Michael B. Petras Jr. Sotera Health CO (SHC) insider trading activity

Michael B. Petras Jr. is Chairman & CEO of Sotera Health Co. Currently has a direct ownership of 552,790 shares of SHC, which is worth approximately $8.65 Million. The most recent transaction as insider was on Dec 08, 2025, when has been sold 315,896 shares (Common Stock, $0.01 par value per share ("Common Stock")) at a price of $16.45 per share, resulting in proceeds of $5,196,489. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 553K

36.36% 3M change

17.56% 12M change

Total Value Held $8.65 Million

Michael B. Petras Jr. Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 08 2025	SELL Open market or private sale	$5,196,489 $16.45 p/Share	315,896 Reduced 36.36%	552,790 Common Stock, $0.01 pa...
Mar 03 2025	BUY Grant, award, or other acquisition	-	298,953 Added 25.61%	868,603 Common Stock
Mar 02 2025	SELL Payment of exercise price or tax liability	$908,551 $12.47 p/Share	72,859 Reduced 11.34%	569,650 Common Stock
Mar 02 2025	SELL Payment of exercise price or tax liability	$349,035 $12.47 p/Share	27,990 Reduced 4.17%	642,509 Common Stock, $0.01 pa...
Nov 20 2024	SELL Payment of exercise price or tax liability	$386,392 $13.21 p/Share	29,250 Reduced 4.18%	670,499 Common Stock, $0.01 pa...
Mar 04 2024	BUY Grant, award, or other acquisition	-	274,160 Added 28.15%	699,749 Common Stock, $0.01 pa...
Mar 02 2024	SELL Payment of exercise price or tax liability	$721,651 $14.56 p/Share	49,564 Reduced 10.43%	425,589 Common Stock, $0.01 pa...

Nov 20 2023	SELL Payment of exercise price or tax liability	$407,452 $13.93 p/Share	29,250 Reduced 5.0%	555,418 Common Stock, $0.01 pa...
Mar 06 2023	BUY Grant, award, or other acquisition	-	213,189 Added 26.72%	584,668 Common Stock, $0.01 pa...
Mar 02 2023	SELL Payment of exercise price or tax liability	$345,431 $17.41 p/Share	19,841 Reduced 5.07%	371,479 Common Stock, $0.01 pa...
Nov 20 2022	SELL Payment of exercise price or tax liability	$176,091 $6.02 p/Share	29,251 Reduced 6.96%	391,320 Common Stock, $0.01 pa...
Mar 02 2022	BUY Grant, award, or other acquisition	-	187,219 Added 30.8%	420,571 Common Stock, $0.01 pa...
Nov 20 2021	SELL Payment of exercise price or tax liability	$620,233 $22.54 p/Share	27,517 Reduced 10.55%	233,352 Common Stock, $0.01 pa...
Nov 20 2020	BUY Grant, award, or other acquisition	-	260,869 Added 50.0%	260,869 Common Stock, $0.01 pa...

MBP

Michael B. Petras Jr.

Chairman & CEO

Broadview Heights, OH

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