Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionFoundation Resource Management Inc
Latest Disclosed Ownership202,209 shares
Latest Disclosed Value $ 24,323,721
Foundation Resource Management Inc reports 4.72% increase in ownership of 6MK / Merck & Co., Inc.

On April 21, 2026 - Foundation Resource Management Inc filed a 13F-HR form disclosing ownership of 202,209 shares of Merck & Co., Inc. (BG:6MK) valued at $24,323,721 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 193,095 shares of Merck & Co., Inc.. This represents a change in shares of 4.72% 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)
2026-04-21 2026-03-31 13F MERCK AND COM 58933Y105 202,209 9,114 4.72 24,324 19.67 2.7375
2026-01-22 2025-12-31 13F MERCK AND COM 58933Y105 193,095 2,317 1.21 20,325 26.94 2.7192
2025-10-14 2025-09-30 13F MERCK AND COM 58933Y105 190,778 2,226 1.18 16,012 7.28 2.3005
2025-07-14 2025-06-30 13F MERCK AND COM 58933Y105 188,552 2,355 1.26 14,926 -10.70 2.3081
2025-04-14 2025-03-31 13F MERCK AND COM 58933Y105 186,197 59,369 46.81 16,713 32.47 2.6345
2025-01-14 2024-12-31 13F MERCK AND COM 58933Y105 126,828 -655 -0.51 12,617 -12.85 2.1073
2024-10-10 2024-09-30 13F MERCK AND COM 58933Y105 127,483 -273 -0.21 14,477 -8.47 2.2379
2024-07-10 2024-06-30 13F MERCK AND COM 58933Y105 127,756 -1,062 -0.82 15,816 -6.95 2.5268
2024-04-11 2024-03-31 13F MERCK AND COM 58933Y105 128,818 -67,805 -34.48 16,998 -20.70 2.6700
2024-01-10 2023-12-31 13F MERCK AND COM 58933Y105 196,623 -3,200 -1.60 21,436 4.20 3.4143
2023-10-10 2023-09-30 13F MERCK AND COM 58933Y105 199,823 -3,645 -1.79 20,572 89,339.13 3.4147
2023-07-12 2023-06-30 13F MERCK AND COM 58933Y105 203,468 -655 -0.32 23 9.52 3.9100
2023-04-11 2023-03-31 13F MERCK AND COM 58933Y105 204,123 -1,281 -0.62 22 -4.55 3.5968
2023-01-12 2022-12-31 13F MERCK AND COM 58933Y105 205,404 -291 -0.14 23 -99.88 3.7712
2022-10-13 2022-09-30 13F MERCK AND COM 58933Y105 205,695 2,419 1.19 17,714 -4.42 3.3677
2022-07-15 2022-06-30 13F MERCK AND COM 58933Y105 203,276 -12,090 -5.61 18,533 4.88 3.3042
2022-04-12 2022-03-31 13F MERCK AND COM 58933Y105 215,366 -248 -0.12 17,671 6.93 2.7265
2022-01-21 2021-12-31 13F/A-1 MERCK AND COM 58933Y105 215,614 -4,140 -1.88 16,525 0.12 3.2137
2022-01-12 2021-12-31 13F MERCK AND COM 58933Y105 431,228 211,474 33,049 3.2136
2021-10-12 2021-09-30 13F MERCK AND COM 58933Y105 219,754 -900 -0.41 16,506 -3.81 3.7230
2021-07-13 2021-06-30 13F MERCK AND COM 58933Y105 220,654 -6,599 -2.90 17,160 -2.05 3.8517
2021-04-08 2021-03-31 13F MERCK AND COM 58933Y105 227,253 -3,525 -1.53 17,519 -7.20 4.1691
2021-01-13 2020-12-31 13F MERCK AND COM 58933Y105 230,778 -3,680 -1.57 18,878 -2.93 4.9257
2020-10-07 2020-09-30 13F MERCK AND COM 58933Y105 234,458 -7,142 -2.96 19,448 4.09 5.9341
