Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionJB Capital LLC
Latest Disclosed Ownership162,408 shares
Latest Disclosed Value $ 19,536,088
JB Capital LLC reports 18.31% increase in ownership of MRK / Merck & Co., Inc.

On April 27, 2026 - JB Capital LLC filed a 13F-HR form disclosing ownership of 162,408 shares of Merck & Co., Inc. (MX:MRK) valued at $19,536,088 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 137,269 shares of Merck & Co., Inc.. This represents a change in shares of 18.31% 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)
2026-04-27 2026-03-31 13F MERCK COM 58933Y105 162,408 25,139 18.31 19,536 35.22 0.7890
2026-01-20 2025-12-31 13F MERCK COM 58933Y105 137,269 9,354 7.31 14,449 34.59 0.5898
2025-10-20 2025-09-30 13F MERCK COM 58933Y105 127,915 13,151 11.46 10,736 18.17 0.4630
2025-07-24 2025-06-30 13F MERCK COM 58933Y105 114,764 8,414 7.91 9,085 -4.83 0.4404
2025-04-23 2025-03-31 13F MERCK COM 58933Y105 106,350 5,455 5.41 9,546 -4.90 0.5262
2025-01-24 2024-12-31 13F MERCK COM 58933Y105 100,895 5,555 5.83 10,037 -7.29 0.5617
2024-10-31 2024-09-30 13F MERCK COM 58933Y105 95,340 3,235 3.51 10,827 -5.05 0.6217
2024-07-24 2024-06-30 13F MERCK COM 58933Y105 92,105 2,248 2.50 11,402 -3.83 0.7143
2024-04-30 2024-03-31 13F MERCK COM 58933Y105 89,857 804 0.90 11,857 22.13 0.7894
2024-01-22 2023-12-31 13F MERCK COM 58933Y105 89,053 12,716 16.66 9,709 23.54 0.7167
2023-10-25 2023-09-30 13F MERCK COM 58933Y105 76,337 10,484 15.92 7,859 3.42 0.6632
2023-07-25 2023-06-30 13F MERCK COM 58933Y105 65,853 1,568 2.44 7,599 11.10 0.6412
2023-04-25 2023-03-31 13F MERCK COM 58933Y105 64,285 386 0.60 6,839 -3.53 0.6245
2023-01-23 2022-12-31 13F MERCK COM 58933Y105 63,899 1,704 2.74 7,090 32.36 0.6940
2022-10-14 2022-09-30 13F MERCK COM 58933Y105 62,195 46,445 294.89 5,356 272.98 0.5879
2022-07-28 2022-06-30 13F Merck COM 58933Y105 15,750 1,095 7.47 1,436 19.37 0.1540
2022-04-19 2022-03-31 13F Merck COM 58933Y105 14,655 1,199 8.91 1,203 -99.88 0.1171
2022-02-02 2021-12-31 13F Merck COM 58933Y105 13,456 9,781 266.15 1,031,298 373,558.70 0.1009
2021-12-08 2021-09-30 13F Merck COMMON STOCK 58933Y105 3,675 3,675 276 0.0357
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.