Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionOxford Financial Group Ltd
Latest Disclosed Ownership4,165 shares
Latest Disclosed Value $ 501,008
Oxford Financial Group Ltd reports 16.01% decrease in ownership of MRK / Merck & Co., Inc.

On May 6, 2026 - Oxford Financial Group Ltd filed a 13F-HR form disclosing ownership of 4,165 shares of Merck & Co., Inc. (MX:MRK) valued at $501,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,959 shares of Merck & Co., Inc.. This represents a change in shares of -16.01% 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 4,165 -794 -16.01 501 -3.84 0.0270
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 4,959 -202 -3.91 522 20.32 0.0287
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 5,161 948 22.50 433 30.03 0.0245
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 4,213 -325 -7.16 334 -18.18 0.0198
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 4,538 -1,271 -21.88 407 -29.46 0.0286
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 5,809 -45 -0.77 578 -13.10 0.0374
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 5,854 -2,846 -32.71 665 -38.35 0.0421
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 8,700 2,177 33.37 1,077 25.23 0.0710
2024-05-13 2024-03-31 13F MERCK COM 58933Y105 6,523 419 6.86 861 29.32 0.0597
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 6,104 -567 -8.50 665 -3.06 0.0488
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 6,671 -2,262 -25.32 687 -33.40 0.0594
2023-08-10 2023-06-30 13F MERCK COM 58933Y105 8,933 2,339 35.47 1,031 46.93 0.0980
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 6,594 117 1.81 702 -2.37 0.0787
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 6,477 947 17.12 719 50.84 0.0837
2022-11-02 2022-09-30 13F MERCK COM 58933Y105 5,530 -1,783 -24.38 476 -28.64 0.0716
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 7,313 1,938 36.06 667 51.25 0.0984
2022-05-13 2022-03-31 13F MERCK COM 58933Y105 5,375 17 0.32 441 7.30 0.0559
2022-02-10 2021-12-31 13F MERCK COM 58933Y105 5,358 0 0.00 411 2.24 0.0462
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 5,358 0 0.00 402 -3.60 0.0512
2021-08-03 2021-06-30 13F MERCK COM 58933Y105 5,358 -10 -0.19 417 0.72 0.0559
2021-05-10 2021-03-31 13F MERCK & CO. COM 58933Y105 5,368 -415 -7.18 414 -12.47 0.0574
2021-02-10 2020-12-31 13F MERCK & CO. COM 58933Y105 5,783 377 6.97 473 5.58 0.0685
2020-11-12 2020-09-30 13F MERCK & CO. COM 58933Y105 5,406 48 0.90 448 8.21 0.0723
2020-08-05 2020-06-30 13F MERCK & CO. COM 58933Y105 5,358 -41 -0.76 414 -0.24 0.0702
2020-05-12 2020-03-31 13F MERCK & CO. COM 58933Y105 5,399 5,399 415 0.0829
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.