MDCO The Medicines Company
NASDAQNo longer listed
MDCO was the NASDAQ ticker symbol of The Medicines Company. It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol.
MDCO at a glance
- Symbol
- MDCO
- Company / issuer
- The Medicines Company
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015 – Aug 2018
MDCO ticker history
All listing names we have recorded under the symbol MDCO, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| The Medicines Company | — | 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 MDCO?
MDCO was the ticker symbol of The Medicines Company on NASDAQ.
Is MDCO still trading?
No. MDCO 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 MDCO listed on?
MDCO was listed on NASDAQ.
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