Company · CIK 1274792

# MERRIMACK PHARMACEUTICALS INC

| CIK | [1274792](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001274792) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 2834 — Pharmaceutical Preparations |
| Incorporated in | DE |
| Business address | MA |
| Listed | no ticker on SEC record today |
| First annual or quarterly report | 2012-03-30 |

## Offerings

 5 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-222093 | Shelf Effective | 2017-12-15 | 2018-01-05 | 2 |
| 333-205637 | Shelf Effective | 2015-07-13 | 2015-07-13 | 1 |
| 333-194312 | Shelf Effective | 2014-03-04 | 2014-04-02 | 2 |
| 333-186369 | Shelf Effective | 2013-02-01 | 2013-07-12 | 6 |
| 333-175427 | IPO Final prospectus | 2011-07-08 | 2012-03-29 | 8 |

## Filings

 19

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2018-01-05 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1274792/999999999518000053/9999999995-18-000053-index.htm) Declared effective | 333-222093 | 9999999995-18-000053 |
| 2017-12-15 | [S-3](https://www.sec.gov/Archives/edgar/data/1274792/000119312517370765/0001193125-17-370765-index.htm) Shelf registered | 333-222093 | 0001193125-17-370765 |
| 2015-07-13 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1274792/000119312515251275/0001193125-15-251275-index.htm) Shelf registered | 333-205637 | 0001193125-15-251275 |
| 2014-04-02 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1274792/999999999514000853/9999999995-14-000853-index.htm) Declared effective | 333-194312 | 9999999995-14-000853 |
| 2014-03-04 | [S-3](https://www.sec.gov/Archives/edgar/data/1274792/000119312514082308/0001193125-14-082308-index.htm) Shelf registered | 333-194312 | 0001193125-14-082308 |
| 2013-07-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1274792/000104746913007540/0001047469-13-007540-index.htm) Shelf takedown | 333-186369 | 0001047469-13-007540 |
| 2013-07-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1274792/000104746913007538/0001047469-13-007538-index.htm) Shelf takedown | 333-186369 | 0001047469-13-007538 |
| 2013-07-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1274792/000104746913007474/0001047469-13-007474-index.htm) Shelf takedown | 333-186369 | 0001047469-13-007474 |
| 2013-07-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1274792/000104746913007472/0001047469-13-007472-index.htm) Shelf takedown | 333-186369 | 0001047469-13-007472 |
| 2013-02-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1274792/999999999513000441/9999999995-13-000441-index.htm) Declared effective | 333-186369 | 9999999995-13-000441 |
| 2013-02-01 | [S-3](https://www.sec.gov/Archives/edgar/data/1274792/000104746913000603/0001047469-13-000603-index.htm) Shelf registered | 333-186369 | 0001047469-13-000603 |
| 2012-03-29 | [424B4](https://www.sec.gov/Archives/edgar/data/1274792/000104746912003551/0001047469-12-003551-index.htm) Final prospectus | 333-175427 | 0001047469-12-003551 |
| 2012-03-27 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1274792/999999999512000847/9999999995-12-000847-index.htm) Declared effective | 333-175427 | 9999999995-12-000847 |
| 2012-01-31 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1274792/999999999512000351/9999999995-12-000351-index.htm) Declared effective | 333-175427 | 9999999995-12-000351 |
| 2012-01-13 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1274792/000104746912000176/0001047469-12-000176-index.htm) Amendment | 333-175427 | 0001047469-12-000176 |
| 2011-10-26 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1274792/000104746911008710/0001047469-11-008710-index.htm) Amendment | 333-175427 | 0001047469-11-008710 |
| 2011-09-15 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1274792/000104746911008044/0001047469-11-008044-index.htm) Amendment | 333-175427 | 0001047469-11-008044 |
| 2011-08-19 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1274792/000104746911007538/0001047469-11-007538-index.htm) Amendment | 333-175427 | 0001047469-11-007538 |
| 2011-07-08 | [S-1](https://www.sec.gov/Archives/edgar/data/1274792/000104746911006223/0001047469-11-006223-index.htm) Registration filed | 333-175427 | 0001047469-11-006223 |

[All filings of this company](https://equitycapital.markets/filings?cik=1274792) · [CSV](https://equitycapital.markets/filings.csv?cik=1274792)

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Source page: https://equitycapital.markets/company/1274792 · Data: U.S. SEC EDGAR · CC BY 4.0