Merck & Co., Inc.
US ˙ NYSE ˙ US58933Y1055

SecurityMRK / Merck & Co., Inc.
InstitutionAlps Advisors Inc
Latest Disclosed Ownership427,760 shares
Latest Disclosed Value $ 51,455,250
Alps Advisors Inc reports 8.03% decrease in ownership of MRK / Merck & Co., Inc.

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 427,760 shares of Merck & Co., Inc. (US:MRK) valued at $51,455,250 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 465,114 shares of Merck & Co., Inc.. This represents a change in shares of -8.03% during the quarter. The current value of the position is $49,064,072 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)
2026-05-08 2026-03-31 13F MERCK COM 58933Y105 427,760 -37,354 -8.03 51,455 5.10 0.2421
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 465,114 251,929 118.17 48,958 173.63 0.2851
2025-11-05 2025-09-30 13F MERCK COM 58933Y105 213,185 -122,742 -36.54 17,893 -32.71 0.0996
2025-08-11 2025-06-30 13F MERCK COM 58933Y105 335,927 -1,674 -0.50 26,592 -12.25 0.1534
2025-04-30 2025-03-31 13F MERCK COM 58933Y105 337,601 2,845 0.85 30,303 -9.00 0.1757
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 334,756 -408 -0.12 33,302 -12.51 0.2102
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 335,164 226,217 207.64 38,061 182.21 0.2547
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 108,947 -654 -0.60 13,488 -6.74 0.0926
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 109,601 827 0.76 14,462 21.95 0.1024
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 108,774 -400 -0.37 11,859 5.51 0.0932
2023-11-14 2023-09-30 13F MERCK COM 58933Y105 109,174 -157,403 -59.05 11,239 -63.46 0.0933
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 266,577 -10,659 -3.84 30,760 4.29 0.2672
2023-05-10 2023-03-31 13F MERCK COM 58933Y105 277,236 -17,500 -5.94 29,495 -9.80 0.2606
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 294,736 -20,482 -6.50 32,701 20.46 0.2917
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 315,218 93,903 42.43 27,147 34.54 0.2569
2022-08-15 2022-06-30 13F/A-1 MERCK COM 58933Y105 221,315 168,865 321.95 20,177 368.91 0.1962
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 221,315 168,865 20,177 0.1962
2022-05-16 2022-03-31 13F MERCK COM 58933Y105 52,450 -120 -0.23 4,303 6.80 0.0467
2022-02-09 2021-12-31 13F MERCK COM 58933Y105 52,570 -290,481 -84.68 4,029 -84.36 0.0453
2021-11-15 2021-09-30 13F MERCK COM 58933Y105 343,051 -20,855 -5.73 25,767 -8.95 0.2483
2021-08-11 2021-06-30 13F MERCK COM 58933Y105 363,906 18,232 5.27 28,301 6.20 0.2503
2021-05-07 2021-03-31 13F MERCK & CO. COM 58933Y105 345,674 57,411 19.92 26,648 13.01 0.2603
2021-02-03 2020-12-31 13F MERCK & CO. COM 58933Y105 288,263 245,385 572.29 23,580 562.92 0.2655
2020-11-05 2020-09-30 13F/A-1 MERCK & CO. COM 58933Y105 42,878 8,982 26.50 3,557 35.71 0.0524
2020-11-04 2020-09-30 13F MERCK & CO. COM 58933Y105 42,878 8,982 3,557 45,587.2164
2020-08-05 2020-06-30 13F MERCK & CO. COM 58933Y105 33,896 13,501 66.20 2,621 67.05 0.0351
2020-05-06 2020-03-31 13F MERCK & CO. COM 58933Y105 20,395 -10,497 -33.98 1,569 -44.14 0.0243
