AON Aon plc

NYSE
$295.64

Aon plc (AON) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
-19.05
17 buyers / 25 sellers
SELLING
Funds compared
42
funds with comparable AON positions
31 current holders · 34 prior-quarter holders
Net share change
-692.7K
+1.82M added, -2.51M cut
Position activity
8 new 9 increased 14 reduced 11 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Southpoint Capital Advisors Long/Short Sold Out -500.0K -100.0% $165.8M 0.0% 81
Prana Capital Management Long/Short Sold Out -323.5K -100.0% $107.3M 0.0% 77
Farallon Capital Management Event Value Reduced -1.13M -45.0% $374.8M 2.7% 74
Point72 Asset Management, L.P. Sold Out -33.3K -100.0% $11.0M 0.0% 63
RENAISSANCE TECHNOLOGIES LLC Quant Sold Out -11.6K -100.0% $3.8M 0.0% 60
MARSHALL WACE, LLP Long/Short New +46.6K — $15.5M 0.0% 60
Weiss Asset Management Event Quant New +38.0K — $12.6M 0.2% 59
Hawk Ridge Capital Management Long/Short New +29.0K — $9.6M 0.3% 59
MILLENNIUM MANAGEMENT LLC Increased +292.2K +1462.9% $96.9M 0.1% 58
Qube Research & Technologies Ltd Quant Sold Out -24.3K -100.0% $8.1M 0.0% 57

Most significant buyers

By move score, not size.

  • MARSHALL WACE, LLP New · +46.6K
  • Weiss Asset Management New · +38.0K
  • Hawk Ridge Capital Management New · +29.0K
  • MILLENNIUM MANAGEMENT LLC Increased · +292.2K
  • LMR Partners New · +4.5K

Most significant sellers

By move score, not size.

  • Southpoint Capital Advisors Sold Out · -500.0K
  • Prana Capital Management Sold Out · -323.5K
  • Farallon Capital Management Reduced · -1.13M
  • Point72 Asset Management, L.P. Sold Out · -33.3K
  • RENAISSANCE TECHNOLOGIES LLC Sold Out · -11.6K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Southpoint Capital Advisors 2 0 500.0K -500.0K -100.0% 0.0% Sold Out 81
Prana Capital Management 3 0 323.5K -323.5K -100.0% 0.0% Sold Out 77
Farallon Capital Management 1 1.4M 2.5M -1.13M -45.0% 2.7% Reduced 74
Point72 Asset Management, L.P. 1 0 33.3K -33.3K -100.0% 0.0% Sold Out 63
RENAISSANCE TECHNOLOGIES LLC 1 0 11.6K -11.6K -100.0% 0.0% Sold Out 60
MARSHALL WACE, LLP 2 46.6K 0 +46.6K — 0.0% New 60
Weiss Asset Management 2 38.0K 0 +38.0K — 0.2% New 59
Hawk Ridge Capital Management 2 29.0K 0 +29.0K — 0.3% New 59
MILLENNIUM MANAGEMENT LLC 2 312.2K 20.0K +292.2K +1462.9% 0.1% Increased 58
Qube Research & Technologies Ltd 2 0 24.3K -24.3K -100.0% 0.0% Sold Out 57
Capula Management 2 0 273 -273 -100.0% 0.0% Sold Out 56
LMR Partners 3 4.5K 0 +4.5K — 0.0% New 55
AQR Capital Management 3 1.9M 979.8K +926.0K +94.5% 0.2% Increased 54
ExodusPoint Capital Management 3 0 6.8K -6.8K -100.0% 0.0% Sold Out 54
Hudson Bay Capital Management 3 2.9K 0 +2.9K — 0.0% New 53
Voleon Capital Management 3 0 10.2K -10.2K -100.0% 0.0% Sold Out 53
Polar Asset Management Partners 3 717 0 +717 — 0.0% New 53
Graham Capital Management 3 0 16.3K -16.3K -100.0% 0.0% Sold Out 53
Verition Fund Management 2 385.0K 228.2K +156.8K +68.7% 1.2% Increased 52
Brevan Howard Capital Management 3 14.4K 0 +14.4K — 0.1% New 52
Y-Intercept 4 3.5K 0 +3.5K — 0.0% New 50
J. Goldman & Co. 3 0 675 -675 -100.0% 0.0% Sold Out 50
Parallax Volatility Advisers 3 0 2.5K -2.5K -100.0% 0.0% Sold Out 50
ADAGE CAPITAL PARTNERS GP, L.L.C. 2 380.4K 222.2K +158.2K +71.2% 0.2% Increased 49
Squarepoint Ops LLC 2 10.1K 71.9K -61.8K -85.9% 0.0% Reduced 49
D. E. Shaw & Co., Inc. 1 34.8K 128.3K -93.6K -72.9% 0.0% Reduced 49
Walleye Capital 3 1.1K 186 +901 +484.4% 0.0% Increased 45
TWO SIGMA INVESTMENTS, LP 2 6.3K 19.5K -13.2K -67.8% 0.0% Reduced 45
Trexquant Investment 3 1.6K 13.5K -11.9K -88.5% 0.0% Reduced 44
Schonfeld Strategic Advisors 3 33.8K 114.0K -80.2K -70.4% 0.1% Reduced 43
Engineers Gate 4 2.4K 29.6K -27.2K -92.0% 0.0% Reduced 42
VIKING GLOBAL INVESTORS LP 1 1.2M 1.1M +64.2K +5.9% 1.1% Increased 41
Woodline Partners LP 2 155.1K 102.4K +52.7K +51.5% 0.2% Increased 41
Gotham Asset Management, LLC 2 51.8K 88.8K -37.0K -41.7% 0.0% Reduced 38
Bridgewater Associates 1 15.7K 20.2K -4.6K -22.5% 0.0% Reduced 38
CITADEL ADVISORS LLC 1 105.6K 80.3K +25.3K +31.5% 0.0% Increased 37
Alyeska Investment Group, L.P. 2 42.7K 61.7K -19.0K -30.8% 0.0% Reduced 35
Voloridge Investment Management 2 82.2K 115.0K -32.8K -28.5% 0.1% Reduced 34
Balyasny Asset Management L.P. 2 198.1K 224.3K -26.3K -11.7% 0.1% Reduced 32
Tudor Investment Corporation 2 47.8K 61.0K -13.2K -21.7% 0.1% Reduced 30
Man Group 3 110.9K 139.3K -28.4K -20.4% 0.1% Reduced 28
Chilton Investment Company 2 1.2K 1.1K +66 +5.9% 0.0% Increased 25

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.