Mawer Investment Management
OSIS icon

Mawer Investment Management’s OSI Systems OSIS Stock Holding History

Mawer Investment Management’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 		– Sell
-662,634
Closed -$176M – 151
2026
Q1 		$176M Sell
662,634
-140,968
-18% -$39M 1.14% 25
2025
Q4 		$205M Sell
803,602
-52,781
-6% -$13.8M 1.15% 25
2025
Q3 		$213M Buy
856,383
+343,727
+67% +$78.5M 1.11% 25
2025
Q2 		$115M Buy
512,656
+51,634
+11% +$11M 0.58% 44
2025
Q1 		$89.6M Buy
461,022
+83,724
+22% +$15.9M 0.43% 50
2024
Q4 		$63.2M Buy
+377,298
New +$59.8M 0.29% 61

Other funds holding OSIS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
CCM
Channing Capital Management Chicago, Illinois $4.34B AUM 37.08% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
New York State Common Retirement Fund
New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Asset Management One
Asset Management One Tokyo, Japan $39B AUM 37.51% 1-Year Est. Return

Mawer Investment Management's OSIS Position: Q2 2026 in Review

Mawer Investment Management sold out of OSI Systems (OSIS) in Q2 2026, closing a stake of 662,634 shares — an estimated $176M sold.

Mawer Investment Management first reported a position in OSIS in Q4 2024 and held it in 6 quarters. The position peaked at $213M in Q3 2025. 153 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

  • Mawer Investment Management reported no remaining OSI Systems position as of Q2 2026 after selling out during the quarter.
  • Mawer Investment Management sold 662,634 OSI Systems shares in Q2 2026, an estimated $176M.
  • Mawer Investment Management first reported a position in OSI Systems in Q4 2024 and held it in 6 quarters.
  • Mawer Investment Management's OSI Systems position peaked at $213M in Q3 2025.
  • 153 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on Mawer Investment Management's 13F filing for Q2 2026, filed 7 Aug 2026.