Plus Therapeutics appoints Kyle Guse to board; Greg Petersen resigns

PLUS THERAPEUTICS, INC.

Kyle Guse appointed to board effective April 18, 2025, filling vacancy from Greg Petersen's resignation.
Guse named to Audit Committee (Chair) and Compensation Committee; board deemed independent under Nasdaq rules.
Greg Petersen resigned same day; no disagreement with company operations, policies, or practices.
Guse is Chief Legal Officer at DDC Enterprise; previously CFO/GC at Atossa Therapeutics.
Guse brings 30 years of experience in finance, corporate governance, and M&A; will stand for reelection.

item 5.02

Machine-readable event card

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form_type: 8-K
ticker: PSTV
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company_name: PLUS THERAPEUTICS, INC.
filed_at: 2025-04-18T23:59:59+00:00
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generated_at: 2026-05-23T10:53:56.827336+00:00
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Departed

Greg Petersen

Director

PSTV · PLUS THERAPEUTICS, INC.

Effective: 2025-04-18
Successor: Kyle Guse
Filed: Apr 18, 2025 23:59 UTC

On April 18, 2025, Mr. Greg Petersen resigned as a member of the Board. Mr. Petersen informed the Company that his resignation was not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

Appointed

Kyle Guse

Director

PSTV · PLUS THERAPEUTICS, INC.

Effective: 2025-04-18
Filed: Apr 18, 2025 23:59 UTC

On April 18, 2025, the Board of Directors (the “Board”) of Plus Therapeutics, Inc (the “Company”) unanimously appointed Mr. Kyle Guse to serve as a director of the Board, effective immediately.

Source-grounded claims

319469abdc

Greg Petersen resigned as Director at PLUS THERAPEUTICS, INC..

On April 18, 2025, Mr. Greg Petersen resigned as a member of the Board. Mr. Petersen informed the Company that his resignation was not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

7fb8b98100

Kyle Guse was appointed as Director at PLUS THERAPEUTICS, INC..

On April 18, 2025, the Board of Directors (the “Board”) of Plus Therapeutics, Inc (the “Company”) unanimously appointed Mr. Kyle Guse to serve as a director of the Board, effective immediately.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

Source: SEC EDGAR

accession 0000950170-25-055883

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