VANGUARD GROUP INC: ATMU position timeline

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

VANGUARD GROUP INC held 8,921,715 ATMU 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 8,921,715 shares
Change vs previous 13F +985,993 shares
0.01% of the 13F portfolio, value $454,918,248.
13F-HR 0002100121-26-001018 filed by VANGUARD PORTFOLIO 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: 583,865 shares
- Vanguard Investments Australia, Ltd.: 21,875 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 61,410 shares
- Vanguard Personalized Indexing Management, LLC: 6,208 shares
- Vanguard Global Advisers, LLC: 33,742 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 3,609,746 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 4,604,869 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F/A 7,935,722 shares
Change vs previous 13F +93,529 shares
0.01% of the 13F portfolio, value $450,510,937.
13F-HR 0002100121-26-000861 filed by VANGUARD PORTFOLIO MANAGEMENT LLC
Filed 2026-05-08 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- VANGUARD FIDUCIARY TRUST CO: 564,188 shares
- Vanguard Investments Australia, Ltd.: 19,335 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 56,038 shares
- Vanguard Personalized Indexing Management, LLC: 4,885 shares
- Vanguard Global Advisers, LLC: 35,320 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 3,566,486 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 3,689,470 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 7,842,193 shares
Change vs previous 13F -132,250 shares
0.01% of the 13F portfolio, value $407,088,239.
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
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 7,974,443 shares
Change vs previous 13F -170,693 shares
0.01% of the 13F portfolio, value $359,567,634.
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
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 8,145,136 shares
Change vs previous 13F -24,426 shares
<0.01% of the 13F portfolio, value $296,645,854.
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
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 8,169,562 shares
Change vs previous 13F -139,808 shares
0.01% of the 13F portfolio, value $300,068,012.
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
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 8,309,370 shares
Change vs previous 13F -64,878 shares
0.01% of the 13F portfolio, value $325,561,116.
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
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 8,374,248 shares
Change vs previous 13F not available
0.01% of the 13F portfolio, value $314,285,527.
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
Acceptance time not in the bulk data set (spec §4.2).