Who
Paul Yoonku Cho
General Counsel and Secretary
Company insider
Files Form 4 as: General Counsel and Secretary, Ultra Clean Holdings.
In numbers
- Trades disclosed
- 54
- Buys
- 0
- Sells
- 9
- Bought
- $0
- Sold
- $1.6M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 25 Oct 2019
- Last trade
- 2 Jun 2026
- Last filed
- 4 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 2 Jun 2026filed 4 Jun 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $84K944 at $89.37 | filing |
| 2 Jun 2026filed 4 Jun 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $84K944 at $89.37 | filing |
| 22 May 2026filed 27 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code A | —8,041 at $0.00 | filing |
| 22 May 2026filed 27 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code A | —8,041 at $0.00 | filing |
| 8 May 2026filed 12 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $174K2,000 at $86.89 | filing |
| 8 May 2026filed 12 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $174K2,000 at $86.89 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $124K1,582 at $78.15 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $114K1,465 at $78.15 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $192K2,454 at $78.15 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $124K1,582 at $78.15 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $114K1,465 at $78.15 | filing |
| 30 Apr 2026filed 4 May 2026 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $192K2,454 at $78.15 | filing |
| 6 Jun 2025filed 10 Jun 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $86K4,084 at $21.06 | filing |
| 30 Apr 2025filed 2 May 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $30K1,579 at $18.71 | filing |
| 30 Apr 2025filed 2 May 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $27K1,462 at $18.71 | filing |
| 30 Apr 2025filed 2 May 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $19K995 at $18.71 | filing |
| 25 Apr 2025filed 29 Apr 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code A | —14,472 at $0.00 | filing |
| 31 Mar 2025filed 2 Apr 2025 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $3,704173 at $21.41 | filing |
| 17 May 2024filed 21 May 2024 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Sold | $154K3,449 at $44.79 | filing |
| 30 Apr 2024filed 2 May 2024 | UCTT Ultra Clean HoldingsSemiconductor Equipment | SEC FORM 4 Code F | $42K993 at $41.83 | filing |
News
Ultra Clean (NASDAQ:UCTT) Shares Gap Up – Here's WhyUCTT · themarketsdaily.com · 19 Oct 2026BSL at SEMICON West 2026: Ultra-Clean Processes with Global PartnersUCTT · manilatimes.net · 17 Oct 2026Cleanova expands semiconductor and ultra-clean controlled environment filtration capabilities with strategic acquisition of SV TechsolUCTT · cieonline.co.uk · 14 Oct 2026
0 headlines in the last 90 days name Paul Yoonku Cho; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.