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Form 8-K · Current Report · Filed 2026-01-21

Rocket Lab's Neutron Rocket Test Encounters Failure

On January 21, 2026, Rocket Lab Corporation announced that qualification testing of the Stage 1 tank for its Neutron rocket resulted in a rupture during a hydrostatic pressure trial.

Filer
Rocket Lab USA Inc. RKLB · NASDAQ
Filed
Accession
0001819994-26-000004
CIK
0001819994
Signal
Medium impactIndustrials

Details

While there was no significant damage to the test structure or facilities, the outcome of the test will be reviewed to assess its impact on Neutron's launch schedule. Rocket Lab plans to provide an update on the Neutron schedule during its 2025 Q4 earnings call in February.

Items reported

Item events

Reported Item

Material Agreement Amendment

Market reaction

Close before filing

$89.16

Next session

-1.3%

Since filing

-27.2%

Latest close

$64.94

What happened, not what will happen — closing prices around the filing date.

About Rocket Lab USA Inc.

Rocket Lab USA Inc. is an innovative aerospace company specializing in the manufacture and launch of small satellite launch vehicles. The company's primary purpose is to facilitate rapid and reliable access to space, a crucial service as the demand for satellite deployment grows across numerous industries. Through its Electron launch vehicle and recently developed Neutron rocket, Rocket Lab USA Inc. impacts sectors such as telecommunications, earth observation, space research, and national defense. Additionally, Rocket Lab develops and provides small satellite solutions, including satellite components, and services for end-to-end space missions. Founded in 2006 and headquartered in Long Beach, California, the company has established itself as a significant force in the commercialization of space, supporting new space ventures and contributing to technological advancements. By reducing costs and providing frequent launch opportunities, Rocket Lab USA Inc. plays a vital role in furthering the accessibility of space exploration and satellite management.

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