Merck & Co., Inc.
US ˙ NYSE ˙ US58933Y1055

SecurityMRK / Merck & Co., Inc.
InstitutionSPC Financial, Inc.
Latest Disclosed Ownership16,047 shares
Latest Disclosed Value $ 1,346,857
SPC Financial, Inc. reports 1.65% increase in ownership of MRK / Merck & Co., Inc.

On November 5, 2025 - SPC Financial, Inc. filed a 13F-HR form disclosing ownership of 16,047 shares of Merck & Co., Inc. (US:MRK) valued at $1,346,825 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 25, 2025 disclosing 15,786 shares of Merck & Co., Inc.. This represents a change in shares of 1.65% during the quarter. The current value of the position is $1,938,317 USD.

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)
2025-11-05 2025-09-30 13F MERCK COM 58933Y105 16,047 261 1.65 1,347 7.77 0.1052
2025-07-25 2025-06-30 13F MERCK COM 58933Y105 15,786 -4,577 -22.48 1,250 -31.64 0.1047
2025-05-08 2025-03-31 13F MERCK COM 58933Y105 20,363 1,632 8.71 1,828 -1.93 0.1607
2025-02-06 2024-12-31 13F MERCK COM 58933Y105 18,731 -833 -4.26 1,863 -16.12 0.1625
2024-10-16 2024-09-30 13F MERCK COM 58933Y105 19,564 -641 -3.17 2,222 -11.20 0.1957
2024-08-21 2024-06-30 13F/A-1 MERCK COM 58933Y105 20,205 533 2.71 2,501 -3.62 0.2315
2024-08-02 2024-06-30 13F MERCK COM 58933Y105 20,205 533 2,501 0.2315
2024-05-03 2024-03-31 13F MERCK COM 58933Y105 19,672 4,643 30.89 2,596 58.42 0.2439
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 15,029 1,031 7.37 1,638 13.67 0.1670
2023-11-09 2023-09-30 13F MERCK COM 58933Y105 13,998 1,679 13.63 1,441 1.41 0.1617
2023-08-03 2023-06-30 13F MERCK COM 58933Y105 12,319 1,187 10.66 1,421 20.02 0.1538
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 11,132 511 4.81 1,184 0.51 0.1351
2023-02-01 2022-12-31 13F MERCK COM 58933Y105 10,621 563 5.60 1,178 36.03 0.1393
2022-10-27 2022-09-30 13F MERCK COM 58933Y105 10,058 509 5.33 866 -0.57 0.1078
2022-08-03 2022-06-30 13F MERCK COM 58933Y105 9,549 1,454 17.96 871 31.17 0.1075
2022-05-02 2022-03-31 13F MERCK COM 58933Y105 8,095 293 3.76 664 11.04 0.0771
2022-01-31 2021-12-31 13F MERCK COM 58933Y105 7,802 65 0.84 598 2.93 0.0667
2021-11-05 2021-09-30 13F MERCK COM 58933Y105 7,737 426 5.83 581 2.11 0.0720
2021-07-29 2021-06-30 13F MERCK COM 58933Y105 7,311 -352 -4.59 569 -3.72 0.0690
2021-04-22 2021-03-31 13F MERCK & CO. COM 58933Y105 7,663 1,556 25.48 591 18.20 0.0780
2021-01-29 2020-12-31 13F MERCK & CO. COM 58933Y105 6,107 -488 -7.40 500 -8.59 0.0703
2020-10-26 2020-09-30 13F MERCK & CO. COM 58933Y105 6,595 224 3.52 547 10.95 0.0943
2020-07-24 2020-06-30 13F MERCK & CO. COM 58933Y105 6,371 -2,193 -25.61 493 -25.19 0.1027
2020-04-16 2020-03-31 13F MERCK & CO. COM 58933Y105 8,564 -26,026 -75.24 659 -79.05 0.1681
2020-01-23 2019-12-31 13F MERCK COM 58933Y105 34,590 -17 -0.05 3,146 8.00 0.5758
2019-10-18 2019-09-30 13F MERCK COM 58933Y105 34,607 -665 -1.89 2,913 -1.52 0.6157
2019-08-01 2019-06-30 13F MERCK COM 58933Y105 35,272 2,061 6.21 2,958 7.10 0.5956
2019-04-26 2019-03-31 13F MERCK COM 58933Y105 33,211 5,730 20.85 2,762 31.52 0.5914
2019-01-25 2018-12-31 13F MERCK COM 58933Y105 27,481 -600 -2.14 2,100 5.42 0.5797
2018-10-25 2018-09-30 13F MERCK COM 58933Y105 28,081 49 0.17 1,992 17.04 0.3986
2018-07-20 2018-06-30 13F MERCK COM 58933Y105 28,032 -268 -0.95 1,702 10.38 0.3715
2018-04-30 2018-03-31 13F MERCK COM 58933Y105 28,300 100 0.35 1,542 -2.84 0.3514
2018-01-16 2017-12-31 13F MERCK COM 58933Y105 28,200 -4,040 -12.53 1,587 -23.11 0.3675
2017-10-27 2017-09-30 13F MERCK COM 58933Y105 32,240 1,044 3.35 2,064 3.25 0.5110
2017-07-25 2017-06-30 13F MERCK COM 58933Y105 31,196 -78 -0.25 1,999 0.60 0.5297
2017-04-25 2017-03-31 13F MERCK COM 58933Y105 31,274 2,027 6.93 1,987 15.39 0.5551
2017-02-02 2016-12-31 13F MERCK COM 58933Y105 29,247 29,247 1,722 0.5248
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.