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Total declarations
Company
▲ Purchases (1 ops.)
▼ Sales (2 ops.)
Latest filing published 27 May 2026 for Ultra Clean Holdings, Inc.. Read the official filing
Filing timeline
BuySaleChristopher S. Cook
Insider track record
Disclosed buys
1
Disclosed sells
2
Signal history
Closed purchases
Market purchases
1
Not enough history yet: 1 closed purchase, at least 2 are needed.
Purchases by company
Since each purchase
- +128.1%Entry US$24.58 · Close at T+365 US$56.06
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Christopher S. Cook: trading record in brief
All filings by Christopher S. Cook on record concern Ultra Clean Holdings, Inc. Over a trading history stretching from 28 April 2023 to 22 May 2026, the count stands at 10 filings.
Both buying and selling appear: 1 purchase worth €96k, against 2 sales worth €463k. The net balance comes to €366k on the selling side. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. The rest of the record consists of 7 share grants.
The record was last updated on 27 May 2026 with a share grant in Ultra Clean Holdings, Inc. The last purchase on record was published on 11 March 2025, which is 586 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 4 days. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to Christopher S. Cook
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Declarations10 total
13,196 shares0Common StockSEC:0000950103-26-007863:0
73,686 shares0Common StockSEC:0000950103-25-011240:0
1,855 shares@ US$18.714.5% of flowCommon StockSEC:0000950103-25-005713:0
27,831 shares0Common StockSEC:0000950103-25-005447:0
4,100 shares@ US$25.29514.2% of flowCommon StockSEC:0000950103-25-003280:0
Canonical exit: 5 Jun 2025 (T+90)
8,586 shares@ US$43.510551.2% of flowCommon StockSEC:0000950103-24-006619:0
2,219 shares@ US$41.8312.9% of flowCommon StockSEC:0000950103-24-006313:0
15,560 shares0Common StockSEC:0000950103-24-006079:0
4,662 shares@ US$26.6817.2% of flowCommon StockSEC:0000950103-24-005329:0
18,661 shares0Common StockSEC:0000950103-23-006768:0
10 of 10 declarations
