STERIS Ownership | Who Owns STERIS?

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STERIS Ownership Summary

STERIS is owned by 50.51% institutional investors, 0.31% insiders, and 49.19% retail investors. Vanguard group is the largest institutional shareholder, holding 12.50% of STE shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.17% of its assets in STERIS shares.

STE Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	STERIS	50.51%	0.31%	49.19%
Sector	Healthcare Stocks	232.01%	10.74%	-142.75%
Industry	Medical Device Stocks	37.54%	10.61%	51.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	12.29M	12.50%	$3.11B
Blackrock	9.19M	9.30%	$2.02B
Blackrock funding, inc. /de	9.04M	9.20%	$2.29B
State street	4.35M	4.43%	$1.08B
Massachusetts financial services co /ma/	4.22M	4.29%	$1.07B
Morgan stanley	3.84M	3.91%	$973.47M
Geode capital management	2.52M	2.57%	$637.26M
Orbis allan gray	2.13M	2.16%	$526.88M
Generation investment management llp	2.09M	2.12%	$529.47M
Select equity group	1.98M	2.01%	$489.14M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Diker management	258.28K	51.61%	$63.91M
Caden capital partners, lp	124.73K	12.51%	$30.86M
Kabouter management	8.44K	8.01%	$1.83M
Foresight group ltd liability partnership	113.19K	4.18%	$28.01M
M.d. sass	205.94K	4.11%	$52.21M
Generation investment management llp	2.09M	3.67%	$529.47M
Coho partners	106.86K	3.39%	$26.44M
Speece thorson capital group	52.06K	2.86%	$13.20M
Stone run capital	28.33K	2.76%	$7.01M
Locust wood capital advisers	446.40K	2.73%	$113.17M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.26M	0.03%	1.26M
Boston partners	642.54K	0.16%	642.54K
Blackrock funding, inc. /de	9.04M	0.04%	282.10K
Alliancebernstein	418.36K	0.03%	211.11K
M.d. sass	205.94K	4.11%	205.94K

Top Sellers

Holder	Shares	% Assets	Change
Wcm investment management	-	-	-1.17M
Impax asset management group	-	-	-951.76K
Generation investment management llp	2.09M	3.67%	-896.46K
Blackrock	9.19M	0.05%	-639.34K
Massachusetts financial services co /ma/	4.22M	0.34%	-627.82K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.26M	0.03%	1.26M	$320.30M
Boston partners	642.54K	0.16%	642.54K	$158.98M
M.d. sass	205.94K	4.11%	205.94K	$52.21M
Axa investment managers	167.18K	0.11%	167.18K	$41.37M
Polar capital	99.50K	0.12%	99.50K	$24.62M

Sold Out

Holder	Change
Caitong asset management	-1.00
Redwood wealth management group	-1.00
Avalon trust	-2.00
Breakwater investment management	-2.00
Bok financial private wealth	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	565	-33.37%	49,648,323	-45.79%	50	0.58%	297	-31.57%	177	-36.10%
Sep 30, 2025	533	-36.55%	51,572,418	-43.84%	52	0.60%	271	-40.18%	175	-32.43%
Jun 30, 2025	832	7.49%	91,694,296	0.41%	93	1.09%	449	15.13%	256	-7.58%
Mar 31, 2025	764	0.53%	90,957,069	-0.26%	92	1.08%	384	11.30%	275	-9.24%
Dec 31, 2024	386	-48.67%	26,932,232	-70.92%	27	0.31%	159	-50.00%	161	-46.69%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	3.12M	3.17%	-18.21K
Vanguard Total Stock Mkt Idx Inv	3.09M	3.15%	6.65K
Vanguard Institutional 500 Index Trust	2.79M	2.84%	19.87K
Vanguard 500 Index Investor	2.50M	2.55%	15.39K
Vanguard Mid Cap Index Institutional	2.13M	2.17%	-11.09K
Morgan Stanley Glbl Franchise	1.38M	1.41%	172.37K
iShares Core S&P 500 ETF	1.25M	1.27%	223.33K
MS INVF Global Brands A USD	1.25M	1.27%	-24.52K
Fidelity 500 Index	1.24M	1.27%	-2.65K
MS INVF Global Brands A	1.23M	1.25%	-49.68K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 05, 2026	FELDMANN CYNTHIA L	-	Sell	$734.88K
Nov 21, 2025	Madsen Julia	Sr. VP and GM, Life Sciences	Sell	$559.63K
Nov 18, 2025	Tamaro Renato	V.P. & Corporate Treasurer	Sell	$855.70K
Nov 18, 2025	Tamaro Renato	V.P. & Corporate Treasurer	Sell	$54.70K
Nov 18, 2025	Tamaro Renato	V.P. & Corporate Treasurer	Sell	$386.64K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	1
2025 Q4	-	6
2025 Q3	-	4
2025 Q2	-	7
2024 Q4	-	1

STE Ownership FAQ

Who Owns STERIS?

STERIS shareholders are primarily institutional investors at 50.51%, followed by 0.31% insiders and 49.18% retail investors. The average institutional ownership in STERIS's industry, Medical Device Stocks, is 37.54%, which STERIS exceeds.

Who owns the most shares of STERIS?

STERIS’s largest shareholders are Vanguard group (12.29M shares, 12.50%), Blackrock (9.19M shares, 9.30%), and Blackrock funding, inc. /de (9.04M shares, 9.20%). Together, they hold 31.00% of STERIS’s total shares outstanding.

Does Blackrock own STERIS?

Yes, BlackRock owns 9.30% of STERIS, totaling 9.19M shares as of Jun 2024. This represents 0.05% of BlackRock's total assets, with a market value of 2.02B$. In the last quarter, BlackRock decreased its holdings by -639K shares, a -6.51% change.

Who is STERIS’s biggest shareholder by percentage of total assets invested?

Diker management is STERIS’s biggest shareholder by percentage of total assets invested, with 51.61% of its assets in 258.28K STERIS shares, valued at 63.91M$.

Who is the top mutual fund holder of STERIS shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of STERIS shares, with 3.17% of its total shares outstanding invested in 3.12M STERIS shares.

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