← United States · Coverage record
US · SEC FORM 4
Sotera Health Co
SHC · Nasdaq · CIK 0001822479 · Healthcare · Diagnostics & Research
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
19 Form 4 transaction lines observed in the same window
6 sales · 13 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 11 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot.—
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 14,748,380
- Previous report
- 12,272,393
- Avg daily volume
- 2,184,596
- Days to cover
- 6.8
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
No qualifying code P equity purchase is present in the local Form 4 history.
Form 4 evidence
50 transaction lines in the latest 365-day window; 177 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-17 | Petras Michael B. Jr. | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 294,515 | USD 18.50 | USD 5,448,528 | SEC filing ↗ |
| 2026-08-17 | Petras Michael B. Jr. | Sale (S) | Common Stock | 850,000 | USD 18.50 | USD 15,725,000 | SEC filing ↗ |
| 2026-08-07 | Rutz Michael P | Sale (S) | Common Stock, $0.01 par value per share | 150,000 | USD 18.84 | USD 2,826,000 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-17 | Petras Michael B. Jr. | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 294,515 | USD 18.50 | USD 5,448,528 | SEC filing ↗ |
| 2026-08-17 | Petras Michael B. Jr. | Sale (S) | Common Stock | 850,000 | USD 18.50 | USD 15,725,000 | SEC filing ↗ |
| 2026-08-07 | Rutz Michael P | Sale (S) | Common Stock, $0.01 par value per share | 150,000 | USD 18.84 | USD 2,826,000 | SEC filing ↗ |
| 2026-08-05 | Lyons Jonathan M. | Tax withholding (F) | Common Stock, $0.01 par value per share | 11,316 | USD 17.98 | USD 203,462 | SEC filing ↗ |
| 2026-05-26 | SHADER ALTON | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 375,939 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-26 | SHADER ALTON | Award / grant (A) | Common Stock | 203,634 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Wheadon David E. | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Simon, Christopher | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | PETRELLA VINCENT K | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Neary James | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Kyle Richard G | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Krause Kenneth D. | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Klee Ann R. | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Flynn Karen | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Chen Ruoxi | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | CUNNINGHAM SEAN LAURENCE | Award / grant (A) | Common Stock, $0.01 par value per share ("Common Stock") | 14,970 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-13 | WARBURG PINCUS & CO.; WARBURG PINCUS LLC; Warburg Pincus (Bermuda) Private Equity GP Ltd.; Warburg Pincus (Cayman) XI, L.P.; Warburg Pincus Partners GP LLC; Warburg Pincus Partners II (Cayman), L.P.; Warburg Pincus Private Equity XI-C, L.P.; Warburg Pincus XI-C, LLC | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 19,102,952 | USD 15.17 | USD 289,791,782 | SEC filing ↗ |
| 2026-05-13 | GTCR CO-INVEST XI LP; GTCR FUND XI/A LP; GTCR FUND XI/C LP; GTCR INVESTMENT XI LLC; GTCR PARTNERS XI/A&C LP | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 12,735,301 | USD 15.17 | USD 193,194,516 | SEC filing ↗ |
| 2026-05-13 | Bull Co-Invest L.P.; Bull Holdco L.P.; WARBURG PINCUS & CO.; WP Global LLC; WP XI Partners, L.P.; Warburg Pincus Partners II, L.P.; Warburg Pincus Private Equity XI, L.P.; Warburg Pincus Private Equity XI-B, L.P.; Warburg Pincus XI Partners, L.P.; Warburg Pincus XI, L.P. | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 19,102,952 | USD 15.17 | USD 289,791,782 | SEC filing ↗ |
| 2026-03-06 | WARBURG PINCUS & CO.; WARBURG PINCUS LLC; Warburg Pincus (Bermuda) Private Equity GP Ltd.; Warburg Pincus (Cayman) XI, L.P.; Warburg Pincus Partners GP LLC; Warburg Pincus Partners II (Cayman), L.P.; Warburg Pincus Private Equity XI-C, L.P.; Warburg Pincus XI-C, LLC | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 15,000,000 | USD 15.27 | USD 229,050,000 | SEC filing ↗ |
| 2026-03-06 | GTCR CO-INVEST XI LP; GTCR FUND XI/A LP; GTCR FUND XI/C LP; GTCR INVESTMENT XI LLC; GTCR PARTNERS XI/A&C LP | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 10,000,000 | USD 15.27 | USD 152,700,000 | SEC filing ↗ |
| 2026-03-06 | Bull Co-Invest L.P.; Bull Holdco L.P.; WARBURG PINCUS & CO.; WP Global LLC; WP XI Partners, L.P.; Warburg Pincus Partners II, L.P.; Warburg Pincus Private Equity XI, L.P.; Warburg Pincus Private Equity XI-B, L.P.; Warburg Pincus XI Partners, L.P.; Warburg Pincus XI, L.P. | Sale (S) | Common Stock, $0.01 par value per share ("Common Stock") | 15,000,000 | USD 15.27 | USD 229,050,000 | SEC filing ↗ |
| 2026-03-02 | Rutz Michael P | Option exercise / conversion (M) | Common Stock | 14,573 | USD — | USD — | SEC filing ↗ |
| 2026-03-02 | Rutz Michael P | Tax withholding (F) | Common Stock, $0.01 par value per share ("Common Stock") | 3,729 | USD 15.91 | USD 59,328 | SEC filing ↗ |
| 2026-03-02 | Rutz Michael P | Tax withholding (F) | Common Stock | 21,992 | USD 15.91 | USD 349,893 | SEC filing ↗ |
| 2026-03-02 | Rutz Michael P | Award / grant (A) | Common Stock | 45,223 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-02 | Petras Michael B. Jr. | Option exercise / conversion (M) | Common Stock | 89,686 | USD — | USD — | SEC filing ↗ |
| 2026-03-02 | Petras Michael B. Jr. | Tax withholding (F) | Common Stock, $0.01 par value per share ("Common Stock") | 31,339 | USD 15.91 | USD 498,603 | SEC filing ↗ |
| 2026-03-02 | Petras Michael B. Jr. | Tax withholding (F) | Common Stock | 158,958 | USD 15.91 | USD 2,529,022 | SEC filing ↗ |
| 2026-03-02 | Petras Michael B. Jr. | Award / grant (A) | Common Stock | 240,248 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | SHC |
| CIK | 0001822479 |
| Sector | Healthcare |
| Industry | Diagnostics & Research Yahoo Finance |
| SEC SIC | 8090 Services-Misc Health & Allied Services, NEC |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 177 transaction lines from 2020-11-20 to 2026-08-17 0 P purchase lines · 37 S sale lines · 140 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.