State of Wisconsin Investment Board’s OSI Systems OSIS Stock Holding History

State of Wisconsin Investment Board’s Portfolio OSIS Stock Details OSIS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$3M	Buy	13,702 +377	+3%	+$92.4K	0.01%	1328
2026 Q1	$3.54M	Sell	13,325 -466	-3%	-$129K	0.01%	1132
2025 Q4	$3.52M	Buy	13,791 +1,066	+8%	+$278K	0.01%	1148
2025 Q3	$3.17M	Buy	12,725 +44	+0.3%	+$10K	0.01%	1153
2025 Q2	$2.85M	Sell	12,681 -1,544	-11%	-$330K	0.01%	1140
2025 Q1	$2.76M	Buy	14,225 +144	+1%	+$27.4K	0.01%	1129
2024 Q4	$2.36M	Buy	14,081 +4,508	+47%	+$715K	0.01%	1220
2024 Q3	$1.45M	Buy	9,573 +4,800	+101%	+$690K	﹤0.01%	1436
2024 Q2	$656K	Buy	4,773 +52	+1%	+$7.17K	﹤0.01%	1704
2024 Q1	$674K	Sell	4,721 -233	-5%	-$30.6K	﹤0.01%	1588
2023 Q4	$639K	Sell	4,954 -224	-4%	-$26.7K	﹤0.01%	1581
2023 Q3	$611K	Buy	+5,178	New	+$624K	﹤0.01%	1632
2023 Q2	–	Sell	-2,016	Closed	-$206K	–	2483
2023 Q1	$206K	Buy	+2,016	New	+$187K	﹤0.01%	2252
2022 Q4	–	Sell	-3,017	Closed	-$217K	–	2609
2022 Q3	$217K	Sell	3,017 -1,124	-27%	-$98.5K	﹤0.01%	2368
2022 Q2	$354K	Buy	+4,141	New	+$340K	﹤0.01%	2248

Other funds holding OSIS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Jupiter Topco New York $245B AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

CCM

Channing Capital Management Chicago, Illinois $4.34B AUM 37.08% 1-Year Est. Return

State of Wisconsin Investment Board's OSIS Position: Q2 2026 in Review

State of Wisconsin Investment Board increased its OSI Systems (OSIS) stake by 2.8% in Q2 2026, buying an estimated $92.4K and bringing the position to 13,702 shares worth $3M. The position accounts for 0.01% of the portfolio, ranked #1328.

State of Wisconsin Investment Board first reported a position in OSIS in Q2 2022 and has held it in 15 quarters since. The position peaked at $3.54M in Q1 2026. 361 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

State of Wisconsin Investment Board held 13,702 shares of OSI Systems worth $3M as of Q2 2026.
State of Wisconsin Investment Board bought 377 OSI Systems shares in Q2 2026, an estimated $92.4K.
OSI Systems made up 0.01% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #1328 holding.
State of Wisconsin Investment Board first reported a position in OSI Systems in Q2 2022 and has held it in 15 quarters since.
State of Wisconsin Investment Board's OSI Systems position peaked at $3.54M in Q1 2026.
361 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.