QUODD

Insider Transactions last 24 months for Sotera Health Company - NSDQ: SHC

Transactions
All	Buy	Sell	Option Exercise

Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Gtcr Investment Xi Llc	Director	09/05/2025	DS	Indirect	COM	8,000,000	$15.11	$120,888,000.00	41,215,301
Warburg Pincus & Co.	Director	09/05/2025	DS	Indirect	COM	12,000,000	$15.11	$181,332,000.00	61,822,952
Warburg Pincus & Co.	Director	09/05/2025	DS	Indirect	COM	12,000,000	$15.11	$181,332,000.00	61,822,952
Rutz Michael P	President of Sterigenics	08/22/2025	DS	Direct	COM	126,611	$16.38	$2,074,306.00	450,204
Lyons Jonathan M.	Sr. Vice President, CFO	08/05/2025	DF	Direct	COM	11,508	$11.19	$128,774.52	189,602
Simon, Christopher	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	19,132
Chen Ruoxi	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	80,781
Cunningham Sean Laurence	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	80,781
Klee Ann R.	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	125,956
Mihas Constantine S	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	80,781
Neary James	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	80,781
Petrella Vincent K	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	80,781
Wheadon David E.	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	74,912
Knauss Robert Brown	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	54,933
Flynn Karen	Director	05/22/2025	AA	Direct	COM	19,132	$0.00	$0.00	39,221
Dimitrief Alexander	SVP, General Counsel and Sec.	03/03/2025	AA	Direct	COM	56,053	$0.00	$0.00	334,725
Lyons Jonathan M.	Sr. Vice President, CFO	03/03/2025	AA	Direct	COM	37,369	$0.00	$0.00	201,110
Lyons Jonathan M.	Sr. Vice President, CFO	03/03/2025	AA	Direct	COM	59,790	$0.00	$0.00	163,741
Rutz Michael P	President of Sterigenics	03/03/2025	AA	Direct	COM	48,579	$0.00	$0.00	576,815
Petras Michael B. Jr.	Chairman & CEO	03/03/2025	AA	Direct	COM	298,953	$0.00	$0.00	868,603
Dimitrief Alexander	SVP, General Counsel and Sec.	03/02/2025	DF	Direct	COM	8,211	$12.47	$102,391.17	278,672
Lyons Jonathan M.	Sr. Vice President, CFO	03/02/2025	DF	Direct	COM	6,481	$12.47	$80,818.07	103,951
Rutz Michael P	President of Sterigenics	03/02/2025	DF	Direct	COM	5,399	$12.47	$67,325.53	528,236
Rutz Michael P	President of Sterigenics	03/02/2025	DF	Direct	COM	4,198	$12.47	$52,349.06	533,635
Rutz Michael P	President of Sterigenics	03/02/2025	DF	Direct	COM	3,687	$12.47	$45,976.89	537,833

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Transaction Type Key First letter: A = Acquired, D = Disposed Second letter: A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security \| D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) \| E = Expiration of short derivative position \| F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. \| G = Gift \| H = Expiration (or cancellation) of long derivative position with value received \| I = Discretionary transaction in accordance with Rule 16b-3(f) \| J = Other \| L = Small acquisition under Rule 16a-6 \| M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 \| O = Exercise of out-of-the-money derivative security \| P = Open market or private purchase \| S = Open market or private sale \| U = Disposition pursuant to a tender of shares in a change of control transaction \| W = Acquisition or disposition by will or the laws of descent and distribution \| X = Exercise of in-the-money or at-the-money derivative security \| Z = Deposit into or withdrawal from voting trust		Send to Excel

Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust

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