Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionV-Square Quantitative Management LLC
Latest Disclosed Ownership47,131 shares
Latest Disclosed Value $ 5,669,388
V-Square Quantitative Management LLC reports 4.03% increase in ownership of MRK / Merck & Co., Inc.

On April 27, 2026 - V-Square Quantitative Management LLC filed a 13F-HR form disclosing ownership of 47,131 shares of Merck & Co., Inc. (MX:MRK) valued at $5,669,388 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 45,307 shares of Merck & Co., Inc.. This represents a change in shares of 4.03% 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)
2026-04-27 2026-03-31 13F Merck A 58933Y105 47,131 1,824 4.03 5,669 18.87 0.5993
2026-01-22 2025-12-31 13F Merck A 58933Y105 45,307 -6,541 -12.62 4,769 9.61 0.4957
2025-11-12 2025-09-30 13F Merck A 58933Y105 51,848 4,698 9.96 4,352 16.59 0.7341
2025-07-17 2025-06-30 13F Merck A 58933Y105 47,150 -7,914 -14.37 3,732 -24.48 0.4998
2025-05-13 2025-03-31 13F Merck A 58933Y105 55,064 2,072 3.91 4,943 -6.24 0.7217
2025-01-30 2024-12-31 13F Merck A 58933Y105 52,992 838 1.61 5,272 -10.99 0.7475
2024-10-17 2024-09-30 13F Merck A 58933Y105 52,154 3,715 7.67 5,923 -1.23 0.8700
2024-07-16 2024-06-30 13F Merck A 58933Y105 48,439 -4,306 -8.16 5,997 -13.84 0.9719
2024-04-24 2024-03-31 13F Merck A 58933Y105 52,745 10,614 25.19 6,960 51.51 0.9737
2024-02-21 2023-12-31 13F Merck A 58933Y105 42,131 16,298 63.09 4,593 72.73 0.8121
2023-11-13 2023-09-30 13F Merck A 58933Y105 25,833 3,319 14.74 2,660 2.39 1.1704
2023-07-26 2023-06-30 13F Merck A 58933Y105 22,514 1,930 9.38 2,598 18.64 1.8950
2023-04-24 2023-03-31 13F Merck A 58933Y105 20,584 20,584 2,190 2.0189
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.