Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionVoya Financial Advisors, Inc.
Latest Disclosed Ownership3,276 shares
Latest Disclosed Value $ 391,908
Voya Financial Advisors, Inc. reports 6.77% decrease in ownership of MRK / Merck & Co., Inc.

On May 12, 2026 - Voya Financial Advisors, Inc. filed a 13F-HR form disclosing ownership of 3,276 shares of Merck & Co., Inc. (MX:MRK) valued at $391,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,514 shares of Merck & Co., Inc.. This represents a change in shares of -6.77% 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)
2026-05-12 2026-03-31 13F MERCK COM 58933Y105 3,276 -238 -6.77 392 4.55 0.0391
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 3,514 -105 -2.90 375 31.69 0.0360
2025-10-09 2025-09-30 13F MERCK COM 58933Y105 3,619 -464 -11.36 284 -11.80 0.0274
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 4,083 -2,346 -36.49 323 -43.80 0.0326
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 6,429 -921 -12.53 574 -20.75 0.0633
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 7,350 -10 -0.14 723 -13.52 0.0787
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 7,360 451 6.53 837 -6.70 0.0903
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 6,909 -294 -4.08 897 -5.58 0.1014
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 7,203 -544 -7.02 949 12.71 0.1084
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 7,747 865 12.57 843 17.43 0.1014
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 6,882 1,413 25.84 718 15.65 0.0894
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 5,469 -193 -3.41 621 3.51 0.0723
2023-05-15 2023-03-31 13F MERCK COM 58933Y105 5,662 -830 -12.78 600 -16.69 0.0747
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 6,492 -1,139 -14.93 719 8.77 0.0935
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 7,631 139 1.86 661 -4.62 0.0854
2022-08-15 2022-06-30 13F MERCK COM 58933Y105 7,492 139 1.89 693 14.36 0.0863
2022-05-16 2022-03-31 13F MERCK & CO. COM 58933Y105 7,353 217 3.04 606 10.18 0.0693
2022-02-14 2021-12-31 13F MERCK COM 58933Y105 7,136 -1,640 -18.69 550 -16.54 0.0621
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 8,776 -176 -1.97 659 -4.63 0.0806
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 8,952 -53,884 -85.75 691 -85.71 0.0902
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 62,836 2,046 3.37 4,836 -1.29 0.1907
2021-03-05 2020-12-31 13F MERCK & CO. COM 58933Y105 60,790 2,748 4.73 4,899 3.05 0.2111
2020-11-16 2020-09-30 13F MERCK & CO. COM 58933Y105 58,042 -3,420 -5.56 4,754 1.62 0.2359
2020-08-14 2020-06-30 13F MERCK & CO. COM 58933Y105 61,462 1,512 2.52 4,678 1.41 0.2457
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 59,950 5,284 9.67 4,613 -7.30 0.2554
2020-02-14 2019-12-31 13F MERCK COM 58933Y105 54,666 3,232 6.28 4,976 16.70 0.2449
2019-11-26 2019-09-30 13F/A-1 MERCK COM 58933Y105 51,434 2,757 5.66 4,264 4.51 0.2298
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 51,434 2,757 4,264 230,126.4940
2019-08-14 2019-06-30 13F MERCK COM 58933Y105 48,677 1,557 3.30 4,080 4.80 0.2182
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 47,120 491 1.05 3,893 10.79 0.2260
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 46,629 3,578 8.31 3,514 15.40 0.2343
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 43,051 1,372 3.29 3,045 21.17 0.1778
2018-08-14 2018-06-30 13F MERCK COM 58933Y105 41,679 -5,981 -12.55 2,513 -4.30 0.1633
2018-05-15 2018-03-31 13F MERCK COM 58933Y105 47,660 891 1.91 2,626 -0.79 0.1745
2018-02-14 2017-12-31 13F MERCK COM 58933Y105 46,769 2,798 6.36 2,647 -6.37 0.1700
2017-11-14 2017-09-30 13F MERCK COM 58933Y105 43,971 3,180 7.80 2,827 7.74 0.1883
2017-08-14 2017-06-30 13F MERCK COM 58933Y105 40,791 888 2.23 2,624 3.35 0.1867
2017-05-15 2017-03-31 13F MERCK COM 58933Y105 39,903 3,472 9.53 2,539 18.04 0.1975
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 36,431 4,831 15.29 2,151 9.97 0.1876
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 31,600 5,538 21.25 1,956 31.54 0.1997
2016-08-15 2016-06-30 13F MERCK COM 58933Y105 26,062 -457 -1.72 1,487 5.39 0.1739
2016-05-16 2016-03-31 13F MERCK & CO INC COM 58933Y105 26,519 6,194 30.47 1,411 30.41 0.1966
2016-02-12 2015-12-31 13F MERCK & CO INC COM 58933Y105 20,325 3,212 18.77 1,082 30.05 0.1601
2015-11-16 2015-09-30 13F MERCK & CO INC COM 58933Y105 17,113 458 2.75 832 -12.79 0.1741
2015-08-14 2015-06-30 13F MERCK & CO INC COM 58933Y105 16,655 1,360 8.89 954 6.95 0.1688
2015-05-15 2015-03-31 13F MERCK & CO INC COM 58933Y105 15,295 15,295 892 0.1740
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.