Once a company has completed its IPO, it may need to raise additional equity capital at some point in the future. This is done through a follow-on offering (also called a “secondary offering” in common usage, though the two terms have slightly different technical meanings). For anyone recruiting for investment banking, especially equity capital markets (ECM) roles, understanding how these offerings work is essential. This guide breaks down the mechanics, the different types, and why companies pursue them.
What Is a Follow-On Offering?
A follow-on offering (FPO) is any issuance of stock that occurs after a company’s initial public offering. The term is used broadly to describe any additional equity raise by a company that is already publicly traded. Follow-on offerings are a core product of equity capital markets groups at investment banks and represent a significant source of fee revenue.
Follow-on offerings are generally divided into two categories: primary offerings and secondary offerings. While people often use “follow-on” and “secondary” interchangeably in casual conversation, they mean different things technically, and interviewers will expect you to know the distinction.
Primary Follow-On Offering vs. Secondary Offering
Primary Offering
In a primary follow-on offering, the company itself issues new shares and sells them to investors. The proceeds go directly to the company. This is dilutive to existing shareholders because the total number of shares outstanding increases. Companies pursue primary offerings to raise capital for growth initiatives, acquisitions, debt repayment, or general corporate purposes.
For example, if a company has 100 million shares outstanding and issues 10 million new shares in a primary offering, existing shareholders now own a smaller percentage of the total equity. Their ownership has been diluted from, say, 10% to approximately 9.1% (depending on how many shares they held). This dilution effect is something that investors pay close attention to, and it is a key consideration when analyzing the impact of any equity raise on a company’s equity value.
Secondary Offering
In a secondary offering, existing shareholders, such as founders, early investors, private equity sponsors, or executives, sell their shares to the public. The company does not issue any new shares and does not receive any of the proceeds. The proceeds go entirely to the selling shareholders.
Secondary offerings are not dilutive because no new shares are created. However, they can still put downward pressure on the stock price because they increase the supply of shares available in the market. Investors may also interpret insider selling as a negative signal: if the company’s own founders or major investors are selling, it might suggest they believe the stock is fully valued.
Combined Offerings
Many follow-on offerings are actually a combination of primary and secondary components. The company issues some new shares (primary), and existing shareholders sell some of their shares (secondary), all in the same offering. The prospectus will clearly break out how many shares are primary and how many are secondary, and where the proceeds are going.
How a Follow-On Offering Works
The mechanics of a follow-on offering are similar to an IPO but typically faster and less involved, since the company is already public and has existing financial disclosures.
1. Engage Underwriters
The company selects investment banks to underwrite the offering. Often, this is the same bank (or banks) that led the IPO. The underwriters help determine the size and timing of the offering and manage the marketing and execution process.
2. File the Prospectus Supplement
If the company has a shelf registration statement (an S-3) already on file with the SEC, the process is streamlined. The company simply files a prospectus supplement with the specific details of the offering: the number of shares, the price, and the use of proceeds. This is much faster than the full S-1 process required for an IPO.
3. Marketing and Pricing
Follow-on offerings are typically marketed and priced very quickly, often overnight. The underwriters may conduct an “accelerated bookbuild,” reaching out to institutional investors in the evening and pricing the deal by the next morning. Because the company is already publicly traded and has a known market price, there is less uncertainty about valuation compared to an IPO. The offering is typically priced at a small discount to the current stock price (often 2% to 5%) to incentivize investors to participate.
4. Settlement and Trading
After pricing, the new shares are allocated to investors and settle in the standard timeline. The shares begin trading alongside the company’s existing shares on the exchange.
Shelf Registration: Why It Matters
Many public companies file a shelf registration statement (Form S-3) with the SEC. This gives the company the ability to issue securities, including equity, at any time over a multi-year period without going through a full registration process each time. Think of it as pre-approval to issue shares when market conditions are favorable.
Shelf registrations make follow-on offerings much more efficient. When a company wants to raise equity, it simply files a prospectus supplement detailing the specific offering. This allows companies to move quickly and take advantage of favorable stock prices or market windows.
Why Do Companies Issue Follow-On Offerings?
Companies pursue follow-on offerings for a variety of reasons:
- Fund growth or acquisitions: A company that wants to make a large acquisition or invest heavily in expansion may need to raise additional equity capital.
- Strengthen the balance sheet: Companies may issue equity to pay down debt and reduce leverage, improving their credit profile.
- Take advantage of a high stock price: If a company’s stock has run up significantly, management may decide to raise equity while the valuation is elevated.
- Provide liquidity for insiders: Early investors and founders often want to monetize some of their holdings, especially after lock-up periods expire following an IPO.
Impact on Existing Shareholders
The impact of a follow-on offering depends on whether it is primary or secondary. A primary offering is dilutive: each existing share represents a smaller slice of the company after the offering. This is important when thinking about metrics like earnings per share (EPS) and is directly relevant to accretion/dilution analysis.
A secondary offering is not dilutive, but it can still weigh on the stock price in the short term due to the increased supply of shares and the potential negative signaling effect of insider selling.
In practice, the stock price often drops slightly when a follow-on offering is announced, reflecting the expected dilution (for primary offerings) or increased supply (for secondary offerings). However, if the market views the use of proceeds favorably (for example, if the company is raising capital for a transformative acquisition), the stock may recover quickly.
At-the-Market (ATM) Offerings
An at-the-market (ATM) offering is a variation of the follow-on offering where a company sells shares gradually over time at prevailing market prices, rather than in a single large block. ATM programs are managed by an investment bank that acts as an agent, selling shares into the market on behalf of the company. This approach minimizes the price impact of the offering because shares are dribbled out slowly rather than sold all at once.
ATM offerings are particularly common among REITs, biotech companies, and other issuers that need to raise capital on an ongoing basis. The company has flexibility to sell shares when it wants and can pause the program at any time.
Follow-On Offerings vs. Rights Issues
A rights issue (more common outside the U.S., particularly in Europe and Asia) is another way to raise equity capital. In a rights issue, existing shareholders are given the right to purchase new shares at a discount to the current market price, in proportion to their existing holdings. This allows shareholders to maintain their ownership percentage if they choose to participate. Rights issues are less common in the U.S. but are still worth understanding, especially if you are interested in investment banking in London.
Interview Tips: Follow-On Offerings
If you are preparing for investment banking interviews, here are some questions you might encounter related to follow-on offerings:
- “What is the difference between a primary and secondary offering?” Primary: new shares issued by the company, proceeds go to the company, dilutive. Secondary: existing shareholders sell their shares, proceeds go to sellers, not dilutive.
- “How does a follow-on offering affect EPS?” A primary offering increases shares outstanding, which, all else equal, reduces EPS. A secondary offering does not affect shares outstanding or EPS.
- “Why would a company issue equity instead of debt?” The company may be too highly leveraged, may not have the cash flows to service additional debt, or may want to maintain financial flexibility. Understanding the trade-off between debt and equity ties directly into WACC concepts.
For a deeper understanding of the technical foundations behind these concepts, review our guides on unlevered free cash flow and the equity value bridge.
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