Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionRonald Blue Trust, Inc.
Latest Disclosed Ownership48,939 shares
Latest Disclosed Value $ 5,886,771
Ronald Blue Trust, Inc. reports 0.66% increase in ownership of MRK / Merck & Co., Inc.

On April 20, 2026 - Ronald Blue Trust, Inc. filed a 13F-HR form disclosing ownership of 48,939 shares of Merck & Co., Inc. (MX:MRK) valued at $5,886,771 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 48,619 shares of Merck & Co., Inc.. This represents a change in shares of 0.66% 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 COM 58933Y105 48,939 320 0.66 5,887 15.03 0.0674
2026-01-16 2025-12-31 13F MERCK COM 58933Y105 48,619 -1,333 -2.67 5,118 22.07 0.0578
2025-10-16 2025-09-30 13F MERCK COM 58933Y105 49,952 -2,711 -5.15 4,192 0.58 0.0471
2025-07-24 2025-06-30 13F MERCK COM 58933Y105 52,663 728 1.40 4,169 -10.58 0.0492
2025-04-21 2025-03-31 13F MERCK COM 58933Y105 51,935 3,596 7.44 4,662 -3.06 0.0597
2025-01-30 2024-12-31 13F/A-1 MERCK COM 58933Y105 48,339 14,664 43.55 4,809 15.33 0.0616
2025-01-22 2024-12-31 13F MERCK COM 58933Y105 56,371 22,696 6,402 0.0353
2024-10-17 2024-09-30 13F MERCK COM 58933Y105 33,675 15,026 80.57 4,169 69.47 0.0544
2024-07-18 2024-06-30 13F MERCK COM 58933Y105 18,649 7,916 73.75 2,461 73.73 0.0337
2024-05-01 2024-03-31 13F MERCK COM 58933Y105 10,733 -7,774 -42.01 1,416 141,500.00 0.0200
2024-01-18 2023-12-31 13F MERCK COM 58933Y105 18,507 -2,756 -12.96 2 -50.00 0.0306
2023-10-11 2023-09-30 13F MERCK COM 58933Y105 21,263 5,201 32.38 2 100.00 0.0375
2023-07-14 2023-06-30 13F MERCK COM 58933Y105 16,062 -2,525 -13.58 2 -50.00 0.0271
2023-04-17 2023-03-31 13F MERCK COM 58933Y105 18,587 78 0.42 2 100.00 0.0338
2023-01-17 2022-12-31 13F MERCK COM 58933Y105 18,509 6,520 54.38 2 -99.91 0.0285
2022-10-21 2022-09-30 13F MERCK COM 58933Y105 11,989 963 8.73 1,093 20.91 0.0192
2022-08-09 2022-06-30 13F MERCK COM 58933Y105 11,026 11,026 904 0.0141
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.