Shareholders are clearly worried about stock dilution with the nuclear specialist's latest regulatory disclosure.Oklo (OKLO -3.54%) aims to raise more capital from a share issue than previously planned, and investors weren't too happy to learn this fact. This information, published in a regulatory disclosure after market hours on Wednesday, helped drive Oklo's stock price down by nearly 4% the following day. That was in a session where the bellwether S&P 500 index closed higher by 0.8%.A $140 million boostI ...