머크 앤 컴퍼니(Merck & Co., Inc.)
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership458,630 shares
Latest Disclosed Value $ 55,169
Amalgamated Bank reports 1.18% decrease in ownership of MRK / Merck & Co., Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 458,630 shares of Merck & Co., Inc. (MX:MRK) valued at $55,169 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 464,116 shares of Merck & Co., Inc.. This represents a change in shares of -1.18% 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)
2026-05-08 2026-03-31 13F MERCK COM 58933Y105 458,630 -5,486 -1.18 55 14.58 0.4222
2026-02-05 2025-12-31 13F MERCK COM 58933Y105 464,116 -11,172 -2.35 49 23.08 0.3526
2025-10-29 2025-09-30 13F MERCK COM 58933Y105 475,288 -9,994 -2.06 40 2.63 0.2850
2025-08-04 2025-06-30 13F MERCK COM 58933Y105 485,282 -55,022 -10.18 38 -20.83 0.2965
2025-04-25 2025-03-31 13F MERCK COM 58933Y105 540,304 13,211 2.51 48 -7.69 0.4150
2025-02-04 2024-12-31 13F MERCK COM 58933Y105 527,093 -27,008 -4.87 52 -16.13 0.4304
2024-10-30 2024-09-30 13F MERCK COM 58933Y105 554,101 9,667 1.78 63 -7.46 0.5183
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 544,434 14,460 2.73 67 -2.90 0.5741
2024-04-23 2024-03-31 13F MERCK COM 58933Y105 529,974 -86,601 -14.05 70 2.99 0.5980
2024-02-06 2023-12-31 13F MERCK COM 58933Y105 616,575 -31,568 -4.87 67 1.52 0.5363
2023-11-08 2023-09-30 13F MERCK COM 58933Y105 648,143 -112,586 -14.80 67 -24.14 0.5681
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 760,729 49,842 7.01 88 16.00 0.7104
2023-05-02 2023-03-31 13F MERCK COM 58933Y105 710,887 33,774 4.99 76 0.00 0.6447
2023-02-10 2022-12-31 13F MERCK COM 58933Y105 677,113 -13,751 -1.99 75 -99.87 0.6700
2022-11-09 2022-09-30 13F MERCK COM 58933Y105 690,864 35,932 5.49 59,497 -0.36 0.5744
2022-08-15 2022-06-30 13F MERCK COM 58933Y105 654,932 -12,027 -1.80 59,710 9.11 0.5566
2022-08-25 2022-03-31 13F/A-1 MERCK COM 58933Y105 666,959 -44,651 -6.27 54,724 0.34 0.4251
2022-06-30 2022-03-31 13F MERCK COM 58933Y105 666,959 -44,651 54,724 0.4346
2022-02-15 2021-12-31 13F/A-1 MERCK COM 58933Y105 711,610 25,575 3.73 54,538 5.84 0.4025
2022-02-15 2021-12-31 13F MERCK COM 58933Y105 711,610 25,575 54,538 0.4025
2021-10-29 2021-09-30 13F MERCK COM 58933Y105 686,035 -24,838 -3.49 51,528 -6.80 0.4351
2021-08-16 2021-06-30 13F MERCK COM 58933Y105 710,873 557,614 363.84 55,285 367.92 0.4432
2021-05-13 2021-03-31 13F MERCK COM 58933Y105 153,259 -7,110 -4.43 11,815 -9.93 0.4431
2021-02-12 2020-12-31 13F MERCK COM 58933Y105 160,369 -817 -0.51 13,118 -1.88 0.4971
2020-10-30 2020-09-30 13F MERCK COM 58933Y105 161,186 -4,679 -2.82 13,370 4.24 0.5813
2020-08-10 2020-06-30 13F MERCK COM 58933Y105 165,865 -257,393 -60.81 12,826 -60.61 0.5936
2020-05-13 2020-03-31 13F MERCK COM 58933Y105 423,258 -13,396 -3.07 32,565 -18.00 0.7962
2020-02-13 2019-12-31 13F MERCK COM 58933Y105 436,654 11,804 2.78 39,714 11.04 0.7308
2019-11-13 2019-09-30 13F MERCK COM 58933Y105 424,850 81,276 23.66 35,764 24.14 0.7520
2019-08-14 2019-06-30 13F MERCK COM 58933Y105 343,574 7,326 2.18 28,809 3.01 0.6725
