IRDMB Iridium Communications Inc
IRDMB was the NASDAQ ticker symbol of Iridium Communications 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. A company with the same name, Iridium Communications Inc, currently trades as IRDM.
IRDMB at a glance
- Symbol
- IRDMB
- Company / issuer
- Iridium Communications Inc
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015 – Aug 2018
IRDMB ticker history
All listing names we have recorded under the symbol IRDMB, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Iridium Communications 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.
Other symbols for Iridium Communications Inc
Frequently asked questions
What company has the ticker symbol IRDMB?
IRDMB was the ticker symbol of Iridium Communications Inc on NASDAQ.
Is IRDMB still trading?
No. IRDMB does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Aug 2018. The company now appears to trade as IRDM (Iridium Communications Inc).
Which exchange was IRDMB listed on?
IRDMB was listed on NASDAQ.