How Does a Private Company Become Publicly Traded?

A private company becomes publicly traded by qualifying for a stock exchange, registering its shares with the Securities and Exchange Commission, surviving the SEC’s review of that filing, pricing the offering with investment banks, and then listing on an exchange where the general public can buy and sell the stock. The traditional route is an initial public offering, but direct listings and mergers with special purpose acquisition companies get a company to the same place through different mechanics. From the first serious planning session to the opening bell, the work usually takes six months to a year and costs millions of dollars in fees.

Here is how each stage actually works, and where companies most often get tripped up.

Qualifying for a Stock Exchange

Before anything else, the company has to meet the listing standards of the exchange it wants to join. These are set by the New York Stock Exchange and Nasdaq themselves, not by the SEC, and they function as a minimum credibility threshold so investors know they’re buying into a real operating business.

The NYSE’s earnings test requires aggregate pretax income of at least $10 million over the three most recent fiscal years, with each year positive and the two most recent years at $2 million or more.¹ Companies that don’t fit the earnings path can qualify through alternative tests based on global market capitalization or revenue.

Nasdaq’s Global Select Market offers four sets of financial criteria. Across all of them, the minimum bid price must be at least $4 per share and the company needs at least 1.25 million publicly held shares outstanding.² Companies that fall short of the top tier can list on the Nasdaq Global Market or Nasdaq Capital Market, which have lower thresholds.

Governance is the other half. Both major exchanges require a majority of the board to be independent, meaning directors have no material financial relationship with the company beyond their director fees. Nasdaq Rule 5605(b)(1) spells this out.³ On top of that, the Sarbanes-Oxley Act of 2002 requires the audit committee to consist entirely of independent directors, with at least one member qualifying as a financial expert.⁴ Compensation and nominating committees must also operate independently of management. A company that doesn’t already look like a public company’s board when it starts the process will spend part of the pre-IPO window recruiting directors who do.

Filing the Form S-1 Registration Statement

The core legal document for a traditional IPO is the Form S-1 registration statement, filed under the Securities Act of 1933. The company, its outside securities counsel, and the lead underwriter spend months drafting it. It gets filed through EDGAR, the SEC’s electronic filing system.⁵

The S-1 covers essentially everything an investor might want to know: the business model, competition, how the company plans to use the money raised, executive compensation, capital structure after the offering, and biographies of all officers and directors.

Financial disclosure is the backbone. A company that isn’t an emerging growth company or smaller reporting company must include three years of audited financial statements, including income statements and cash flow statements, verified by an independent firm under Public Company Accounting Oversight Board standards.⁶ Smaller reporting companies need two years.

Risk factors are the other place where drafting attention concentrates. The SEC wants specificity. A software company might disclose dependence on a single cloud provider, exposure to cybersecurity threats, or revenue concentration among a handful of customers. Generic risks that apply to every business don’t satisfy the requirement and tend to draw comment letters demanding revisions.

The Confidential Filing Option

Since 2017, any issuer can submit a draft registration statement for nonpublic SEC review. This used to be limited to emerging growth companies and now isn’t. The tradeoff is that the company must publicly file the registration statement and all prior confidential drafts at least 15 days before beginning its roadshow, or 15 days before the requested effective date if there’s no roadshow.⁷ Filing confidentially lets a company work through SEC comments without competitors or reporters tracking every revision.

Clearing SEC Review

Once the S-1 is in, the SEC’s Division of Corporation Finance reviews it for completeness and compliance. Staff issue comment letters pointing out disclosure that is vague, inconsistent with the financials, or missing required information. The comments can be pointed: why did a revenue recognition policy change, why wasn’t a particular risk disclosed, how was a metric featured in the prospectus calculated. The company’s lawyers draft formal responses and file amended versions of the S-1, and the exchange often goes through multiple rounds. When the staff is satisfied, the Division declares the registration statement effective, which legally permits the company to sell shares.⁸

Why the painstaking back-and-forth? Section 11 of the Securities Act creates strict liability for material misstatements or omissions in the registration statement. Any investor who bought in the offering can sue everyone who signed, every director, the underwriters, and any accountant or expert who certified part of it.⁹ The issuer has no defense; it’s liable regardless of intent. Other defendants can escape liability only by proving they conducted reasonable due diligence and had no reason to believe the statement was inaccurate. That’s why legal and accounting fees run so high.

