Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionFlaharty Asset Management, LLC
Latest Disclosed Ownership3,144 shares
Latest Disclosed Value $ 378,191
Flaharty Asset Management, LLC reports 0.77% increase in ownership of MRK / Merck & Co., Inc.

On May 4, 2026 - Flaharty Asset Management, LLC filed a 13F-HR form disclosing ownership of 3,144 shares of Merck & Co., Inc. (MX:MRK) valued at $378,191 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 3,120 shares of Merck & Co., Inc.. This represents a change in shares of 0.77% 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)
2026-05-04 2026-03-31 13F MERCK COM 58933Y105 3,144 24 0.77 378 15.24 0.0469
2026-02-06 2025-12-31 13F MERCK COM 58933Y105 3,120 214 7.36 328 34.98 0.0410
2025-11-04 2025-09-30 13F MERCK COM 58933Y105 2,906 1,324 83.69 244 94.40 0.0310
2025-08-08 2025-06-30 13F MERCK COM 58933Y105 1,582 15 0.96 125 -10.71 0.0258
2025-05-20 2025-03-31 13F MERCK COM 58933Y105 1,567 -978 -38.43 141 -44.66 0.0203
2025-02-05 2024-12-31 13F MERCK COM 58933Y105 2,545 180 7.61 253 -5.60 0.0370
2024-10-18 2024-09-30 13F MERCK COM 58933Y105 2,365 9 0.38 269 -7.90 0.0378
2024-08-01 2024-06-30 13F MERCK COM 58933Y105 2,356 729 44.81 292 35.98 0.0431
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 1,627 1,627 215 0.0319
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 0 -1,607 -100.00 0 -100.00
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 1,607 1,607 165 0.0277
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 0 -2,488 -100.00 0 -100.00
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 2,488 2,488 265 0.0472
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 0 -2,805 -100.00 0 -100.00
2022-11-03 2022-09-30 13F MERCK COM 58933Y105 2,805 2,805 242 0.0498
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.