Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

StoneX Group Inc.

SNEX · Nasdaq · CIK 0000913760 · Financial Services · Capital Markets

INSIDER SIGNAL

No active buy signal

1 qualifying P purchase group
in the current 180-day scoring window

90 Form 4 transaction lines observed in the same window
47 sales · 42 option, withholding, award, gift or other lines

Last qualifying purchase2026-08-10 · Thamodaran Dhamu R. · $161.2K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying1 qualifying line group(s)
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Smith Philip AndrewChief Executive Officer
▼○▼○▼○▼
Maurer Mark LowryOther
○▼○▼▼○▼
Rotsztain DiegoChief Governance/Legal Officer
▼▼○▼▼
FOWLER JOHN MOOREDirector
○○○○▼
Perkins Abigail HChief Information Officer
○▼▼
Dunaway William JChief Financial Officer
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Thamodaran Dhamu R. · $161.2K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-08-10–2026-08-10

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-08-10 · Thamodaran Dhamu R..

Recent Form 4 activity

2Purchases
60Sales
82Other Form 4 lines
92SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING47 sale line(s) · context only
OTHER42 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
4,810,362
Previous report
4,782,592
Avg daily volume
976,675
Days to cover
4.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-10Thamodaran Dhamu R.Purchase (P)Common Stock2,500USD 64.48USD 161,200SEC filing ↗
2025-12-16RADZIWILL JOHNPurchase (P)Common Stock1,000USD 97.25USD 97,250SEC filing ↗
2025-06-12RADZIWILL JOHNPurchase (P)Common Stock1,400USD 85.00USD 119,000SEC filing ↗
2023-06-09RADZIWILL JOHNPurchase (P)Common Stock962USD 86.90USD 83,598SEC filing ↗
2023-06-08RADZIWILL JOHNPurchase (P)Common Stock1,000USD 87.25USD 87,250SEC filing ↗
2023-05-09Stevens Glenn HenryPurchase (P)Common Stock3,000USD 84.18USD 252,540SEC filing ↗
2022-03-11Perkins Abigail HPurchase (P)Common Stock250USD 71.79USD 17,948SEC filing ↗
2022-03-11Perkins Abigail HPurchase (P)Common750USD 71.74USD 53,805SEC filing ↗
2022-03-09Stevens Glenn HenryPurchase (P)Common Stock2,500USD 70.83USD 177,075SEC filing ↗
2022-03-08Stevens Glenn HenryPurchase (P)Common Stock2,500USD 69.45USD 173,625SEC filing ↗
2022-03-08Rotsztain DiegoPurchase (P)Common Stock750USD 66.24USD 49,680SEC filing ↗
2021-12-22Perkins Abigail HPurchase (P)Common1,250USD 59.30USD 74,125SEC filing ↗
2021-12-20Stevens Glenn HenryPurchase (P)Common Stock1,500USD 57.48USD 86,220SEC filing ↗
2021-12-20Rotsztain DiegoPurchase (P)Common Stock877USD 57.00USD 49,989SEC filing ↗
2021-12-10Stevens Glenn HenryPurchase (P)Common Stock2,500USD 59.92USD 149,800SEC filing ↗

