머크 앤 컴퍼니(Merck & Co., Inc.)
DE ˙ XTRA ˙ US58933Y1055
€102.78 ↑2.84 (2.84%)
2026-06-04
주가
SecurityDE:6MK / Merck & Co., Inc.
InstitutionWebster Bank, N. A.
Latest Disclosed Ownership17,453 shares
Latest Disclosed Value $ 2,099,422
Webster Bank, N. A. ownership in 6MK / Merck & Co., Inc.

On April 17, 2026 - Webster Bank, N. A. filed a 13F-HR form disclosing ownership of 17,453 shares of Merck & Co., Inc. (DE:6MK) valued at $1,818,603 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 17,453 shares of Merck & Co., Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,793,819 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)
2026-04-17 2026-03-31 13F MERCK COM 58933Y105 17,453 0 0.00 2,099 14.26 0.1906
2026-01-23 2025-12-31 13F MERCK COM 58933Y105 17,453 -85 -0.48 1,837 24.88 0.1723
2025-10-23 2025-09-30 13F MERCK COM 58933Y105 17,538 -437 -2.43 1,472 3.45 0.1416
2025-07-08 2025-06-30 13F MERCK COM 58933Y105 17,975 -2,996 -14.29 1,423 -24.44 0.1470
2025-04-04 2025-03-31 13F MERCK COM 58933Y105 20,971 -933 -4.26 1,882 -13.63 0.2069
2025-01-22 2024-12-31 13F Merck COM 58933Y105 21,904 -38 -0.17 2,179 -12.53 0.2341
2024-10-10 2024-09-30 13F Merck COM 58933Y105 21,942 -752 -3.31 2,492 -11.32 0.2651
2024-07-12 2024-06-30 13F Merck COM 58933Y105 22,694 500 2.25 2,810 -4.06 0.3080
2024-04-16 2024-03-31 13F Merck COM 58933Y105 22,194 -46 -0.21 2,928 20.79 0.3272
2024-01-23 2023-12-31 13F Merck COM 58933Y105 22,240 557 2.57 2,425 8.60 0.2969
2023-10-10 2023-09-30 13F Merck COM 58933Y105 21,683 17 0.08 2,232 -10.72 0.3019
2023-07-13 2023-06-30 13F Merck COM 58933Y105 21,666 -1,839 -7.82 2,500 0.00 0.3231
2023-04-13 2023-03-31 13F Merck COM 58933Y105 23,505 -1,567 -6.25 2,501 124,900.00 0.3260
2023-01-18 2022-12-31 13F Merck COM 58933Y105 25,072 -431 -1.69 3 -99.91 0.3759
2022-10-24 2022-09-30 13F Merck COM 58933Y105 25,503 -697 -2.66 2,196 -8.08 0.3183
2022-07-12 2022-06-30 13F Merck COM 58933Y105 26,200 -23,525 -47.31 2,389 -41.43 0.3260
2022-04-13 2022-03-31 13F Merck COM 58933Y105 49,725 23,425 89.07 4,079 102.33 0.2927
2022-01-12 2021-12-31 13F Merck COM 58933Y105 26,300 143 0.55 2,016 2.65 0.2087
2021-10-12 2021-09-30 13F Merck COM 58933Y105 26,157 -212 -0.80 1,964 -4.24 0.2193
2021-07-20 2021-06-30 13F Merck COM 58933Y105 26,369 -1,283 -4.64 2,051 -3.80 0.2244
2021-05-07 2021-03-31 13F Merck COM 58933Y105 27,652 -1,022 -3.56 2,132 -9.08 0.2428
2021-01-07 2020-12-31 13F Merck COM 58933Y105 28,674 -67 -0.23 2,345 -1.64 0.2756
2020-10-22 2020-09-30 13F Merck COM 58933Y105 28,741 -1,261 -4.20 2,384 2.76 0.3130
