secwatch.observer — SEC 8-K summary
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Issuer:     Aon plc (AON)
CIK:        0000315293
Form:       8-K
Filed at:   2026-08-31T10:37:01+00:00
Accession:  0001193125-26-375328
Event type: m_and_a
Sentiment:  positive
Materiality: 0.95
Item codes: 1.01, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Aon to acquire USI for $17.0B cash, creating premier U.S. middle-market platform
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- Aon signs $17.0B cash deal for USI; net $16.7B after ~$278M tax attributes, ~14.5x synergized EBITDA.
- Expects $395M annual run-rate net adjusted EBITDA impact from revenue and cost synergies; accretive to adjusted EPS in 2028.
- USI is 10th largest U.S. broker with ~$3B revenue, 10,500+ staff, ~200 offices; expands Aon's E&S access.
- Mike Sicard to become President of Aon and global CEO of Middle Market, reporting to Greg Case.
- Funding via new debt; expects to keep Baa2/A- ratings; no near-term buybacks as it prioritizes de-leveraging.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/315293/000119312526375328/0001193125-26-375328-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/315293/000119312526375328/d108801d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-375328

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer