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WELLINGTON MANAGEMENT GROUP LLP

Position in MRK — Merck & Co., Inc.

CIK 902219 Boston, MA

Position in MRK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$11,083,032,864
+$940,785,007 QoQ
Shares Held
86,249,283
+2.3% QoQ
Ownership
3.50%
of shares outstanding
% of Portfolio
1.93%
of 13F equity value
Holder Rank
#4
of 3,778 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 96% None 4%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $41,461,553,100 across 12 Drug Manufacturers - General names. MRK ranks #2 (26.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MRK
Merck & Co., Inc.
This page
86,249,283 $11,083,032,864

All Filings in MRK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $11,083,032,864 86,249,283
2026-03-31 $10,142,247,857 84,314,971
2025-12-31 $9,098,196,304 86,435,458
2025-09-30 $6,318,175,195 75,279,104
2025-06-30 $6,083,959,902 76,856,492
2025-03-31 $7,330,667,869 81,669,651
2024-12-31 $8,032,217,139 80,742,030
2024-09-30 $8,608,913,529 75,809,383
2024-06-30 $8,973,268,996 72,481,979
2024-03-31 $11,393,652,772 86,348,259
2023-12-31 $9,331,675,807 85,595,999
2023-09-30 $8,487,472,461 82,442,666
2023-06-30 $8,913,387,319 77,245,752
2023-03-31 $7,294,504,486 68,563,817
2022-12-31 $6,880,771,833 62,016,871
2022-09-30 $3,458,335,650 40,157,172
2022-06-30 $3,712,754,834 40,723,427
2022-03-31 $3,749,759,168 45,700,904
2021-12-31 $3,822,290,321 49,873,308
2021-09-30 $3,722,382,345 49,559,078
2021-06-30 $3,764,599,709 48,406,837
2021-03-31 $3,052,502,380 39,596,585
2020-12-31 $3,326,147,565 40,661,969
2020-09-30 $3,710,302,624 44,729,366
2020-06-30 $3,273,801,381 42,335,445
2020-03-31 $3,682,920,454 47,867,455