머크 앤 컴퍼니(Merck & Co., Inc.)
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionCardinal Capital Management, Inc.
Latest Disclosed Ownership207,470 shares
Latest Disclosed Value $ 24,956,566
Cardinal Capital Management, Inc. reports 31.87% decrease in ownership of MRK / Merck & Co., Inc.

On April 7, 2026 - Cardinal Capital Management, Inc. filed a 13F-HR form disclosing ownership of 207,470 shares of Merck & Co., Inc. (MX:MRK) valued at $24,956,566 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 304,534 shares of Merck & Co., Inc.. This represents a change in shares of -31.87% 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)
2026-04-07 2026-03-31 13F Merck COM 58933Y105 207,470 -97,064 -31.87 24,957 -43.24 0.6725
2026-01-22 2025-12-31 13F Merck COM 58933Y105 304,534 10,659 3.63 43,972 78.28 0.9873
2025-10-03 2025-09-30 13F Merck COM 58933Y105 293,875 24,204 8.98 24,665 15.54 0.7124
2025-07-11 2025-06-30 13F Merck COM 58933Y105 269,671 3,065 1.15 21,347 -10.79 0.6682
2025-04-14 2025-03-31 13F Merck COM 58933Y105 266,606 35,754 15.49 23,931 4.20 0.8127
2025-01-17 2024-12-31 13F Merck COM 58933Y105 230,852 4,588 2.03 22,965 -10.62 0.7804
2024-10-10 2024-09-30 13F Merck COM 58933Y105 226,264 4,624 2.09 25,695 -6.36 1.0583
2024-07-09 2024-06-30 13F Merck COM 58933Y105 221,640 1,227 0.56 27,439 -5.65 1.0550
2024-04-09 2024-03-31 13F Merck COM 58933Y105 220,413 -71,993 -24.62 29,083 -8.77 1.2914
2024-02-23 2023-12-31 13F Merck COM 58933Y105 292,406 -8,939 -2.97 31,878 2.76 1.5100
2023-10-12 2023-09-30 13F Merck COM 58933Y105 301,345 2,373 0.79 31,023 -10.07 1.6157
2023-07-10 2023-06-30 13F Merck COM 58933Y105 298,972 -9,825 -3.18 34,498 5.01 1.7286
2023-04-06 2023-03-31 13F Merck COM 58933Y105 308,797 -70,960 -18.69 32,853 -22.03 1.7842
2023-02-03 2022-12-31 13F Merck COM 58933Y105 379,757 2,236 0.59 42,134 29.60 2.3779
2022-10-07 2022-09-30 13F Merck COM 58933Y105 377,521 -6,245 -1.63 32,512 -7.08 1.9807
2022-07-13 2022-06-30 13F Merck COM 58933Y105 383,766 -1,378 -0.36 34,988 10.72 1.9333
2022-04-12 2022-03-31 13F Merck COM 58933Y105 385,144 11,289 3.02 31,601 10.29 1.5370
2022-01-19 2021-12-31 13F Merck COM 58933Y105 373,855 737 0.20 28,652 2.24 1.3360
2021-10-07 2021-09-30 13F Merck COM 58933Y105 373,118 2,109 0.57 28,025 -2.87 1.5317
2021-07-09 2021-06-30 13F Merck COM 58933Y105 371,009 29,255 8.56 28,853 9.52 1.5601
2021-04-14 2021-03-31 13F Merck COM 58933Y105 341,754 127,916 59.82 26,346 50.62 1.5486
2021-01-15 2020-12-31 13F Merck COM 58933Y105 213,838 11,508 5.69 17,492 4.22 1.0634
2020-10-13 2020-09-30 13F Merck COM 58933Y105 202,330 3,865 1.95 16,783 9.36 1.2024
2020-07-08 2020-06-30 13F Merck COM 58933Y105 198,465 16,215 8.90 15,347 9.45 1.2955
2020-04-08 2020-03-31 13F Merck COM 58933Y105 182,250 25,705 16.42 14,022 -1.52 1.1662
2020-01-15 2019-12-31 13F Merck COM 58933Y105 156,545 38,410 32.51 14,238 43.17 0.9598
2019-10-08 2019-09-30 13F Merck COM 58933Y105 118,135 10,080 9.33 9,945 9.77 0.9258
2019-07-11 2019-06-30 13F Merck COM 58933Y105 108,055 97,555 929.10 9,060 937.80 0.9017
2019-04-04 2019-03-31 13F Merck COM 58933Y105 10,500 0 0.00 873 8.85 0.0873
2019-01-14 2018-12-31 13F Merck COM 58933Y105 10,500 -600 -5.41 802 1.91 0.0940
2018-10-05 2018-09-30 13F Merck COM 58933Y105 11,100 0 0.00 787 16.77 0.0750
2018-07-05 2018-06-30 13F Merck COM 58933Y105 11,100 11,100 674 0.0651
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.