MASSACHUSETTS FINANCIAL SERVICES CO /MA/: MRK position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MASSACHUSETTS FINANCIAL SERVICES CO /MA/ on MRK, newest first. How the timeline and the estimate are built.
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ held 256,668 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-03.
the latest 13F is the newest step
- period ended2026-06-3013F 256,668 sharesChange vs previous 13F -15,161 shares
0.01% of the 13F portfolio, value $36,394,006.
13F-HR 0000912938-26-000775 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 271,829 sharesChange vs previous 13F -4,144,192 shares
0.01% of the 13F portfolio, value $35,638,856.
13F-HR 0000912938-26-000604 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 4,416,021 sharesChange vs previous 13F -3,132,999 shares
0.15% of the 13F portfolio, value $464,830,370.
13F-HR 0000912938-26-000025 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 7,549,020 sharesChange vs previous 13F -130,846 shares
0.2% of the 13F portfolio, value $633,589,249.
13F-HR 0000912938-25-000200 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 7,679,866 sharesChange vs previous 13F -303,327 shares
0.19% of the 13F portfolio, value $607,938,193.
13F-HR 0000912938-25-000121 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 7,983,193 sharesChange vs previous 13F -214,494 shares
0.24% of the 13F portfolio, value $716,571,404.
13F-HR 0000912938-25-000044 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 8,197,687 sharesChange vs previous 13F -396,589 shares
0.26% of the 13F portfolio, value $815,505,902.
13F-HR 0000912938-25-000009 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 8,594,276 sharesChange vs previous 13F not available
0.29% of the 13F portfolio, value $975,965,982.
13F-HR 0000912938-24-000298 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).