Form 4 evidence

144 transaction lines in the latest 365-day window; 668 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Smith Philip AndrewSale (S)Common Stock45,000USD 59.50USD 2,677,486SEC filing ↗
2026-10-15Smith Philip AndrewOption exercise / conversion (M)Common Stock45,000USD 8.90USD 400,500SEC filing ↗
2026-10-12Maurer Mark LowrySale (S)Common Stock52,953USD 60.35USD 3,195,650SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Smith Philip AndrewSale (S)Common Stock45,000USD 59.50USD 2,677,486SEC filing ↗
2026-10-15Smith Philip AndrewOption exercise / conversion (M)Common Stock45,000USD 8.90USD 400,500SEC filing ↗
2026-10-12Maurer Mark LowrySale (S)Common Stock52,953USD 60.35USD 3,195,650SEC filing ↗
2026-10-12Maurer Mark LowryOption exercise / conversion (M)Common Stock69,372USD 8.90USD 617,411SEC filing ↗
2026-10-12OCONNOR SEAN MICHAELSale (S)Common Stock76,148USD 60.35USD 4,595,852SEC filing ↗
2026-10-12OCONNOR SEAN MICHAELOption exercise / conversion (M)Common Stock157,500USD 8.90USD 1,401,750SEC filing ↗
2026-09-28Smith Philip AndrewSale (S)Common Stock56,250USD 65.69USD 3,695,062SEC filing ↗
2026-09-28Smith Philip AndrewOption exercise / conversion (M)Common Stock56,250USD 8.90USD 500,625SEC filing ↗
2026-09-16Rotsztain DiegoSale (S)Common Stock20,298USD 67.13USD 1,362,605SEC filing ↗
2026-09-15Maurer Mark LowrySale (S)Common Stock50,528USD 67.02USD 3,386,387SEC filing ↗
2026-09-14Rotsztain DiegoSale (S)Common Stock30,327USD 68.83USD 2,087,407SEC filing ↗
2026-09-14Rotsztain DiegoOption exercise / conversion (M)Common Stock50,625USD 12.26USD 620,662SEC filing ↗
2026-09-14Perkins Abigail HSale (S)Common Stock8,924USD 68.83USD 614,239SEC filing ↗
2026-09-14Maurer Mark LowrySale (S)Common Stock52,564USD 68.83USD 3,617,980SEC filing ↗
2026-09-14Maurer Mark LowryOption exercise / conversion (M)Common Stock69,372USD 8.90USD 617,411SEC filing ↗
2026-09-10Lyon Charles MGift (G)Common Stock500USD 0.00USD 0SEC filing ↗
2026-08-14Dunaway William JSale (S)Common Stock96,490USD 66.35USD 6,402,111SEC filing ↗
2026-08-14Dunaway William JOption exercise / conversion (M)Common Stock126,562USD 8.90USD 1,126,402SEC filing ↗
2026-08-10Thamodaran Dhamu R.Purchase (P)Common Stock2,500USD 64.48USD 161,200SEC filing ↗
2026-08-10Perkins Abigail HSale (S)Common Stock4,500USD 64.81USD 291,645SEC filing ↗
2026-08-10Perkins Abigail HOption exercise / conversion (M)Common Stock4,500USD 12.26USD 55,170SEC filing ↗
2026-08-07Maurer Mark LowrySale (S)Common Stock52,648USD 66.25USD 3,487,930SEC filing ↗
2026-08-07Maurer Mark LowryOption exercise / conversion (M)Common Stock69,372USD 8.90USD 617,411SEC filing ↗
2026-08-05FOWLER JOHN MOORESale (S)Common Stock1,575USD 75.41USD 118,771SEC filing ↗
2026-07-31RADZIWILL JOHNAward / grant (A)Restricted Shares of Common Stock219USD 0.00USD 0SEC filing ↗
2026-07-31FOWLER JOHN MOORETax withholding (F)Common Stock197USD 77.62USD 15,291SEC filing ↗
2026-07-31FOWLER JOHN MOOREAward / grant (A)Restricted Shares of Common Stock174USD 0.00USD 0SEC filing ↗
2026-07-31Cooper Diane L.Award / grant (A)Restricted Shares of Common Stock116USD 0.00USD 0SEC filing ↗
2026-07-31Thamodaran Dhamu R.Award / grant (A)Restricted Shares of Common Stock142USD 0.00USD 0SEC filing ↗
2026-07-31KASS STEVEN AAward / grant (A)Restricted Shares of Common Stock174USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerSNEX
CIK0000913760
SectorFinancial Services
IndustryCapital Markets Yahoo Finance
SEC SIC6200 Security & Commodity Brokers, Dealers, Exchanges & Services
ExchangeNasdaq

Data coverage

Local Form 4 history668 transaction lines from 2020-01-08 to 2026-10-15
26 P purchase lines · 255 S sale lines · 387 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.