California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Adaptive Biotechnologies ADPT Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio ADPT Stock Details ADPT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.99M Buy
143,658
+31,782
+28% +$506K ﹤0.01% 1516
2025
Q4 		$1.82M Buy
111,876
+13,548
+14% +$221K ﹤0.01% 1464
2025
Q3 		$1.47M Buy
98,328
+7
+0% +$85 ﹤0.01% 1584
2025
Q2 		$1.15M Buy
98,321
+933
+1% +$8.47K ﹤0.01% 1654
2025
Q1 		$724K Hold
97,388
– – ﹤0.01% 1876
2024
Q4 		$584K Buy
97,388
+88,996
+1,060% +$491K ﹤0.01% 2037
2024
Q3 		$43K Hold
8,392
– – ﹤0.01% 2440
2024
Q2 		$30.4K Sell
8,392
-94,078
-92% -$299K ﹤0.01% 2478
2024
Q1 		$329K Sell
102,470
-6,392
-6% -$24.7K ﹤0.01% 2330
2023
Q4 		$533K Sell
108,862
-5,454
-5% -$24.9K ﹤0.01% 2175
2023
Q3 		$623K Sell
114,316
-11,674
-9% -$77.2K ﹤0.01% 2065
2023
Q2 		$845K Sell
125,990
-3,406
-3% -$25.3K ﹤0.01% 2026
2023
Q1 		$1.14M Sell
129,396
-1,977
-2% -$17.4K ﹤0.01% 1808
2022
Q4 		$1M Buy
131,373
+1,676
+1% +$13K ﹤0.01% 1897
2022
Q3 		$923K Sell
129,697
-2,131
-2% -$20.1K ﹤0.01% 1947
2022
Q2 		$1.07M Buy
131,828
+6,882
+6% +$60.5K ﹤0.01% 1915
2022
Q1 		$1.73M Sell
124,946
-11,880
-9% -$187K ﹤0.01% 1719
2021
Q4 		$3.84M Sell
136,826
-32,567
-19% -$998K ﹤0.01% 1323
2021
Q3 		$5.76M Sell
169,393
-19,557
-10% -$707K 0.01% 1061
2021
Q2 		$7.72M Buy
188,950
+52,396
+38% +$2.04M 0.01% 950
2021
Q1 		$5.5M Sell
136,554
-830
-0.6% -$44.9K 0.01% 1104
2020
Q4 		$8.12M Buy
137,384
+2,934
+2% +$151K 0.01% 854
2020
Q3 		$6.54M Buy
134,450
+11,998
+10% +$504K 0.01% 841
2020
Q2 		$5.92M Buy
122,452
+9,833
+9% +$359K 0.01% 877
2020
Q1 		$3.13M Buy
112,619
+85,043
+308% +$2.37M 0.01% 1058
2019
Q4 		$825K Buy
27,576
+237
+0.9% +$6.81K ﹤0.01% 2086
2019
Q3 		$845K Buy
+27,339
New +$1.12M ﹤0.01% 2032

Other funds holding ADPT

Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $30.6B AUM 57.44% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s ADPT Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its Adaptive Biotechnologies (ADPT) stake by 28% in Q1 2026, buying an estimated $506K and bringing the position to 143,658 shares worth $1.99M. The position accounts for ﹤0.01% of the portfolio, ranked #1516.

California State Teachers Retirement System (CalSTRS) first reported a position in ADPT in Q3 2019 and has held it in 27 quarters since. The position peaked at $8.12M in Q4 2020. 295 funds tracked by Wall St. Rank hold ADPT as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 143,658 shares of Adaptive Biotechnologies worth $1.99M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) bought 31,782 Adaptive Biotechnologies shares in Q1 2026, an estimated $506K.
  • Adaptive Biotechnologies made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #1516 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Adaptive Biotechnologies in Q3 2019 and has held it in 27 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Adaptive Biotechnologies position peaked at $8.12M in Q4 2020.
  • 295 funds tracked by Wall St. Rank held Adaptive Biotechnologies as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.