Abnormal Security is a Cybersecurity founded in 2018, currently valued at $5.1B. IPO Status: S-1 Filed in May 2026. IPO Readiness Score: 81/100 (B+).
Abnormal Security IPO status, timeline, valuation and S-1 filing tracker. Last updated May 2026.
| Industry | Cybersecurity |
| Stage | Pre-IPO |
| IPO Status | Private |
| Valuation | $5.1B |
| Total Funding | $620M |
| Headquarters | San Francisco, CA |
| IPO Readiness Score | 81/100 |
| Founded | 2018 |
Track Abnormal Security IPO status, valuation updates, and S-1 filing milestones on TechStackIPO. Last updated May 2026.
AI-native email security platform using behavioral AI to stop advanced phishing and business email compromise.
Abnormal Security has filed an S-1 registration statement with the SEC in May 2026, signaling active preparation for a public listing. Companies that reach the S-1 filing stage typically price their IPO within 3–6 months of filing, though market conditions, regulatory review, and investor demand can affect the timeline. TechStackIPO monitors all S-1 amendments, pricing updates, and roadshow activity for Abnormal Security.
Abnormal Security is valued at $5.1B based on the most recent private market data. The company has raised a total of $620M in funding. Private market valuations are determined by the latest funding round and may differ from eventual IPO pricing, which reflects public market conditions, investor demand, and comparable company multiples at the time of listing.
Accredited investors may be able to access Abnormal Security pre-IPO shares through secondary market platforms. These platforms facilitate private share transactions between existing shareholders (employees, early investors) and new buyers.
Risk factors: Pre-IPO investments are illiquid, carry higher risk than public market investments, and are typically restricted to accredited investors. Share availability and pricing depend on current shareholders willing to sell. TechStackIPO provides data and tracking tools but does not facilitate or recommend investments.
Funding rounds from seed through latest — Series A, B, C and beyond.
| Round | Date | Amount | Valuation | Lead Investor(s) |
|---|---|---|---|---|
| Seed | Nov 2018 | $8M | $50M | Greylock Partners |
| Series A | Sep 2019 | $24M | $200M | Greylock Partners, Menlo Ventures |
| Series B | May 2021 | $70M | $900M | Insight Partners, Greylock Partners |
| Series C | May 2022 | $210M | $4B | Insight Ventures, Greylock Partners |
| Series D | May 2024 | $250M | $5.1B | Wellington Management, Greylock Partners |
Total funding raised: $620M
Bear / base / bull scenarios based on current private market valuation and comparable IPO multiples.
| Scenario | Est. Valuation | Basis |
|---|---|---|
| Bear | $3.8B | Compressed multiples, delayed listing |
| Base | $5.1B | Last private round valuation |
| Bull | $7.1B | Strong market, premium AI/tech multiple |
Estimates are illustrative. Not investment advice. All figures based on publicly available data.
Abnormal Security has an IPO readiness score of 81/100 on TechStackIPO. A high readiness score suggests IPO activity could occur within the next 1–2 years.
Abnormal Security's last known private valuation is $5.1B. IPO valuations typically reflect current market conditions at time of listing and may differ from private market valuations.
Pre-IPO access options may include: (1) secondary market platforms such as Forge Global or EquityZen that facilitate private share sales, (2) ETFs holding pre-IPO companies or venture portfolios, and (3) direct secondary share purchases if eligible as an accredited investor. TechStackIPO tracks availability but does not facilitate investments.
Yes. Abnormal Security has filed an S-1 registration statement with the SEC on May 1, 2026.
Abnormal Security operates in the Cybersecurity sector. TechStackIPO tracks multiple Cybersecurity companies from seed through IPO, including their funding rounds, valuations, and IPO readiness scores. You can compare Abnormal Security against other Cybersecurity companies using TechStackIPO's comparison tool.
Abnormal Security is at the Pre-IPO stage. The company has raised a total of $620M in funding. Companies at this funding stage are typically scaling operations, expanding market share, and evaluating public market timing.
Abnormal Security is headquartered in San Francisco, CA. The company's location can influence IPO exchange selection, regulatory requirements, and investor interest. Companies headquartered in major tech hubs often benefit from proximity to venture capital networks and talent pools.