v3.26.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2026
May 12, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2026  
Entity File Number 001-39539  
Entity Registrant Name PMV PHARMACEUTICALS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-3218129  
Entity Address, Address Line One 400 Alexander Park Drive  
Entity Address, Address Line Two Suite 301  
Entity Address, City or Town Princeton  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 08540  
City Area Code 609  
Local Phone Number 642-6670  
Title of 12(b) Security Common stock, par value $0.00001  
Trading Symbol PMVP  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Bankruptcy Proceedings, Reporting Current true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   53,331,766
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0001699382  
Amendment Flag false