California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Aon AON Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio AON Stock Details AON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$99.7M Sell
308,973
-9,368
-3% -$3.11M 0.11% 166
2025
Q4 		$112M Sell
318,341
-7,233
-2% -$2.53M 0.11% 151
2025
Q3 		$116M Buy
325,574
+12,956
+4% +$4.69M 0.12% 151
2025
Q2 		$112M Buy
312,618
+2,806
+0.9% +$1.02M 0.12% 151
2025
Q1 		$124M Sell
309,812
-4,482
-1% -$1.72M 0.15% 118
2024
Q4 		$113M Sell
314,294
-7,815
-2% -$2.87M 0.13% 138
2024
Q3 		$111M Sell
322,109
-3,934
-1% -$1.29M 0.13% 144
2024
Q2 		$95.7M Sell
326,043
-6,620
-2% -$1.96M 0.12% 157
2024
Q1 		$111M Buy
332,663
+903
+0.3% +$280K 0.14% 134
2023
Q4 		$96.5M Buy
331,760
+4,843
+1% +$1.55M 0.13% 137
2023
Q3 		$106M Sell
326,917
-13,349
-4% -$4.42M 0.16% 115
2023
Q2 		$117M Sell
340,266
-9,912
-3% -$3.22M 0.17% 111
2023
Q1 		$110M Sell
350,178
-8,185
-2% -$2.53M 0.16% 115
2022
Q4 		$108M Buy
358,363
+651
+0.2% +$190K 0.17% 116
2022
Q3 		$95.8M Sell
357,712
-5,676
-2% -$1.6M 0.16% 120
2022
Q2 		$98M Sell
363,388
-11,946
-3% -$3.43M 0.16% 126
2022
Q1 		$122M Buy
375,334
+25,901
+7% +$7.53M 0.16% 115
2021
Q4 		$105M Buy
349,433
+11,437
+3% +$3.43M 0.12% 147
2021
Q3 		$96.6M Sell
337,996
-7,341
-2% -$1.97M 0.12% 143
2021
Q2 		$82.5M Sell
345,337
-27,790
-7% -$6.79M 0.1% 168
2021
Q1 		$85.9M Sell
373,127
-11,371
-3% -$2.5M 0.11% 152
2020
Q4 		$81.2M Buy
384,498
+459
+0.1% +$93.7K 0.11% 149
2020
Q3 		$79.2M Buy
384,039
+2,291
+0.6% +$458K 0.13% 141
2020
Q2 		$73.5M Sell
381,748
-5,959
-2% -$1.11M 0.13% 144
2020
Q1 		$64M Sell
387,707
-47,425
-11% -$9.71M 0.14% 140
2019
Q4 		$90.6M Buy
435,132
+33,514
+8% +$6.64M 0.15% 126
2019
Q3 		$77.7M Sell
401,618
-2,977
-0.7% -$574K 0.15% 133
2019
Q2 		$78.1M Buy
404,595
+734
+0.2% +$133K 0.15% 128
2019
Q1 		$68.9M Buy
403,861
+1,751
+0.4% +$284K 0.14% 138
2018
Q4 		$58.5M Buy
402,110
+2,243
+0.6% +$348K 0.13% 145
2018
Q3 		$61.5M Sell
399,867
-63
-0% -$9.21K 0.12% 159
2018
Q2 		$54.9M Sell
399,930
-6,426
-2% -$905K 0.11% 174
2018
Q1 		$57M Sell
406,356
-13,449
-3% -$1.88M 0.12% 164
2017
Q4 		$56.3M Sell
419,805
-21,476
-5% -$3.06M 0.12% 173
2017
Q3 		$64.5M Sell
441,281
-39,192
-8% -$5.47M 0.14% 145
2017
Q2 		$63.9M Sell
480,473
-43,069
-8% -$5.45M 0.14% 152
2017
Q1 		$62.1M Sell
523,542
-24,000
-4% -$2.77M 0.13% 162
2016
Q4 		$61.1M Sell
547,542
-14,600
-3% -$1.63M 0.12% 162
2016
Q3 		$63.2M Buy
562,142
+4,700
+0.8% +$518K 0.13% 153
2016
Q2 		$60.9M Sell
557,442
-41,378
-7% -$4.38M 0.13% 148
2016
Q1 		$62.5M Buy
598,820
+76,522
+15% +$7.17M 0.13% 149
2015
Q4 		$48.2M Buy
522,298
+8,350
+2% +$778K 0.12% 171
2015
Q3 		$45.5M Sell
513,948
-800
-0.2% -$77.4K 0.12% 170
2015
Q2 		$51.3M Sell
514,748
-2,728
-0.5% -$273K 0.12% 160
2015
Q1 		$49.7M Sell
517,476
-39,480
-7% -$3.82M 0.12% 177
2014
Q4 		$52.8M Buy
556,956
+5,259
+1% +$470K 0.12% 165
2014
Q3 		$48.4M Buy
551,697
+10,000
+2% +$873K 0.12% 174
2014
Q2 		$48.8M Sell
541,697
-20,600
-4% -$1.78M 0.12% 170
2014
Q1 		$47.4M Buy
562,297
+2,600
+0.5% +$216K 0.13% 163
2013
Q4 		$47M Buy
559,697
+3,900
+0.7% +$309K 0.13% 157
2013
Q3 		$41.4M Buy
555,797
+17,121
+3% +$1.17M 0.12% 164
2013
Q2 		$34.7M Buy
+538,676
New +$34.1M 0.11% 177

Other funds holding AON

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

California State Teachers Retirement System (CalSTRS) reduced its Aon (AON) stake by 2.9% in Q1 2026, selling an estimated $3.11M and leaving 308,973 shares worth $99.7M. The position accounts for 0.11% of the portfolio, ranked #166.

California State Teachers Retirement System (CalSTRS) first reported a position in AON in Q2 2013 and has held it in 52 quarters since. The position peaked at $124M in Q1 2025. 1,253 funds tracked by Wall St. Rank hold AON as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 308,973 shares of Aon worth $99.7M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) sold 9,368 Aon shares in Q1 2026, an estimated $3.11M.
  • Aon made up 0.11% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #166 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Aon in Q2 2013 and has held it in 52 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Aon position peaked at $124M in Q1 2025.
  • 1,253 funds tracked by Wall St. Rank held Aon as of Q1 2026.

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