Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionMagnus Financial Group LLC
Latest Disclosed Ownership7,376 shares
Latest Disclosed Value $ 887,259
Magnus Financial Group LLC reports 22.22% decrease in ownership of MRK / Merck & Co., Inc.

On April 10, 2026 - Magnus Financial Group LLC filed a 13F-HR form disclosing ownership of 7,376 shares of Merck & Co., Inc. (MX:MRK) valued at $887,259 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 9,483 shares of Merck & Co., Inc.. This represents a change in shares of -22.22% 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)
2026-04-10 2026-03-31 13F MERCK COM 58933Y105 7,376 -2,107 -22.22 887 -11.12 0.0720
2026-01-07 2025-12-31 13F MERCK COM 58933Y105 9,483 1,704 21.91 998 53.07 0.0762
2025-10-28 2025-09-30 13F MERCK COM 58933Y105 7,779 821 11.80 653 18.55 0.0515
2025-07-16 2025-06-30 13F MERCK COM 58933Y105 6,958 -84 -1.19 551 -12.97 0.0483
2025-04-11 2025-03-31 13F MERCK COM 58933Y105 7,042 83 1.19 632 -8.67 0.0612
2025-01-17 2024-12-31 13F MERCK COM 58933Y105 6,959 -387 -5.27 692 -17.03 0.0668
2024-10-15 2024-09-30 13F MERCK COM 58933Y105 7,346 331 4.72 834 -3.92 0.0848
2024-08-02 2024-06-30 13F MERCK COM 58933Y105 7,015 -170 -2.37 869 -8.44 0.0976
2024-05-03 2024-03-31 13F MERCK COM 58933Y105 7,185 450 6.68 948 29.16 0.1125
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 6,735 -368 -5.18 734 0.41 0.0962
2023-10-10 2023-09-30 13F MERCK COM 58933Y105 7,103 -556 -7.26 731 -17.21 0.1065
2023-07-19 2023-06-30 13F MERCK COM 58933Y105 7,659 -102 -1.31 884 7.03 0.1258
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 7,761 392 5.32 826 0.98 0.1257
2023-02-02 2022-12-31 13F MERCK COM 58933Y105 7,369 535 7.83 818 38.71 0.1331
2022-11-09 2022-09-30 13F MERCK COM 58933Y105 6,834 448 7.02 589 1.20 0.1125
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 6,386 491 8.33 582 20.25 0.1070
2022-05-12 2022-03-31 13F MERCK COM 58933Y105 5,895 972 19.74 484 28.38 0.0809
2022-02-10 2021-12-31 13F MERCK COM 58933Y105 4,923 172 3.62 377 5.60 0.0716
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 4,751 77 1.65 357 -1.92 0.0756
2021-08-06 2021-06-30 13F MERCK COM 58933Y105 4,674 452 10.71 364 12.00 0.0793
2021-05-05 2021-03-31 13F MERCK & CO. COM 58933Y105 4,222 -12,237 -74.35 325 -75.85 0.0785
2021-02-05 2020-12-31 13F MERCK & CO. COM 58933Y105 16,459 887 5.70 1,346 4.18 0.1336
2020-11-05 2020-09-30 13F MERCK & CO. COM 58933Y105 15,572 -5,023 -24.39 1,292 -18.90 0.1504
2020-08-11 2020-06-30 13F MERCK & CO. COM 58933Y105 20,595 -837 -3.91 1,593 -3.40 0.1766
2020-05-11 2020-03-31 13F MERCK & CO. COM 58933Y105 21,432 8,007 59.64 1,649 35.05 0.2248
2020-01-28 2019-12-31 13F MERCK COM 58933Y105 13,425 50 0.37 1,221 8.44 0.1747
2019-11-08 2019-09-30 13F MERCK COM 58933Y105 13,375 49 0.37 1,126 0.81 0.2112
2019-08-05 2019-06-30 13F MERCK COM 58933Y105 13,326 336 2.59 1,117 3.43 0.2152
2019-05-09 2019-03-31 13F MERCK COM 58933Y105 12,990 2,483 23.63 1,080 34.50 0.2198
2019-02-13 2018-12-31 13F MERCK COM 58933Y105 10,507 10,507 803 0.2134
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.