# TETRAPHASE PHARMACEUTICALS INC — SC TO-T/A

TETRAPHASE PHARMACEUTICALS INC of WATERTOWN, MA filed a SC TO-T/A with the SEC on 2020-07-29. Industry: Pharmaceutical Preparations.

## Filing

- Filed: 2020-07-29
- Form: SC TO-T/A
- Accession: 0001140361-20-016895
- Registrant: TETRAPHASE PHARMACEUTICALS INC
- CIK: 0001373707
- Industry (SIC): Pharmaceutical Preparations (2834)
- State of incorporation: DE
- Location: WATERTOWN, MA

## Documents (3)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | SC TO-T/A | SC TO-T/A |
| 2 | EX-99.(A)(5)(B) | EXHIBIT (A)(5)(B) |
| 3 | GRAPHIC | nt10013820x1\_exa5bimage01.jpg |

## Filing timeline for this registrant (52)

_Showing 12 of 52 filings._

| Filed | Form |
| --- | --- |
| [2020-07-29](https://search.stillhousedata.com/proxy/0001193125-20-201204) | SC 14D9/A |
| 2020-07-29 | SC TO-T/A |
| [2020-07-20](https://search.stillhousedata.com/proxy/0001193125-20-195519) | SC 14D9/A |
| [2020-06-29](https://search.stillhousedata.com/proxy/0001140361-20-014992) | SC TO-T |
| [2020-06-29](https://search.stillhousedata.com/proxy/0000950123-20-006482) | SC 14D9 |
| [2020-06-24](https://search.stillhousedata.com/proxy/0001193125-20-177712) | SC 14D9/A |
| [2020-06-24](https://search.stillhousedata.com/proxy/0001193125-20-177698) | SC TO-T/A |
| [2020-06-24](https://search.stillhousedata.com/proxy/0001193125-20-177109) | SC14D9C |
| [2020-06-24](https://search.stillhousedata.com/proxy/0001193125-20-177096) | SC TO-C |
| [2020-06-22](https://search.stillhousedata.com/proxy/0001193125-20-174648) | SC 14D9/A |
| [2020-06-22](https://search.stillhousedata.com/proxy/0000920465-20-000098) | SC TO-C |
| [2020-06-12](https://search.stillhousedata.com/proxy/0001193125-20-167749) | SC 14D9 |

## Co-filers (1)

- LA JOLLA PHARMACEUTICAL CO

## More

- [CIK 1373707 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1373707&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001140361-20-016895.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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