Company · Ownership research

Sotera Health Co SHC

CIK 0001822479

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 37 rows; the complete set is available through the API.

Insider filings on file run through 2026-08-19.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $0.00
Sold: $4.33B

Sep 1, 2023 – Aug 19, 2026
Available records · partial months are marked ·

Insiders in this window

20269 of 9 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-08-17	Petras Michael B. Jr. Executive Chairman · Director	Sale	$5.45M 294,515 shares sold	42.53% sold Direct holding	▾
2026-08-17	Petras Michael B. Jr. Executive Chairman · Director	Sale	$15.73M 850,000 shares sold	17.64% sold Trust holding	▾
2026-08-07	Rutz Michael P President of Sterigenics	Sale	$2.83M 150,000 shares sold	30.97% sold Direct holding	▾
2026-05-13	WARBURG PINCUS & CO. · WARBURG PINCUS LLC · Warburg Pincus Private Equity XI-C, L.P. · Warburg Pincus XI-C, LLC · Warburg Pincus (Cayman) XI, L.P. · Warburg Pincus (Bermuda) Private Equity GP Ltd. · Warburg Pincus Partners GP LLC · Warburg Pincus Partners II (Cayman), L.P. Director · 10% owner	Sale	$289.75M 19,102,952 shares sold	Unavailable Indirect holding	▾
2026-05-13	WARBURG PINCUS & CO. · Warburg Pincus Private Equity XI, L.P. · WP XI Partners, L.P. · Warburg Pincus Private Equity XI-B, L.P. · Warburg Pincus XI, L.P. · WP Global LLC · Warburg Pincus XI Partners, L.P. · Warburg Pincus Partners II, L.P. · Bull Co-Invest L.P. · Bull Holdco L.P. Director · 10% owner	Sale	$289.75M 19,102,952 shares sold	Unavailable Indirect holding	▾
2026-05-13	GTCR CO-INVEST XI LP · GTCR FUND XI/A LP · GTCR FUND XI/C LP · GTCR INVESTMENT XI LLC · GTCR PARTNERS XI/A&C LP Director · 10% owner	Sale	$193.17M 12,735,301 shares sold	Unavailable Indirect holding	▾
2026-03-06	WARBURG PINCUS & CO. · WARBURG PINCUS LLC · Warburg Pincus Private Equity XI-C, L.P. · Warburg Pincus XI-C, LLC · Warburg Pincus (Cayman) XI, L.P. · Warburg Pincus (Bermuda) Private Equity GP Ltd. · Warburg Pincus Partners GP LLC · Warburg Pincus Partners II (Cayman), L.P. Director · 10% owner	Sale	$229.05M 15,000,000 shares sold	Unavailable Indirect holding	▾
2026-03-06	WARBURG PINCUS & CO. · Warburg Pincus Private Equity XI, L.P. · WP XI Partners, L.P. · Warburg Pincus Private Equity XI-B, L.P. · Warburg Pincus XI, L.P. · WP Global LLC · Warburg Pincus XI Partners, L.P. · Warburg Pincus Partners II, L.P. · Bull Co-Invest L.P. · Bull Holdco L.P. Director · 10% owner	Sale	$229.05M 15,000,000 shares sold	Unavailable Indirect holding	▾
2026-03-06	GTCR CO-INVEST XI LP · GTCR FUND XI/A LP · GTCR FUND XI/C LP · GTCR INVESTMENT XI LLC · GTCR PARTNERS XI/A&C LP Director · 10% owner	Sale	$152.70M 10,000,000 shares sold	Unavailable Indirect holding	▾

Showing 9 / 9 record groups in 2026. The complete set is available through the API.

Sotera Health Co · SHC

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 9 of 9 purchase / sale groups and 30 of 37 other groups; the totals and the monthly series cover the whole window.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.