PsiQuantum stock $38.72 USD

Private-market facts for current and former PsiQuantum employees researching their stock.

Latest Round
Series D
Valuation
$7B
Founded
2016
Headquarters
Palo Alto, CA
Founders
Jeremy O'Brien, Terry Rudolph, Mark Thompson, Pete Shadbolt
Status
private
Employees
606 +27% YoY
Total Raised
$665M

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

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Overview

PsiQuantum is building a fault-tolerant, photonic quantum computer using silicon photonics manufactured in standard semiconductor fabs.

PsiQuantum outlook

Equity outlook95% data confidence
1x
Base scenario
1x
Upside scenario

For employees evaluating PsiQuantum equity, a 1x base multiple suggests the stock may be close to fairly valued at current prices.

These estimates reflect modeled return scenarios, not guaranteed outcomes. Actual results depend on company performance, market conditions, share class, and timing.

Illustrative model · v1.0.0 · Not investment advice

Selling PsiQuantum shares

Why shareholders consider selling

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

What affects the value of PsiQuantum 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 Semiconductors & Hardware market conditions, and any recent private-market transaction activity. Data points such as the company's Series D round, its reported $7B valuation and recent secondary-market pricing can help frame expectations, though they do not guarantee a transaction price.

What should holders check before selling

Tools for PsiQuantum shareholders

Exploring equity in PsiQuantum 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

PsiQuantum most recently raised a Series D round in May 2024. The company was valued at $7B. Total funding raised to date is approximately $665M.

Lead investors in this round include BlackRock and Baillie Gifford.

PsiQuantum funding history

Series C 2020
$150M
Series D 2021
$450M
Venture Round 2024
$617M
Venture Round 2025
$22M
Series E 2025
$1.0B
Date Round Amount Lead investors
Jan 2026 Venture Round OGBC Group
Sep 2025 Series E $1.00B Temasek Holdings, BlackRock, Baillie Gifford
May 2025 Venture Round $22M
Nov 2024 Secondary Market
Apr 2024 Venture Round $617M Queensland Government, Australian Government
Apr 2024 Grant Queensland Government, Australian Government
Apr 2024 Debt Financing Queensland Government, Australian Government
Jul 2021 Series D $450M BlackRock
May 2021 Series C
Apr 2020 Series C $150M Atomico

PsiQuantum IPO & exit outlook

PsiQuantum has not announced a confirmed IPO date or acquisition. As a Series D-stage company valued at $7B, PsiQuantum is at a maturity level where companies sometimes begin exploring public-market readiness — though many remain private for years beyond this point. Founded 2016, PsiQuantum has been private for 10 years.

For employees holding equity, the timeline to liquidity is uncertain. Options to consider include:

  • Secondary-market sales — selling vested shares to outside buyers (secondary pricing is currently available for this company)
  • Company-sponsored tender offers — periodic buyback programs some late-stage companies run
  • Early exercise and 83(b) elections — strategies to reduce future tax exposure while waiting for liquidity

Read our liquidity guide for a full comparison of paths to liquidity.

Founders & company background

PsiQuantum was founded in 2016 by Jeremy O'Brien, Terry Rudolph, Mark Thompson, Pete Shadbolt and is headquartered in Palo Alto, CA.

Investors

Industry

Similar private companies

Latest PsiQuantum news

Talk to a PsiQuantum stock specialist

Get personalized guidance on your PsiQuantum shares — including current market activity, pricing context, and liquidity options.

Speak with an expert

Frequently asked questions

Is PsiQuantum a public or private company?
PsiQuantum is a private company as of the most recent data available. Its shares do not trade on a public stock exchange. Employees and early shareholders who want liquidity may need to explore secondary-market options or wait for a future IPO or acquisition.
What is PsiQuantum's valuation?
PsiQuantum's latest reported valuation is $7B, set during its Series D round in May 2024. This is the preferred-stock valuation — the price per share that employees hold (common stock) is typically lower due to the liquidation preference stack. See our glossary entries on pre-money valuation and common stock for more detail.
What is PsiQuantum's stock price per share?
The most recent secondary-market price for PsiQuantum stock is approximately $38.72 per share, as of May 2026. This is an indicative price based on observed secondary-market activity — actual transaction prices may vary depending on share class, volume, and transfer restrictions.
When will PsiQuantum IPO?
PsiQuantum has not announced a confirmed IPO date. As a Series D-stage company valued at $7B, PsiQuantum is at a stage where companies sometimes begin evaluating public-market readiness. IPO timing depends on market conditions, company financials, and board decisions. Employees should plan around the possibility that liquidity may take years and consider whether secondary-market options or company-sponsored tender offers are available in the interim.
Can I sell my PsiQuantum stock?
It depends on what you hold and your company's policies. Vested, exercised shares are generally eligible for secondary-market sales, subject to PsiQuantum's transfer restrictions and right of first refusal (ROFR). Unexercised options and unvested RSUs typically cannot be sold. Some companies also run periodic tender offers that allow employees to sell a portion of their holdings at a set price. Check your equity agreement or speak with your stock plan administrator for PsiQuantum-specific rules.
How much does it cost to exercise PsiQuantum stock options?
The out-of-pocket cost equals your strike price multiplied by the number of shares you exercise. For ISOs, exercising may also trigger the Alternative Minimum Tax (AMT) based on the spread between your strike price and the current fair market value. For NSOs, the spread is taxed as ordinary income at exercise. Use our AMT Calculator and Stock Option Tax Calculator to model the cost for your specific situation.
What type of stock options does PsiQuantum grant — ISOs or NSOs?
Most venture-backed companies grant ISOs (Incentive Stock Options) to U.S. employees where possible, with NSOs (Non-Qualified Stock Options) used for amounts exceeding the $100K annual ISO limit, for contractors, or for non-U.S. employees. Your specific grant type is listed in your option agreement. The distinction matters because ISOs can qualify for long-term capital gains treatment, while NSOs are taxed as ordinary income at exercise. See our ISO guide and NSO guide for the full breakdown.
What happens to my PsiQuantum stock if the company is acquired?
In an acquisition, your equity outcome depends on the deal structure and your grant terms. Common scenarios include cash-out (your shares are bought at a set price per share), rollover (your shares convert into the acquirer's equity), or cancellation with an acceleration clause. If you have double-trigger acceleration, your unvested shares may accelerate only if you are also terminated. The liquidation preference stack determines how proceeds are divided — preferred shareholders are paid first, which can reduce or eliminate the payout to common shareholders in lower-value exits.
What is the difference between common and preferred PsiQuantum stock?
Employees typically hold common stock (or options on common stock). Investors hold preferred stock, which usually comes with a liquidation preference — meaning investors get paid first in an exit before common shareholders receive anything. PsiQuantum's $7B headline valuation reflects the preferred-stock price. The fair market value of common shares (used for your 409A and strike price) is typically 25–50% lower. This distinction is critical when estimating what your shares might actually be worth in an exit.
What happens to my PsiQuantum options if I leave?
When you leave a company, you typically have a limited post-termination exercise window — often 90 days — to exercise your vested options or they expire worthless. Some companies offer extended windows (up to 10 years). Unvested options are forfeited. If you hold ISOs and don't exercise within 90 days of leaving, they convert to NSOs, which changes the tax treatment. Review your option agreement for PsiQuantum's specific terms, and use our Exercise Timing Planner to model the financial tradeoffs.

Related pages

Last verified: 2026-05-28 · PsiQuantum 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.