Colossal Laboratories & Biosciences stock $15.75 USD

Private-market facts for current and former Colossal Laboratories & Biosciences employees researching their stock.

Latest Round
Series B
Valuation
$10B
Founded
2021
Headquarters
Dallas, TX
Founders
Ben Lamm, George Church
Status
private

Price per share sourced from public secondary-market data. Updated April 2026. Indicative only — not a live quote.

Talk to a Colossal Laboratories & Biosciences stock specialist

Get personalized guidance on your Colossal Laboratories & Biosciences shares — including current market activity, pricing context, and liquidity options.

Speak with an expert

Overview

Colossal Biosciences uses gene editing and synthetic biology to de-extinct species like the woolly mammoth and the dodo, while developing applications of its technology for conservation and human healthcare.

Selling Colossal Laboratories & Biosciences shares

Why shareholders consider selling

Shareholders in Colossal Laboratories & Biosciences 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, Colossal Laboratories & Biosciences 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 Colossal Laboratories & Biosciences 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 Healthcare & Biotech sector, impose transfer restrictions such as rights of first refusal or board approval requirements. The specific terms governing Colossal Laboratories & Biosciences shares would be outlined in the holder's equity agreement or the company's governing documents.

What affects the value of Colossal Laboratories & Biosciences 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 Healthcare & Biotech market conditions, and any recent private-market transaction activity. Data points such as the company's Series B round, its reported $10B valuation and recent secondary-market pricing 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 Colossal Laboratories & Biosciences shareholders

Exploring equity in Colossal Laboratories & Biosciences often raises questions about taxes, exercise timing, valuation, and exit outcomes. These tools can help you model different decisions using your own assumptions.

AMT Calculator
If your Colossal Laboratories & Biosciences equity includes ISOs, this calculator can help estimate how many shares you may be able to exercise before AMT becomes a factor.
Open tool →
Exercise Timing Planner
For Colossal Laboratories & Biosciences shareholders weighing whether to exercise options now or wait for a future liquidity event, this planner helps compare the tax and financial tradeoffs.
Open tool →
Stock Option Tax Calculator
Estimate the tax impact of exercising or receiving Colossal Laboratories & Biosciences equity, whether you hold ISOs, NSOs, or RSUs.
Open tool →
Exit Calculator
With Colossal Laboratories & Biosciences's reported $10B valuation as a reference point, model how different exit outcomes could affect your net proceeds after exercise costs and estimated taxes.
Open tool →
Equity Planner
Model different strategies for your Colossal Laboratories & Biosciences equity — exercise now vs later, hold vs sell, and different upside and downside scenarios.
Open tool →
Private Market Insights
For a private company like Colossal Laboratories & Biosciences, valuation can look different depending on whether you use 409A, secondary activity, last-round pricing, or public healthcare & biotech comps. This tool helps compare those approaches.
Open tool →
Equity Compensation Calculator
Evaluating an offer from Colossal Laboratories & Biosciences alongside other opportunities? This tool helps compare salary, bonus, and equity packages in one place.
Open tool →

Latest funding round

Colossal Laboratories & Biosciences most recently raised a Series B round . The company was valued at $10B. Total funding raised to date is approximately $235M.

Lead investors in this round include Breyer Capital and In-Q-Tel.

Founders & company background

Colossal Laboratories & Biosciences was founded in 2021 by Ben Lamm, George Church and is headquartered in Dallas, TX.

Investors

Industry

Similar private companies

Talk to a Colossal Laboratories & Biosciences stock specialist

Get personalized guidance on your Colossal Laboratories & Biosciences shares — including current market activity, pricing context, and liquidity options.

Speak with an expert

Frequently asked questions

Is Colossal Laboratories & Biosciences still a private company?
Yes, Colossal Laboratories & Biosciences is currently a private company.
What is Colossal Laboratories & Biosciences's latest funding round?
Colossal Laboratories & Biosciences's most recent known round is Series B.
What is Colossal Laboratories & Biosciences's valuation?
Colossal Laboratories & Biosciences's latest reported valuation is $10B.
Who are the investors in Colossal Laboratories & Biosciences?
Notable investors include Breyer Capital, In-Q-Tel.
Can I sell my Colossal Laboratories & Biosciences stock?
Private company shares can sometimes be sold on secondary markets. Speaking with a specialist who understands Colossal Laboratories & Biosciences stock can help you evaluate your options.

Related pages

Last verified: 2026-04-13 · Colossal Laboratories & Biosciences 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.