🕵️ Sotera Health Co ($SHC)
SEC insider & ownership activity, last 12 months · CIK 1822479 · every row links its SEC filing
Over the last 12 months insiders sold $2.6B with no open-market buying against it. Warburg Pincus & Co. sold $1.9B (Nov–May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 4 sellers, $2.6B (18 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Warburg Pincus & Co. | 0 | – | 8 | $1.9B | May 13, 2026 |
| GTCR Investment XI LLC | 0 | – | 4 | $639.5M | May 13, 2026 |
| Michael B. Petras, JR. | 0 | – | 5 | $33.5M | Aug 17, 2026 |
| Michael P. Rutz | 0 | – | 1 | $2.8M | Aug 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Warburg Pincus Private Equity XI, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus XI Partners, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus Private Equity XI-B, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus Private Equity XI-C, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Bull Co-Invest L.p. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus XI, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| WP Global LLC | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus Partners II, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus Partners GP LLC. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus (CAYMAN) XI, L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus XI-C, LLC. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus Partners II (CAYMAN), L.P. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus (BERMUDA) Private Equity GP Ltd. | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Warburg Pincus LLC | 25.7% | 13G | Nov 12, 2025 | filing ↗ | |
| Sessa Capital IM, L.P. | 9.5% | 13G | Aug 14, 2026 | filing ↗ | |
| John Petry | 9.5% | 13G | Aug 14, 2026 | filing ↗ | |
| Darsana Capital Partners LP | 8.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Darsana Capital Partners GP LLC | 8.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Darsana Master Fund LP | 8.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Darsana Capital GP LLC | 8.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Anand Desai | 8.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Sculptor Capital LP | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Sculptor Capital II LP | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Sculptor Capital Holding Corp | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Sculptor Capital Holding II LLC | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Sculptor Capital Management, Inc. | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Sculptor Master Fund, Ltd. | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| BlackRock, Inc. | 8.4% | 13G | Jul 30, 2026 | filing ↗ | |
| Sessa Capital GP, LLC | 7.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Sessa Capital IM GP, LLC | 7.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Sessa Capital (MASTER), L.P. | 5.6% | 13G | Feb 17, 2026 | filing ↗ | |
| Sachem HEAD Capital Management LP | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Uncas GP LLC | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Scott D. Ferguson | 5.5% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Michael B. Petras, JR. | $21.6M | Aug 17, 2026 | filing ↗ |
| Michael P. Rutz | $2.8M | Aug 7, 2026 | filing ↗ |
| Michael B. Petras, JR. | $12.6M | Dec 8, 2025 | filing ↗ |
| GTCR Fund XI/C LP | $21.2M | Dec 3, 2025 | filing ↗ |
| GTCR Co-Invest XI LP | $673K | Dec 3, 2025 | filing ↗ |
| GTCR Fund XI/A LP | $84.0M | Dec 3, 2025 | filing ↗ |
| Warburg Pincus LLC | $163.7M | Dec 3, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Aug 11, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 21, 2026 | filing ↗ |
| Material agreement (1.01) | May 20, 2026 | filing ↗ |
| New financial obligation (2.03) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Agreement terminated (1.02) | May 11, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 12, 2026 | filing ↗ |
| Other events (8.01) | Mar 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 4, 2026 | filing ↗ |
| Earnings (2.02) | Feb 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 4, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 17, 2025 | filing ↗ |
| New financial obligation (2.03) | Sep 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 17, 2025 | filing ↗ |