I can't find a Vaxart (VXRT) news release or regulatory filing about the filing of the IND . So, if we did file on 7/31, I would not expect to hear anything about the IND until at least 8/31. I think RJS has mentioned something similar about other IND filings/approvals, but I can't find the post.

Vaxart SEC Filings:
https://www.sec.gov/edgar/browse/?CIK=0000072444

Vaxart Press Releases:
https://investors.vaxart.com/press-releases