California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s OSI Systems OSIS Stock Holding History

California State Teachers Retirement System (CalSTRS)’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 		$3.97M Sell
18,144
-526
-3% -$129K ﹤0.01% 1220
2026
Q1 		$4.96M Buy
18,670
+3,663
+24% +$1.01M 0.01% 1020
2025
Q4 		$3.83M Sell
15,007
-3
-0% -$784 ﹤0.01% 1067
2025
Q3 		$3.74M Sell
15,010
-785
-5% -$179K ﹤0.01% 1081
2025
Q2 		$3.55M Buy
15,795
+77
+0.5% +$16.4K ﹤0.01% 1064
2025
Q1 		$3.05M Buy
15,718
+991
+7% +$189K ﹤0.01% 1108
2024
Q4 		$2.47M Sell
14,727
-594
-4% -$94.2K ﹤0.01% 1290
2024
Q3 		$2.33M Sell
15,321
-490
-3% -$70.5K ﹤0.01% 1319
2024
Q2 		$2.17M Sell
15,811
-323
-2% -$44.5K ﹤0.01% 1324
2024
Q1 		$2.3M Sell
16,134
-733
-4% -$96.2K ﹤0.01% 1324
2023
Q4 		$2.18M Sell
16,867
-681
-4% -$81.1K ﹤0.01% 1387
2023
Q3 		$2.07M Sell
17,548
-1,818
-9% -$219K ﹤0.01% 1371
2023
Q2 		$2.28M Sell
19,366
-659
-3% -$75.6K ﹤0.01% 1414
2023
Q1 		$2.05M Sell
20,025
-350
-2% -$32.4K ﹤0.01% 1461
2022
Q4 		$1.62M Buy
20,375
+45
+0.2% +$3.66K ﹤0.01% 1605
2022
Q3 		$1.47M Sell
20,330
-1,037
-5% -$90.8K ﹤0.01% 1645
2022
Q2 		$1.83M Sell
21,367
-354
-2% -$29K ﹤0.01% 1551
2022
Q1 		$1.85M Sell
21,721
-1,897
-8% -$159K ﹤0.01% 1667
2021
Q4 		$2.2M Buy
23,618
+519
+2% +$48.7K ﹤0.01% 1679
2021
Q3 		$2.19M Sell
23,099
-292
-1% -$28.4K ﹤0.01% 1681
2021
Q2 		$2.38M Sell
23,391
-2,139
-8% -$208K ﹤0.01% 1681
2021
Q1 		$2.45M Hold
25,530
– – ﹤0.01% 1631
2020
Q4 		$2.38M Sell
25,530
-128
-0.5% -$10.9K ﹤0.01% 1537
2020
Q3 		$1.99M Hold
25,658
– – ﹤0.01% 1511
2020
Q2 		$1.92M Hold
25,658
– – ﹤0.01% 1501
2020
Q1 		$1.77M Sell
25,658
-127
-0.5% -$10.9K ﹤0.01% 1371
2019
Q4 		$2.6M Sell
25,785
-159
-0.6% -$15.7K ﹤0.01% 1411
2019
Q3 		$2.63M Buy
25,944
+309
+1% +$33.4K 0.01% 1364
2019
Q2 		$2.89M Sell
25,635
-118
-0.5% -$11.9K 0.01% 1327
2019
Q1 		$2.26M Sell
25,753
-551
-2% -$46.1K ﹤0.01% 1455
2018
Q4 		$1.93M Buy
26,304
+593
+2% +$42.8K ﹤0.01% 1486
2018
Q3 		$1.96M Sell
25,711
-9
-0% -$699 ﹤0.01% 1644
2018
Q2 		$1.99M Sell
25,720
-1,200
-4% -$83.8K ﹤0.01% 1619
2018
Q1 		$1.76M Sell
26,920
-943
-3% -$61.2K ﹤0.01% 1615
2017
Q4 		$1.79M Buy
27,863
+3
+0% +$252 ﹤0.01% 1640
2017
Q3 		$2.55M Sell
27,860
-2,999
-10% -$244K 0.01% 1408
2017
Q2 		$2.32M Sell
30,859
-3,667
-11% -$278K ﹤0.01% 1509
2017
Q1 		$2.52M Sell
34,526
-1,600
-4% -$119K 0.01% 1483
2016
Q4 		$2.75M Sell
36,126
-1,000
-3% -$72.1K 0.01% 1454
2016
Q3 		$2.43M Buy
37,126
+400
+1% +$25.2K 0.01% 1524
2016
Q2 		$2.13M Sell
36,726
-5,399
-13% -$297K ﹤0.01% 1578
2016
Q1 		$2.76M Buy
42,125
+5,415
+15% +$358K 0.01% 1407
2015
Q4 		$3.25M Buy
36,710
+630
+2% +$55.1K 0.01% 1220
2015
Q3 		$2.78M Sell
36,080
-100
-0.3% -$7.22K 0.01% 1312
2015
Q2 		$2.56M Sell
36,180
-391
-1% -$28.3K 0.01% 1474
2015
Q1 		$2.72M Sell
36,571
-600
-2% -$43K 0.01% 1391
2014
Q4 		$2.63M Buy
37,171
+357
+1% +$24.3K 0.01% 1433
2014
Q3 		$2.34M Buy
36,814
+409
+1% +$27.2K 0.01% 1454
2014
Q2 		$2.43M Buy
36,405
+100
+0.3% +$5.97K 0.01% 1464
2014
Q1 		$2.17M Buy
36,305
+200
+0.6% +$12K 0.01% 1489
2013
Q4 		$1.92M Buy
36,105
+300
+0.8% +$20.5K 0.01% 1552
2013
Q3 		$2.67M Buy
35,805
+1,063
+3% +$75.5K 0.01% 1278
2013
Q2 		$2.24M Buy
+34,742
New +$2.03M 0.01% 1312

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

California State Teachers Retirement System (CalSTRS)'s OSIS Position: Q2 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its OSI Systems (OSIS) stake by 2.8% in Q2 2026, selling an estimated $129K and leaving 18,144 shares worth $3.97M. The position accounts for ﹤0.01% of the portfolio, ranked #1220.

California State Teachers Retirement System (CalSTRS) first reported a position in OSIS in Q2 2013 and has held it in 53 quarters since. The position peaked at $4.96M in Q1 2026. 361 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

  • California State Teachers Retirement System (CalSTRS) held 18,144 shares of OSI Systems worth $3.97M as of Q2 2026.
  • California State Teachers Retirement System (CalSTRS) sold 526 OSI Systems shares in Q2 2026, an estimated $129K.
  • OSI Systems made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #1220 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in OSI Systems in Q2 2013 and has held it in 53 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s OSI Systems position peaked at $4.96M in Q1 2026.
  • 361 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2026, filed 24 Aug 2026.