Sotera Health Company (SHC) Insider Trading

Last 12 months

Insiders sold $36.3M and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Executive Chairman Michael B. Petras Jr. sold $21.2M on Aug 17, 21% of their stake, outside a plan. No executive or director has bought shares on the open market in the last two years.

Net open-market

−$36.3M

0 buys · 3 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 2

executives and directors

Last open-market buy

None

in the last two years

Get an email when SHC's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 17	Michael B. Petras Jr. Executive Chairman	SoldNo plan 2 parts	1,144,515	$18.50 average	$21.2M	21%	Form 4
Aug 7	Michael P Rutz President of Sterigenics	SoldNo plan	150,000	$18.84	$2.83M	31%	Form 4
May 13	Warburg Pincus (cayman) XI, L.p. Large holder	SoldNo plan	19,102,952	$15.17	$290M	100%	Form 4
May 13	Warburg Pincus XI, L.p. Large holder	SoldNo plan	19,102,952	$15.17	$290M	100%	Form 4
May 13	Gtcr Fund Xi/c LP Large holder	SoldNo plan	12,735,301	$15.17	$193M	100%	Form 4
Mar 6	Warburg Pincus Partners GP LLC Large holder	SoldNo plan	15,000,000	$15.27	$229M	44%	Form 4
Mar 6	Warburg Pincus Partners II, L.p. Large holder	SoldNo plan	15,000,000	$15.27	$229M	44%	Form 4
Mar 6	Gtcr Co-Invest XI LP Large holder	SoldNo plan	10,000,000	$15.27	$153M	44%	Form 4
Dec 8, 2025	Michael B. Petras Jr. Chairman & CEO	SoldNo plan 3 parts	750,000	$16.45 average	$12.3M	12%	Form 4
Dec 3, 2025	Warburg Pincus LLC Large holder	SoldNo plan	9,720,000	$16.33	$159M	22%	Form 4
Dec 3, 2025	Warburg Pincus Partners GP LLC Large holder	SoldNo plan	9,720,000	$16.33	$159M	22%	Form 4
Dec 3, 2025	Gtcr Fund Xi/a LP Large holder	SoldNo plan	6,480,000	$16.33	$106M	22%	Form 4
Nov 10, 2025	Warburg Pincus Private Equity Xi-C, L.p. Large holder	SoldNo plan	18,000,000	$15.65	$282M	29%	Form 4
Nov 10, 2025	Warburg Pincus Partners II, L.p. Large holder	SoldNo plan	18,000,000	$15.65	$282M	29%	Form 4
Nov 10, 2025	Gtcr Fund Xi/a LP Large holder	SoldNo plan	12,000,000	$15.65	$188M	29%	Form 4
Sep 5, 2025	Warburg Pincus Xi-C, LLC Large holder	SoldNo plan	12,000,000	$15.11	$181M	16%	Form 4
Sep 5, 2025	Warburg Pincus & CO. Large holder	SoldNo plan	12,000,000	$15.11	$181M	16%	Form 4
Sep 5, 2025	Gtcr Investment XI LLC Large holder	SoldNo plan	8,000,000	$15.11	$121M	16%	Form 4
Aug 22, 2025	Michael P Rutz President of Sterigenics	SoldNo plan	126,611	$16.38	$2.07M	22%	Form 4

Aug 17No plan
Michael B. Petras Jr.
Executive Chairman · sold 1,144,515 at avg $18.50
$21.2M
21% of stake
Aug 7No plan
Michael P Rutz
President of Sterigenics · sold 150,000 at $18.84
$2.83M
31% of stake
May 13No plan
Warburg Pincus (cayman) XI, L.p.
Large holder · sold 19,102,952 at $15.17
$290M
100% of stake
May 13No plan
Warburg Pincus XI, L.p.
Large holder · sold 19,102,952 at $15.17
$290M
100% of stake
May 13No plan
Gtcr Fund Xi/c LP
Large holder · sold 12,735,301 at $15.17
$193M
100% of stake
Mar 6No plan
Warburg Pincus Partners GP LLC
Large holder · sold 15,000,000 at $15.27
$229M
44% of stake
Mar 6No plan
Warburg Pincus Partners II, L.p.
Large holder · sold 15,000,000 at $15.27
$229M
44% of stake
Mar 6No plan
Gtcr Co-Invest XI LP
Large holder · sold 10,000,000 at $15.27
$153M
44% of stake
Dec 8, 2025No plan
Michael B. Petras Jr.
Chairman & CEO · sold 750,000 at avg $16.45
$12.3M
12% of stake
Dec 3, 2025No plan
Warburg Pincus LLC
Large holder · sold 9,720,000 at $16.33
$159M
22% of stake
Dec 3, 2025No plan
Warburg Pincus Partners GP LLC
Large holder · sold 9,720,000 at $16.33
$159M
22% of stake
Dec 3, 2025No plan
Gtcr Fund Xi/a LP
Large holder · sold 6,480,000 at $16.33
$106M
22% of stake
Nov 10, 2025No plan
Warburg Pincus Private Equity Xi-C, L.p.
Large holder · sold 18,000,000 at $15.65
$282M
29% of stake
Nov 10, 2025No plan
Warburg Pincus Partners II, L.p.
Large holder · sold 18,000,000 at $15.65
$282M
29% of stake
Nov 10, 2025No plan
Gtcr Fund Xi/a LP
Large holder · sold 12,000,000 at $15.65
$188M
29% of stake
Sep 5, 2025No plan
Warburg Pincus Xi-C, LLC
Large holder · sold 12,000,000 at $15.11
$181M
16% of stake
Sep 5, 2025No plan
Warburg Pincus & CO.
Large holder · sold 12,000,000 at $15.11
$181M
16% of stake
Sep 5, 2025No plan
Gtcr Investment XI LLC
Large holder · sold 8,000,000 at $15.11
$121M
16% of stake
Aug 22, 2025No plan
Michael P Rutz
President of Sterigenics · sold 126,611 at $16.38
$2.07M
22% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch SHC, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in SHC's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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