Ernie Maddock

Currently holds a position at Ultra Clean Holdings Inc

2.6

2.6

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

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value
2025-03-11	2025-03-07	Ultra Clean Holdings Inc (UCTT)	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	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	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	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	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	Graf Industrial Corp (GRAF)	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	Graf Industrial Corp (GRAF)	B Purchase	10,000 +inf% 2.64 US$26,400	10,000 +inf%	2.64	US$26,400