Halcyon stock
Private-market facts for current and former Halcyon employees researching their stock.
Overview
Cybersecurity company focused exclusively on anti-ransomware protection, providing prevention, detection, and recovery solutions.
Halcyon outlook
For employees evaluating Halcyon equity, a 2x base multiple suggests limited near-term upside at current levels. The upside scenario at 3x is relatively close to the base case, suggesting more predictable but narrower range of outcomes.
These estimates reflect modeled return scenarios, not guaranteed outcomes. Actual results depend on company performance, market conditions, share class, and timing.
Selling Halcyon shares
Why shareholders consider selling
Shareholders in Halcyon may explore liquidity for a number of reasons — diversifying a concentrated position, funding a personal financial goal, or simply reducing exposure to a single private holding. As a private company, Halcyon does not trade on a public exchange, meaning employees and early shareholders cannot simply sell through a brokerage. Extended private timelines can leave shareholders waiting years for an exit event, which is why some choose to explore secondary-market options.
Can you sell Halcyon stock?
Whether a shareholder can sell typically depends on what they hold and how it was acquired. Vested and exercised shares are generally more straightforward than unexercised options or unvested RSUs. Most private companies, including those in the Cybersecurity sector, impose transfer restrictions such as rights of first refusal or board approval requirements. The specific terms governing Halcyon shares would be outlined in the holder's equity agreement or the company's governing documents.
What affects the value of Halcyon shares?
The price a buyer is willing to pay for private shares is shaped by several factors: overall demand for the stock, the company's financial performance, broader Cybersecurity market conditions, and any recent private-market transaction activity. Data points such as the company's Series C round and its reported $1B valuation can help frame expectations, though they do not guarantee a transaction price.
What should holders check before selling
- The type of security held (common shares, preferred, options, RSUs)
- Whether the equity is fully vested and, for options, whether it has been exercised
- Any transfer restrictions, lock-up provisions, or company approval requirements
- Estimated net proceeds after applicable taxes and transaction fees
- Whether partial liquidity — selling a portion rather than the full position — may be a better fit
Tools for Halcyon shareholders
Exploring equity in Halcyon often raises questions about taxes, exercise timing, valuation, and exit outcomes. These tools can help you model different decisions using your own assumptions.
Latest funding round
Halcyon most recently raised a Series C round in June 2024. The company was valued at $1B. Total funding raised to date is approximately $140M.
Lead investors in this round include SYN Ventures and Corner Ventures.
Founders & company background
Halcyon was founded in 2021 by Jon Miller, Ryan Smith and is headquartered in Austin, TX.
Investors
Industry
Similar private companies
Latest Halcyon news


Frequently asked questions
- Is Halcyon still a private company?
- Yes, Halcyon is currently a private company.
- What is Halcyon's latest funding round?
- Halcyon's most recent known round is Series C, raised in June 2024.
- What is Halcyon's valuation?
- Halcyon's latest reported valuation is $1B.
- Who are the investors in Halcyon?
- Notable investors include SYN Ventures, Corner Ventures.
- Can I sell my Halcyon stock?
- Private company shares can sometimes be sold on secondary markets. Speaking with a specialist who understands Halcyon stock can help you evaluate your options.
Related pages
Last verified: 2026-04-13 · Halcyon data compiled from funding disclosures, investor announcements, corporate filings, and public records.
Information on this page is compiled from publicly available sources and may be outdated or incomplete. This is not investment advice. Consult a qualified advisor before making financial decisions.