Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionTocqueville Asset Management L.p.
Latest Disclosed Ownership446,512 shares
Latest Disclosed Value $ 53,710,980
Tocqueville Asset Management L.p. reports 9.28% decrease in ownership of 6MK / Merck & Co., Inc.

On May 12, 2026 - Tocqueville Asset Management L.p. filed a 13F-HR form disclosing ownership of 446,512 shares of Merck & Co., Inc. (BG:6MK) valued at $53,710,980 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 492,211 shares of Merck & Co., Inc.. This represents a change in shares of -9.28% 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 MERCK COM 58933Y105 446,512 -45,699 -9.28 53,711 3.67 0.7965
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 492,211 -54,989 -10.05 51,810 12.81 0.7557
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 547,200 -123,158 -18.37 45,927 -13.45 0.6677
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 670,358 -24,667 -3.55 53,066 -14.94 0.8078
2025-05-13 2025-03-31 13F MERCK COM 58933Y105 695,025 -65,585 -8.62 62,385 -17.55 1.0187
2025-02-10 2024-12-31 13F MERCK COM 58933Y105 760,610 -29,037 -3.68 75,666 -15.62 1.1867
2024-11-08 2024-09-30 13F MERCK COM 58933Y105 789,647 52,266 7.09 89,672 -1.77 1.4086
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 737,381 -51,455 -6.52 91,288 -12.30 1.5069
2024-05-09 2024-03-31 13F MERCK COM 58933Y105 788,836 -2,801 -0.35 104,087 20.60 1.7004
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 791,637 3,198 0.41 86,304 6.33 1.5644
2023-11-09 2023-09-30 13F MERCK COM 58933Y105 788,439 -19,044 -2.36 81,170 -12.89 1.5416
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 807,483 -71 -0.01 93,175 8.45 1.6684
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 807,554 -59,808 -6.90 85,916 -10.72 1.6231
2023-02-09 2022-12-31 13F MERCK COM 58933Y105 867,362 -8,112 -0.93 96,234 27.64 1.8278
2022-11-10 2022-09-30 13F MERCK COM 58933Y105 875,474 -1,269 -0.14 75,396 -5.68 1.5368
2022-08-12 2022-06-30 13F MERCK COM 58933Y105 876,743 -15,210 -1.71 79,933 9.22 1.4617
2022-05-16 2022-03-31 13F Merck COM 58933Y105 891,953 -10,653 -1.18 73,185 5.80 1.1056
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 902,606 -22,635 -2.45 69,176 -0.46 0.9515
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 925,241 -11,152 -1.19 69,495 -4.57 1.0295
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 936,393 -39,147 -4.01 72,823 -3.17 1.0521
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 975,540 55,581 6.04 75,204 -0.07 1.1572
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 919,959 53,545 6.18 75,253 4.71 1.2562
2020-11-16 2020-09-30 13F MERCK COM 58933Y105 866,414 -14,891 -1.69 71,869 5.46 1.3749
2020-08-12 2020-06-30 13F MERCK & CO. COM 58933Y105 881,305 110,954 14.40 68,151 14.98 1.4212
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 770,351 -19,945 -2.52 59,271 -17.54 1.4726
2020-01-14 2019-12-31 13F Merck COM 58933Y105 790,296 -216,301 -21.49 71,877 -15.17 1.0571
2019-10-31 2019-09-30 13F Merck COM 58933Y105 1,006,597 -16,996 -1.66 84,735 -1.27 1.1498
2019-07-31 2019-06-30 13F Merck COM 58933Y105 1,023,593 -1,975 -0.19 85,828 0.62 1.1122
2019-04-30 2019-03-31 13F Merck COM 58933Y105 1,025,568 -104,335 -9.23 85,297 -1.20 1.1386
2019-02-08 2018-12-31 13F Merck COM 58933Y105 1,129,903 -202,271 -15.18 86,336 -8.64 1.2938
2018-11-13 2018-09-30 13F Merck COM 58933Y105 1,332,174 -35,972 -2.63 94,504 13.80 1.1907
2018-08-13 2018-06-30 13F Merck COM 58933Y105 1,368,146 -31,505 -2.25 83,046 8.93 1.0535
2018-05-14 2018-03-31 13F Merck COM 58933Y105 1,399,651 25,404 1.85 76,239 -1.41 0.9713
2018-02-13 2017-12-31 13F Merck COM 58933Y105 1,374,247 340,151 32.89 77,329 16.79 0.8780
2017-10-30 2017-09-30 13F Merck COM 58933Y105 1,034,096 4,840 0.47 66,213 0.38 0.7615
2017-08-04 2017-06-30 13F Merck COM 58933Y105 1,029,256 12,471 1.23 65,965 2.10 0.7914
2017-04-28 2017-03-31 13F Merck COM 58933Y105 1,016,785 -25,182 -2.42 64,607 5.32 0.7883
2017-01-30 2016-12-31 13F Merck COM 58933Y105 1,041,967 53,843 5.45 61,341 -0.53 0.7843
2016-10-31 2016-09-30 13F Merck COM 58933Y105 988,124 -164,101 -14.24 61,669 -7.10 0.7404
2016-08-15 2016-06-30 13F/A-1 Merck COM 58933Y105 1,152,225 1,972 0.17 66,380 9.07 0.7909
2016-07-29 2016-06-30 13F Merck COM 58933Y105 1,149,225 66,207
2016-04-29 2016-03-31 13F Merck COM 58933Y105 1,150,253 -322,385 -21.89 60,860 -21.76 0.8061
2016-01-29 2015-12-31 13F Merck COM 58933Y105 1,472,638 10,481 0.72 77,785 7.71 1.0545
2015-10-30 2015-09-30 13F Merck COM 58933Y105 1,462,157 11,207 0.77 72,216 -12.57 0.9661
2015-07-31 2015-06-30 13F Merck COM 58933Y105 1,450,950 -19,286 -1.31 82,603 -2.26 0.9729
2015-04-30 2015-03-31 13F Merck COM 58933Y105 1,470,236 1,470,236 0.00 84,509 0.9933
2015-01-30 2014-12-31 13F Merck COM 58933Y105 0 -1,489,208 -100.00 0 -100.00
2014-10-30 2014-09-30 13F Merck COM 58933Y105 1,489,208 66 0.00 88,280 2.48 0.9798
2014-09-18 2014-06-30 13F/A-1 Merck COM 58933Y105 1,489,142 -436 -0.03 86,147 1.87 0.8384
2014-07-30 2014-06-30 13F Merck COM 58933Y105 1,489,142 86,147
2014-04-30 2014-03-31 13F Merck COM 58933Y105 1,489,578 -34,042 -2.23 84,563 10.89 1.1130
2014-01-30 2013-12-31 13F Merck COM 58933Y105 1,523,620 208,267 15.83 76,257 21.77 1.0251
2013-10-30 2013-09-30 13F Merck COM 58933Y105 1,315,353 16,265 1.25 62,623 3.78 0.7807
2013-07-30 2013-06-30 13F Merck COM 58933Y105 1,299,088 1,299,088 60,343 0.8169
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.