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 336,248 10,349 3.18 27,966 12.30 0.6777
2019-02-15 2018-12-31 13F MERCK COM 58933Y105 325,899 -14,194 -4.17 24,902 3.22 0.7056
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 340,093 -11,863 -3.37 24,126 12.93 0.5966
2018-07-18 2018-06-30 13F MERCK COM 58933Y105 351,956 8,191 2.38 21,364 14.09 0.5221
2018-05-22 2018-03-31 13F MERCK COM 58933Y105 343,765 -2,412 -0.70 18,725 -3.87 0.4967
2018-02-13 2017-12-31 13F MERCK COM 58933Y105 346,177 30,770 9.76 19,479 -3.55 0.5271
2017-11-09 2017-09-30 13F MERCK COM 58933Y105 315,407 6,129 1.98 20,196 1.89 0.6290
2017-08-10 2017-06-30 13F MERCK COM 58933Y105 309,278 114,608 58.87 19,822 60.26 0.6497
2017-05-12 2017-03-31 13F MERCK COM 58933Y105 194,670 11,238 6.13 12,369 14.54 0.6156
2017-02-14 2016-12-31 13F MERCK COM 58933Y105 183,432 52,711 40.32 10,799 32.37 0.4881
2016-11-15 2016-09-30 13F/A-1 MERCK COM 58933Y105 130,721 651 0.50 8,158 -1.43 0.4734
2016-11-14 2016-09-30 13F MERCK COM 58933Y105 58,991 3,682
2016-08-16 2016-06-30 13F MERCK COM 58933Y105 130,070 28,063 27.51 8,276 53.34 0.4788
2016-05-11 2016-03-31 13F MERCK COM 58933Y105 102,007 26,697 35.45 5,397 35.67 0.5259
2016-02-10 2015-12-31 13F MERCK COM 58933Y105 75,310 -23,966 -24.14 3,978 -18.87 0.4907
2015-11-04 2015-09-30 13F MERCK COM 58933Y105 99,276 2,851 2.96 4,903 -10.68 0.5144
2015-07-10 2015-06-30 13F MERCK COM 58933Y105 96,425 2,721 2.90 5,489 1.91 0.5391
2015-04-22 2015-03-31 13F MERCK COM 58933Y105 93,704 93,704 0.00 5,386 0.6575
2015-01-29 2014-12-31 13F MERCK COM 58933Y105 0 -81,826 -100.00 0 -100.00
2014-11-14 2014-09-30 13F MERCK COM 58933Y105 81,826 959 1.19 4,851 3.70 0.7219
2014-08-11 2014-06-30 13F MERCK COM 58933Y105 80,867 7,566 10.32 4,678 12.42 0.7059
2014-05-12 2014-03-31 13F MERCK CO INC COM COM 58933Y105 73,301 -1,359 -1.82 4,161 11.35 0.7170
2014-02-13 2013-12-31 13F MERCK CO INC COM COM 58933Y105 74,660 -752 -1.00 3,737 4.09 0.6352
2013-11-14 2013-09-30 13F MERCK CO INC COM COM 58933Y105 75,412 -1,951 -2.52 3,590 -0.11 1.1535
2013-08-15 2013-06-30 13F MERCK CO INC COM COM 58933Y105 77,363 5,117 7.08 3,594 12.49 1.3170
2014-02-13 2013-03-31 13F MERCK CO INC COM COM 58933Y105 72,246 4,237 6.23 3,195 14.76 0.9065
2014-02-11 2012-12-31 13F MERCK CO INC COM COM 58933Y105 68,009 25,914 61.56 2,784 46.68 1.1596
2014-02-11 2012-09-30 13F MERCK CO INC COM COM 58933Y105 42,095 1,335 3.28 1,898 11.52 1.2054
2014-02-11 2012-06-30 13F MERCK CO INC COM COM 58933Y105 40,760 -595 -1.44 1,702 7.18 1.2220
2014-02-11 2012-03-31 13F MERCK CO INC COM COM 58933Y105 41,355 -1,982 -4.57 1,588 -2.82 1.1030
2014-02-11 2011-12-31 13F MERCK CO INC COM COM 58933Y105 43,337 0 0.00 1,634 15.31 1.1743
2014-02-11 2011-09-30 13F MERCK CO INC COM COM 58933Y105 43,337 2,956 7.32 1,417 -0.56 1.1611
2014-02-11 2011-06-30 13F MERCK CO INC COM COM 58933Y105 40,381 -924 -2.24 1,425 4.55 1.0316
2014-02-11 2011-03-31 13F MERCK CO INC COM COM 58933Y105 41,305 -2,027 -4.68 1,363 -12.74 0.9904
2014-02-11 2010-12-31 13F MERCK CO INC COM COM 58933Y105 43,332 43,332 1,562 1.1960
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.