Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionLatitude Advisors, LLC
Latest Disclosed Ownership2,314 shares
Latest Disclosed Value $ 278,365
Latitude Advisors, LLC reports 0.09% decrease in ownership of MRK / Merck & Co., Inc.

On April 27, 2026 - Latitude Advisors, LLC filed a 13F-HR form disclosing ownership of 2,314 shares of Merck & Co., Inc. (MX:MRK) valued at $278,365 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 2,316 shares of Merck & Co., Inc.. This represents a change in shares of -0.09% 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 COM 58933Y105 2,314 -2 -0.09 278 14.40 0.1275
2026-01-27 2025-12-31 13F MERCK COM 58933Y105 2,316 2,316 244 0.1073
2025-10-31 2025-09-30 13F MERCK COM 58933Y105 0 -4,346 -100.00 0 -100.00
2025-07-29 2025-06-30 13F MERCK COM 58933Y105 4,346 -68 -1.54 344 -13.13 0.1731
2025-04-28 2025-03-31 13F MERCK COM 58933Y105 4,414 486 12.37 396 1.54 0.2303
2025-01-29 2024-12-31 13F MERCK COM 58933Y105 3,928 394 11.15 391 -2.74 0.2202
2024-10-29 2024-09-30 13F MERCK COM 58933Y105 3,534 29 0.83 401 -7.39 0.2271
2024-07-26 2024-06-30 13F MERCK COM 58933Y105 3,505 -702 -16.69 434 -21.98 0.2650
2024-04-25 2024-03-31 13F MERCK COM 58933Y105 4,207 -1,246 -22.85 555 -6.57 0.3470
2024-01-30 2023-12-31 13F MERCK COM 58933Y105 5,453 40 0.74 594 6.64 0.4175
2023-11-03 2023-09-30 13F MERCK COM 58933Y105 5,413 -60 -1.10 557 -11.73 0.3991
2023-07-26 2023-06-30 13F MERCK COM 58933Y105 5,473 472 9.44 631 18.61 0.4386
2023-04-27 2023-03-31 13F MERCK COM 58933Y105 5,001 83 1.69 532 -2.39 0.3840
2023-01-27 2022-12-31 13F MERCK COM 58933Y105 4,918 -469 -8.71 546 17.46 0.4091
2022-11-01 2022-09-30 13F MERCK COM 58933Y105 5,387 443 8.96 464 3.11 0.3833
2022-07-28 2022-06-30 13F MERCK COM 58933Y105 4,944 -9,337 -65.38 450 -61.60 0.4134
2022-04-29 2022-03-31 13F MERCK COM 58933Y105 14,281 1,055 7.98 1,172 15.58 0.2639
2022-01-18 2021-12-31 13F MERCK COM 58933Y105 13,226 1,109 9.15 1,014 11.43 0.2832
2021-10-14 2021-09-30 13F MERCK COM 58933Y105 12,117 6,501 115.76 910 108.24 0.2881
2021-07-20 2021-06-30 13F MERCK COM 58933Y105 5,616 -135 -2.35 437 -1.35 0.3240
2021-04-14 2021-03-31 13F MERCK & CO. COM 58933Y105 5,751 -64 -1.10 443 -6.93 0.3629
2021-02-04 2020-12-31 13F MERCK & CO. COM 58933Y105 5,815 5,815 476 0.4217
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.