X0306 4 2022-07-06 1 0001102934 CMC Materials, Inc. CCMP 0001379529 WILD GEOFFREY C/O CMC MATERIALS, INC. 870 N. COMMONS DRIVE AURORA IL 60504 1 Common Stock 2022-07-06 4 D 0 12047 D 0 D Stock Options (Right to Buy) 41.88 2022-07-06 4 D 0 7500 0 D 2015-09-01 2025-09-01 Common Stock 7500 0 D Stock Options (Right to Buy) 41.88 2022-07-06 4 D 0 6000 0 D 2016-09-01 2025-09-01 Common Stock 6000 0 D Stock Options (Right to Buy) 39.29 2022-07-06 4 D 0 9638 0 D 2017-03-08 2026-03-08 Common Stock 9638 0 D Stock Options (Right to Buy) 69.44 2022-07-06 4 D 0 4811 0 D 2018-03-07 2027-03-07 Common Stock 4811 0 D Stock Options (Right to Buy) 106.61 2022-07-06 4 D 0 3385 0 D 2019-03-06 2028-03-06 Common Stock 3385 0 D Stock Options (Right to Buy) 110.09 2022-07-06 4 D 0 2972 0 D 2020-03-06 2029-03-06 Common Stock 2972 0 D Stock Options (Right to Buy) 147.78 2022-07-06 4 D 0 1958 0 D 2021-03-04 2030-03-04 Common Stock 1958 0 D Stock Options (Right to Buy) 170.86 2022-07-06 4 D 0 1305 0 D 2022-03-03 2031-03-03 Common Stock 1305 0 D Disposed of in connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of December 14, 2021 (the "Merger Agreement"), by and among the Issuer, Entegris, Inc. ("Entegris") and Yosemite Merger Sub, Inc. ("Merger Sub"), a Delaware corporation and a wholly owned subsidiary of Entegris, pursuant to which the Issuer was merged with and into Merger Sub, with the Issuer surviving as a wholly owned subsidiary of Entegris (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger, each share of Issuer common stock was cancelled and converted into (i) $133.00 in cash and (ii) 0.4506 of a share of Entegris common stock, with cash in lieu of any fractional shares of Entegris common stock (together, the "Merger Consideration"). The Merger closed on July 6, 2022. On July 5, 2022, the closing price of the Issuer was $173.69, and the closing price of Entegris was $90.75. As a result of the Merger, the reporting person no longer beneficially owns, directly or indirectly, any shares of Issuer common stock. Pursuant to the Merger Agreement, at the effective time of the Merger, each outstanding option to purchase shares of Issuer common stock (an "Issuer Option") vested in full and was assumed and converted into an option to purchase shares of Entegris common stock (an "Entegris Option"), as adjusted based on the Equity Award Exchange Ratio (as defined in the Merger Agreement). This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 9/1/2015, vested in full and was assumed and converted into an Entegris Option to purchase 13,654 shares of Entegris common stock an exercise price of $23.01 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 9/1/2016, vested in full and was assumed and converted into an Entegris Option to purchase 10,923 shares of Entegris common stock an exercise price of $23.01 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/8/2017, vested in full and was assumed and converted into an Entegris Option to purchase 17,546 shares of Entegris common stock an exercise price of $21.59 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/7/2018, vested in full and was assumed and converted into an Entegris Option to purchase 8,758 shares of Entegris common stock an exercise price of $38.15 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/6/2019, vested in full and was assumed and converted into an Entegris Option to purchase 6,162 shares of Entegris common stock an exercise price of $58.56 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/6/2020, vested in full and was assumed and converted into an Entegris Option to purchase 5,410 shares of Entegris common stock an exercise price of $60.47 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/4/2021, vested in full and was assumed and converted into an Entegris Option to purchase 3,564 shares of Entegris common stock an exercise price of $81.18 per share. This Issuer Option, which originally provided for vesting in four equal annual installments beginning on 3/3/2022, vested in full and was assumed and converted into an Entegris Option to purchase 2,375 shares of Entegris common stock an exercise price of $93.85 per share. /s/ H. Carol Bernstein (Power of Attorney) 2022-07-06