Public ownership evidence

Aon plc Class A (AON) Ownership Disclosures

Read AON insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Aon plc Class A: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-04
Trade date
2026-09-02
Reporting owners
KNIGHT LESTER B
Code
P
Shares
367
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-382419
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read AON fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read AON fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-042026-09-02KNIGHT LESTER BP367Not reported
2026-09-042026-09-02KNIGHT LESTER BP1,440Not reported
2026-09-042026-09-02KNIGHT LESTER BP4,145Not reported
2026-09-042026-09-02KNIGHT LESTER BP7,212Not reported
2026-09-042026-09-02KNIGHT LESTER BP5,097Not reported
2026-09-042026-09-02KNIGHT LESTER BP1,739Not reported
2026-07-312026-07-28Zeidel DarrenS475Not reported
2026-07-312026-07-28Zeidel DarrenS725Not reported
2026-07-312026-07-28Zeidel DarrenS700Not reported
2026-07-222026-07-17Zeidel DarrenS675Not reported
2026-07-222026-07-17Zeidel DarrenS650Not reported
2026-07-222026-07-17Zeidel DarrenS625Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Scroll sideways to compare all columns. Select a heading to sort.

Cornerstone Financial Management LLC2026-06-302026-08-29120$39,803None
Cornerstone Financial Management LLC2026-03-312026-08-29106$34,215None
Cornerstone Financial Management LLC2025-12-312026-08-29106$37,405None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-29636$253,702None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-281,394$462,376None
Advisors Asset Management, Inc.2021-12-312026-08-282,228$669,648None
Advisors Asset Management, Inc.2022-12-312026-08-283,258$977,856None
Advisors Asset Management, Inc.2020-06-302026-08-281,495$287,937None
Advisors Asset Management, Inc.2022-06-302026-08-283,021$815,000None
Advisors Asset Management, Inc.2021-09-302026-08-281,588$454,000None
Corient Private Wealth LP2026-06-302026-08-2810,160$3,370,014None
Corient Private Wealth LP2026-06-302026-08-2862,998$20,895,595None
Principia Wealth Advisory, LLC2026-06-302026-08-2719$6,302None
Principia Wealth Advisory, LLC2026-03-312026-08-2713$4,196None
Advisors Asset Management, Inc.2024-03-312026-08-271,939$647,083None
Advisors Asset Management, Inc.2025-03-312026-08-27512$204,334None
Advisors Asset Management, Inc.2022-09-302026-08-273,262$874,000None
Advisors Asset Management, Inc.2020-12-312026-08-271,103$233,000None
Advisors Asset Management, Inc.2022-03-312026-08-272,999$976,564None
Advisors Asset Management, Inc.2023-06-302026-08-273,719$1,283,799None
Advisors Asset Management, Inc.2023-09-302026-08-272,996$971,363None
Advisors Asset Management, Inc.2023-03-312026-08-273,684$1,161,528None
Advisors Asset Management, Inc.2021-03-312026-08-27890$204,798None
Advisors Asset Management, Inc.2021-06-302026-08-27989$236,000None
Advisors Asset Management, Inc.2020-09-302026-08-271,347$277,886None
Advisors Asset Management, Inc.2025-09-302026-08-27424$151,190None
Advisors Asset Management, Inc.2023-12-312026-08-272,751$800,596None
Dakota Wealth Management2025-09-302026-08-271,866$665,254None
Dakota Wealth Management2025-12-312026-08-271,982$699,362None
Dakota Wealth Management2026-03-312026-08-271,019$329,016None
Groupe la Francaise2026-06-302026-08-26327$108,463None
Advisors Asset Management, Inc.2025-06-302026-08-25435$155,191None
CYBER HORNET ETFs LLC2026-06-302026-08-25581$192,712None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25306,798$101,761,829None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25101,761,829$306,798,000None
Advisors Asset Management, Inc.2024-09-302026-08-221,331$460,513None
Advisors Asset Management, Inc.2024-06-302026-08-221,760$516,701None
Advisors Asset Management, Inc.2024-12-312026-08-221,106$397,231None
Advisors Asset Management, Inc.2025-12-312026-08-22379$133,742None
Assenagon Asset Management S.A.2026-06-302026-08-22188,821$62,630,037None
CLIFFORD SWAN INVESTMENT COUNSEL LLC2026-06-302026-08-2125,107$8,327,741None
CLIFFORD SWAN INVESTMENT COUNSEL LLC2026-06-302026-08-213,500$1,160,915None
Kingsview Wealth Management, LLC2026-06-302026-08-202,756$913,986None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2052,099$17,280,735None
Beacon Pointe Advisors, LLC2026-06-302026-08-193,449$1,144,142None
Ensign Peak Advisors, Inc2026-03-312026-08-19223,178$72,037,395None
Ensign Peak Advisors, Inc2025-12-312026-08-19206,485$72,864,427None
Ensign Peak Advisors, Inc2025-09-302026-08-19230,883$82,328,260None
PIN OAK INVESTMENT ADVISORS INC2026-06-302026-08-1945$15,000None
Strive Financial Group ,LLC2026-06-302026-08-1819$6,302None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

Scroll sideways to compare all columns. Select a heading to sort.

Ro Khanna2026-10-082026-09-25sale$1,001 $15,000

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

Aurora · AI research assistant

Try this in Aurora

Edit the request, then open it in Aurora. You choose when to send it.