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Round Rock Advisors’s OSI Systems OSIS Stock Holding History

Round Rock Advisors’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
-1,243
Closed -$330K – 336
2026
Q1 		$330K Buy
1,243
+30
+2% +$8.29K 0.05% 252
2025
Q4 		$309K Buy
1,213
+354
+41% +$92.5K 0.05% 261
2025
Q3 		$214K Buy
+859
New +$196K 0.03% 304

Other funds holding OSIS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JT
Jupiter Topco New York $245B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS AM
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

Round Rock Advisors's OSIS Position: Q2 2026 in Review

Round Rock Advisors sold out of OSI Systems (OSIS) in Q2 2026, closing a stake of 1,243 shares — an estimated $330K sold.

Round Rock Advisors first reported a position in OSIS in Q3 2025 and held it in 3 quarters. The position peaked at $330K in Q1 2026. 364 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

  • Round Rock Advisors reported no remaining OSI Systems position as of Q2 2026 after selling out during the quarter.
  • Round Rock Advisors sold 1,243 OSI Systems shares in Q2 2026, an estimated $330K.
  • Round Rock Advisors first reported a position in OSI Systems in Q3 2025 and held it in 3 quarters.
  • Round Rock Advisors's OSI Systems position peaked at $330K in Q1 2026.
  • 364 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on Round Rock Advisors's 13F filing for Q2 2026, filed 12 Aug 2026.