Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionModern Wealth Management, LLC
Latest Disclosed Ownership39,645 shares
Latest Disclosed Value $ 4,790,735
Modern Wealth Management, LLC reports 14.33% increase in ownership of MRK / Merck & Co., Inc.

On May 14, 2026 - Modern Wealth Management, LLC filed a 13F-HR form disclosing ownership of 39,645 shares of Merck & Co., Inc. (MX:MRK) valued at $4,790,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,677 shares of Merck & Co., Inc.. This represents a change in shares of 14.33% 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)
2026-05-14 2026-03-31 13F MERCK COM 58933Y105 39,645 4,968 14.33 4,791 31.23 0.0737
2026-02-17 2025-12-31 13F MERCK COM 58933Y105 34,677 1,002 2.98 3,650 29.16 0.0666
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 33,675 12,788 61.22 2,826 70.96 0.0559
2025-11-12 2025-06-30 13F/A-1 MERCK COM 58933Y105 20,887 -1,314 -5.92 1,653 -17.02 0.0407
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 19,993 -2,208 1,583 0.0395
2025-06-02 2025-03-31 13F/A-1 MERCK COM 58933Y105 22,201 10,001 81.98 1,993 64.22 0.0638
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 20,455 8,255 1,836 0.0567
2025-05-30 2024-12-31 13F/A-3 MERCK COM 58933Y105 12,200 4,011 48.98 1,214 30.43 0.0454
2025-05-30 2024-12-31 13F/A-1 MERCK COM 58933Y105 11,330 3,141 1,127 0.0449
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 11,858 4,539 1,025 0.0359
2025-05-30 2024-09-30 13F/A-3 MERCK COM 58933Y105 8,189 1,078 15.16 930 5.68 0.0570
2025-05-29 2024-09-30 13F/A-1 MERCK COM 58933Y105 7,319 208 831 0.0516
2024-11-05 2024-09-30 13F MERCK COM 58933Y105 8,235 1,124 935 0.0568
2025-05-29 2024-06-30 13F/A-1 MERCK COM 58933Y105 7,111 2,769 63.77 880 53.58 0.0675
2024-08-08 2024-06-30 13F MERCK COM 58933Y105 7,157 2,815 886 0.0648
2025-05-29 2024-03-31 13F/A-1 MERCK COM 58933Y105 4,342 379 9.56 573 32.64 0.0538
2024-05-13 2024-03-31 13F MERCK COM 58933Y105 5,170 1,207 672 0.0605
2025-05-28 2023-12-31 13F/A-1 MERCK COM 58933Y105 3,963 3,963 432 0.0547
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 3,198 3,198 349 0.0467
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.