Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionYousif Capital Management, Llc
Latest Disclosed Ownership245,330 shares
Latest Disclosed Value $ 29,510,746
Yousif Capital Management, Llc reports 3.05% decrease in ownership of MRK / Merck & Co., Inc.

On April 24, 2026 - Yousif Capital Management, Llc filed a 13F-HR form disclosing ownership of 245,330 shares of Merck & Co., Inc. (MX:MRK) valued at $29,510,746 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 253,035 shares of Merck & Co., Inc.. This represents a change in shares of -3.05% 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)
2026-04-24 2026-03-31 13F Merck COM 58933Y105 245,330 -7,705 -3.05 29,511 6.56 0.3465
2026-01-21 2025-12-31 13F Merck COM 58933Y105 253,035 -12,636 -4.76 27,695 24.21 0.3036
2025-10-14 2025-09-30 13F Merck COM 58933Y105 265,671 -11,974 -4.31 22,298 1.45 0.2380
2025-07-25 2025-06-30 13F Merck COM 58933Y105 277,645 -2,604 -0.93 21,978 -12.63 0.2369
2025-04-14 2025-03-31 13F Merck COM 58933Y105 280,249 -8,292 -2.87 25,155 -12.36 0.2920
2025-01-27 2024-12-31 13F Merck COM 58933Y105 288,541 -7,082 -2.40 28,704 -14.50 0.3172
2024-10-30 2024-09-30 13F Merck COM 58933Y105 295,623 -9,327 -3.06 33,571 -11.08 0.3640
2024-07-31 2024-06-30 13F Merck COM 58933Y105 304,950 -5,145 -1.66 37,753 -7.74 0.4271
2024-04-26 2024-03-31 13F Merck COM 58933Y105 310,095 -7,371 -2.32 40,917 18.22 0.4536
2024-02-01 2023-12-31 13F Merck COM 58933Y105 317,466 -14,937 -4.49 34,610 1.14 0.4076
2023-10-30 2023-09-30 13F Merck COM 58933Y105 332,403 -11,937 -3.47 34,221 -13.88 0.4353
2023-08-02 2023-06-30 13F Merck COM 58933Y105 344,340 9,903 2.96 39,733 11.67 0.4832
2023-05-02 2023-03-31 13F Merck COM 58933Y105 334,437 -14,527 -4.16 35,581 -8.10 0.4630
2023-01-09 2022-12-31 13F/A-1 Merck COM 58933Y105 348,964 14,426 4.31 38,718 34.39 0.5081
2023-01-09 2022-12-31 13F Merck COM 58933Y105 348,964 14,426 38,718 0.0005
2022-11-04 2022-09-30 13F Merck COM 58933Y105 334,538 -19,113 -5.40 28,810 -10.64 0.4093
2022-08-01 2022-06-30 13F Merck COM 58933Y105 353,651 -15,741 -4.26 32,242 6.38 0.4245
2022-05-12 2022-03-31 13F Merck COM 58933Y105 369,392 22,774 6.57 30,309 14.09 0.3291
2022-01-31 2021-12-31 13F Merck COM 58933Y105 346,618 346,618 26,565 0.2749
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.