Merck & Co., Inc.
US ˙ NYSE ˙ US58933Y1055

SecurityMRK / Merck & Co., Inc.
InstitutionChange Path, LLC
Latest Disclosed Ownership44,687 shares
Latest Disclosed Value $ 5,375,418
Change Path, LLC reports 2.97% decrease in ownership of MRK / Merck & Co., Inc.

On May 15, 2026 - Change Path, LLC filed a 13F-HR form disclosing ownership of 44,687 shares of Merck & Co., Inc. (US:MRK) valued at $5,375,399 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 46,056 shares of Merck & Co., Inc.. This represents a change in shares of -2.97% during the quarter. The current value of the position is $5,125,599 USD.

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)
2026-05-15 2026-03-31 13F MERCK COM 58933Y105 44,687 -1,369 -2.97 5,375 10.89 0.1145
2026-02-13 2025-12-31 13F MERCK COM 58933Y105 46,056 -1,559 -3.27 4,848 21.30 0.1175
2025-11-13 2025-09-30 13F MERCK COM 58933Y105 47,615 6,484 15.76 3,996 22.76 0.0976
2025-08-12 2025-06-30 13F MERCK COM 58933Y105 41,131 2,680 6.97 3,256 -5.68 0.0853
2025-05-14 2025-03-31 13F MERCK COM 58933Y105 38,451 7,115 22.71 3,451 10.72 0.1032
2025-02-13 2024-12-31 13F MERCK COM 58933Y105 31,336 6,886 28.16 3,117 12.28 0.0955
2024-11-13 2024-09-30 13F MERCK COM 58933Y105 24,450 13,324 119.76 2,777 277,500.00 0.0944
2024-08-14 2024-06-30 13F MERCK COM 58933Y105 11,126 -5,429 -32.79 1 -50.00 0.0698
2024-05-14 2024-03-31 13F MERCK COM 58933Y105 16,555 7,765 88.34 2 0.0870
2024-02-09 2023-12-31 13F MERCK COM 58933Y105 8,790 -735 -7.72 1 0.0613
2023-10-17 2023-09-30 13F MERCK COM 58933Y105 9,525 -30,406 -76.15 1 -100.00 0.0706
2023-08-16 2023-06-30 13F/A-1 MERCK COM 58933Y105 39,931 464 1.18 5 0.00 0.2149
2023-08-14 2023-06-30 13F MERCK COM 58933Y105 29,690 -9,777 3 0.1710
2023-05-15 2023-03-31 13F MERCK COM 58933Y105 39,467 10,317 35.39 4 -99.88 0.2072
2023-02-15 2022-12-31 13F MERCK COM 58933Y105 29,150 2,659 10.04 3,234 41.78 0.1781
2022-11-15 2022-09-30 13F MERCK COM 58933Y105 26,491 10,418 64.82 2,281 55.70 0.1371
2022-08-12 2022-06-30 13F MERCK COM 58933Y105 16,073 -121 -0.75 1,465 10.23 0.0793
2022-05-13 2022-03-31 13F MERCK COM 58933Y105 16,194 -654 -3.88 1,329 2.94 0.0689
2022-02-15 2021-12-31 13F MERCK COM 58933Y105 16,848 2,141 14.56 1,291 16.83 0.0637
2021-11-16 2021-09-30 13F MERCK COM 58933Y105 14,707 -2,076 -12.37 1,105 -15.33 0.0649
2021-08-13 2021-06-30 13F MERCK COM 58933Y105 16,783 2,144 14.65 1,305 15.59 0.0806
2021-05-17 2021-03-31 13F MERCK & CO. COM 58933Y105 14,639 626 4.47 1,129 -1.57 0.0854
2021-02-12 2020-12-31 13F MERCK & CO. COM 58933Y105 14,013 14,013 1,147 0.0950
2019-08-14 2019-06-30 13F MERCK COM 58933Y105 0 -2,408 -100.00 0 -100.00
2019-05-15 2019-03-31 13F MERCK COM 58933Y105 2,408 2,408 200 0.0522
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.