Andreas Halvorsen’s Aon AON Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $382M | Buy |
1,151,269
+64,155
| +6% | +$20.7M | 1.09% | 34 |
|
|
2026
Q1 | $351M | Buy |
1,087,114
+303,464
| +39% | +$101M | 0.98% | 40 |
|
|
2025
Q4 | $277M | Sell |
783,650
-630,968
| -45% | -$220M | 0.73% | 50 |
|
|
2025
Q3 | $504M | Buy |
+1,414,618
| New | +$512M | 1.31% | 35 |
|
|
2025
Q1 | – | Sell |
-720,364
| Closed | -$259M | – | 94 |
|
|
2024
Q4 | $259M | Buy |
720,364
+157,337
| +28% | +$57.9M | 0.84% | 39 |
|
|
2024
Q3 | $195M | Buy |
+563,027
| New | +$184M | 0.71% | 41 |
|
|
2022
Q3 | – | Sell |
-704,639
| Closed | -$190M | – | 90 |
|
|
2022
Q2 | $190M | Sell |
704,639
-888,441
| -56% | -$255M | 0.87% | 38 |
|
|
2022
Q1 | $519M | Buy |
1,593,080
+82,563
| +5% | +$24M | 2.1% | 16 |
|
|
2021
Q4 | $454M | Buy |
+1,510,517
| New | +$453M | 1.31% | 23 |
|
|
2021
Q3 | – | Sell |
-2,903,054
| Closed | -$693M | – | 97 |
|
|
2021
Q2 | $693M | Buy |
2,903,054
+748,565
| +35% | +$183M | 2.1% | 20 |
|
|
2021
Q1 | $496M | Sell |
2,154,489
-416,131
| -16% | -$91.6M | 1.48% | 24 |
|
|
2020
Q4 | $543M | Sell |
2,570,620
-442,286
| -15% | -$90.3M | 1.49% | 24 |
|
|
2020
Q3 | $622M | Buy |
3,012,906
+56,877
| +2% | +$11.4M | 2.25% | 12 |
|
|
2020
Q2 | $569M | Buy |
2,956,029
+665,509
| +29% | +$124M | 2.46% | 13 |
|
|
2020
Q1 | $378M | Buy |
2,290,520
+1,518,493
| +197% | +$311M | 1.97% | 17 |
|
|
2019
Q4 | $161M | Sell |
772,027
-20,730
| -3% | -$4.1M | 0.75% | 34 |
|
|
2019
Q3 | $153M | Sell |
792,757
-59,021
| -7% | -$11.4M | 0.8% | 33 |
|
|
2019
Q2 | $164M | Buy |
851,778
+197,554
| +30% | +$35.8M | 0.74% | 31 |
|
|
2019
Q1 | $112M | Buy |
654,224
+130,417
| +25% | +$21.1M | 0.64% | 36 |
|
|
2018
Q4 | $76.1M | Buy |
523,807
+40,939
| +8% | +$6.36M | 0.43% | 40 |
|
|
2018
Q3 | $74.3M | Buy |
+482,868
| New | +$70.6M | 0.41% | 44 |
|
|
2016
Q3 | – | Sell |
-703,995
| Closed | -$76.9M | – | 63 |
|
|
2016
Q2 | $76.9M | Buy |
703,995
+132,439
| +23% | +$14M | 0.33% | 47 |
|
|
2016
Q1 | $59.7M | Buy |
+571,556
| New | +$53.6M | 0.26% | 45 |
|
|
2015
Q3 | – | Sell |
-1,912,946
| Closed | -$191M | – | 63 |
|
|
2015
Q2 | $191M | Buy |
1,912,946
+1,059,185
| +124% | +$106M | 0.72% | 36 |
|
|
2015
Q1 | $82.1M | Buy |
+853,761
| New | +$82.6M | 0.32% | 48 |
|
|
2014
Q4 | – | Sell |
-1,662,625
| Closed | -$146M | – | 64 |
|
|
2014
Q3 | $146M | Buy |
+1,662,625
| New | +$145M | 0.59% | 41 |
|
Other funds holding AON
Andreas Halvorsen's AON Position: Q2 2026 in Review
Andreas Halvorsen increased its Aon (AON) stake by 5.9% in Q2 2026, buying an estimated $20.7M and bringing the position to 1,151,269 shares worth $382M. The position accounts for 1.09% of the portfolio, ranked #34.
Andreas Halvorsen first reported a position in AON in Q3 2014 and has held it in 26 quarters since. The position peaked at $693M in Q2 2021. 1,256 funds tracked by Wall St. Rank hold AON as of Q2 2026.
- Andreas Halvorsen held 1,151,269 shares of Aon worth $382M as of Q2 2026.
- Andreas Halvorsen bought 64,155 Aon shares in Q2 2026, an estimated $20.7M.
- Aon made up 1.09% of Andreas Halvorsen's portfolio in Q2 2026, its #34 holding.
- Andreas Halvorsen first reported a position in Aon in Q3 2014 and has held it in 26 quarters since.
- Andreas Halvorsen's Aon position peaked at $693M in Q2 2021.
- 1,256 funds tracked by Wall St. Rank held Aon as of Q2 2026.
Based on Viking Global Investors's 13F filing for Q2 2026, filed 14 Aug 2026.