Stonex Group Inc
Ownership
Ownership Structure
Who owns Stonex Group Inc (SNEX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.4% of the shares are freely tradable; institutional investors hold 85.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.13 | 11,012,451 | +5.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 3.10 | 3,740,986 | +0.0 | 03/31/2026 |
| T. Rowe Price Associates, Inc. | 2.88 | 3,471,998 | -18.8 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.51 | 3,024,896 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 2.46 | 2,962,664 | -12.8 | 06/30/2026 |
| State Street Corp | 2.31 | 2,782,201 | +1.4 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.37 | 6,474,430 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.82 | 3,406,603 | +0.3 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.32 | 2,799,185 | -0.6 | 08/31/2026 |
| Avantis US Small Cap Value ETF | 2.18 | 2,632,057 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Oconnor Sean Michael | Executive Vice-Chairman-Board | 1,750,447 | 115,704,547 $ | Jul 22, 2026 | direct |
| Smith Philip Andrew | Chief Executive Officer | 738,216 | 48,796,078 $ | Jul 22, 2026 | direct |
| Dunaway William J | Chief Financial Officer | 502,203 | 33,195,618 $ | Aug 14, 2026 | direct |
| Lyon Charles M | President | 324,242 | 21,432,396 $ | Sep 10, 2026 | direct |
| Fowler John Moore | Director | 255,271 | 16,873,413 $ | Aug 5, 2026 | direct |
| Radziwill John | Chairman of the Board | 231,850 | 15,325,285 $ | Jul 31, 2026 | direct |
| Maurer Mark Lowry | Chief Risk Officer | 203,244 | 13,434,428 $ | Sep 15, 2026 | direct |
| Perkins Abigail H | Chief Information Officer | 87,739 | 5,799,548 $ | Sep 14, 2026 | direct |
| Thamodaran Dhamu R. | Director | 81,408 | 5,381,069 $ | Jul 31, 2026 | both |
| Kass Steven A | Director | 80,073 | 5,292,825 $ | Jul 31, 2026 | direct |
| Cooper Diane L. | Director | 56,102 | 3,708,342 $ | Jul 31, 2026 | direct |
| Rotsztain Diego | Chief Governance/Legal Officer | 34,870 | 2,304,907 $ | Sep 16, 2026 | direct |
| Bexiga Annabelle G | Director | 28,032 | 1,852,915 $ | Jul 15, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 16, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Sell | 20,298 | 67.13 | 1,362,593 |
| Sep 15, 2026 | Maurer Mark Lowry | Chief Risk Officer | Sell | 50,528 | 67.02 | 3,386,629 |
| Sep 14, 2026 | Perkins Abigail H | Chief Information Officer | Sell | 8,924 | 68.83 | 614,218 |
| Sep 14, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Sell | 30,327 | 68.83 | 2,087,474 |
| Sep 14, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Other | 50,625 | 12.26 | 620,663 |
| Sep 14, 2026 | Maurer Mark Lowry | Chief Risk Officer | Sell | 52,564 | 68.83 | 3,617,864 |
| Sep 14, 2026 | Maurer Mark Lowry | Chief Risk Officer | Other | 69,372 | 8.90 | 617,411 |
| Sep 10, 2026 | Lyon Charles M | President | Other | 500 | 0.00 | – |
| Aug 14, 2026 | Dunaway William J | Chief Financial Officer | Sell | 96,490 | 66.35 | 6,401,803 |
| Aug 14, 2026 | Dunaway William J | Chief Financial Officer | Other | 126,562 | 8.90 | 1,126,402 |
| Aug 10, 2026 | Perkins Abigail H | Chief Information Officer | Sell | 4,500 | 64.81 | 291,662 |
| Aug 10, 2026 | Perkins Abigail H | Chief Information Officer | Other | 4,500 | 12.26 | 55,170 |
| Aug 10, 2026 | Thamodaran Dhamu R. | Director | Buy | 2,500 | 64.48 | 161,206 |
| Aug 7, 2026 | Maurer Mark Lowry | Chief Risk Officer | Sell | 52,648 | 66.25 | 3,487,935 |
| Aug 7, 2026 | Maurer Mark Lowry | Chief Risk Officer | Other | 69,372 | 8.90 | 617,411 |
| Aug 5, 2026 | Fowler John Moore | Director | Sell | 1,575 | 75.41 | 118,771 |
| Jul 31, 2026 | Cooper Diane L. | Director | Other | 116 | 0.00 | – |
| Jul 31, 2026 | Radziwill John | Chairman of the Board | Other | 219 | 0.00 | – |
| Jul 31, 2026 | Kass Steven A | Director | Other | 174 | 0.00 | – |
| Jul 31, 2026 | Thamodaran Dhamu R. | Director | Other | 142 | 0.00 | – |
| Jul 31, 2026 | Fowler John Moore | Director | Other | 230 | 77.62 | 17,853 |
| Jul 31, 2026 | Fowler John Moore | Director | Other | 174 | 0.00 | – |
| Jul 24, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Sell | 20,630 | 74.40 | 1,534,886 |
| Jul 22, 2026 | Maurer Mark Lowry | Chief Risk Officer | Sell | 52,376 | 74.32 | 3,892,679 |
| Jul 22, 2026 | Maurer Mark Lowry | Chief Risk Officer | Other | 69,372 | 8.90 | 617,411 |
| Jul 22, 2026 | Smith Philip Andrew | Chief Executive Officer | Sell | 45,000 | 74.32 | 3,344,481 |
| Jul 22, 2026 | Smith Philip Andrew | Chief Executive Officer | Other | 45,000 | 8.90 | 400,500 |
| Jul 22, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Sell | 29,995 | 74.32 | 2,229,282 |
| Jul 22, 2026 | Rotsztain Diego | Chief Governance/Legal Officer | Other | 50,625 | 12.26 | 620,663 |
| Jul 22, 2026 | Dunaway William J | Chief Financial Officer | Sell | 95,970 | 74.33 | 7,133,325 |
| Jul 22, 2026 | Dunaway William J | Chief Financial Officer | Other | 126,563 | 8.90 | 1,126,411 |
| Jul 22, 2026 | Oconnor Sean Michael | Executive Vice-Chairman-Board | Sell | 104,934 | 74.33 | 7,799,776 |
| Jul 22, 2026 | Oconnor Sean Michael | Executive Vice-Chairman-Board | Other | 225,000 | 8.90 | 2,002,500 |
| Jul 20, 2026 | Perkins Abigail H | Chief Information Officer | Sell | 8,919 | 70.43 | 628,147 |
| Jul 15, 2026 | Bexiga Annabelle G | Director | Sell | 1,500 | 113.92 | 170,880 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.