ProLogium stock
Private-market facts for current and former ProLogium employees researching their stock.
Overview
ProLogium Technology develops solid-state lithium ceramic batteries for electric vehicles and consumer electronics with improved safety and energy density.
Selling ProLogium shares
Why shareholders consider selling
Shareholders in ProLogium 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, ProLogium 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 ProLogium 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 Clean Energy & Climate sector, impose transfer restrictions such as rights of first refusal or board approval requirements. The specific terms governing ProLogium shares would be outlined in the holder's equity agreement or the company's governing documents.
What affects the value of ProLogium 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 Clean Energy & Climate market conditions, and any recent private-market transaction activity. Data points such as the company's Series D 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 ProLogium shareholders
Exploring equity in ProLogium 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
ProLogium most recently raised a Series D round . The company was valued at $1B. Total funding raised to date is approximately $800M.
Lead investors in this round include SoftBank Vision Fund and Samsung SDI.
Founders & company background
ProLogium was founded in 2006 by Vincent Yang and is headquartered in Taoyuan, Taiwan.
Investors
Industry
Similar private companies
Latest ProLogium news
Frequently asked questions
- Is ProLogium still a private company?
- Yes, ProLogium is currently a private company.
- What is ProLogium's latest funding round?
- ProLogium's most recent known round is Series D.
- What is ProLogium's valuation?
- ProLogium's latest reported valuation is $1B.
- Who are the investors in ProLogium?
- Notable investors include SoftBank Vision Fund, Samsung SDI.
- Can I sell my ProLogium stock?
- Private company shares can sometimes be sold on secondary markets. Speaking with a specialist who understands ProLogium stock can help you evaluate your options.
Related pages
Last verified: 2026-04-13 · ProLogium 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.