What Are Private Securities? Types, Exemptions, and Risks

Private securities are investment instruments — stock, debt, fund interests, or hybrids — sold outside public stock exchanges under an exemption from SEC registration, usually to a limited group of wealthy or professional investors. Because the offering skips the disclosure and review that come with a public listing, private securities carry less transparency, fewer regulatory guardrails, and almost no ability to sell on short notice. Most buyers must meet income or net-worth thresholds to participate at all, and even after buying, they should expect their money to be tied up for years.

How Private Securities Differ From Public Stocks

A security is “private” when it is offered and sold without being registered with the SEC and without being listed on a national exchange like the NYSE or Nasdaq. The company selling it relies on a legal exemption from the registration requirements of the Securities Act of 1933, and that exemption comes with strings: the company can only sell to certain buyers, and it faces restrictions on how it can advertise.

The most visible difference is liquidity. Public stocks trade continuously at prices anyone can see. Private securities have no centralized marketplace, no daily quotes, and no easy path to a buyer. Valuations often sit unchanged for long stretches, moving only when the company raises a new round, gets appraised, or goes through an acquisition. Plan on your capital being locked up for several years.

Common Types of Private Securities

Private investments show up in several forms, and the form determines what you own and how you get paid.

Private Equity

Private equity gives you an ownership stake in a company that is not publicly traded. That might mean funding an early-stage startup, backing a growing mid-size business, or participating in a buyout of an established company. Returns depend on an eventual sale, merger, or IPO. Until that liquidity event, there is no market to sell into.

Private Debt

Private debt works like a loan. You lend money to a company or project and receive interest payments over a set period. Rates tend to run higher than publicly traded bonds because the instruments lack the transparency and liquidity of public markets. Real estate development loans, direct lending to mid-market companies, and mezzanine financing all fit here.

Convertible Notes

Convertible notes start as debt but include a right to convert the balance into equity, usually triggered by a future funding round or a financial milestone. Early-stage startups use them to raise money now and defer the valuation question. The investor keeps creditor protection while retaining an option on the upside.

Real Estate Syndications

Real estate syndications pool money from multiple investors to acquire or develop a specific property or portfolio. A sponsor manages the project, and passive investors get a share of rental income and eventual sale proceeds. These deals are usually structured as private placements under Regulation D, with a memorandum laying out the business plan, projected returns, and use of funds.

Who Can Buy Private Securities

Federal securities law limits most private offerings to investors who meet specific financial thresholds. The reasoning is blunt: regulators assume wealthier and more experienced investors are better positioned to absorb losses in high-risk, low-transparency deals.

Accredited Investors

The SEC defines an accredited investor as someone meeting at least one of several tests. For individuals, the common paths are:

Individual income above $200,000 in each of the two most recent years, or joint income with a spouse or partner above $300,000 over the same period, with a reasonable expectation of matching that level in the current year.
Individual or joint net worth above $1 million, excluding the value of a primary residence.
Holding certain FINRA licenses, including the Series 7, Series 65, or Series 82, regardless of income or net worth.

Entities like trusts, corporations, and LLCs qualify if they hold more than $5 million in total assets and were not formed just to buy the securities being offered.¹ Directors, executive officers, and general partners of the issuing company also qualify automatically.²

Sophisticated Non-Accredited Investors

Some offering structures let non-accredited individuals in if they have enough knowledge and experience in financial matters to evaluate the risks on their own. The standard is narrower than it sounds. The issuer has to reasonably believe the buyer understands what they are getting into, and no more than 35 such non-accredited investors may participate in a single Rule 506(b) offering.³

The Exemptions Behind Private Offerings

Every private security relies on some exemption from the 1933 Act’s registration requirement. The most important sit under Regulation D.

Rule 506(b)

Rule 506(b) is the workhorse. A company can raise unlimited capital, but it cannot use advertising or general solicitation to find investors. The deal has to come through pre-existing relationships or direct introductions. Up to 35 non-accredited investors may participate if each meets the sophistication standard. There is no cap on the number of accredited investors.⁴

Rule 506(c)

Rule 506(c) lifts the advertising ban and lets companies market their offerings publicly. The trade-off is strict: every single purchaser must be a verified accredited investor. The issuer has to take reasonable steps to confirm accreditation, such as reviewing tax returns and bank statements or obtaining written confirmation from a broker-dealer, attorney, or CPA.⁴ No non-accredited investors, period.

Regulation A+

Regulation A+ sits between full registration and a Regulation D private placement. Tier 1 allows up to $20 million raised in a 12-month period; Tier 2 raises the ceiling to $75 million.⁵ The important difference from Reg D: non-accredited investors can participate. In a Tier 2 offering, they are limited to investing no more than 10% of the greater of their annual income or net worth. Because the issuer files an offering statement that the SEC reviews to some degree, investors get more disclosure than in a typical Reg D deal.

Form D Is a Notice, Not an Approval

Any company using a Regulation D exemption must file Form D with the SEC within 15 days after the first sale of securities. The first sale date is when the first investor becomes irrevocably committed.⁶ The SEC does not review or approve the offering by accepting Form D. Issuers may also owe separate state “blue sky” notice filings, and those fees vary by state and offering size.

