Mawer Investment Management’s Aon AON Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $412M | Sell |
1,277,088
-200,605
| -14% | -$66.7M | 2.67% | 10 |
|
|
2025
Q4 | $521M | Sell |
1,477,693
-1,020,396
| -41% | -$356M | 2.92% | 9 |
|
|
2025
Q3 | $891M | Sell |
2,498,089
-473,444
| -16% | -$171M | 4.63% | 5 |
|
|
2025
Q2 | $1.06B | Sell |
2,971,533
-302,041
| -9% | -$109M | 5.38% | 3 |
|
|
2025
Q1 | $1.31B | Sell |
3,273,574
-629,153
| -16% | -$241M | 6.31% | 2 |
|
|
2024
Q4 | $1.4B | Sell |
3,902,727
-366,738
| -9% | -$135M | 6.36% | 1 |
|
|
2024
Q3 | $1.48B | Sell |
4,269,465
-136,315
| -3% | -$44.6M | 6.73% | 2 |
|
|
2024
Q2 | $1.29B | Buy |
4,405,780
+52,099
| +1% | +$15.4M | 6.12% | 3 |
|
|
2024
Q1 | $1.45B | Sell |
4,353,681
-69,321
| -2% | -$21.5M | 6.74% | 2 |
|
|
2023
Q4 | $1.29B | Sell |
4,423,002
-77,367
| -2% | -$24.8M | 6.59% | 2 |
|
|
2023
Q3 | $1.46B | Sell |
4,500,369
-92,729
| -2% | -$30.7M | 7.8% | 1 |
|
|
2023
Q2 | $1.59B | Sell |
4,593,098
-332,184
| -7% | -$108M | 8.29% | 1 |
|
|
2023
Q1 | $1.55B | Sell |
4,925,282
-208,900
| -4% | -$64.7M | 8.47% | 1 |
|
|
2022
Q4 | $1.54B | Sell |
5,134,182
-126,952
| -2% | -$37.1M | 8.69% | 1 |
|
|
2022
Q3 | $1.41B | Sell |
5,261,134
-110,538
| -2% | -$31.2M | 8.54% | 1 |
|
|
2022
Q2 | $1.45B | Sell |
5,371,672
-186,568
| -3% | -$53.6M | 8.23% | 1 |
|
|
2022
Q1 | $1.81B | Sell |
5,558,240
-598,360
| -10% | -$174M | 8.6% | 1 |
|
|
2021
Q4 | $1.85B | Buy |
6,156,600
+66,280
| +1% | +$19.9M | 8.33% | 1 |
|
|
2021
Q3 | $1.74B | Buy |
6,090,320
+39,608
| +0.7% | +$10.6M | 8.34% | 1 |
|
|
2021
Q2 | $1.44B | Buy |
6,050,712
+213,878
| +4% | +$52.3M | 7.15% | 1 |
|
|
2021
Q1 | $1.34B | Buy |
5,836,834
+230,956
| +4% | +$50.8M | 7.29% | 1 |
|
|
2020
Q4 | $1.18B | Buy |
5,605,878
+189,358
| +3% | +$38.7M | 6.98% | 1 |
|
|
2020
Q3 | $1.12B | Sell |
5,416,520
-24,814
| -0.5% | -$4.96M | 7.31% | 1 |
|
|
2020
Q2 | $1.05B | Buy |
5,441,334
+79,167
| +1% | +$14.8M | 7.72% | 1 |
|
|
2020
Q1 | $885M | Sell |
5,362,167
-424,327
| -7% | -$86.9M | 8.14% | 1 |
|
|
2019
Q4 | $1.21B | Buy |
5,786,494
+17,478
| +0.3% | +$3.46M | 9.77% | 1 |
|
|
2019
Q3 | $1.12B | Sell |
5,769,016
-168,642
| -3% | -$32.5M | 10.22% | 1 |
|
|
2019
Q2 | $1.15B | Sell |
5,937,658
-248,007
| -4% | -$44.9M | 7.41% | 1 |
|
|
2019
Q1 | $1.06B | Buy |
6,185,665
+448,696
| +8% | +$72.8M | 7.52% | 1 |
|
|
2018
Q4 | $834M | Buy |
5,736,969
+161,281
| +3% | +$25M | 6.92% | 1 |
|
|
2018
Q3 | $857M | Buy |
5,575,688
+53,439
| +1% | +$7.82M | 6.44% | 1 |
|
|
2018
Q2 | $757M | Buy |
5,522,249
+154,272
| +3% | +$21.7M | 6.12% | 1 |
|
|
2018
Q1 | $753M | Buy |
