SEC Form 4
StoneX Group Inc. (SNEX) insider trading
In the 12 months to Oct 26, 2026, 12 SNEX insiders reported open-market sales of $180.0M across 48 filings; 2 insiders bought $258.5K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $180.0M
- 48 filings · 12 insiders
- Open-market purchases
- $258.5K
- 2 filings
- Pre-arranged sales (10b5-1)
- 38 of 48
- $136.8M of $180.0M sold (76%)
Who traded SNEX, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
SNEX daily close from Oct 27, 2025 to Oct 26, 2026, between $37.20 and $92.67, last $56.42. 48 sale and 2 purchase filings by 14 insiders, marked at their filing dates. Sean Michael Oconnor, Executive Vice-Chairman-Board: sold $75.5M across 5 filings, first filed Feb 11, 2026, last Oct 13, 2026. Mark Lowry Maurer, Other: sold $34.1M across 8 filings, first filed Feb 11, 2026, last Oct 14, 2026. William J. Dunaway, Chief Financial Officer: sold $28.9M across 4 filings, first filed May 18, 2026, last Aug 17, 2026. Philip Andrew Smith, Chief Executive Officer: sold $19.6M across 6 filings, first filed Apr 14, 2026, last Oct 15, 2026. Diego Rotsztain, Chief Governance/Legal Officer: sold $11.6M across 6 filings, first filed Dec 19, 2025, last Sep 16, 2026. Charles M. Lyon, President: sold $4.9M across 2 filings, first filed Feb 10, 2026, last Jun 16, 2026. Dhamu R. Thamodaran, Director: bought $161.2K across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026. John Radziwill, Chairman of the Board: bought $97.3K across 1 filing, first filed Dec 18, 2025, last Dec 18, 2025. 6 others: sold $5.3M across 17 filings, first filed Nov 5, 2025, last Sep 16, 2026.
Largest mark · tap a row for others
Sean Michael Oconnor · Executive Vice-Chairman-Board
Sale $33,166,803
300,000 shares at $110.56 avg
Filed May 19, 2026 · traded May 15
Pre-arranged (10b5-1) · close on filing date $72.91
Sean Michael Oconnor · Executive Vice-Chairman-Board
Executive Vice-Chairman-Board
$75.5M soldMark Lowry Maurer · Other
Other
$34.1M soldWilliam J. Dunaway · Chief Financial Officer
Chief Financial Officer
$28.9M soldPhilip Andrew Smith · Chief Executive Officer
Chief Executive Officer
$19.6M soldDiego Rotsztain · Chief Governance/Legal Officer
Chief Governance/Legal Officer
$11.6M soldCharles M. Lyon · President
President
$4.9M soldDhamu R. Thamodaran · Director
Director
$161.2K boughtJohn Radziwill · Chairman of the Board
Chairman of the Board
$97.3K bought6 others
Combined, one mark per week
$5.3M soldOpen-market trades
50 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Sean Michael Oconnor | Executive Vice-Chairman-Board | $75.5M | — | 5 | 60% of sales | |
| Mark Lowry Maurer | Other | $34.1M | — | 8 | 82% of sales | |
| William J. Dunaway | Chief Financial Officer | $28.9M | — | 4 | 100% of sales | |
| Philip Andrew Smith | Chief Executive Officer | $19.6M | — | 6 | 100% of sales | |
| Diego Rotsztain | Chief Governance/Legal Officer | $11.6M | — | 6 | 100% of sales | |
| Charles M. Lyon | President | $4.9M | — | 2 | — | |
| Abigail H. Perkins | Chief Information Officer | $3.1M | — | 5 | 67% of sales | |
| Annabelle G. Bexiga | Director | $799.6K | — | 5 | 100% of sales | |
| John Moore Fowler | Director | $459.7K | — | 4 | 100% of sales | |
| Aaron Schroeder | Chief Accounting Officer | $429.3K | — | 1 | — | |
| Eric Parthemore | Director | $308.2K | — | 1 | — | |
| Steven A. Kass | Director | $246.5K | — | 1 | — | |
| Dhamu R. Thamodaran | Director | — | $161.2K | 1 | — | |
| John Radziwill | Chairman of the Board | — | $97.3K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 45,000 | $59.50 | $2.7M | 738,216 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 52,953 | $60.35 | $3.2M | 219,663 | |
