-90%

est. 2Y upside i

CybersecuritySeries C

AI-powered email security platform for preventing human-caused breaches

Rank

#4370

Sector

Cybersecurity

Est. Liquidity

~0Y

Data Quality

Data: Medium

The offer of Tessian equity at a $500M valuation is highly problematic and carries severe risk.

Last updated: March 10, 2026

Bull (5%)0%

While highly improbable for Tessian equity post-acquisition, this scenario assumes a highly favorable, undisclosed acquisition term for common shareholders, resulting in no loss of value relative to the $500M pre-acquisition valuation, effectively a 0% return.

Base (15%)-45%

Proofpoint acquired Tessian for an estimated value at the higher end of the reported range (e.g., $415M). After accounting for approximately $133M in liquidation preferences, common shareholders realize a significant loss, with equity valued at roughly $282M, representing a -45% return from the $500M valuation.

Bear (80%)-70%

Proofpoint acquired Tessian for an estimated value at the lower end of the reported range (e.g., $307M). Given the $133M in liquidation preferences, common shareholders receive approximately $174M, resulting in a substantial -70% loss from the $500M valuation.

Est. time to liquidity~0.0 years
Adjusted for competitive dynamics: -93% (raw: -90%, adjustment: -30%)

Preference Stack Risk

high

Funding Intensity

27%

Investors held $133M in liquidation preferences against a $500M valuation, representing 26.6% of the company's value.

Dilution Risk

low

Dilution risk is no longer applicable as Tessian has been acquired and its independent equity no longer exists.

Secondary Liquidity

none

There is no secondary market for Tessian equity as the company has been acquired.

Other 1 role

View all 1 open roles at Tessian

Last updated: February 17, 2026

Questions to Ask at the Interview

Strategic questions based on Tessian's data — designed to show you've done your homework.

  • 1

    Given Tessian's acquisition by Proofpoint, what specific equity package is being offered, and is it Proofpoint equity or a legacy Tessian equity structure? What are the terms of this equity?

  • 2

    How has Tessian's product roadmap and team structure evolved since the acquisition, and what is the long-term vision for Tessian's technology within Proofpoint's broader portfolio?

  • 3

    Can you provide details on the integration process of Tessian into Proofpoint, particularly regarding cultural alignment and career growth opportunities for former Tessian employees?

Cluster Peers

Community

Valuation Sentiment

Our model estimates -90% upside. What do you think?

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Disclaimer: This analysis is AI-generated and does not constitute financial or career advice. Always conduct your own due diligence.