Andreas Halvorsen's AON Position Overview
Andreas Halvorsen (via Viking Global Investors Lp) currently holds 1.09 M shares of Aon plc (AON) worth $350.9 M, representing 0.98% of the portfolio. First purchased in 2020-Q2, this medium-term investment has been held for 16 quarters.
Based on 13F filings, Andreas Halvorsen has maintained a strategic position in AON, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2021, adding 1.51 M shares. Largest reduction occurred in Q3 2021, reducing 2.9 M shares.
Analysis based on 13F filings available since 2013 Q2
Andreas Halvorsen's Aon plc (AON) Holding Value Over Time
Track share changes against reported price movement
Quarterly Aon plc (AON) Trades by Andreas Halvorsen
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +303,464 | Add 38.72% | 1.09 M | $322.78 |
| Q4 2025 | -630,968 | Reduce 44.60% | 783,650 | $352.88 |
| Q3 2025 | +1.41 M | New Buy | 1.41 M | $356.58 |
| Q1 2025 | -720,364 | Sold Out | 0 | $0.00 |
| Q4 2024 | +157,337 | Add 27.94% | 720,364 | $359.16 |
| Q3 2024 | +563,027 | New Buy | 563,027 | $345.99 |
| Q3 2022 | -704,639 | Sold Out | 0 | $0.00 |
| Q2 2022 | -888,441 | Reduce 55.77% | 704,639 | $269.68 |
| Q1 2022 | +82,563 | Add 5.47% | 1.59 M | $325.63 |
| Q4 2021 | +1.51 M | New Buy | 1.51 M | $300.56 |
| Q3 2021 | -2.9 M | Sold Out | 0 | $0.00 |
| Q2 2021 | +748,565 | Add 34.74% | 2.9 M | $238.76 |
| Q1 2021 | -416,131 | Reduce 16.19% | 2.15 M | $230.11 |
| Q4 2020 | -442,286 | Reduce 14.68% | 2.57 M | $211.27 |
| Q3 2020 | +56,877 | Add 1.92% | 3.01 M | $206.30 |
| Q2 2020 | +2.96 M | New Buy | 2.96 M | $192.60 |
Andreas Halvorsen's Aon plc Investment FAQs
Andreas Halvorsen first purchased Aon plc (AON) in Q2 2020, acquiring 2,956,029 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Andreas Halvorsen has held Aon plc (AON) for 16 quarters since Q2 2020.
Andreas Halvorsen's largest addition to Aon plc (AON) was in Q2 2020, adding 2,956,029 shares worth $569.33 M.
According to the latest 13F filing for Q1 2026, Andreas Halvorsen's firm, Viking Global Investors Lp, owns 1,087,114 shares of Aon plc (AON), valued at approximately $350.9 M.
As of the Q1 2026 filing, Aon plc (AON) represents approximately 0.98% of Andreas Halvorsen's publicly disclosed stock portfolio, making it one of their key holdings.
Andreas Halvorsen's peak holding in Aon plc (AON) was 3,012,906 shares, as reported at the end of Q3 2020.