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Compensation award — excluded from discretionary-purchase analysis.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell.
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Feb 26, 2026
Reporting period
Not applicable
Filed with the SEC
Apr 28, 2026
CEOGrant / award
Context
Classification
grant award
Code A — grant or award
Planned / mechanical clue
Footnote references tax withholding
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001104659-26-049608
Filed / recorded
Apr 28, 2026, 12:01 AM UTC
Added to OQRO
Oct 8, 2026, 2:51 AM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
ClearSign Technologies Corp
Issuer CIK
1434524
Ticker
CLIR
Reporting person
Colin James Deller
Relationship
Director, Officer
Officer title
Chief Executive Officer
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Feb 26, 2026
Transaction code
A
Shares / units
7,001
Price per share
$5.62
Acquired / disposed
Acquired (A)
Shares owned after
34,967
Ownership form
Direct
Amendment
Yes (Form 4/A)
Footnotes from the filing
On March 2, 2026, the reporting person filed a Form 4 reporting the receipt of 210,043 shares of the Issuer's common stock, on a pre-reverse stock split basis, as a one-time bonus grant for services as an executive officer for the year ended December 31, 2025 (the "Original Form 4"). This amendment to the Original Form 4 is being filed to correct (i) the number of shares received in connection with the reporting person's one-time bonus grant, (ii) the number of shares withheld for tax purposes, and (iii) the number of securities beneficially owned following such transactions. The number of shares withheld is based on the closing price of the Issuer's common stock on February 26, 2026, of $5.616, as adjusted for the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026.
Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026.
Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.
