Osi Systems Inc (OSIS) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

833,939Shares held by institutions

$221,002,174Value of institutional holdings

110.02%Institutional ownership %

-3.52%Shares Changed QoQ

337No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Osi Systems Inc (NASDAQ:OSIS) has 346 institutional investors that have filed 13F reports for the period ending December 2025.

These investors held 106.9% of outstanding shares in December 2025, down from 109.4% in September 2025.
Their total shares held in OSIS increased 2.19% quarter over quarter, and separately, investors owning Osi Systems increased 14.95% from a year ago.
Activity in OSIS broke down as 185 buyers, 110 sellers, and 51 unchanged among 346 total holders.
Combined, these investors held 18.67Mn shares in OSIS for December 2025, up by 399.76K shares quarter on quarter, and up 261.02K shares year over year.
As of December 31, 2025, BlackRock, Inc. held the largest stake in Osi Systems with 2.56Mn shares, accounting for 14.67% of total shares outstanding.
The biggest buyers of Osi Systems for the quarter ending December 2025 included FMR LLC (567.16K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (191.33K), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (188.97K), Swedbank AB (109.6K), DRIEHAUS CAPITAL MANAGEMENT LLC (88.71K).
Top sellers of OSIS stock for the quarter ending December 2025 included Bank Of America Corp /De/ (264.81K), Janus Henderson Group Plc (247.72K), Jpmorgan Chase & Co (95.54K), Clearbridge Investments, LLC (59.5K), BROWN ADVISORY INC (58.7K).
Osi Systems's 10 largest shareholders as of December 2025 include BlackRock, Inc. (2.56Mn), VANGUARD GROUP INC (2.11Mn), FMR LLC (1.66Mn), Mawer Investment Management Ltd. (803.6K), Janus Henderson Group Plc (752.57K), Capital International Investors (674.34K), State Street Corp (658.17K), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (498.25K), Invesco Ltd. (425.2K), GEODE CAPITAL MANAGEMENT, LLC (410.96K) per Business Quant data.

346 Institutional Holders

833,939 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	57,646	2.30%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-981	-0.05%	$0.00
UBS Group AG	31 Dec, 2025	-98	-0.03%	$0.00
Barclays Plc	31 Dec, 2025	-33,912	-51.95%	$0.00
FMR LLC	31 Dec, 2025	567,161	52.02%	$0.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	191,326	0.00%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	4,514	0.00%	$0.00
Mawer Investment Management Ltd.	31 Dec, 2025	-52,781	-6.16%	$0.00
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	31 Dec, 2025	1,622	1.00%	$0.00
World Investment Advisors	31 Dec, 2025	2,494	0.00%	$0.00
Janus Henderson Group Plc	31 Dec, 2025	-247,724	-24.77%	$0.00
Nuveen, LLC	31 Dec, 2025	-37,098	-34.92%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	1,282	189.09%	$0.00
Capital International Investors	31 Dec, 2025	0	0.00%	$0.00
Prospect Capital Advisors, LLC	31 Dec, 2025	-500	-0.95%	$0.00
State Street Corp	31 Dec, 2025	-7,718	-1.16%	$0.00
Intrinsic Edge Capital Management LLC	31 Dec, 2025	-29,227	-48.40%	$0.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	-52,251	-9.49%	$0.00
Universal- Beteiligungs- und Servicegesellschaft mbH	31 Dec, 2025	9,418	49.73%	$0.00
Invesco Ltd.	31 Dec, 2025	73,787	21.00%	$0.00

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