2020-07-09 2020-06-30 13F Merck COM 58933Y105 30,002 1,248 4.34 2,320 4.88 0.3290
2020-04-21 2020-03-31 13F Merck COM 58933Y105 28,754 -37 -0.13 2,212 -15.54 0.3676
2020-01-14 2019-12-31 13F Merck COM 58933Y105 28,791 -1,009 -3.39 2,619 4.43 0.3346
2019-10-01 2019-09-30 13F Merck COM 58933Y105 29,800 193 0.65 2,508 1.01 0.3395
2019-07-11 2019-06-30 13F Merck COM 58933Y105 29,607 2,004 7.26 2,483 8.19 0.3419
2019-04-10 2019-03-31 13F MERCK COM 58933Y105 27,603 -973 -3.40 2,295 5.08 0.3281
2019-01-09 2018-12-31 13F MERCK COM 58933Y105 28,576 -1,304 -4.36 2,184 3.02 0.3527
2018-10-12 2018-09-30 13F MERCK COM 58933Y105 29,880 -256 -0.85 2,120 15.85 0.2954
2018-07-12 2018-06-30 13F MERCK COM 58933Y105 30,136 0 0.00 1,830 11.45 0.2644
2018-04-19 2018-03-31 13F Merck COM 58933Y105 30,136 0 0.00 1,642 -3.18 0.2371
2018-01-23 2017-12-31 13F Merck COM 58933Y105 30,136 -1,277 -4.07 1,696 -15.71 0.2333
2017-10-12 2017-09-30 13F Merck COM 58933Y105 31,413 875 2.87 2,012 2.81 0.2924
2017-07-12 2017-06-30 13F Merck COM 58933Y105 30,538 -360 -1.17 1,957 -0.31 0.2897
2017-05-01 2017-03-31 13F Merck COM 58933Y105 30,898 617 2.04 1,963 10.10 0.2960
2017-02-15 2016-12-31 13F Merck COM 58933Y105 30,281 7 0.02 1,783 -5.61 0.2607
2016-10-14 2016-09-30 13F MERCK COMMON STOCK 58933Y105 30,274 -440 -1.43 1,889 6.78 0.2749
2016-07-11 2016-06-30 13F MERCK COMMON STOCK 58933Y105 30,714 -1,005 -3.17 1,769 5.42 0.2594
2016-04-12 2016-03-31 13F MERCK COMMON STOCK 58933Y105 31,719 6,279 24.68 1,678 24.85 0.2620
2016-01-13 2015-12-31 13F MERCK COMMON STOCK 58933Y105 25,440 8,326 48.65 1,344 59.05 0.2157
2015-11-12 2015-09-30 13F MERCK COMMON STOCK 58933Y105 17,114 578 3.50 845 -10.30 0.1557
2015-07-09 2015-06-30 13F MERCK COMMON STOCK 58933Y105 16,536 -571 -3.34 942 -4.17 0.1577
2015-04-30 2015-03-31 13F MERCK COMMON STOCK 58933Y105 17,107 1,675 10.85 983 12.21 0.1625
2015-01-15 2014-12-31 13F MERCK COMMON STOCK 58933Y105 15,432 -650 -4.04 876 -8.08 0.1469
2014-10-15 2014-09-30 13F MERCK COMMON STOCK 58933Y105 16,082 -861 -5.08 953 -2.76 0.1685
2014-07-09 2014-06-30 13F MERCK COMMON STOCK 58933Y105 16,943 -5,375 -24.08 980 -22.65 0.1691
2014-04-11 2014-03-31 13F MERCK COMMON STOCK 58933Y105 22,318 -477 -2.09 1,267 11.04 0.1750
2014-01-28 2013-12-31 13F MERCK COMMON STOCK 58933Y105 22,795 -2,563 -10.11 1,141 -5.47 0.1597
2013-11-05 2013-09-30 13F MERCK COMMON STOCK 58933Y105 25,358 -550 -2.12 1,207 0.25 0.1858
2013-08-06 2013-06-30 13F MERCK COMMON STOCK 58933Y105 25,908 25,908 1,204 0.1519
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.