Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionJanney Capital Management LLC
Latest Disclosed Ownership13,569 shares
Latest Disclosed Value $ 1,428
Janney Capital Management LLC ownership in MRK / Merck & Co., Inc.

On February 11, 2026 - Janney Capital Management LLC filed a 13F-HR form disclosing ownership of 13,569 shares of Merck & Co., Inc. (MX:MRK) valued at $1,428 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 27, 2025 disclosing 13,569 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% 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)
2026-02-11 2025-12-31 13F MERCK Common Stock 58933Y105 13,569 0 0.00 1 0.00 0.0897
2025-10-27 2025-09-30 13F MERCK Common Stock 58933Y105 13,569 -512 -3.64 1 0.00 0.0709
2025-07-17 2025-06-30 13F MERCK Common Stock 58933Y105 14,081 303 2.20 1 0.00 0.0719
2025-04-21 2025-03-31 13F MERCK Common Stock 58933Y105 13,778 -360 -2.55 1 0.00 0.0851
2025-01-17 2024-12-31 13F MERCK Common Stock 58933Y105 14,138 -26 -0.18 1 0.00 0.0930
2024-10-29 2024-09-30 13F MERCK Common Stock 58933Y105 14,164 0 0.00 2 0.00 0.1085
2024-07-25 2024-06-30 13F MERCK Common Stock 58933Y105 14,164 0 0.00 2 0.00 0.1238
2024-05-01 2024-03-31 13F MERCK Common Stock 58933Y105 14,164 -217 -1.51 2 0.00 0.1243
2024-02-08 2023-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 14,381 -132 -0.91 2 0.00 0.1052
2023-11-08 2023-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 14,513 1 0.01 1 0.00 0.1150
2023-07-26 2023-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 14,512 -103 -0.70 2 0.00 0.1160
2023-04-28 2023-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 14,615 -336 -2.25 2 0.00 0.1170
2023-02-01 2022-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 14,951 712 5.00 2 -99.92 0.1185
2022-10-25 2022-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 14,239 109 0.77 1,226 -4.81 0.0999
2022-08-03 2022-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 14,130 -502 -3.43 1,288 7.24 0.1034
2022-05-04 2022-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 14,632 -13,380 -47.77 1,201 -44.06 0.0854
2022-01-27 2021-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 28,012 206 0.74 2,147 2.78 0.1398
2021-11-01 2021-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 27,806 -817 -2.85 2,089 -6.15 0.1402
2021-07-26 2021-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 28,623 236 0.83 2,226 1.74 0.1421
2021-04-27 2021-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 28,387 -121 -0.42 2,188 -6.17 0.1450
2021-01-25 2020-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 28,508 130 0.46 2,332 -0.93 0.1614
2020-11-06 2020-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 28,378 2,904 11.40 2,354 19.49 0.1606
2020-07-23 2020-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 25,474 2,304 9.94 1,970 10.49 0.1359
2020-04-30 2020-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 23,170 1,919 9.03 1,783 -7.76 0.1364
2020-01-21 2019-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 21,251 742 3.62 1,933 11.99 0.1044
2019-10-28 2019-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 20,509 3,448 20.21 1,726 20.61 0.0963
