v3.25.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2025
May 31, 2025
Sep. 30, 2024
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Mar. 31, 2025    
Current Fiscal Year End Date --03-31    
Document Transition Report false    
Entity File Number 001-39587    
Entity Registrant Name 23ANDME HOLDING CO.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 87-1240344    
Entity Address, Address Line One 870 Market Street, Room 415    
Entity Address, City or Town San Francisco    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94102    
City Area Code 650    
Local Phone Number 938-6300    
Title of 12(b) Security Class A common stock, $0.0001 par value per share    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 120.3
Entity Central Index Key 0001804591    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment flag false    
Documents Incorporated by Reference
Portions of the Registrant’s definitive proxy statement to be delivered to stockholders in connection with the 2025 annual meeting of stockholders are incorporated by reference in response to Part III of this Annual Report on Form 10-K to the extent stated herein. The 2025 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.
*On March 24, 2025, 23andMe Holding Co., a Delaware corporation (the “Company”), received a letter from the Listing Qualifications Department (the “Staff”) of The Nasdaq Stock Market LLC (“Nasdaq”), notifying the Company that, in accordance with Nasdaq Listing Rules 5101, 5110(b), and IM-5101-1, the Staff had determined to delist the Company’s securities from Nasdaq. The Company did not request a hearing before the panel to appeal the Staff’s determination. Accordingly, trading of the Company’s Class A common stock, $0.0001 par value per share (the “Class A common stock”) was suspended at the opening of business on March 31, 2025, and on June 6, 2025, the Company filed a Form 25 with the Securities and Exchange Commission to remove the Class A common stock from listing and registration on Nasdaq. The delisting will be effective ten days after the filing of the Form 25. The deregistration of the Class A common stock under Section 12(b) of the Securities Exchange Act of 1934, as amended, will be effective 90 days after the filing of the Form 25. The Class A common stock began trading on the OTC Pink Market on March 31, 2025 under the symbol “MEHCQ.”
    
Common Stock Class A      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   20,499,552  
Common Stock Class B      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   7,041,942