默克公司
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAsset Management Group, Inc.
Latest Disclosed Ownership6,915 shares
Latest Disclosed Value $ 831,811
Asset Management Group, Inc. reports 2.84% increase in ownership of MRK / Merck & Co., Inc.

On May 15, 2026 - Asset Management Group, Inc. filed a 13F-HR form disclosing ownership of 6,915 shares of Merck & Co., Inc. (MX:MRK) valued at $831,811 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,724 shares of Merck & Co., Inc.. This represents a change in shares of 2.84% 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)
2026-05-15 2026-03-31 13F MERCK COM 58933Y105 6,915 191 2.84 832 17.54 0.1340
2026-02-17 2025-12-31 13F MERCK COM 58933Y105 6,724 -156 -2.27 708 22.53 0.1145
2025-11-14 2025-09-30 13F MERCK COM 58933Y105 6,880 62 0.91 577 7.05 0.0945
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 6,818 -82 -1.19 540 -12.92 0.0941
2025-05-14 2025-03-31 13F MERCK COM 58933Y105 6,900 51 0.74 619 -9.10 0.1144
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 6,849 44 0.65 681 -11.79 0.1211
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 6,805 38 0.56 773 -7.77 0.1353
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 6,767 247 3.79 838 -2.67 0.1561
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 6,520 70 1.09 860 22.33 0.1615
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 6,450 -261 -3.89 703 1.88 0.1409
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 6,711 41 0.61 691 -10.27 0.1520
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 6,670 39 0.59 770 9.08 0.1634
2023-05-15 2023-03-31 13F MERCK COM 58933Y105 6,631 39 0.59 705 -3.56 0.1573
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 6,592 41 0.63 731 29.61 0.1718
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 6,551 914 16.21 564 9.73 0.1409
2022-08-15 2022-06-30 13F MERCK COM 58933Y105 5,637 1,320 30.58 514 45.20 0.1233
2022-05-16 2022-03-31 13F MERCK COM 58933Y105 4,317 32 0.75 354 7.93 0.0741
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 4,285 -274 -6.01 328 -4.09 0.0645
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 4,559 -112 -2.40 342 -5.79 0.0702
2021-08-16 2021-06-30 13F Merck SK 58933Y105 4,671 4,671 363 0.0751
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.