Dmitry Balyasny’s OSI Systems OSIS Stock Holding History

Dmitry Balyasny’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	$1.22M	Buy	5,558 +1,493	+37%	+$366K	﹤0.01%	2105
2026 Q1	$1.08M	Buy	+4,065	New	+$1.12M	﹤0.01%	2048
2025 Q4	–	Sell	-2,651	Closed	-$661K	–	3437
2025 Q3	$661K	Sell	2,651 -3,814	-59%	-$871K	﹤0.01%	2271
2025 Q2	$1.45M	Sell	6,465 -98,771	-94%	-$21.1M	﹤0.01%	1891
2025 Q1	$20.5M	Buy	105,236 +97,336	+1,232%	+$18.5M	0.03%	586
2024 Q4	$1.32M	Buy	7,900 +4,356	+123%	+$691K	﹤0.01%	1836
2024 Q3	$538K	Buy	+3,544	New	+$510K	﹤0.01%	2226
2023 Q2	–	Sell	-17,395	Closed	-$1.78M	–	2649
2023 Q1	$1.78M	Buy	17,395 +10,250	+143%	+$949K	﹤0.01%	1504
2022 Q4	$568K	Buy	+7,145	New	+$582K	﹤0.01%	1822
2022 Q2	–	Sell	-2,540	Closed	-$216K	–	3059
2022 Q1	$216K	Sell	2,540 -1,198	-32%	-$101K	﹤0.01%	2003
2021 Q4	$348K	Buy	+3,738	New	+$351K	﹤0.01%	1709
2021 Q3	–	Sell	-9,703	Closed	-$986K	–	2301
2021 Q2	$986K	Sell	9,703 -1,843	-16%	-$179K	﹤0.01%	1289
2021 Q1	$1.11M	Sell	11,546 -1,364	-11%	-$129K	0.01%	1209
2020 Q4	$1.2M	Sell	12,910 -7,620	-37%	-$651K	0.01%	985
2020 Q3	$1.59M	Buy	+20,530	New	+$1.53M	0.01%	898
2020 Q1	–	Sell	-15,223	Closed	-$1.53M	–	1423
2019 Q4	$1.53M	Buy	15,223 +11,074	+267%	+$1.09M	0.01%	805
2019 Q3	$421K	Buy	+4,149	New	+$448K	﹤0.01%	972
2018 Q4	–	Sell	-3,543	Closed	-$270K	–	1651
2018 Q3	$270K	Buy	3,543 +243	+7%	+$18.9K	﹤0.01%	1527
2018 Q2	$255K	Sell	3,300 -759	-19%	-$53K	﹤0.01%	1571
2018 Q1	$265K	Sell	4,059 -19,089	-82%	-$1.24M	﹤0.01%	1658
2017 Q4	$1.49M	Buy	+23,148	New	+$1.95M	﹤0.01%	1232
2016 Q1	–	Sell	-2,529	Closed	-$224K	–	1455
2015 Q4	$224K	Buy	+2,529	New	+$221K	﹤0.01%	1068

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

Dmitry Balyasny's OSIS Position: Q2 2026 in Review

Dmitry Balyasny increased its OSI Systems (OSIS) stake by 37% in Q2 2026, buying an estimated $366K and bringing the position to 5,558 shares worth $1.22M. The position accounts for ﹤0.01% of the portfolio, ranked #2105.

Dmitry Balyasny first reported a position in OSIS in Q4 2015 and has held it in 22 quarters since. The position peaked at $20.5M in Q1 2025. 360 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

Dmitry Balyasny held 5,558 shares of OSI Systems worth $1.22M as of Q2 2026.
Dmitry Balyasny bought 1,493 OSI Systems shares in Q2 2026, an estimated $366K.
OSI Systems made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #2105 holding.
Dmitry Balyasny first reported a position in OSI Systems in Q4 2015 and has held it in 22 quarters since.
Dmitry Balyasny's OSI Systems position peaked at $20.5M in Q1 2025.
360 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.