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Document and Entity Information
Oct. 25, 2024
Cover [Abstract]  
Entity Registrant Name MACROGENICS INC
Amendment Flag false
Entity Central Index Key 0001125345
Document Type 8-K
Document Period End Date Oct. 25, 2024
Entity Incorporation State Country Code DE
Entity File Number 001-36112
Entity Tax Identification Number 06-1591613
Entity Address, Address Line One 9704 Medical Center Drive
Entity Address, City or Town Rockville
Entity Address, State or Province MD
Entity Address, Postal Zip Code 20850
City Area Code (301)
Local Phone Number 251-5172
Security 12b Title Common Stock, par value $0.01 per share
Trading Symbol MGNX
Security Exchange Name NASDAQ
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false