Merck & Co., Inc.
BG ˙ BUL ˙ US58933Y1055
SecurityBG:6MK / Merck & Co., Inc.
InstitutionGlenview Trust Co
Latest Disclosed Ownership376,892 shares
Latest Disclosed Value $ 45,336,337
Glenview Trust Co reports 2.62% increase in ownership of 6MK / Merck & Co., Inc.

On May 8, 2026 - Glenview Trust Co filed a 13F-HR form disclosing ownership of 376,892 shares of Merck & Co., Inc. (BG:6MK) valued at $45,336,337 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 367,276 shares of Merck & Co., Inc.. This represents a change in shares of 2.62% 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 376,892 9,616 2.62 45,336 17.27 0.3692
2026-02-09 2025-12-31 13F MERCK COM 58933Y105 367,276 -123 -0.03 38,659 25.37 0.5965
2025-11-07 2025-09-30 13F MERCK COM 58933Y105 367,399 -2,490 -0.67 30,836 5.31 0.4890
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 369,889 -1,637 -0.44 29,280 -12.20 0.5066
2025-05-20 2025-03-31 13F/A-1 MERCK COM 58933Y105 371,526 29,536 8.64 33,348 -1.98 0.6480
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 341,990 0 34,021 0.3315
2025-02-10 2024-12-31 13F MERCK COM 58933Y105 341,990 -14,283 -4.01 34,021 -15.91 0.6375
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 356,273 12,742 3.71 40,458 -4.87 0.7782
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 343,531 5,159 1.52 42,529 -4.75 0.8557
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 338,372 16,549 5.14 44,648 27.26 0.9591
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 321,823 2,727 0.85 35,085 6.80 0.8616
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 319,096 7,604 2.44 32,851 -8.61 0.9064
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 311,492 2,630 0.85 35,943 9.39 0.9810
2023-05-09 2023-03-31 13F MERCK COM 58933Y105 308,862 7,612 2.53 32,860 -1.69 0.9837
2023-02-08 2022-12-31 13F MERCK COM 58933Y105 301,250 13,410 4.66 33,424 34.83 1.1074
2022-11-04 2022-09-30 13F MERCK COM 58933Y105 287,840 11,984 4.34 24,789 -1.44 0.9393
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 275,856 12,387 4.70 25,150 16.34 0.9239
2022-05-11 2022-03-31 13F MERCK COM 58933Y105 263,469 19,367 7.93 21,618 15.55 0.7020
2022-02-10 2021-12-31 13F MERCK COM 58933Y105 244,102 692 0.28 18,708 2.33 0.6191
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 243,410 5,698 2.40 18,282 -1.11 0.7063
2021-08-11 2021-06-30 13F MERCK COM 58933Y105 237,712 14,268 6.39 18,487 7.33 0.7141
2021-05-12 2021-03-31 13F MERCK & CO. COM 58933Y105 223,444 14,220 6.80 17,225 0.64 0.7417
2021-02-02 2020-12-31 13F MERCK & CO. COM 58933Y105 209,224 1,318 0.63 17,115 -0.75 0.7956
2020-11-12 2020-09-30 13F MERCK & CO. COM 58933Y105 207,906 3,232 1.58 17,245 8.96 0.8936
2020-08-12 2020-06-30 13F MERCK & CO. COM 58933Y105 204,674 19,560 10.57 15,827 11.13 0.9018
2020-04-28 2020-03-31 13F MERCK & CO. COM 58933Y105 185,114 7,074 3.97 14,242 -12.05 0.9876
2020-02-06 2019-12-31 13F MERCK COM 58933Y105 178,040 933 0.53 16,193 8.61 0.9060
2019-11-14 2019-09-30 13F MERCK COM 58933Y105 177,107 5,771 3.37 14,909 3.78 0.9016
2019-08-08 2019-06-30 13F MERCK COM 58933Y105 171,336 15,721 10.10 14,366 10.99 0.8925
2019-05-14 2019-03-31 13F MERCK COM 58933Y105 155,615 12,596 8.81 12,943 18.44 0.8301
2019-02-14 2018-12-31 13F MERCK COM 58933Y105 143,019 16,806 13.32 10,928 22.05 0.8075
2018-11-14 2018-09-30 13F MERCK COM 58933Y105 126,213 10,892 9.44 8,954 27.91 0.5645
2018-08-10 2018-06-30 13F MERCK COM 58933Y105 115,321 31,156 37.02 7,000 52.71 0.5204
2018-05-15 2018-03-31 13F/A-1 MERCK COM 58933Y105 84,165 26,254 45.34 4,584 40.66 0.3165
2018-05-14 2018-03-31 13F MERCK COM 58933Y105 84,165 4,584
2018-02-06 2017-12-31 13F MERCK COM 58933Y105 57,911 -117 -0.20 3,259 -12.30 0.2248
2017-11-07 2017-09-30 13F MERCK COM 58933Y105 58,028 2,887 5.24 3,716 5.15 0.2721
2017-08-11 2017-06-30 13F MERCK COM 58933Y105 55,141 -479 -0.86 3,534 0.00 0.2743
2017-05-10 2017-03-31 13F MERCK COM 58933Y105 55,620 282 0.51 3,534 8.47 0.2793
2017-02-14 2016-12-31 13F/A-1 MERCK COM 58933Y105 55,338 5,661 11.40 3,258 24.16 0.2700
2017-02-10 2016-12-31 13F MERCK COM 58933Y105 55,338 3,258
2017-04-28 2015-12-31 13F MERCK COM 58933Y105 49,677 6,284 14.48 2,624 6.45 0.2726
2017-05-01 2014-12-31 13F MERCK COM 58933Y105 43,393 -4,052 -8.54 2,465 3.79 0.2627
2017-05-02 2013-12-31 13F MERCK COM 58933Y105 47,445 1,415 3.07 2,375 25.99 0.2732
2017-05-03 2012-12-31 13F MERCK COM 58933Y105 46,030 6,595 16.72 1,885 26.77 0.2789
2017-05-04 2011-12-31 13F MERCK COM 58933Y105 39,435 8,623 27.99 1,487 33.96 0.2511
2017-05-05 2010-12-31 13F MERCK COM 58933Y105 30,812 5,186 20.24 1,110 18.59 0.1917
2017-05-08 2009-12-31 13F MERCK COM 58933Y105 25,626 -1,368 -5.07 936 14.01 0.1795
2017-05-09 2008-12-31 13F MERCK COM 589331107 26,994 26,994 821 0.1982
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.