AON — Aon plcToday's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
40
all time
Members · 12m
1
1 buys · 0 sells · by trade date
Latest filing
07-21
2026-07-21
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
2
13F holders
916
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 40Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 4 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

4 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in AON

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing AON in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Alan Armstrong R–OK1$1.0K to $15.0K2

1 member

Congressional disclosures

Newest filed firstAll 40 rows ↗
Latest congressional filings mentioning AON
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-07-21Alan Armstrong R–OKBUYTraded 03-27 LATE·116d$1K–$15K
2025-06-22Jefferson Shreve R–IN-6SELLTraded 05-08 +45d$15K–$50K
2025-06-17Thomas H. Kean, Jr. R–NJ-7BUYTraded 05-27 +21d$1K–$15K
2025-04-11Jefferson Shreve R–IN-6BUYTraded 03-13 +29d$15K–$50K
2024-08-16Kathy E. Manning D–NC-6SELL partial · SP (partial sale, spouse-owned)Traded 07-02 +45d$15K–$50K
2024-08-16Kathy E. Manning D–NC-6SELL partial · SP (partial sale, spouse-owned)Traded 07-02 +45d$1K–$15K
2024-08-16Kathy E. Manning D–NC-6SELL partial · SP (partial sale, spouse-owned)Traded 07-02 +45d$1K–$15K
2024-06-18Thomas H. Kean, Jr. R–NJ-7BUYTraded 05-06 +43d$1K–$15K
2024-02-14Tommy Tuberville R–ALSELL JT (jointly owned)Traded 01-22 +23d$1K–$15K
2024-02-06Kathy E. Manning D–NC-6BUY SP (spouse-owned)Traded 01-23 +14d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

All holders ↗
Top institutional holders of AON for quarter 2026-03-31, 1–25 of 916 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date (the full holders view shows them), but no document links — the EDGAR link opens the filer's 13F list·§
1BlackRock, Inc.$5.2B1
derived ·§ EDGAR ↗
2VANGUARD CAPITAL MANAGEMENT LLC$4.4B1
derived ·§ EDGAR ↗
3Capital World Investors$3.7B1
derived ·§ EDGAR ↗
4STATE STREET CORP$3.0B1
derived ·§ EDGAR ↗
5MASSACHUSETTS FINANCIAL SERVICES CO /MA/$2.8B1
derived ·§ EDGAR ↗
6DODGE & COX$2.6B1
derived ·§ EDGAR ↗
7MORGAN STANLEY$2.1B1
derived ·§ EDGAR ↗
8VANGUARD PORTFOLIO MANAGEMENT LLC$1.5B1
derived ·§ EDGAR ↗
9DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$952M1
derived ·§ EDGAR ↗
10Independent Franchise Partners LLP$835M1
derived ·§ EDGAR ↗
11Mitsubishi UFJ Asset Management Co., Ltd.$812M1
derived ·§ EDGAR ↗
12FARALLON CAPITAL MANAGEMENT, L.L.C.$811M1
derived ·§ EDGAR ↗
13NORTHERN TRUST CORP$672M1
derived ·§ EDGAR ↗
14WCM INVESTMENT MANAGEMENT, LLC$633M1
derived ·§ EDGAR ↗
15Boston Partners$631M1
derived ·§ EDGAR ↗
16Artisan Partners Limited Partnership$531M1
derived ·§ EDGAR ↗
17BANK OF AMERICA CORP /DE/$511M1
derived ·§ EDGAR ↗
18Veritas Asset Management LLP$491M1
derived ·§ EDGAR ↗
19Amundi$485M1
derived ·§ EDGAR ↗
20Invesco Ltd.$480M1
derived ·§ EDGAR ↗
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC$437M1
derived ·§ EDGAR ↗
22POLEN CAPITAL MANAGEMENT LLC$437M1
derived ·§ EDGAR ↗
23Legal & General Group Plc$433M1
derived ·§ EDGAR ↗
24Mawer Investment Management Ltd.$412M1
derived ·§ EDGAR ↗
25UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$407M1
derived ·§ EDGAR ↗
Show the top 500 of 916 holders
Truncated by Public Filings. Top 500 of 916 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · AON

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · AON PLC

Merged timeline of congressional filings and notable-manager moves on AON
DateWhoChangeSize
2026-05-15Viking Global Investors 13FADD+303,464 sh
2026-05-15Gotham Asset Management 13FADD+7,296 sh
2026-05-15Tudor Investment Corp 13FNEW+61,000 sh
2026-05-15Bridgewater Associates 13FADD+6,851 sh
2026-05-15Berkshire Hathaway 13FEXIT−3,602,995 sh
2026-05-15Moore Capital Management 13FEXIT−139,600 sh
2026-05-14Baupost Group 13FNEW+769,000 sh
2026-05-01Markel Group 13FADD+1,750 sh

8 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)1 buy / 0 sell
Congress net ($ bound)$1.0K to $15.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.