traded | Sean Michael Oconnor Executive Vice-Chairman-Board | SalePre-arranged (10b5-1) | 76,148 | $60.35 | $4.6M | 1,831,799 | |
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 56,250 | $65.69 | $3.7M | 738,216 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 50,625 | $68.15 | $3.5M | 34,870 | |
traded | Abigail H. Perkins Chief Information Officer | SalePre-arranged (10b5-1) | 8,924 | $68.83 | $614.2K | 87,739 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 103,092 | $67.94 | $7.0M | 203,244 | |
traded | William J. Dunaway Chief Financial Officer | SalePre-arranged (10b5-1) | 96,490 | $66.35 | $6.4M | 502,203 | |
traded | Dhamu R. Thamodaran Director | Purchase | 2,500 | $64.48 | $161.2K | 75,760 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 52,648 | $66.25 | $3.5M | 236,964 | |
traded | Abigail H. Perkins Chief Information Officer | SalePre-arranged (10b5-1) | 4,500 | $64.81 | $291.7K | 96,663 | |
traded | John Moore Fowler Director | SalePre-arranged (10b5-1) | 1,575 | $75.41 | $118.8K | 255,271 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 20,630 | $74.40 | $1.5M | 34,870 | |
traded | Sean Michael Oconnor Executive Vice-Chairman-Board | SalePre-arranged (10b5-1) | 104,934 | $74.33 | $7.8M | 1,750,447 | |
traded | William J. Dunaway Chief Financial Officer | SalePre-arranged (10b5-1) | 95,970 | $74.33 | $7.1M | 472,131 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 29,995 | $74.32 | $2.2M | 55,500 | |
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 45,000 | $74.32 | $3.3M | 738,216 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 52,376 | $74.32 | $3.9M | 220,240 | |
traded | Abigail H. Perkins Chief Information Officer | SalePre-arranged (10b5-1) | 8,919 | $70.43 | $628.1K | 96,663 | |
traded | Annabelle G. Bexiga Director | SalePre-arranged (10b5-1) | 1,500 | $113.92 | $170.9K | 18,688 | |
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 51,540 | $118.72 | $6.1M | 492,144 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 46,248 | $134.89 | $6.2M | 135,496 | |
traded | Sean Michael Oconnor Executive Vice-Chairman-Board | Sale | 150,000 | $133.29 | $20.0M | 1,086,921 | |
traded | Annabelle G. Bexiga Director | SalePre-arranged (10b5-1) | 1,500 | $133.36 | $200.0K | 20,188 | |
traded | Charles M. Lyon President | Sale | 9,000 | $131.96 | $1.2M | 216,495 | |
traded | William J. Dunaway Chief Financial Officer | SalePre-arranged (10b5-1) | 63,602 | $131.16 | $8.3M | 294,359 | |
traded | Abigail H. Perkins Chief Information Officer | SalePre-arranged (10b5-1) | 4,312 | $118.51 | $511.0K | 72,388 | |
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 8,535 | $112.72 | $962.1K | 506,184 | |
traded | Mark Lowry Maurer Other | Sale | 11,398 | $112.25 | $1.3M | 135,496 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 33,750 | $112.01 | $3.8M | 23,247 | |
traded | Sean Michael Oconnor Executive Vice-Chairman-Board | SalePre-arranged (10b5-1) | 300,000 | $110.56 | $33.2M | 1,236,921 | |
traded | William J. Dunaway Chief Financial Officer | SalePre-arranged (10b5-1) | 64,017 | $110.46 | $7.1M | 273,586 | |
traded | Annabelle G. Bexiga Director | SalePre-arranged (10b5-1) | 1,500 | $112.82 | $169.2K | 21,688 | |
traded | Mark Lowry Maurer Other | SalePre-arranged (10b5-1) | 34,862 | $116.29 | $4.1M | 146,894 | |
traded | Aaron Schroeder Chief Accounting Officer | Sale | 3,500 | $122.65 | $429.3K | 51,481 | |
traded | Eric Parthemore Director | Sale | 2,500 | $123.30 | $308.2K | 43,874 | |
traded | Steven A. Kass Director | Sale | 2,000 | $123.26 | $246.5K | 53,266 | |
traded | John Moore Fowler Director | SalePre-arranged (10b5-1) | 1,050 | $106.25 | $111.6K | 171,246 | |
