Aon Corp
Insurance Agents, Brokers & Service · CHICAGO · IL
High confidence (85%)
Updated Oct 19, 2026, 12:03 AM
What is happening
Derived by rule set status-rules-2026.09.7
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
Latest material event: Aon Corp was delisted from its exchange (Feb 17, 2026)
Timeline
Every material event, newest first. History is never overwritten.
Aon Corp was delisted from its exchange
Feb 17, 2026
Delisting effective
- SEC EDGAR — “X0203 0000876661 NEW YORK STOCK EXCHANGE LLC 0001556748 Aon Corp 001-35928 200 E. Randolph Street8th Floor Chicago IL ILLINOIS 60601 Guarantor of 2.875% Senior Notes Due 2026 17 CFR 240.12d2-2(a)(1) Tyler Mastronardi Analyst, Market Watch 2026-02-17”
Company information
- Founded
- —
- Employees (estimate)
- —
- Industry
- Insurance Agents, Brokers & Service
- Subindustry
- —
- SEC CIK
- 0001556748
- Website
- —
- —
- Headquarters
- CHICAGO, IL
- Also known as
- —
- Legal entities
- Aon Corp
Sources
Every material source used to build this profile.
SEC Company Submissions (TIER 1 · UNVERIFIED)
Aon Corp — Insurance Agents, Brokers & Service (SIC 6411) — CHICAGO, IL
View source recordSEC EDGAR (TIER 1 · UNVERIFIED)
X0203 0000876661 NEW YORK STOCK EXCHANGE LLC 0001556748 Aon Corp 001-35928 200 E. Randolph Street8th Floor Chicago IL ILLINOIS 60601 Guarantor of 2.875% Senior Notes Due 2026 17 CFR 240.12d2-2(a)(1) Tyler Mastronardi Analyst, Market Watch 2026-02-17
View source record
Status history
Every derived status, with the rule that produced it.
- NO_LONGER_LISTED → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:30 AM
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
- DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:12 AM
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:35 PM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 14, 2026, 04:45 PM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.
- UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:09 AM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.