Manatuck Hill Partners’s OSI Systems OSIS Stock Holding History

Manatuck Hill Partners’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	$7.28M	Buy	33,300 +18,000	+118%	+$4.41M	2.41%	8
2026 Q1	$4.06M	Buy	15,300 +1,000	+7%	+$276K	1.1%	27
2025 Q4	$3.65M	Hold	14,300	–	–	1.28%	30
2025 Q3	$3.56M	Hold	14,300	–	–	1.18%	30
2025 Q2	$3.22M	Sell	14,300 -3,600	-20%	-$768K	1.21%	28
2025 Q1	$3.48M	Sell	17,900 -2,700	-13%	-$514K	1.6%	21
2024 Q4	$3.45M	Hold	20,600	–	–	1.41%	24
2024 Q3	$3.13M	Hold	20,600	–	–	1.15%	27
2024 Q2	$2.83M	Sell	20,600 -9,400	-31%	-$1.3M	1.18%	20
2024 Q1	$4.28M	Sell	30,000 -18,300	-38%	-$2.4M	1.88%	13
2023 Q4	$6.23M	Buy	48,300 +15,300	+46%	+$1.82M	2.63%	11
2023 Q3	$3.9M	Buy	33,000 +6,000	+22%	+$723K	1.76%	18
2023 Q2	$3.18M	Buy	+27,000	New	+$3.1M	1.51%	23

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

Manatuck Hill Partners's OSIS Position: Q2 2026 in Review

Manatuck Hill Partners increased its OSI Systems (OSIS) stake by 118% in Q2 2026, buying an estimated $4.41M and bringing the position to 33,300 shares worth $7.28M. The position accounts for 2.41% of the portfolio, ranked #8.

Manatuck Hill Partners first reported a position in OSIS in Q2 2023 and has held it in 13 quarters since. 364 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

Manatuck Hill Partners held 33,300 shares of OSI Systems worth $7.28M as of Q2 2026.
Manatuck Hill Partners bought 18,000 OSI Systems shares in Q2 2026, an estimated $4.41M.
OSI Systems made up 2.41% of Manatuck Hill Partners's portfolio in Q2 2026, its #8 holding.
Manatuck Hill Partners first reported a position in OSI Systems in Q2 2023 and has held it in 13 quarters since.
364 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on Manatuck Hill Partners's 13F filing for Q2 2026, filed 14 Aug 2026.