Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionHarvey Capital Management Inc
Latest Disclosed Ownership2,500 shares
Latest Disclosed Value $ 300,725
Harvey Capital Management Inc ownership in MRK / Merck & Co., Inc.

On May 11, 2026 - Harvey Capital Management Inc filed a 13F-HR form disclosing ownership of 2,500 shares of Merck & Co., Inc. (MX:MRK) valued at $300,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,500 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-05-11 2026-03-31 13F MERCK CO INC COM 58933Y105 2,500 0 0.00 301 14.07 0.0685
2026-02-17 2025-12-31 13F MERCK CO INC COM 58933Y105 2,500 0 0.00 263 25.84 0.0561
2025-10-31 2025-09-30 13F MERCK CO INC COM 58933Y105 2,500 0 0.00 210 2.45 0.0448
2025-08-14 2025-06-30 13F MERCK CO INC COM 58933Y105 2,500 -300 -10.71 205 -18.73 0.0479
2025-04-30 2025-03-31 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 251 -9.71 0.0658
2025-01-29 2024-12-31 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 279 -12.30 0.0656
2024-10-29 2024-09-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 318 -8.38 0.0795
2024-07-22 2024-06-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 347 -6.23 0.0911
2024-05-10 2024-03-31 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 369 20.98 0.1081
2024-01-29 2023-12-31 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 305 5.90 0.1013
2023-11-14 2023-09-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 288 -10.84 0.1015
2023-08-04 2023-06-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 323 8.75 0.1188
2023-05-17 2023-03-31 13F/A-1 MERCK CO INC COM 58933Y105 2,800 0 0.00 298 -4.19 0.1174
2023-05-16 2023-03-31 13F MERCK CO INC COM 58933Y105 2,800 0 311 0.1301
2023-02-27 2022-12-31 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 311 28.63 0.1301
2022-11-14 2022-09-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 241 -5.49 0.1044
2022-08-08 2022-06-30 13F MERCK CO INC COM 58933Y105 2,800 0 0.00 255 11.35 0.0995
2022-04-22 2022-03-31 13F MERCK CO INC COM 58933Y105 2,800 -38,585 -93.23 229 -92.78 0.0707
2022-02-14 2021-12-31 13F MERCK CO INC COM 58933Y105 41,385 50 0.12 3,171 2.16 0.9831
2021-10-25 2021-09-30 13F MERCK CO INC COM 58933Y105 41,335 -1,100 -2.59 3,104 -5.94 1.0632
2021-08-10 2021-06-30 13F MERCK CO INC COM 58933Y105 42,435 -1,325 -3.03 3,300 -2.16 1.0886
2021-05-07 2021-03-31 13F MERCK CO INC COM 58933Y105 43,760 900 2.10 3,373 -3.77 1.2232
2021-02-10 2020-12-31 13F MERCK CO INC NEW COM COM 58933Y105 42,860 100 0.23 3,505 -1.16 1.4222
2020-10-27 2020-09-30 13F MERCK CO INC NEW COM COM 58933Y105 42,760 -420 -0.97 3,546 6.20 1.5821
2020-08-05 2020-06-30 13F MERCK CO INC NEW COM COM 58933Y105 43,180 43,180 3,339 1.6522
2020-04-29 2020-03-31 13F MERCK CO INC NEW COM COM 58933Y105 0 -2,500 -100.00 0 -100.00
2020-02-04 2019-12-31 13F MERCK CO INC NEW COM COM 58933Y105 2,500 0 0.00 227 8.10 0.1008
2019-10-17 2019-09-30 13F MERCK CO INC NEW COM COM 58933Y105 2,500 0 0.00 210 0.48 0.1043
2019-07-23 2019-06-30 13F MERCK CO INC NEW COM COM 58933Y105 2,500 0 0.00 209 0.97 0.1005
2019-04-17 2019-03-31 13F MERCK CO INC NEW COM COM 58933Y105 2,500 2,500 207 0.0995
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.