Secondary Market Sales and Tender Offers: A Practical Guide

Secondary liquidity for private-company shares is no longer an unusual event. Late-stage companies run employee tenders on two-year cycles. Dedicated platforms (Hiive, Forge, EquityZen, Nasdaq Private Market) match buyers and sellers in shares of dozens of mid- to late-stage private companies. Institutional buyers regularly source $10M+ positions through structured secondaries. For an employee sitting on $2M of vested equity at a company that is three-plus years from IPO, a secondary is often the difference between paying off a mortgage and waiting indefinitely.

The mechanics are more complicated than selling public stock. Private companies control who can own their shares through transfer restrictions in the bylaws, rights of first refusal in the stock purchase agreement, and board-approval requirements. Rule 144 under the Securities Act governs when restricted stock can be resold publicly; Rule 701 governs the exemption under which employee grants were issued. Sellers have to navigate all of this before a wire ever shows up.

This guide covers the practical steps: how company-sponsored tenders work, how third-party secondaries work, what the ROFR process actually looks like, tax treatment, and realistic timelines.

Company-sponsored tender offers

A tender offer is a company-run liquidity program where the issuer (or an outside buyer with company blessing) offers to buy a defined amount of shares from eligible employees at a fixed price for a fixed window.

Typical structure. Employees with at least two years of tenure and vested shares (or vested options exercised before the tender) can sell up to a capped percentage of their position. The cap is usually 10-25% of vested shares. Price is set at or near the latest preferred round value, sometimes with a small discount. The window runs 20-60 days. SEC Rule 13e-4 governs tenders by the issuer itself; Rule 14E governs tenders by a third party.

For employees, tenders are the cleanest liquidity path. The company handles the paperwork, the ROFR is pre-waived as part of the program, and the tax treatment is well-defined. Participation is voluntary per share: you can tender all of your capped amount, some of it, or none of it.

Tax treatment at tender depends on the character of the shares being sold. Double-trigger RSUs whose second trigger is satisfied by the tender produce ordinary W-2 income on the full sale value minus zero basis. Shares acquired through option exercise produce capital gain (short- or long-term depending on hold from exercise date) on the difference between sale price and exercise basis. A mixed position (some RSU, some option-exercised) creates a mixed tax outcome. Most tender programs issue a detailed tax letter to each participating employee explaining the split.

Third-party secondary platforms

Outside a company-sponsored tender, an employee can try to sell directly to an outside buyer through a platform like Hiive or Forge. These platforms match bids and asks in named private companies and run the mechanical process of transferring shares once price is agreed.

The sell-side friction is substantial. The company’s stock plan likely contains a ROFR clause giving the issuer the right to match any third-party offer for a defined period (30-60 days is typical). The bylaws may restrict transfers to accredited investors and require board consent. Some companies contractually prohibit secondary sales outside of company-sanctioned windows. A prohibition in the stock purchase agreement is enforceable; violating it can result in loss of vesting or other remedies.

A realistic process for a compliant third-party secondary:

1. List the shares on a platform at an ask price.
2. A buyer hits the ask, usually at a 10-30% discount to the last preferred round.
3. The company is notified and exercises or waives ROFR within the contractual window.
4. If the company waives, the transfer documents execute, shares move to the buyer, cash wires to the seller.
5. The transaction is reported to the seller for tax purposes on Form 1099-B or equivalent.

Typical timelines from listing to wire: 30-90 days if the company cooperates, much longer if the company is slow to process the ROFR or if the transfer requires additional approvals. Companies that are close to an IPO sometimes impose blackouts on all secondary activity in the 6-9 months before filing.

Pricing: the discount to last round

Pre-IPO secondary pricing sits in a defensible range below the last preferred round. The rationale: the buyer is purchasing common stock, not preferred, and absorbing illiquidity risk plus the time until exit.

Typical discounts:

These ranges move with the market. In hot secondary periods (late 2020, mid-2024), discounts narrow or even invert (secondaries trade above the last preferred round because buyers expect an upsized IPO). In cooler periods, discounts widen.

