Aon plc director Lester B. Knight disclosed open-market purchases totaling 20,000 AON shares via a family partnership, adding to his direct and indirect holdings.
Aon plc (AON) director Lester B. Knight reported a series of open-market purchases of Class A Ordinary Stock on September 2, 2026 through a family partnership, totaling 20,000 shares at weighted-average prices between about $325 and $331 per share. No Rule 10b5-1 trading plan is reported. Following these transactions, Knight is shown with 5,227 shares held directly and additional indirect holdings through his spouse and a personal revocable trust.
Insights
Analyzing…
Insider KNIGHT LESTER B
Role Director
Bought 20,000 shs ($6.55M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Class A Ordinary Stock | 1,739 | $325.63 | $566K |
| Purchase | Class A Ordinary Stock | 5,097 | $326.53 | $1.66M |
| Purchase | Class A Ordinary Stock | 7,212 | $327.52 | $2.36M |
| Purchase | Class A Ordinary Stock | 4,145 | $328.34 | $1.36M |
| Purchase | Class A Ordinary Stock | 1,440 | $329.69 | $475K |
| Purchase | Class A Ordinary Stock | 367 | $330.51 | $121K |
| holding | Class A Ordinary Stock | — | — | — |
| holding | Class A Ordinary Stock | — | — | — |
| holding | Class A Ordinary Stock | — | — | — |
Holdings After Transaction: Class A Ordinary Stock — 163,000 shares (Indirect, By Family Partnership); Class A Ordinary Stock — 5,227 shares (Direct); Class A Ordinary Stock — 124,604 shares (Indirect, By Wife); Class A Ordinary Stock — 26,033 shares (Indirect, Personal Revocable Trust)
Total shares purchased 20,000 shares Class A Ordinary Stock purchased on September 2, 2026 via family partnership
Largest single purchase block 7,212 shares Purchased on September 2, 2026 at a weighted-average price of $327.52
Purchase price range (footnote F1) $325.03–$326.02 per share Prices for transactions included in the 1,739-share weighted-average block at $325.63
Highest stated weighted-average price $330.51 per share Weighted-average for a 367-share purchase block on September 2, 2026
Direct holdings after transaction 5,227 shares Class A Ordinary Stock held directly by Lester B. Knight as of September 2, 2026
Indirect holdings by wife 124,604 shares Class A Ordinary Stock held indirectly, noted as “By Wife”
Indirect holdings by personal revocable trust 26,033 shares Class A Ordinary Stock held indirectly through a Personal Revocable Trust
Class A Ordinary Stock financial
“reported purchases of Class A Ordinary Stock on September 2, 2026”
weighted average price financial
“The price reported is a weighted average price. Shares were purchased”
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Family Partnership financial
“indirect ownership noted as By Family Partnership for the purchases”
indirect ownership financial
“shares reported as indirect ownership By Wife and Personal Revocable Trust”
Personal Revocable Trust financial
“indirect holdings described as held by a Personal Revocable Trust”
FAQ
What insider transactions did AON director Lester B. Knight report on this Form 4?
He reported six open-market purchases of Aon plc Class A Ordinary Stock on September 2, 2026 through a family partnership, totaling 20,000 shares at weighted-average prices in the mid-$320s to around $331 per share.
What are Lester B. Knight’s reported direct holdings of AON after these transactions?
He is reported as holding 5,227 shares of Aon plc Class A Ordinary Stock directly as of September 2, 2026, separate from his indirect holdings through related parties and entities.
What indirect AON holdings does Lester B. Knight report on this Form 4?
He reports 124,604 shares held indirectly “By Wife” and 26,033 shares held indirectly through a Personal Revocable Trust, in addition to the shares held through the family partnership that executed the reported purchases.
Does this Form 4 show any sales or derivative transactions in AON by Lester B. Knight?
No. The filing shows only purchases of Class A Ordinary Stock totaling 20,000 shares and no reported sales or derivative transactions such as option exercises, conversions, or gifts.
AI-generated analysis. How Rhea-AI works. Not financial advice.
See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
SEC Form 4
| FORM 4 | UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 |
|
|||||||||||||||
| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). | |||||||||||||||||
| Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. | |||||||||||||||||
| 1. Name and Address of Reporting Person*
(Street) (Country) |
2. Issuer Name and Ticker or Trading Symbol Aon plc [ AON ] |
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)
|
||||||||||||
| 2a. Foreign Trading Symbol |
||||||||||||||
| 3. Date of Earliest Transaction (Month/Day/Year) 09/02/2026 |
6. Individual or Joint/Group Filing (Check Applicable Line)
|
|||||||||||||
| 4. If Amendment, Date of Original Filed (Month/Day/Year) |
| Table I – Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1. Title of Security (Instr. 3) | 2. Transaction Date (Month/Day/Year) | 2A. Deemed Execution Date, if any (Month/Day/Year) | 3. Transaction Code (Instr. 8) | 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) | 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) | 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 7. Nature of Indirect Beneficial Ownership (Instr. 4) | |||
| Code | V | Amount | (A) or (D) | Price | ||||||
| Class A Ordinary Stock | 09/02/2026 | P | 1,739 | A | $325.63 | 144,739 | I | By Family Partnership | ||
| Class A Ordinary Stock | 09/02/2026 | P | 5,097 | A | $326.53 | 149,836 | I | By Family Partnership | ||
| Class A Ordinary Stock | 09/02/2026 | P | 7,212 | A | $327.52 | 157,048 | I | By Family Partnership | ||
| Class A Ordinary Stock | 09/02/2026 | P | 4,145 | A | $328.34 | 161,193 | I | By Family Partnership | ||
| Class A Ordinary Stock | 09/02/2026 | P | 1,440 | A | $329.69 | 162,633 | I | By Family Partnership | ||
| Class A Ordinary Stock | 09/02/2026 | P | 367 | A | $330.51 | 163,000 | I | By Family Partnership | ||
| Class A Ordinary Stock | 5,227 | D | ||||||||
| Class A Ordinary Stock | 124,604 | I | By Wife | |||||||
| Class A Ordinary Stock | 26,033 | I | Personal Revocable Trust | |||||||
| Table II – Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Title of Derivative Security (Instr. 3) | 2. Conversion or Exercise Price of Derivative Security | 3. Transaction Date (Month/Day/Year) | 3A. Deemed Execution Date, if any (Month/Day/Year) | 4. Transaction Code (Instr. 8) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) | 6. Date Exercisable and Expiration Date (Month/Day/Year) | 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) | 8. Price of Derivative Security (Instr. 5) | 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) | 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 11. Nature of Indirect Beneficial Ownership (Instr. 4) | ||||
| Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | ||||||||
| Explanation of Responses: |
| /s/ Colby Alexis – Colby Alexis pursuant to a power of attorney from Lester Knight | 09/03/2026 | |
| ** Signature of Reporting Person | Date | |
| Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. | ||
| * If the form is filed by more than one reporting person, see Instruction 4 (b)(v). | ||
| ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). | ||
| Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. | ||
| Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. | ||
| * Form 4: SEC 1474 (03-26) | ||
