Selling shares is possible when the so-called 'time-lock' has expired. In the case of The Happy Pear the time-lock is 2 years (730 days). After these 2 years you can offer your shares on the Broccoli board. This can be done by 27th of June 2025.
The bulletin board to offer shares to other owners works as follows:
The moment you decide to sell your shares you can offer them to other Broccoli users on the bulletin board. So it does not work like the stock market, where a 'sell order' can be placed and is automatically matched with a buyer. The buyer and the seller have to find each other on the bulletin board and from there they are able to make the desired deal.
The Happy Pear determines within which bandwidth an offer can be placed. This bandwidth is based on the latest company valuation which in turn is based on the latest financial performance and market segment. As a seller you determine the sales price within the set bandwidth. The potential buyer can place bids on this; it is ultimately up to you to accept the desired offer.
Broccoli charges a transaction fee of 2.5% of the total sale price to you, the seller.