Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionCamden Capital, LLC
Latest Disclosed Ownership25,914 shares
Latest Disclosed Value $ 3,117,212
Camden Capital, LLC reports 19.64% increase in ownership of MRK / Merck & Co., Inc.

On May 11, 2026 - Camden Capital, LLC filed a 13F-HR form disclosing ownership of 25,914 shares of Merck & Co., Inc. (MX:MRK) valued at $3,117,212 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 21,660 shares of Merck & Co., Inc.. This represents a change in shares of 19.64% 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)
2026-05-11 2026-03-31 13F MERCK & CO. INC COM Stock 58933Y105 25,914 4,254 19.64 3,117 36.71 0.2044
2026-01-30 2025-12-31 13F MERCK COM 58933Y105 21,660 -5,511 -20.28 2,280 0.00 0.1435
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 27,171 8,746 47.47 2,280 56.38 0.1565
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 18,425 1,156 6.69 1,459 -5.94 0.1372
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 17,269 -2,212 -11.35 1,550 -20.02 0.1627
2025-01-29 2024-12-31 13F MERCK COM 58933Y105 19,481 4,578 30.72 1,938 14.54 0.2105
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 14,903 3,324 28.71 1,692 18.07 0.1827
2024-08-06 2024-06-30 13F MERCK COM 58933Y105 11,579 -1,978 -14.59 1,433 -19.85 0.1142
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 13,557 -2,721 -16.72 1,789 0.79 0.1570
2024-02-05 2023-12-31 13F MERCK COM 58933Y105 16,278 9,190 129.66 1,775 143.35 0.1796
2023-11-03 2023-09-30 13F MERCK COM 58933Y105 7,088 1,227 20.93 730 7.84 0.0859
2023-08-09 2023-06-30 13F MERCK COM 58933Y105 5,861 2,061 54.24 676 67.33 0.0769
2023-05-11 2023-03-31 13F MERCK COM 58933Y105 3,800 290 8.26 404 3.86 0.0597
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 3,510 -1,688 -32.47 389 -13.17 0.0617
2022-11-08 2022-09-30 13F MERCK COM 58933Y105 5,198 1,505 40.75 448 32.94 0.1040
2022-08-03 2022-06-30 13F MERCK COM 58933Y105 3,693 -3,286 -47.08 337 -41.19 0.0879
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 6,979 319 4.79 573 12.35 0.1235
2022-02-28 2021-12-31 13F/A-1 MERCK COM 58933Y105 6,660 -4,182 -38.57 510 -37.35 0.1094
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 11,378 536 872 0.1508
2021-11-03 2021-09-30 13F MERCK COM 58933Y105 10,842 2,746 33.92 814 29.21 0.1625
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 8,096 1,993 32.66 630 33.76 0.1454
2021-05-10 2021-03-31 13F MERCK & CO. COM 58933Y105 6,103 487 8.67 471 2.61 0.1264
2021-02-04 2020-12-31 13F MERCK & CO. COM 58933Y105 5,616 470 9.13 459 7.49 0.1477
2020-10-30 2020-09-30 13F MERCK & CO. COM 58933Y105 5,146 1,652 47.28 427 58.15 0.1685
2020-08-11 2020-06-30 13F MERCK & CO. COM 58933Y105 3,494 -222 -5.97 270 -5.59 0.1257
2020-04-13 2020-03-31 13F MERCK & CO. COM 58933Y105 3,716 -1,501 -28.77 286 -39.66 0.1586
2020-02-10 2019-12-31 13F MERCK COM 58933Y105 5,217 5,217 474 0.2267
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.