OB Outbrain Inc.
NASDAQNo longer listedCommon stock
OB was the NASDAQ ticker symbol of Outbrain 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.
OB at a glance
- Symbol
- OB
- Company / issuer
- Outbrain Inc.
- Security type
- Common stock
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Apr 2015 – Jun 2025
- Sector
- Technology
- Industry
- Computer Software: Programming Data Processing
- Country
- United States
- IPO year
- 2021
- Last reported market cap
- $243.3 million (May 2025)
OB ticker history
All companies and securities we have recorded under the symbol OB, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| OneBeacon Insurance Group, Ltd. | Class A Common Stock | Apr 2015 | Apr 2015 |
| Outbrain Inc. | Common Stock | Jul 2021 | Jun 2025 |
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 OB?
OB was the ticker symbol of Outbrain Inc on NASDAQ.
Is OB still trading?
No. OB does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Jun 2025.
Which companies have used the ticker OB?
Our listing records show OB used by: OneBeacon Insurance Group, Ltd.; Outbrain Inc..
Which exchange was OB listed on?
OB was listed on NASDAQ.
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