Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionMotco
Latest Disclosed Ownership48,161 shares
Latest Disclosed Value $ 5,793,286
Motco reports 0.37% increase in ownership of 6MK / Merck & Co., Inc.

On April 22, 2026 - Motco filed a 13F-HR form disclosing ownership of 48,161 shares of Merck & Co., Inc. (BG:6MK) valued at $5,793,286 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 47,983 shares of Merck & Co., Inc.. This represents a change in shares of 0.37% 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)
2026-04-22 2026-03-31 13F MERCK Com 58933Y105 48,161 178 0.37 5,793 14.71 0.2838
2026-02-06 2025-12-31 13F MERCK Com 58933Y105 47,983 -493 -1.02 5,051 24.14 0.4578
2025-10-22 2025-09-30 13F MERCK Com 58933Y105 48,476 -97,294 -66.74 4,069 -64.28 0.3716
2025-08-01 2025-06-30 13F MERCK Com 58933Y105 145,770 7,193 5.19 11,388 -8.45 1.0898
2025-05-07 2025-03-31 13F MERCK Com 58933Y105 138,577 3,338 2.47 12,439 -7.54 1.3137
2025-02-05 2024-12-31 13F MERCK Com 58933Y105 135,239 3,527 2.68 13,454 -10.06 1.3800
2024-11-05 2024-09-30 13F MERCK Com 58933Y105 131,712 -8,880 -6.32 14,957 -14.06 1.4950
2024-08-07 2024-06-30 13F MERCK Com 58933Y105 140,592 47 0.03 17,405 -6.14 1.0274
2024-05-09 2024-03-31 13F MERCK Com 58933Y105 140,545 -1,271 -0.90 18,545 19.95 1.1089
2024-02-09 2023-12-31 13F MERCK Com 58933Y105 141,816 -7,250 -4.86 15,461 0.74 0.9911
2023-11-07 2023-09-30 13F MERCK Com 58933Y105 149,066 -8,850 -5.60 15,346 -15.78 1.0495
2023-08-04 2023-06-30 13F MERCK Com 58933Y105 157,916 -10,129 -6.03 18,222 1.92 1.1930
2023-05-09 2023-03-31 13F MERCK Com 58933Y105 168,045 -5,174 -2.99 17,878 -6.97 1.2130
2023-02-10 2022-12-31 13F MERCK Com 58933Y105 173,219 -7,805 -4.31 19,219 23.28 1.4280
2022-11-03 2022-09-30 13F MERCK Com 58933Y105 181,024 1,434 0.80 15,589 -4.79 1.2341
2022-08-05 2022-06-30 13F MERCK Com 58933Y105 179,590 -13,551 -7.02 16,373 3.32 1.2308
2022-05-06 2022-03-31 13F MERCK Com 58933Y105 193,141 4,057 2.15 15,847 9.36 0.6558
2022-05-06 2022-03-31 13F MERCK Com 58933Y105 188,327 15,452
2022-02-08 2021-12-31 13F MERCK Com 58933Y105 189,084 940 0.50 14,491 2.54 0.8954
2021-10-29 2021-09-30 13F MERCK Com 58933Y105 188,144 10,795 6.09 14,132 2.47 0.9216
2021-08-04 2021-06-30 13F MERCK Com 58933Y105 177,349 14,294 8.77 13,792 9.72 0.9041
2021-04-16 2021-03-31 13F MERCK Com 58933Y105 163,055 14,347 9.65 12,570 3.34 0.8876
2021-02-05 2020-12-31 13F MERCK Com 58933Y105 148,708 8,247 5.87 12,164 4.40 0.8949
2020-11-10 2020-09-30 13F MERCK Com 58933Y105 140,461 1,321 0.95 11,651 8.29 0.9323
2020-07-15 2020-06-30 13F MERCK Com 58933Y105 139,140 2,048 1.49 10,759 2.00 0.9257
2020-05-06 2020-03-31 13F MERCK Com 58933Y105 137,092 3,262 2.44 10,548 -13.34 1.0560
2020-02-06 2019-12-31 13F MERCK Com 58933Y105 133,830 1,866 1.41 12,172 9.58 1.0237
2019-11-05 2019-09-30 13F MERCK Com 58933Y105 131,964 65,690 99.12 11,108 99.86 0.9978
2019-08-07 2019-06-30 13F MERCK Com 58933Y105 66,274 756 1.15 5,558 2.00 0.5198
2019-05-02 2019-03-31 13F MERCK Com 58933Y105 65,518 -5,616 -7.89 5,449 0.26 0.5442
2019-02-08 2018-12-31 13F MERCK Com 58933Y105 71,134 -1,346 -1.86 5,435 5.70 0.6015
2018-11-07 2018-09-30 13F MERCK Com 58933Y105 72,480 8,454 13.20 5,142 32.32 0.5113
2018-08-08 2018-06-30 13F MERCK Com 58933Y105 64,026 1,642 2.63 3,886 14.36 0.3999
2018-05-08 2018-03-31 13F MERCK Com 58933Y105 62,384 5,126 8.95 3,398 5.46 0.3482
2018-02-06 2017-12-31 13F MERCK Com 58933Y105 57,258 2,320 4.22 3,222 -8.41 0.3251
2017-11-07 2017-09-30 13F MERCK Com 58933Y105 54,938 -19,813 -26.51 3,518 -26.57 0.3604
2017-08-08 2017-06-30 13F MERCK Com 58933Y105 74,751 20,739 38.40 4,791 39.60 0.4994
2017-04-20 2017-03-31 13F MERCK Com 58933Y105 54,012 -253 -0.47 3,432 7.42 0.3729
2017-02-10 2016-12-31 13F MERCK Com 58933Y105 54,265 -1,343 -2.42 3,195 -7.93 0.3565
2016-11-08 2016-09-30 13F MERCK Com 58933Y105 55,608 -53 -0.10 3,470 8.20 0.3869
2016-08-05 2016-06-30 13F MERCK Com 58933Y105 55,661 -742 -1.32 3,207 7.44 0.3554
2016-05-03 2016-03-31 13F MERCK Com 58933Y105 56,403 1,062 1.92 2,985 2.09 0.3378
2016-02-04 2015-12-31 13F MERCK Com 58933Y105 55,341 1,037 1.91 2,924 9.02 0.3466
2015-11-04 2015-09-30 13F MERCK Com 58933Y105 54,304 2,019 3.86 2,682 -9.88 0.3245
2015-07-28 2015-06-30 13F MERCK Com 58933Y105 52,285 745 1.45 2,976 0.44 0.3399
2015-05-05 2015-03-31 13F MERCK Com 58933Y105 51,540 -1,359 -2.57 2,963 -1.36 0.3319
2015-02-05 2014-12-31 13F MERCK Com 58933Y105 52,899 -3,494 -6.20 3,004 -10.14 0.3194
2014-11-06 2014-09-30 13F MERCK Com 58933Y105 56,393 1,874 3.44 3,343 5.99 0.3529
2014-07-30 2014-06-30 13F MERCK Com 58933Y105 54,519 2,930 5.68 3,154 7.72 0.3452
2014-05-05 2014-03-31 13F MERCK Com 58933Y105 51,589 46 0.09 2,928 13.53 0.3356
2014-01-27 2013-12-31 13F MERCK Com 58933Y105 51,543 181 0.35 2,579 5.44 0.2980
2013-10-29 2013-09-30 13F MERCK Com 58933Y105 51,362 2,193 4.46 2,446 7.09 0.2988
2013-08-13 2013-06-30 13F MERCK Com 58933Y105 49,169 49,169 2,284 0.2905
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.