Evidence in favour
- Participation spans 17 named insiders rather than one filing source.
Company insider dossier
Sotera Health Co insider intelligence
SHC filings assessed for conviction, transaction quality, insider breadth, clustering, freshness, and price confirmation.
16/100
Concentrated distribution
67/100 confidence- Exchange
- NASDAQ
- Sector
- Healthcare
- Industry
- Diagnostics & Research
- Latest evidence
- 17 Aug 2026
Investment committee read
Concentrated distribution
Priced common-share disposals are concentrated enough to warrant review, but they are not treated as a standalone bearish forecast.
Review exposure and filing contextDecision risks
- Qualifying disposal events outnumber acquisitions, although disposals receive a lower directional weight.
- The latest qualifying filing is more than 30 days old.
Price confirmation map
Weekly price with common-share events
Acquisitions and disposals are aligned to the nearest completed weekly bar.
Mar 2025Sep 2026
Weekly closeCommon-share acquisitionCommon-share disposal
Market confirmation
Price and trend context
- Latest close
- 18.37 USD
- One-week move
- -2.8%
- Four-week move
- -2.8%
- Fair-value gap
- +25.9%
- Trend signal
- Active
- Relative strength
- -0.7
Directional balance
Controlled event mix
0.0%acquisition
- Acquisition events
- 0
- Disposal events
- 7
- Net value
- -$507.2M
Cadence
Twelve-week filing pressure
Volume shows attention. Controlled events determine direction.
029 Jun
006 Jul
013 Jul
020 Jul
027 Jul
203 Aug
010 Aug
217 Aug
024 Aug
031 Aug
007 Sep
014 Sep
Named participants
Insider conviction by person
CHEN, RUOXIDirector500 events
CUNNINGHAM, SEAN LAURENCEDirector500 events
FLYNN, KARENDirector500 events
KLEE, ANN R.Director500 events
KRAUSE, KENNETH D.Director500 events
KYLE, RICHARD GDirector500 events
NEARY, JAMESDirector500 events
PETRELLA, VINCENT KDirector500 events
SHADER, ALTONDirector, Chief Executive Officer500 events
SIMON,, CHRISTOPHERDirector500 events
WHEADON, DAVID E.Director500 events
DIMITRIEF, ALEXANDERFormer SVP, GC and Sec.281 events
Evidence quality
Security and transaction context
Role architecture
Who is participating
Transaction evidence
Auditable SHC filing ledger
Showing 1 to 20 of 20.
PETRAS, MICHAEL B. JR.Director, Executive Chairman
DisposalCommon equity
850000 sharesCommon Stock
$15.7MDirectional evidence
PETRAS, MICHAEL B. JR.Director, Executive Chairman
DisposalCommon equity
294515 sharesCommon Stock, $0.01 par value per share ("Common Stock")
$5.4MDirectional evidence
RUTZ, MICHAEL PPresident of Sterigenics
DisposalCommon equity
150000 sharesCommon Stock, $0.01 par value per share
$2.8MDirectional evidence
LYONS, JONATHAN M.Sr. Vice President, CFO
DisposalCommon equity
11316 sharesCommon Stock, $0.01 par value per share
$203.5KDirectional evidence
SHADER, ALTONDirector, Chief Executive Officer
AcquisitionOther securities
101817 sharesShare Appreciation Units
Not reportedContext evidence
SHADER, ALTONDirector, Chief Executive Officer
AcquisitionCommon equity
203634 sharesCommon Stock
Not reportedContext evidence
SHADER, ALTONDirector, Chief Executive Officer
AcquisitionCommon equity
375939 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
CHEN, RUOXIDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
CUNNINGHAM, SEAN LAURENCEDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
FLYNN, KARENDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
KLEE, ANN R.Director
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
KRAUSE, KENNETH D.Director
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
KYLE, RICHARD GDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
NEARY, JAMESDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
PETRELLA, VINCENT KDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
SIMON,, CHRISTOPHERDirector
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
WHEADON, DAVID E.Director
AcquisitionCommon equity
14970 sharesCommon Stock, $0.01 par value per share ("Common Stock")
Not reportedContext evidence
WARBURG, PINCUS & CO.Director, 10% Owner
DisposalCommon equity
19102952 sharesCommon Stock, $0.01 par value per share ("Common Stock")
$289.8MDirectional evidence
GTCR, INVESTMENT XI LLCDirector, 10% Owner
DisposalCommon equity
12735301 sharesCommon Stock, $0.01 par value per share ("Common Stock")
$193.2MDirectional evidence
DIMITRIEF, ALEXANDERFormer SVP, GC and Sec.
DisposalCommon equity
7941 sharesCommon Stock, $0.01 par value per share ("Common Stock")
$113.9KDirectional evidence
Reading the dossier
Direction and confidence are separate
Conviction
The 0 to 100 score classifies deduplicated priced common-share evidence. Fifty is balanced or non-directional.
Confidence
Confidence rises with controlled event depth, named-insider breadth, fresh evidence, normalized values, and a longer observation span.
Disposals
Selling is not treated as the mirror image of buying. It carries less directional weight because taxes, diversification, compensation, and planned transactions can all create sales.
Price confirmation
The market chart tests whether the filing thesis is being confirmed or rejected by price, fair-value position, relative strength, and the current trend state.
Independent market research for education. This classification is not investment advice, a recommendation, a forecast, or an execution instruction.