secwatch / observer
8-K filed June 4, 2026, 5:00 PM ET ticker TPST CIK 0001544227
leadership confidence high sentiment neutral materiality 0.65

Tempest Therapeutics CFO resigns, appoints new CFO and two independent directors

Tempest Therapeutics, Inc.

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Appointed

John David Yee

Class II Director
TPST · Tempest Therapeutics, Inc.
Effective
2026-06-04
Filed
June 4, 2026, 5:00 PM ET
the Board appointed Dr. John David Yee and Mr. William Drake Richey as Class II directors to fill vacancies on the Board.
Appointed

Justin Trojanowski

Vice President, Finance, Principal Financial Officer and Corporate Secretary
TPST · Tempest Therapeutics, Inc.
Effective
2026-06-05
Filed
June 4, 2026, 5:00 PM ET
the Board of Directors of the Company (the “Board”) appointed Mr. Justin Trojanowski as Vice President, Finance, Principal Financial Officer and Corporate Secretary of the Company, in addition to his current role as Corporate Controller, Treasurer and Principal Accounting Officer of the Company.
Appointed

William Drake Richey

Class II Director
TPST · Tempest Therapeutics, Inc.
Effective
2026-06-04
Filed
June 4, 2026, 5:00 PM ET
the Board appointed Dr. John David Yee and Mr. William Drake Richey as Class II directors to fill vacancies on the Board.
Departed

Nicholas Maestas

Chief Financial Officer
TPST · Tempest Therapeutics, Inc.
Effective
2026-06-05
Successor
Justin Trojanowski
Filed
June 4, 2026, 5:00 PM ET
Mr. Nicholas Maestas notified Tempest Therapeutics, Inc. (the “Company”) of his decision to resign from his position as Chief Financial Officer of the Company and from any and all other positions he holds with the Company, effective as of June 5, 2026.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

John David Yee was appointed as Class II Director at Tempest Therapeutics, Inc..

Action
appointed
Role
Class II Director
Exact text from the filing
the Board appointed Dr. John David Yee and Mr. William Drake Richey as Class II directors to fill vacancies on the Board.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Justin Trojanowski was appointed as Vice President, Finance, Principal Financial Officer and Corporate Secretary at Tempest Therapeutics, Inc..

Action
appointed
Role
Vice President, Finance, Principal Financial Officer and Corporate Secretary
Exact text from the filing
the Board of Directors of the Company (the “Board”) appointed Mr. Justin Trojanowski as Vice President, Finance, Principal Financial Officer and Corporate Secretary of the Company, in addition to his current role as Corporate Controller, Treasurer and Principal Accounting Officer of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

William Drake Richey was appointed as Class II Director at Tempest Therapeutics, Inc..

Action
appointed
Role
Class II Director
Exact text from the filing
the Board appointed Dr. John David Yee and Mr. William Drake Richey as Class II directors to fill vacancies on the Board.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Nicholas Maestas resigned as Chief Financial Officer at Tempest Therapeutics, Inc..

Action
resigned
Role
Chief Financial Officer
Exact text from the filing
Mr. Nicholas Maestas notified Tempest Therapeutics, Inc. (the “Company”) of his decision to resign from his position as Chief Financial Officer of the Company and from any and all other positions he holds with the Company, effective as of June 5, 2026.
View on SEC.gov

Tempest Therapeutics, Inc. filing history →

Source: SEC EDGAR
accession 0001193125-26-257684
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