Generation Bio Co. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Cambridge, MA
SEC filing record 1 source field available
Fiscal year end
31 December
Generation Bio Co. has filed 526 SEC EDGAR filings since 05 Mar 2018

SEC filing history

Showing 1-25 of 526 matching filings.

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25
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1
SCHEDULE 13G/A File 005-91530

SCHEDULE 13G/A filing

Filing date
14 May 2026
Reporting date
Not listed
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15-12G File 001-39319

15-12G

Filing date
19 Feb 2026
Reporting date
Not listed
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SCHEDULE 13G/A File 005-91530

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
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SCHEDULE 13G/A File 005-91530

SCHEDULE 13G/A filing

Filing date
12 Feb 2026
Reporting date
Not listed
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SCHEDULE 13G/A File 005-91530

SCHEDULE 13G/A filing

Filing date
11 Feb 2026
Reporting date
Not listed
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EFFECT File 333-281335

EFFECT filing

Filing date
10 Feb 2026
Reporting date
Not listed
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4

4 filing

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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4

OWNERSHIP DOCUMENT

Filing date
09 Feb 2026
Reporting date
09 Feb 2026
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POS AM File 333-281335

POS AM

Filing date
09 Feb 2026
Reporting date
Not listed
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S-8 POS File 333-262980

S-8 POS

Filing date
09 Feb 2026
Reporting date
Not listed
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S-8 POS File 333-254429

S-8 POS

Filing date
09 Feb 2026
Reporting date
Not listed
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S-8 POS File 333-269203

S-8 POS

Filing date
09 Feb 2026
Reporting date
Not listed
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S-8 POS File 333-239116

S-8 POS

Filing date
09 Feb 2026
Reporting date
Not listed
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S-8 POS File 333-277704

S-8 POS

Filing date
09 Feb 2026
Reporting date
Not listed
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