OSIS OSI Systems, Inc.

NASDAQ
$194.91

OSI Systems, Inc. (OSIS) Institutional Ownership

What the institutions did with OSIS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.

Managers compared
3
filed both this quarter and last
Managers holding
3
+0 on the quarter
Buyers
1
0 opened new
Sellers
2
0 sold out entirely
Buyer share
33.3%
of managers who traded it
Breadth
-33.3
net buyers, as a share of those trading

Only 3 managers reported a position this quarter, so the percentages above describe a very small sample.

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Largest holders

Manager Shares % of reported
ARGENT CAPITAL MANAGEMENT LLC 9.2K 99.6%
Versant Capital Management, Inc 26 0.3%
MassMutual Private Wealth & Trust, FSB 7 0.1%

Largest changes

Manager Action Previous Current Change
ARGENT CAPITAL MANAGEMENT LLC Reduced 10.6K 9.2K -1.4K
MassMutual Private Wealth & Trust, FSB Increased 1 7 +6
Versant Capital Management, Inc Reduced 28 26 -2

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.