Merck & Co., Inc.
DE ˙ XTRA ˙ US58933Y1055
102,78 € ↑2,84 (2,84%)
2026-06-04
DEL PRIS
SecurityDE:6MK / Merck & Co., Inc.
InstitutionStrong Tower Advisory Services
Latest Disclosed Ownership32,655 shares
Latest Disclosed Value $ 3,928,116
Strong Tower Advisory Services reports 0.77% increase in ownership of 6MK / Merck & Co., Inc.

On April 16, 2026 - Strong Tower Advisory Services filed a 13F-HR form disclosing ownership of 32,655 shares of Merck & Co., Inc. (DE:6MK) valued at $3,402,651 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 32,406 shares of Merck & Co., Inc.. This represents a change in shares of 0.77% during the quarter. The current value of the position is $3,356,281 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)
2026-04-16 2026-03-31 13F MERCK COM 58933Y105 32,655 249 0.77 3,928 15.16 0.7392
2026-01-23 2025-12-31 13F MERCK COM 58933Y105 32,406 2,247 7.45 3,411 34.77 0.6108
2025-10-15 2025-09-30 13F MERCK COM 58933Y105 30,159 568 1.92 2,531 8.07 0.4794
2025-07-24 2025-06-30 13F MERCK COM 58933Y105 29,591 1,589 5.67 2,342 3.04 0.4618
2025-04-09 2025-03-31 13F MERCK COM 58933Y105 28,002 9,598 52.15 2,273 24.21 0.5591
2025-01-16 2024-12-31 13F MERCK COM 58933Y105 18,404 2,251 13.94 1,831 -0.22 0.4777
2024-10-09 2024-09-30 13F MERCK COM 58933Y105 16,153 3,662 29.32 1,834 18.63 0.5113
2024-07-15 2024-06-30 13F MERCK COM 58933Y105 12,491 3,115 33.22 1,546 25.90 0.5075
2024-04-12 2024-03-31 13F MERCK COM 58933Y105 9,376 1,051 12.62 1,228 35.39 0.4933
2024-01-18 2023-12-31 13F MERCK COM 58933Y105 8,325 562 7.24 908 13.52 0.4018
2023-10-11 2023-09-30 13F MERCK COM 58933Y105 7,763 72 0.94 799 -9.92 0.3998
2023-07-14 2023-06-30 13F MERCK COM 58933Y105 7,691 293 3.96 888 12.71 0.4205
2023-04-14 2023-03-31 13F MERCK COM 58933Y105 7,398 29 0.39 787 -3.67 0.4148
2023-01-20 2022-12-31 13F MERCK COM 58933Y105 7,369 -553 -6.98 818 19.79 0.4907
2022-10-14 2022-09-30 13F MERCK COM 58933Y105 7,922 16 0.20 682 -5.41 0.4053
2022-08-10 2022-06-30 13F MERCK COM 58933Y105 7,906 -210 -2.59 721 8.26 0.3912
2022-04-14 2022-03-31 13F MERCK COM 58933Y105 8,116 1,841 29.34 666 38.46 0.3407
2022-01-18 2021-12-31 13F MERCK COM 58933Y105 6,275 1,308 26.33 481 22.70 0.2563
2021-10-29 2021-09-30 13F MERCK COM 58933Y105 4,967 4,967 392 0.2282
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.