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CSS LLC’s OSI Systems OSIS Stock Holding History

CSS LLC’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
Q1 		$1.19M Buy
+4,500
New +$1.24M 0.06% 273
2025
Q3 		– Sell
-10,296
Closed -$2.32M – 1133
2025
Q2 		$2.32M Buy
10,296
+820
+9% +$175K 0.11% 157
2025
Q1 		$1.84M Buy
9,476
+1,876
+25% +$357K 0.1% 155
2024
Q4 		$1.27M Buy
7,600
+5,800
+322% +$919K 0.06% 278
2024
Q3 		$273K Buy
+1,800
New +$259K 0.01% 620
2019
Q4 		– Sell
-1,200
Closed -$122K – 695
2019
Q3 		$122K Sell
1,200
-200
-14% -$21.6K 0.01% 486
2019
Q2 		$158K Buy
+1,400
New +$141K 0.01% 488
2019
Q1 		– Sell
-1,028
Closed -$75K – 566
2018
Q4 		$75K Hold
1,028
– – 0.01% 473
2018
Q3 		$78K Hold
1,028
– – ﹤0.01% 492
2018
Q2 		$79K Hold
1,028
– – ﹤0.01% 490
2018
Q1 		$67K Hold
1,028
– – ﹤0.01% 482
2017
Q4 		$66K Buy
+1,028
New +$86.4K ﹤0.01% 561
2015
Q4 		– Sell
-4,028
Closed -$310K – 733
2015
Q3 		$310K Sell
4,028
-6,800
-63% -$491K 0.02% 481
2015
Q2 		$767K Sell
10,828
-3,000
-22% -$217K 0.04% 354
2015
Q1 		$1.03M Sell
13,828
-1,300
-9% -$93.2K 0.05% 291
2014
Q4 		$1.07M Sell
15,128
-7,000
-32% -$477K 0.05% 289
2014
Q3 		$1.41M Sell
22,128
-9,938
-31% -$660K 0.07% 264
2014
Q2 		$2.14M Buy
32,066
+1,705
+6% +$102K 0.09% 194
2014
Q1 		$1.82M Hold
30,361
– – 0.09% 180
2013
Q4 		$1.61M Buy
+30,361
New +$2.08M 0.08% 213

Other funds holding OSIS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Mawer Investment Management
Mawer Investment Management Calgary, Alberta, Canada $15.4B AUM 10.9% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

CSS LLC's OSIS Position: Q1 2026 in Review

CSS LLC opened a new position in OSI Systems (OSIS) in Q1 2026: 4,500 shares worth $1.19M. The stake represents 0.06% of the portfolio and ranks #273 among its holdings. This is a return to the name: CSS LLC previously reported a position in OSIS as recently as Q2 2025.

CSS LLC first reported a position in OSIS in Q4 2013 and has held it in 20 quarters since. The position peaked at $2.32M in Q2 2025. 368 funds tracked by Wall St. Rank hold OSIS as of Q1 2026.

  • CSS LLC held 4,500 shares of OSI Systems worth $1.19M as of Q1 2026.
  • OSI Systems was a new CSS LLC position in Q1 2026.
  • OSI Systems made up 0.06% of CSS LLC's portfolio in Q1 2026, its #273 holding.
  • CSS LLC first reported a position in OSI Systems in Q4 2013 and has held it in 20 quarters since.
  • CSS LLC's OSI Systems position peaked at $2.32M in Q2 2025.
  • 368 funds tracked by Wall St. Rank held OSI Systems as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.