Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionBellecapital International Ltd.
Latest Disclosed Ownership2,871 shares
Latest Disclosed Value $ 345,353
Bellecapital International Ltd. reports 5.06% decrease in ownership of MRK / Merck & Co., Inc.

On May 12, 2026 - Bellecapital International Ltd. filed a 13F-HR/A form disclosing ownership of 2,871 shares of Merck & Co., Inc. (MX:MRK) valued at $345,353 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 3,024 shares of Merck & Co., Inc.. This represents a change in shares of -5.06% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F/A-1 MERCK COM 58933Y105 2,871 -153 -5.06 345 8.49 0.0623
2026-04-17 2026-03-31 13F MERCK COM 58933Y105 2,871 -153 345 0.0641
2026-02-02 2025-12-31 13F MERCK COM 58933Y105 3,024 109 3.74 318 30.33 0.0565
2025-10-17 2025-09-30 13F MERCK COM 58933Y105 2,915 300 11.47 245 17.87 0.0395
2025-07-29 2025-06-30 13F MERCK COM 58933Y105 2,615 0 0.00 207 -11.54 0.0367
2025-04-16 2025-03-31 13F MERCK COM 58933Y105 2,615 275 11.75 235 0.86 0.0464
2025-02-06 2024-12-31 13F MERCK COM 58933Y105 2,340 -19 -0.81 233 -13.11 0.0411
2024-10-21 2024-09-30 13F MERCK COM 58933Y105 2,359 19 0.81 268 -7.61 0.0532
2024-07-19 2024-06-30 13F MERCK COM 58933Y105 2,340 0 0.00 290 -6.17 0.0614
2024-05-03 2024-03-31 13F MERCK COM 58933Y105 2,340 0 0.00 309 20.78 0.0681
2024-01-22 2023-12-31 13F MERCK COM 58933Y105 2,340 -91 -3.74 255 2.00 0.0577
2023-10-17 2023-09-30 13F MERCK COM 58933Y105 2,431 -369 -13.18 250 -22.60 0.0627
2023-07-07 2023-06-30 13F MERCK COM 58933Y105 2,800 -690 -19.77 323 -12.94 0.0781
2023-04-25 2023-03-31 13F MERCK COM 58933Y105 3,490 0 0.00 371 -4.13 0.0923
2023-02-10 2022-12-31 13F MERCK COM 58933Y105 3,490 0 0.00 387 28.57 0.1088
2022-11-07 2022-09-30 13F MERCK COM 58933Y105 3,490 0 0.00 301 -5.35 0.0919
2022-07-27 2022-06-30 13F MERCK COM 58933Y105 3,490 0 0.00 318 11.19 0.0887
2022-07-27 2022-03-31 13F/A-1 MERCK COM 58933Y105 3,490 0 0.00 286 7.12 0.0907
2022-05-03 2022-03-31 13F MERCK COM 58933Y105 3,490 0 286 0.0831
2022-01-20 2021-12-31 13F MERCK COM 58933Y105 3,490 0 0.00 267 1.91 0.0761
2021-10-21 2021-09-30 13F MERCK COM 58933Y105 3,490 0 0.00 262 -3.32 0.0800
2021-07-28 2021-06-30 13F MERCK COM 58933Y105 3,490 -5,684 -61.96 271 -61.67 0.0824
2021-04-13 2021-03-31 13F MERCK COM 58933Y105 9,174 -3,016 -24.74 707 -29.09 0.2207
2021-01-14 2020-12-31 13F MERCK COM 58933Y105 12,190 1,824 17.60 997 15.93 0.3325
2020-10-16 2020-09-30 13F MERCK COM 58933Y105 10,366 1,641 18.81 860 27.41 0.3935
2020-07-16 2020-06-30 13F MERCK COM 58933Y105 8,725 2,040 30.52 675 31.32 0.3167
2020-04-24 2020-03-31 13F MERCK COM 58933Y105 6,685 -594 -8.16 514 -22.36 0.3289
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 7,279 3,042 71.80 662 85.43 0.3394
2019-10-22 2019-09-30 13F MERCK COM 58933Y105 4,237 1,012 31.38 357 32.22 0.2142
2019-07-22 2019-06-30 13F MERCK COM 58933Y105 3,225 425 15.18 270 15.88 0.1679
2019-04-23 2019-03-31 13F MERCK COM 58933Y105 2,800 0 0.00 233 8.88 0.1482
2019-02-07 2018-12-31 13F MERCK COM 58933Y105 2,800 2,800 214 0.1525
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.