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MILLENNIUM MANAGEMENT LLC

Position in MRK — Merck & Co., Inc.

CIK 1273087 NEW YORK, NY

Position in MRK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$237,054,420
-$478,750,526 QoQ
Shares Held
1,970,691
-71.0% QoQ
Ownership
0.080%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Derivatives in MRK

reported options exposure · as of Mar 31, 2026
CallValue
$38,276,278
CallShares
318,200
PutValue
$187,243,414
PutShares
1,556,600

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $2,000,798,301 across 16 Drug Manufacturers - General names. MRK ranks #4 (11.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MRK
Merck & Co., Inc.
This page
1,970,691 $237,054,420

All Filings in MRK

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $38,276,278 318,200
2026-03-31 $187,243,414 1,556,600
2026-03-31 $237,054,420 1,970,691
2025-12-31 $130,627,660 1,241,000
2025-12-31 $43,672,374 414,900
2025-12-31 $715,804,946 6,800,351
2025-09-30 $133,885,136 1,595,200
2025-09-30 $67,488,113 804,100
2025-09-30 $64,069,476 763,368
2025-06-30 $108,338,376 1,368,600
2025-06-30 $78,352,093 989,794
2025-06-30 $65,283,252 824,700
2025-03-31 $134,954,160 1,503,500
2025-03-31 $316,368,275 3,524,602
2025-03-31 $144,028,896 1,604,600
2024-12-31 $62,553,024 628,800
2024-12-31 $78,270,864 786,800
2024-12-31 $356,234,199 3,580,963
2024-09-30 $92,051,736 810,600
2024-09-30 $204,064,594 1,796,976
2024-09-30 $83,988,976 739,600
2024-06-30 $1,186,645,160 9,585,179
2024-06-30 $133,617,340 1,079,300
2024-06-30 $76,768,380 620,100
2024-03-31 $1,328,664,191 10,069,452
2024-03-31 $139,959,365 1,060,700
2024-03-31 $139,194,055 1,054,900
2023-12-31 $82,430,022 756,100
2023-12-31 $659,347,727 6,047,952
2023-12-31 $89,625,342 822,100
2023-09-30 $114,120,075 1,108,500
2023-09-30 $83,296,845 809,100
2023-09-30 $352,137,386 3,420,470
2023-06-30 $97,573,784 845,600
2023-06-30 $90,373,448 783,200
2023-06-30 $5,522,680 47,861
2023-03-31 $27,661,400 260,000
2023-03-31 $38,023,786 357,400
2023-03-31 $3,984,411 37,451
2022-12-31 $88,504,815 797,700
2022-12-31 $152,567,345 1,375,100
2022-12-31 $159,537,445 1,437,922
2022-09-30 $147,446,052 1,712,100
2022-09-30 $115,688,440 1,343,340
2022-09-30 $108,003,092 1,254,100
2022-06-30 $127,154,799 1,394,700
2022-06-30 $164,689,488 1,806,400
2022-06-30 $271,527,417 2,978,254
2022-03-31 $232,374,297 2,832,106
2022-03-31 $122,229,885 1,489,700