Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionKendall Capital Management
Latest Disclosed Ownership19,782 shares
Latest Disclosed Value $ 2,379,577
Kendall Capital Management reports 5.18% increase in ownership of MRK / Merck & Co., Inc.

On April 24, 2026 - Kendall Capital Management filed a 13F-HR form disclosing ownership of 19,782 shares of Merck & Co., Inc. (MX:MRK) valued at $2,379,577 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 18,807 shares of Merck & Co., Inc.. This represents a change in shares of 5.18% 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)
2026-04-24 2026-03-31 13F Merck COM 58933Y105 19,782 975 5.18 2,380 20.21 0.4877
2026-01-16 2025-12-31 13F Merck COM 58933Y105 18,807 -268 -1.40 1,980 23.69 0.4141
2025-11-13 2025-09-30 13F Merck COM 58933Y105 19,075 1,383 7.82 1,601 14.29 0.3609
2025-07-16 2025-06-30 13F Merck COM 58933Y105 17,692 -1,165 -6.18 1,400 -17.26 0.3704
2025-04-25 2025-03-31 13F Merck COM 58933Y105 18,857 -492 -2.54 1,693 -12.06 0.4973
2025-02-07 2024-12-31 13F Merck COM 58933Y105 19,349 -436 -2.20 1,925 -14.34 0.5632
2024-11-08 2024-09-30 13F Merck COM 58933Y105 19,785 830 4.38 2,247 -4.26 0.6937
2024-08-12 2024-06-30 13F Merck & Co. COM 58933Y105 18,955 1,055 5.89 2,347 -0.64 0.7824
2024-05-10 2024-03-31 13F Merck & Co. COM 58933Y105 17,900 -725 -3.89 2,362 16.31 0.8126
2024-01-26 2023-12-31 13F Merck & Co. COM 58933Y105 18,625 -405 -2.13 2,030 202,900.00 0.7888
2023-10-31 2023-09-30 13F Merck & Co. COM 58933Y105 19,030 -115 -0.60 2 -50.00 0.8685
2023-07-28 2023-06-30 13F Merck & Co. COM 58933Y105 19,145 460 2.46 2 100.00 0.9682
2023-05-11 2023-03-31 13F Merck & Co. COM 58933Y105 18,685 -133 -0.71 2 -50.00 0.9551
2023-01-30 2022-12-31 13F Merck & Co. COM 58933Y105 18,818 -707 -3.62 2 -99.88 1.0550
2022-11-02 2022-09-30 13F Merck & Co. COM 58933Y105 19,525 517 2.72 1,681 -3.00 0.9782
2022-07-29 2022-06-30 13F Merck & Co. COM 58933Y105 19,008 375 2.01 1,733 13.34 0.9544
2022-05-06 2022-03-31 13F Merck & Co. COM 58933Y105 18,633 995 5.64 1,529 13.09 0.7390
2022-01-28 2021-12-31 13F Merck & Co. COM 58933Y105 17,638 1,400 8.62 1,352 10.82 0.6418
2021-11-05 2021-09-30 13F Merck & Co. COM 58933Y105 16,238 1,100 7.27 1,220 3.65 0.6596
2021-07-30 2021-06-30 13F Merck & Co. COM 58933Y105 15,138 3,195 26.75 1,177 27.80 0.6618
2021-05-05 2021-03-31 13F Merck & Co. COM 58933Y105 11,943 1,640 15.92 921 9.25 0.5698
2021-02-08 2020-12-31 13F Merck & Co. COM 58933Y105 10,303 1,600 18.38 843 16.76 0.6149
2020-10-22 2020-09-30 13F Merck & Co. COM 58933Y105 8,703 2,385 37.75 722 47.65 0.6280
2020-07-30 2020-06-30 13F Merck & Co. COM 58933Y105 6,318 1,590 33.63 489 34.34 0.4683
2020-04-27 2020-03-31 13F Merck & Co. COM 58933Y105 4,728 656 16.11 364 -1.62 0.4119
2020-01-24 2019-12-31 13F Merck & Co. COM 58933Y105 4,072 465 12.89 370 21.71 0.2912
2019-11-12 2019-09-30 13F Merck & Co. COM 58933Y105 3,607 915 33.99 304 34.51 0.2686
2019-08-09 2019-06-30 13F Merck & Co. COM 58933Y105 2,692 0 0.00 226 0.89 0.2044
2019-05-08 2019-03-31 13F Merck & Co. COM 58933Y105 2,692 -395 -12.80 224 -5.08 0.2123
2019-02-13 2018-12-31 13F Merck & Co. COM 58933Y105 3,087 0 0.00 236 7.76 0.2444
2018-10-29 2018-09-30 13F Merck & Co. COM 58933Y105 3,087 3,087 219 0.1864
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.