Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAustin Private Wealth, LLC
Latest Disclosed Ownership10,286 shares
Latest Disclosed Value $ 1,082,734
Austin Private Wealth, LLC reports 2.66% decrease in ownership of MRK / Merck & Co., Inc.

On January 20, 2026 - Austin Private Wealth, LLC filed a 13F-HR form disclosing ownership of 10,286 shares of Merck & Co., Inc. (MX:MRK) valued at $1,082,734 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 17, 2025 disclosing 10,567 shares of Merck & Co., Inc.. This represents a change in shares of -2.66% 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)
2026-01-20 2025-12-31 13F MERCK COM 58933Y105 10,286 -281 -2.66 1,083 22.12 0.0805
2025-10-17 2025-09-30 13F MERCK COM 58933Y105 10,567 865 8.92 887 15.36 0.0673
2025-08-01 2025-06-30 13F MERCK COM 58933Y105 9,702 578 6.33 768 -6.11 0.0605
2025-05-12 2025-03-31 13F MERCK COM 58933Y105 9,124 115 1.28 819 -8.71 0.0732
2025-01-23 2024-12-31 13F MERCK COM 58933Y105 9,009 2,193 32.17 896 15.91 0.0830
2024-10-30 2024-09-30 13F MERCK COM 58933Y105 6,816 686 11.19 774 1.98 0.0745
2024-07-16 2024-06-30 13F/A-1 MERCK COM 58933Y105 6,130 316 5.44 759 0.40 0.0817
2024-07-12 2024-06-30 13F MERCK COM 58933Y105 6,130 316 759 0.0816
2024-04-12 2024-03-31 13F MERCK COM 58933Y105 5,814 234 4.19 755 24.18 0.0869
2024-01-18 2023-12-31 13F MERCK COM 58933Y105 5,580 339 6.47 608 12.80 0.0768
2023-11-08 2023-09-30 13F MERCK COM 58933Y105 5,241 -425 -7.50 540 -17.46 0.0781
2023-07-21 2023-06-30 13F MERCK COM 58933Y105 5,666 197 3.60 654 12.39 0.0945
2023-04-07 2023-03-31 13F MERCK COM 58933Y105 5,469 676 14.10 582 9.42 0.0928
2023-02-01 2022-12-31 13F MERCK COM 58933Y105 4,793 -246 -4.88 532 22.35 0.0932
2022-10-28 2022-09-30 13F MERCK COM 58933Y105 5,039 167 3.43 434 -2.25 0.0911
2022-07-29 2022-06-30 13F MERCK COM 58933Y105 4,872 -20 -0.41 444 10.72 0.0982
2022-05-06 2022-03-31 13F MERCK COM 58933Y105 4,892 96 2.00 401 8.97 0.0801
2022-02-02 2021-12-31 13F MERCK COM 58933Y105 4,796 522 12.21 368 14.64 0.0733
2021-11-12 2021-09-30 13F MERCK COM 58933Y105 4,274 200 4.91 321 1.26 0.0680
2021-08-10 2021-06-30 13F MERCK COM 58933Y105 4,074 -85 -2.04 317 -1.25 0.0732
2021-04-20 2021-03-31 13F MERCK & CO. COM 58933Y105 4,159 520 14.29 321 7.72 0.0844
2021-01-29 2020-12-31 13F MERCK & CO. COM 58933Y105 3,639 271 8.05 298 6.81 0.0862
2020-11-10 2020-09-30 13F MERCK & CO. COM 58933Y105 3,368 -114 -3.27 279 3.72 0.1043
2020-08-07 2020-06-30 13F MERCK & CO. COM 58933Y105 3,482 114 3.38 269 3.86 0.1169
2020-05-11 2020-03-31 13F MERCK & CO. COM 58933Y105 3,368 455 15.62 259 -2.26 0.1562
2020-02-12 2019-12-31 13F MERCK COM 58933Y105 2,913 2,913 265 0.1383
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.