v3.26.3
Cover
Sep. 22, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 22, 2026
Entity File Number 001-35890
Entity Registrant Name Tempest Therapeutics, Inc.
Entity Central Index Key 0001544227
Entity Tax Identification Number 45-1472564
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 2000 Sierra Point Parkway
Entity Address, Address Line Two Suite 400
Entity Address, City or Town Brisbane
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94005
City Area Code 415
Local Phone Number 798-8589
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock, $0.001 par value  
Title of 12(b) Security Common Stock, $0.001 par value
Trading Symbol TPST
Security Exchange Name NASDAQ
Series A Junior Participating Preferred Purchase Rights  
Title of 12(b) Security Series A Junior Participating Preferred Purchase Rights
Security Exchange Name NASDAQ