November 9, 2026 · 7 min read
Private Company vs Public Company: Key Differences Explained
Why some companies sell shares to anyone and others keep them in a few hands. What each means for the people who work there or invest.
- Private markets & secondaries
Public vs private company comes down to who can buy the shares. A public company sells shares to anyone, usually on a stock exchange, and must report to the SEC. A private company’s shares are held by founders, staff and chosen investors and do not trade publicly. Young and fast-growing companies tend to stay private. Companies that need wide access to capital go public.
If you work at a startup or invest in one, you own private shares. They can be hard to sell, and you see less about the business. Public shares can be sold on any trading day, and the company’s numbers are public. Many technology companies now stay private for about a decade or more.
2,000
Holders of record, or 500 who are not accredited, that force a private company with over $10M in assets to report
11 years
Median age of a technology company when it lists
176
US IPOs in 2025, raising $44B in total
$159B
Stripe’s valuation after a tender offer, still as a private company
Private Company vs Public Company: What Is the Difference?
The public vs private company difference shows up in who owns the shares, what the company must disclose and how easily owners can sell. The table compares the two on definition, who uses each, legal and tax treatment, risk, liquidity and a typical example.
A private company controls who owns it and what it discloses. A public company gives up that control in exchange for an open market in its shares
As of November 2026 · SEC Exchange Act reporting page (09.22.2025); 15 U.S.C. 78l; 26 U.S.C. 11; CNBC (02.24.2026, 06.11.2026). US rules.
What Makes a Company Public in the US?
The public vs private company meaning has nothing to do with government ownership. In the US, a company becomes public when its shares are registered with the SEC. That usually happens through an IPO or a direct listing on a stock exchange. Listing on a US exchange triggers registration (SEC).
A company can also be forced to register without listing. That happens once it has more than $10 million in assets and 2,000 holders of record, or 500 who are not accredited investors. Employees who got their shares through a company stock plan do not count toward that number (15 U.S.C. 78l). That rule lets startups grant equity to staff and still stay private.
Once public, the company files a yearly report on Form 10-K and quarterly reports on Form 10-Q. The CEO and CFO certify both. Major events go on Form 8-K, often within four business days. Shareholder votes follow the SEC’s proxy rules. A private company has none of these duties. What it tells its investors is set by contract.
Public vs Private Company Examples: Stripe, Anthropic and SpaceX
Several companies valued in the hundreds of billions stayed private for years. Recent cases show both paths.
- Stripe, privateValued at $159 billion after a tender offer in February 2026, in its sixteenth year as a private company (CNBC, 2026). A tender offer let staff and early investors sell some shares without a listing.
- Anthropic, privateRaised its Series H at a $965 billion valuation after the money came in, on May 28, 2026 (Anthropic). Four days later it confidentially filed an IPO prospectus with the SEC (CNBC, 2026).
- SpaceX, publicPriced its IPO on June 11, 2026, at a $1.77 trillion valuation and began trading on Nasdaq (CNBC, 2026). Its shares moved from a private market to a public one overnight.
Staying private longer is now normal. The median technology company lists about 11 years after it was founded (Ritter, 2025). In the year to mid-2025, secondary sales of venture-backed shares reached $61.1 billion. That beat the $58.8 billion raised in venture-backed IPOs (Carta, 2025).
Public vs Private Company in Australia: Proprietary and Public Companies
Australia draws the line differently. A private company there is called a proprietary company. It can have no more than 50 members who are not employees, and it cannot offer shares to the public (ASIC). ASIC is Australia’s company and markets regulator.
Any other company is a public company. It can generally offer shares to the public, with no cap on members. Only a listed public company offers its shares on the Australian Securities Exchange (ASX) (ASIC). So in Australia a public company can be unlisted. In the US, “public company” usually means one that reports to the SEC.
Public vs Private Company Benefits for Founders, Staff and Investors
- Private: control and focusFounders choose their investors, keep numbers confidential and avoid quarterly reporting. They can plan for the long term without a daily share price.
- Private: access for insidersEmployees and early backers can buy in at early prices. Their gains, if any, build before the company lists.
- Public: money and liquidityThe company can raise from anyone, use its shares to pay for deals and give staff a way to sell.
- Public: information for investorsOwners see audited numbers on a set timetable and can sell on any trading day.
Both kinds of company use equity compensation to pay staff. At a private company, that equity has a price set by a 409A valuation. At a public company, the market sets it.
Public vs Private Company Pros and Cons: A Verdict on Each
Private Company
- For
- Control over owners and disclosure. Lower compliance costs. Room to grow without quarterly pressure.
- Against
- Hard for owners to sell. Less public information. Capital comes only from chosen and qualified investors.
Verdict: staying private suits a company that can fund itself from private rounds and wants to control its story. For its owners, the cost is waiting. Shares usually turn into cash only at a tender offer, a sale of the company or a listing.
Public Company
- For
- Access to public capital. Shares that trade every day. A clear market price for staff equity and deals.
- Against
- Ongoing reporting and costs. Public scrutiny of every quarter. Prices that react to news and markets.
Verdict: going public suits a company that needs wide access to capital and wants its owners to be able to sell. It trades privacy for liquidity. For an investor, it means more information and an exit on any trading day.
A private company keeps control and keeps its owners waiting. A public company opens its books and gives its owners a market. Many companies now spend a decade or more on the private side.
What Public and Private Companies Mean for You
The public and private company difference matters most when you want to sell. Shares of a public company go through a broker in seconds. Private shares need the company’s approval and a buyer. Even after a listing, restricted shares follow Rule 144, with a holding period of six months or one year (17 CFR 230.144), plus any lock-up.
