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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001209191-19-007926
Filing Date
2019-02-06
Accepted
2019-02-06 20:59:41
Documents
1
Period of Report
2019-02-06

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 16516
  Complete submission text file 0001209191-19-007926.txt   20517
Mailing Address ONE MARINA PARK DRIVE, 10TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE, 10TH FLOOR BOSTON MA 02210 781-290-0770
Polaris Venture Partners VI, L.P. (Reporting) CIK: 0001493463 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38792 | Film No.: 19573231

Mailing Address ONE MARINA PARK DRIVE, 10TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE, 10TH FLOOR BOSTON MA 02210 885-787-3500
Polaris Venture Partners Founders' Fund VI, L.P. (Reporting) CIK: 0001575691 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38792 | Film No.: 19573233

Mailing Address 151 OYSTER POINT BLVD., SUITE 300 SOUTH SAN FRANCISCO CA 94080
Business Address 151 OYSTER POINT BLVD., SUITE 300 SOUTH SAN FRANCISCO CA 94080 415-231-5660
Alector, Inc. (Issuer) CIK: 0001653087 (see all company filings)

IRS No.: 462702363 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)

Mailing Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210 (855) 787-3500
Polaris Venture Management Co. VI, L.L.C. (Reporting) CIK: 0001665594 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38792 | Film No.: 19573235

Mailing Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210 8557873500
Polaris Venture Partners VI (AIV), L.P. (Reporting) CIK: 0001767127 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38792 | Film No.: 19573234

Mailing Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210
Business Address ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210 8557873500
PVP VI (AIV) Feeder Corp. Holding Partnership, L.P. (Reporting) CIK: 0001767130 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38792 | Film No.: 19573232