2019-07-29 2019-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 17,061 697 4.26 1,431 5.14 0.0777
2019-04-30 2019-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 16,364 -303 -1.82 1,361 6.83 0.0710
2019-02-01 2018-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 16,667 750 4.71 1,274 12.84 0.0687
2019-01-04 2018-09-30 13F/A-1 MERCK COMPANY INC Common Stock 58933Y105 15,917 -539 -3.28 1,129 13.01 0.0490
2018-11-14 2018-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 1,013,096 996,640 71,869
2018-07-24 2018-06-30 13F MERCK COMPANY INC Common Stock 58933Y105 16,456 5,091 44.80 999 61.39 0.0440
2018-04-19 2018-03-31 13F MERCK COMPANY INC Common Stock 58933Y105 11,365 -1,389 -10.89 619 -13.67 0.0270
2018-02-14 2017-12-31 13F MERCK COMPANY INC Common Stock 58933Y105 12,754 -1,415 -9.99 717 -20.95 0.0306
2017-11-15 2017-09-30 13F MERCK COMPANY INC Common Stock 58933Y105 14,169 -936 -6.20 907 -6.30 0.0391
2017-07-27 2017-06-30 13F Merck Co Inc Common Stocks 58933Y105 15,105 -73 -0.48 968 0.41 0.0457
2017-04-26 2017-03-31 13F Merck Co Inc Common Stocks 58933Y105 15,178 -1,175 -7.19 964 0.21 0.0445
2017-02-13 2016-12-31 13F Merck & Co Inc Common Stocks 58933Y105 16,353 -1,060 -6.09 962 -11.42 0.0442
2016-11-14 2016-09-30 13F Merck & Co Inc Common Stocks 58933Y105 17,413 726 4.35 1,086 13.01 0.0490
2016-08-05 2016-06-30 13F Merck & Co Inc Common Stocks 58933Y105 16,687 500 3.09 961 12.27 0.0508
2016-05-11 2016-03-31 13F/A-1 Merck & Co Inc Common Stocks 58933Y105 16,187 -1,755 -9.78 856 -9.70 0.0461
2016-05-10 2016-03-31 13F Merck & Co Inc Common Stocks 58933Y105 16,187 1
2016-02-19 2015-12-31 13F/A-1 Merck & Co Inc Common Stocks 58933Y105 17,942 -1,759 -8.93 948 -2.57 0.0417
2016-02-18 2015-12-31 13F Merck & Co Inc Common Stocks 58933Y105 17,942 948
2015-11-16 2015-09-30 13F Merck & Co Inc Common Stocks 58933Y105 19,701 -1,918 -8.87 973 -20.96 0.0442
2015-08-13 2015-06-30 13F/A-3 Merck & Co Inc Common Stocks 58933Y105 21,619 3,449 18.98 1,231 17.91 0.0757
2015-08-13 2015-06-30 13F/A-2 MERCK + COMPANY INC Common Stock 58933Y105 21,619 0 182,599 0.0208
2015-08-13 2015-06-30 13F/A-1 Merck & Co Inc Common Stocks 58933Y105 21,619 0 183 0.0209
2015-05-11 2015-03-31 13F/A-1 Merck & Co Inc Common Stock 58933Y105 18,170 -2,109 1,044,000 0.0349
2015-05-12 2015-03-31 13F/A-2 Merck & Co Inc Common Stock 58933Y105 18,170 -2,109 -10.40 1,044 -9.37 0.0349
2015-05-05 2015-03-31 13F Merck & Co Inc Common Stock 58933Y105 18,170 1,044,000
2015-02-09 2014-12-31 13F Merck & Co Inc COM 58933Y105 20,279 278 1.39 1,152 -2.87 0.0663
2014-11-12 2014-09-30 13F Merck & Co Inc COM 58933Y105 20,001 -953 -4.55 1,186 -2.15 0.0716
2014-07-18 2014-06-30 13F Merck & Co Inc COM 58933Y105 20,954 5,793 38.21 1,212 40.77 0.0733
2014-05-13 2014-03-31 13F Merck & Co Inc COM 58933Y105 15,161 1,845 13.86 861 29.28 0.0573
2014-02-14 2013-12-31 13F Merck & Co Inc COM 58933Y105 13,316 156 1.19 666 6.22 0.0493
2013-11-14 2013-09-30 13F Merck & Co Inc COM 58933Y105 13,160 697 5.59 627 8.29 0.0514
2013-08-13 2013-06-30 13F Merck & Co Inc COM 58933Y105 12,463 12,463 579 0.0569
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.