Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership57,399 shares
Latest Disclosed Value $ 6,904,536
Signaturefd, Llc reports 11.65% increase in ownership of MRK / Merck & Co., Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 57,399 shares of Merck & Co., Inc. (MX:MRK) valued at $6,904,536 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 51,409 shares of Merck & Co., Inc.. This represents a change in shares of 11.65% 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)
2026-04-07 2026-03-31 13F MERCK COM 58933Y105 57,399 5,990 11.65 6,905 27.59 0.1058
2026-01-20 2025-12-31 13F MERCK COM 58933Y105 51,409 4,644 9.93 5,411 37.90 0.0826
2025-10-21 2025-09-30 13F MERCK COM 58933Y105 46,765 880 1.92 3,925 8.04 0.0619
2025-07-16 2025-06-30 13F MERCK COM 58933Y105 45,885 -5,064 -9.94 3,632 -20.58 0.0619
2025-05-02 2025-03-31 13F MERCK COM 58933Y105 50,949 -2,398 -4.50 4,573 -13.83 0.0866
2025-02-10 2024-12-31 13F MERCK COM 58933Y105 53,347 -2,013 -3.64 5,307 -15.57 0.1005
2024-10-21 2024-09-30 13F MERCK COM 58933Y105 55,360 -3,782 -6.39 6,287 -14.14 0.1197
2024-07-29 2024-06-30 13F MERCK COM 58933Y105 59,142 3,826 6.92 7,322 0.32 0.1487
2024-05-03 2024-03-31 13F MERCK COM 58933Y105 55,316 2,478 4.69 7,299 26.70 0.1542
2024-02-01 2023-12-31 13F MERCK COM 58933Y105 52,838 3,891 7.95 5,760 14.31 0.1330
2023-11-03 2023-09-30 13F MERCK COM 58933Y105 48,947 45 0.09 5,039 -10.69 0.1312
2023-08-01 2023-06-30 13F MERCK COM 58933Y105 48,902 272 0.56 5,643 9.07 0.1441
2023-04-28 2023-03-31 13F MERCK COM 58933Y105 48,630 2,527 5.48 5,174 1.13 0.1413
2023-01-30 2022-12-31 13F MERCK COM 58933Y105 46,103 3,186 7.42 5,115 38.39 0.1495
2022-11-08 2022-09-30 13F MERCK COM 58933Y105 42,917 1,758 4.27 3,696 -1.49 0.1265
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 41,159 3,473 9.22 3,752 21.35 0.1277
2022-05-02 2022-03-31 13F MERCK COM 58933Y105 37,686 5,093 15.63 3,092 23.78 0.0931
2022-01-25 2021-12-31 13F MERCK COM 58933Y105 32,593 -11 -0.03 2,498 2.00 0.0768
2021-10-28 2021-09-30 13F MERCK COM 58933Y105 32,604 3,068 10.39 2,449 6.62 0.0846
2021-07-26 2021-06-30 13F MERCK COM 58933Y105 29,536 -259 -0.87 2,297 0.00 0.0916
2021-04-30 2021-03-31 13F MERCK & CO. COM 58933Y105 29,795 -697 -2.29 2,297 -7.90 0.1016
2021-02-11 2020-12-31 13F MERCK & CO. COM 58933Y105 30,492 -5,156 -14.46 2,494 -15.66 0.1175
2020-11-03 2020-09-30 13F MERCK & CO. COM 58933Y105 35,648 8,414 30.90 2,957 40.41 0.1583
2020-07-30 2020-06-30 13F MERCK & CO. COM 58933Y105 27,234 -537 -1.93 2,106 -1.45 0.1272
2020-04-23 2020-03-31 13F MERCK & CO. COM 58933Y105 27,771 2,015 7.82 2,137 -8.75 0.1847
2020-02-05 2019-12-31 13F MERCK COM 58933Y105 25,756 1,622 6.72 2,342 15.26 0.1730
2019-10-16 2019-09-30 13F MERCK COM 58933Y105 24,134 2,660 12.39 2,032 12.83 0.1669
2019-07-31 2019-06-30 13F MERCK COM 58933Y105 21,474 1,054 5.16 1,801 6.07 0.1558
2019-05-09 2019-03-31 13F MERCK COM 58933Y105 20,420 -3,173 -13.45 1,698 -5.82 0.1445
2019-02-13 2018-12-31 13F MERCK COM 58933Y105 23,593 1,973 9.13 1,803 17.54 0.1680
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 21,620 1,165 5.70 1,534 23.51 0.1559
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 20,455 3,810 22.89 1,242 36.93 0.1386
2018-05-08 2018-03-31 13F MERCK COM 58933Y105 16,645 -1,540 -8.47 907 -11.34 0.1064
2018-02-13 2017-12-31 13F MERCK COM 58933Y105 18,185 1,412 8.42 1,023 -4.75 0.1233
2017-11-14 2017-09-30 13F MERCK COM 58933Y105 16,773 150 0.90 1,074 0.85 0.1425
2017-08-14 2017-06-30 13F MERCK COM 58933Y105 16,623 988 6.32 1,065 7.25 0.1548
2017-05-15 2017-03-31 13F MERCK COM 58933Y105 15,635 535 3.54 993 11.70 0.1471
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 15,100 -1,613 -9.65 889 -14.77 0.1494
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 16,713 2,995 21.83 1,043 32.03 0.1523
2016-07-29 2016-06-30 13F MERCK COM 58933Y105 13,718 2,902 26.83 790 38.11 0.1154
2016-05-12 2016-03-31 13F MERCK & CO INC COM 58933Y105 10,816 1,932 21.75 572 21.96 0.0975
2016-01-22 2015-12-31 13F MERCK & CO INC COM 58933Y105 8,884 370 4.35 469 11.67 0.0908
2015-10-23 2015-09-30 13F MERCK & CO INC COM 58933Y105 8,514 2,098 32.70 420 15.07 0.0958
2015-07-15 2015-06-30 13F MERCK & CO INC COM 58933Y105 6,416 202 3.25 365 2.24 0.0791
2015-04-15 2015-03-31 13F MERCK & CO INC COM 58933Y105 6,214 246 4.12 357 5.31 0.0866
2015-02-13 2014-12-31 13F MERCK & CO INC COM 58933Y105 5,968 270 4.74 339 0.30 0.0843
2014-11-13 2014-09-30 13F MERCK & CO INC COM 58933Y105 5,698 -670 -10.52 338 -8.15 0.1101
2014-08-14 2014-06-30 13F MERCK & CO INC COM 58933Y105 6,368 4,256 201.52 368 206.67 0.1281
2014-05-16 2014-03-31 13F MERCK & CO INC COM 58933Y105 2,112 137 6.94 120 21.21 0.0483
2014-02-11 2013-12-31 13F MERCK & CO INC COM 58933Y105 1,975 1,064 116.79 99 130.23 0.0361
2013-11-13 2013-09-30 13F MERCK & CO INC COM 58933Y105 911 -112 -10.95 43 -10.42 0.0184
2013-08-14 2013-06-30 13F MERCK & CO INC COM 58933Y105 1,023 1,023 48 0.0248
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.