What Happens to Your Unlisted Shares After the IPO? Lock-In Periods Explained

Reviewed by Team BuyUnlistedShares Research Desk

Many people buy unlisted or pre-IPO shares hoping to benefit when the company finally lists. But what actually happens to those shares on IPO day — and can you sell immediately? The answer usually involves a lock-in. This explainer sets out, factually, what happens to your unlisted shares after the company’s IPO, how lock-in periods work in India, and the risks to understand first. It is information, not investment advice.

What happens to your shares at listing

When a company completes its IPO and lists, your unlisted shares become listed shares. They keep the same ISIN and sit in the same demat account, but they are now admitted to trading on the NSE or BSE — so, in principle, they gain a live market price and an exchange to trade on. The important words are “in principle,” because a lock-in often stops you from selling right away.

Lock-in periods: the key thing to understand

To stop pre-IPO holders from dumping shares the moment a stock lists, SEBI’s rules impose lock-in periods on shares held before the IPO. During a lock-in, the shares are yours but cannot be sold or transferred. Broadly:

• Promoter shares are locked in for a longer period after listing, with the portion counted towards the minimum promoter contribution locked in the longest.
• Pre-IPO shares held by non-promoters (including many employees and early investors) are typically locked in for a shorter period after the date of allotment in the IPO.

The exact durations are set by SEBI’s ICDR regulations and can change, and specific holdings may carry their own contractual lock-ins on top. Always verify the current rules and read the company’s prospectus (DRHP/RHP) for the lock-in that applies to your shares.

Why lock-ins exist

Lock-ins protect new public investors. If every pre-IPO holder could sell on day one, a flood of supply could destabilise the price right after listing. The lock-in staggers when early holders can exit, which supports a more orderly market in the initial months.

What you can and can’t do during lock-in

• You can continue to hold the shares, receive corporate benefits such as dividends, and watch a market price form.
• You can’t sell or transfer the locked-in shares until the lock-in ends — even if the stock rises sharply at listing.

After the lock-in ends

Once the lock-in expires, the shares become freely tradable on the exchange like any other listed stock — you can sell through your broker at the prevailing market price. Note that a wave of lock-in expiries can itself influence the share price, as more supply becomes available at once.

Tax, in brief

Selling after listing is taxed under the rules for listed securities, which differ from those for unlisted shares, and the treatment depends on your holding period. This is a factual flag, not tax advice — the holding period and cost basis for pre-IPO shares can be nuanced, so consult a qualified professional.

Risks to understand before treating a listing as a payday

• The IPO may not happen on schedule. Listings get delayed or shelved; until shares are admitted to trading, they remain unlisted and illiquid.
• The listing price can be below your entry price. A pre-IPO purchase does not guarantee a gain — the stock can list flat or lower.
• A lock-in means you can’t act on a listing pop. If the stock spikes on day one but your shares are locked in, you cannot sell into that move.
• Rules change. Lock-in durations and tax treatment are set by regulation and can be revised.

Frequently asked questions

Can I sell my pre-IPO shares on listing day?

Usually not, if they are subject to a lock-in. Pre-IPO holdings are commonly locked in for a period after allotment; you can sell only once that lock-in ends. Check the prospectus for the lock-in that applies to your shares.

Do my unlisted shares automatically become tradable when the company lists?

They become listed shares with the same ISIN, but whether they are tradable depends on any lock-in. After listing and once any lock-in expires, they trade like a normal listed stock.

Why is there a lock-in at all?

To prevent early holders from selling en masse immediately after listing, which supports a more orderly price in the first months of trading.

Where do I confirm the lock-in on my shares?

The company’s Red Herring Prospectus and SEBI’s ICDR regulations are the authoritative sources; contractual lock-ins may also apply. Verify the current rules rather than relying on general summaries.

Key takeaways

• At listing, unlisted shares become listed shares (same ISIN) — but a lock-in often prevents immediate selling.
• Promoter shares lock in longer; pre-IPO non-promoter shares typically lock in for a shorter period after allotment.
• You can’t sell into a listing pop while locked in; after the lock-in, shares trade freely.
• A listing is not a guaranteed gain — verify lock-in and tax rules from primary sources (prospectus, SEBI).

Disclaimer: This article is for informational and educational purposes only and does not constitute investment, tax, or legal advice, nor a recommendation to buy, sell, hold, or subscribe to any security. Unlisted and pre-IPO shares are high-risk and illiquid, and IPO timelines are uncertain and can change. Lock-in periods and tax rules are governed by SEBI regulations and current law, which are subject to change; verify the specifics that apply to your holdings from the company’s prospectus and official sources. Consult a SEBI-registered investment adviser and a qualified tax professional before acting. Unlisted Axis does not guarantee any outcome.