Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001193125-25-280330
Filing Date
2025-11-13
Accepted
2025-11-13 16:41:55
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G/A  
1 primary_doc.xml SCHEDULE 13G/A 29037
  Complete submission text file 0001193125-25-280330.txt   30808
Mailing Address ONE MARINA PARK DRIVE, 8TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE, 8TH FLOOR BOSTON MA 02210 781-290-0770
Polaris Venture Partners VI, L.P. (Filed by) CIK: 0001493463 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G/A

Mailing Address 131 OYSTER POINT BLVD., SUITE 600 SOUTH SAN FRANCISCO CA 94080
Business Address 131 OYSTER POINT BLVD., SUITE 600 SOUTH SAN FRANCISCO CA 94080 415-231-5660
Alector, Inc. (Subject) CIK: 0001653087 (see all company filings)

EIN.: 822933343 | Fiscal Year End: 1231
Type: SCHEDULE 13G/A | Act: 34 | File No.: 005-90858 | Film No.: 251479266
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)