InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (8 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
8
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
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, 23 reports have been logged. Breakdown: 0 buy · 8 sells. Total volume traded: €1m. Activity tracked since 30 April 2021. The latest transaction was filed on 2 June 2026 (Cession). Regulator: SEC (Form 4). The full history is accessible without signup.
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Declarations23 total
944 shares@ US$89.370.0013% mcap4.0% of flowCommon StockSEC:0000950103-26-008550:0
8,041 shares0Common StockSEC:0000950103-26-007862:0
4,084 shares@ US$21.06065.6% of flowCommon StockSEC:0000950103-25-007239:0
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$55.243132.9% of flowCommon StockSEC:0000950103-21-017461:0
2,982 shares@ US$42.988.2% of flowCommon StockSEC:0000950103-21-016709:0
3,637 shares0Common StockSEC:0000950103-21-006728:0
23 of 23 declarations
About Cho Paul Yoonku
Cho Paul Yoonku is General Counsel and Secretary at Ultra Clean Holdings, Inc. (XNAS). He has 23 filings in total, and across the 23 sampled filings the transactions are entirely sales, totaling EUR 1049840, between 2021-05-04 and 2026-06-04.
