Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionRoble, Belko & Company, Inc
Latest Disclosed Ownership476 shares
Latest Disclosed Value $ 57
Roble, Belko & Company, Inc reports 0.21% increase in ownership of MRK / Merck & Co., Inc.

On April 16, 2026 - Roble, Belko & Company, Inc filed a 13F-HR form disclosing ownership of 476 shares of Merck & Co., Inc. (MX:MRK) valued at $57 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 475 shares of Merck & Co., Inc..

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)
2026-04-16 2026-03-31 13F MERCK COM 58933Y105 476 1 0.21 0 0.0072
2026-01-12 2025-12-31 13F MERCK COM 58933Y105 475 52 12.29 0 0.0066
2025-10-24 2025-09-30 13F MERCK COM 58933Y105 423 -82 -16.24 0 0.0047
2025-08-04 2025-06-30 13F MERCK COM 58933Y105 505 -72 -12.48 0 0.0058
2025-05-08 2025-03-31 13F MERCK COM 58933Y105 577 251 76.99 0 0.0083
2025-01-14 2024-12-31 13F MERCK COM 58933Y105 326 0 0.00 0 0.0051
2024-10-15 2024-09-30 13F MERCK COM 58933Y105 326 0 0.00 0 0.0058
2024-08-08 2024-06-30 13F MERCK COM 58933Y105 326 0 0.00 0 0.0067
2024-04-11 2024-03-31 13F MERCK COM 58933Y105 326 85 35.27 0 0.0074
2024-02-01 2023-12-31 13F MERCK COM 58933Y105 241 49 25.52 0 0.0049
2023-11-01 2023-09-30 13F MERCK COM 58933Y105 192 0 0.00 0 0.0041
2023-08-04 2023-06-30 13F MERCK COM 58933Y105 192 -2,386 -92.55 0 0.0044
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 2,578 -2,386 -48.07 0 0.0560
2023-02-08 2022-12-31 13F MERCK COM 58933Y105 4,964 0 0.00 1 -100.00 0.1172
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 4,964 0 0.00 427 -5.74 0.1037
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 4,964 0 0.00 453 11.30 0.1029
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 4,964 -79 -1.57 407 5.44 0.0774
2022-02-07 2021-12-31 13F MERCK COM 58933Y105 5,043 79 1.59 386 3.49 0.0725
2021-11-03 2021-09-30 13F MERCK COM 58933Y105 4,964 0 0.00 373 -3.37 0.0767
2021-08-02 2021-06-30 13F MERCK COM 58933Y105 4,964 0 0.00 386 0.78 0.0873
2021-05-12 2021-03-31 13F MERCK COM 58933Y105 4,964 0 0.00 383 -5.67 0.0924
2021-02-05 2020-12-31 13F MERCK COM 58933Y105 4,964 0 0.00 406 -1.46 0.1058
2020-11-10 2020-09-30 13F MERCK COM 58933Y105 4,964 -403 -7.51 412 -0.72 0.1208
2020-08-10 2020-06-30 13F MERCK COM 58933Y105 5,367 403 8.12 415 8.64 0.1244
2020-05-05 2020-03-31 13F MERCK COM 58933Y105 4,964 0 0.00 382 -15.30 0.1235
2020-01-13 2019-12-31 13F MERCK COM 58933Y105 4,964 0 0.00 451 7.89 0.1249
2019-11-13 2019-09-30 13F MERCK COM 58933Y105 4,964 0 0.00 418 0.48 0.1227
2019-08-13 2019-06-30 13F MERCK COM 58933Y105 4,964 0 0.00 416 0.73 0.1286
2019-05-10 2019-03-31 13F MERCK COM 58933Y105 4,964 -923 -15.68 413 -8.22 0.1415
2019-02-13 2018-12-31 13F MERCK COM 58933Y105 5,887 5,695 2,966.15 450 3,114.29 0.1727
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 192 0 0.00 14 16.67 0.0051
2018-08-08 2018-06-30 13F MERCK COM 58933Y105 192 0 0.00 12 20.00 0.0046
2018-05-14 2018-03-31 13F MERCK COM 58933Y105 192 -1,000 -83.89 10 -85.07 0.0039
2018-01-30 2017-12-31 13F MERCK COM 58933Y105 1,192 1,000 520.83 67 458.33 0.0274
2017-11-08 2017-09-30 13F MERCK COM 58933Y105 192 -103 -34.92 12 -36.84 0.0053
2017-08-11 2017-06-30 13F MERCK COM 58933Y105 295 0 0.00 19 0.00 0.0091
2017-05-12 2017-03-31 13F MERCK COM 58933Y105 295 0 0.00 19 11.76 0.0094
2017-01-18 2016-12-31 13F MERCK & CO INC COM 58933Y105 295 -1,807 -85.97 17 -87.02 0.0089
2016-11-01 2016-09-30 13F MERCK & CO INC COM 58933Y105 2,102 300 16.65 131 25.96 0.0701
2016-08-11 2016-06-30 13F MERCK & CO INC COM 58933Y105 1,802 1,000 124.69 104 147.62 0.0575
2016-05-09 2016-03-31 13F MERCK & CO INC COM 58933Y105 802 -370 -31.57 42 -32.26 0.0238
2016-02-04 2015-12-31 13F MERCK & CO INC COM 58933Y105 1,172 370 46.13 62 55.00 0.0373
2015-11-12 2015-09-30 13F MERCK & CO INC COM 58933Y105 802 0 0.00 40 -13.04 0.0245
2015-08-12 2015-06-30 13F MERCK & CO INC COM 58933Y105 802 0 0.00 46 0.00 0.0267
2015-06-04 2015-03-31 13F/A-1 MERCK CS 58933Y105 802 802 46 0.0269
2015-05-14 2015-03-31 13F MERCK CS 58933Y105 802 46
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.