Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionWayfinding Financial, LLC
Latest Disclosed Ownership2,307 shares
Latest Disclosed Value $ 279
Wayfinding Financial, LLC reports 2.25% decrease in ownership of MRK / Merck & Co., Inc.

On May 12, 2026 - Wayfinding Financial, LLC filed a 13F-HR form disclosing ownership of 2,307 shares of Merck & Co., Inc. (MX:MRK) valued at $279 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,360 shares of Merck & Co., Inc..

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)
2026-05-12 2026-03-31 13F MERCK & CO INC COM Common Stock 58933Y105 2,307 -53 -2.25 0 0.1211
2026-02-12 2025-12-31 13F MERCK & CO INC COM Stock 58933Y105 2,360 2,360 0 0.1058
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 0 -4,231 -100.00 0 0.0000
2025-04-29 2025-03-31 13F MERCK COM 58933Y105 4,231 -56 -1.31 0 0.1678
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 4,287 4,287 0 0.2293
2024-11-04 2024-09-30 13F MERCK AND Stock 58933Y105 0 -4,163 -100.00 0 0.0000
2024-08-09 2024-06-30 13F MERCK AND Stock 58933Y105 4,163 -1,156 -21.73 1 0.2916
2024-05-09 2024-03-31 13F MERCK Stock 58933Y105 5,319 435 8.91 1 0.4030
2024-01-10 2023-12-31 13F MERCK Stock 58933Y105 4,884 -294 -5.68 1 0.3648
2023-11-02 2023-09-30 13F MERCK & CO INC COM Stock 58933Y105 5,178 -239 -4.41 1 0.4038
2023-07-31 2023-06-30 13F MERCK AND Stock 58933Y105 5,417 357 7.06 1 0.4001
2023-05-05 2023-03-31 13F MERCK CO INC COM Stock 58933Y105 5,060 384 8.21 1 0.4121
2023-02-10 2022-12-31 13F MERCK Stock 58933Y105 4,676 -273 -5.52 0 -100.00 0.3015
2022-11-09 2022-09-30 13F MERCK AND Stock 58933Y105 4,949 85 1.75 429 -3.81 0.4005
2022-08-09 2022-06-30 13F MERCK Stock 58933Y105 4,864 19 0.39 446 4.21 0.3918
2022-05-09 2022-03-31 13F MERCK & CO INC COM Stock 58933Y105 4,845 169 3.61 428 13.83 0.3578
2022-01-28 2021-12-31 13F MERCK Stock 58933Y105 4,676 4,676 376 0.3015
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.