默克公司
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSimmons Bank
Latest Disclosed Ownership71,297 shares
Latest Disclosed Value $ 8,576,333
Simmons Bank reports 0.02% increase in ownership of MRK / Merck & Co., Inc.

On April 23, 2026 - Simmons Bank filed a 13F-HR form disclosing ownership of 71,297 shares of Merck & Co., Inc. (MX:MRK) valued at $8,576,333 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 71,280 shares of Merck & Co., Inc.. This represents a change in shares of 0.02% 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)
2026-04-23 2026-03-31 13F MERCK COMMON STOCK 58933Y105 71,297 17 0.02 8,576 14.32 0.5744
2026-02-05 2025-12-31 13F MERCK COMMON STOCK 58933Y105 71,280 691 0.98 7,503 26.64 0.5017
2025-11-04 2025-09-30 13F MERCK COMMON STOCK 58933Y105 70,589 -3,928 -5.27 5,925 0.44 0.3949
2025-08-06 2025-06-30 13F MERCK COMMON STOCK 58933Y105 74,517 112 0.15 5,899 -11.68 0.4205
2025-04-29 2025-03-31 13F MERCK COMMON STOCK 58933Y105 74,405 -7,728 -9.41 6,679 -18.26 0.5035
2025-02-05 2024-12-31 13F MERCK COMMON STOCK 58933Y105 82,133 -2,778 -3.27 8,171 -15.27 0.5974
2024-11-05 2024-09-30 13F MERCK COMMON STOCK 58933Y105 84,911 -1,826 -2.11 9,642 -10.21 0.6981
2024-07-26 2024-06-30 13F MERCK COMMON STOCK 58933Y105 86,737 -2,079 -2.34 10,738 -8.37 0.8106
2024-05-14 2024-03-31 13F MERCK COMMON STOCK 58933Y105 88,816 -960 -1.07 11,719 19.74 0.8805
2024-02-06 2023-12-31 13F MERCK COMMON STOCK 58933Y105 89,776 -1,034 -1.14 9,787 4.70 0.7992
2023-10-26 2023-09-30 13F MERCK COMMON STOCK 58933Y105 90,810 -158 -0.17 9,349 -10.94 0.8287
2023-08-03 2023-06-30 13F MERCK COMMON STOCK 58933Y105 90,968 -1,645 -1.78 10,497 6.53 0.8818
2023-04-28 2023-03-31 13F MERCK COMMON STOCK 58933Y105 92,613 2,467 2.74 9,853 -1.48 0.8409
2023-02-08 2022-12-31 13F MERCK COMMON STOCK 58933Y105 90,146 -65 -0.07 10,002 28.73 0.8595
2022-10-27 2022-09-30 13F MERCK COMMON STOCK 58933Y105 90,211 -1,077 -1.18 7,769 -6.66 0.7246
2022-07-29 2022-06-30 13F MERCK COMMON STOCK 58933Y105 91,288 -22,193 -19.56 8,323 -10.61 0.7295
2022-04-21 2022-03-31 13F MERCK COMMON STOCK 58933Y105 113,481 -1,954 -1.69 9,311 5.24 0.6972
2022-01-28 2021-12-31 13F MERCK COMMON STOCK 58933Y105 115,435 -1,918 -1.63 8,847 0.36 0.6194
2021-10-26 2021-09-30 13F MERCK COMMON STOCK 58933Y105 117,353 -10,106 -7.93 8,815 -11.08 0.6400
2021-08-05 2021-06-30 13F MERCK COMMON STOCK 58933Y105 127,459 -7,537 -5.58 9,913 -4.75 0.7162
2021-05-06 2021-03-31 13F MERCK COMMON STOCK 58933Y105 134,996 -7,903 -5.53 10,407 -10.98 0.7856
2021-02-08 2020-12-31 13F MERCK COMMON STOCK 58933Y105 142,899 -7,590 -5.04 11,690 -6.35 0.9278
2020-11-13 2020-09-30 13F MERCK COMMON STOCK 58933Y105 150,489 -3,010 -1.96 12,483 5.17 1.0245
2020-08-14 2020-06-30 13F MERCK COMMON STOCK 58933Y105 153,499 3,101 2.06 11,869 2.57 0.9798
2020-05-14 2020-03-31 13F MERCK COMMON STOCK 58933Y105 150,398 13,871 10.16 11,572 -6.81 1.0068
2020-01-31 2019-12-31 13F MERCK COMMON STOCK 58933Y105 136,527 -1,444 -1.05 12,417 6.90 1.1137
2019-11-13 2019-09-30 13F MERCK COMMON STOCK 58933Y105 137,971 3,483 2.59 11,615 3.00 1.1426
2019-08-13 2019-06-30 13F MERCK COMMON STOCK 58933Y105 134,488 -4,202 -3.03 11,277 -2.24 1.0913
2019-05-13 2019-03-31 13F MERCK COMMON STOCK 58933Y105 138,690 737 0.53 11,535 9.43 1.1226
2019-01-24 2018-12-31 13F MERCK COMMON STOCK 58933Y105 137,953 3,610 2.69 10,541 10.60 1.1794
2018-11-13 2018-09-30 13F MERCK COMMON STOCK 58933Y105 134,343 -148 -0.11 9,531 16.77 0.9388
2018-08-13 2018-06-30 13F MERCK COMMON STOCK 58933Y105 134,491 4,058 3.11 8,162 14.89 0.7414
2018-05-14 2018-03-31 13F MERCK COMMON STOCK 58933Y105 130,433 17,853 15.86 7,104 12.16 0.6375
2018-02-13 2017-12-31 13F MERCK COMMON STOCK 58933Y105 112,580 -8,214 -6.80 6,334 -18.11 0.6379
2017-11-14 2017-09-30 13F MERCK COMMON STOCK 58933Y105 120,794 971 0.81 7,735 0.73 0.8008
2017-08-15 2017-06-30 13F MERCK COMMON STOCK 58933Y105 119,823 29,522 32.69 7,679 33.83 0.8605
2017-05-11 2017-03-31 13F MERCK COMMON STOCK 58933Y105 90,301 -807 -0.89 5,738 6.99 0.6329
2017-02-08 2016-12-31 13F MERCK COMMON STOCK 58933Y105 91,108 -312 -0.34 5,363 -6.01 0.6023
2016-10-31 2016-09-30 13F MERCK COMMON STOCK 58933Y105 91,420 -108 -0.12 5,706 8.21 0.6280
2016-08-03 2016-06-30 13F MERCK COMMON STOCK 58933Y105 91,528 6,215 7.28 5,273 16.81 0.5864
2016-05-13 2016-03-31 13F MERCK COMMON STOCK 58933Y105 85,313 85,313 4,514 0.5028
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.