It is unusual to PR any data lock. IMO it creates a bees’ nest due to the SEC reporting requirements around Material information. In the unlikely event that the study is negative, they have 72 hours from receiving this information to alert their shareholders.
In the possible event that the results are mixed, that creates a dilemma regarding whether or not they need to follow these requirements.
In the most likely event that TLD is positive, then they have the luxury of taking their time, reviewing things with the SAB and timing the release as best they can.
I think this is partially why they have been ambiguous about the timing. Bottom line, if we are waiting much past the July 4th holiday, then we are increasingly looking at positive results pending.