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SNEX Insider Trading & Form 4 Activity

StoneX Group Inc.
Last filing: Oct 15, 2026·8 days ago
BEARISH · LAST 90 DAYS
7%
buyers
$161K
1 buy
$35.5M
13 sells
-$35.4M
net selling
8
insiders
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ACTIVE SELLING CLUSTER

4 insiders sold a combined $10.3M of SNEX between Aug 5, 2026 and Aug 14, 2026.

Fowler John Moore, Maurer Mark Lowry, Perkins Abigail H, Dunaway William J

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Maurer Mark Lowry
Insider
—
$13.7M
-$13.7M
Dunaway William J
Chief Financial Officer
—
$6.4M
-$6.4M
Smith Philip Andrew
Chief Executive Officer
—
$6.4M
-$6.4M
Oconnor Sean Michael
Executive Vice-Chairman-Board
—
$4.6M
-$4.6M
Rotsztain Diego
Chief Governance/Legal Officer
—
$3.5M
-$3.5M
Perkins Abigail H
Chief Information Officer
—
$906K
-$906K
Thamodaran Dhamu R.
Insider
$161K
—
$161K
Fowler John Moore
Insider
—
$119K
-$119K

Recent transactions

Every Form 4 transaction for SNEX, newest first.

EXERCISE
Smith Philip Andrew · Chief Executive Officer
Tx Oct 15·Filed Oct 15·EDGAR ↗
45,000 sh @ $8.90
$401K
SELL
Smith Philip Andrew · Chief Executive Officer
Tx Oct 15·Filed Oct 15·EDGAR ↗
45,000 sh @ $59.50
$2.7M
SELL
Maurer Mark Lowry · Insider
Tx Oct 12·Filed Oct 14·EDGAR ↗
52,953 sh @ $60.35
$3.2M
EXERCISE
Maurer Mark Lowry · Insider
Tx Oct 12·Filed Oct 14·EDGAR ↗
69,372 sh @ $8.90
$617K
EXERCISE
Oconnor Sean Michael · Executive Vice-Chairman-Board
Tx Oct 12·Filed Oct 13·EDGAR ↗
157,500 sh @ $8.90
$1.4M
SELL
Oconnor Sean Michael · Executive Vice-Chairman-Board
Tx Oct 12·Filed Oct 13·EDGAR ↗
76,148 sh @ $60.35
$4.6M
EXERCISE
Smith Philip Andrew · Chief Executive Officer
Tx Sep 28·Filed Sep 29·EDGAR ↗
56,250 sh @ $8.90
$501K
SELL
Smith Philip Andrew · Chief Executive Officer
Tx Sep 28·Filed Sep 29·EDGAR ↗
56,250 sh @ $65.69
$3.7M
SELL
Rotsztain Diego · Chief Governance/Legal Officer
Tx Sep 16·Filed Sep 16·EDGAR ↗
20,298 sh @ $67.13
$1.4M
SELL
Rotsztain Diego · Chief Governance/Legal Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
30,327 sh @ $68.83
$2.1M
EXERCISE
Rotsztain Diego · Chief Governance/Legal Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
50,625 sh @ $12.26
$621K
SELL
Perkins Abigail H · Chief Information Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
8,924 sh @ $68.83
$614K
SELL
Maurer Mark Lowry · Insider
Tx Sep 15·Filed Sep 15·EDGAR ↗
50,528 sh @ $67.02
$3.4M
SELL
Maurer Mark Lowry · Insider
Tx Sep 14·Filed Sep 15·EDGAR ↗
52,564 sh @ $68.83
$3.6M
EXERCISE
Maurer Mark Lowry · Insider
Tx Sep 14·Filed Sep 15·EDGAR ↗
69,372 sh @ $8.90
$617K
GIFT
Lyon Charles M · President
Tx Sep 10·Filed Sep 11·EDGAR ↗
500 sh
—
SELL
Dunaway William J · Chief Financial Officer
Tx Aug 14·Filed Aug 17·EDGAR ↗
96,490 sh @ $66.35
$6.4M
EXERCISE
Dunaway William J · Chief Financial Officer
Tx Aug 14·Filed Aug 17·EDGAR ↗
126,562 sh @ $8.90
$1.1M
EXERCISE
Perkins Abigail H · Chief Information Officer
Tx Aug 10·Filed Aug 11·EDGAR ↗
4,500 sh @ $12.26
$55K
BUY
Thamodaran Dhamu R. · Insider
Tx Aug 10·Filed Aug 11·EDGAR ↗
2,500 sh @ $64.48
$161K
SELL
Perkins Abigail H · Chief Information Officer
Tx Aug 10·Filed Aug 11·EDGAR ↗
4,500 sh @ $64.81
$292K
SELL
Maurer Mark Lowry · Insider
Tx Aug 7·Filed Aug 11·EDGAR ↗
