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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000950170-24-001273
Filing Date
2024-01-03
Accepted
2024-01-03 18:02:10
Documents
1
Period of Report
2023-12-29

Document Format Files

Seq Description Document Type Size
1 4 ownership.html 4  
1 4 ownership.xml 4 16991
  Complete submission text file 0000950170-24-001273.txt   21405
Mailing Address BAKER BROS. ADVISORS LP 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address
BAKER JULIAN (Reporting) CIK: 0001087939 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508655

Mailing Address BAKER BROS. ADVISORS LP 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address
BAKER FELIX (Reporting) CIK: 0001087940 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508656

Mailing Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014 2123395600
BAKER BROS. ADVISORS LP (Reporting) CIK: 0001263508 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508659

Mailing Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014 212-339-5600
Baker Brothers Life Sciences LP (Reporting) CIK: 0001363364 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508657

Mailing Address 325 E MIDDLEFIELD ROAD MOUNTAIN VIEW CA 94043
Business Address 325 E MIDDLEFIELD ROAD MOUNTAIN VIEW CA 94043 650-965-7873
IGM Biosciences, Inc. (Issuer) CIK: 0001496323 (see all company filings)

IRS No.: 770349194 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)

Mailing Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014 212-339-5600
667, L.P. (Reporting) CIK: 0001551139 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508658

Mailing Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014
Business Address 860 WASHINGTON STREET 3RD FLOOR NEW YORK NY 10014 (212)339-5600
Baker Bros. Advisors (GP) LLC (Reporting) CIK: 0001580575 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-39045 | Film No.: 24508654