Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionQuantum Financial Advisors, LLC
Latest Disclosed Ownership6,635 shares
Latest Disclosed Value $ 798,124
Quantum Financial Advisors, LLC reports 14.85% increase in ownership of MRK / Merck & Co., Inc.

On April 8, 2026 - Quantum Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 6,635 shares of Merck & Co., Inc. (MX:MRK) valued at $798,124 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 5,777 shares of Merck & Co., Inc.. This represents a change in shares of 14.85% 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)
2026-04-08 2026-03-31 13F MERCK COM 58933Y105 6,635 858 14.85 798 31.25 0.0895
2026-01-12 2025-12-31 13F MERCK COM 58933Y105 5,777 1,916 49.62 608 87.65 0.0683
2025-10-08 2025-09-30 13F MERCK COM 58933Y105 3,861 0 0.00 324 6.23 0.0395
2025-07-11 2025-06-30 13F MERCK COM 58933Y105 3,861 -945 -19.66 306 -29.23 0.0414
2025-04-09 2025-03-31 13F MERCK COM 58933Y105 4,806 216 4.71 431 -5.48 0.0643
2025-01-14 2024-12-31 13F MERCK COM 58933Y105 4,590 450 10.87 457 -2.98 0.0696
2024-10-04 2024-09-30 13F MERCK COM 58933Y105 4,140 1,145 38.23 470 27.03 0.0736
2024-07-15 2024-06-30 13F MERCK COM 58933Y105 2,995 -45 -1.48 371 -7.73 0.0651
2024-04-26 2024-03-31 13F MERCK COM 58933Y105 3,040 -70 -2.25 401 18.29 0.0738
2024-01-09 2023-12-31 13F MERCK COM 58933Y105 3,110 222 7.69 339 14.14 0.0827
2023-11-29 2023-09-30 13F MERCK COM 58933Y105 2,888 0 0.00 297 -10.81 0.0874
2023-08-10 2023-06-30 13F MERCK COM 58933Y105 2,888 179 6.61 333 15.63 0.0980
2023-04-07 2023-03-31 13F MERCK COM 58933Y105 2,709 0 0.00 288 -4.00 0.0907
2023-01-18 2022-12-31 13F MERCK COM 58933Y105 2,709 334 14.06 301 46.34 0.1353
2022-10-24 2022-09-30 13F MERCK COM 58933Y105 2,375 3 0.13 205 -3.30 0.0909
2022-08-15 2022-06-30 13F MERCK COM 58933Y105 2,372 2,372 212 0.0795
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.