2020-07-08 2020-06-30 13F MERCK AND COM 58933Y105 241,600 -6,257 -2.52 18,683 -2.03 5.7420
2020-04-08 2020-03-31 13F MERCK AND COM 58933Y105 247,857 -67,809 -21.48 19,070 -33.58 6.8047
2020-01-08 2019-12-31 13F MERCK AND COM 58933Y105 315,666 -10,037 -3.08 28,710 4.71 6.4988
2019-10-03 2019-09-30 13F MERCK AND COM 58933Y105 325,703 -5,026 -1.52 27,418 -1.13 5.9949
2019-07-10 2019-06-30 13F MERCK AND COM 58933Y105 330,729 -1,979 -0.59 27,732 0.22 5.6654
2019-04-11 2019-03-31 13F MERCK AND COM 58933Y105 332,708 -12,137 -3.52 27,671 5.01 5.8022
2019-01-17 2018-12-31 13F MERCK AND COM 58933Y105 344,845 -2,935 -0.84 26,350 6.80 5.6909
2018-10-02 2018-09-30 13F MERCK AND COM 58933Y105 347,780 -128,480 -26.98 24,672 -14.66 4.7689
2018-07-11 2018-06-30 13F MERCK AND COM 58933Y105 476,260 -1,173 -0.25 28,909 11.16 5.6045
2018-04-19 2018-03-31 13F MERCK AND COM 58933Y105 477,433 -119,521 -20.02 26,006 -22.58 5.2286
2018-01-10 2017-12-31 13F MERCK AND COM 58933Y105 596,954 -7,495 -1.24 33,591 -13.21 6.0450
2017-10-11 2017-09-30 13F MERCK AND COM 58933Y105 604,449 -7,696 -1.26 38,703 -1.35 6.4110
2017-07-18 2017-06-30 13F MERCK AND COM 58933Y105 612,145 -505 -0.08 39,232 0.78 7.0303
2017-04-11 2017-03-31 13F MERCK AND COM 58933Y105 612,650 -36,403 -5.61 38,928 1.88 6.8248
2017-01-10 2016-12-31 13F MERCK AND COM 58933Y105 649,053 -3,929 -0.60 38,210 -6.24 6.4670
2016-10-05 2016-09-30 13F MERCK AND COM 58933Y105 652,982 -4,155 -0.63 40,753 7.65 7.2750
2016-07-07 2016-06-30 13F MERCK AND COM 58933Y105 657,137 -300 -0.05 37,858 8.83 7.0470
2016-04-06 2016-03-31 13F MERCK AND COM 58933Y105 657,437 -6,737 -1.01 34,785 -0.85 7.1468
2016-01-19 2015-12-31 13F MERCK AND COM 58933Y105 664,174 -12,002 -1.77 35,082 5.05 7.6060
2015-10-07 2015-09-30 13F MERCK AND COM 58933Y105 676,176 -8,148 -1.19 33,396 -14.28 7.1801
2015-07-13 2015-06-30 13F MERCK AND COM 58933Y105 684,324 -23,103 -3.27 38,959 -4.19 7.0539
2015-04-13 2015-03-31 13F MERCK AND COM 58933Y105 707,427 -94,474 -11.78 40,663 -10.71 6.6826
2015-01-07 2014-12-31 13F MERCK AND COM 58933Y105 801,901 -1,645 -0.20 45,540 -4.40 6.3989
2014-10-06 2014-09-30 13F MERCK AND COM 58933Y105 803,546 -34,797 -4.15 47,634 -1.78 6.2223
2014-07-17 2014-06-30 13F MERCK AND COM 58933Y105 838,343 -5,040 -0.60 48,498 1.29 5.9182
2014-04-10 2014-03-31 13F MERCK AND COM 58933Y105 843,383 -30,573 -3.50 47,879 9.46 6.1140
2014-01-21 2013-12-31 13F MERCK AND COM 58933Y105 873,956 -3,293 -0.38 43,741 4.73 5.5031
2013-10-30 2013-09-30 13F MERCK AND COM 58933Y105 877,249 -1,520 -0.17 41,765 2.32 5.3626
2013-08-07 2013-06-30 13F MERCK & CO. INC COM 58933Y105 878,769 878,769 40,819 5.3259
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.