Abnormal Security Corp
Other · San Francisco, California
Abnormal Security Corp is a other company based in San Francisco, California, incorporated in 2018. It has raised at least $532.6 million across 6 known rounds, of which $282.6 million was reported to the SEC on 5 Form D filings, most recently in 2022.
Abnormal AI is a behavioral AI security platform that protects email, identity, and AI—and stops insider threats. Trusted by 4,500+ organizations.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2024-08-06 | Series D | $250.0M | $532.6M | Wellington Management | Round pagesource ↗ |
| 2022-05-10 | —+1 amd | $209.7M | $282.6M | SEC Form D | |
| 2021-01-12 | —+1 amd | $50.5M | $73.0M | SEC Form D | |
| 2019-12-05 | — | $22.5M | $22.5M | SEC Form D |
SEC rows are Form D filings, where the amount is what was actually sold and amendments update a round rather than adding one. Press rows are split between company-issued releases or wires and editorial or third-party coverage. The total is therefore a floor: a round nobody reported is a round we cannot see. A buyout or control change appears in the timeline but is never added to the total: that money goes to shareholders, not into the company.
Firms whose own published portfolio pages list this company.
Form D is the notice a company files with the SEC when it sells securities without registering them. It reports the amount sold, not a valuation. Figures here are what the filing says. Where a filing is silent, the field is left blank rather than estimated. “Total raised” adds press-reported rounds that never appear in a filing, so it is a floor rather than an audited sum: press amounts are the figures the company announced, and a round nobody reported is a round we cannot see.