# PENWEST PHARMACEUTICALS CO

PENWEST PHARMACEUTICALS CO is a company headquartered in Patterson, NY, United States.

## Company overview

- **Legal name:** PENWEST PHARMACEUTICALS CO
- **Classification:** Company
- **Industry (SIC):** 2834 — Pharmaceutical Preparations
- **Headquarters:** Patterson, NY, United States
- **Incorporated in:** WA
- **Fiscal year end:** December 31
- **SEC CIK:** 0001047188

## About

PENWEST PHARMACEUTICALS CO is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001047188, and its reported industry is Pharmaceutical Preparations. The retained history contains 12 filings, including 8-K filed on 2010-10-15. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 8-K — filed 2010-10-15 — period 2010-10-15
- Form 8-K — filed 2010-10-07 — period 2010-10-07 — FORM 8-K
- Form DEF 14A — filed 2010-10-01 — period 2010-11-04 — DEFINITIVE PROXY STATEMENT
- Form 8-K — filed 2010-10-01 — period 2010-09-24 — FORM 8-K
- Form SC 13D — filed 2010-09-20
- Form 8-K — filed 2010-09-20 — period 2010-09-17 — FORM 8-K
- Form 8-K — filed 2010-08-10 — period 2010-08-09 — FORM 8-K
- Form 10-Q — filed 2010-08-06 — period 2010-06-30 — PENWEST PHARMACEUTICALS CO.
- Form 8-K — filed 2010-08-04 — period 2010-08-04 — 8-K
- Form 8-K — filed 2010-06-25 — period 2010-06-22 — FORM 8-K
- Form 8-K — filed 2010-06-14 — period 2010-06-08 — PENWEST PHARMACEUTICALS CO.
- Form 10-Q — filed 2010-05-10 — period 2010-03-31 — FORM 10-Q

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Updated: 2026-10-23T22:16:53Z

Canonical page: https://altss.com/profile/penwest-pharmaceuticals-co

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