Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionMurphy, Middleton, Hinkle & Parker, Inc.
Latest Disclosed Ownership10,463 shares
Latest Disclosed Value $ 1,258,546
Murphy, Middleton, Hinkle & Parker, Inc. reports 154.14% increase in ownership of MRK / Merck & Co., Inc.

On April 15, 2026 - Murphy, Middleton, Hinkle & Parker, Inc. filed a 13F-HR form disclosing ownership of 10,463 shares of Merck & Co., Inc. (MX:MRK) valued at $1,258,546 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 4,117 shares of Merck & Co., Inc.. This represents a change in shares of 154.14% 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)
2026-04-15 2026-03-31 13F MERCK COM 58933Y105 10,463 6,346 154.14 1,259 315.18 0.5833
2026-01-09 2025-12-31 13F MERCK COM 58933Y105 4,117 -6,364 -60.72 303 -65.53 0.1468
2025-11-04 2025-09-30 13F MERCK COM 58933Y105 10,481 26 0.25 880 -6.29 0.4301
2025-07-09 2025-06-30 13F MERCK COM 58933Y105 10,455 0 0.00 938 0.00 0.5251
2025-04-15 2025-03-31 13F MERCK COM 58933Y105 10,455 9 0.09 938 -9.72 0.5251
2025-01-16 2024-12-31 13F MERCK COM 58933Y105 10,446 -355 -3.29 1,039 -15.25 0.5871
2024-10-15 2024-09-30 13F MERCK COM 58933Y105 10,801 -339 -3.04 1,227 -11.09 0.6610
2024-07-16 2024-06-30 13F MERCK COM 58933Y105 11,140 -142 -1.26 1,379 -7.33 0.8027
2024-04-11 2024-03-31 13F MERCK COM 58933Y105 11,282 -1 -0.01 1,489 20.98 0.8668
2024-01-24 2023-12-31 13F MERCK COM 58933Y105 11,283 -259 -2.24 1,230 3.54 0.7593
2023-10-03 2023-09-30 13F MERCK COM 58933Y105 11,542 -42 -0.36 1,188 -11.08 0.7636
2023-07-05 2023-06-30 13F MERCK COM 58933Y105 11,584 -40 -0.34 1,337 8.09 0.8350
2023-04-05 2023-03-31 13F MERCK COM 58933Y105 11,624 -184 -1.56 1,237 -5.65 0.7679
2023-02-15 2022-12-31 13F/A-1 MERCK COM 58933Y105 11,808 9 0.08 1,310 28.94 0.8221
2023-01-17 2022-12-31 13F MERCK COM 58933Y105 11,808 9 1 0.8221
2022-10-07 2022-09-30 13F MERCK COM 58933Y105 11,799 10 0.08 1,016 -5.49 0.7063
2022-07-29 2022-06-30 13F MERCK COM 58933Y105 11,789 -40 -0.34 1,075 10.71 0.6963
2022-04-14 2022-03-31 13F MERCK COM 58933Y105 11,829 -39 -0.33 971 6.70 0.5215
2022-01-13 2021-12-31 13F MERCK COM 58933Y105 11,868 11 0.09 910 2.13 0.4849
2021-10-07 2021-09-30 13F MERCK COM 58933Y105 11,857 -328 -2.69 891 -6.01 0.5157
2021-07-13 2021-06-30 13F MERCK COM 58933Y105 12,185 -29 -0.24 948 0.64 0.5293
2021-04-08 2021-03-31 13F MERCK & CO. COM 58933Y105 12,214 23 0.19 942 -5.52 0.5488
2021-01-12 2020-12-31 13F MERCK & CO. COM 58933Y105 12,191 -234 -1.88 997 -3.30 0.6642
2020-10-13 2020-09-30 13F MERCK & CO. COM 58933Y105 12,425 -448 -3.48 1,031 3.51 0.7539
2020-07-08 2020-06-30 13F MERCK & CO. COM 58933Y105 12,873 14 0.11 996 0.71 0.7344
2020-04-09 2020-03-31 13F MERCK & CO. COM 58933Y105 12,859 -991 -7.16 989 -21.51 0.8740
2020-01-08 2019-12-31 13F MERCK COM 58933Y105 13,850 8 0.06 1,260 8.15 0.8386
2019-10-16 2019-09-30 13F MERCK COM 58933Y105 13,842 -30 -0.22 1,165 0.17 0.8257
2019-07-15 2019-06-30 13F MERCK Stock 58933Y105 13,872 -1,104 -7.37 1,163 -6.66 0.8280
2019-04-17 2019-03-31 13F MERCK STOCK 58933Y105 14,976 -488 -3.16 1,246 5.41 0.8561
2019-01-24 2018-12-31 13F MERCK Stock 58933Y105 15,464 -750 -4.63 1,182 2.78 0.9022
2018-10-12 2018-09-30 13F MERCK Stock 58933Y105 16,214 115 0.71 1,150 17.71 0.8123
2018-07-13 2018-06-30 13F MERCK Stock 58933Y105 16,099 217 1.37 977 12.95 0.7299
2018-04-18 2018-03-31 13F MERCK Stock 58933Y105 15,882 100 0.63 865 -2.59 0.6718
2018-02-09 2017-12-31 13F MERCK COM 58933Y105 15,782 15,782 888 0.6604
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.