Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionPlanning Center, Inc.
Latest Disclosed Ownership2,201 shares
Latest Disclosed Value $ 264,745
Planning Center, Inc. reports 3.24% increase in ownership of MRK / Merck & Co., Inc.

On April 28, 2026 - Planning Center, Inc. filed a 13F-HR form disclosing ownership of 2,201 shares of Merck & Co., Inc. (MX:MRK) valued at $264,745 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,132 shares of Merck & Co., Inc.. This represents a change in shares of 3.24% 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)
2026-04-28 2026-03-31 13F MERCK COM 58933Y105 2,201 69 3.24 265 17.86 0.0268
2026-02-02 2025-12-31 13F MERCK COM 58933Y105 2,132 2,132 224 0.0229
2025-04-18 2025-03-31 13F MERCK COM 58933Y105 0 -2,163 -100.00 0 -100.00
2025-01-23 2024-12-31 13F MERCK COM 58933Y105 2,163 0 0.00 215 -12.24 0.0273
2024-11-12 2024-09-30 13F MERCK COM 58933Y105 2,163 0 0.00 246 -8.24 0.0303
2024-08-08 2024-06-30 13F MERCK COM 58933Y105 2,163 0 0.00 268 -6.32 0.0350
2024-04-23 2024-03-31 13F MERCK COM 58933Y105 2,163 0 0.00 285 21.28 0.0621
2024-01-23 2023-12-31 13F MERCK COM 58933Y105 2,163 98 4.75 236 10.85 0.0547
2023-10-26 2023-09-30 13F MERCK COM 58933Y105 2,065 -139 -6.31 213 -16.54 0.0552
2023-07-20 2023-06-30 13F MERCK COM 58933Y105 2,204 2,204 254 0.0646
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.