Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionSax Wealth Advisors, Llc
Latest Disclosed Ownership27,728 shares
Latest Disclosed Value $ 2,918,655
Sax Wealth Advisors, Llc reports 0.40% decrease in ownership of MRK / Merck & Co., Inc.

On April 8, 2026 - Sax Wealth Advisors, Llc filed a 13F-HR form disclosing ownership of 27,728 shares of Merck & Co., Inc. (MX:MRK) valued at $2,918,655 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 27,838 shares of Merck & Co., Inc.. This represents a change in shares of -0.40% 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)
2026-04-08 2026-03-31 13F MERCK COM 58933Y105 27,728 -110 -0.40 2,919 -0.41 0.1414
2026-01-12 2025-12-31 13F MERCK COM 58933Y105 27,838 -1,500 -5.11 2,930 19.01 0.1379
2025-10-20 2025-09-30 13F MERCK COM 58933Y105 29,338 12,712 76.46 2,462 87.08 0.1324
2025-07-23 2025-06-30 13F MERCK COM 58933Y105 16,626 8,227 97.95 1,316 74.77 0.0795
2025-05-14 2025-03-31 13F MERCK COM 58933Y105 8,399 993 13.41 754 2.31 0.0540
2025-01-15 2024-12-31 13F MERCK COM 58933Y105 7,406 1,023 16.03 737 1.66 0.0577
2024-10-17 2024-09-30 13F MERCK COM 58933Y105 6,383 707 12.46 725 3.13 0.0646
2024-07-12 2024-06-30 13F MERCK COM 58933Y105 5,676 1,200 26.81 703 18.98 0.0669
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 4,476 -159 -3.43 591 16.83 0.0690
2024-02-14 2023-12-31 13F MERCK COM 58933Y105 4,635 56 1.22 505 7.22 0.0824
2023-11-07 2023-09-30 13F MERCK COM 58933Y105 4,579 545 13.51 471 1.29 0.0929
2023-08-11 2023-06-30 13F MERCK COM 58933Y105 4,034 2 0.05 465 8.64 0.0928
2023-05-05 2023-03-31 13F MERCK COM 58933Y105 4,032 -734 -15.40 429 -18.94 0.0932
2023-02-06 2022-12-31 13F MERCK COM 58933Y105 4,766 251 5.56 529 35.73 0.1221
2022-11-08 2022-09-30 13F MERCK COM 58933Y105 4,515 -170 -3.63 389 -8.90 0.1001
2022-08-11 2022-06-30 13F MERCK COM 58933Y105 4,685 48 1.04 427 12.37 0.1086
2022-08-11 2022-03-31 13F/A-1 MERCK COM 58933Y105 4,637 -3,494 -42.97 380 -39.00 0.0919
2022-04-20 2022-03-31 13F MERCK COM 58933Y105 8,373 242 687 0.2314
2022-02-07 2021-12-31 13F MERCK COM 58933Y105 8,131 -550 -6.34 623 -4.45 0.1298
2021-12-10 2021-09-30 13F MERCK COM 58933Y105 8,681 3,705 74.46 652 68.48 0.1547
2021-08-12 2021-06-30 13F MERCK COM 58933Y105 4,976 7 0.14 387 1.04 0.1328
2021-05-14 2021-03-31 13F MERCK & CO. COM 58933Y105 4,969 1,217 32.44 383 24.76 0.1401
2021-02-16 2020-12-31 13F MERCK & CO. COM 58933Y105 3,752 3,752 307 0.1411
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.