VANGUARD GROUP INC: MRK position timeline

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

VANGUARD GROUP INC held 255,739,722 MRK 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 255,739,722 shares
Change vs previous 13F +1,232,780 shares
0.42% of the 13F portfolio, value $32,862,554,279.
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: 13,869,309 shares
- VANGUARD ADVISERS INC: 0 shares
- Vanguard Investments Australia, Ltd.: 1,263,127 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 5,593,255 shares
- Vanguard Personalized Indexing Management, LLC: 425,518 shares
- Vanguard Global Advisers, LLC: 5,512,538 shares
- Vanguard National Trust Co: 13,832 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 161,323,174 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 67,738,969 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F/A 254,506,942 shares
Change vs previous 13F -201,707 shares
0.45% of the 13F portfolio, value $30,614,640,053.
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: 13,964,179 shares
- VANGUARD ADVISERS INC: 45 shares
- Vanguard Investments Australia, Ltd.: 1,238,154 shares
- VANGUARD ASSET MANAGEMENT, Ltd: 5,003,623 shares
- Vanguard Personalized Indexing Management, LLC: 409,858 shares
- Vanguard Global Advisers, LLC: 5,585,694 shares
- Vanguard National Trust Co: 13,460 shares
- VANGUARD CAPITAL MANAGEMENT LLC: 160,987,624 shares
- VANGUARD PORTFOLIO MANAGEMENT LLC: 67,304,305 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 254,708,649 shares
Change vs previous 13F +2,251,968 shares
0.39% of the 13F portfolio, value $26,810,632,393.
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: 254,322,763 shares
- Vanguard Personalized Indexing Management, LLC: 385,886 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 252,456,681 shares
Change vs previous 13F -780,375 shares
0.32% of the 13F portfolio, value $21,188,703,564.
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: 252,136,910 shares
- Vanguard Personalized Indexing Management, LLC: 319,771 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 253,237,056 shares
Change vs previous 13F +427,529 shares
0.32% of the 13F portfolio, value $20,046,258,337.
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: 252,914,426 shares
- Vanguard Personalized Indexing Management, LLC: 322,630 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 252,809,527 shares
Change vs previous 13F +1,420,176 shares
0.41% of the 13F portfolio, value $22,692,183,115.
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: 252,513,381 shares
- Vanguard Personalized Indexing Management, LLC: 296,146 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 251,389,351 shares
Change vs previous 13F +1,317,860 shares
0.44% of the 13F portfolio, value $25,008,212,632.
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: 251,096,107 shares
- Vanguard Personalized Indexing Management, LLC: 293,244 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 250,071,491 shares
Change vs previous 13F not available
0.51% of the 13F portfolio, value $28,398,118,441.
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: 249,803,915 shares
- Vanguard Personalized Indexing Management, LLC: 267,576 shares
Acceptance time not in the bulk data set (spec §4.2).