2020-02-07 2019-12-31 13F MERCK COM 58933Y105 30,892 -1,459 -4.51 2,809 3.16 0.0219
2019-11-04 2019-09-30 13F MERCK COMMON STOCK 58933Y105 32,351 -6,119 -15.91 2,723 -15.59 0.0212
2019-08-07 2019-06-30 13F MERCK COMMON STOCK 58933Y105 38,470 5,273 15.88 3,226 16.84 0.0239
2019-05-01 2019-03-31 13F MERCK COMMON STOCK 58933Y105 33,197 634 1.95 2,761 10.97 0.0195
2019-02-04 2018-12-31 13F MERCK COMMON STOCK 58933Y105 32,563 -645,297 -95.20 2,488 -94.83 0.0193
2018-10-25 2018-09-30 13F MERCK COMMON STOCK 58933Y105 677,860 -75,296 -10.00 48,087 5.18 0.3155
2018-08-02 2018-06-30 13F/A-2 Merck COMMON STOCK 58933Y105 753,156 -129,267 -14.65 45,717 -4.89 0.2982
2018-07-31 2018-06-30 13F/A-1 Merck COMMON STOCK 58933Y105 873,059 119,903 49,127 0.3141
2018-07-25 2018-06-30 13F Merck COMMON STOCK 58933Y105 873,059 -9,364 49,127
2018-05-01 2018-03-31 13F Merck COMMON STOCK 58933Y105 882,423 9,364 1.07 48,066 -2.16 0.3825
2018-02-20 2017-12-31 13F/A-1 Merck COMMON STOCK 58933Y105 873,059 166,602 23.58 49,127 8.61 0.3401
2018-02-05 2017-12-31 13F Merck COMMON STOCK 58933Y105 873,059 166,602 49,127
2017-11-03 2017-09-30 13F Merck COMMON STOCK 58933Y105 706,457 -21,869 -3.00 45,234 -3.09 0.3206
2017-08-03 2017-06-30 13F Merck COMMON STOCK 58933Y105 728,326 4,629 0.64 46,678 1.51 0.3257
2017-05-12 2017-03-31 13F Merck COMMON STOCK 58933Y105 723,697 97,527 15.58 45,984 24.74 0.3171
2017-01-24 2016-12-31 13F Merck Common Stock 58933Y105 626,170 127,266 25.51 36,863 18.39 0.2718
2016-11-02 2016-09-30 13F Merck Common Stock 58933Y105 498,904 33,676 7.24 31,137 16.17 0.2541
2016-07-27 2016-06-30 13F Merck Common Stock 58933Y105 465,228 53,890 13.10 26,802 23.15 0.2375
2016-05-10 2016-03-31 13F Merck Common Stock 58933Y105 411,338 36,206 9.65 21,764 9.84 0.2247
2016-02-05 2015-12-31 13F Merck Common Stock 58933Y105 375,132 -9,926 -2.58 19,814 -89.58 0.1933
2015-11-13 2015-09-30 13F Merck Common Stock 58933Y105 385,058 -47,702 -11.02 190,180 671.93 0.2004
2015-08-12 2015-06-30 13F MERCK Common Stock 58933Y105 432,760 12,256 2.91 24,637 1.93 0.2102
2015-05-15 2015-03-31 13F MERCK Common Stock 58933Y105 420,504 58,949 16.30 24,171 17.72 0.1979
2015-02-13 2014-12-31 13F MERCK Common Stock 58933Y105 361,555 73,914 25.70 20,533 20.42 0.1615
2014-12-18 2014-09-30 13F/A-1 MERCK Common Stock 58933Y105 287,641 37,050 14.79 17,051 17.62 0.1324
2014-11-24 2014-09-30 13F MERCK Common Stock 58933Y105 287,641 17,051
2014-08-20 2014-06-30 13F/A-1 MERCK Common Stock 58933Y105 250,591 51,207 25.68 14,497 28.08 0.1245
2014-08-15 2014-06-30 13F MTS SYSTEMS Common Stock 58933Y105 8,620 584
2014-05-15 2014-03-31 13F MERCK Common Stock 58933Y105 199,384 -5,872 -2.86 11,319 4.11 0.1105
2014-02-11 2013-12-31 13F MERCK Common Stock 58933Y105 205,256 40,041 24.24 10,872 38.22 0.1100
2013-11-13 2013-09-30 13F MERCK Common Stock 58933Y105 165,215 47,416 40.25 7,866 43.75 0.0882
2013-08-02 2013-06-30 13F MERCK Common Stock 58933Y105 117,799 117,799 5,472 0.0677
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.