STERIS Ownership | Who Owns STERIS?

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STERIS Ownership Summary

STERIS is owned by 52.41% institutional investors, 0.30% insiders, and 47.29% retail investors. Vanguard group is the largest institutional shareholder, holding 12.41% 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	52.41%	0.30%	47.29%
Sector	Healthcare Stocks	42.54%	10.83%	46.63%
Industry	Medical Device Stocks	37.80%	10.13%	52.07%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	12.21M	12.41%	$3.02B
Blackrock	9.19M	9.30%	$2.02B
Blackrock funding, inc. /de	8.76M	8.90%	$2.17B
Massachusetts financial services co /ma/	4.85M	4.92%	$1.20B
State street	4.35M	4.43%	$1.08B
Morgan stanley	4.19M	4.26%	$1.04B
Generation investment management llp	2.98M	3.03%	$738.59M
Geode capital management	2.51M	2.55%	$618.37M
Orbis allan gray	2.13M	2.16%	$526.88M
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
Generation investment management llp	2.98M	4.89%	$738.59M
Foresight group ltd liability partnership	113.19K	4.18%	$28.01M
Coho partners	106.86K	3.39%	$26.44M
Stone run capital	28.33K	2.76%	$7.01M
Speece thorson capital group	55.59K	2.72%	$13.35M
Locust wood capital advisers	439.73K	2.72%	$108.81M
Knowledge leaders capital	5.03K	2.62%	$1.11M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.16M	0.03%	1.16M
Boston partners	642.54K	0.16%	642.54K
Thrivent financial for lutherans	553.83K	0.27%	393.97K
Morgan stanley	4.19M	0.06%	322.30K
Assenagon asset management	330.91K	0.11%	249.39K

Top Sellers

Holder	Shares	% Assets	Change
Impax asset management group	-	-	-951.76K
Wcm investment management	1.17M	0.60%	-927.12K
Blackrock	9.19M	0.05%	-639.34K
Point72 asset management	-	-	-423.33K
Sands capital management	-	-	-409.85K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.16M	0.03%	1.16M	$238.84M
Boston partners	642.54K	0.16%	642.54K	$158.98M
Axa investment managers	167.18K	0.11%	167.18K	$41.37M
Polar capital	99.50K	0.12%	99.50K	$24.62M
Addenda capital	18.83K	0.14%	18.83K	$4.66M

Sold Out

Holder	Change
Redwood wealth management group	-1.00
Nvwm	-2.00
Bok financial private wealth	-2.00
Sugar maple asset management	-2.00
Total investment management	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
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%
Sep 30, 2024	744	-0.80%	92,535,168	-2.70%	93	1.01%	317	-10.20%	296	9.63%

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	3.13%	-74.89K
Vanguard Institutional 500 Index Trust	2.79M	2.84%	19.87K
Vanguard 500 Index Investor	2.43M	2.47%	-356.08K
Vanguard Mid Cap Index Institutional	2.19M	2.23%	23.64K
MS INVF Global Brands A USD	1.25M	1.27%	-24.52K
Fidelity 500 Index	1.25M	1.26%	533.00
SPDR® S&P 500 ETF	1.22M	1.24%	-25.88K
Morgan Stanley Glbl Franchise	1.21M	1.23%	-5.49K
MS INVF Global Brands A	1.21M	1.23%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
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	$386.64K
Nov 18, 2025	Tamaro Renato	V.P. & Corporate Treasurer	Sell	$54.70K
Nov 11, 2025	Zangerle John Adam	Sr. VP, Gen Counsel, and Sec.	Sell	$3.98M

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	5
2025 Q3	-	4
2025 Q2	-	7
2024 Q4	-	1
2024 Q3	-	7

STE Ownership FAQ

Who Owns STERIS?

STERIS shareholders are primarily institutional investors at 52.41%, followed by 0.30% insiders and 47.29% retail investors. The average institutional ownership in STERIS's industry, Medical Device Stocks, is 37.80%, which STERIS exceeds.

Who owns the most shares of STERIS?

STERIS’s largest shareholders are Vanguard group (12.21M shares, 12.41%), Blackrock (9.19M shares, 9.30%), and Blackrock funding, inc. /de (8.76M shares, 8.90%). Together, they hold 30.61% 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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