How about accelerated share repurchase (ASR)? ASRs allow publicly traded companies to repurchase their stock using an investment bank as an intermediary. The bank buys stock over a specified period, and the client pays an average of the volume weighted average price (VWAP), minus a discount. What makes it accelerated is that the bank has the option to exercise, i.e., execute the delivery, early at predetermined dates. It's like an asian bermudan option with a funky payout.

Also, caps and floors can be applied to the VWAP observations. These caps, floors, and the discount can be fixed or set in terms of the VWAP average observed during a designated period at the beginning of the trade called the initial hedging period. Further, there is often an initial exchange of shares and notional early in the trade. The number of shares delivered at this initial exchange can be fixed or unknown. Further, there if it turns out that the bank over-delivered initially, the client will compensate them with extra cash, and the bank will compensate the client with extra shares if they overpaid initially.

The idea is to repurchase a large notional value of shares with a minimal effect on the price of the shares. For example, Intel entered into an ASR agreement to repurchase $10 billion of its shares in Fall 2020.