Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSystematic Alpha Investments, LLC
Latest Disclosed Ownership410,682 shares
Latest Disclosed Value $ 49,400,940
Systematic Alpha Investments, LLC ownership in MRK / Merck & Co., Inc.

On May 18, 2026 - Systematic Alpha Investments, LLC filed a 13F-HR form disclosing ownership of 410,682 shares of Merck & Co., Inc. (MX:MRK) valued at $49,400,940 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 410,682 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-05-18 2026-03-31 13F Merck and COM 58933Y105 410,682 0 0.00 49,401 14.28 1.7368
2026-02-12 2025-12-31 13F Merck COM 58933Y105 410,682 0 0.00 43,228 25.41 1.3485
2025-11-12 2025-09-30 13F Merck COM 58933Y105 410,682 0 0.00 34,469 6.03 1.1338
2025-08-14 2025-06-30 13F Merck COM 58933Y105 410,682 0 0.00 32,510 -11.81 1.1548
2025-05-16 2025-03-31 13F Merck COM 58933Y105 410,682 0 0.00 36,863 -9.77 1.4082
2025-02-13 2024-12-31 13F Merck COM 58933Y105 410,682 0 0.00 40,855 -12.40 1.5050
2024-11-13 2024-09-30 13F Merck and COM 58933Y105 410,682 0 0.00 46,637 -8.27 1.7041
2024-08-12 2024-06-30 13F Merck COM 58933Y105 410,682 0 0.00 50,842 -6.18 1.9379
2024-05-13 2024-03-31 13F Merck COM 58933Y105 410,682 0 0.00 54,189 21.03 2.1723
2024-02-13 2023-12-31 13F Merck COM 58933Y105 410,682 0 0.00 44,773 5.90 2.0071
2023-11-13 2023-09-30 13F Merck COM 58933Y105 410,682 0 0.00 42,280 -10.78 2.1049
2023-08-08 2023-06-30 13F Merck COM 58933Y105 410,682 0 0.00 47,389 8.46 2.2962
2023-05-15 2023-03-31 13F Merck COM 58933Y105 410,682 0 0.00 43,692 -4.11 2.2968
2023-02-07 2022-12-31 13F Merck COM 58933Y105 410,682 0 0.00 45,565 28.83 2.3091
2022-11-09 2022-09-30 13F MERCK COM 58933Y105 410,682 0 0.00 35,368 -5.54 2.1330
2022-08-18 2022-06-30 13F MERCK COM 58933Y105 410,682 0 0.00 37,442 11.12 2.1203
2022-05-10 2022-03-31 13F MERCK COM 58933Y105 410,682 0 0.00 33,696 7.06 1.6420
2022-02-15 2021-12-31 13F MERCK COM 58933Y105 410,682 0 0.00 31,475 -12.96 1.4622
2021-11-10 2021-09-30 13F Merck SHARE 58933Y105 410,682 0 0.00 36,161 17.11 1.5840
2021-08-12 2021-06-30 13F Merck SHARE 58933Y105 410,682 87,837 27.21 30,879 24.07 1.4025
2021-04-16 2021-03-31 13F Merck SHARE 58933Y105 322,845 53,600 19.91 24,888 13.00 1.5985
2021-04-16 2020-12-31 13F Merck SHARE 58933Y105 269,245 269,245 22,024 2.3987
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.