Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAlliance Wealth Advisors, LLC
Latest Disclosed Ownership13,257 shares
Latest Disclosed Value $ 1,594,679
Alliance Wealth Advisors, LLC reports 2.46% decrease in ownership of MRK / Merck & Co., Inc.

On May 13, 2026 - Alliance Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 13,257 shares of Merck & Co., Inc. (MX:MRK) valued at $1,594,679 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 13,592 shares of Merck & Co., Inc.. This represents a change in shares of -2.46% 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)
2026-05-13 2026-03-31 13F MERCK COM 58933Y105 13,257 -335 -2.46 1,595 11.47 0.6984
2026-01-14 2025-12-31 13F MERCK COM 58933Y105 13,592 55 0.41 1,431 25.88 0.6220
2025-10-15 2025-09-30 13F MERCK COM 58933Y105 13,537 53 0.39 1,136 6.47 0.5095
2025-07-17 2025-06-30 13F MERCK COM 58933Y105 13,484 -651 -4.61 1,067 -15.85 0.5457
2025-04-11 2025-03-31 13F MERCK COM 58933Y105 14,135 336 2.43 1,269 -7.58 0.7196
2025-01-28 2024-12-31 13F MERCK COM 58933Y105 13,799 -98 -0.71 1,373 -13.05 0.7675
2024-10-16 2024-09-30 13F MERCK COM 58933Y105 13,897 -524 -3.63 1,578 -11.60 0.9012
2024-07-17 2024-06-30 13F MERCK COM 58933Y105 14,421 -556 -3.71 1,785 -9.67 1.1236
2024-04-16 2024-03-31 13F MERCK COM 58933Y105 14,977 -2,447 -14.04 1,976 4.05 1.2459
2024-01-10 2023-12-31 13F MERCK COM 58933Y105 17,424 -436 -2.44 1,900 3.32 1.2555
2023-10-12 2023-09-30 13F MERCK COM 58933Y105 17,860 -261 -1.44 1,839 -12.06 1.3296
2023-07-24 2023-06-30 13F MERCK COM 58933Y105 18,121 -294 -1.60 2,091 6.69 1.4867
2023-04-06 2023-03-31 13F MERCK COM 58933Y105 18,415 -8,604 -31.84 1,959 -34.63 1.4692
2023-01-23 2022-12-31 13F MERCK COM 58933Y105 27,019 -561 -2.03 2,998 26.19 2.4974
2022-10-11 2022-09-30 13F MERCK COM 58933Y105 27,580 -668 -2.36 2,375 -7.77 2.2102
2022-07-20 2022-06-30 13F MERCK COM 58933Y105 28,248 -585 -2.03 2,575 8.83 2.2257
2022-04-12 2022-03-31 13F MERCK & CO. COM 58933Y105 28,833 -86 -0.30 2,366 6.77 1.9618
2022-01-21 2021-12-31 13F MERCK COM 58933Y105 28,919 -156 -0.54 2,216 1.47 1.8045
2022-01-18 2021-09-30 13F/A-1 MERCK COM 58933Y105 29,075 -238 -0.81 2,184 -4.21 1.9338
2021-10-12 2021-09-30 13F MERCK COM 58933Y105 29,075 -238 2,184 1.9346
2021-07-27 2021-06-30 13F MERCK COM 58933Y105 29,313 9 0.03 2,280 0.93 2.0508
2021-04-14 2021-03-31 13F MERCK & CO. COM 58933Y105 29,304 -1,845 -5.92 2,259 -11.34 2.2295
2021-03-09 2020-12-31 13F MERCK & CO. COM 58933Y105 31,149 31,149 2,548 2.6742
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.