Abnormal AI
PrivateLast Round
Series D
Aug 6, 2024
Est. Valuation
$5.1B
Total Funding Raised
$535M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Abnormal AI is a cybersecurity company that provides a cloud-native email security platform leveraging AI-based behavioral data science to detect and block sophisticated email attacks.
Sector
Cybersecurity
Verticals
Email Security, Identity & Access, Cloud Security, Threat Intelligence
Business Model
B2B
Customer Profile
Subscription SaaS
AI Layer
Application
Keywords
Price History
Caplight MarketPrice™ estimate for Abnormal AI, published with a 90-day delay.
Caplight MarketPrice™
$18.85
per share, as of July 2026
+58.1%
2-year change
The most recent months of MarketPrice™ are available to Caplight clients.
Caplight MarketPrice™ is an estimate of private secondary market pricing, shown here on a delayed basis for illustrative purposes only. It may be incomplete, is subject to change, and may not be relied upon for any purpose or considered investment advice.
Abnormal AI Comparables
Compare Abnormal AI with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Darktrace | 84% | |
| Mimecast | 84% | |
| Sublime Security | 81% |
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Abnormal AI Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series D | Aug 6, 2024 | ||||
| Series C | May 10, 2022 | ||||
| Series B | Nov 18, 2020 | ||||
| Series A | Nov 19, 2019 | ||||
| Seed | Apr 16, 2018 |
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Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
BID | |||||
OFFER |
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Key People
Founding team and executive leadership
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Abnormal AI Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Series C |
| Human Capital | Series C |
| Greylock Partners | Series B, Series D, Series C, Series A, Seed |
| DRW Trading Group | Series B |
| Norwest Venture Partners | Series C |
| Sequoia Capital | Series C |
| The Syndicate Group | Series C |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 27, 2026
Company is growing over 40% year-over-year.
- Sep 1, 2026
Open roles increased to 131, 8% of headcount.
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Recent news
Latest coverage and updates
- hiresNov 4, 2026
Abnormal appoints Don Jeter as chief marketing officer on Nov 4th '26, with Jeter aiming to build the cybersecurity company into a household-name brand.
- receives_awardOct 5, 2026
FeaturedCustomers gave Abnormal the highest "Market Leader" award in its Fall 2026 Email Security Software Customer Success Report in Florida on Oct 5th '26, recognizing its substantial customer base and market share.
- launchesSep 25, 2026
On Sep 25th '26, Abnormal launches additions to its AI Security suite that help enterprises adopt AI securely and protect against new threats created or accelerated by AI, including AI Employee Guardrails, AI Agent Security, AI Security Workbench, generally available Abnormal AI Governance, and AI Cloud Security in private preview.
- launchesSep 8, 2026
Abnormal launches AI Cloud Security to detect and respond to risky or malicious AI-agent behaviour in cloud environments, with the product in private preview for selected customers on Sep 8th '26.
- launchesAug 28, 2026
Abnormal expands its email security platform with Control Centre for custom detection models and rules, Email DLP Rules for outbound data loss prevention, and upgrades to AI Phishing Coach on Aug 28th '26.
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Abnormal AI Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Appears On
Curated lists and screens where this company is featured.
Frequently Asked Questions
Common questions about Abnormal AI's valuation, stock price, and market status.
Is Abnormal AI a public or private company?
Abnormal AI is a private company.
What is the current stock price of Abnormal AI?
Abnormal AI is a private company, so its shares have no public market price. Caplight tracks Abnormal AI's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Abnormal AI worth (valuation)?
Abnormal AI's valuation is estimated at $5.1B based on funding round data.
Can I buy Abnormal AI stock?
Abnormal AI shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Abnormal AI's last funding round?
Abnormal AI's most recent funding round was Series D on August 6, 2024.
Who are the main investors in Abnormal AI?
Key investors in Abnormal AI include Greylock Partners, Wellington Management, Menlo Ventures, Insight Partners, True Ventures.
Will Abnormal AI IPO soon?
No public IPO plans have been announced for Abnormal AI.
How can I track Abnormal AI secondary market activity?
Caplight tracks bids, offers, and trades in Abnormal AI's shares on secondary markets.