Insider profile
Stephen William McCahon Insider Trading
This page tracks every SEC Form 4 filing since April 2023 by Stephen William McCahon, Chief Science Officer: 8 transactions in total, none of them an open-market purchase, and 6 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.
- Role
- Chief Science Officer
- CIK
- 0001284227
- Companies traded
- 1
- Total filings
- 8
- First filing
- 2023-12-19
- Last filing
- 2026-01-20
Files as MCCAHON STEPHEN WILLIAM · SEC EDGAR ↗
Activity summary
The most recent open-market transaction was a sale of 10,000 shares ($18K) on January 20, 2026. It was filed under a 10b5-1 plan, scheduled in advance rather than decided on the day.
Quarterly balance
Buy and sell value by quarter, Q3 25 to Q1 26. Stephen William McCahon sold in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $50K.
Insider insight
Stephen William McCahon trades most actively in AERG, accounting for 2 of the 8 filings on record.
Track record
Most active in
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jan 20, 2026 | Stephen William McCahon | AERG | Sale10b5 | 10,000 | $1.80 | $18K |
| Dec 22, 2025 | Stephen William McCahon | AERG | Sale10b5 | 10,000 | $1.86 | $19K |
| Nov 21, 2025 | Stephen William McCahon | AERG | Sale | 8,900 | $1.51 | $13K |
| Nov 19, 2025 | Stephen William McCahon | AERG | Sale | 1,100 | $1.50 | $2K |
| Oct 20, 2025 | Stephen William McCahon | AERG | Sale10b5 | 10,000 | $1.65 | $17K |
3 more transactions hidden
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curl "https://api.form4api.com/v1/insiders/0001284227/transactions" \
-H "X-Api-Key: $KEY"Companies traded
By number of filings.
Filing cadence
Filings per quarter, this window.
Busiest: Q4 25 (4 filings)
Quietest: Q1 24 (0 filings)
Reading an insider's Form 4 history
Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.
The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.