Who Owns OSI Systems, Inc. (OSIS)?Hedge Fund & Institutional Holders

$269.87-5.63 (-2.04%)TechnologyNASDAQ

Institutional Holders

as of Q4 2025

Total Institutional Value

$InfinityT

% of Float Held

9.329115017757204e+268%

QoQ Change in Holders

+9 / -4

Price History

OSIS — Biggest New Institutional Buyers This Quarter

Fund	Action	Shares Added	Value Added
FMR LLC	Increased	+567K	+$419.7B
Mawer Investment Management Ltd.	New Position	+804K	+$204.0B
BANK OF AMERICA CORP /DE/	Increased	+11K	+$69.9B
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	New Position	+191K	+$48.8B
PRINCIPAL FINANCIAL GROUP INC	New Position	+96K	+$24.4B
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	+89K	+$23.5B
Invesco Ltd.	Increased	+74K	+$20.9B
Asset Management One Co., Ltd.	New Position	+77K	+$20.3B
NORDEA INVESTMENT MANAGEMENT AB	New Position	+48K	+$12.6B
WELLINGTON MANAGEMENT GROUP LLP	New Position	+50K	+$12.0B
AXIOM INVESTORS LLC /DE	Increased	+35K	+$9.0B
JPMORGAN CHASE & CO	Increased	+35K	+$8.5B
GHP Investment Advisors, Inc.	New Position	+33K	+$8.4B
Robeco Schweiz AG	New Position	+31K	+$7.8B
Universal- Beteiligungs- und Servicegesellschaft mbH	New Position	+28K	+$7.2B

OSIS — Institutions Reducing or Closing Positions

Fund	Action	Shares Sold	Value Sold
JANUS HENDERSON GROUP PLC	Decreased	-248K	-$58.3B
MACQUARIE GROUP LTD	Closed Position	-209K	-$52.1B
TWO SIGMA INVESTMENTS, LP	Closed Position	-59K	-$14.7B
BROWN ADVISORY INC	Decreased	-59K	-$14.4B
Clearbridge Investments, LLC	Decreased	-59K	-$14.0B
MILLENNIUM MANAGEMENT LLC	Decreased	-52K	-$13.0B
GOLDMAN SACHS GROUP INC	Decreased	-43K	-$11.8B
Nuveen, LLC	Decreased	-37K	-$10.5B
ROYAL BANK OF CANADA	Decreased	-34K	-$9.0B
JANE STREET GROUP, LLC	Decreased	-10K	-$8.5B
PRIMECAP MANAGEMENT CO/CA/	Decreased	-39K	-$8.1B
Edgestream Partners, L.P.	Decreased	-24K	-$6.9B
MARSHALL WACE, LLP	Closed Position	-27K	-$6.8B
Trexquant Investment LP	Closed Position	-26K	-$6.5B
Boston Partners	Decreased	-21K	-$5.5B

Top Institutional Holders(Q4 2025)

