Not an expert opinion, but if you sell the 6,250 shares before your acceptance has been processed, only your remaining 3,750 shares will be eligible for the takeover offer i.e. 3,750 x 3/8= 1,406 shares can be sold into the takeover offer.
If your offer for 3,750 shares is accepted before you sell any shares on market, and the offer has not yet ended, your remaining 6,250 shares will change from stock code LEI to LEIE. LEIE shares are not eligible for the takeover offer and therefore trade at a discount to LEI ($17.89 compared to $19.82 for LEI).
LEI Price at posting:
$19.82 Sentiment: Sell Disclosure: Held