California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s A10 Networks ATEN Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio ATEN Stock Details ATEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.11M Buy
91,451
+24,489
+37% +$479K ﹤0.01% 1488
2025
Q4 		$1.18M Sell
66,962
-13,137
-16% -$233K ﹤0.01% 1715
2025
Q3 		$1.45M Buy
80,099
+4
+0% +$72 ﹤0.01% 1588
2025
Q2 		$1.55M Sell
80,095
-588
-0.7% -$10K ﹤0.01% 1505
2025
Q1 		$1.32M Buy
80,683
+11,877
+17% +$228K ﹤0.01% 1543
2024
Q4 		$1.27M Sell
68,806
-1,335
-2% -$21.8K ﹤0.01% 1651
2024
Q3 		$1.01M Buy
70,141
+993
+1% +$13.4K ﹤0.01% 1774
2024
Q2 		$958K Sell
69,148
-1,316
-2% -$18.8K ﹤0.01% 1781
2024
Q1 		$965K Sell
70,464
-3,860
-5% -$51.9K ﹤0.01% 1813
2023
Q4 		$979K Sell
74,324
-3,410
-4% -$41.3K ﹤0.01% 1843
2023
Q3 		$1.17M Sell
77,734
-7,714
-9% -$114K ﹤0.01% 1697
2023
Q2 		$1.25M Buy
85,448
+6,866
+9% +$99.4K ﹤0.01% 1779
2023
Q1 		$1.22M Sell
78,582
-3,245
-4% -$49.5K ﹤0.01% 1776
2022
Q4 		$1.36M Buy
81,827
+334
+0.4% +$5.72K ﹤0.01% 1717
2022
Q3 		$1.08M Sell
81,493
-2,553
-3% -$36.3K ﹤0.01% 1839
2022
Q2 		$1.21M Buy
84,046
+8,824
+12% +$128K ﹤0.01% 1816
2022
Q1 		$1.05M Sell
75,222
-6,070
-7% -$85.3K ﹤0.01% 2009
2021
Q4 		$1.35M Buy
81,292
+1,044
+1% +$15.8K ﹤0.01% 1975
2021
Q3 		$1.08M Sell
80,248
-2,618
-3% -$34K ﹤0.01% 2105
2021
Q2 		$933K Sell
82,866
-7,487
-8% -$72.5K ﹤0.01% 2251
2021
Q1 		$868K Sell
90,353
-272
-0.3% -$2.66K ﹤0.01% 2229
2020
Q4 		$894K Sell
90,625
-2,401
-3% -$18.9K ﹤0.01% 2106
2020
Q3 		$593K Hold
93,026
– – ﹤0.01% 2176
2020
Q2 		$634K Buy
93,026
+16,984
+22% +$114K ﹤0.01% 2124
2020
Q1 		$472K Buy
76,042
+876
+1% +$5.6K ﹤0.01% 2091
2019
Q4 		$516K Sell
75,166
-12,948
-15% -$87.1K ﹤0.01% 2335
2019
Q3 		$612K Buy
88,114
+2,099
+2% +$15.1K ﹤0.01% 2203
2019
Q2 		$587K Buy
86,015
+4,417
+5% +$28.9K ﹤0.01% 2272
2019
Q1 		$579K Hold
81,598
– – ﹤0.01% 2246
2018
Q4 		$509K Buy
81,598
+4,600
+6% +$27.8K ﹤0.01% 2290
2018
Q3 		$468K Buy
76,998
+506
+0.7% +$3.42K ﹤0.01% 2483
2018
Q2 		$477K Sell
76,492
-867
-1% -$5.42K ﹤0.01% 2471
2018
Q1 		$450K Sell
77,359
-1,530
-2% -$10K ﹤0.01% 2423
2017
Q4 		$609K Sell
78,889
-356
-0.4% -$2.72K ﹤0.01% 2295
2017
Q3 		$599K Sell
79,245
-7,585
-9% -$51.6K ﹤0.01% 2321
2017
Q2 		$733K Hold
86,830
– – ﹤0.01% 2251
2017
Q1 		$794K Sell
86,830
-3,900
-4% -$34.5K ﹤0.01% 2210
2016
Q4 		$754K Sell
90,730
-2,600
-3% -$22.4K ﹤0.01% 2278
2016
Q3 		$998K Buy
93,330
+900
+1% +$7.87K ﹤0.01% 2082
2016
Q2 		$598K Buy
92,430
+20,577
+29% +$130K ﹤0.01% 2352
2016
Q1 		$425K Buy
71,853
+9,000
+14% +$53.6K ﹤0.01% 2524
2015
Q4 		$412K Buy
62,853
+1,123
+2% +$7.78K ﹤0.01% 2550
2015
Q3 		$370K Sell
61,730
-200
-0.3% -$1.26K ﹤0.01% 2624
2015
Q2 		$399K Buy
61,930
+38,497
+164% +$215K ﹤0.01% 2704
2015
Q1 		$101K Hold
23,433
– – ﹤0.01% 2982
2014
Q4 		$102K Buy
23,433
+100
+0.4% +$447 ﹤0.01% 3007
2014
Q3 		$213K Buy
23,333
+133
+0.6% +$1.52K ﹤0.01% 2887
2014
Q2 		$309K Buy
+23,200
New +$292K ﹤0.01% 2780

Other funds holding ATEN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
PCM
Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

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

California State Teachers Retirement System (CalSTRS) increased its A10 Networks (ATEN) stake by 37% in Q1 2026, buying an estimated $479K and bringing the position to 91,451 shares worth $2.11M. The position accounts for ﹤0.01% of the portfolio, ranked #1488.

California State Teachers Retirement System (CalSTRS) first reported a position in ATEN in Q2 2014 and has held it in 48 quarters since. 264 funds tracked by Wall St. Rank hold ATEN as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 91,451 shares of A10 Networks worth $2.11M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) bought 24,489 A10 Networks shares in Q1 2026, an estimated $479K.
  • A10 Networks made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #1488 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in A10 Networks in Q2 2014 and has held it in 48 quarters since.
  • 264 funds tracked by Wall St. Rank held A10 Networks as of Q1 2026.

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