InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (7 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
7
T+90 hit rate
44%
T+90 mean return
-1.7%
Across 16 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by Cho Paul Yoonku, Conseiller Juridique et Secrétaire. Insider active across 1 company, notably Ultra Clean Holdings, Inc.. In total, 24 reports have been logged. Breakdown: 0 buy · 7 sells. Total volume traded: €1.3m. Activity tracked since 30 April 2021. The latest transaction was filed on 22 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations24 total
8,041 shares0Common StockSEC:0000950103-26-007862:0
1,579 shares@ US$18.711.5% of flowCommon StockSEC:0000950103-25-005714:0
14,472 shares0Common StockSEC:0000950103-25-005453:0
173 shares@ US$21.410.2% of flowCommon StockSEC:0000950103-25-004328:0
3,449 shares@ US$44.79158.1% of flowCommon StockSEC:0000950103-24-006984:0
993 shares@ US$41.832.2% of flowCommon StockSEC:0000950103-24-006314:0
8,644 shares0Common StockSEC:0000950103-24-006077:0
363 shares0Common StockSEC:0000950103-24-004814:0
4,689 shares@ US$28.38017.0% of flowCommon StockSEC:0000950103-23-017266:0
176 shares@ US$36.1010.3% of flowCommon StockSEC:0000950103-23-008253:0
9,330 shares0Common StockSEC:0000950103-23-006770:0
166 shares@ US$33.160.3% of flowCommon StockSEC:0000950103-23-005418:0
2,949 shares@ US$29.41075.1% of flowCommon StockSEC:0000950103-22-019324:0
2,785 shares@ US$31.115.0% of flowCommon StockSEC:0000950103-22-019104:0
3,536 shares@ US$30.40940.0089% mcap8.3% of flowCommon StockSEC:0000950103-22-008476:0
5,879 shares0Common StockSEC:0000950103-22-007874:0
667 shares@ US$33.560.0018% mcap1.7% of flowCommon StockSEC:0000950103-22-007062:0
1,026 shares0Common StockSEC:0000950103-22-005425:0
9,247 shares@ US$55.24310.038% mcap36.0% of flowCommon StockSEC:0000950103-21-017461:0
9,247 shares@ US$55.24310.038% mcap80.0% of flowCommon StockSEC:0000950103-21-017461
2,982 shares@ US$42.980.0096% mcap9.0% of flowCommon StockSEC:0000950103-21-016709:0
2,982 shares@ US$42.986.3% of flowCommon StockSEC:0000950103-21-016709
3,637 shares0Common StockSEC:0000950103-21-006728:0
3,637 shares0Common StockSEC:0000950103-21-006728
24 of 24 declarations
About Cho Paul Yoonku
Paul Yoonku Cho is General Counsel and Secretary at Ultra Clean Holdings, Inc. In this role, he oversees all legal matters for the company, including regulatory compliance and risk management. His expertise in corporate law is crucial for protecting the company's legal interests. He also plays a key role in corporate governance.
