Among active 13F managers last quarter, 2 opened and 25 added, while 24 reduced; the largest holder to move was Massachusetts Financial Services Co (−2.2%). Over the last 180 days, 1 insider bought and 1 insider sold, a net +$4.9M in open-market trades.
The legs disagree, or only one of them leans.
1,121 tracked 13F filers disclose a position in AON as of the latest SEC 13F filings, a combined $55.4B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 15.7M | $5.2B | ▼−2.7% Reduced · −432K sh | Q2 2026 | |
| 2 | Vanguard Capital Management LLC | 13.6M | $4.5B | ▲+0.1% Added · +22K sh | Q2 2026 | |
| 3 | State Street Corp | 9.4M | $3.1B | ▲+2.1% Added · +196K sh | Q2 2026 | |
| 4 | Massachusetts Financial Services Co | 8.4M | $2.8B | ▼−2.2% Reduced · −187K sh | Q1 2026 | |
| 5 | Dodge & Cox | 8.1M | $2.6B | ▲+3.4% Added · +264K sh | Q1 2026 | |
| 6 | Vanguard Portfolio Management LLC | 7.2M | $2.4B | ▲+58% Added · +2.6M sh | Q2 2026 | |
| 7 | Morgan Stanley | 6.4M | $2.1B | ▲+14% Added · +804K sh | Q1 2026 | |
| 8 | JPMorgan Chase & Co | 5.6M | $1.8B | ▲+77% Added · +2.4M sh | Q1 2026 | |
| 9 | Geode Capital Management, LLC | 5.2M | $1.7B | ▼−1.2% Reduced · −64K sh | Q2 2026 | |
| 10 | Bank of New York Mellon Corp | 3.3M | $1.1B | ▼−4.5% Reduced · −158K sh | Q1 2026 | |
| 11 | Norges Bank | 3.3M | $1.2B | ▲+55% Added · +1.2M sh | Q4 2025 | |
| 12 | Price T Rowe Associates Inc | 3.1M | $1.0B | ▲+145% Added · +1.9M sh | Q2 2026 | |
| 13 | DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2.9M | $951.7M | ▲+22% Added · +533K sh | Q1 2026 | |
| 14 | Independent Franchise Partners LLP | 2.6M | $878.0M | ▲+2.3% Added · +59K sh | Q2 2026 | |
| 15 | Mitsubishi UFJ Asset Management Co., Ltd. | 2.5M | $812.3M | ▲+39% Added · +704K sh | Q1 2026 | |
| 16 | Farallon Capital Management, L.L.C. | 2.5M | $811.0M | ▼−5.7% Reduced · −153K sh | Q1 2026 | |
| 17 | Northern Trust Corp | 2.1M | $672.1M | ▼−0.8% Reduced · −18K sh | Q1 2026 | |
| 18 | Boston Partners | 2.0M | $631.1M | ▲+20% Added · +320K sh | Q1 2026 | |
| 19 | Neuberger Berman Group LLC | 1.9M | $599.7M | ▲+3.0% Added · +54K sh | Q1 2026 | |
| 20 | Artisan Partners Limited Partnership | 1.6M | $530.7M | ▲+47% Added · +527K sh | Q1 2026 | |
| 21 | Goldman Sachs Group Inc | 1.6M | $511.3M | ▲+12% Added · +174K sh | Q1 2026 | |
| 22 | Bank Of America Corp | 1.6M | $510.9M | ▲+16% Added · +222K sh | Q1 2026 | |
| 23 | Amundi | 1.5M | $485.1M | ▲+23% Added · +286K sh | Q1 2026 | |
| 24 | Veritas Asset Management LLP | 1.4M | $467.1M | ▼−7.4% Reduced · −112K sh | Q2 2026 | |
| 25 | Charles Schwab Investment Management Inc | 1.4M | $437.4M | ▲+3.4% Added · +44K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership. 2 value rows are withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 2 funds opened a new position in AON and 25 added to an existing one, while 24 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Microsoft CorpMSFT | 702 funds | $324.6B |
| Amazon.com IncAMZN | 690 funds | $250.0B |
| Nvidia CorpNVDA | 683 funds | $475.6B |
| Apple IncAAPL | 676 funds | $354.0B |
| Alphabet Inc-CL AGOOGL | 676 funds | $225.4B |
| Meta Platforms Inc-Class AMETA | 670 funds | $134.4B |
| JPMorgan Chase & CoJPM | 668 funds | $87.0B |
| Alphabet Inc-CL CGOOG | 662 funds | $160.3B |
| Visa Inc-Class A SharesV | 661 funds | $80.6B |
| Eli Lilly & CoLLY | 656 funds | $98.1B |
| Broadcom IncAVGO | 654 funds | $193.7B |
| Johnson & JohnsonJNJ | 643 funds | $64.5B |
Ranked by how many of AON's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in AON.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 2, 2026 | Knight Lester B | Director | Buy (P) 6 lots, same day | 20K | $6.5M |
| Jul 28, 2026 | Zeidel Darren | General Counsel | Sell (S) 3 lots, same day | 2K | $718K |
| Jul 17, 2026 | Zeidel Darren | General Counsel | Sell (S) 3 lots, same day | 2K | $726K |
| Jul 7, 2026 | Zeidel Darren | General Counsel | Sell (S) | 600 | $216K |
| Feb 26, 2026 | Zeidel Darren | General Counsel | Sell (S) | 4K | $1.4M |
| Feb 17, 2026 | Zeidel Darren | General Counsel | Sell (S) | 5K | $1.6M |
| Feb 10, 2026 | Knight Lester B | Director | Buy (P) | 4K | $1.3M |
| Nov 5, 2025 | Zeidel Darren | General Counsel | Sell (S) 2 lots, same day | 9K | $3.0M |
| Nov 27, 2024 | Simon Mindy F. | Chief Operating Officer | Sell (S) | 650 | $256K |
| Nov 26, 2024 | Stevens Lisa | Chief Administrative Officer | Sell (S) | 1K | $494K |
| Aug 28, 2024 | Spruell Byron | Director | Buy (P) | 725 | $247K |
| Aug 12, 2024 | Stevens Lisa | Chief Administrative Officer | Sell (S) | 400 | $132K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 52 | 45 | – |
Insiders Form 4 open-market | 1 | 1 | +$4.9M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for AON
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/AON/capital-change-brief"
Use Arkolith's capital_change_brief for AON. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for AON. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.