Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionFDx Advisors, Inc.
Latest Disclosed Ownership2,690 shares
Latest Disclosed Value $ 324
FDx Advisors, Inc. ownership in 6MK / Merck & Co., Inc.

On May 1, 2026 - FDx Advisors, Inc. filed a 13F-HR form disclosing ownership of 2,690 shares of Merck & Co., Inc. (DE:6MK) valued at $280,298 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2025 disclosing 0 shares of Merck & Co., Inc.. The current value of the position is $276,478 USD.

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)
2026-05-01 2026-03-31 13F MERCK CO INC COM Common Stock 58933Y105 2,690 2,690 0 0.1034
2025-02-03 2024-12-31 13F MERCK CO INC COM Common Stock 58933Y105 0 -2,896 -100.00 0 0.0000
2024-11-04 2024-09-30 13F MERCK CO INC COM Common Stock 58933Y105 2,896 -2 -0.07 0 0.0897
2024-08-02 2024-06-30 13F MERCK CO INC COM Common Stock 58933Y105 2,898 -35,526 -92.46 0 -100.00 0.0992
2024-05-03 2024-03-31 13F MERCK CO INC COM Common Stock 58933Y105 38,424 -21,676 -36.07 5 -16.67 0.7695
2024-02-13 2023-12-31 13F MERCK CO INC COM Common Stock 58933Y105 60,100 -15,555 -20.56 7 -14.29 0.5066
2023-11-02 2023-09-30 13F MERCK CO INC COM Common Stock 58933Y105 75,655 -83,972 -52.61 8 -61.11 0.6464
2023-07-17 2023-06-30 13F MERCK CO INC COM Common Stock 58933Y105 159,627 -32,982 -17.12 18 -14.29 1.0103
2023-05-22 2023-03-31 13F MERCK CO INC COM Common Stock 58933Y105 192,609 0 0.00 21 0.00 0.9293
2023-02-10 2022-12-31 13F MERCK CO INC COM Common Stock 58933Y105 192,609 -6,138 -3.09 21 -99.88 0.9293
2022-11-10 2022-09-30 13F MERCK CO INC COM Common Stock 58933Y105 198,747 -39 -0.02 17,116 -5.56 0.7674
2022-08-03 2022-06-30 13F MERCK CO INC COM Common Stock 58933Y105 198,786 3,068 1.57 18,123 12.85 0.6804
2022-05-03 2022-03-31 13F MERCK CO INC COM Common Stock 58933Y105 195,718 -46,180 -19.09 16,059 -13.38 0.5441
2022-02-01 2021-12-31 13F MERCK CO INC COM Common Stock 58933Y105 241,898 13,277 5.81 18,539 7.96 0.5127
2021-10-08 2021-09-30 13F MERCK CO INC COM 58933Y105 228,621 13,228 6.14 17,172 2.51 0.5472
2021-08-05 2021-06-30 13F MERCK CO INC COM Common Stock 58933Y105 215,393 39,024 22.13 16,751 23.21 0.5564
2021-04-14 2021-03-31 13F/A-1 MERCK CO INC COM Common Stock 58933Y105 176,369 8,757 5.22 13,596 -0.84 0.5129
2021-04-13 2021-03-31 13F MERCK CO INC COM Common Stock 58933Y105 13,596 -154,016 176,369 752,044.8427
2021-02-08 2020-12-31 13F MERCK CO INC COM Common Stock 58933Y105 167,612 19,835 13.42 13,711 11.85 0.5653
2020-11-12 2020-09-30 13F MERCURY GENL CORP NEW COM Common Stock 58933Y105 147,777 25,802 21.15 12,258 29.96 0.5739
2020-07-22 2020-06-30 13F MERCK CO INC COM Common Stock 58933Y105 121,975 35,812 41.56 9,432 42.28 0.4941
2020-05-22 2020-03-31 13F/A-1 MERCK CO INC COM Common Stock 58933Y105 86,163 36,112 72.15 6,629 45.63 0.4311
2020-02-12 2019-12-31 13F MERCK CO INC COM Common Stock 58933Y105 50,051 552 1.12 4,552 9.24 0.2514
