Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionOrion Capital Management LLC
Latest Disclosed Ownership7,906 shares
Latest Disclosed Value $ 951,040
Orion Capital Management LLC reports 1.30% decrease in ownership of MRK / Merck & Co., Inc.

On May 14, 2026 - Orion Capital Management LLC filed a 13F-HR form disclosing ownership of 7,906 shares of Merck & Co., Inc. (MX:MRK) valued at $951,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 8,010 shares of Merck & Co., Inc.. This represents a change in shares of -1.30% 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)
2026-05-14 2026-03-31 13F MERCK COM 58933Y105 7,906 -104 -1.30 951 12.81 0.3269
2026-02-03 2025-12-31 13F MERCK COM 58933Y105 8,010 20 0.25 843 25.82 0.2835
2025-10-31 2025-09-30 13F MERCK COM 58933Y105 7,990 -2,840 -26.22 671 -21.82 0.2330
2025-07-31 2025-06-30 13F MERCK COM 58933Y105 10,830 -159 -1.45 857 -13.08 0.3261
2025-05-14 2025-03-31 13F MERCK COM 58933Y105 10,989 5,334 94.32 986 75.44 0.4156
2025-02-18 2024-12-31 13F MERCK COM 58933Y105 5,655 120 2.17 563 -10.51 0.2470
2024-11-18 2024-09-30 13F MERCK COM 58933Y105 5,535 0 0.00 629 -8.32 0.3050
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 5,535 -700 -11.23 685 -16.67 0.3596
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 6,235 0 0.00 823 21.06 0.4369
2024-02-06 2023-12-31 13F MERCK COM 58933Y105 6,235 -293 -4.49 680 1.04 0.3980
2023-11-16 2023-09-30 13F MERCK COM 58933Y105 6,528 -650 -9.06 672 -18.84 0.4363
2023-08-08 2023-06-30 13F MERCK COM 58933Y105 7,178 -800 -10.03 828 -2.36 0.5440
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 7,978 0 0.00 849 -4.18 0.5680
2023-01-23 2022-12-31 13F MERCK & COM 58933Y105 7,978 0 0.00 885 28.82 0.6489
2022-10-27 2022-09-30 13F MERCK COM 58933Y105 7,978 2,775 53.33 687 44.94 0.5525
2022-07-22 2022-06-30 13F MERCK COM 58933Y105 5,203 200 4.00 474 15.61 0.3673
2022-05-11 2022-03-31 13F MERCK COM 58933Y105 5,003 773 18.27 410 26.54 0.2467
2022-02-07 2021-12-31 13F MERCK COM 58933Y105 4,230 500 13.40 324 15.71 0.1841
2021-10-25 2021-09-30 13F MERCK COM 58933Y105 3,730 0 0.00 280 -3.45 0.1693
2021-08-09 2021-06-30 13F MERCK COM 58933Y105 3,730 30 0.81 290 1.75 0.1804
2021-05-14 2021-03-31 13F MERCK & CO. COM 58933Y105 3,700 2,980 413.89 285 383.05 0.1990
2021-02-23 2020-12-31 13F MERCK & CO INC COM COM 58933Y105 720 720 59 0.0436
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.