StoneX Group Inc.
DE ˙ DB ˙ US8618961085
96,52 € ↑3,94 (4,26%)
2026-06-05
DEL PRIS
SecurityDE:I4F / StoneX Group Inc.
InstitutionO'Brien Greene & Co. Inc
Latest Disclosed Ownership29,474 shares
Latest Disclosed Value $ 2,377,078
O'Brien Greene & Co. Inc reports 49.99% increase in ownership of I4F / StoneX Group Inc.

On May 6, 2026 - O'Brien Greene & Co. Inc filed a 13F-HR form disclosing ownership of 29,474 shares of StoneX Group Inc. (DE:I4F) valued at $2,004,232 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 19,650 shares of StoneX Group Inc.. This represents a change in shares of 49.99% during the quarter. The current value of the position is $2,844,830 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)
2026-05-06 2026-03-31 13F Stonex Group COM 861896108 29,474 9,824 49.99 2,377 27.18 0.3793
2026-02-05 2025-12-31 13F Stonex Group COM 861896108 19,650 0 0.00 1,869 -5.75 0.5549
2025-11-10 2025-09-30 13F Stonex Group COM 861896108 19,650 0 0.00 1,983 10.78 0.6099
2025-08-06 2025-06-30 13F Stonex Group COM 861896108 19,650 -300 -1.50 1,791 17.53 0.5858
2025-05-12 2025-03-31 13F Stonex Group COM 861896108 19,950 4,650 30.39 1,524 1.67 0.5112
2025-02-03 2024-12-31 13F Stonex Group COM 861896108 15,300 0 0.00 1,499 19.65 0.4867
2024-11-15 2024-09-30 13F Stonex Group COM 861896108 15,300 0 0.00 1,253 8.68 0.3901
2024-08-12 2024-06-30 13F Stonex Group COM 861896108 15,300 0 0.00 1,152 7.26 0.3649
2024-05-02 2024-03-31 13F Stonex Group COM 861896108 15,300 0 0.00 1,075 -4.87 0.3534
2024-02-02 2023-12-31 13F Stonex Group COM 861896108 15,300 5,100 50.00 1,130 14.27 0.3972
2023-11-08 2023-09-30 13F STONEX GROUP COM 861896108 10,200 0 0.00 989 0.3616
2023-08-15 2023-06-30 13F/A-1 STONEX GROUP COM 861896108 10,200 0 0.00 1 -100.00 0.2944
2023-07-20 2023-06-30 13F STONEX GROUP COM 861896108 30,600 20,400 3 0.2964
2023-05-03 2023-03-31 13F STONEX GROUP COM 861896108 10,200 0 0.00 1 0.3956
2023-02-02 2022-12-31 13F STONEX GROUP COM 861896108 10,200 -20,400 -66.67 1 -100.00 0.3686
2022-11-09 2022-09-30 13F STONEX GROUP COM 861896108 30,600 30,600 2,538 0.3363
2022-05-18 2022-03-31 13F STONEX GROUP COM 861896108 0 -12,800 -100.00 0 -100.00
2022-02-08 2021-12-31 13F STONEX GROUP COM 861896108 12,800 0 0.00 784 -7.11 0.2575
2021-11-12 2021-09-30 13F STONEX GROUP COM 861896108 12,800 0 0.00 844 8.62 0.3079
2021-08-09 2021-06-30 13F STONEX GROUP COM 861896108 12,800 1,000 8.47 777 0.78 0.2774
2021-05-12 2021-03-31 13F STONEX GROUP COM 861896108 11,800 2,500 26.88 771 43.31 0.3055
2021-02-04 2020-12-31 13F STONEX GROUP COM 861896108 9,300 9,300 538 0.2213
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.