What You Sign and What to Check First

Private placements come with a bundle of legal paperwork prepared entirely by the issuer and its attorneys. No regulator reviews it for balance or accuracy, which puts the burden on you.⁷

The Private Placement Memorandum is the main disclosure document. It covers the business, management team, financial history, risk factors, and terms of the investment. It is the issuer’s pitch and warning label combined. Read the risk factors carefully. They spell out exactly how you can lose your money.⁸

The subscription agreement is the formal contract committing you to invest a specific amount. Alongside it, an investor questionnaire collects information about your finances, investment experience, and accredited investor qualifications. The issuer relies on your answers to confirm you are eligible.⁸

Before signing, look past the offering documents. On the financial side, review the current balance sheet, historical revenue and expenses, projected financials with sensitivity analysis on the key assumptions, and the fundraising history showing how prior capital was used. On the operational side, evaluate the management team’s track record, the competitive picture, the intellectual property position, and how realistic the growth plan actually is. Check the capitalization table for red flags like overly complex shareholder structures, undocumented stock issuances, or outstanding loans to management. For real estate deals, verify the property’s independent appraisal, occupancy rates, and the sponsor’s history on similar projects.

Fees and Tax Treatment

Private fund fees run well above what a public index fund charges. The traditional structure, “two and twenty,” has two parts:

A management fee, typically around 2% of committed capital per year, charged regardless of performance. This covers salaries and operating overhead.
Carried interest, usually 20% of profits above a specified return threshold. The remaining 80% flows to the limited partners.

Not every fund uses two-and-twenty exactly. Some charge lower management fees with higher performance splits, or vice versa. Many include a preferred return or hurdle rate, meaning the manager earns no carried interest until investors receive a minimum annual return, often around 8%. The difference between a 1.5% and a 2.5% management fee compounds heavily over a fund’s life, so read the fee disclosures closely.

Tax treatment depends on what you own. Most private equity funds are structured as partnerships, so the fund itself pays no tax; income and losses flow through to investors on a Schedule K-1 issued each year. You report your share of income for the year the fund’s fiscal year ends, whether or not you actually received cash.⁹ When you eventually sell or receive proceeds from a liquidity event, gains held longer than a year qualify as long-term capital gains, taxed at 0%, 15%, or 20% depending on total taxable income. For 2026, the 20% rate applies at $545,500 for single filers and $613,700 for married couples filing jointly.

Interest income from private debt is taxed as ordinary income at your regular federal rate, not at the lower capital gains rates. This applies to direct lending, real estate debt funds, and any arrangement where the return is primarily interest.

On top of that, higher-earning investors owe an additional 3.8% Net Investment Income Tax. It applies to the lesser of your net investment income or the amount by which your modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.¹⁰ Interest, dividends, capital gains, and partnership distributions from private investments all count.

One practical headache: K-1 forms from private funds often arrive late, sometimes not until well into the spring tax season. If you hold multiple private fund positions, plan on filing extensions.

Getting Out: Holding Periods and Exits

This is where private securities diverge most sharply from public stocks. You cannot simply sell when you want to.

Under SEC Rule 144, the minimum holding period before you can resell restricted securities depends on whether the issuer files regular reports with the SEC. Reporting company: six months. Non-reporting company: one year.¹¹ Most private companies are non-reporting, so the one-year floor is more common. The clock does not start until you have paid the full purchase price; paying with a promissory note generally does not start the holding period until the note is discharged.

A small secondary market for private securities does exist, but liquidity is thin. In 2024, combined private equity and credit secondary transactions hit a record $160 billion, still less than 1% of private credit assets under management. Trades that clear often settle at discounts of 5% to 15% below par value. Some fund sponsors offer periodic buyback programs or redemption windows, but these are discretionary and often limited. The honest expectation is that you will hold until a defined exit event: a company sale, an IPO, or fund liquidation.

Risks and the Anti-Fraud Backstop

Private placements carry risks beyond ordinary market volatility, and the SEC has been direct about them.

The biggest structural risk is limited disclosure. Companies selling private securities are not required to provide the level of financial reporting that public companies deliver in quarterly and annual SEC filings. You may have significantly less information for judging whether the price is fair. The offering memorandum is written by the issuer and its lawyers, reviewed by no regulator, and may not present risks in a balanced way.⁷

Fraud is a genuine concern. The SEC warns that fraudsters use unregistered offerings to run investment scams, and recovering money from a fraudulent private placement may be difficult or impossible. Be skeptical of anyone claiming the SEC has “approved” their offering. Form D is a notice filing, not an approval. The SEC does not approve any offering.⁷

One protection stays in force. Even though private placements are exempt from registration, they remain subject to federal anti-fraud laws. If an issuer lies to you or omits material information to induce your investment, you have legal recourse under the same anti-fraud provisions that protect public market investors. Exemption from registration is not exemption from accountability.

1
eCFR. 17 CFR 230.501 – Definitions and Terms Used in Regulation D
2
U.S. Securities and Exchange Commission. Accredited Investors
3
U.S. Securities and Exchange Commission. Private Placements – Rule 506(b)
4
eCFR. 17 CFR 230.506 – Exemption for Limited Offers and Sales Without Regard to Dollar Amount of Offering
5
U.S. Securities and Exchange Commission. Regulation A
6
U.S. Securities and Exchange Commission. Filing a Form D Notice
7
U.S. Securities and Exchange Commission. Private Placements Under Regulation D – Updated Investor Bulletin
8
U.S. Securities and Exchange Commission. Form of Confidential Private Placement Memorandum
9
Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065)
10
Internal Revenue Service. Topic No. 559, Net Investment Income Tax
11
eCFR. 17 CFR 230.144 – Persons Deemed Not to Be Engaged in a Distribution and Therefore Not Underwriters