Director sold ~$188M of SHC shares in the open market

Past results only. Not a forecast.

Record ID

0001193125-25-277915

Filed / recorded

Nov 12, 2025, 10:06 PM UTC

Added to OQRO

Oct 6, 2026, 9:10 PM UTC

Parser

form4-xml-v2

Data quality

Verified: identifiers matched exactly

Issuer

Sotera Health Co

Issuer CIK

1822479

Ticker

SHC

Reporting person

GTCR INVESTMENT XI LLC

Relationship

Director, 10% owner

Security

Common Stock, $0.01 par value per share ("Common Stock")

Table

Non-derivative (Table I)

Transaction date

Nov 10, 2025

Transaction code

S

Shares / units

12,000,000

Price per share

$15.65

Acquired / disposed

Disposed (D)

Shares owned after

29,215,301

Ownership form

Indirect — See Footnote

Amendment

No

1. On November 10, 2025, the GTCR XI Funds (as defined below) sold a total of 12,000,000 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").
2. Following the Offering, consists of (i) 23,187,541 shares of Common Stock held directly by GTCR Fund XI/A LP, a Delaware limited partnership ("Fund XI/A"), (ii) 5,841,921 shares of Common Stock held directly by GTCR Fund XI/C LP, a Delaware limited partnership ("Fund XI/C"), and (iii) 185,839 shares of Common Stock held directly by GTCR Co-Invest XI LP, a Delaware limited partnership ("Co-Invest XI", and together with Fund XI/A and Fund XI/C, the "GTCR XI Funds").
3. GTCR Partners XI/A&C LP ("Partners XI/A&C") is the general partner of each of Fund XI/A and Fund XI/C. GTCR Investment XI LLC ("Investment XI" and together with the GTCR XI Funds and Partners XI/A&C, the "GTCR Entities"), is the general partner of Co-Invest XI and Partners XI/A&C. Investment XI is managed by a board of managers (the "GTCR Board of Managers") consisting of Mark M. Anderson, Aaron D. Cohen, Sean L. Cunningham, David A Donnini, Constantine S. Mihas and Collin E. Roche, and no single person has voting or dispositive authority over the shares of Common Stock.
4. Each of GTCR Partners XI/A&C, GTCR Investment XI and the GTCR Board of Managers may be deemed to share beneficial ownership of the shares of Common Stock held of record by the GTCR XI Funds, and each of the individual members of the GTCR Board of Managers disclaims beneficial ownership of the shares of Common Stock held of record by the GTCR XI Funds except to the extent of his pecuniary interest therein.
5. Each of the reporting persons is a director-by-deputization solely for purposes of Section 16 of the Exchange Act. Information with respect to each of the GTCR Entities is given solely by such GTCR Entity, and no GTCR Entity has responsibility for the accuracy or completeness of information supplied by another GTCR Entity.