머크 앤 컴퍼니(Merck & Co., Inc.)
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionProfund Advisors Llc
Latest Disclosed Ownership33,753 shares
Latest Disclosed Value $ 4,060,148
Profund Advisors Llc reports 28.17% decrease in ownership of MRK / Merck & Co., Inc.

On April 24, 2026 - Profund Advisors Llc filed a 13F-HR form disclosing ownership of 33,753 shares of Merck & Co., Inc. (MX:MRK) valued at $4,060,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 46,989 shares of Merck & Co., Inc.. This represents a change in shares of -28.17% 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)
2026-04-24 2026-03-31 13F MERCK COM 58933Y105 33,753 -13,236 -28.17 4,060 -17.91 0.1491
2026-02-06 2025-12-31 13F MERCK COM 58933Y105 46,989 7,186 18.05 4,946 48.08 0.1503
2025-11-06 2025-09-30 13F MERCK COM 58933Y105 39,803 -819 -2.02 3,341 3.89 0.1086
2025-08-07 2025-06-30 13F MERCK COM 58933Y105 40,622 -2,334 -5.43 3,216 -16.60 0.1158
2025-05-08 2025-03-31 13F MERCK COM 58933Y105 42,956 -967 -2.20 3,856 -11.76 0.1675
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 43,923 -4,746 -9.75 4,369 -20.94 0.1595
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 48,669 1,565 3.32 5,527 -5.23 0.2091
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 47,104 -1,858 -3.79 5,831 -9.74 0.2162
2024-05-08 2024-03-31 13F MERCK COM 58933Y105 48,962 -2,249 -4.39 6,461 15.71 0.2516
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 51,211 2,126 4.33 5,583 10.49 0.2398
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 49,085 -1,007 -2.01 5,053 -12.58 0.2794
2023-08-10 2023-06-30 13F MERCK COM 58933Y105 50,092 987 2.01 5,780 10.64 0.3101
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 49,105 -2,108 -4.12 5,224 -8.06 0.3228
2023-02-02 2022-12-31 13F MERCK COM 58933Y105 51,213 -419 -0.81 5,682 27.77 0.3687
2022-11-07 2022-09-30 13F MERCK COM 58933Y105 51,632 -3,963 -7.13 4,447 -12.27 0.3199
2022-08-01 2022-06-30 13F MERCK COM 58933Y105 55,595 -6,066 -9.84 5,069 0.20 0.3219
2022-05-10 2022-03-31 13F MERCK COM 58933Y105 61,661 -6,579 -9.64 5,059 -3.27 0.2124
2022-02-08 2021-12-31 13F MERCK COM 58933Y105 68,240 719 1.06 5,230 3.12 0.1710
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 67,521 422 0.63 5,072 -2.82 0.1709
2021-08-12 2021-06-30 13F MERCK COM 58933Y105 67,099 110 0.16 5,219 1.07 0.1753
2021-05-14 2021-03-31 13F MERCK & CO. COM 58933Y105 66,989 -2,345 -3.38 5,164 -8.96 0.1985
2021-02-09 2020-12-31 13F MERCK & CO. COM 58933Y105 69,334 -30,051 -30.24 5,672 -31.20 0.2479
2020-11-13 2020-09-30 13F MERCK & CO. COM 58933Y105 99,385 -14,596 -12.81 8,244 -6.47 0.4242
2020-08-03 2020-06-30 13F MERCK & CO. COM 58933Y105 113,981 25,286 28.51 8,814 29.16 0.4904
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 88,695 -25,736 -22.49 6,824 -34.43 0.5124
2020-02-18 2019-12-31 13F MERCK COM 58933Y105 114,431 6,632 6.15 10,407 14.68 0.4531
2019-11-12 2019-09-30 13F MERCK COM 58933Y105 107,799 16,759 18.41 9,075 18.88 0.4589
2019-08-13 2019-06-30 13F MERCK COM 58933Y105 91,040 -21,191 -18.88 7,634 -18.21 0.3619
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 112,231 -5,752 -4.88 9,334 3.54 0.4488
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 117,983 -27,969 -19.16 9,015 -12.93 0.5576
2018-11-13 2018-09-30 13F MERCK COM 58933Y105 145,952 20,460 16.30 10,354 35.93 0.3928
2018-08-13 2018-06-30 13F MERCK COM 58933Y105 125,492 -13,895 -9.97 7,617 0.33 0.3043
2018-05-14 2018-03-31 13F MERCK COM 58933Y105 139,387 -6,582 -4.51 7,592 -7.57 0.3023
2018-02-14 2017-12-31 13F MERCK COM 58933Y105 145,969 -36,456 -19.98 8,214 -29.68 0.3166
2017-11-13 2017-09-30 13F MERCK COM 58933Y105 182,425 5,573 3.15 11,681 3.06 0.4862
2017-08-11 2017-06-30 13F MERCK COM 58933Y105 176,852 2,791 1.60 11,334 2.48 0.5135
2017-04-25 2017-03-31 13F MERCK COM 58933Y105 174,061 12,658 7.84 11,060 16.40 0.4943
2017-02-13 2016-12-31 13F MERCK COM 58933Y105 161,403 -16,174 -9.11 9,502 -14.27 0.4375
2016-11-10 2016-09-30 13F MERCK COM 58933Y105 177,577 -4,531 -2.49 11,083 5.64 0.5273
2016-08-12 2016-06-30 13F MERCK COM 58933Y105 182,108 -14,726 -7.48 10,491 0.74 0.5107
2016-05-06 2016-03-31 13F MERCK & CO INC COM 58933Y105 196,834 -50,178 -20.31 10,414 -20.18 0.5397
2016-02-05 2015-12-31 13F MERCK & CO INC COM 58933Y105 247,012 -19,639 -7.37 13,047 -0.93 0.6191
2015-11-06 2015-09-30 13F MERCK & CO INC COM 58933Y105 266,651 -76,218 -22.23 13,170 -32.53 0.7505
2015-08-11 2015-06-30 13F MERCK & CO INC COM 58933Y105 342,869 -684 -0.20 19,520 -1.15 0.8082
2015-05-08 2015-03-31 13F MERCK & CO INC COM 58933Y105 343,553 343,553 0.00 19,747 0.7681
2015-01-30 2014-12-31 13F MERCK & CO INC COM 58933Y105 0 -293,866 -100.00 0 -100.00
2014-11-06 2014-09-30 13F MERCK & CO INC COM 58933Y105 293,866 37,921 14.82 17,420 17.66 0.8160
2014-08-08 2014-06-30 13F MERCK & CO INC COM 58933Y105 255,945 -12,269 -4.57 14,806 -2.76 0.6493
2014-05-07 2014-03-31 13F MERCK & CO INC COM 58933Y105 268,214 40,842 17.96 15,227 33.80 0.6920
2014-02-04 2013-12-31 13F MERCK & CO INC COM 58933Y105 227,372 14,824 6.97 11,380 12.46 0.5100
2013-11-07 2013-09-30 13F MERCK & CO INC COM 58933Y105 212,548 -4,001 -1.85 10,119 0.60 0.5371
2013-07-25 2013-06-30 13F MERCK & CO INC COM 58933Y105 216,549 216,549 10,059 0.7108
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.