Merck & Co., Inc.
MX ˙ BMV ˙ US58933Y1055
SecurityMX:MRK / Merck & Co., Inc.
InstitutionOld North State Trust, LLC
Latest Disclosed Ownership8,463 shares
Latest Disclosed Value $ 1,018
Old North State Trust, LLC reports 1.92% decrease in ownership of MRK / Merck & Co., Inc.

On May 13, 2026 - Old North State Trust, LLC filed a 13F-HR form disclosing ownership of 8,463 shares of Merck & Co., Inc. (MX:MRK) valued at $1,018 USD as of March 31, 2026. The entity filed a previous 13F-HR on March 24, 2026 disclosing 8,629 shares of Merck & Co., Inc..

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)
2026-05-13 2026-03-31 13F Merck COM 58933Y105 8,463 -166 -1.92 1 0.6045
2026-03-24 2025-12-31 13F Merck COM 58933Y105 8,629 -293 -3.28 1 0.5370
2025-11-20 2025-09-30 13F Merck COM 58933Y105 8,922 -636 -6.65 1 0.4562
2025-08-18 2025-06-30 13F Merck COM 58933Y105 9,558 -31 -0.32 1 0.5173
2025-06-23 2025-03-31 13F Merck COM 58933Y105 9,589 0 0.00 1 0.6070
2025-03-10 2024-12-31 13F Merck COM 58933Y105 9,589 689 7.74 1 -100.00 0.6070
2024-11-29 2024-09-30 13F Merck COM 58933Y105 8,900 246 2.84 1 0.00 0.8218
2024-08-19 2024-06-30 13F Merck COM 58933Y105 8,654 160 1.88 1 0.00 0.9248
2024-05-15 2024-03-31 13F Merck COM 58933Y105 8,494 -1,269 -13.00 1 0.00 0.9473
2023-11-15 2023-09-30 13F MERCK COM 58933Y105 9,763 -713 -6.81 1 0.00 0.7831
2023-08-22 2023-06-30 13F Merck COM 58933Y105 10,476 0 0.00 1 0.00 0.8935
2023-05-24 2023-03-31 13F/A-1 Merck COM 58933Y105 10,476 -6,155 -37.01 1 0.00 0.7718
2023-05-23 2023-03-31 13F MERCK COM 58933Y105 5,736 -10,895 1 0.7747
2023-02-14 2022-12-31 13F MERCK COM 58933Y105 16,631 6,909 71.07 2 -99.88 1.2128
2022-11-08 2022-09-30 13F Merck COM 58933Y105 9,722 9,712 97,120.00 837 -5.53 0.7232
2022-08-12 2022-06-30 13F MERCK COM 58933Y105 10 0 0.00 886 13.44 0.8101
2022-05-02 2022-03-31 13F MERCK COM 58933Y105 10 -7,470 -99.87 781 36.30 0.6253
2022-01-25 2021-12-31 13F MERCK COM 58933Y105 7,480 1,202 19.15 573 21.40 0.4114
2021-11-02 2021-09-30 13F Merck COM 58933Y105 6,278 0 0.00 472 -3.28 0.4208
2021-07-28 2021-06-30 13F Merck COM 58933Y105 6,278 149 2.43 488 3.39 0.3687
2021-05-12 2021-03-31 13F Merck COM 58933Y105 6,129 0 0.00 472 -5.79 0.3733
2021-02-08 2020-12-31 13F Merck COM 58933Y105 6,129 -264 -4.13 501 -5.47 0.3875
2020-10-13 2020-09-30 13F MERCK COM 58933Y105 6,393 -751 -10.51 530 -3.99 0.3568
2020-07-10 2020-06-30 13F MERCK & CO. COM 58933Y105 7,144 1 0.01 552 0.36 0.3522
2020-05-15 2020-03-31 13F MERCK & CO. COM 58933Y105 7,143 188 2.70 550 -13.11 0.3975
2020-02-21 2019-12-31 13F CIGNA CORP COM 58933Y105 6,955 -150 -2.11 633 5.85 0.3414
2019-10-09 2019-09-30 13F MERCK COM 58933Y105 7,105 -124 -1.72 598 -1.32 0.4054
2019-07-16 2019-06-30 13F MERCK COM 58933Y105 7,229 -6,209 -46.20 606 -45.75 0.4391
2019-04-10 2019-03-31 13F MERCK COM 58933Y105 13,438 7,663 132.69 1,117 153.29 0.7795
2019-02-08 2018-12-31 13F MERCK COM 58933Y105 5,775 -95 -1.62 441 5.76 0.4507
2019-02-08 2018-09-30 13F MERCK COM 58933Y105 5,870 5,870 417 0.3937
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.