Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionRedmond Asset Management, LLC
Latest Disclosed Ownership19,017 shares
Latest Disclosed Value $ 2,287,603
Redmond Asset Management, LLC reports 23.16% decrease in ownership of MRK / Merck & Co., Inc.

On May 6, 2026 - Redmond Asset Management, LLC filed a 13F-HR form disclosing ownership of 19,017 shares of Merck & Co., Inc. (MX:MRK) valued at $2,287,603 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 24,748 shares of Merck & Co., Inc.. This represents a change in shares of -23.16% 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)
2026-05-06 2026-03-31 13F MERCK COM 58933Y105 19,017 -5,731 -23.16 2,288 -12.17 0.6246
2026-02-09 2025-12-31 13F MERCK COM 58933Y105 24,748 -301 -1.20 2,605 23.88 0.6642
2025-11-10 2025-09-30 13F MERCK COM 58933Y105 25,049 -300 -1.18 2,102 4.79 0.5162
2025-08-01 2025-06-30 13F MERCK COM 58933Y105 25,349 8,391 49.48 2,007 31.80 0.4785
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 16,958 1,668 10.91 1,522 0.07 0.3925
2025-02-03 2024-12-31 13F MERCK COM 58933Y105 15,290 4,092 36.54 1,521 19.67 0.3798
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 11,198 809 7.79 1,272 -1.17 0.3989
2024-08-09 2024-06-30 13F MERCK COM 58933Y105 10,389 -82 -0.78 1,286 -6.88 0.4234
2024-05-07 2024-03-31 13F MERCK COM 58933Y105 10,471 -498 -4.54 1,382 15.56 0.4389
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 10,969 611 5.90 1,196 12.10 0.3855
2023-10-24 2023-09-30 13F MERCK COM 58933Y105 10,358 -60 -0.58 1,066 -11.31 0.3800
2023-08-09 2023-06-30 13F MERCK COM 58933Y105 10,418 -146 -1.38 1,202 7.03 0.3904
2023-05-03 2023-03-31 13F/A-1 MERCK COM 58933Y105 10,564 -1,551 -12.80 1,124 -16.44 0.3887
2023-05-03 2023-03-31 13F MERCK COM 58933Y105 10,564 -1,551 1,124 0.3887
2023-02-06 2022-12-31 13F MERCK COM 58933Y105 12,115 -3,137 -20.57 1,344 2.36 0.4828
2022-11-10 2022-09-30 13F MERCK COM 58933Y105 15,252 -714 -4.47 1,313 -9.82 0.4887
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 15,966 2 0.01 1,456 11.15 0.5226
2022-05-03 2022-03-31 13F MERCK COM 58933Y105 15,964 1,484 10.25 1,310 18.02 0.3903
2022-02-04 2021-12-31 13F MERCK COM 58933Y105 14,480 2,710 23.02 1,110 25.57 0.3101
2021-10-22 2021-09-30 13F MERCK COM 58933Y105 11,770 1 0.01 884 -3.39 0.2769
2021-08-11 2021-06-30 13F MERCK COM 58933Y105 11,769 -821 -6.52 915 -5.67 0.2684
2021-05-06 2021-03-31 13F MERCK COM 58933Y105 12,590 200 1.61 970 -4.24 0.3016
2021-02-11 2020-12-31 13F MERCK COM 58933Y105 12,390 1,173 10.46 1,013 8.92 0.3590
2020-11-06 2020-09-30 13F MERCK COM 58933Y105 11,217 1,242 12.45 930 20.62 0.3890
2020-08-10 2020-06-30 13F MERCK COM 58933Y105 9,975 396 4.13 771 4.61 0.3212
2020-05-06 2020-03-31 13F MERCK COM 58933Y105 9,579 1,399 17.10 737 -0.81 0.3667
2020-02-11 2019-12-31 13F MERCK COM 58933Y105 8,180 24 0.29 743 8.15 0.3153
2019-11-07 2019-09-30 13F MERCK COM 58933Y105 8,156 1,537 23.22 687 23.78 0.3048
2019-08-01 2019-06-30 13F MERCK COM 58933Y105 6,619 110 1.69 555 2.59 0.2386
2019-04-24 2019-03-31 13F MERCK COM 58933Y105 6,509 910 16.25 541 26.40 0.2353
2019-02-06 2018-12-31 13F MERCK COM 58933Y105 5,599 -116 -2.03 428 5.68 0.2048
2018-11-13 2018-09-30 13F MERCK COM 58933Y105 5,715 0 0.00 405 16.71 0.1589
2018-08-09 2018-06-30 13F MERCK COM 58933Y105 5,715 900 18.69 347 32.44 0.1472
2018-05-07 2018-03-31 13F/A-1 MERCK COM 58933Y105 4,815 -148 -2.98 262 -6.09 0.1166
2018-05-07 2018-03-31 13F MERCK COM 58933Y105 4,963 0 279
2018-02-02 2017-12-31 13F MERCK & CO INC COM COM 58933Y105 4,963 158 3.29 279 -9.42 0.1200
2017-11-06 2017-09-30 13F MERCK & CO INC COM COM 58933Y105 4,805 -615 -11.35 308 -11.24 0.1405
2017-08-14 2017-06-30 13F MERCK & CO INC COM COM 58933Y105 5,420 5,420 347 0.1631
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.