Company profile
ClearSign Technologies Corp Insider Trading
CLIREvery SEC Form 4 insider trading filing for ClearSign Technologies Corp (CLIR) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Industrial Instruments For Measurement, Display, and Control
- CIK
- 0001434524
- Filings
- 70
- Insiders
- 14
- Last filing
- 2026-07-22
Activity summary
No insider transactions in the last 30 days. The most recent was on July 22, 2026, when Pasquesi John M bought 500,000 shares. 70 filings from 14 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. ClearSign Technologies Corp insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $4.3M.
90 day insight
Over the last 90 days, ClearSign Technologies Corp insiders bought $1.8M across 5 transactions with no open-market sales.
- Most active insider: Silva Gil Todd with 2 transactions totaling $0.
- Largest single purchase: $1.8M by Pasquesi John M on Jul 22, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 22, 2026 | Pasquesi John M | CLIR | Purchase | 500,000 | $3.54 | $1.77M |
| Jun 30, 2026 | Basenese Lou | CLIR | Award | 4,595 | — | — |
| Jun 30, 2026 | Digiandomenico Anthony | CLIR | Award | 4,595 | — | — |
| Jun 30, 2026 | Silva Gil Todd | CLIR | Award | 4,595 | — | — |
| Jun 30, 2026 | Silva Gil Todd | CLIR | Award | 4,087 | — | — |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of ClearSign Technologies Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →