Steris Plc
A maker of sterilization and infection-prevention products and services, STERIS supplies hospitals, medical device makers, and pharmaceutical plants with sterilizers, cleaning chemistries, and contract sterilization. It was founded in 1985 in Mentor, Ohio, as Innovative Medical Technologies by microbiologist Raymond Kralovic, who invented a low-temperature liquid sterilization process for delicate instruments like endoscopes that couldn't survive steam. Renamed STERIS in 1987 — a nod to "sterile" — its brands include V-PRO sterilizers and VAPROX HC sterilant.
Granted 215.9K · Sold 535.5K
Granted 525.5K · Sold 435.8K
Granted 127.6K · Sold 61.3K
Granted 157.4K · Sold 65.7K
Granted 252.4K · Sold 186.7K
Granted 98.6K · Sold 48.8K
Granted 63.3K · Sold 19.2K
Granted 25.1K
Granted 30.4K · Sold 12.4K
Granted 32.3K · Sold 8.3K
Granted 40.0K · Sold 17.7K
Granted 25.9K · Sold 16.5K
Granted 58.1K · Sold 50.0K
Granted 22.3K · Sold 5.7K
Granted 17.0K
Granted 17.6K
Granted 56.2K · Sold 38.4K
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Granted 12.9K · Sold 4.7K
Granted 2.3K
Granted 7.9K
Granted 21.1K · Sold 12.9K
Granted 995 · Sold 473
Granted 500
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Steeves Richard MartinDirector · 21 transactions | — | 449.3Kas of Dec 2019 | 215.9K | — | 535.5K |
| Rosebrough Walter M JrPresident & CEO, Director · 55 transactions | — | 124.4Kas of Nov 2020 | 525.5K | — | 435.8K |
| Breeden Richard CDirector · 18 transactions | — | 93.4K | 127.6K | — | 61.3K |
| Carestio Daniel APresident and CEO, Director · 55 transactions | — | 63.6K | 157.4K | — | 65.7K |
| Tokich Michael JSr. Vice Pres., CFO · 56 transactions | — | 58.2Kas of Jun 2025 | 252.4K | — | 186.7K |
| Zangerle John AdamSr. VP, Gen Counsel, and Sec. · 51 transactions | — | 35.3K | 98.6K | — | 48.8K |
| Kosecoff Jacqueline BDirector · 16 transactions | — | 31.2Kas of May 2024 | 63.3K | — | 19.2K |
| Coward Adrian VincentSr. V P, Healthcare Spec Serv · 2 transactions | — | 25.1Kas of May 2019 | 25.1K | — | — |
| Bardwell KathleenSr.V. P. & C.C.O. · 10 transactions | — | 24.4Kas of Jun 2019 | 30.4K | — | 12.4K |
| Wilson Loyal WDirector · 4 transactions | — | 24.0Kas of Jun 2019 | 32.3K | — | 8.3K |
| Sohi MohsenDirector · 15 transactions | — | 22.4Kas of Aug 2025 | 40.0K | — | 17.7K |
| Feldmann Cynthia LDirector · 19 transactions | — | 21.1K | 25.9K | — | 16.5K |
| Majors Cary LSVP and President, Healthcare · 45 transactions | — | 17.6K | 58.1K | — | 50.0K |
| Wood Michael BDirector · 2 transactions | — | 16.6Kas of May 2019 | 22.3K | — | 5.7K |
| Khan Gulam AmjadSr. V.P., Procedural Solutions · 3 transactions | — | 14.7Kas of May 2019 | 17.0K | — | — |
| Fraser Mary ClareSVP & Chief HRO · 18 transactions | — | 13.7K | 17.6K | — | — |
| Burton Karen LSr. Vice Pres., CFO · 55 transactions | — | 13.2K | 56.2K | — | 38.4K |
| Madsen JuliaSr. VP and GM, Life Sciences · 54 transactions | — | 12.3K | 26.1K | — | 13.6K |
| Kohler Kenneth ESVP & GM, AST · 15 transactions | — | 11.3K | 5.6K | — | — |
| McGowan LindseyVP, Chf. Comp. & Quality Offc. · 4 transactions | — | 11.0K | 2.0K | — | — |
| Lewis David BDirector · 6 transactions | — | 8.2Kas of Jul 2021 | 12.9K | — | 4.7K |
| deZwaan MichielV.P., Human Resources & CHRO · 2 transactions | — | 8.2Kas of May 2019 | 2.3K | — | — |
| Xilas AndrewSVP and GM, Dental · 30 transactions | — | 6.3Kas of May 2024 | 7.9K | — | — |
| Tamaro RenatoV.P. & Corporate Treasurer · 50 transactions | — | 6.2K | 21.1K | — | 12.9K |
| Holland Christopher SDirector · 3 transactions | — | 582as of Aug 2024 | 995 | — | 473 |
| Shah Nirav RDirector · 2 transactions | — | 292as of Aug 2021 | 500 | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -1.53M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.