Delivers rapidly iterated, mass-producible strike weapons systems designed to restore technological advantage through affordable, scalable manufacturing.
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Highest Bid
$ 260.80
Lowest Offer
$ 188.50
Last Trade
$ 234.00
Live Orders
1,298
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Overview
Castelion is a defense manufacturing company that designs, builds, and mass-produces advanced strike systems with a focus on affordability, rapid iteration, and scale. It leans into hardware-rich development, tightly-controlled vertically integrated manufacturing, and frequent testing to cut down cycle times and costs while delivering hypersonic and strike capabilities for deterrence.
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Castelion Management Team
Castelion Valuations & Financials
View real-time NPM data on Castelion stock including daily Castelion stock price estimates, valuation history, and historical share price information. Access Castelion financing rounds, secondary trade levels, cap table data, and private company comparable transactions. Use NPM's private company valuation database to track Castelion pricing across six independent market signals. Looking for private company due diligence data sources on Castelion? Get in touch to learn more.
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Castelion stock does not trade on public stock exchanges. Castelion stock is considered a private security and you need to be an accredited investor to trade shares. To invest in Castelion stock you can either buy shares directly through the company or work with a secondary trading marketplace like Nasdaq Private Market.
Learn more about the secondary market for private company shares on the investors page.
Castelion Stock does not trade on public stock exchanges. In order to sell Castelion shares you need to work directly with the company or with a secondary trading marketplace like Nasdaq Private Market. NPM has more than a decade of experience helping sell shares on the private market to our network of institutional investors.
Learn more about NPM services for selling privately held stock on the Employee Shareholders page.
Read more about how to sell private company stock on the private secondary market:
Nasdaq Private Market estimates that Castelion price per share was $134.56 as of June 25, 2026. This Castelion share value estimate (known as the NPM price) is based on market activity, publicly-sourced valuation data, and other proprietary information. With NPM Data and Intelligence premium for investors, you can get visibility into the Castelion share price today and the factors driving Castelion valuation estimates. Learn more about premium data here.
Read more about private company stock prices: Understanding the Bid-Ask Spread: How Buyers and Sellers Match on Price
There is no ticker symbol for Castelion stock because it is a private company. Private companies do not have ticker symbols like public companies, they are identified primarily by using the company ‘street’ name or legal name.
Nasdaq Private Market currently works with employees, ex-employees, and other company investors. In order to sell Castelion stock you need to receive the company’s approval, which Nasdaq Private Market manages on your behalf.
Learn more about selling privately held stock on the Employee Shareholders page.
Read more about how to sell shares of a private company and eligibility for selling privately held stock:
Currently, Nasdaq Private Market only works with accredited entities and institutional investors to purchase private company stock. In order to invest in Castelion stock, you need to be an accredited entity or institutional investor.
Learn more about the Nasdaq Private Market tool kit for investors on the Investor Trading page.
Once you buy or sell, stock share ownership must transfer before funds are wired. With Nasdaq Private Market, clients leverage our patent-pending Transfer and Settlement technology which streamlines and manages transfer activity from match to settlement.
To learn more about private company stock Transfer and Settlement, check out the Transfer and Settlement page.
Castelion is a private company and has not had an IPO. There is currently no Castelion IPO price. Get started to begin exploring the Nasdaq Private Market Data and Intelligence database and gain access to actionable data related to Castelion IPO.
Learn more about Data and Intelligence private company stock data for institutional investors on the on the NPM Data and Intelligence Product Page.
