Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionFounders Capital Management
Latest Disclosed Ownership36,752 shares
Latest Disclosed Value $ 4,420,857
Founders Capital Management reports 2.16% increase in ownership of MRK / Merck & Co., Inc.

On April 21, 2026 - Founders Capital Management filed a 13F-HR form disclosing ownership of 36,752 shares of Merck & Co., Inc. (MX:MRK) valued at $4,420,857 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 35,976 shares of Merck & Co., Inc.. This represents a change in shares of 2.16% 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)
2026-04-21 2026-03-31 13F MERCK COM 58933Y105 36,752 776 2.16 4,421 16.75 2.1583
2026-01-15 2025-12-31 13F MERCK COM 58933Y105 35,976 -551 -1.51 3,787 23.52 1.9664
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 36,527 -408 -1.10 3,066 4.86 1.6242
2025-07-18 2025-06-30 13F MERCK COM 58933Y105 36,935 94 0.26 2,924 -11.58 1.7524
2025-04-08 2025-03-31 13F MERCK COM 58933Y105 36,841 -6,979 -15.93 3,307 -24.16 2.1396
2025-01-13 2024-12-31 13F MERCK COM 58933Y105 43,820 -1,462 -3.23 4,359 -15.23 2.7597
2024-10-07 2024-09-30 13F MERCK COM 58933Y105 45,282 728 1.63 5,142 -6.76 3.1311
2024-07-10 2024-06-30 13F MERCK COM 58933Y105 44,554 -371 -0.83 5,516 -6.95 3.5741
2024-04-10 2024-03-31 13F MERCK COM 58933Y105 44,925 -567 -1.25 5,928 19.52 4.0067
2024-01-08 2023-12-31 13F MERCK COM 58933Y105 45,492 -256 -0.56 4,960 5.31 3.6034
2023-10-10 2023-09-30 13F MERCK COM 58933Y105 45,748 -271 -0.59 4,710 -11.32 3.5964
2023-07-07 2023-06-30 13F MERCK COM 58933Y105 46,019 -609 -1.31 5,310 132,650.00 3.8621
2023-04-12 2023-03-31 13F MERCK COM 58933Y105 46,628 -290 -0.62 5 -20.00 3.7937
2023-01-09 2022-12-31 13F MERCK COM 58933Y105 46,918 1 0.00 5 -99.88 3.9121
2022-10-06 2022-09-30 13F MERCK COM 58933Y105 46,917 -344 -0.73 4,040 -6.24 3.2967
2022-07-20 2022-06-30 13F MERCK COM 58933Y105 47,261 22,494 90.82 4,309 127.03 3.3964
2022-04-07 2022-03-31 13F MERCK COM 58933Y105 24,767 0 0.00 1,898 0.00 1.2168
2022-01-21 2021-12-31 13F MERCK COM 58933Y105 24,767 -598 -2.36 1,898 -0.37 1.2168
2021-10-12 2021-09-30 13F MERCK COM 58933Y105 25,365 -2,075 -7.56 1,905 -10.73 1.3059
2021-07-15 2021-06-30 13F MERCK COM 58933Y105 27,440 485 1.80 2,134 2.69 1.3910
2021-06-09 2021-03-31 13F/A-1 MERCK & CO. COM 58933Y105 26,955 -50 -0.19 2,078 -5.93 1.4790
2021-06-07 2021-03-31 13F MERCK & CO. COM 58933Y105 26,955 -50 6 0.0658
2021-01-12 2020-12-31 13F MERCK & CO. COM 58933Y105 27,005 -3,155 -10.46 2,209 -4.83 1.5621
2020-04-22 2020-03-31 13F MERCK & CO. COM 58933Y105 30,160 -1,160 -3.70 2,321 -18.53 2.4072
2020-01-24 2019-12-31 13F MERCK COM 58933Y105 31,320 4,880 18.46 2,849 27.99 2.1562
2019-10-10 2019-09-30 13F MERCK COM 58933Y105 26,440 12,825 94.20 2,226 94.92 1.7805
2019-07-11 2019-06-30 13F MERCK COM 58933Y105 13,615 0 0.00 1,142 0.88 1.0071
2019-04-17 2019-03-31 13F MERCK COM 58933Y105 13,615 0 0.00 1,132 8.85 1.0613
2019-01-14 2018-12-31 13F MERCK COM 58933Y105 13,615 -75 -0.55 1,040 7.11 1.1102
2018-10-05 2018-09-30 13F MERCK COM 58933Y105 13,690 0 0.00 971 16.85 0.8009
2018-07-09 2018-06-30 13F MERCK COM 58933Y105 13,690 1,451 11.86 831 24.59 0.7294
2018-04-09 2018-03-31 13F MERCK COM 58933Y105 12,239 75 0.62 667 -2.49 0.5617
2018-01-22 2017-12-31 13F MERCK COM 58933Y105 12,164 0 0.00 684 -12.20 0.5673
2017-10-17 2017-09-30 13F MERCK COM 58933Y105 12,164 -100 -0.82 779 -0.89 0.6456
2017-07-19 2017-06-30 13F MERCK COM 58933Y105 12,264 -1,450 -10.57 786 -9.76 0.6965
2017-05-09 2017-03-31 13F MERCK COM 58933Y105 13,714 13,714 871 0.7829
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.