What the Company Can Say During the Process

Section 5 of the Securities Act tightly controls public communications throughout the IPO, and the rules shift at each stage. Violating them is called “gun jumping,” and it can delay or derail an offering.

In the pre-filing period, before the S-1 is submitted, the company cannot make any communication that could be seen as conditioning the market for the stock sale. Executives should stick to ordinary-course communications consistent with past practice. A safe harbor allows most communications up until 30 days before filing, so long as they don’t reference the upcoming offering.

Once the S-1 is on file, the company enters the waiting period. Written offers are prohibited unless they take the form of a statutory prospectus or a “free writing prospectus” filed with the SEC. Oral offers become technically permissible, but the SEC defines “oral” narrowly enough that most companies avoid substantive communications entirely until the roadshow begins. Sales remain prohibited until the registration statement goes effective. After effectiveness, sales can proceed, but public statements by officers and directors still need to track what’s in the prospectus.

Pricing and the First Trade

With an effective registration statement in hand, the company enters its marketing phase. Executives and the lead underwriters travel to meet institutional investors: hedge funds, mutual funds, pension funds, and insurance companies. These roadshow presentations walk potential buyers through the company’s growth story, financials, and competitive position. The roadshow usually runs one to two weeks.

While it runs, the underwriters build the book, recording how many shares each investor wants and at what price. After the roadshow concludes, the company and lead underwriters meet for a final pricing session, analyzing demand to set the offering price and the total number of shares. Too high a price leaves shares unsold; too low means the company left money on the table. The final price goes into an updated prospectus filed with the SEC before shares are distributed.

On the morning of the debut, the exchange runs an opening auction to match buy and sell orders and establish the first trade price, producing an orderly start rather than a chaotic rush. Underwriters collect funds from institutional buyers who committed during pricing and transfer the net proceeds to the company. Standard stock settlement has run on a T+1 cycle since May 2024, meaning trades settle one business day after execution.¹⁰ From that point forward, the company is publicly traded.

What It Costs

The expenses add up quickly, and first-time issuers routinely underestimate them. The SEC charges a registration fee of $138.10 per million dollars of securities registered for fiscal year 2026.¹¹ That’s one of the smaller line items.

Underwriting fees paid to the investment banks running the offering typically range from 4% to 7% of gross IPO proceeds. On a $200 million raise, that’s $8 million to $14 million before anyone else gets paid. Legal and accounting fees, exchange listing fees, printing, and other expenses push total disclosed costs for a typical IPO into the range of $9 million to $18 million, according to an analysis of SEC filings for U.S. IPOs from 2015 through 2024. State-level blue sky notice filings add a smaller layer, with fees typically ranging from around $50 to $1,500 per state. Internal costs are harder to count: executive time away from running the business during a process that can consume the better part of a year is real, even if nobody writes a check for it.

Lock-Ups and Insider Sale Restrictions

Founders, executives, early investors, and employees holding pre-IPO shares generally can’t sell them on the open market right away. The underwriting agreement almost always includes a lock-up period, typically 180 days from the IPO date, during which insiders agree not to sell. This isn’t a legal requirement. It’s a contractual one that underwriters insist on to prevent a flood of insider shares from cratering the stock in its first months of trading.

Federal law adds its own restrictions through SEC Rule 144. Holders of restricted securities from a reporting company must wait at least six months before selling. Affiliates face additional volume limits: they can sell no more than the greater of 1% of outstanding shares or the average weekly trading volume over the prior four weeks during any three-month window.¹² Non-affiliates who have held their shares for at least a year can sell without volume caps. Affiliates selling more than 5,000 shares or more than $50,000 worth in any three-month period must also file a notice on Form 144 with the SEC.

Life as a Public Company

Going public creates a permanent set of disclosure obligations. The core filings are:

Form 10-K, the annual report, due 60 days after fiscal year-end for large accelerated filers, 75 days for accelerated filers, and 90 days for everyone else. It contains audited financials, management discussion, and updated risk factors.¹³
Form 10-Q, the quarterly report, due 40 days after quarter-end for accelerated and large accelerated filers, 45 days for all others. It covers unaudited quarterly results and material developments.
Form 8-K, the current report, due within four business days of a triggering event such as a CEO departure, an acquisition, a bankruptcy filing, or a material contract.

