BlackRock
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BlackRock’s Aon AON Stock Holding History

BlackRock’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
Q2 		$5.21B Sell
15,716,429
-432,078
-3% -$139M 0.08% 216
2026
Q1 		$5.21B Sell
16,148,507
-88,427
-0.5% -$29.4M 0.09% 193
2025
Q4 		$5.73B Buy
16,236,934
+390,348
+2% +$136M 0.1% 163
2025
Q3 		$5.65B Sell
15,846,586
-84,174
-0.5% -$30.5M 0.1% 160
2025
Q2 		$5.68B Buy
15,930,760
+831,475
+6% +$301M 0.11% 160
2025
Q1 		$6.03B Buy
15,099,285
+340,424
+2% +$131M 0.13% 133
2024
Q4 		$5.3B Buy
14,758,861
+501,175
+4% +$184M 0.11% 152
2024
Q3 		$4.93B Sell
14,257,686
-1,008,659
-7% -$330M 0.1% 164
2024
Q2 		$4.48B Buy
15,266,345
+781,417
+5% +$231M 0.1% 160
2024
Q1 		$4.83B Buy
14,484,928
+1,056,337
+8% +$327M 0.11% 155
2023
Q4 		$3.91B Buy
13,428,591
+290,418
+2% +$93M 0.1% 178
2023
Q3 		$4.26B Sell
13,138,173
-621,677
-5% -$206M 0.12% 134
2023
Q2 		$4.75B Sell
13,759,850
-187,394
-1% -$60.9M 0.13% 126
2023
Q1 		$4.4B Buy
13,947,244
+210,313
+2% +$65.1M 0.13% 132
2022
Q4 		$4.12B Buy
13,736,931
+205,685
+2% +$60.1M 0.13% 147
2022
Q3 		$3.62B Sell
13,531,246
-59,520
-0.4% -$16.8M 0.12% 151
2022
Q2 		$3.67B Sell
13,590,766
-668,594
-5% -$192M 0.12% 157
2022
Q1 		$4.64B Sell
14,259,360
-131,227
-0.9% -$38.2M 0.13% 137
2021
Q4 		$4.33B Sell
14,390,587
-1,693,755
-11% -$508M 0.11% 162
2021
Q3 		$4.6B Sell
16,084,342
-458,717
-3% -$123M 0.13% 129
2021
Q2 		$3.95B Sell
16,543,059
-524,399
-3% -$128M 0.11% 156
2021
Q1 		$3.93B Sell
17,067,458
-239,870
-1% -$52.8M 0.12% 152
2020
Q4 		$3.66B Sell
17,307,328
-693,538
-4% -$142M 0.12% 151
2020
Q3 		$3.71B Buy
18,000,866
+182,820
+1% +$36.5M 0.14% 133
2020
Q2 		$3.43B Buy
17,818,046
+472,104
+3% +$88M 0.14% 134
2020
Q1 		$2.86B Buy
17,345,942
+722,044
+4% +$148M 0.14% 142
2019
Q4 		$3.46B Buy
16,623,898
+97,500
+0.6% +$19.3M 0.13% 143
2019
Q3 		$3.2B Buy
16,526,398
+240,848
+1% +$46.5M 0.13% 146
2019
Q2 		$3.14B Sell
16,285,550
-344,560
-2% -$62.4M 0.13% 146
2019
Q1 		$2.84B Buy
16,630,110
+632,726
+4% +$103M 0.13% 155
2018
Q4 		$2.33B Buy
15,997,384
+1,162,646
+8% +$181M 0.12% 164
2018
Q3 		$2.28B Sell
14,834,738
-189,003
-1% -$27.6M 0.1% 198
2018
Q2 		$2.06B Sell
15,023,741
-92,664
-0.6% -$13.1M 0.09% 207
2018
Q1 		$2.12B Sell
15,116,405
-223,469
-1% -$31.3M 0.1% 200
2017
Q4 		$2.06B Sell
15,339,874
-275,322
-2% -$39.2M 0.1% 209
2017
Q3 		$2.28B Sell
15,615,196
-48,533
-0.3% -$6.77M 0.12% 183
2017
Q2 		$2.08B Buy
15,663,729
+100,762
+0.6% +$12.7M 0.11% 186
2017
Q1 		$1.85B Buy
15,562,967
+14,795,578
+1,928% +$1.71B 0.1% 208
2016
Q4 		$85.6M Sell
767,389
-37,111
-5% -$4.14M 0.12% 190
2016
Q3 		$90.5M Buy
804,500
+11,700
+1% +$1.29M 0.13% 177
2016
Q2 		$86.6M Buy
792,800
+243,340
+44% +$25.7M 0.13% 176
2016
Q1 		$57.4M Sell
549,460
-73,508
-12% -$6.89M 0.09% 244
2015
Q4 		$57.4M Sell
622,968
-5,812
-0.9% -$541K 0.08% 271
2015
Q3 		$55.7M Buy
628,780
+40,201
+7% +$3.89M 0.09% 254
2015
Q2 		$58.7M Sell
588,579
-77,916
-12% -$7.8M 0.09% 259
2015
Q1 		$64.1M Buy
666,495
+24,446
+4% +$2.37M 0.09% 260
2014
Q4 		$60.9M Sell
642,049
-14,095
-2% -$1.26M 0.09% 256
2014
Q3 		$57.5M Buy
656,144
+36,023
+6% +$3.15M 0.08% 260
2014
Q2 		$55.9M Sell
620,121
-65,501
-10% -$5.67M 0.08% 261
2014
Q1 		$57.8M Buy
685,622
+12,878
+2% +$1.07M 0.09% 232
2013
Q4 		$56.4M Buy
672,744
+18,810
+3% +$1.49M 0.09% 230
2013
Q3 		$48.7M Buy
653,934
+21,034
+3% +$1.44M 0.09% 242
2013
Q2 		$40.7M Buy
+632,900
New +$40.1M 0.08% 253

Other funds holding AON

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

BlackRock's AON Position: Q2 2026 in Review

BlackRock reduced its Aon (AON) stake by 2.7% in Q2 2026, selling an estimated $139M and leaving 15,716,429 shares worth $5.21B. The position accounts for 0.08% of the portfolio, ranked #216.

BlackRock first reported a position in AON in Q2 2013 and has held it in 53 quarters since. The position peaked at $6.03B in Q1 2025. 1,029 funds tracked by Wall St. Rank hold AON as of Q2 2026.

  • BlackRock held 15,716,429 shares of Aon worth $5.21B as of Q2 2026.
  • BlackRock sold 432,078 Aon shares in Q2 2026, an estimated $139M.
  • Aon made up 0.08% of BlackRock's portfolio in Q2 2026, its #216 holding.
  • BlackRock first reported a position in Aon in Q2 2013 and has held it in 53 quarters since.
  • BlackRock's Aon position peaked at $6.03B in Q1 2025.
  • 1,029 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.