2019-11-07 2019-09-30 13F MERCK CO INC COM Common Stock 58933Y105 49,499 -14,245 -22.35 4,167 -22.04 0.2884
2019-07-19 2019-06-30 13F MERCK & CO INC COM Common Stock 58933Y105 63,744 7,557 13.45 5,345 14.38 0.2095
2019-05-14 2019-03-31 13F MERCK CO INC COM Common Stock 58933Y105 56,187 20,707 58.36 4,673 72.37 0.1895
2019-04-29 2018-12-31 13F/A-1 MERCK CO INC COM Common Stock 58933Y105 35,480 -27,645 -43.79 2,711 -39.46 0.2228
2019-02-07 2018-12-31 13F MERCK CO INC COM Common Stock 58933Y105 129,198 66,073 9,872 222,546.9452
2018-11-13 2018-09-30 13F MERCK CO INC COM Common Stock 58933Y105 63,125 -14,186 -18.35 4,478 -4.58 0.1663
2018-08-08 2018-06-30 13F MERCK CO INC COM Common Stock 58933Y105 77,311 -93,654 -54.78 4,693 -49.60 0.1696
2018-05-02 2018-03-31 13F MERCK CO INC COM Common Stock 58933Y105 170,965 -26,574 -13.45 9,312 -16.23 0.2778
2018-02-09 2017-12-31 13F MERCK CO INC COM Common Stock 58933Y105 197,539 -4,489 -2.22 11,116 -14.07 0.3022
2017-11-03 2017-09-30 13F MERCK & CO INC COM Common Stock 58933Y105 202,028 7,287 3.74 12,936 3.65 0.3550
2017-08-11 2017-06-30 13F MERCK CO INC COM Common Stock 58933Y105 194,741 -275 -0.14 12,481 0.73 0.3697
2017-05-15 2017-03-31 13F MERCK & CO INC COM Common Stock 58933Y105 195,016 -7,623 -3.76 12,391 3.87 0.3789
2017-02-14 2016-12-31 13F MERCK & CO INC COM Common Stock 58933Y105 202,639 41,164 25.49 11,929 18.37 0.3430
2016-11-14 2016-09-30 13F MERCK & CO INC COM Common Stock 58933Y105 161,475 3,878 2.46 10,078 11.00 0.4190
2016-08-15 2016-06-30 13F MERCK & CO INC COM Common Stock 58933Y105 157,597 18,413 13.23 9,079 23.29 0.4104
2016-05-17 2016-03-31 13F MERCK & CO INC NEW COM Common Stock 58933Y105 139,184 52,265 60.13 7,364 60.40 0.3362
2016-02-17 2015-12-31 13F MERCK Common Stock 58933Y105 86,919 31,973 58.19 4,591 69.22 0.2084
2015-11-16 2015-09-30 13F MERCK Common Stock 58933Y105 54,946 -9,738 -15.05 2,714 -26.60 0.2331
2015-08-14 2015-06-30 13F MERCK Common Stock 58933Y105 64,684 1,984 3.16 3,696 2.61 0.1834
2015-05-18 2015-03-31 13F/A-1 MERCK Common Stock 58933Y105 62,700 10,820 20.86 3,602 22.27 0.0795
2015-05-15 2015-03-31 13F MERCK Common Stock 58933Y105 36,017 627
2015-02-17 2014-12-31 13F MERCK Common Stock 58933Y105 51,880 13,593 35.50 2,946 29.78 0.1794
2014-11-17 2014-09-30 13F MERCK Common Stock 58933Y105 38,287 -876 -2.24 2,270 0.18 0.1472
2014-08-15 2014-06-30 13F MERCK Common Stock 58933Y105 39,163 15,520 65.64 2,266 68.85 0.1484
2014-05-15 2014-03-31 13F MERCK Common Stock 58933Y105 23,643 7,056 42.54 1,342 60.91 0.1120
2014-02-14 2013-12-31 13F MERCK Common Stock 58933Y105 16,587 -2,763 -14.28 834 -9.45 0.0831
2013-11-13 2013-09-30 13F MERCK Common 58933Y105 19,350 1,679 9.50 921 12.18 0.1087
2013-08-13 2013-06-30 13F MRK Common 58933Y105 17,671 17,671 821 0.1082
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.