Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionMarks Group Wealth Management, Inc
Latest Disclosed Ownership2,546 shares
Latest Disclosed Value $ 306,258
Marks Group Wealth Management, Inc ownership in MRK / Merck & Co., Inc.

On May 5, 2026 - Marks Group Wealth Management, Inc filed a 13F-HR form disclosing ownership of 2,546 shares of Merck & Co., Inc. (MX:MRK) valued at $306,258 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,546 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-05-05 2026-03-31 13F MERCK COM 58933Y105 2,546 0 0.00 306 14.61 0.0295
2026-02-11 2025-12-31 13F MERCK COM 58933Y105 2,546 -167 -6.16 268 17.62 0.0257
2025-11-10 2025-09-30 13F MERCK COM 58933Y105 2,713 0 0.00 228 6.07 0.0212
2025-07-22 2025-06-30 13F MERCK COM 58933Y105 2,713 -606 -18.26 215 -27.95 0.0200
2025-05-01 2025-03-31 13F MERCK COM 58933Y105 3,319 -6 -0.18 298 -10.00 0.0287
2025-01-29 2024-12-31 13F MERCK COM 58933Y105 3,325 0 0.00 331 -12.47 0.0326
2024-10-30 2024-09-30 13F MERCK COM 58933Y105 3,325 -85 -2.49 378 -10.66 0.0360
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 3,410 -114 -3.23 422 -9.05 0.0445
2024-04-29 2024-03-31 13F MERCK COM 58933Y105 3,524 0 0.00 465 20.83 0.0486
2024-02-01 2023-12-31 13F MERCK COM 58933Y105 3,524 52 1.50 384 7.56 0.0438
2023-10-30 2023-09-30 13F MERCK COM 58933Y105 3,472 425 13.95 357 1.71 0.0442
2023-07-19 2023-06-30 13F MERCK COM 58933Y105 3,047 -55 -1.77 352 6.36 0.0418
2023-05-03 2023-03-31 13F MERCK COM 58933Y105 3,102 0 0.00 330 -4.07 0.0422
2023-02-06 2022-12-31 13F MERCK COM 58933Y105 3,102 0 0.00 344 28.84 0.0470
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 3,102 34 1.11 267 -4.64 0.0406
2022-08-09 2022-06-30 13F MERCK COM 58933Y105 3,068 392 14.65 280 27.27 0.0404
2022-05-10 2022-03-31 13F MERCK COM 58933Y105 2,676 2,676 220 0.0229
2022-05-10 2022-03-31 13F MERCK COM 58933Y105 2,930 241
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.