默克公司
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSomerset Trust Co
Latest Disclosed Ownership8,620 shares
Latest Disclosed Value $ 1,036,900
Somerset Trust Co reports 0.03% increase in ownership of MRK / Merck & Co., Inc.

On April 2, 2026 - Somerset Trust Co filed a 13F-HR form disclosing ownership of 8,620 shares of Merck & Co., Inc. (MX:MRK) valued at $1,036,900 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 8,617 shares of Merck & Co., Inc.. This represents a change in shares of 0.03% 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)
2026-04-02 2026-03-31 13F MERCK & CO INC Common Stock 58933Y105 8,620 3 0.03 1,037 14.22 0.3180
2026-01-09 2025-12-31 13F MERCK & CO INC Common Stock 58933Y105 8,617 368 4.46 907 31.07 0.2775
2025-10-14 2025-09-30 13F MERCK & CO INC Common Stock 58933Y105 8,249 -2,331 -22.03 692 -17.32 0.2137
2025-07-07 2025-06-30 13F MERCK & CO INC Common Stock 58933Y105 10,580 133 1.27 838 -10.67 0.2730
2025-04-08 2025-03-31 13F MERCK & CO INC Common Stock 58933Y105 10,447 2,054 24.47 938 12.35 0.3339
2025-01-15 2024-12-31 13F MERCK & CO INC Common Stock 58933Y105 8,393 595 7.63 835 -5.76 0.3142
2024-10-08 2024-09-30 13F MERCK & CO INC Common Stock 58933Y105 7,798 1,375 21.41 886 11.32 0.3313
2024-07-09 2024-06-30 13F MERCK & CO INC Common Stock 58933Y105 6,423 210 3.38 795 -2.93 0.3261
2024-04-05 2024-03-31 13F MERCK & CO INC Common Stock 58933Y105 6,213 641 11.50 820 34.93 0.3344
2024-01-08 2023-12-31 13F MERCK & CO INC Common Stock 58933Y105 5,572 1,146 25.89 607 33.41 0.2663
2023-10-17 2023-09-30 13F MERCK & CO INC Common Stock 58933Y105 4,426 -293 -6.21 456 -16.36 0.2078
2023-07-07 2023-06-30 13F MERCK & CO INC Common Stock 58933Y105 4,719 -453 -8.76 545 -1.09 0.2342
2023-04-05 2023-03-31 13F MERCK & CO INC Common Stock 58933Y105 5,172 -1,029 -16.59 550 -20.06 0.2386
2023-01-03 2022-12-31 13F MERCK & CO INC Common Stock 58933Y105 6,201 740 13.55 1 -100.00 0.2886
2022-10-03 2022-09-30 13F MERCK & CO INC Common Stock 58933Y105 5,461 47 0.87 470 -4.86 0.2189
2022-07-06 2022-06-30 13F MERCK & CO INC Common Stock 58933Y105 5,414 245 4.74 494 16.51 0.2164
2022-04-05 2022-03-31 13F MERCK & CO INC Common Stock 58933Y105 5,169 294 6.03 424 13.37 0.1640
2022-01-07 2021-12-31 13F MERCK & CO INC Common Stock 58933Y105 4,875 78 1.63 374 3.89 0.1364
2021-10-07 2021-09-30 13F MERCK & CO INC Common Stock 58933Y105 4,797 4,797 360 0.1470
2019-07-31 2019-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 0 -699 -100.00 0 -100.00
2019-04-09 2019-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 699 529 311.18 58 346.15 0.0305
2019-01-22 2018-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 170 146 608.33 13 550.00 0.0076
2018-10-15 2018-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 24 24 2 0.0010
2017-07-13 2017-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 0 -54 -100.00 0 -100.00
2017-04-18 2017-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 54 54 3 0.0017
2015-07-14 2015-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 0 -1,090 -100.00 0 -100.00
2015-04-16 2015-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 0 0.00 63 1.61 0.0416
2015-01-09 2014-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 0 0.00 62 -4.62 0.0413
2014-10-07 2014-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 0 0.00 65 3.17 0.0454
2014-07-09 2014-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 0 0.00 63 1.61 0.0446
2014-04-09 2014-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 0 0.00 62 12.73 0.0472
2014-01-22 2013-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 1,090 1,090 55 0.0418
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.