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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in MRK — Merck & Co., Inc.

CIK 912938 Boston, MA

Position in MRK

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$32,698,308
-$432,132,060 QoQ
Shares Held
271,829
-93.8% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 38.515022311821035.ToString("F0")% Shared 57.6049648860129.ToString("F0")% None 3.8800128021660676.ToString("F0")%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $7,300,763,534 across 12 Drug Manufacturers - General names. MRK ranks #8 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 MRK
Merck & Co., Inc.
This page
271,829 $32,698,308

All Filings in MRK

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $32,698,308 271,829
2025-12-31 $464,830,368 4,416,021
2025-09-30 $633,589,246 7,549,020
2025-06-30 $607,938,189 7,679,866
2025-03-31 $716,571,400 7,983,193
2024-12-31 $815,505,900 8,197,687
2024-09-30 $975,965,981 8,594,276
2024-06-30 $1,197,396,320 9,672,022
2024-03-31 $1,436,333,145 10,885,435
2023-12-31 $1,245,797,809 11,427,241
2023-09-30 $1,245,890,704 12,101,901
2023-06-30 $2,325,758,142 20,155,630
2023-03-31 $2,408,536,927 22,638,753
2022-12-31 $2,649,733,638 23,882,232
2022-09-30 $2,328,762,906 27,040,907
2022-06-30 $2,527,240,236 27,720,086
2022-03-31 $2,366,670,217 28,844,244
2021-12-31 $2,221,155,492 28,981,674
2021-09-30 $1,915,071,252 25,496,888
2021-06-30 $1,919,907,753 24,686,997
2021-03-31 $1,819,350,796 24,733,151
2020-12-31 $1,769,462,457 22,669,896
2020-09-30 $1,903,884,079 24,053,883
2020-06-30 $1,735,136,307 23,515,092
2020-03-31 $1,229,228,531 16,743,333