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Deep Fission tests reactor canister install using standard drill gear

Thu, 10 Sep 2026 07:32:50 -0400

Deep Fission, Inc. (Nasdaq: FISN) announced it successfully installed and retrieved a full-size prototype reactor canister from a borehole using standard commercial drilling equipment on Sept. 3, 2026.

A commercial drilling crew lowered the 20-foot, non-nuclear canister to 100 feet depth inside a 34-inch-wide borehole, then brought it back to the surface. The canister is a full-size replica of the housing designed for the company's Gravity™ reactor core and contained no nuclear fuel.

According to the company, no custom-built or specially adapted equipment was required for the demonstration. The drilling rig and rigging used are available from commercial contractors.

"We did not have

Deep Fission Installs and Retrieves Full-Scale Reactor Canister Using Off-the-Shelf Drilling Equipment

Thu, 10 Sep 2026 07:30:00 -0400

Commercial drilling crew successfully lowered and recovered Deep Fission's 20-foot prototype reactor canister using equipment already in commercial service in the drilling industry

BERKELEY, Calif.--(BUSINESS WIRE)-- Deep Fission, Inc. (Nasdaq: FISN) ("Deep Fission" or the "Company"), an advanced nuclear energy company developing small modular pressurized water reactors a mile underground, today announced that it has successfully installed and retrieved a full-size prototype reactor canister from a borehole using standard commercial drilling equipment operated by a commercial drilling and rigging crew. Nothing about the demonstration required equipment that had to be invented, custom-built, or adapted for nuclear service.

This

Deep Fission Installs and Retrieves Full-Scale Reactor Canister Using Off-the-Shelf Drilling Equipment

Thu, 10 Sep 2026 07:30:00 -0400

Commercial drilling crew successfully lowered and recovered Deep Fission's 20-foot prototype reactor canister using equipment already in commercial service in the drilling industry

This

Maxim Group Starts Deep Fission (FISN) at Buy

Mon, 31 Aug 2026 07:48:50 -0400

Maxim Group analyst Tate Sullivan initiates coverage on Deep Fission (NASDAQ: FISN) with a Buy rating and a price target of $17.00.

For an analyst ratings summary and ratings history on Deep Fission click here. For more ratings news on Deep Fission click here.

Shares of Deep Fission closed at $6.56 yesterday.

Maxim Group Starts Deep Fission (FISN) at Buy

Mon, 31 Aug 2026 07:48:50 -0400

Maxim Group analyst Tate Sullivan initiates coverage on Deep Fission (NASDAQ: FISN) with a Buy rating and a price target of $17.00.

For an analyst ratings summary and ratings history on Deep Fission click here. For more ratings news on Deep Fission click here.

Shares of Deep Fission closed at $6.56 yesterday.

Deep Fission Names ShawnTrell Scales as Its First Chief People Officer

Tue, 25 Aug 2026 07:00:00 -0400

-- Veteran HR executive joins nuclear energy company to build the people function behind its mission to power humanity from a mile underground --

CHICAGO--(BUSINESS WIRE)-- Deep Fission, Inc. (Nasdaq: FISN) (“Deep Fission” or the “Company”), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the appointment of ShawnTrell Scales as Chief People Officer. She will lead the company's people strategy as Deep Fission aims to advance from first-of-a-kind demonstration to commercial deployment.