Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionCordatus Wealth Management LLC
Latest Disclosed Ownership30,072 shares
Latest Disclosed Value $ 3,617,257
Cordatus Wealth Management LLC reports 8.10% decrease in ownership of MRK / Merck & Co., Inc.

On April 29, 2026 - Cordatus Wealth Management LLC filed a 13F-HR form disclosing ownership of 30,072 shares of Merck & Co., Inc. (MX:MRK) valued at $3,617,257 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 32,723 shares of Merck & Co., Inc.. This represents a change in shares of -8.10% 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)
2026-04-29 2026-03-31 13F MERCK COM 58933Y105 30,072 -2,651 -8.10 3,617 5.02 0.8608
2026-01-26 2025-12-31 13F MERCK COM 58933Y105 32,723 -436 -1.31 3,444 23.80 0.7964
2025-10-22 2025-09-30 13F MERCK COM 58933Y105 33,159 15,872 91.81 2,783 278,100.00 0.6561
2025-08-11 2025-06-30 13F MERCK COM 58933Y105 17,287 -9,760 -36.09 1 -50.00 0.3365
2025-05-08 2025-03-31 13F MERCK COM 58933Y105 27,047 6,189 29.67 2 0.00 0.6663
2025-02-03 2024-12-31 13F MERCK COM 58933Y105 20,858 1,511 7.81 2 0.00 0.5473
2024-10-28 2024-09-30 13F MERCK COM 58933Y105 19,347 366 1.93 2 0.00 0.7892
2024-07-18 2024-06-30 13F MERCK COM 58933Y105 18,981 196 1.04 2 0.00 0.8811
2024-04-30 2024-03-31 13F MERCK COM 58933Y105 18,785 110 0.59 2 0.00 1.7969
2024-01-17 2023-12-31 13F MERCK COM 58933Y105 18,675 -331 -1.74 2 100.00 1.6852
2023-10-31 2023-09-30 13F MERCK COM 58933Y105 19,006 -437 -2.25 2 -50.00 1.7878
2023-07-14 2023-06-30 13F MERCK COM 58933Y105 19,443 16,537 569.06 2 0.8435
2023-05-03 2023-03-31 13F MERCK COM 58933Y105 2,906 -47,073 -94.19 0 -100.00 0.3937
2023-02-06 2022-12-31 13F MERCK COM 58933Y105 49,979 49,979 6 8.1338
2022-10-25 2022-09-30 13F MERCK COM 58933Y105 0 -36,364 -100.00 0 -100.00
2022-08-24 2022-06-30 13F MERCK COM 58933Y105 36,364 33,140 1,027.92 3,315 1,150.94 1.5461
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 3,224 298 10.18 265 18.30 0.0931
2022-02-08 2021-12-31 13F MERCK COM 58933Y105 2,926 268 10.08 224 12.00 0.0656
2021-11-10 2021-09-30 13F MERCK COM 58933Y105 2,658 2,658 200 0.1538
2020-04-21 2020-03-31 13F MERCK COM 58933Y105 0 -27,185 -100.00 0 -100.00
2020-02-07 2019-12-31 13F MERCK COM 58933Y105 27,185 -3,823 -12.33 2,472 -5.29 1.2312
2019-11-07 2019-09-30 13F MERCK COM 58933Y105 31,008 -487 -1.55 2,610 -1.17 1.3632
2019-07-29 2019-06-30 13F MERCK COM 58933Y105 31,495 -757 -2.35 2,641 -1.53 1.5427
2019-05-07 2019-03-31 13F MERCK COM 58933Y105 32,252 -60,081 -65.07 2,682 -61.98 1.4739
2019-01-31 2018-12-31 13F MERCK COM 58933Y105 92,333 92,333 7,055 5.0343
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.