For sellers, the right benchmark is not “what is the last round” but “what is the probability-weighted exit value minus the cost of carrying the position for another N years.” Taking a 25% discount now to lock in liquidity is often rational even when the stock “should” be worth more, because the alternative is carrying concentrated single-stock risk through an uncertain exit.

Rule 144 and affiliate status

Once a company is public, restricted stock acquired in the private-company phase can be sold under Rule 144 after satisfying holding periods and, for affiliates, volume and notice requirements.

Holding periods. For non-affiliates of a reporting company (most non-executive employees), six months from acquisition. For non-affiliates of a non-reporting company, one year from acquisition.

Affiliate restrictions. Officers, directors, and 10%+ shareholders are affiliates under Rule 144. They can sell in any three-month period no more than the greater of 1% of outstanding shares or the average weekly trading volume over the preceding four weeks. They must file Form 144 with the SEC prior to sale and sell through a broker in unsolicited brokers’ transactions.

Rule 701 issuances. Shares acquired through an equity-comp plan under the Rule 701 exemption from registration are restricted but qualify for a shortened Rule 144 holding period (90 days post-IPO for non-affiliates). Most employee stock is Rule 701 stock.

A common mistake is assuming that lock-up expiration means free selling. Lock-up is a contractual restriction imposed by the underwriters; Rule 144 is a separate statutory framework. Both have to be satisfied.

Tax treatment

For an option-exercised share sold in a secondary, the gain or loss is capital, character determined by the holding period from exercise date to sale date. Long-term if more than one year held. Short-term if less. Basis is the strike price (plus any ordinary income previously recognized on NSO exercise or ISO disqualifying disposition).

For a double-trigger RSU share sold in a tender that also satisfies the second trigger, the entire sale proceeds are ordinary W-2 income with zero basis. The company withholds at the 22% supplemental rate up to $1M YTD, 37% above. For employees selling $1M+ in a tender, the withholding shortfall is the same problem as with any other supplemental income at high brackets.

For founder stock held more than five years, QSBS under IRC §1202 can fully or partially exclude the gain from federal tax up to the greater of $10M or 10x basis. QSBS eligibility is narrow (C-corp, not in excluded industries, gross assets under $50M at issuance, held five years), and secondary buyers cannot claim QSBS because they did not acquire directly from the issuer. Founders should confirm QSBS status before selling to preserve the exclusion.

Frequently asked

Can I sell to a friend or family member directly? The company’s bylaws and ROFR apply to any third-party transfer regardless of the buyer. Private family transfers to accredited immediate family are sometimes permitted under a bylaw carve-out. Check the stock plan document.

What is a “forward contract” or “prepaid variable forward” secondary? A structured transaction where a buyer pays the seller cash now in exchange for delivery of shares at a future date (often post-IPO lock-up). These are useful when the company will not permit a direct transfer but the seller needs liquidity. Tax treatment depends on the exact structure; closed-to-closed forwards can defer gain recognition under IRC §1259 (constructive sale rules) if structured correctly.

Do I owe capital gains tax in the year of sale or when the wire arrives? In the year of legal transfer, which for most secondaries is the date the company formally acknowledges the ROFR process is complete and the transfer books update. This is typically the same calendar quarter as the wire.

What happens if the company refuses to approve the transfer? The sale does not close. Most platforms have mechanisms to return funds to the buyer and release the seller from the ask. If the company consistently blocks secondaries, the practical secondary market for that stock does not exist despite whatever platforms claim.

Is there a minimum trade size? Most platforms match trades from $50k up to $10M+. Below $50k, the per-transaction legal and transfer fees usually exceed the economic benefit.

Next step

Before listing shares on a platform or responding to a tender offer, read the stock plan document, the grant agreement, and any transfer-restriction disclosures carefully. The pre-IPO liquidity calculator models after-tax proceeds for RSU-origin and option-origin shares. If the amount is meaningful, have a securities attorney review the purchase agreement and tax counsel review the character of the gain before signing.