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Form 8-K ClearSign Technologies For: May 28

Mon, 01 Jun 2026 08:30:00 -0400

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Form 8-K ClearSign Technologies For: May 28

Mon, 01 Jun 2026 08:30:00 -0400

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Form 424B5 ClearSign Technologies

Mon, 01 Jun 2026 08:25:00 -0400

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Form 424B5 ClearSign Technologies

Mon, 01 Jun 2026 08:25:00 -0400

si-local-file:///var/storage/secattach/20260601/26579766.html

ClearSign Technologies prices $3.4 million stock offering at $4.33 per share

Fri, 29 May 2026 08:30:14 -0400

ClearSign Technologies Corporation (NASDAQ: CLIR) announced the pricing of an underwritten public offering of 777,780 shares of common stock at $4.33 per share, generating gross proceeds of approximately $3.4 million.

The combustion and sensing technology company granted the underwriter a 30-day option to purchase up to an additional 15% of the offered shares to cover over-allotments. If exercised in full, the option would increase gross proceeds to approximately $3.9 million.

The offering is expected to close on or about June 1, 2026, subject to customary closing conditions. ClearSign stated it intends to use net proceeds for working capital, research and development, marketing

ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock

Fri, 29 May 2026 08:30:00 -0400

TULSA, OK / ACCESS Newswire / May 29, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces the pricing of an underwritten public offering with primarily existing stockholders of 777,780 shares of its common stock (the "Public Offering") at a price to the public of $4.33 per share, for gross proceeds of $3,367,787. The Company has also granted to the underwriter a 30-day

ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock

Fri, 29 May 2026 08:30:00 -0400

Form 424B5 ClearSign Technologies

Thu, 28 May 2026 16:32:00 -0400

si-local-file:///var/storage/secattach/20260528/26567982.html

Form 424B5 ClearSign Technologies

Thu, 28 May 2026 16:32:00 -0400

si-local-file:///var/storage/secattach/20260528/26567982.html

ClearSign Technologies announces proposed public offering of common stock

Thu, 28 May 2026 16:25:11 -0400

ClearSign Technologies Corporation (NASDAQ: CLIR) announced a proposed underwritten public offering of its common stock, according to a company statement. The Tulsa-based company said all shares in the offering will be sold by ClearSign itself.

The company plans to grant the underwriter a 30-day option to purchase up to an additional 15% of the offered shares at the public offering price, minus underwriting discounts. Newbridge Securities Corporation will serve as the sole book-running manager for the offering.

ClearSign stated it intends to use net proceeds for working capital, research and development, marketing and sales, and general corporate purposes. The company noted that

ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock

Thu, 28 May 2026 16:25:00 -0400

TULSA, OK / ACCESS Newswire / May 28, 2026 / ClearSign Technologies Corporation (NASDAQ:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it is proposing to sell shares of its common stock in an underwritten public offering (the "Public Offering"). All of the shares in the Public Offering are to be sold by ClearSign. ClearSign intends to grant the underwriter a 30-day option to purchase up to

ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock

Thu, 28 May 2026 16:25:00 -0400

Form 8-K ClearSign Technologies For: May 26

Thu, 28 May 2026 16:19:00 -0400

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Form 8-K ClearSign Technologies For: May 26

Thu, 28 May 2026 16:19:00 -0400

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ClearSign Technologies (CLIR) Reports Q1 Loss of $0.39

Wed, 27 May 2026 03:31:02 -0400

ClearSign Technologies (NASDAQ: CLIR) reported Q1 EPS of ($0.39). Revenue for the quarter came in at $200 thousand.

For earnings history and earnings-related data on ClearSign Technologies (CLIR) click here.

Form 8-K ClearSign Technologies For: May 20

Thu, 21 May 2026 16:31:00 -0400

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Form 8-K ClearSign Technologies For: May 20

Thu, 21 May 2026 16:31:00 -0400

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ClearSign Technologies Corporation Provides First Quarter 2026 Update

Wed, 20 May 2026 16:05:00 -0400

TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today provides an update on operations for the quarter ended March 31, 2026.

"We made notable progress at the start of the year," said Jim Deller, Ph.D., Chief Executive Officer of ClearSign. "We expanded the scope of a flare order to include a full system and secured a fifth

ClearSign Technologies Corporation Provides First Quarter 2026 Update

Wed, 20 May 2026 16:05:00 -0400

"We made notable progress at the start of the year," said Jim Deller, Ph.D., Chief Executive Officer of ClearSign. "We expanded the scope of a flare order to include a full system and secured a fifth

ClearSign Receives "M1" Series Burner Order for Midstream Heater in West Texas

Wed, 20 May 2026 08:30:00 -0400

Burner Sold by Heater Manufacturer Tulsa Heaters Midstream

TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it has received a purchase order for a ClearSign M1 burner, one of its "M" Series process burners, from heater manufacturer Tulsa Heaters Midstream ("THM").

"We are happy to see continued interest in this midstream product line," said

ClearSign Receives "M1" Series Burner Order for Midstream Heater in West Texas

Wed, 20 May 2026 08:30:00 -0400

Burner Sold by Heater Manufacturer Tulsa Heaters Midstream

TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it has received a purchase order for a ClearSign M1 burner, one of its "M" Series process burners, from heater manufacturer Tulsa Heaters Midstream ("THM").

"We are happy to see continued interest in this midstream product line," said

Form 10-Q ClearSign Technologies For: Mar 31

Fri, 15 May 2026 09:21:00 -0400

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Form 10-Q ClearSign Technologies For: Mar 31

Fri, 15 May 2026 09:21:00 -0400

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ClearSign gets order for second phase of California refinery project

Thu, 14 May 2026 08:35:25 -0400

ClearSign Technologies Corporation (NASDAQ: CLIR) received a purchase order for physical testing and demonstration of burners in the second phase of a 32-burner retrofit project at a California refinery, the company announced May 14.

The project involves installing ClearSign Core burners across two heaters and represents a new flat flame application of the company's technology. Testing will be conducted at Zeeco's full-scale test facility.

"This is particularly exciting as these burners will be another configuration of our new Core 2 technology, a flat flame application, which will further expand our addressable market to include new refining heater types," said Chief Executive Officer

ClearSign Receives Order for Next Phase of 32-Burner Project for California Refinery

Thu, 14 May 2026 08:30:00 -0400

Project encompasses Two Heaters and Consists of New Flat Flame Application

TULSA, OK / ACCESS Newswire / May 14, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, announces that it has received a purchase order for the physical testing and demonstration of burners as the second phase of a process heater retrofit project comprising of a total of 32 ClearSign Core^™ burners to be