Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAprio Wealth Management, LLC
Latest Disclosed Ownership35,731 shares
Latest Disclosed Value $ 4,298,090
Aprio Wealth Management, LLC reports 2.87% increase in ownership of MRK / Merck & Co., Inc.

On May 11, 2026 - Aprio Wealth Management, LLC filed a 13F-HR form disclosing ownership of 35,731 shares of Merck & Co., Inc. (MX:MRK) valued at $4,298,090 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 34,735 shares of Merck & Co., Inc.. This represents a change in shares of 2.87% 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)
2026-05-11 2026-03-31 13F MERCK COM 58933Y105 35,731 996 2.87 4,298 17.56 0.2347
2026-01-29 2025-12-31 13F MERCK COM 58933Y105 34,735 26,931 345.09 3,656 459.02 0.2098
2025-11-12 2025-09-30 13F MERCK COM 58933Y105 7,804 776 11.04 655 17.63 0.0651
2025-08-14 2025-06-30 13F MERCK COM 58933Y105 7,028 288 4.27 556 -7.95 0.0628
2025-05-15 2025-03-31 13F MERCK COM 58933Y105 6,740 -77 -1.13 605 -10.91 0.0758
2025-01-13 2024-12-31 13F MERCK COM 58933Y105 6,817 -287 -4.04 678 -15.88 0.0989
2024-10-08 2024-09-30 13F MERCK COM 58933Y105 7,104 -181 -2.48 807 -10.54 0.1290
2024-07-10 2024-06-30 13F MERCK COM 58933Y105 7,285 455 6.66 902 0.00 0.1643
2024-04-10 2024-03-31 13F MERCK COM 58933Y105 6,830 2,767 68.10 901 103.85 0.1766
2024-01-17 2023-12-31 13F MERCK COM 58933Y105 4,063 327 8.75 443 15.10 0.0989
2023-10-10 2023-09-30 13F MERCK COM 58933Y105 3,736 1,376 58.31 385 41.18 0.1057
2023-07-13 2023-06-30 13F MERCK COM 58933Y105 2,360 -377 -13.77 272 -6.53 0.0747
2023-04-14 2023-03-31 13F MERCK COM 58933Y105 2,737 2,737 291 0.0897
2021-01-11 2020-12-31 13F MERCK & CO. COM 58933Y105 0 -3,077 -100.00 0 -100.00
2020-10-14 2020-09-30 13F MERCK & CO. COM 58933Y105 3,077 0 0.00 255 7.14 0.1809
2020-07-20 2020-06-30 13F MERCK & CO. COM 58933Y105 3,077 0 0.00 238 0.42 0.2298
2020-04-16 2020-03-31 13F MERCK & CO. COM 58933Y105 3,077 0 0.00 237 -15.36 0.3005
2020-02-14 2019-12-31 13F MERCK COM 58933Y105 3,077 3,077 280 0.2064
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.