Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionOmnia Family Wealth, LLC
Latest Disclosed Ownership4,298 shares
Latest Disclosed Value $ 520,660
Omnia Family Wealth, LLC reports 17.63% decrease in ownership of MRK / Merck & Co., Inc.

On May 7, 2026 - Omnia Family Wealth, LLC filed a 13F-HR form disclosing ownership of 4,298 shares of Merck & Co., Inc. (MX:MRK) valued at $520,660 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 5,218 shares of Merck & Co., Inc.. This represents a change in shares of -17.63% 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)
2026-05-07 2026-03-31 13F MERCK COM 58933Y105 4,298 -920 -17.63 521 -5.97 0.1641
2026-01-16 2025-12-31 13F MERCK COM 58933Y105 5,218 0 0.00 554 25.11 0.1635
2025-11-06 2025-09-30 13F MERCK COM 58933Y105 5,218 1,012 24.06 442 31.55 0.1436
2025-07-28 2025-06-30 13F MERCK COM 58933Y105 4,206 228 5.73 336 -6.67 0.1219
2025-04-23 2025-03-31 13F MERCK COM 58933Y105 3,978 -169 -4.08 360 -13.25 0.1507
2025-02-27 2024-12-31 13F/A-1 MERCK COM 58933Y105 4,147 575 16.10 416 1.72 0.1718
2025-02-06 2024-12-31 13F MERCK COM 58933Y105 3,572 0 408 0.1750
2024-11-06 2024-09-30 13F MERCK COM 58933Y105 3,572 -182 -4.85 408 -12.63 0.1750
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 3,754 256 7.32 468 0.65 0.1980
2024-04-30 2024-03-31 13F MERCK COM 58933Y105 3,498 45 1.30 464 22.43 0.2175
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 3,453 0 0.00 379 5.87 0.1943
2023-11-01 2023-09-30 13F MERCK COM 58933Y105 3,453 0 0.00 358 -10.50 0.2219
2023-07-31 2023-06-30 13F MERCK COM 58933Y105 3,453 0 0.00 401 8.40 0.2724
2023-05-11 2023-03-31 13F MERCK COM 58933Y105 3,453 -350 -9.20 370 -12.97 0.2845
2023-01-31 2022-12-31 13F Merck & Co Inc New Com Equity 58933Y105 3,803 0 0.00 425 28.48 0.3437
2022-10-27 2022-09-30 13F MERCK COM 58933Y105 3,803 0 0.00 330 -5.44 0.2712
2022-07-22 2022-06-30 13F Merck & Co Inc New Com Equity 58933Y105 3,803 0 0.00 349 10.79 0.2569
2022-05-06 2022-03-31 13F Merck & Co Inc New Com Equity 58933Y105 3,803 0 0.00 315 7.14 0.2092
2022-02-04 2021-12-31 13F Merck & Co Inc New Com COM 58933Y105 3,803 0 0.00 294 2.08 0.1788
2021-11-03 2021-09-30 13F Merck & Co Inc New Com Equity 58933Y105 3,803 -62 -1.60 288 -5.26 0.1981
2021-08-03 2021-06-30 13F Merck & Co Inc New Com Equity 58933Y105 3,865 -2,002 -34.12 304 -33.33 0.1944
2021-05-12 2021-03-31 13F Merck & Co Inc New Com Equity 58933Y105 5,867 -3,636 -38.26 456 -99.94 0.3382
2021-02-08 2020-12-31 13F Merck & Co Inc New Com Equity 58933Y105 9,503 -150 -1.55 783,580 96,997.89 0.7151
2020-10-28 2020-09-30 13F Merck & Co Inc New Com Equity 58933Y105 9,653 -162 -1.65 807 5.63 0.7699
2020-08-04 2020-06-30 13F Merck & Co Inc New Com Equity 58933Y105 9,815 0 0.00 765 0.39 0.7501
2020-05-05 2020-03-31 13F Merck & Co Inc New Com Equity 58933Y105 9,815 -490 -4.75 761 -19.39 0.7915
2020-02-05 2019-12-31 13F/A-1 Merck & Co Inc New Com Equity 58933Y105 10,305 2,034 24.59 944 34.66 0.4328
2020-02-05 2019-12-31 13F Merck & Co Inc New Com Equity 58933Y105 10,305 944
2019-11-12 2019-09-30 13F Merck & Co Inc New Com Equity 58933Y105 8,271 30 0.36 701 0.72 0.5116
2019-08-07 2019-06-30 13F Merck & Co Inc New Com Equity 58933Y105 8,241 0 0.00 696 0.87 0.3511
2019-05-15 2019-03-31 13F Merck & Co Inc New Com Equity 58933Y105 8,241 0 0.00 690 8.83 0.3402
2019-02-26 2018-12-31 13F Merck & Co Inc New Com Equity 58933Y105 8,241 66 0.81 634 8.56 0.3421
2018-11-14 2018-09-30 13F Merck & Co Inc New Com Equity 58933Y105 8,175 0 0.00 584 16.80 0.2675
2018-08-10 2018-06-30 13F Merck & Co Inc New Com Equity 58933Y105 8,175 -55 -0.67 500 10.62 0.2338
2018-05-11 2018-03-31 13F Merck & Co Inc New Com Equity 58933Y105 8,230 -154 -1.84 452 -5.04 0.2075
2018-02-02 2017-12-31 13F Merck & Co Inc New Com Equity 58933Y105 8,384 83 1.00 476 -11.03 0.2179
2017-11-14 2017-09-30 13F Merck & Co Inc New Com Equity 58933Y105 8,301 -288 -3.35 535 -3.43 0.2594
2017-08-10 2017-06-30 13F Merck & Co Inc New Com Equity 58933Y105 8,589 -1,977 -18.71 554 -18.05 0.2652
2017-05-15 2017-03-31 13F/A-1 Merck & Co Inc New Com Equity 58933Y105 10,566 16 0.15 676 7.99 0.3279
2017-05-05 2017-03-31 13F Merck & Co Inc New Com Equity 58933Y105 10,550 0 626 310,406.5532
2017-04-03 2016-12-31 13F Merck & Co Inc New Com Equity 58933Y105 10,550 10,550 626 0.3104
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.