EEI Ecology and Environment, Inc.
NASDAQNo longer listed
EEI was the NASDAQ ticker symbol of Ecology and Environment, 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.
EEI at a glance
- Symbol
- EEI
- Company / issuer
- Ecology and Environment, Inc.
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015 – Aug 2018
EEI ticker history
All listing names we have recorded under the symbol EEI, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Ecology and Environment, Inc. | — | Jan 2015 | Aug 2018 |
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 EEI?
EEI was the ticker symbol of Ecology and Environment, Inc on NASDAQ.
Is EEI still trading?
No. EEI does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Aug 2018.
Which exchange was EEI listed on?
EEI was listed on NASDAQ.
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