InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (1 ops.)
Insider track record
OtherDisclosed buys
0
Disclosed sells
1
T+90 hit rate
26%
T+90 mean return
+1.8%
Across 19 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the complete record of transactions filed by Siu Chris. Officer active across 2 companies, notably Ultra Clean Holdings, Inc.. In total, 30 filings have been recorded. Split: 0 buy · 1 sell. Total volume traded: €8k. Activity tracked since 30 April 2021. The latest transaction was filed on 1 June 2026 (Retenue fiscale). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations30 total
6,165 sharesCommon StockSEC:0001040470-26-000195:0
6,079 sharesCommon StockSEC:0001040470-26-000195:1
2,213 sharesCommon StockSEC:0001040470-26-000195:2
1,139 sharesCommon StockSEC:0001040470-26-000195:3
350 shares@ US$93.620.0010% mcap13.6% of flowCommon StockSEC:0001040470-26-000166:0
697 shares@ US$70.430.0014% mcap20.2% of flowCommon StockSEC:0001040470-26-000104:0
695 shares@ US$23.496.8% of flowCommon StockSEC:0001040470-25-000060:0
349 shares@ US$24.883.6% of flowCommon StockSEC:0001593968-25-000990:0
836 shares@ US$8.5153.0% of flowCommon StockSEC:0001593968-25-000468:0
2,175 shares@ US$6.67256.5% of flowCommon StockSEC:0001593968-25-000448:0
420 shares@ US$8.851.7% of flowCommon StockSEC:0001593968-25-000273:0
836 shares@ US$15.996.3% of flowCommon StockSEC:0001593968-25-000052:0
348 shares@ US$12.702.0% of flowCommon StockSEC:0001593968-24-001464:0
693 shares@ US$16.024.9% of flowCommon StockSEC:0001593968-24-001267:0
427 shares@ US$10.4211.9% of flowCommon StockSEC:0001593968-24-001242:0
348 shares@ US$13.512.0% of flowCommon StockSEC:0001593968-24-001111:0
31,039 shares0Common StockSEC:0001593968-24-000981:0
339 shares@ US$11.171.7% of flowCommon StockSEC:0001593968-24-000855:0
1,600 shares@ US$10.49757.5% of flowCommon StockSEC:0001593968-24-000554:0
397 shares@ US$17.663.1% of flowCommon StockSEC:0001593968-24-000375:0
322 shares@ US$25.2663.6% of flowCommon StockSEC:0001593968-23-001496:0
15,572 shares0Common StockSEC:0001654954-23-011559:0
503 shares@ US$51.6411.5% of flowCommon StockSEC:0001654954-23-011559:1
439 shares@ US$27.3360.0010% mcap2.6% of flowCommon StockSEC:0000950103-22-010052:0
6,235 shares0Common StockSEC:0000950103-22-007880:0
25 of 30 declarations
About Siu Chris
Siu Chris is a director at Ultra Clean Holdings, Inc.
