8-K - Aon plc (0000315293) (Filer)
Published . Updated .
8-K - Aon filed an 8-K with the SEC on Oct 28 (a notice of a material company event).
Directly affected
- AON Aon-0.8% 12d
Named in this report.
Indirectly affected
- XLF Financial Select Sector SPDR-3.5% 30d
Financial Select Sector SPDR holds the financials sector that Aon belongs to, so it often moves with news about it.
- MRSH Marsh & McLennan Companies+6.1% 30d
Marsh & McLennan Companies is a peer of Aon in insurance agents, brokers and service; rivals often move on the same news.
- AJG Arthur J. Gallagher+1.6% 5d
Arthur J. Gallagher is a peer of Aon in insurance agents, brokers and service; rivals often move on the same news.
- BRO Brown & Brown+2.5% 30d
Brown & Brown is a peer of Aon in insurance agents, brokers and service; rivals often move on the same news.
- EQH Equitable Holdings-1.0% 11d
Equitable Holdings is a peer of Aon in insurance agents, brokers and service; rivals often move on the same news.
- ERIE Erie Indemnity-9.2% 11d
Erie Indemnity is a peer of Aon in insurance agents, brokers and service; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| AON | -2.64% | +0.29% | base | after close | after close | after close | after close |
| XLFNo price data for this ticker | — | — | — | — | — | — | — |
| MRSHNo price data for this ticker | — | — | — | — | — | — | — |
| AJGNo price data for this ticker | — | — | — | — | — | — | — |
| BRONo price data for this ticker | — | — | — | — | — | — | — |
| EQHNo price data for this ticker | — | — | — | — | — | — | — |
| ERIENo price data for this ticker | — | — | — | — | — | — | — |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
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Filed: 2026-10-28 AccNo: 0001628280-26-067714 Size: 1 MB Item 2.02: Results of Operations and Financial Condition Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
The price since 28 Oct 2026: Aon (AON) versus the S&P 500
| Company | When | Move | Status |
|---|---|---|---|
| Aon (AON) | three days earlier | +0.29% | final price |
| Aon (AON) | five days earlier | -2.64% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Rohit Khanna sold Aon (AON) (held by a spouse), worth $1,001 - $15,000 on 25 Sep 2026. That is 33 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Kevin Hern sold Marsh & Mclennan Companies (MRSH) (jointly held), worth $50,001 - $100,000 on 23 Sep 2026. That is 35 days before publication. Filed 13 Oct 2026. View the filing.
- Rep. Kevin Hern sold Marsh & Mclennan Companies (MRSH) (jointly held), worth $50,001 - $100,000 on 17 Sep 2026. That is 41 days before publication. Filed 13 Oct 2026. View the filing.
- Rep. Kevin Hern sold Marsh & Mclennan Companies (MRSH) (jointly held), worth $1,001 - $15,000 on 14 Sep 2026. That is 44 days before publication. Filed 25 Sep 2026. View the filing.
- Rep. Michael T. McCaul sold Arthur J. Gallagher (AJG) (held by a spouse), worth $1,001 - $15,000 on 25 Aug 2026. That is 64 days before publication. Filed 14 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, bought Arthur J. Gallagher (AJG), worth $500,001 - $1,000,000 on 10 Aug 2026. That is 79 days before publication. Filed 8 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold Brown & Brown (BRO), worth $15,001 - $50,000 on 26 Aug 2026. That is 63 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. April McClain Delaney sold Brown & Brown (BRO) (held by a dependent child), worth $100,001 - $250,000 on 25 Aug 2026. That is 64 days before publication. Filed 9 Sep 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who is named in “8-K - Aon plc (0000315293) (Filer)”
Companies tied to this story
- AON Aon
Aon (AON) is linked, with no stored direction, high confidence in the 28 Oct 2026 story “8-K - Aon plc (0000315293) (Filer).” Reason on file: SEC 8-K filing -> direct issuer disclosure -> AON
How “8-K - Aon plc (0000315293) (Filer)” reaches Aon (AON)
Aon (AON) is the company in “8-K - Aon plc (0000315293) (Filer),” the 28 Oct 2026 this story story.
What ties Aon (AON) to the headline is this: SEC 8-K filing -> direct issuer disclosure -> AON
The price range for Aon (AON), and the dates in the story
AON traded between 287.23 and 312.12 across 9 sessions. The latest close on file is 302.37.
A simple score for Aon (AON)
14 out of 100
“8-K - Aon plc (0000315293) (Filer)” scores 14 out of 100. The score uses 1 sources, and 1 linked companies.