Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionUllmann Financial Group, Inc.
Latest Disclosed Ownership4,760 shares
Latest Disclosed Value $ 572,539
Ullmann Financial Group, Inc. reports 29.38% increase in ownership of MRK / Merck & Co., Inc.

On April 13, 2026 - Ullmann Financial Group, Inc. filed a 13F-HR form disclosing ownership of 4,760 shares of Merck & Co., Inc. (MX:MRK) valued at $572,539 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,679 shares of Merck & Co., Inc.. This represents a change in shares of 29.38% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-13 2026-03-31 13F MERCK COM 58933Y105 4,760 1,081 29.38 573 81.01 0.0594
2026-02-12 2025-12-31 13F MERCK COM 58933Y105 3,679 168 4.78 316 7.48 0.0329
2025-10-17 2025-09-30 13F MERCK COM 58933Y105 3,511 -95 -2.63 295 3.16 0.0322
2025-07-11 2025-06-30 13F MERCK COM 58933Y105 3,606 -95 -2.57 285 -14.16 0.0337
2025-04-11 2025-03-31 13F MERCK COM 58933Y105 3,701 1,021 38.10 332 24.81 0.0441
2025-01-15 2024-12-31 13F MERCK COM 58933Y105 2,680 -360 -11.84 267 -22.90 0.0344
2024-10-15 2024-09-30 13F MERCK COM 58933Y105 3,040 407 15.46 345 6.15 0.0446
2024-08-08 2024-06-30 13F MERCK COM 58933Y105 2,633 385 17.13 326 9.80 0.0465
2024-05-10 2024-03-31 13F MERCK COM 58933Y105 2,248 199 9.71 297 32.74 0.0441
2024-01-11 2023-12-31 13F MERCK COM 58933Y105 2,049 2,049 223 0.0365
2017-11-14 2017-09-30 13F Merck COM 58933Y105 0 -248 -100.00 0 -100.00
2017-07-24 2017-06-30 13F Merck COM 58933Y105 248 0 0.00 15 0.00 0.0108
2017-05-26 2017-03-31 13F Merck COM 58933Y105 248 248 15 0.0124
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.