Spero Therapeutics, Inc. SPRO (last ticker on record)
CIK 1701108Its SEC filings (opens in a new tab)
- 95% wipeout
- Restructuring
- SEC/DOJ scrutiny
- 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
- 3
- Newest began Jan 2025
- Largest fall in its shares
- 97%
- Dec 2020 to Apr 2025
- Law firms
- 3
- Linked to 5 or more companies
- Lawyers
- 9
- Linked to 5 or more companies
What happened
- SEC administrative actionSEC order (opens in a new tab)
- Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
- A filing mentions cooperating with the SECForm 8-K (opens in a new tab)
- A filing mentions a Wells noticeForm 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
- Exit or disposal costs (Item 2.05)Form 8-K (opens in a new tab)
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.
- WILMER, CUTLER & PICKERINGFirst linked Aug 2025 · Named in a filing · 662 linked companiesSEC/DOJ scrutiny 1.14× · Went dark 0.33× · 95% wipeout 1.23×
- Latham & Watkins LLPFirst linked Aug 2017 · Named in SEC correspondence · 2,667 linked companiesSEC/DOJ scrutiny 0.98× · Went dark 0.31× · 95% wipeout 1.08×
- Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.First linked Aug 2017 · Named in SEC correspondence · 567 linked companiesSEC/DOJ scrutiny 0.92× · Went dark 0.60× · 95% wipeout 1.18×
| Name | First linked | How it is known | Linked companies | SEC/DOJ scrutiny | Went dark | 95% wipeout |
|---|---|---|---|---|---|---|
| WILMER, CUTLER & PICKERING | Aug 2025 | Named in a filing | 662 | 1.14 | 0.33 | 1.23 |
| Latham & Watkins LLP | Aug 2017 | Named in SEC correspondence | 2,667 | 0.98 | 0.31 | 1.08 |
| Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. | Aug 2017 | Named in SEC correspondence | 567 | 0.92 | 0.60 | 1.18 |
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.
- Lisa FirenzeWILMER, CUTLER & PICKERINGFirst linked Aug 2026 · Named in a filing · 19 linked companiesSEC/DOJ scrutiny 0.93× · Went dark 0.00× · 95% wipeout 0.91×
- Matthew GardellaFirst linked Mar 2024 · Named in SEC correspondence · 7 linked companiesSEC/DOJ scrutiny 1.84× · Went dark 0.00× · 95% wipeout 1.08×
- Matthew W. TikonoffMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.First linked Oct 2017 · Named in SEC correspondence · 8 linked companiesSEC/DOJ scrutiny 1.85× · Went dark 0.00× · 95% wipeout 0.66×
- Lewis J. GeffenMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.First linked Aug 2017 · Named in SEC correspondence · 17 linked companiesSEC/DOJ scrutiny 1.32× · Went dark 0.00× · 95% wipeout 1.05×
- Matthew J. GardellaMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.First linked Aug 2017 · Named in SEC correspondence · 27 linked companiesSEC/DOJ scrutiny 0.85× · Went dark 0.00× · 95% wipeout 0.60×
- Caroline DotoloWILMER, CUTLER & PICKERINGFirst linked Aug 2026 · Text search only · 10 linked companiesSEC/DOJ scrutiny 0.00× · Went dark 0.00× · 95% wipeout 0.52×
- Michael E. SullivanLatham & Watkins LLPFirst linked Dec 2018 · Text search only · 43 linked companiesSEC/DOJ scrutiny 0.56× · Went dark 0.00× · 95% wipeout 0.77×
- Nathan AjiashviliLatham & Watkins LLPFirst linked Aug 2017 · Text search only · 76 linked companiesSEC/DOJ scrutiny 0.38× · Went dark 0.00× · 95% wipeout 1.16×
- Peter N. HandrinosLatham & Watkins LLPFirst linked Aug 2017 · Text search only · 85 linked companiesSEC/DOJ scrutiny 0.61× · Went dark 0.00× · 95% wipeout 1.32×
| Name | First linked | How it is known | Linked companies | SEC/DOJ scrutiny | Went dark | 95% wipeout |
|---|---|---|---|---|---|---|
| Lisa FirenzeWILMER, CUTLER & PICKERING | Aug 2026 | Named in a filing | 19 | 0.93 | 0.00 | 0.91 |
| Matthew Gardella | Mar 2024 | Named in SEC correspondence | 7 | 1.84 | 0.00 | 1.08 |
| Matthew W. TikonoffMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. | Oct 2017 | Named in SEC correspondence | 8 | 1.85 | 0.00 | 0.66 |
| Lewis J. GeffenMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. | Aug 2017 | Named in SEC correspondence | 17 | 1.32 | 0.00 | 1.05 |
| Matthew J. GardellaMintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. | Aug 2017 | Named in SEC correspondence | 27 | 0.85 | 0.00 | 0.60 |
| Caroline DotoloWILMER, CUTLER & PICKERING | Aug 2026 | Text search only | 10 | 0.00 | 0.00 | 0.52 |
| Michael E. SullivanLatham & Watkins LLP | Dec 2018 | Text search only | 43 | 0.56 | 0.00 | 0.77 |
| Nathan AjiashviliLatham & Watkins LLP | Aug 2017 | Text search only | 76 | 0.38 | 0.00 | 1.16 |
| Peter N. HandrinosLatham & Watkins LLP | Aug 2017 | Text search only | 85 | 0.61 | 0.00 | 1.32 |