Cho Paul Yoonku
SEC insider (Form 3/4/5 filer). CIK 0001791106. General Counsel and Secretary at Ultra Clean Holdings, Inc. (UCTT) and 1 other issuer. 12 reported Form 4/5 transactions since Sep 2024; latest on Jun 2, 2026. Located in HAYWARD, CA.
Companies Cho Paul Yoonku has filed insider reports for
- Ultra Clean Holdings, Inc. (UCTT): Officer, General Counsel and Secretary
- Keystone Acquisition Corp. (KEYY): Director
Cho Paul Yoonku
CIK: 0001791106
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Jun 2, 2026UCTT
Ultra Clean Holdings, Inc.
SaleDirect944 shares at avg. $89.37$84K - May 22, 2026UCTT
Ultra Clean Holdings, Inc.
AwardDirect8K shares- - May 8, 2026UCTT
Ultra Clean Holdings, Inc.
SaleDirect2K shares at avg. $86.89$174K - Apr 30, 2026UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect1.6K shares at avg. $78.15$124K - Apr 30, 2026UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect1.5K shares at avg. $78.15$114K - Apr 30, 2026UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect2.5K shares at avg. $78.15$192K - Jun 6, 2025UCTT
Ultra Clean Holdings, Inc.
SaleDirect4.1K shares at avg. $21.06$86K - Apr 30, 2025UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect1.5K shares at avg. $18.71$27K - Apr 30, 2025UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect1.6K shares at avg. $18.71$30K - Apr 30, 2025UCTT
Ultra Clean Holdings, Inc.
Tax PaymentDirect995 shares at avg. $18.71$19K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 2, 2026 |  UCTT Ultra Clean Holdings, Inc. | Sale | 944 | $89.37 | $84,365 | Direct |
| May 22, 2026 | UCTT Ultra Clean Holdings, Inc. | Award | 8,041 | - | $0 | Direct |
| May 8, 2026 | UCTT Ultra Clean Holdings, Inc. | Sale | 2,000 | $86.89 | $173,780 | Direct |
| Apr 30, 2026 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 1,582 | $78.15 | $123,633 | Direct |
| Apr 30, 2026 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 1,465 | $78.15 | $114,490 | Direct |
| Apr 30, 2026 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 2,454 | $78.15 | $191,780 | Direct |
| Jun 6, 2025 | UCTT Ultra Clean Holdings, Inc. | Sale | 4,084 | $21.06 | $86,011 | Direct |
| Apr 30, 2025 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 1,462 | $18.71 | $27,354 | Direct |
| Apr 30, 2025 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 1,579 | $18.71 | $29,543 | Direct |
| Apr 30, 2025 | UCTT Ultra Clean Holdings, Inc. | Tax Payment | 995 | $18.71 | $18,616 | Direct |
1-10 of 12 transactions