Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionCapital Asset Advisory Services LLC
Latest Disclosed Ownership22,240 shares
Latest Disclosed Value $ 2,604,327
Capital Asset Advisory Services LLC reports 1.93% decrease in ownership of MRK / Merck & Co., Inc.

On April 24, 2026 - Capital Asset Advisory Services LLC filed a 13F-HR form disclosing ownership of 22,240 shares of Merck & Co., Inc. (MX:MRK) valued at $2,604,327 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 22,677 shares of Merck & Co., Inc.. This represents a change in shares of -1.93% 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)
2026-04-24 2026-03-31 13F MERCK COM 58933Y105 22,240 -437 -1.93 2,604 5.51 0.0999
2026-01-09 2025-12-31 13F MERCK COM 58933Y105 22,677 413 1.86 2,469 32.12 0.0992
2025-10-02 2025-09-30 13F MERCK COM 58933Y105 22,264 2,515 12.73 1,869 15.67 0.0807
2025-07-07 2025-06-30 13F MERCK COM 58933Y105 19,749 440 2.28 1,616 -3.41 0.0756
2025-04-09 2025-03-31 13F MERCK COM 58933Y105 19,309 -1,794 -8.50 1,672 -20.08 0.0852
2025-01-22 2024-12-31 13F MERCK COM 58933Y105 21,103 548 2.67 2,092 -6.19 0.1030
2024-10-17 2024-09-30 13F MERCK COM 58933Y105 20,555 -471 -2.24 2,231 -15.85 0.1116
2024-07-24 2024-06-30 13F MERCK COM 58933Y105 21,026 -5,543 -20.86 2,650 -22.06 0.1437
2024-04-16 2024-03-31 13F MERCK COM 58933Y105 26,569 1,712 6.89 3,401 25.51 0.1948
2024-01-09 2023-12-31 13F MERCK COM 58933Y105 24,857 390 1.59 2,710 7.03 0.1677
2023-10-18 2023-09-30 13F MERCK COM 58933Y105 24,467 1,895 8.40 2,531 4.50 0.1734
2023-08-02 2023-06-30 13F MERCK COM 58933Y105 22,572 894 4.12 2,423 5.03 0.1691
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 21,678 1,067 5.18 2,306 -1.66 0.1715
2023-03-08 2022-12-31 13F MERCK COM 58933Y105 20,611 270 1.33 2,346 33.85 0.1872
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 20,341 899 4.62 1,752 -1.90 0.2279
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 19,442 2,228 12.94 1,786 25.42 0.1967
2022-04-29 2022-03-31 13F MERCK COM 58933Y105 17,214 787 4.79 1,424 12.30 0.1515
2022-02-04 2021-12-31 13F MERCK COM 58933Y105 16,427 4,681 39.85 1,268 42.47 0.1345
2021-10-14 2021-09-30 13F MERCK COM 58933Y105 11,746 -562 -4.57 890 -7.77 0.0991
2021-08-06 2021-06-30 13F MERCK COM 58933Y105 12,308 -895 -6.78 965 -5.95 0.1059
2021-05-13 2021-03-31 13F MERCK & CO. COM 58933Y105 13,203 1,590 13.69 1,026 7.21 0.1530
2021-03-02 2020-12-31 13F MERCK & CO. COM 58933Y105 11,613 1,820 18.58 957 16.99 0.1702
2020-11-18 2020-09-30 13F MERCK & CO. COM 58933Y105 9,793 327 3.45 818 6.79 0.1713
2020-08-14 2020-06-30 13F MERCK & CO. COM 58933Y105 9,466 1,387 17.17 766 21.78 0.1645
2020-05-18 2020-03-31 13F MERCK & CO. COM 58933Y105 8,079 1,066 15.20 629 5.18 0.1669
2020-02-13 2019-12-31 13F/A-1 MERCK COM 58933Y105 7,013 7,013 598 0.1405
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 14 14 588 149,674.3057
2019-07-15 2019-06-30 13F MERCK COM 58933Y105 0 -2,491 -100.00 0 -100.00
2019-04-24 2019-03-31 13F MERCK COM 58933Y105 2,491 2,491 207 0.2679
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.