Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionNicholas Company, Inc.
Latest Disclosed Ownership49,156 shares
Latest Disclosed Value $ 5,912,975
Nicholas Company, Inc. ownership in MRK / Merck & Co., Inc.

On May 4, 2026 - Nicholas Company, Inc. filed a 13F-HR form disclosing ownership of 49,156 shares of Merck & Co., Inc. (MX:MRK) valued at $5,912,975 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 49,156 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)
2026-05-04 2026-03-31 13F Merck COM 58933Y105 49,156 0 0.00 5,913 14.26 0.1160
2026-02-04 2025-12-31 13F Merck COM 58933Y105 49,156 -5,290 -9.72 5,174 13.24 0.0906
2025-11-12 2025-09-30 13F Merck COM 58933Y105 54,446 -5,480 -9.14 4,570 -3.67 0.0775
2025-08-05 2025-06-30 13F Merck COM 58933Y105 59,926 -599,266 -90.91 4,744 -91.98 0.0794
2025-05-08 2025-03-31 13F Merck COM 58933Y105 659,192 -4,194 -0.63 59,169 -10.34 1.0246
2025-02-10 2024-12-31 13F Merck COM 58933Y105 663,386 213,489 47.45 65,994 29.17 1.0687
2024-11-12 2024-09-30 13F Merck COM 58933Y105 449,897 0 0.00 51,090 -8.27 0.8312
2024-07-24 2024-06-30 13F Merck COM 58933Y105 449,897 -10,945 -2.38 55,697 -8.41 0.9266
2024-05-14 2024-03-31 13F Merck COM 58933Y105 460,842 25,260 5.80 60,808 28.05 1.0048
2024-02-13 2023-12-31 13F Merck COM 58933Y105 435,582 -35 -0.01 47,487 5.89 0.8406
2024-02-13 2023-09-30 13F/A-1 Merck COM 58933Y105 435,617 -340 -0.08 44,847 -10.85 0.8977
2023-11-13 2023-09-30 13F Merck COM 58933Y105 435,617 -340 44,847 0.8977
2024-02-13 2023-06-30 13F/A-2 Merck COM 58933Y105 435,957 0 0.00 50,305 8.46 0.9626
2023-10-31 2023-06-30 13F/A-1 Merck COM 58933Y105 435,957 0 50,305 0.9626
2023-08-08 2023-06-30 13F Merck COM 58933Y105 435,957 0 50,305 0.9626
2024-02-13 2023-03-31 13F/A-1 Merck COM 58933Y105 435,957 -3,025 -0.69 46,381 -4.77 0.9409
2023-05-11 2023-03-31 13F Merck COM 58933Y105 435,957 -3,025 46,381 0.9409
2024-02-13 2022-12-31 13F/A-1 Merck COM 58933Y105 438,982 -101,080 -18.72 48,705 4.72 1.0419
2023-02-09 2022-12-31 13F Merck COM 58933Y105 438,982 -101,080 48,705 1.0419
2024-02-13 2022-09-30 13F/A-1 Merck COM 58933Y105 540,062 -190 -0.04 46,510 -5.57 1.0646
2022-11-14 2022-09-30 13F Merck COM 58933Y105 540,062 -190 46,510 1.0646
2024-02-13 2022-06-30 13F/A-1 Merck COM 58933Y105 540,252 -173,405 -24.30 49,255 -15.88 1.0757
2022-07-26 2022-06-30 13F Merck COM 58933Y105 540,252 -173,405 49,255 1.0757
2024-02-13 2022-03-31 13F/A-1 Merck COM 58933Y105 713,657 -470 -0.07 58,556 6.99 1.0446
2022-05-11 2022-03-31 13F Merck COM 58933Y105 713,657 -470 58,556 1.0446
2022-02-11 2021-12-31 13F Merck COM 58933Y105 714,127 46,780 7.01 54,731 9.19 0.8909
2021-11-15 2021-09-30 13F Merck COM 58933Y105 667,347 40 0.01 50,124 -3.41 0.8831
2021-08-12 2021-06-30 13F Merck COM 58933Y105 667,307 52,825 8.60 51,896 9.55 0.9118
2021-05-14 2021-03-31 13F Merck COM 58933Y105 614,482 54,795 9.79 47,370 3.47 0.8851
2021-02-10 2020-12-31 13F Merck COM 58933Y105 559,687 63,140 12.72 45,782 11.15 0.8668
2020-11-13 2020-09-30 13F Merck COM 58933Y105 496,547 18,495 3.87 41,189 11.42 0.8672
2020-08-13 2020-06-30 13F Merck COM 58933Y105 478,052 38,700 8.81 36,968 9.36 0.8502
2020-05-13 2020-03-31 13F Merck COM 58933Y105 439,352 82,350 23.07 33,804 4.11 0.9562
2020-02-13 2019-12-31 13F Merck COM 58933Y105 357,002 9,980 2.88 32,469 11.15 0.6841
2019-11-14 2019-09-30 13F Merck COM 58933Y105 347,022 0 0.00 29,212 0.39 0.6582
2019-08-13 2019-06-30 13F Merck COM 58933Y105 347,022 30,140 9.51 29,098 10.41 0.6471
2019-05-14 2019-03-31 13F Merck COM 58933Y105 316,882 0 0.00 26,355 8.85 0.6240
2019-02-14 2018-12-31 13F Merck COM 58933Y105 316,882 0 0.00 24,212 7.71 0.6309
2019-02-14 2018-09-30 13F/A-1 Merck COM 58933Y105 316,882 0 0.00 22,479 16.87 0.4911
2018-11-14 2018-09-30 13F Merck COM 58933Y105 316,882 0 22,479
2018-08-14 2018-06-30 13F Merck COM 58933Y105 316,882 158,370 99.91 19,234 122.77 0.4494
2018-05-14 2018-03-31 13F Merck COM 58933Y105 158,512 -381,485 -70.65 8,634 -71.58 0.1963
2018-02-14 2017-12-31 13F Merck COM 58933Y105 539,997 77,785 16.83 30,385 2.67 0.6606
2017-11-14 2017-09-30 13F Merck COM 58933Y105 462,212 0 0.00 29,595 -0.09 0.6590
2017-08-10 2017-06-30 13F Merck COM 58933Y105 462,212 3,395 0.74 29,623 1.61 0.6586
2017-05-12 2017-03-31 13F Merck COM 58933Y105 458,817 -18,555 -3.89 29,153 3.74 0.6621
2017-02-13 2016-12-31 13F Merck COM 58933Y105 477,372 477,372 28,102 0.6267
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.