#	Fund	Shares	Value	% of Portfolio	Type
1	FMR LLC	1,449,486	$369.0B	0.02%	Share
2	Mawer Investment Management Ltd.	803,602	$204.0B	1.14%	Share
3	JANUS HENDERSON GROUP PLC	679,092	$173.0B	0.08%	Share
4	DIMENSIONAL FUND ADVISORS LP	386,486	$98.0B	0.02%	Share
5	Hood River Capital Management LLC	379,374	$96.8B	1.06%	Share
6	Neuberger Berman Group LLC	290,319	$74.0B	0.06%	Share
7	Invesco Ltd.	270,452	$69.0B	0.01%	Share
8	PRIMECAP MANAGEMENT CO/CA/	267,710	$68.3B	0.05%	Share
9	Clark Capital Management Group, Inc.	266,114	$67.0B	0.41%	Share
10	DRIEHAUS CAPITAL MANAGEMENT LLC	235,768	$60.1B	0.41%	Share
11	SYSTEMATIC FINANCIAL MANAGEMENT LP	227,246	$58.0B	1.37%	Share
12	UBS Group AG	212,879	$54.3B	0.01%	Share
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	202,033	$51.0B	0.01%	Share
14	NEUMEIER POMA INVESTMENT COUNSEL LLC	195,795	$49.9B	4.13%	Share
15	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	191,326	$48.8B	0.14%	Share
16	Clearbridge Investments, LLC	185,146	$47.0B	0.04%	Share
17	LOOMIS SAYLES & CO L P	169,370	$43.0B	0.05%	Share
18	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	163,104	$41.0B	0.06%	Share
19	BROWN ADVISORY INC	149,075	$38.0B	0.05%	Share
20	NORTHERN TRUST CORP	148,518	$37.0B	0.00%	Share
21	Invesco Ltd.	141,600	$36.1B	0.01%	Share
22	FMR LLC	140,170	$35.0B	0.00%	Share
23	JPMORGAN CHASE & CO	134,126	$34.0B	0.00%	Share
24	BANK OF AMERICA CORP /DE/	109,484	$27.0B	0.00%	Share
25	PRINCIPAL FINANCIAL GROUP INC	94,868	$24.2B	0.01%	Share
26	Asset Management One Co., Ltd.	76,560	$20.3B	0.06%	Share
27	BANK OF AMERICA CORP /DE/	80,092	$20.0B	0.00%	Share
28	Boston Partners	75,175	$19.0B	0.02%	Share
29	AXIOM INVESTORS LLC /DE	66,808	$17.0B	0.15%	Share
30	GOLDMAN SACHS GROUP INC	70,482	$17.0B	0.00%	Share
31	JANUS HENDERSON GROUP PLC	67,372	$17.0B	0.01%	Share
32	FMR LLC	66,290	$16.0B	0.00%	Share
33	BANK OF AMERICA CORP /DE/	64,791	$16.0B	0.00%	Share
34	UBS Group AG	62,712	$16.0B	0.00%	Share
35	PUBLIC SECTOR PENSION INVESTMENT BOARD	55,242	$14.0B	0.05%	Share
36	FIRST TRUST ADVISORS LP	57,306	$14.0B	0.01%	Share
37	Nuveen, LLC	56,891	$14.0B	0.00%	Share
38	Prospect Capital Advisors, LLC	50,000	$12.8B	6.58%	Share
39	Nicholas Investment Partners, LP	48,619	$12.4B	0.90%	Share
40	WELLINGTON MANAGEMENT GROUP LLP	47,978	$12.0B	0.00%	Share
41	MILLENNIUM MANAGEMENT LLC	43,745	$11.0B	0.00%	Share
42	RHUMBLINE ADVISERS	43,272	$11.0B	0.01%	Share
43	PDT Partners, LLC	42,104	$10.7B	0.70%	Share
44	UBS Group AG	40,505	$10.3B	0.00%	Share
45	AMERIPRISE FINANCIAL INC	40,041	$10.0B	0.00%	Share
46	AMERICAN CENTURY COMPANIES INC	40,330	$10.0B	0.01%	Share
47	NORDEA INVESTMENT MANAGEMENT AB	35,934	$9.4B	0.01%	Share
48	GOLDMAN SACHS GROUP INC	36,760	$9.0B	0.00%	Share
49	LOOMIS SAYLES & CO L P	38,076	$9.0B	0.01%	Share
50	GHP Investment Advisors, Inc.	32,873	$8.4B	0.34%	Share

OSIS Institutional Ownership History

Quarter	Holders	Total Value	Change
Q4 2025	356	$2.5T	+101
Q3 2025	255	$2.1T	-30
Q2 2025	285	$1.9T	-19
Q1 2025	304	$2.5T	+24
Q4 2024	280	$4.9T	+59
Q3 2024	221	$119.8T	+7
Q2 2024	214	$119.6T	+20
Q1 2024	194	$363.1T	—

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As of Q4 2025, 50 institutional investors hold OSIS (OSI Systems, Inc.). The largest holder is FMR LLC with $369.0B in shares. This quarter, 9 institutions opened new positions and 4 closed their positions.

Frequently Asked Questions

How many hedge funds own OSIS?

As of Q4 2025, 50 institutional investors report holding OSIS (OSI Systems, Inc.) in their 13F filings.

Who is the largest institutional holder of OSIS?

The largest institutional holder of OSIS is FMR LLC with $369.0B in shares.

Is institutional ownership of OSIS increasing or decreasing?

This quarter, 9 institutions opened new positions in OSIS and 4 closed their positions.