BAUPOST GROUP LLC/MA — AON PLC AON: Quarterly 13F Position History
BAUPOST GROUP LLC/MA has reported AON PLC (AON) on 1 13F-HR filing in Pactolio's tracked window, first appearing in Q1 2026. As of Q1 2026, the position is sized at 769,000 shares ($248.2M market value, 4.85% of the equity book).
- 769,000Shares Held (Latest Filing)
- $248.2MReported Market Value (Latest Filing)
- 4.85%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- $0Quarter-over-Quarter Value Change
- 769,000Peak Reported Shares (Historical)
Recent initiation: BAUPOST GROUP LLC/MA first reported AON on the Q1 2026 filing — fewer than three quarters of history are available.
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 1 quarter
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 769,000 | — | — | $248.2M | 4.85% | $322.78 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did BAUPOST GROUP LLC/MA first disclose a AON position in 13F-HR filings?
BAUPOST GROUP LLC/MA first reported AON PLC (AON) on its 13F-HR filing for the period ending 2026-03-31 (Q1 2026). The position has appeared on 1 reported quarter within Pactolio's tracked window.
What was BAUPOST GROUP LLC/MA's most recent quarter-over-quarter share-count change in AON?
BAUPOST GROUP LLC/MA reported 769,000 shares of AON on the most recent 13F-HR filing (Q1 2026). Insufficient prior data for a quarter-over-quarter share-count comparison.
Does the implied price-per-share represent BAUPOST GROUP LLC/MA's cost basis in AON?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.