traded | Annabelle G. Bexiga Director | SalePre-arranged (10b5-1) | 1,500 | $101.91 | $152.9K | 23,188 | |
traded | Philip Andrew Smith Chief Executive Officer | SalePre-arranged (10b5-1) | 30,000 | $92.23 | $2.8M | 514,719 | |
traded | Annabelle G. Bexiga Director | SalePre-arranged (10b5-1) | 1,000 | $106.54 | $106.5K | 16,459 | |
traded | Abigail H. Perkins Chief Information Officer | Sale | 8,000 | $126.72 | $1.0M | 48,259 | |
traded | Sean Michael Oconnor Executive Vice-Chairman-Board | Sale | 80,000 | $124.75 | $10.0M | 854,127 | |
traded | Mark Lowry Maurer Other | Sale | 40,000 | $124.88 | $5.0M | 90,331 | |
traded | Charles M. Lyon President | Sale | 30,000 | $124.78 | $3.7M | 150,330 | |
traded | John Moore Fowler Director | SalePre-arranged (10b5-1) | 1,125 | $112.70 | $126.8K | 113,765 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 2,029 | $94.50 | $191.7K | 15,498 | |
traded | Diego Rotsztain Chief Governance/Legal Officer | SalePre-arranged (10b5-1) | 3,825 | $95.36 | $364.7K | 17,527 | |
traded | John Radziwill Chairman of the Board | Purchase | 1,000 | $97.25 | $97.3K | 101,596 | |
traded | John Moore Fowler Director | SalePre-arranged (10b5-1) | 1,125 | $91.20 | $102.6K | 114,769 |
GET /stocks/filings/vX/form-4?tickers=SNEX&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SNEX"
],
"issuer_cik": "0000913760",
"owner_cik": "0001569789",
"accession_number": "0001569789-26-000017",
"form_type": "4",
"filing_date": "2026-10-15",
"period_of_report": "2026-10-15",
"issuer_name": "StoneX Group Inc.",
"issuer_trading_symbol": "SNEX",
"owner_name": "Smith Philip Andrew",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Executive Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 45000,
"transaction_price_per_share": 59.4997,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 738216,
"transaction_value": 2677486.5,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported represents an average price. The Reporting Person will provide to the Commission, the issuer and any stockholder, upon request, full information regarding the number of shares sold at each separate price."
}
]
},
{
"tickers": [
"SNEX"
],
"issuer_cik": "0000913760",
"owner_cik": "0001662210",
"accession_number": "0001662210-26-000018",
"form_type": "4",
"filing_date": "2026-10-14",
"period_of_report": "2026-10-12",
"issuer_name": "StoneX Group Inc.",
"issuer_trading_symbol": "SNEX",
"owner_name": "Maurer Mark Lowry",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-12",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 52953,
"transaction_price_per_share": 60.3488,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 219663,
"transaction_value": 3195650.0064,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported represents an average price. The Reporting Person will provide to the Commission, the issuer and any stockholder, upon request, full information regarding the number of shares sold at each separate price."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 80 records
- Option exercises30 records
- Tax withholding8 records
- Grants and awards37 records
- Gifts5 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has StoneX Group Inc.'s CEO sold stock?
Yes. Philip Andrew Smith (CEO) sold 236,325 shares ($19.6M) between Apr 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan.
How current is SNEX’s insider data?
These are SNEX Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
Build with AI
Track SNEX insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SNEX every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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