Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionCooper Financial Group
Latest Disclosed Ownership8,518 shares
Latest Disclosed Value $ 1,024,618
Cooper Financial Group reports 30.24% increase in ownership of MRK / Merck & Co., Inc.

On April 7, 2026 - Cooper Financial Group filed a 13F-HR form disclosing ownership of 8,518 shares of Merck & Co., Inc. (MX:MRK) valued at $1,024,618 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 6,540 shares of Merck & Co., Inc.. This represents a change in shares of 30.24% 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)
2026-04-07 2026-03-31 13F MERCK COM 58933Y105 8,518 1,978 30.24 1,025 48.84 0.1035
2026-01-08 2025-12-31 13F MERCK COM 58933Y105 6,540 649 11.02 688 39.27 0.0732
2025-10-07 2025-09-30 13F MERCK COM 58933Y105 5,891 1,253 27.02 494 34.60 0.0547
2025-07-18 2025-06-30 13F MERCK COM 58933Y105 4,638 -1,714 -26.98 367 -35.61 0.0432
2025-05-12 2025-03-31 13F MERCK COM 58933Y105 6,352 195 3.17 570 -6.86 0.0751
2025-01-13 2024-12-31 13F MERCK COM 58933Y105 6,157 909 17.32 613 2.86 0.0738
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 5,248 -2,692 -33.90 596 -39.41 0.0774
2024-07-15 2024-06-30 13F MERCK COM 58933Y105 7,940 270 3.52 983 -2.96 0.1445
2024-04-11 2024-03-31 13F MERCK COM 58933Y105 7,670 440 6.09 1,012 28.43 0.1663
2024-01-16 2023-12-31 13F MERCK COM 58933Y105 7,230 119 1.67 788 7.65 0.1433
2023-10-13 2023-09-30 13F MERCK COM 58933Y105 7,111 -269 -3.64 732 -13.98 0.1760
2023-07-07 2023-06-30 13F MERCK COM 58933Y105 7,380 -139 -1.85 852 6.51 0.2111
2023-05-11 2023-03-31 13F MERCK COM 58933Y105 7,519 1,178 18.58 800 13.66 0.2156
2023-01-13 2022-12-31 13F MERCK COM 58933Y105 6,341 1,074 20.39 704 54.85 0.2148
2022-10-13 2022-09-30 13F MERCK COM 58933Y105 5,267 717 15.76 454 9.40 0.1634
2022-07-11 2022-06-30 13F MERCK COM 58933Y105 4,550 1,525 50.41 415 67.34 0.1507
2022-04-25 2022-03-31 13F/A-1 MERCK COM 58933Y105 3,025 3,025 248 0.0942
2022-04-12 2022-03-31 13F MERCK & CO. COM 58933Y105 3,025 3,025 248 0.0941
2022-02-10 2021-12-31 13F MERCK COM 58933Y105 0 -3,118 -100.00 0 -100.00
2021-10-06 2021-09-30 13F MERCK COM 58933Y105 3,118 79 2.60 234 -0.85 0.0485
2021-07-12 2021-06-30 13F MERCK COM 58933Y105 3,039 -2,118 -41.07 236 -40.70 0.0480
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 5,157 -4,186 -44.80 398 -47.91 0.0899
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 9,343 5,395 136.65 764 133.64 0.1558
2020-10-09 2020-09-30 13F MERCK & CO. COM 58933Y105 3,948 1,228 45.15 327 55.71 0.0944
2020-07-15 2020-06-30 13F MERCK & CO. COM 58933Y105 2,720 54 2.03 210 2.44 0.0680
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 2,666 2,666 205 0.0855
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.