Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionGryphon Financial Partners LLC
Latest Disclosed Ownership13,352 shares
Latest Disclosed Value $ 1,606,075
Gryphon Financial Partners LLC reports 13.88% increase in ownership of MRK / Merck & Co., Inc.

On May 6, 2026 - Gryphon Financial Partners LLC filed a 13F-HR form disclosing ownership of 13,352 shares of Merck & Co., Inc. (MX:MRK) valued at $1,606,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 11,725 shares of Merck & Co., Inc.. This represents a change in shares of 13.88% 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 13,352 1,627 13.88 1,606 30.15 0.1279
2026-01-08 2025-12-31 13F MERCK COM 58933Y105 11,725 730 6.64 1,234 33.84 0.1320
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 10,995 -985 -8.22 923 -2.74 0.1052
2025-08-07 2025-06-30 13F MERCK COM 58933Y105 11,980 -3,916 -24.64 948 -33.52 0.1238
2025-05-12 2025-03-31 13F MERCK COM 58933Y105 15,896 -938 -5.57 1,427 -14.81 0.2057
2025-02-06 2024-12-31 13F MERCK COM 58933Y105 16,834 342 2.07 1,675 -10.58 0.2392
2024-11-08 2024-09-30 13F MERCK COM 58933Y105 16,492 760 4.83 1,873 -3.85 0.2531
2024-08-07 2024-06-30 13F MERCK COM 58933Y105 15,732 875 5.89 1,948 -0.66 0.2916
2024-05-01 2024-03-31 13F MERCK COM 58933Y105 14,857 927 6.65 1,960 36.49 0.3258
2024-02-13 2023-12-31 13F/A-1 MERCK COM 58933Y105 13,930 6,421 85.51 1,436 85.77 0.2537
2024-02-06 2023-12-31 13F MERCK COM 58933Y105 13,930 6,421 1,436 0.2537
2023-11-07 2023-09-30 13F MERCK COM 58933Y105 7,509 -238 -3.07 773 -13.44 0.1794
2023-08-08 2023-06-30 13F MERCK COM 58933Y105 7,747 -122 -1.55 894 6.69 0.1935
2023-05-03 2023-03-31 13F MERCK COM 58933Y105 7,869 -217 -2.68 837 -6.69 0.1905
2023-02-08 2022-12-31 13F MERCK COM 58933Y105 8,086 84 1.05 897 30.19 0.2135
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 8,002 1,712 27.22 689 20.03 0.1736
2022-07-28 2022-06-30 13F MERCK COM 58933Y105 6,290 -486 -7.17 574 3.24 0.1393
2022-05-05 2022-03-31 13F MERCK COM 58933Y105 6,776 105 1.57 556 8.59 0.1132
2022-02-01 2021-12-31 13F MERCK COM 58933Y105 6,671 53 0.80 512 3.02 0.0970
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 6,618 -666 -9.14 497 -14.75 0.1104
2021-08-13 2021-06-30 13F MERCK &CO. COM 58933Y105 7,284 596 8.91 583 12.98 0.1311
2021-05-05 2021-03-31 13F MERCK &CO. COM 58933Y105 6,688 40 0.60 516 -4.97 0.1172
2021-02-10 2020-12-31 13F MERCK &CO. COM 58933Y105 6,648 -39 -0.58 543 -1.99 0.1399
2020-11-16 2020-09-30 13F MERCK &CO. COM 58933Y105 6,687 144 2.20 554 9.49 0.1637
2020-08-13 2020-06-30 13F MERCK &CO. COM 58933Y105 6,543 -44 -0.67 506 0.00 0.1568
2020-05-05 2020-03-31 13F MERCK &CO. COM 58933Y105 6,587 23 0.35 506 -15.24 0.1864
2020-02-06 2019-12-31 13F MERCK COM 58933Y105 6,564 -37 -0.56 597 7.37 0.1549
2019-11-07 2019-09-30 13F MERCK COM 58933Y105 6,601 165 2.56 556 3.15 0.1604
2019-08-09 2019-06-30 13F MERCK COM 58933Y105 6,436 -243 -3.64 539 -3.06 0.1552
2019-05-07 2019-03-31 13F MERCK COM 58933Y105 6,679 73 1.11 556 10.10 0.1640
2019-02-11 2018-12-31 13F MERCK COM 58933Y105 6,606 154 2.39 505 10.26 0.1284
2018-11-06 2018-09-30 13F MERCK COM 58933Y105 6,452 2,567 66.07 458 94.89 0.1367
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 3,885 -230 -5.59 235 4.91 0.1061
2018-05-14 2018-03-31 13F MERCK COM 58933Y105 4,115 -7 -0.17 224 -3.45 0.1147
2018-02-09 2017-12-31 13F MERCK COM 58933Y105 4,122 4,122 232 0.1319
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.