Caveat: I don't know anything about short selling, so I may be misinterpreting this. That said, https://www.investor.gov/introduction-investing/investing-basic

Caveat: I don't know anything about short selling, so I may be misinterpreting this. That said, https://www.investor.gov/introduction-investing/investing-basics/glossary/threshold-securities https://www.investor.gov/introduction-investing/investing-ba... notes you only get listed as a threshold security if a few criteria are met, one of which is that the amount failed to deliver must be: > equal to at least 0.5% of the issuer's total shares outstanding Based on 70M outstanding shares, that means at least 350,000 undelivered shares. We don't know _why_ there was a failure to deliver, though. Not all failures may be related to short selling - someone's system screwing up for mundane reasons could cause such a thing, with no malice required.