IGM Biosciences, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Mountain View, CA
SEC filing record 1 source field available
Fiscal year end
31 December
IGM Biosciences, Inc. has filed 710 SEC EDGAR filings since 16 Jul 2010

SEC filing history

Showing 1-25 of 710 matching filings.

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25
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1
SCHEDULE 13G/A File 005-91132

SCHEDULE 13G/A filing

Filing date
13 Nov 2025
Reporting date
Not listed
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15-12G File 001-39045

15-12G

Filing date
25 Aug 2025
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SCHEDULE 13D/A File 005-91132

SCHEDULE 13D/A filing

Filing date
18 Aug 2025
Reporting date
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4

4

Filing date
18 Aug 2025
Reporting date
14 Aug 2025
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SCHEDULE 13D/A File 005-91132

SCHEDULE 13D/A filing

Filing date
18 Aug 2025
Reporting date
Not listed
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SCHEDULE 13D/A File 005-91132

SCHEDULE 13D/A filing

Filing date
15 Aug 2025
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4

OWNERSHIP DOCUMENT

Filing date
15 Aug 2025
Reporting date
14 Aug 2025
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EFFECT File 333-275519

EFFECT filing

Filing date
14 Aug 2025
Reporting date
Not listed
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EFFECT File 333-268136

EFFECT filing

Filing date
14 Aug 2025
Reporting date
Not listed
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EFFECT File 333-258644

EFFECT filing

Filing date
14 Aug 2025
Reporting date
Not listed
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EFFECT File 333-258641

EFFECT filing

Filing date
14 Aug 2025
Reporting date
Not listed
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EFFECT File 333-249863

EFFECT filing

Filing date
14 Aug 2025
Reporting date
Not listed
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

OWNERSHIP DOCUMENT

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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4

4 filing

Filing date
14 Aug 2025
Reporting date
14 Aug 2025
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S-8 POS File 333-285602

S-8 POS

Filing date
14 Aug 2025
Reporting date
Not listed
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S-8 POS File 333-277744

S-8 POS

Filing date
14 Aug 2025
Reporting date
Not listed
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S-8 POS File 333-270991

S-8 POS

Filing date
14 Aug 2025
Reporting date
Not listed
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S-8 POS File 333-263927

S-8 POS

Filing date
14 Aug 2025
Reporting date
Not listed
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