Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001641172-25-026891
Filing Date
2025-09-08
Accepted
2025-09-08 17:45:40
Documents
1
Period of Report
2025-09-04

Document Format Files

Seq Description Document Type Size
1 ownership.html 4  
1 ownership.xml 4 3864
  Complete submission text file 0001641172-25-026891.txt   5573
Mailing Address 505 MONTGOMERY STREET 10TH FLOOR SAN FRANCISCO CA 94111
Business Address 505 MONTGOMERY STREET 10TH FLOOR SAN FRANCISCO CA 94111 (800) 304-9888
GT Biopharma, Inc. (Issuer) CIK: 0000109657 (see all company filings)

EIN.: 941620407 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)

Mailing Address 99 BELBROOK WAY ATHERTON CA 94027
Business Address
CASAMENTO CHARLES J (Reporting) CIK: 0001117167 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-40023 | Film No.: 251301090