Sotera Health Co. planned insider sales
In the twelve months since 9 October 2025 insiders at Sotera Health Co. filed 7 Form 144 notices of planned sales, 18.2 million shares worth $306.5 million at the time of filing, from 6 sellers. The latest, filed 17 August 2026: Michael B. Petras, Jr. (chairman, ceo), 1.1 million shares worth $21.6 million, planned for around 17 August 2026 through J.P. Morgan Securities LLC.
| Filed | Seller | Relationship | Shares | Value | Planned sale | Broker | How acquired | Filing |
|---|---|---|---|---|---|---|---|---|
| 17 August 2026 | Michael B. Petras, Jr. | Chairman, CEO | 1,144,515 | $21.6 million | 17 August 2026 | J.P. Morgan Securities LLC | Executive Compensation; Transfer | Form 144 |
| 7 August 2026 | Rutz Michael P | Officer | 150,000 | $2.8 million | 7 August 2026 | Charles Schwab Corp. | Private Placement; RSU Vesting | Form 144 |
| 8 December 2025 | Michael B. Petras, Jr. | Chairman, CEO | 750,000 | $12.6 million | 8 December 2025 | J.P. Morgan Securities LLC | Compensation; Pre-IPO shares | Form 144 |
| 4 December 2025 | Gtcr Fund Xi/C Lp | Owner | 1,295,747 | $21.2 million | 3 December 2025 | Goldman Sachs & Co. LLC | Pre-IPO Organization | Form 144 |
| 3 December 2025 | Gtcr Co-Invest Xi Lp | Owner | 41,219 | $673,106 | 3 December 2025 | Goldman Sachs & Co. LLC | Pre-IPO Organization | Form 144 |
| 3 December 2025 | Gtcr Fund Xi/A Lp | Owner | 5,143,033 | $84.0 million | 3 December 2025 | Goldman Sachs & Co. LLC | Pre-IPO Organization | Form 144 |
| 3 December 2025 | Warburg Pincus Llc | Affiliate | 9,720,000 | $163.7 million | 3 December 2025 | Goldman Sachs & Co. LLC | Private Placement - From Issuer | Form 144 |
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
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Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.Source
Form 144 filings on EDGAR for Sotera Health Co.: the company's filing index, each notice read from its own XML.
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