VANGUARD GROUP INC: AON position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of VANGUARD GROUP INC on AON, newest first. How the timeline and the estimate are built.

VANGUARD GROUP INC held 22,997,271 AON shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

period ended2026-06-30
13F 22,997,271 shares
Change vs previous 13F +2,670,249 shares
0.1% of the 13F portfolio, value $7,627,964,819.
13F-HR 0002100119-26-001527 filed by VANGUARD CAPITAL MANAGEMENT LLC
Filed 2026-08-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
- VANGUARD FIDUCIARY TRUST CO: 1,190,449 shares
- Vanguard Investments Australia, Ltd.: 103,869 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 408,838 shares
- Vanguard Personalized Indexing Management, LLC: 26,534 shares
- Vanguard Global Advisers, LLC: 460,517 shares
- Vanguard National Trust Co: 608 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 13,603,465 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 7,202,991 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F/A 20,327,022 shares
Change vs previous 13F +127,971 shares
0.1% of the 13F portfolio, value $6,561,156,159.
13F-HR/A 0002100119-26-001311 filed by VANGUARD CAPITAL MANAGEMENT LLC
Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- VANGUARD FIDUCIARY TRUST CO: 1,225,563 shares
- Vanguard Investments Australia, Ltd.: 102,047 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 361,858 shares
- Vanguard Personalized Indexing Management, LLC: 27,025 shares
- Vanguard Global Advisers, LLC: 469,130 shares
- Vanguard National Trust Co: 608 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 13,581,756 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 4,559,035 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 20,199,051 shares
Change vs previous 13F +192,095 shares
0.1% of the 13F portfolio, value $7,127,841,117.
13F-HR 0000102909-26-000031 filed by VANGUARD GROUP INC
Filed 2026-01-29 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
- VANGUARD GROUP INC: 20,171,049 shares
- Vanguard Personalized Indexing Management, LLC: 28,002 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 20,006,956 shares
Change vs previous 13F -309,343 shares
0.11% of the 13F portfolio, value $7,134,081,204.
13F-HR 0000102909-25-000353 filed by VANGUARD GROUP INC
Filed 2025-11-07 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
- VANGUARD GROUP INC: 19,979,391 shares
- Vanguard Personalized Indexing Management, LLC: 27,565 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 20,316,299 shares
Change vs previous 13F +516,913 shares
0.12% of the 13F portfolio, value $7,248,043,664.
13F-HR 0001752724-25-185843 filed by VANGUARD GROUP INC
Filed 2025-08-11 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC
- VANGUARD GROUP INC: 20,289,743 shares
- Vanguard Personalized Indexing Management, LLC: 26,556 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 19,799,386 shares
Change vs previous 13F +259,412 shares
0.14% of the 13F portfolio, value $7,901,736,862.
13F-HR 0001752724-25-099331 filed by VANGUARD GROUP INC
Filed 2025-05-09 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC
- VANGUARD GROUP INC: 19,778,451 shares
- Vanguard Personalized Indexing Management, LLC: 20,935 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 19,539,974 shares
Change vs previous 13F +89,562 shares
0.12% of the 13F portfolio, value $7,017,977,285.
13F-HR 0001752724-25-022205 filed by VANGUARD GROUP INC
Filed 2025-02-11 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC
- VANGUARD GROUP INC: 19,519,752 shares
- Vanguard Personalized Indexing Management, LLC: 20,222 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 19,450,412 shares
Change vs previous 13F not available
0.12% of the 13F portfolio, value $6,729,647,917.
13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
Filed 2024-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
- VANGUARD GROUP INC: 19,431,391 shares
- Vanguard Personalized Indexing Management, LLC: 19,021 shares
Acceptance time not in the bulk data set (spec §4.2).