Cook Christopher S (CIK 1927266) reported 6 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2025-09-03). Recent activity: Buy UCTI (73,686 shares), Sell UCTT (1,855 shares), Sell UCTT (2,225 shares), Sell UCTT (2,550 shares), Buy UCTT (27,831 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-03 | Ultra Clean Holdings, Inc. (UCTI) | President, Products Division | Buy | 73,686 | $0 |
| 2025-05-02 | Ultra Clean Holdings, Inc. (UCTT) | President, Products Division | Sell | 1,855 | $34,707 |
| 2025-05-02 | Ultra Clean Holdings, Inc. (UCTT) | President, Products Division | Sell | 2,225 | $41,630 |
| 2025-05-02 | Ultra Clean Holdings, Inc. (UCTT) | President, Products Division | Sell | 2,550 | $47,710 |
| 2025-04-29 | Ultra Clean Holdings, Inc. (UCTT) | President, Products Division | Buy | 27,831 | $0 |
| 2025-03-11 | Ultra Clean Holdings, Inc. (UCTT) | President, Products Division | Buy | 4,100 | $103,730 |
Source: SEC Form 4 filings · as of 2025-09-03