Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionViawealth, Llc
Latest Disclosed Ownership3,423 shares
Latest Disclosed Value $ 411,753
Viawealth, Llc reports 0.09% decrease in ownership of 6MK / Merck & Co., Inc.

On May 11, 2026 - Viawealth, Llc filed a 13F-HR form disclosing ownership of 3,423 shares of Merck & Co., Inc. (DE:6MK) valued at $356,677 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 3,426 shares of Merck & Co., Inc.. This represents a change in shares of -0.09% during the quarter. The current value of the position is $351,816 USD.

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)
2026-05-11 2026-03-31 13F MERCK COM 58933Y105 3,423 -3 -0.09 412 14.17 0.2292
2026-02-10 2025-12-31 13F MERCK COM 58933Y105 3,426 -1,079 -23.95 361 -4.76 0.2028
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 4,505 273 6.45 378 12.84 0.2065
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 4,232 -1,272 -23.11 335 -32.19 0.1980
2025-05-07 2025-03-31 13F MERCK COM 58933Y105 5,504 -45 -0.81 494 -10.51 0.3050
2025-02-11 2024-12-31 13F MERCK COM 58933Y105 5,549 291 5.53 552 -7.54 0.3333
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 5,258 52 1.00 597 -7.30 0.3480
2024-08-12 2024-06-30 13F MERCK COM 58933Y105 5,206 -25 -0.48 645 -6.67 0.3998
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 5,231 0 0.00 690 21.05 0.4316
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 5,231 0 0.00 570 5.95 0.3920
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 5,231 0 0.00 539 -10.78 0.3954
2023-08-10 2023-06-30 13F MERCK COM 58933Y105 5,231 -260 -4.74 604 3.25 0.4502
2023-05-12 2023-03-31 13F MERCK COM 58933Y105 5,491 0 0.00 584 -3.63 0.4628
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 5,491 5,491 606 0.4986
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.