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CIK 0000315293 · Large accelerated filer

Ticker
AON
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
FY end
Dec 31
Incorporated
Ireland
Entity type
operating
EIN
981539969
Phone
35312666000
Business address
15 GEORGES QUAY, DUBLIN 2, Ireland, D02 VR98
Former names
AON CORP
Open-market buys, last 90 days
$6,549,688
in 1 filing
Open-market sales, last 90 days
$0
in 0 filings

Net +$6,549,688. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. KNIGHT LESTER B +$6.5M Director 1 filing

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-02-19 Case Gregory C President & CEO Gift −7,500 22,412
2026-02-19 Case Gregory C President & CEO Gift −11,206 11,206
2026-02-19 Case Gregory C President & CEO Gift −11,206 0
2026-02-19 Case Gregory C President & CEO Gift +11,206 175,170
2026-02-19 Case Gregory C President & CEO Gift +11,206 175,169
2026-02-18 Stevens Lisa Chief Administrative Officer Gift −32 26,321.49
2026-02-17 Case Gregory C President & CEO Option exercise +2,357 941,138.59
2026-02-17 Case Gregory C President & CEO Shares withheld for taxes −1,001.7 $325.96 $327K 940,136.9
2026-02-17 Case Gregory C President & CEO Gift −3,214 936,922.9
2026-02-17 Case Gregory C President & CEO Gift −3,214 933,708.9
2026-02-17 Case Gregory C President & CEO Gift +3,214 132,243
2026-02-17 Case Gregory C President & CEO Gift +3,214 132,243
2026-02-17 Case Gregory C President & CEO Option exercise · Restricted Share Unit (Right to Receive) −2,357 0
2026-02-17 Zeidel Darren General Counsel Sale 10b5-1 −5,040 $325.79 $1.6M 20,254.1
2026-02-13 Zeidel Darren General Counsel Option exercise +871 25,563.53
2026-02-13 Zeidel Darren General Counsel Shares withheld for taxes −385.84 $321.70 $124K 25,177.68
2026-02-13 Zeidel Darren General Counsel Option exercise +209 25,386.68
2026-02-13 Zeidel Darren General Counsel Shares withheld for taxes −92.59 $321.70 $30K 25,294.1
2026-02-13 Zeidel Darren General Counsel Option exercise · Restricted Share Unit (Right to Receive) −871 0
2026-02-13 Zeidel Darren General Counsel Option exercise · Restricted Share Unit (Right to Receive) −209 419

Page 4 of 16 · 306 trades