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CIK 0001434524 · Non-accelerated filer<br>Smaller reporting company

ClearSign Technologies Corp

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Ticker
CLIR
Exchange
Nasdaq
Industry
Industrial Instruments For Measurement, Display, and Control
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
(918) 500-7312
Business address
8023 E. 63RD PLACE, SUITE 101, TULSA, OK, 74133
Former names
CLEARSIGN COMBUSTION CORP
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-07-22 PASQUESI JOHN M 10% owner Purchase +500,000 $3.54 $1.8M 1,343,477
2026-04-23 Silva Gil Todd Director Purchase +1,000 $5.32 $5K 5,000
2026-04-23 Silva Gil Todd Director Purchase +1,000 $5.25 $5K 6,000
2026-03-17 Silva Gil Todd Director Purchase +2,000 $4.20 $8K 4,000
2026-03-16 Silva Gil Todd Director Purchase +2,000 $4.36 $9K 2,000
2024-06-24 HOFFMAN Robert Thurston Sr 10% owner Purchase +3,350,000 $0.91 $3.0M 9,539,857
2022-07-08 HOFFMAN Robert Thurston Sr Director Purchase +1,591,594 $1.11 $1.8M 7,583,234
2022-07-08 HOFFMAN Robert Thurston Sr Director Purchase +0 110,519
2022-07-08 HOFFMAN Robert Thurston Sr Director Purchase +0 13,153
2022-06-14 Pate Bruce Alan Director Purchase +45,000 $1.12 $50K 150,000
2020-08-24 Meline Susanne Director Purchase +5,000 $2.00 $10K 54,249
2020-08-24 Pate Bruce Alan Director Purchase +35,000 $2.00 $70K 105,000
2019-05-17 Pate Bruce Alan Director Purchase +100,000 $1.01 $101K 100,000
2019-03-19 Kendrick Donald W Chief Technology Officer Purchase +5,000 $0.94 $5K 44,233
2019-03-19 Kendrick Donald W Chief Technology Officer Purchase +5,000 $0.94 $5K 30,600
2018-12-18 Kendrick Donald W Chief Technology Officer Purchase +10,000 $1.14 $11K 39,233
2018-02-27 PIRNAT STEPHEN E Chief Executive Officer Purchase +10,000 $2.25 $23K 113,947
2018-02-27 Meline Susanne Director Purchase +22,222 $2.25 $50K 22,222
2018-02-27 Fike Brian Grant Interim CFO Purchase +1,000 $2.25 $2K 1,000
2018-02-27 BELL LON E Director Purchase +111,000 $2.25 $250K 354,472

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