Total institutional value fell $5.96B in Q1 2026, with 144 exits vs 120 new buys, despite a slight buyer count edge (607 vs 553). The only insider trade in 90 days was a $216K sale by the General Counsel, with zero cluster buying.

Confirmation

A further rise in exit counts or additional insider sales would confirm the distribution trend.

Invalidation Risk

A reversal into institutional accumulation or an insider buy would invalidate the bearish stance.

This game-theory analysis is AI-assisted and derived from public regulatory filings, covering historical data only. For informational purposes, not investment advice.

Insider Trading (Form 4)

90d confidence

unique buyers

—

buy value

data as of 2026-07-17

12-Month Buy/Sell Activity

Nov 25

BuySell

Action	Insider	Title	Date	Value
Sell	Darren Zeidel	General Counsel	2026-07-07	$216K
Sell	Darren Zeidel	General Counsel	2026-02-26	$1.42M
Sell	Darren Zeidel	General Counsel	2026-02-17	$1.64M
Buy	KNIGHT LESTER B	Director	2026-02-10	$1.28M
Sell	Darren Zeidel	General Counsel	2025-11-05	$425K
Sell	Darren Zeidel	General Counsel	2025-11-05	$2.61M

View all insider trades →

Form 144 Pre-Sale Notices

Filings (90d)

$2.81M

Total Est. Value

8K shares

Planned Shares

Last Filed 2026-07-17

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Zeidel Darren	Officer	2026-07-17	2K shares	$726K
Zeidel Darren	Officer	2026-07-07	600 shares	$216K
Goltermann Lori	Officer	2026-06-04	6K shares	$1.87M

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

Filings (14d)

Data as of 2026-07-01

2026-07-01

Aon plc disclosed an amendment to Gregory C. Case's international assignment letter, extending the term from June 30, 2026 to June 30, 2027. The amendment was entered into on June 26, 2026 between Aon Corporation and Mr. Case.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

FAQ

Who are the top institutional investors holding Aon plc (AON)?

Major stakeholders currently include BlackRock, Inc. ($5.2B), Vanguard Capital Management LLC ($4.4B), Capital World Investors ($3.7B). Based on the latest 13F filings, there are a total of 1254 tracked investment funds and institutions maintaining positions in AON.

What is the overall institutional sentiment toward AON recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $6.0B, driven by 608 managers accumulating shares while 553 reduced their exposure.

Which institutions have been selling or reducing their AON positions?

In the latest period, 409 funds trimmed their holdings, and 144 managers completely exited their positions. The aggregate reported sell value was $32.5B.

Are there any notable investors adding AON to their portfolios?

Yes, buying activity remains notable. 121 institutions opened new positions in {ticker}, and 487 existing holders added to their shares. The total reported buy value for the quarter amounted to $29.8B.