Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionGlobal Trust Asset Management, LLC
Latest Disclosed Ownership25,577 shares
Latest Disclosed Value $ 3,076,706
Global Trust Asset Management, LLC reports 13.75% increase in ownership of MRK / Merck & Co., Inc.

On April 23, 2026 - Global Trust Asset Management, LLC filed a 13F-HR form disclosing ownership of 25,577 shares of Merck & Co., Inc. (MX:MRK) valued at $3,076,706 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 22,485 shares of Merck & Co., Inc.. This represents a change in shares of 13.75% 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.

Upgrade to unlock premium data and export to Excel .

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 COM 58933Y105 25,577 3,092 13.75 3,077 30.01 1.1764
2026-01-20 2025-12-31 13F MERCK COM 58933Y105 22,485 15,714 232.08 2,367 316.55 0.9345
2025-10-28 2025-09-30 13F MERCK COM 58933Y105 6,771 -1,397 -17.10 568 -12.07 0.2570
2025-07-17 2025-06-30 13F MERCK COM 58933Y105 8,168 -1,452 -15.09 647 -25.14 0.3458
2025-04-18 2025-03-31 13F MERCK COM 58933Y105 9,620 -3,340 -25.77 863 -33.05 0.5262
2025-01-17 2024-12-31 13F MERCK COM 58933Y105 12,960 -2,101 -13.95 1,289 -24.62 0.4890
2024-10-23 2024-09-30 13F MERCK COM 58933Y105 15,061 -293 -1.91 1,710 -10.00 0.6337
2024-07-11 2024-06-30 13F MERCK COM 58933Y105 15,354 -975 -5.97 1,901 -11.79 0.7659
2024-04-12 2024-03-31 13F MERCK COM 58933Y105 16,329 -469 -2.79 2,155 17.64 0.8848
2024-01-16 2023-12-31 13F MERCK COM 58933Y105 16,798 127 0.76 1,831 6.70 0.8033
2023-10-12 2023-09-30 13F MERCK COM 58933Y105 16,671 -529 -3.08 1,716 -13.51 0.8192
2023-07-24 2023-06-30 13F MERCK COM 58933Y105 17,200 -114 -0.66 1,985 7.71 0.8918
2023-04-14 2023-03-31 13F MERCK COM 58933Y105 17,314 -940 -5.15 1,842 -9.04 0.8788
2023-02-14 2022-12-31 13F MERCK & CO INC COM Stock 58933Y105 18,254 -310 -1.67 2,025 26.64 1.0229
2022-10-07 2022-09-30 13F MERCK COM 58933Y105 18,564 -476 -2.50 1,599 -7.89 0.8340
2022-07-12 2022-06-30 13F MERCK COM 58933Y105 19,040 5,404 39.63 1,736 55.14 0.8538
2022-04-15 2022-03-31 13F/A-1 MERCK COM 58933Y105 13,636 776 6.03 1,119 13.49 0.4486
2022-04-12 2022-03-31 13F MERCK & CO. COM 58933Y105 13,636 776 1,119 0.4444
2022-01-18 2021-12-31 13F MERCK COM 58933Y105 12,860 -3,030 -19.07 986 -17.35 0.3882
2021-10-07 2021-09-30 13F MERCK COM 58933Y105 15,890 4,370 37.93 1,193 33.15 0.5332
2021-07-13 2021-06-30 13F MERCK COM 58933Y105 11,520 2,680 30.32 896 31.38 0.4263
2021-04-14 2021-03-31 13F MERCK & CO. COM 58933Y105 8,840 -357 -3.88 682 -9.31 0.3759
2021-01-13 2020-12-31 13F MERCK & CO. COM 58933Y105 9,197 118 1.30 752 1.48 0.4134
2020-11-17 2020-09-30 13F MERCK & CO. COM 58933Y105 9,079 -5 -0.06 741 5.56 0.4736
2020-07-08 2020-06-30 13F MERCK & CO. COM 58933Y105 9,084 75 0.83 702 1.30 0.4902
2020-04-06 2020-03-31 13F MERCK & CO. COM 58933Y105 9,009 -6,539 -42.06 693 -50.99 0.5419
2020-02-13 2019-12-31 13F MERCK COM 58933Y105 15,548 6,800 77.73 1,414 92.12 0.8511
2019-10-15 2019-09-30 13F MERCK COM 58933Y105 8,748 -7,752 -46.98 736 -0.67 0.4881
2019-07-23 2019-06-30 13F MERCK COM 58933Y105 16,500 7,752 88.61 741 1.79 0.4968
2019-04-05 2019-03-31 13F MERCK COM 58933Y105 8,748 -10,684 -54.98 728 -50.98 0.5393
2019-01-11 2018-12-31 13F MERCK COM 58933Y105 19,432 7,405 61.57 1,485 74.09 1.3224
2018-10-16 2018-09-30 13F MERCK COM 58933Y105 12,027 3,094 34.64 853 57.38 0.5908
2018-07-18 2018-06-30 13F MERCK COM 58933Y105 8,933 200 2.29 542 13.87 0.4077
2018-04-26 2018-03-31 13F MERCK COM 58933Y105 8,733 -55 -0.63 476 -3.84 0.3752
2018-02-02 2017-12-31 13F MERCK COM 58933Y105 8,788 8,788 495 0.3517
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.