머크 앤 컴퍼니(Merck & Co., Inc.)
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionAlaethes Wealth LLC
Latest Disclosed Ownership3,107 shares
Latest Disclosed Value $ 376,291
Alaethes Wealth LLC reports 3.57% increase in ownership of MRK / Merck & Co., Inc.

On May 12, 2026 - Alaethes Wealth LLC filed a 13F-HR form disclosing ownership of 3,107 shares of Merck & Co., Inc. (MX:MRK) valued at $376,291 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,000 shares of Merck & Co., Inc.. This represents a change in shares of 3.57% 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)
2026-05-12 2026-03-31 13F MERCK COM 58933Y105 3,107 107 3.57 376 18.24 0.1071
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 3,000 274 10.05 318 38.86 0.0896
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 2,726 2,726 230 0.0652
2025-05-19 2025-03-31 13F MERCK COM 58933Y105 0 -2,210 -100.00 0 -100.00
2025-02-14 2024-12-31 13F MERCK COM 58933Y105 2,210 -13,744 -86.15 222 -87.88 0.0792
2024-11-14 2024-09-30 13F MERCK COM 58933Y105 15,954 1,244 8.46 1,824 -0.44 0.6730
2024-08-13 2024-06-30 13F MERCK COM 58933Y105 14,710 -2,728 -15.64 1,832 -20.76 0.7574
2024-05-15 2024-03-31 13F MERCK COM 58933Y105 17,438 1,269 7.85 2,313 31.21 1.0107
2024-02-12 2023-12-31 13F MERCK COM 58933Y105 16,169 8 0.05 1,763 5.95 0.8343
2023-11-13 2023-09-30 13F MERCK COM 58933Y105 16,161 -359 -2.17 1,664 -12.75 0.9115
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 16,520 -1,075 -6.11 1,906 1.87 1.0462
2023-05-16 2023-03-31 13F MERCK COM 58933Y105 17,595 1,068 6.46 1,872 2.07 1.0975
2023-02-13 2022-12-31 13F MERCK COM 58933Y105 16,527 1,178 7.67 1,834 38.65 1.2602
2022-11-14 2022-09-30 13F MERCK COM 58933Y105 15,349 575 3.89 1,322 -1.86 0.9719
2022-08-16 2022-06-30 13F MERCK COM 58933Y105 14,774 -197 -1.32 1,347 9.69 0.9987
2022-05-16 2022-03-31 13F MERCK COM 58933Y105 14,971 351 2.40 1,228 9.64 0.7804
2022-02-15 2021-12-31 13F MERCK COM 58933Y105 14,620 1,497 11.41 1,120 13.59 0.7054
2021-11-16 2021-09-30 13F MERCK COM 58933Y105 13,123 1,635 14.23 986 10.41 0.7171
2021-08-13 2021-06-30 13F MERCK COM 58933Y105 11,488 51 0.45 893 1.25 0.6892
2021-05-04 2021-03-31 13F MERCK & CO. COM 58933Y105 11,437 11,437 882 0.8172
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.