AEZS Aeterna Zentaris Inc.
AEZS was the NASDAQ ticker symbol of Aeterna Zentaris Inc. It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol. SEC records list “Aeterna Zentaris Inc.” as a former name of COSCIENS Biopharma Inc., which trades today as CSCIF.
AEZS at a glance
- Symbol
- AEZS
- Company / issuer
- Aeterna Zentaris Inc.
- Security type
- Common stock
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015 – Jul 2024
- Sector
- Health Care
- Industry
- Biotechnology: Pharmaceutical Preparations
- Country
- Canada
- Last reported market cap
- $10.0 million (Jul 2024)
AEZS ticker history
All listing names we have recorded under the symbol AEZS, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Aeterna Zentaris Inc. | Common Stock | Jan 2015 | Jul 2024 |
Snapshots have gaps (notably 2018–2021, and 2015–2021 for NYSE listings), so the actual delisting date may be later than the last-seen date.
Frequently asked questions
What company has the ticker symbol AEZS?
AEZS was the ticker symbol of Aeterna Zentaris Inc on NASDAQ.
Is AEZS still trading?
No. AEZS does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Jul 2024. The company now appears to trade as CSCIF (COSCIENS Biopharma Inc.).
Which exchange was AEZS listed on?
AEZS was listed on NASDAQ.