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ARTICLE · 24 JUNE 2026

Turkish Lock-up Undertakings In Public Offerings

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Lock-up undertakings serve as a critical mechanism in public offering processes, restricting existing shareholders and issuers from selling or transferring shares for specified periods following an initial public offering.

TurkeyFinance and Banking

1. General

Various mechanisms are employed in public offering processes to establish investor confidence and preserve the stability of share prices. One such mechanism is the arrangement known as a “lock-up undertaking“, which refers to the undertaking by the issuer and the existing shareholders of the issuer not to sell, transfer, or otherwise dispose of their shares for a specified period. Lock-up undertakings are essentially aimed at preventing a sudden and intensive supply of shares to the market following a public offering, thereby serving to maintain the supply-demand balance and ensure price stability.

Lock-up undertakings are of particular significance with respect to initial public offerings, as they influence market dynamics by restricting the supply of shares to the market for a certain period following the public offering. Indeed, the simultaneous release of such shares into the market after a public offering may create an oversupply, leading to declines in share prices

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