Ernie Maddock

Track

Insider profile

Currently holds a position at Ultra Clean Holdings Inc

Performance

Overall performance
2.6
Performance over holding periods
2.6
30 days 90 days 120 days
Average return -12% 8.2% 15.1%
Success rate 27% 68% 82%
Transactions
5 100% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Independent Director Ultra Clean Holdings Inc June 1, 2018 -
Chief Financial Officer, Senior Vice President Micron Technology Inc June 1, 2015 - Feb. 19, 2018
Chief Financial Officer, Senior Vice President Micron Technology Inc June 1, 2017 - Feb. 19, 2018
Chief Financial Officer, Vice President - Finance, Principal Financial & Accounting Officer Micron Technology Inc June 1, 2015 - June 1, 2017
Independent Director Intersil Corp July 8, 2015 - Feb. 24, 2017
Chief Financial Officer, Senior Vice President, Chief Accounting Officer Lam Research Corp Sept. 29, 2008 - March 11, 2013
Ernie Maddock's trades of Ultra Clean Holdings Inc's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
US Ouster Inc (OUST)
Transaction date
Purchase
Price
127.68
Quantity 44,650 -25.4%
Value US$3,579,046
US Teradyne Inc (TER)
Transaction date
Purchase
Price
464.08
Quantity 47,347 +16.1%
Value US$2,658,140
US Ouster Inc (OUST)
Transaction date
Purchase
Price
5.29
Quantity 7,000 +18.0%
Value US$37,012
US Ouster Inc (OUST)
Transaction date
Purchase
Price
6.02
Quantity 7,000 +21.9%
Value US$42,140
Transaction date
Purchase
Price
2.35
Quantity 10,000 +100.0%
Value US$23,500
Transaction date
Purchase
Price
2.64
Quantity 10,000 +inf%
Value US$26,400
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-03-11 2025-03-07
B Purchase
79,894 -45.9%
453.16
US$2,315,643 		79,894 -45.9% 453.16 US$2,315,643
2024-08-19 2024-08-16
US Ouster Inc (OUST)
B Purchase
44,650 -25.4%
127.68
US$3,579,046 		44,650 -25.4% 127.68 US$3,579,046
2024-02-05 2024-02-01
US Teradyne Inc (TER)
B Purchase
47,347 +16.1%
464.08
US$2,658,140 		47,347 +16.1% 464.08 US$2,658,140
2023-11-16 2023-11-15
US Ouster Inc (OUST)
B Purchase
7,000 +18.0%
5.29
US$37,012 		7,000 +18.0% 5.29 US$37,012
2023-08-22 2023-08-21
US Ouster Inc (OUST)
B Purchase
7,000 +21.9%
6.02
US$42,140 		7,000 +21.9% 6.02 US$42,140
2022-03-08 2022-03-07
B Purchase
10,000 +100.0%
2.35
US$23,500 		10,000 +100.0% 2.35 US$23,500
2022-03-08 2022-03-04
B Purchase
10,000 +inf%
2.64
US$26,400 		10,000 +inf% 2.64 US$26,400