39 insiders reported 177 Form 4 transactions for Sotera Health Co (SHC) over the past 18 months (most recent 2026-08-19). Recent activity: Petras Michael B. Jr. (Executive Chairman) Sell 294,515 shares, Petras Michael B. Jr. (Executive Chairman) Sell 850,000 shares, Rutz Michael P (President of Sterigenics) Sell 150,000 shares, Lyons Jonathan M. (Sr. Vice President, CFO) Sell 11,316 shares, Kyle Richard G (Director) Buy 14,970 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | Petras Michael B. Jr. | Executive Chairman | Sell | 294,515 | $5.4M |
| 2026-08-19 | Petras Michael B. Jr. | Executive Chairman | Sell | 850,000 | $15.7M |
| 2026-08-11 | Rutz Michael P | President of Sterigenics | Sell | 150,000 | $2.8M |
| 2026-08-07 | Lyons Jonathan M. | Sr. Vice President, CFO | Sell | 11,316 | $203,462 |
| 2026-05-27 | Kyle Richard G | Director | Buy | 14,970 | $0 |
| 2026-05-27 | CUNNINGHAM SEAN LAURENCE | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Klee Ann R. | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Wheadon David E. | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Chen Ruoxi | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Simon, Christopher | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Krause Kenneth D. | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Flynn Karen | Director | Buy | 14,970 | $0 |
| 2026-05-27 | SHADER ALTON | Chief Executive Officer | Buy | 375,939 | $0 |
| 2026-05-27 | PETRELLA VINCENT K | Director | Buy | 14,970 | $0 |
| 2026-05-27 | Neary James | Director | Buy | 14,970 | $0 |
| 2026-05-27 | SHADER ALTON | Chief Executive Officer | Buy | 203,634 | $0 |
| 2026-05-15 | GTCR FUND XI/A LP | Director | Sell | 12.7M | $193.2M |
| 2026-05-15 | GTCR FUND XI/C LP | Director | Sell | 12.7M | $193.2M |
| 2026-05-15 | Warburg Pincus Partners GP LLC | Director | Sell | 19.1M | $289.8M |
| 2026-05-15 | Warburg Pincus Partners II, L.P. | Director | Sell | 19.1M | $289.8M |
| 2026-05-15 | Warburg Pincus Partners II (Cayman), L.P. | Director | Sell | 19.1M | $289.8M |
| 2026-05-15 | GTCR INVESTMENT XI LLC | Director | Sell | 12.7M | $193.2M |
| 2026-05-15 | GTCR PARTNERS XI/A&C LP | Director | Sell | 12.7M | $193.2M |
| 2026-05-15 | Bull Co-Invest L.P. | Director | Sell | 19.1M | $289.8M |
| 2026-05-15 | Bull Holdco L.P. | Director | Sell | 19.1M | $289.8M |
Source: SEC Form 4 filings · as of 2026-08-19