Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionFirst American Bank
Latest Disclosed Ownership67,757 shares
Latest Disclosed Value $ 8,150,485
First American Bank reports 1.86% increase in ownership of 6MK / Merck & Co., Inc.

On April 20, 2026 - First American Bank filed a 13F-HR form disclosing ownership of 67,757 shares of Merck & Co., Inc. (BG:6MK) valued at $8,150,485 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 66,522 shares of Merck & Co., Inc.. This represents a change in shares of 1.86% 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)
2026-04-20 2026-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 67,757 1,235 1.86 8,150 16.40 0.5114
2026-01-20 2025-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 66,522 -7 -0.01 7,002 25.42 0.4242
2025-10-20 2025-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 66,529 -9,312 -12.28 5,584 -7.00 0.3508
2025-07-16 2025-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 75,841 14,159 22.95 6,004 8.44 0.4116
2025-04-22 2025-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 61,682 -120 -0.19 5,537 -9.95 0.4095
2025-02-05 2024-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 61,802 -1,058 -1.68 6,148 -13.87 0.4331
2024-10-24 2024-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 62,860 -3,279 -4.96 7,138 -12.82 0.5129
2024-07-30 2024-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 66,139 467 0.71 8,188 -5.50 0.6129
2024-07-31 2024-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 65,672 -182 -0.28 8,665 20.70 0.6544
2024-07-31 2023-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 65,854 -1,314 -1.96 7,179 3.83 0.5998
2024-07-31 2023-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 67,168 240 0.36 6,915 -10.46 0.6253
2024-07-31 2023-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 66,928 638 0.96 7,723 9.50 0.6691
2024-07-31 2023-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 66,290 153 0.23 7,053 -3.88 0.6467
2024-07-31 2022-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 66,137 2,291 3.59 7,338 33.45 0.7038
2024-07-31 2022-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 63,846 1,148 1.83 5,498 -3.81 0.5744
2024-07-31 2022-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 62,698 -2,367 -3.64 5,716 7.08 0.5820
2024-07-31 2022-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 65,065 1,290 2.02 5,339 9.23 0.4519
2022-02-07 2021-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 63,775 -553 -0.86 4,887 1.14 0.2583
2021-10-28 2021-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 64,328 -241 -0.37 4,832 -3.78 0.2794
2021-07-13 2021-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 64,569 -45,889 -41.54 5,022 -41.03 0.2920
2021-04-08 2021-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 110,458 -7,091 -6.03 8,516 -11.44 0.5339
2021-01-06 2020-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 117,549 -145 -0.12 9,616 -1.50 0.6432
2020-10-09 2020-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 117,694 -1,602 -1.34 9,762 5.82 0.5782
2020-07-13 2020-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 119,296 -1,803 -1.49 9,225 -1.00 0.5812
2020-04-07 2020-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 121,099 342 0.28 9,318 -15.16 0.6944
2020-01-24 2019-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 120,757 -10,716 -8.15 10,983 -0.37 0.6878
2019-07-19 2019-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 131,473 -226 -0.17 11,024 0.65 0.7569
2019-04-02 2019-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 131,699 -7,786 -5.58 10,953 2.77 0.7903
2019-01-18 2018-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 139,485 3,678 2.71 10,658 10.63 0.8340
2018-10-16 2018-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 135,807 2,030 1.52 9,634 32.21 0.6634
2018-04-18 2018-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 133,777 16,541 14.11 7,287 10.48 0.5515
2018-01-23 2017-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 117,236 -25,365 -17.79 6,596 -27.75 0.5007
2017-10-06 2017-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 142,601 -3,209 -2.20 9,130 -2.30 0.6941
2017-07-10 2017-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 145,810 13,837 10.48 9,345 11.44 0.7422
2017-04-11 2017-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 131,973 18,882 16.70 8,386 25.97 0.6818
2017-01-20 2016-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 113,091 12,800 12.76 6,657 6.36 0.5601
2016-10-06 2016-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 100,291 10,284 11.43 6,259 20.71 0.5736
2016-07-20 2016-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 90,007 636 0.71 5,185 9.64 0.4985
2016-04-06 2016-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 89,371 947 1.07 4,729 1.24 0.4688
2016-01-14 2015-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 88,424 -1,650 -1.83 4,671 4.99 0.4739
2015-10-09 2015-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 90,074 1,172 1.32 4,449 -12.11 0.4878
2015-07-17 2015-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 88,902 -1,820 -2.01 5,062 -2.93 0.4993
2015-04-14 2015-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 90,722 599 0.66 5,215 1.88 0.5118
2015-01-22 2014-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 90,123 -230,164 -71.86 5,119 -73.04 0.5429
2014-10-09 2014-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 320,287 -1,079 -0.34 18,987 2.13 2.0667
2014-07-07 2014-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 321,366 -5,429 -1.66 18,591 0.20 2.0002
2014-04-15 2014-03-31 13F MERCK & CO INC COMMON STOCK 58933Y105 326,795 98,877 43.38 18,553 62.63 2.0575
2014-01-08 2013-12-31 13F MERCK & CO INC COMMON STOCK 58933Y105 227,918 2,930 1.30 11,408 6.51 1.3043
2013-10-04 2013-09-30 13F MERCK & CO INC COMMON STOCK 58933Y105 224,988 3,738 1.69 10,711 4.21 1.3208
2013-08-09 2013-06-30 13F/A-1 MERCK & CO INC COMMON STOCK 58933Y105 221,250 221,250 10,278 1.4262
2013-08-07 2013-06-30 13F MERCK & CO INC COMMON STOCK 58933Y105 436,525 20,278
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.