默克公司
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSepio Capital, LP
Latest Disclosed Ownership12,866 shares
Latest Disclosed Value $ 1,547,657
Sepio Capital, LP reports 7.57% decrease in ownership of MRK / Merck & Co., Inc.

On May 13, 2026 - Sepio Capital, LP filed a 13F-HR form disclosing ownership of 12,866 shares of Merck & Co., Inc. (MX:MRK) valued at $1,547,657 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 13,920 shares of Merck & Co., Inc.. This represents a change in shares of -7.57% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F MERCK COM 58933Y105 12,866 -1,054 -7.57 1,548 5.60 0.0840
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 13,920 7,250 108.70 1,465 162.08 0.0802
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 6,670 6,670 560 0.0331
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 0 -26,569 -100.00 0 -100.00
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 26,569 -1,008 -3.66 2,643 -15.59 0.2115
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 27,577 -1,311 -4.54 3,132 -12.44 0.2438
2024-08-15 2024-06-30 13F MERCK COM 58933Y105 28,888 -4,153 -12.57 3,576 -17.96 0.3278
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 33,041 -4,044 -10.90 4,360 7.84 0.3740
2024-02-09 2023-12-31 13F MERCK COM 58933Y105 37,085 -7,392 -16.62 4,043 -11.71 0.3397
2023-11-08 2023-09-30 13F MERCK COM 58933Y105 44,477 -6,361 -12.51 4,579 -21.96 0.3955
2023-08-08 2023-06-30 13F MERCK COM 58933Y105 50,838 -996 -1.92 5,866 6.38 0.4763
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 51,834 -2,754 -5.05 5,515 -8.95 0.5086
2023-02-03 2022-12-31 13F MERCK COM 58933Y105 54,588 -3,792 -6.50 6,057 20.45 0.5233
2022-10-28 2022-09-30 13F MERCK COM 58933Y105 58,380 -1,484 -2.48 5,028 -7.88 0.4991
2022-07-26 2022-06-30 13F MERCK COM 58933Y105 59,864 -327 -0.54 5,458 10.51 0.5483
2022-05-09 2022-03-31 13F MERCK COM 58933Y105 60,191 43 0.07 4,939 7.14 0.4332
2022-01-25 2021-12-31 13F MERCK COM 58933Y105 60,148 1,972 3.39 4,610 5.49 0.3405
2021-11-03 2021-09-30 13F MERCK COM 58933Y105 58,176 2,226 3.98 4,370 0.44 0.3602
2021-07-29 2021-06-30 13F/A-1 MERCK COM 58933Y105 55,950 -6,236 -10.03 4,351 -9.24 0.3584
2021-07-26 2021-06-30 13F MERCK COM 58933Y105 55,950 -6,236 4,351 0.3751
2021-05-10 2021-03-31 13F MERCK &CO. COM 58933Y105 62,186 -22,402 -26.48 4,794 -30.71 0.4416
2021-02-10 2020-12-31 13F MERCK &CO. COM 58933Y105 84,588 3,066 3.76 6,919 2.32 0.5972
2020-11-12 2020-09-30 13F MERCK &CO. COM 58933Y105 81,522 -1,914 -2.29 6,762 4.80 0.7343
2020-08-04 2020-06-30 13F MERCK &CO. COM 58933Y105 83,436 -20,817 -19.97 6,452 -19.61 0.7578
2020-04-29 2020-03-31 13F MERCK &CO. COM 58933Y105 104,253 -2,159 -2.03 8,026 -17.07 1.0629
2020-02-06 2019-12-31 13F MERCK COM 58933Y105 106,412 3,962 3.87 9,678 12.22 0.9156
2019-10-25 2019-09-30 13F MERCK COM 58933Y105 102,450 10,473 11.39 8,624 11.83 0.8898
2019-08-08 2019-06-30 13F MERCK COM 58933Y105 91,977 8,253 9.86 7,712 10.76 1.0414
2019-06-21 2019-03-31 13F/A-1 MERCK COM 58933Y105 83,724 -15,621 -15.72 6,963 -8.27 0.9396
2019-05-14 2019-03-31 13F MERCK COM 58933Y105 83,724 -15,621 6,963 1.0296
2019-02-13 2018-12-31 13F MERCK COM 58933Y105 99,345 99,345 7,591 0.5518
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.