Generation Bio Co. GBIO (last ticker on record)
CIK 1733294Its SEC filings (opens in a new tab)
- 95% wipeout
- Restructuring
- Delisting notice (not a red flag)
These figures describe clients, not conduct. A lawyer or firm can serve many companies that later had trouble for reasons that have nothing to do with their work, and nothing here says any lawyer or firm did anything wrong.
- Red flags
- 2
- Newest began Nov 2023
- Largest fall in its shares
- 99%
- Dec 2020 to Jun 2025
- Law firms
- 5
- Linked to 5 or more companies
- Lawyers
- 5
- Linked to 5 or more companies
What happened
- Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
- Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
- Exit or disposal costs (Item 2.05)Form 8-K (opens in a new tab)
- Shares down 95% from their high
An SEC release can name a company’s officer, or its stock as what a scheme sold or moved, so the company may be the victim. Each link goes to what to read.
Law firms
The ratios are about all the companies linked to each one, this one included: how many had that outcome, as a multiple of what comparable companies show. 1.00 means no more than expected.
- Gibson, Dunn & Crutcher LLPFirst linked Feb 2026 · Named in a filing · 1,125 linked companiesSEC/DOJ scrutiny 1.23× · Went dark 0.20× · 95% wipeout 0.96×
- HALE AND DORRFirst linked Apr 2020 · Named in a filing · 665 linked companiesSEC/DOJ scrutiny 1.06× · Went dark 0.33× · 95% wipeout 1.26×
- WILMER, CUTLER & PICKERINGFirst linked Apr 2020 · Named in SEC correspondence · 662 linked companiesSEC/DOJ scrutiny 1.14× · Went dark 0.33× · 95% wipeout 1.26×
- McCarter & EnglishFirst linked Jun 2020 · Text search only · 141 linked companiesSEC/DOJ scrutiny 1.18× · Went dark 0.69× · 95% wipeout 0.78×
- Cooley LLPFirst linked Apr 2020 · Text search only · 1,634 linked companiesSEC/DOJ scrutiny 0.71× · Went dark 0.44× · 95% wipeout 1.24×
| Name | First linked | How it is known | Linked companies | SEC/DOJ scrutiny | Went dark | 95% wipeout |
|---|---|---|---|---|---|---|
| Gibson, Dunn & Crutcher LLP | Feb 2026 | Named in a filing | 1,125 | 1.23 | 0.20 | 0.96 |
| HALE AND DORR | Apr 2020 | Named in a filing | 665 | 1.06 | 0.33 | 1.26 |
| WILMER, CUTLER & PICKERING | Apr 2020 | Named in SEC correspondence | 662 | 1.14 | 0.33 | 1.26 |
| McCarter & English | Jun 2020 | Text search only | 141 | 1.18 | 0.69 | 0.78 |
| Cooley LLP | Apr 2020 | Text search only | 1,634 | 0.71 | 0.44 | 1.24 |
Lawyers
The ratios are about all the companies linked to each one, this one included: how many had that outcome, as a multiple of what comparable companies show. 1.00 means no more than expected.
- Ryan A. MurrGibson, Dunn & Crutcher LLPFirst linked Feb 2026 · Named in a filing · 77 linked companiesSEC/DOJ scrutiny 0.53× · Went dark 0.77× · 95% wipeout 0.66×
- Mark NylenWILMER, CUTLER & PICKERINGFirst linked Jan 2026 · Named in a filing · 5 linked companiesSEC/DOJ scrutiny 0.00× · Went dark 0.00× · 95% wipeout 0.00×
- Molly W. FoxWILMER, CUTLER & PICKERINGFirst linked Apr 2020 · Named in SEC correspondence · 12 linked companiesSEC/DOJ scrutiny 0.97× · Went dark 0.00× · 95% wipeout 2.19×
- Stuart M. FalberWILMER, CUTLER & PICKERINGFirst linked Apr 2020 · Named in SEC correspondence · 32 linked companiesSEC/DOJ scrutiny 1.05× · Went dark 0.00× · 95% wipeout 1.27×
- Joshua RottnerCooley LLPFirst linked Apr 2020 · Text search only · 5 linked companiesSEC/DOJ scrutiny 0.00× · Went dark 5.42× · 95% wipeout 1.65×
| Name | First linked | How it is known | Linked companies | SEC/DOJ scrutiny | Went dark | 95% wipeout |
|---|---|---|---|---|---|---|
| Ryan A. MurrGibson, Dunn & Crutcher LLP | Feb 2026 | Named in a filing | 77 | 0.53 | 0.77 | 0.66 |
| Mark NylenWILMER, CUTLER & PICKERING | Jan 2026 | Named in a filing | 5 | 0.00 | 0.00 | 0.00 |
| Molly W. FoxWILMER, CUTLER & PICKERING | Apr 2020 | Named in SEC correspondence | 12 | 0.97 | 0.00 | 2.19 |
| Stuart M. FalberWILMER, CUTLER & PICKERING | Apr 2020 | Named in SEC correspondence | 32 | 1.05 | 0.00 | 1.27 |
| Joshua RottnerCooley LLP | Apr 2020 | Text search only | 5 | 0.00 | 5.42 | 1.65 |