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Sotera Health Co

SHC
Exchange
Nasdaq
Industry
Services-Misc Health & Allied Services, NEC
SEC CIK
0001822479

In the last 90 days, Sotera Health Co insiders filed 0 open-market purchases and 1 sale; 320 institutions reported holding it in 13F filings for Q2 2026, worth $5.21B in total; Greenlight Capital is the only superinvestor holding it.

Holders of 5% or more of SHC

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Sotera Health Co, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of SHC
HolderLatest formStakeChangeFirst filedLatest filingFiling
Sessa Capital IM, L.P.13G/A9.50%27.1M shares–Aug 14, 20261 filingAug 14, 2026SEC
Darsana Capital Partners LP13G/A8.80%25.0M shares–Sep 13, 20242 filingsNov 14, 2025SEC
Sculptor Capital LP13G/A8.41%24.0M shares+1.02 ppfrom 7.39%Sep 11, 20253 filingsAug 14, 2026SEC
BlackRock, Inc.13G/A8.40%23.8M shares+2.20 ppfrom 6.20%Oct 17, 20253 filingsJul 30, 2026SEC
Sessa Capital (Master), L.P.13G7.23%20.6M sharesNewFeb 17, 20261 filingFeb 17, 2026SEC
Vanguard Capital Management LLC13G5.12%14.6M sharesNewOct 30, 20261 filingOct 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

32 Schedule 13D and 13G filings on Sotera Health Co, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on SHC
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 30, 202612:36 PM ETVanguard Capital Management LLC13G5.12%14.6M sharesNewSep 30, 2026SEC
Oct 9, 20264:01 PM ETSachem Head Capital Management LPand 3 others13G/A0.00%0 shares−5.46 ppfrom 5.46%Below 5%Oct 9, 2026SEC
Aug 14, 20265:00 PM ETSculptor Capital LPand 5 others13G/A8.41%24.0M shares+1.02 ppfrom 7.39%Jun 30, 2026SEC
Aug 14, 20264:06 PM ETSessa Capital IM, L.P.and 1 other13G/A9.50%27.1M shares–Jun 30, 2026SEC
Jul 30, 202611:18 AM ETBlackRock, Inc.13G/A8.40%23.8M shares+2.20 ppfrom 6.20%Jun 30, 2026SEC
May 15, 20264:57 PM ETWarburg Pincus & Co.and 15 others13G/A0.00%0 shares−11.20 ppfrom 11.20%Below 5%Mar 6, 2026SEC
May 15, 20264:40 PM ETGTCR Investment XI LLCand 4 others13G/A0.00%0 shares−11.20 ppfrom 11.20%Below 5%May 13, 2026SEC
May 15, 20264:31 PM ETSachem Head Capital Management LPand 3 others13G5.46%15.6M sharesNewMay 11, 2026SEC
Mar 27, 20261:15 PM ETVanguard Group Inc13G/A0.00%0 shares−6.76 ppfrom 6.76%Below 5%Mar 13, 2026SEC
Mar 10, 20267:47 PM ETWarburg Pincus & Co.and 15 others13G/A11.20%31.8M shares−14.50 ppfrom 25.70%Mar 6, 2026SEC
Mar 10, 20266:24 PM ETGTCR Investment XI LLCand 4 others13G/A11.20%31.8M shares−8.80 ppfrom 20.00%Mar 6, 2026SEC
Feb 17, 20265:20 PM ETSessa Capital (Master), L.P.and 5 others13G7.23%20.6M sharesNewDec 31, 2025SEC
Feb 13, 20265:44 PM ETSculptor Capital LPand 5 others13G/A7.39%21.0M shares+2.20 ppfrom 5.19%Dec 31, 2025SEC
Jan 30, 20262:42 PM ETVanguard Group Inc13G/A6.76%19.2M shares–Dec 31, 2025SEC
Jan 21, 202612:30 PM ETBlackRock, Inc.13G/A6.20%17.7M shares+1.00 ppfrom 5.20%Dec 31, 2025SEC
Dec 19, 20254:30 PM ETGTCR Investment XI LLCand 4 others13G/A20.00%56.8M shares−5.70 ppfrom 25.70%Dec 3, 2025SEC
Nov 14, 20256:47 PM ETDarsana Capital Partners LPand 4 others13G/A8.80%25.0M shares–Sep 30, 2025SEC
Nov 12, 20254:47 PM ETGTCR Investment XI LLCand 4 others13G/A25.70%73.0M shares−10.60 ppfrom 36.30%Nov 10, 2025SEC
Nov 12, 20254:25 PM ETWarburg Pincus & Co.and 15 others13G/A25.70%73.0M shares−10.60 ppfrom 36.30%Nov 10, 2025SEC
Oct 17, 20256:24 PM ETBlackRock, Inc.13G5.20%14.9M sharesNewSep 30, 2025SEC
Sep 11, 20254:01 PM ETSculptor Capital LPand 5 others13G5.19%14.8M sharesNewSep 4, 2025SEC
Sep 10, 20254:37 PM ETWarburg Pincus & Co.and 15 others13G/A36.30%103.0M shares–Sep 5, 2025SEC
Sep 10, 20254:15 PM ETGTCR Investment XI LLCand 4 others13G/A36.30%103.0M shares–Sep 5, 2025SEC
Nov 14, 2024GTCR Investment XI LLC13G/AOld format–––SEC
Nov 14, 2024Warburg Pincus & Co.13G/AOld format–––SEC
Nov 12, 2024Vanguard Group Inc13G/AOld format–––SEC
Nov 4, 2024Vanguard Group Inc13G/AOld format–––SEC
Sep 13, 2024Darsana Capital Partners LP13GOld format–New–SEC
Feb 14, 2022Warburg Pincus & Co.13G/AOld format–––SEC
Feb 11, 2022GTCR Investment XI LLC13G/AOld format–––SEC
Feb 12, 2021Warburg Pincus & Co.13GOld format–New–SEC
Feb 12, 2021GTCR Investment XI LLC13GOld format–New–SEC

Form 144: proposed insider sales

8 notices from officers, directors and other affiliates planning to sell Sotera Health Co shares, newest first.

Form 144 notices for SHC
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Aug 17, 20267:04 PM ETMichael B. Petras, Jr.Chairman, CEO1.14M$21.6MAug 17, 2026J.P. Morgan Securities LLCSEC
Aug 7, 20269:27 AM ETRutz Michael POfficer150.0K$2.84MAug 7, 2026Charles Schwab Corp.SEC
Dec 8, 20255:11 PM ETMichael B. Petras, Jr.Chairman, CEO750.0K$12.6MDec 8, 2025J.P. Morgan Securities LLCSEC
Dec 4, 20256:01 AM ETGTCR Fund XI/C LPOwner1.30M$21.2MDec 3, 2025Goldman Sachs & Co. LLCSEC
Dec 3, 20259:59 PM ETGTCR Co-Invest XI LPOwner41.2K$673.1KDec 3, 2025Goldman Sachs & Co. LLCSEC
Dec 3, 20259:59 PM ETGTCR Fund XI/A LPOwner5.14M$84.0MDec 3, 2025Goldman Sachs & Co. LLCSEC
Dec 3, 20258:53 PM ETWarburg Pincus LLCAffiliate9.72M$163.7MDec 3, 2025Goldman Sachs & Co. LLCSEC
Aug 22, 202510:46 AM ETRutz Michael POfficer126.6K$2.04MAug 22, 2025Charles Schwab & Co.SEC