Sotera Health (SHC)Director sold ~$229M

~$229M

Approx. value · 15M sh @ $15.27

19.1M

Holds after · shares reported

Traded

Mar 6, 2026

Filed

Mar 10, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 12, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
2. Feb 4, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On February 4, 2026, the Board of Directors (the “Board”) of Sotera Health Company (the “Company”) increased the size of the Board from eleven directors to twelve directors and appointed Richard G. Kyle as a Class III director of the Board, effective immediately.”
3. Feb 18, 2026Company filing · Form 8-K · Results, Executive changeChanged a top executive or board member, and reported its results“On February 18, 2026, Alex Dimitrief, Senior Vice President and General Counsel of the Company, provided notice to the Company that he will retire on March 31, 2026.”
4. Mar 6, 2026 · this disclosureInsider · 6 days before an 8-KDirector sold ~$229M of SHC shares in the open market

What came next

1. Mar 6, 2026Insider · 6 days before an 8-KDirector sold ~$153M of SHC shares in the open market
2. Mar 12, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On March 12, 2026, as a result of a reduction in the number of directors that certain stockholders are entitled to designate for election to the Board of Directors (the “Board”) of Sotera Health Company (the “Company”), Constantine S. Mihas notified the Board of his intention to resign as a Class I director, effective March 16, 2026.”
3. Apr 30, 2026Company filing · Form 8-K · Results, Executive changeChanged a top executive or board member, and reported its results“In accordance with the Company’s executive succession plans, on May 5, 2026, the Company announced a leadership transition pursuant to which, on May 1, 2026, the Board of Directors (the “Board”), at the recommendation of the Nominating and Corporate Governance Committee, appointed Alton Shader to serve as Chief Executive Officer of the Company (“CEO”) and a Class II director of the Board, effective as of May 26,…”
4. May 11, 2026Company filing · Form 8-K · Agreement ended, Other newsEnded an important agreement, and reported other company news
5. May 13, 2026Insider · 2 peopleInsiders: 2 sales (~$482.9M)
6. May 20, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Sotera Health

For Sotera Health, OQRO holds 3 insider filings (SEC Form 4 or Form 144) and 6 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its SHC page.

Other recent filings by Pincus & Co. Warburg, Director

• SEC Form 4 at Sotera Health (SHC)May 15, 2026
• SEC Form 4 at Sotera Health (SHC)Dec 6, 2025
• SEC Form 4 at Sotera Health (SHC)Nov 12, 2025
• SEC Form 4 at Sotera Health (SHC)Sep 10, 2025

The full history of Pincus & Co. Warburg, Director is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Sotera Health

• SEC Schedule 13GOct 9, 2026
• SEC Form 4Aug 19, 2026
• SEC Form 4Aug 19, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its SHC page.