To invest in a private company, you usually need to be accredited: net worth above $1 million without your home, or income above $200,000 ($300,000 with a spouse) (Rule 501). Axevil gives access through a separate Delaware SPV for each deal, managed by Axevil Capital, LLC. For the stage just before a listing, see what a pre-IPO company is.
Common Mistakes
- Reading public as government-ownedA public company is owned by its shareholders. “Public” refers to who can buy the shares.
- Assuming private means smallStripe and Anthropic were valued in the hundreds of billions while private.
- Expecting to sell private shares on demandA sale needs company approval and a buyer. Tender offers come on the company’s timetable.
- Mixing US and Australian termsAn Australian public company can be unlisted. In the US, public usually means SEC reporting.
How Public and Private Companies Are Taxed
Tax works the same way for a public and private company. Every US corporation pays federal income tax at 21% of taxable income (26 U.S.C. 11). Shareholders pay tax on dividends and on gains when they sell. A gain on shares held more than one year is long term (26 U.S.C. 1222).
Some rules matter more in private companies. Startup stock can qualify for QSBS, a federal break on gains, if the company and the holding meet the tests. Employee options carry their own rules, explained in ISO vs NSO. Get advice on your own case.
The Terms This Page Uses
- Public company
- In the US, a company with shares registered with the SEC that files public reports, usually listed on an exchange.
- Private company
- A company whose shares are not sold to the public or traded on an exchange.
- IPO
- An initial public offering, the first sale of a company’s shares to the public.
- Holder of record
- An owner listed on the company’s books, counted for the 2,000-holder reporting trigger.
- Form 10-K
- The yearly report a public company files with the SEC.
- Proxy rules
- SEC rules on how a public company asks shareholders to vote.
- Tender offer
- An offer to buy shares from many holders at a set price, often run by the company.
- Proprietary company
- An Australian private company with no more than 50 non-employee members and no offers to the public.
- Accredited investor
- A person or entity that meets the SEC’s income or wealth tests for private offerings.
- Lock-up
- A contract that bars insiders from selling for a period after an IPO.
What People Ask About Private and Public Companies
Yes. Founders, employees and investors all own shares. The shares just do not trade on a public market.
Yes. A buyer, such as a private equity fund, can buy all the public shares and take the company off the exchange. Its shares then stop trading publicly.
No. A public company is owned by its shareholders. Government-owned firms are a separate category.
No. A US corporation pays 21% federal tax whether it is public or private. Tax depends on the company’s legal form and profits.
Usually through a private round, a fund or an SPV. Most offerings require you to be accredited, and the shares can be hard to sell for years.
Where Every Figure on This Page Comes From
Figures and rules were last checked on November 9, 2026. Rules described are US federal rules unless Australia is named. Valuations are as reported by the sources on the dates shown.
- 01US Securities and Exchange Commission09.22.2025Exchange Act reporting and registration: 12(g) thresholds, listing trigger, Forms 10-K, 10-Q, 8-K, proxy rules
- 02Cornell LII · 15 U.S.C. 78lCurrent statuteSection 12(g): $10M assets, 2,000 holders or 500 non-accredited, employee plan holders excluded
- 03Cornell LII · 26 U.S.C. 11Current statuteCorporate income tax at 21%
- 04Cornell LII · 26 U.S.C. 1222Current statuteShort-term and long-term capital gains, the one-year line
- 05Cornell LII · 17 CFR 230.144Current ruleRule 144 holding periods: six months or one year
- 06Cornell LII · 17 CFR 230.501Current ruleAccredited investor net worth and income tests
- 07Australian Securities and Investments Commission2026Glossary: proprietary company, no more than 50 non-employee members
- 08Australian Securities and Investments Commission2026Glossary: public company, offers to the public, listed on the ASX
- 09CNBC02.24.2026Stripe valued at $159B after a tender offer, in its sixteenth year as a private company
- 10Anthropic05.28.2026Series H: $965B post-money valuation
- 11CNBC06.01.2026Anthropic confidentially files an IPO prospectus with the SEC
- 12CNBC06.11.2026SpaceX prices its IPO ahead of its Nasdaq debut, at a $1.77T valuation
- 13Jay R. Ritter, University of Florida2025 updateIPOs: Age of Companies Going Public, median technology company about 11 years old
- 14Renaissance Capital12.20252025 US IPO Market Review: 176 listings, $44B raised
- 15CartaQ2 2025VC secondary trends: $61.1B of secondary volume against $58.8B raised in venture-backed IPOs
This page explains how a market works. It is not investment advice, not a recommendation of any security, strategy or company, and not an offer to sell or a solicitation to buy anything. Private companies may never list or be acquired, positions in them can be illiquid for years, and the entire amount invested can be lost. Figures are accurate as of the dates shown and change. Requirements for investor status, and the tax treatment of a private holding, differ by jurisdiction — the jurisdiction is named wherever this page discusses either. Prepared by the AXEVIL Capital research team.
What closed on the private market in the past two weeks
The rounds that priced, the tender offers that opened and the listings that filed — with the structure of each deal and the date on every figure. Written by the team that reads the paperwork.
Where to go from here
Pre-IPO basicsWhat Is a Pre-IPO Company? Definition, Stage and SignalsA pre-IPO company is a late-stage private company expected to list within one to three years. What the stage means, the signs to watch and real examples.
IPOs & listingsWhat Is an IPO (Initial Public Offering)? How It Works and ExamplesPublic IPO meaning: a private company’s first sale of shares to the public on a stock exchange. The steps, who sets the price and what changes for holders.
Private markets & secondariesWhat Is Private Company Stock? How Shares in a Private Company WorkYes, private companies have stock. How private shares are issued, priced, granted to employees and sold, with the SEC and Delaware rules as of October 2026.