-10 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Sale (S): 4,084 @ $21.06 | EDGAR |
| 2025-05-02 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Tax withholding (F): 1,579 @ $18.71 · Tax withholding (F): 1,462 @ $18.71 · Tax withholding (F): 995 @ $18.71 | EDGAR |
| 2025-04-29 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Grant/award (A): 14,472 @ $0 | EDGAR |
| 2025-04-02 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Tax withholding (F): 173 @ $21.41 | EDGAR |
| 2024-05-21 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Sale (S): 3,449 @ $44.79 | EDGAR |
| 2024-05-02 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Tax withholding (F): 993 @ $41.83 · Tax withholding (F): 614 @ $41.83 · Tax withholding (F): 1,576 @ $41.83 | EDGAR |
| 2024-04-30 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Grant/award (A): 8,644 @ $0 | EDGAR |
| 2024-04-02 | 4 | Ultra Clean Holdings, Inc. (UCTT) | Grant/award (A): 363 @ $0 · Tax withholding (F): 183 @ $45.94 · Tax withholding (F): 173 @ $45.94 | 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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