Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionRoundview Capital LLC
Latest Disclosed Ownership41,874 shares
Latest Disclosed Value $ 5,037,024
Roundview Capital LLC reports 1.27% increase in ownership of 6MK / Merck & Co., Inc.

On May 8, 2026 - Roundview Capital LLC filed a 13F-HR form disclosing ownership of 41,874 shares of Merck & Co., Inc. (BG:6MK) valued at $5,037,024 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 41,349 shares of Merck & Co., Inc.. This represents a change in shares of 1.27% 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)
2026-05-08 2026-03-31 13F MERCK COM 58933Y105 41,874 525 1.27 5,037 15.74 0.3138
2026-02-09 2025-12-31 13F MERCK COM 58933Y105 41,349 -94 -0.23 4,352 25.13 0.2677
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 41,443 -190 -0.46 3,478 5.55 0.2199
2025-07-23 2025-06-30 13F MERCK COM 58933Y105 41,633 -2,569 -5.81 3,296 -16.94 0.2203
2025-05-06 2025-03-31 13F MERCK COM 58933Y105 44,202 -1,803 -3.92 3,968 -13.31 0.2863
2025-02-12 2024-12-31 13F MERCK COM 58933Y105 46,005 254 0.56 4,577 -11.92 0.3195
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 45,751 78 0.17 5,195 -8.12 0.3764
2024-08-09 2024-06-30 13F MERCK COM 58933Y105 45,673 49 0.11 5,654 -6.08 0.4453
2024-05-06 2024-03-31 13F MERCK COM 58933Y105 45,624 816 1.82 6,020 23.26 0.4921
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 44,808 827 1.88 4,885 7.89 0.4504
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 43,981 -11,167 -20.25 4,528 -28.85 0.4553
2023-08-09 2023-06-30 13F MERCK COM 58933Y105 55,148 420 0.77 6,364 9.29 0.6213
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 54,728 728 1.35 5,823 -2.82 0.6090
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 54,000 814 1.53 5,991 30.81 0.6836
2022-11-10 2022-09-30 13F MERCK COM 58933Y105 53,186 431 0.82 4,580 -4.78 0.5782
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 52,755 214 0.41 4,810 11.58 0.5759
2022-05-17 2022-03-31 13F/A-1 MERCK COM 58933Y105 52,541 -60 -0.11 4,311 6.95 0.4429
2022-05-11 2022-03-31 13F MERCK COM 58933Y105 52,541 -60 4,311 0.4278
2022-02-10 2021-12-31 13F MERCK COM 58933Y105 52,601 1,735 3.41 4,031 5.50 0.4020
2021-11-10 2021-09-30 13F MERCK COM 58933Y105 50,866 -1,020 -1.97 3,821 -5.30 0.4212
2021-08-10 2021-06-30 13F MERCK COM 58933Y105 51,886 -779 -1.48 4,035 -0.62 0.4502
2021-05-14 2021-03-31 13F MERCK COM 58933Y105 52,665 1,477 2.89 4,060 -3.03 0.5109
2021-02-08 2020-12-31 13F MERCK COM 58933Y105 51,188 158 0.31 4,187 -1.09 0.5728
2020-11-05 2020-09-30 13F MERCK COM 58933Y105 51,030 -1,274 -2.44 4,233 4.65 0.6641
2020-08-13 2020-06-30 13F MERCK COM 58933Y105 52,304 1,152 2.25 4,045 2.77 0.6870
2020-05-11 2020-03-31 13F MERCK COM 58933Y105 51,152 1,014 2.02 3,936 -13.68 0.8321
2020-02-10 2019-12-31 13F MERCK COM 58933Y105 50,138 1,369 2.81 4,560 11.08 0.8667
2019-11-12 2019-09-30 13F MERCK COM 58933Y105 48,769 880 1.84 4,105 2.24 0.8860
2019-08-12 2019-06-30 13F MERCK COM 58933Y105 47,889 1,701 3.68 4,015 4.53 0.9042
2019-05-09 2019-03-31 13F MERCK COM 58933Y105 46,188 -166 -0.36 3,841 8.44 0.9127
2019-02-13 2018-12-31 13F MERCK COM 58933Y105 46,354 4,421 10.54 3,542 19.06 0.9932
2018-11-07 2018-09-30 13F Merck & Co Inc Com COM 58933Y105 41,933 852 2.07 2,975 19.29 0.7342
2018-08-10 2018-06-30 13F Merck & Co Inc Com COM 58933Y105 41,081 4,729 13.01 2,494 25.96 0.6538
2018-05-14 2018-03-31 13F Merck & Co Inc Com COM 58933Y105 36,352 -1,992 -5.20 1,980 -8.25 0.5574
2018-02-07 2017-12-31 13F Merck & Co Inc Com COM 58933Y105 38,344 -1,056 -2.68 2,158 -14.47 0.5574
2017-11-13 2017-09-30 13F/A-1 Merck & Co Inc Com COM 58933Y105 39,400 68 0.17 2,523 0.08 0.7217
2017-11-13 2017-09-30 13F Merck & Co Inc Com COM 58933Y105 39,332 0 2,521 735,420.6717
2017-08-11 2017-06-30 13F Merck & Co Inc Com COM 58933Y105 39,332 5,061 14.77 2,521 15.75 0.7354
2017-05-11 2017-03-31 13F Merck & Co Inc Com COM 58933Y105 34,271 -100 -0.29 2,178 7.66 0.6761
2017-02-14 2016-12-31 13F Merck & Co Inc Com COM 58933Y105 34,371 2,399 7.50 2,023 1.40 0.6493
2016-11-14 2016-09-30 13F Merck & Co Inc Com COM 58933Y105 31,972 303 0.96 1,995 9.38 0.7050
2016-08-12 2016-06-30 13F Merck & Co Inc Com COM 58933Y105 31,669 100 0.32 1,824 9.22 0.6713
2016-05-12 2016-03-31 13F Merck & Co Inc Com COM 58933Y105 31,569 -1,150 -3.51 1,670 -3.36 0.6225
2016-02-11 2015-12-31 13F Merck & Co Inc Com COM 58933Y105 32,719 17,925 121.16 1,728 136.39 0.6846
2015-11-12 2015-09-30 13F Merck & Co Inc Com COM 58933Y105 14,794 125 0.85 731 -12.46 0.3135
2015-08-14 2015-06-30 13F Merck & Co Inc Com COM 58933Y105 14,669 0 0.00 835 -0.95 0.3144
2015-05-15 2015-03-31 13F Merck & Co Inc Com COM 58933Y105 14,669 500 3.53 843 4.72 0.3335
2015-02-13 2014-12-31 13F Merck & Co Inc Com COM 58933Y105 14,169 15 0.11 805 -4.05 0.3304
2014-11-14 2014-09-30 13F Merck & Co Inc Com COM 58933Y105 14,154 0 0.00 839 2.44 0.3772
2014-08-08 2014-06-30 13F Merck & Co Inc Com COM 58933Y105 14,154 1,937 15.85 819 18.01 0.3311
2014-04-30 2014-03-31 13F Merck & Co Inc Com COM 58933Y105 12,217 -12,878 -51.32 694 -44.75 0.3370
2014-02-12 2013-12-31 13F Merck & Co Inc Com COM 58933Y105 25,095 -966 -3.71 1,256 1.21 0.5757
2013-11-12 2013-09-30 13F Merck & Co Inc Com COM 58933Y105 26,061 55 0.21 1,241 2.73 0.6445
2013-07-30 2013-06-30 13F Merck & Co Inc Com COM 58933Y105 26,006 26,006 1,208 0.7581
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.