5,367,977
+178,402
| +3% | +$25M | 6.31% | 1 |
|
|
2017
Q4 | $695M | Buy |
5,189,575
+20,199
| +0.4% | +$2.88M | 5.75% | 1 |
|
|
2017
Q3 | $755M | Buy |
5,169,376
+38,212
| +0.7% | +$5.33M | 6.44% | 1 |
|
|
2017
Q2 | $682M | Buy |
5,131,164
+122,803
| +2% | +$15.5M | 6.3% | 1 |
|
|
2017
Q1 | $594M | Buy |
5,008,361
+213,491
| +4% | +$24.6M | 5.74% | 1 |
|
|
2016
Q4 | $535M | Sell |
4,794,870
-97,327
| -2% | -$10.8M | 5.47% | 1 |
|
|
2016
Q3 | $550M | Buy |
4,892,197
+130,298
| +3% | +$14.4M | 5.78% | 1 |
|
|
2016
Q2 | $520M | Buy |
4,761,899
+252,172
| +6% | +$26.7M | 7.34% | 1 |
|
|
2016
Q1 | $471M | Buy |
4,509,727
+484,339
| +12% | +$45.4M | 5.47% | 1 |
|
|
2015
Q4 | $371M | Buy |
4,025,388
+427,831
| +12% | +$39.9M | 4.77% | 1 |
|
|
2015
Q3 | $319M | Buy |
3,597,557
+416,611
| +13% | +$40.3M | 4.37% | 2 |
|
|
2015
Q2 | $317M | Buy |
3,180,946
+270,993
| +9% | +$27.1M | 4.04% | 2 |
|
|
2015
Q1 | $280M | Buy |
2,909,953
+113,345
| +4% | +$11M | 3.57% | 3 |
|
|
2014
Q4 | $265M | Buy |
2,796,608
+153,402
| +6% | +$13.7M | 3.43% | 4 |
|
|
2014
Q3 | $232M | Buy |
2,643,206
+240,319
| +10% | +$21M | 3.1% | 6 |
|
|
2014
Q2 | $216M | Buy |
2,402,887
+244,265
| +11% | +$21.1M | 2.88% | 7 |
|
|
2014
Q1 | $182M | Buy |
2,158,622
+501,854
| +30% | +$41.8M | 2.58% | 8 |
|
|
2013
Q4 | $139M | Buy |
1,656,768
+102,626
| +7% | +$8.13M | 2.03% | 12 |
|
|
2013
Q3 | $116M | Buy |
1,554,142
+164,680
| +12% | +$11.3M | 1.86% | 14 |
|
|
2013
Q2 | $89.5M | Buy |
+1,389,462
| New | +$88M | 3.33% | 3 |
|
Other funds holding AON
VCM
VPM
Mawer Investment Management's AON Position: Q1 2026 in Review
Mawer Investment Management reduced its Aon (AON) stake by 14% in Q1 2026, selling an estimated $66.7M and leaving 1,277,088 shares worth $412M. The position accounts for 2.67% of the portfolio, ranked #10.
Mawer Investment Management first reported a position in AON in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.85B in Q4 2021. 1,253 funds tracked by Wall St. Rank hold AON as of Q1 2026.
- Mawer Investment Management held 1,277,088 shares of Aon worth $412M as of Q1 2026.
- Mawer Investment Management sold 200,605 Aon shares in Q1 2026, an estimated $66.7M.
- Aon made up 2.67% of Mawer Investment Management's portfolio in Q1 2026, its #10 holding.
- Mawer Investment Management first reported a position in Aon in Q2 2013 and has held it in 52 quarters since.
- Mawer Investment Management's Aon position peaked at $1.85B in Q4 2021.
- 1,253 funds tracked by Wall St. Rank held Aon as of Q1 2026.
Based on Mawer Investment Management's 13F filing for Q1 2026, filed 6 May 2026.