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THORNBURG INVESTMENT MANAGEMENT INC

Position in MRK — Merck & Co., Inc.

CIK 1145020 SANTA FE, NM

Position in MRK

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$486,754,916
+$38,232,841 QoQ
Shares Held
3,787,976
+1.6% QoQ
Ownership
0.154%
of shares outstanding
% of Portfolio
4.82%
of 13F equity value
Holder Rank
#68
of 3,769 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

THORNBURG INVESTMENT MANAGEMENT INC holds $1,317,069,132 across 7 Drug Manufacturers - General names. MRK ranks #2 (37.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MRK
Merck & Co., Inc.
This page
3,787,976 $486,754,916

All Filings in MRK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $486,754,916 3,787,976
2026-03-31 $448,522,075 3,728,673
2025-12-31 $392,480,119 3,728,673
2025-09-30 $295,486,559 3,520,631
2025-06-30 $374,398,381 4,729,641
2025-03-31 $277,071,706 3,086,806
2024-12-31 $186,662,680 1,876,384
2024-09-30 $213,082,167 1,876,384
2024-06-30 $231,660,007 1,871,244
2024-03-31 $246,910,645 1,871,244
2023-12-31 $219,738,640 2,015,581
2023-09-30 $207,558,627 2,016,111
2023-06-30 $171,523,196 1,486,465
2023-03-31 $160,464,419 1,508,266
2022-12-31 $173,092,429 1,560,094
2022-09-30 $136,963,525 1,590,380
2022-06-30 $167,497,524 1,837,200
2022-03-31 $200,359,618 2,441,921
2021-12-31 $175,650,679 2,291,893
2021-09-30 $167,163,989 2,225,589
2021-06-30 $159,521,357 2,051,194
2021-03-31 $140,903,250 1,827,775
2020-12-31 $147,131,876 1,798,679
2020-09-30 $174,901,234 2,108,513
2020-06-30 $186,611,909 2,413,188
2020-03-31 $285,788,971 3,714,441