Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionManchester Financial Inc
Latest Disclosed Ownership4,456 shares
Latest Disclosed Value $ 536,051
Manchester Financial Inc reports 1.48% decrease in ownership of MRK / Merck & Co., Inc.

On April 23, 2026 - Manchester Financial Inc filed a 13F-HR form disclosing ownership of 4,456 shares of Merck & Co., Inc. (MX:MRK) valued at $536,051 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,523 shares of Merck & Co., Inc.. This represents a change in shares of -1.48% 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)
2026-04-23 2026-03-31 13F MERCK COM 58933Y105 4,456 -67 -1.48 536 12.61 0.1029
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 4,523 804 21.62 476 52.56
2025-10-15 2025-09-30 13F MERCK COM 58933Y105 3,719 -175 -4.49 312 1.30 0.0623
2025-07-29 2025-06-30 13F MERCK COM 58933Y105 3,894 100 2.64 308 -9.41 0.0645
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 3,794 2 0.05 341 -9.81 0.0767
2025-01-30 2024-12-31 13F MERCK COM 58933Y105 3,792 1 0.03 377 -12.33 0.0826
2024-10-24 2024-09-30 13F MERCK COM 58933Y105 3,791 21 0.56 431 -7.73 0.0934
2024-07-17 2024-06-30 13F MERCK COM 58933Y105 3,770 150 4.14 467 -2.31 0.1149
2024-04-18 2024-03-31 13F MERCK COM 58933Y105 3,620 198 5.79 478 27.88 0.1246
2024-01-25 2023-12-31 13F MERCK COM 58933Y105 3,422 0 0.00 373 5.97 0.1042
2023-11-06 2023-09-30 13F MERCK COM 58933Y105 3,422 0 0.00 352 -10.66 0.1035
2023-07-28 2023-06-30 13F MERCK COM 58933Y105 3,422 10 0.29 395 8.54 0.1120
2023-04-19 2023-03-31 13F MERCK COM 58933Y105 3,412 -33 -0.96 363 -4.97 0.1051
2023-02-08 2022-12-31 13F MERCK COM 58933Y105 3,445 -500 -12.67 382 12.35 0.1034
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 3,945 1,072 37.31 340 29.77 0.0978
2022-07-28 2022-06-30 13F MERCK COM 58933Y105 2,873 2,873 262 0.1014
2021-07-21 2021-06-30 13F MERCK & CO. COM 58933Y105 0 -1,247 -100.00 0 -100.00
2021-05-03 2021-03-31 13F MERCK & CO. COM 58933Y105 1,247 154 14.09 96 7.87 0.0445
2021-01-26 2020-12-31 13F MERCK & CO. COM 58933Y105 1,093 0 0.00 89 -2.20 0.0553
2020-10-15 2020-09-30 13F MERCK & CO. COM 58933Y105 1,093 0 0.00 91 7.06 0.0691
2020-07-13 2020-06-30 13F MERCK & CO. COM 58933Y105 1,093 0 0.00 85 1.19 0.0690
2020-04-20 2020-03-31 13F MERCK & CO. COM 58933Y105 1,093 -126 -10.34 84 -24.32 0.0620
2020-01-17 2019-12-31 13F MERCK COM 58933Y105 1,219 1,219 111 0.0435
2019-10-09 2019-09-30 13F MERCK COM 58933Y105 0 -1,219 -100.00 0 -100.00
2019-07-23 2019-06-30 13F MERCK COM 58933Y105 1,219 1,219 102 0.0459
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.