Officers, directors, and any holder of more than 10% of the stock must disclose their trades under Section 16 of the Exchange Act, with changes reported on Form 4 within two business days. Anyone crossing 5% ownership must file a Schedule 13D within five business days disclosing position and intentions.¹⁴

Sarbanes-Oxley Section 404 adds another ongoing burden: management must evaluate and report on the effectiveness of internal controls over financial reporting each year, and for larger companies an independent auditor must attest to that assessment. It’s one of the most expensive recurring compliance obligations and a major reason some firms eventually consider going private again.

The Lighter Path for Smaller Companies

The JOBS Act of 2012 created scaled-down requirements for smaller issuers. A company qualifies as an emerging growth company if its annual gross revenue is below $1.235 billion.¹⁵ That status lasts up to five years after the IPO.

Emerging growth companies can include only two years of audited financial statements in the S-1 instead of three.⁶ They’re exempt from the requirement to have an outside auditor attest to internal controls under SOX Section 404(b), which can save hundreds of thousands of dollars a year. They can adopt new accounting standards on the delayed timeline available to private companies, and they face reduced executive compensation disclosure. Most companies going public today qualify, so a recent IPO filing is usually a scaled-down version of what a large public company would disclose.

Alternatives to a Traditional IPO

The S-1-and-roadshow route isn’t the only way onto an exchange. Each alternative trades away part of the standard process in exchange for speed, cost, or flexibility.

Direct Listings

In a direct listing, no new shares are issued and no underwriters price the stock. Existing shareholders, typically employees and early investors, sell their shares directly to the public on the exchange. That eliminates underwriting fees and the traditional lock-up. Since December 2020, the NYSE has also allowed companies to raise new capital through a direct listing by selling primary shares alongside the existing shareholder sales.¹⁶ Without a roadshow and bookbuilding process, first-day pricing can be volatile. Direct listings work best for companies that already have strong brand recognition and don’t need banks to drum up investor interest.

SPAC Mergers

A special purpose acquisition company is a publicly traded shell that raised money through its own IPO for the sole purpose of acquiring a private business. When a private company merges with a SPAC, it inherits the SPAC’s public listing without going through the traditional IPO process itself. The SEC adopted rules in 2024 requiring enhanced disclosures in these transactions, including detailed information about sponsor compensation, conflicts of interest, dilution, and any board determination that the deal is in shareholders’ best interests.¹⁷ SPAC mergers can close faster than a traditional IPO, but dilution from sponsor shares and warrants often means existing shareholders give up more than they expect.

Regulation A+ Offerings

Smaller companies that don’t meet major exchange listing standards can use Regulation A+ to raise capital from the public under a streamlined framework. Tier 1 allows offerings up to $20 million in a 12-month period; Tier 2 allows up to $75 million.¹⁸ Tier 2 issuers become subject to ongoing SEC reporting, though less burdensome than full public company obligations. Reg A+ offerings are sometimes called “mini-IPOs” and can be a practical path for companies too small for the NYSE or Nasdaq but still looking to tap public capital.

1
New York Stock Exchange. NYSE Initial Listing Standards Summary
2
Nasdaq Listing Center Document. Nasdaq Initial Listing Guide
3
The Nasdaq Stock Market. Listing Rule 5600 Series
4
Villanova University Charles Widger School of Law Digital Repository. The Sarbanes-Oxley Act and the Reinvention of Corporate Governance
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U.S. Securities and Exchange Commission. About EDGAR
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U.S. Securities and Exchange Commission. Financial Reporting Manual – Topic 1 – Registrant’s Financial Statements
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U.S. Securities and Exchange Commission. Enhanced Accommodations for Issuers Submitting Draft Registration Statements
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U.S. Securities and Exchange Commission. Filing Review Process
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10
U.S. Securities and Exchange Commission. Shortening the Securities Transaction Settlement Cycle
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U.S. Securities and Exchange Commission. Section 6(b) Filing Fee Rate Advisory for Fiscal Year 2026
12
eCFR. 17 CFR 230.144 – Persons Deemed Not to Be Engaged in a Distribution
13
U.S. Securities and Exchange Commission. Form 10-K
14
U.S. Securities and Exchange Commission. Exchange Act Sections 13(d) and 13(g) and Regulation 13D-G Beneficial Ownership Reporting
15
U.S. Securities and Exchange Commission. Emerging Growth Companies
16
U.S. Securities and Exchange Commission. Statement on Primary Direct Listings
17
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18
U.S. Securities and Exchange Commission. Regulation A