Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionHudson Value Partners, LLC
Latest Disclosed Ownership59,197 shares
Latest Disclosed Value $ 7,120,782
Hudson Value Partners, LLC reports 1.47% increase in ownership of MRK / Merck & Co., Inc.

On April 14, 2026 - Hudson Value Partners, LLC filed a 13F-HR form disclosing ownership of 59,197 shares of Merck & Co., Inc. (MX:MRK) valued at $7,120,782 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 58,337 shares of Merck & Co., Inc.. This represents a change in shares of 1.47% 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)
2026-04-14 2026-03-31 13F MERCK & CO INC COM Stock 58933Y105 59,197 860 1.47 7,121 15.21 2.1250
2026-01-28 2025-12-31 13F MERCK & CO INC COM Stock 58933Y105 58,337 -494 -0.84 6,180 25.18 1.8402
2025-10-30 2025-09-30 13F MERCK & CO INC COM Stock 58933Y105 58,831 -2,852 -4.62 4,938 1.13 1.5289
2025-07-18 2025-06-30 13F MERCK & CO INC COM Stock 58933Y105 61,683 -21,628 -25.96 4,883 -34.71 1.6847
2025-04-22 2025-03-31 13F MERCK & CO INC COM Stock 58933Y105 83,311 37,347 81.25 7,478 63.54 2.8102
2025-02-03 2024-12-31 13F MERCK & CO INC COM Stock 58933Y105 45,964 -2,660 -5.47 4,572 -17.19 1.7333
2024-10-31 2024-09-30 13F MERCK & CO INC COM Stock 58933Y105 48,624 4,363 9.86 5,522 0.77 2.1453
2024-07-29 2024-06-30 13F MERCK & CO INC COM Stock 58933Y105 44,261 -175 -0.39 5,480 -6.55 2.3166
2024-05-08 2024-03-31 13F MERCK & CO INC COM Stock 58933Y105 44,436 -53 -0.12 5,863 20.89 2.4907
2024-02-12 2023-12-31 13F MERCK & CO INC COM Stock 58933Y105 44,489 1,794 4.20 4,850 10.35 2.2553
2023-11-02 2023-09-30 13F MERCK & CO INC COM Stock 58933Y105 42,695 351 0.83 4,395 -9.99 2.3080
2023-08-02 2023-06-30 13F MERCK & CO INC COM Stock 58933Y105 42,344 1,248 3.04 4,883 11.69 2.4957
2023-05-09 2023-03-31 13F MERCK & CO INC COM Stock 58933Y105 41,096 60 0.15 4,372 -3.95 2.4873
2023-01-30 2022-12-31 13F MERCK & CO INC COM Stock 58933Y105 41,036 353 0.87 4,553 29.91 2.7968
2022-11-08 2022-09-30 13F MERCK & CO INC COM Stock 58933Y105 40,683 55 0.14 3,504 -5.40 2.3589
2022-07-29 2022-06-30 13F MERCK & CO INC COM Stock 58933Y105 40,628 9,146 29.05 3,704 43.40 2.3502
2022-04-14 2022-03-31 13F MERCK & CO INC COM Stock 58933Y105 31,482 579 1.87 2,583 9.03 1.3290
2022-01-19 2021-12-31 13F MERCK & CO INC COM Stock 58933Y105 30,903 3,163 11.40 2,369 13.68 1.1488
2021-10-29 2021-09-30 13F MERCK & CO INC COM Stock 58933Y105 27,740 330 1.20 2,084 -2.25 1.1470
2021-07-09 2021-06-30 13F MERCK & CO INC COM Stock 58933Y105 27,410 2,538 10.20 2,132 11.22 1.1774
2021-04-19 2021-03-31 13F MERCK & CO. INC COM COM 58933Y105 24,872 6,293 33.87 1,917 28.06 1.1575
2021-02-18 2020-12-31 13F MERCK & CO. INC COM Stock 58933Y105 18,579 18,579 1,497 1.0035
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.