Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001950047-25-004099
Filing Date
2025-06-10
Accepted
2025-06-10 16:25:18
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 6142
  Complete submission text file 0001950047-25-004099.txt   7560
Mailing Address C/O TESARO, INC. 1000 WINTER STREET, SUITE 3300 WALTHAM MA 02451
Business Address
Patel Kavita (Reporting) CIK: 0001670683 (see all company filings)

Type: 144

Mailing Address 800 BRIDGE PARKWAY REDWOOD CITY CA 94065
Business Address 800 BRIDGE PARKWAY REDWOOD CITY CA 94065 240-327-0603
Arcellx, Inc. (Subject) CIK: 0001786205 (see all company filings)

EIN.: 472855917 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 001-41259 | Film No.: 251037452
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)