# Sienna Biopharmaceuticals, Inc.

Sienna Biopharmaceuticals, Inc. is a company headquartered in Westlake Village, CA, United States.

## Company overview

- **Legal name:** Sienna Biopharmaceuticals, Inc.
- **Former names in filing history:** Sienna Labs, Inc. (2015-10-20 to 2015-10-20)
- **Classification:** Company
- **Industry (SIC):** 2834 — Pharmaceutical Preparations
- **Headquarters:** Westlake Village, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0001656328

## About

Sienna Biopharmaceuticals, Inc. is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001656328, and its reported industry is Pharmaceutical Preparations. In 10-K filed on 2019-03-14, it reported annual revenue of USD 0; net income of USD -73,471,000; total assets of USD 107,306,000 for the fiscal period ended 2018-12-31. The financial history preserves reporting periods, currencies, filing accessions and source provenance. Figures are reported filing data, rather than real-time estimates.

## Financials

Annual figures as originally reported. Currency is shown for each fiscal year; B means billion and M means million.

### FY2018 (period ended 2018-12-31)

- **Revenue:** $0 (USD 0)
- **Net income:** -$73.5M (USD -73,471,000)
- **Total assets:** $107.3M (USD 107,306,000)
- **Cash and equivalents:** $48.5M (USD 48,526,000)
- **Operating cash flow:** -$61.7M (USD -61,693,000)

### FY2017 (period ended 2017-12-31)

- **Net income:** -$50.5M (USD -50,545,000)
- **Total assets:** $136.8M (USD 136,847,000)
- **Cash and equivalents:** $74.5M (USD 74,467,000)

## Recent SEC filings

- Form 8-K — filed 2019-12-11 — period 2019-12-10 — 8-K
- Form 8-K — filed 2019-11-15 — period 2019-11-12 — 8-K
- Form 10-Q — filed 2019-11-12 — period 2019-09-30 — 10-Q
- Form 8-K — filed 2019-10-17 — period 2019-10-10 — 8-K
- Form 8-K — filed 2019-09-23 — period 2019-09-17 — 8-K
- Form 8-K — filed 2019-09-17 — period 2019-09-11 — 8-K
- Form 8-K — filed 2019-08-14 — period 2019-08-09 — 8-K
- Form 10-Q — filed 2019-08-08 — period 2019-06-30 — 10-Q
- Form 8-K — filed 2019-06-03 — period 2019-05-30 — 8-K
- Form 10-Q — filed 2019-05-08 — period 2019-03-31 — FORM 10-Q
- Form 8-K — filed 2019-05-08 — period 2019-05-08 — 8-K
- Form DEF 14A — filed 2019-04-11 — period 2019-05-30 — DEF 14A

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Updated: 2026-10-23T20:08:00Z

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