52,648 sh @ $66.25
$3.5M
EXERCISE
Maurer Mark Lowry · Insider
Tx Aug 7·Filed Aug 11·EDGAR ↗
69,372 sh @ $8.90
$617K
SELL
Fowler John Moore · Insider
Tx Aug 5·Filed Aug 6·EDGAR ↗
1,575 sh @ $75.41
$119K
AWARD
Radziwill John · Chairman of the Board
Tx Jul 31·Filed Aug 5·EDGAR ↗
219 sh
—
TAX
Fowler John Moore · Insider
Tx Jul 31·Filed Aug 5·EDGAR ↗
197 sh @ $77.62
$15K
AWARD
Fowler John Moore · Insider
Tx Jul 31·Filed Aug 5·EDGAR ↗
174 sh
—
AWARD
Cooper Diane L. · Insider
Tx Jul 31·Filed Aug 5·EDGAR ↗
116 sh
—
AWARD
Kass Steven A · Insider
Tx Jul 31·Filed Aug 3·EDGAR ↗
174 sh
—
AWARD
Thamodaran Dhamu R. · Insider
Tx Jul 31·Filed Aug 3·EDGAR ↗
142 sh
—
AWARD
Fowler John Moore · Insider
Tx Jul 31·Filed Aug 3·EDGAR ↗
174 sh
—
TAX
Fowler John Moore · Insider
Tx Jul 31·Filed Aug 3·EDGAR ↗
230 sh @ $77.62
$18K
SELL
Rotsztain Diego · Chief Governance/Legal Officer
Tx Jul 24·Filed Jul 27·EDGAR ↗
20,630 sh @ $74.40
$1.5M
SELL
Smith Philip Andrew · Chief Executive Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
45,000 sh @ $74.32
$3.3M
EXERCISE
Maurer Mark Lowry · Insider
Tx Jul 22·Filed Jul 23·EDGAR ↗
69,372 sh @ $8.90
$617K
SELL
Maurer Mark Lowry · Insider
Tx Jul 22·Filed Jul 23·EDGAR ↗
52,376 sh @ $74.32
$3.9M
EXERCISE
Rotsztain Diego · Chief Governance/Legal Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
50,625 sh @ $12.26
$621K
SELL
Rotsztain Diego · Chief Governance/Legal Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
29,995 sh @ $74.32
$2.2M
EXERCISE
Dunaway William J · Chief Financial Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
126,563 sh @ $8.90
$1.1M
SELL
Dunaway William J · Chief Financial Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
95,970 sh @ $74.33
$7.1M
EXERCISE
Smith Philip Andrew · Chief Executive Officer
Tx Jul 22·Filed Jul 23·EDGAR ↗
45,000 sh @ $8.90
$401K
EXERCISE
Oconnor Sean Michael · Executive Vice-Chairman-Board
Tx Jul 22·Filed Jul 23·EDGAR ↗
225,000 sh @ $8.90
$2.0M
SELL
Oconnor Sean Michael · Executive Vice-Chairman-Board
Tx Jul 22·Filed Jul 23·EDGAR ↗
104,934 sh @ $74.33
$7.8M
SELL
Perkins Abigail H · Chief Information Officer
Tx Jul 20·Filed Jul 21·EDGAR ↗
8,919 sh @ $70.43
$628K
SELL
Bexiga Annabelle G · Insider
Tx Jul 15·Filed Jul 16·EDGAR ↗
1,500 sh @ $113.92
$171K
SELL
Smith Philip Andrew · Chief Executive Officer
Tx Jun 30·Filed Jul 1·EDGAR ↗
14,040 sh @ $118.67
$1.7M
SELL
Smith Philip Andrew · Chief Executive Officer
Tx Jun 30·Filed Jul 1·EDGAR ↗
37,500 sh @ $118.75
$4.5M
EXERCISE
Smith Philip Andrew · Chief Executive Officer
Tx Jun 30·Filed Jul 1·EDGAR ↗
37,500 sh @ $13.34
$500K
SELL10b5-1
Maurer Mark Lowry · Insider
Tx Jun 16·Filed Jun 17·EDGAR ↗
11,542 sh @ $133.63
$1.5M
SELL10b5-1
Maurer Mark Lowry · Insider
Tx Jun 15·Filed Jun 17·EDGAR ↗
34,706 sh @ $135.31
$4.7M

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About SNEX insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for SNEX from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying SNEX always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on StoneX Group Inc. (SNEX) when they form.

Where does SNEX insider trading data come from?

Every Form 4 filing for SNEX is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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