Company · CIK 1534525 # Xenetic Biosciences, Inc. | CIK | [1534525](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001534525) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 2834 — Pharmaceutical Preparations | | Incorporated in | NV | | Business address | MA | | Listed | XBIO (Nasdaq) | | First annual or quarterly report | 2012-04-24 | ## Offerings 8 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-282756 | Shelf Effective | 2024-10-21 | 2025-10-14 | 4 | | 333-260201 | Shelf Effective | 2021-10-12 | 2021-11-19 | 3 | | 333-258810 | Shelf Effective | 2021-08-13 | 2021-08-23 | 2 | | 333-227572 | Shelf Effective | 2018-09-27 | 2020-12-11 | 4 | | 333-233769 | Shelf Effective | 2019-09-13 | 2019-09-23 | 2 | | 333-231508 | Registered company Effective | 2019-05-15 | 2019-07-19 | 8 | | 333-211249 | Registered company Final prospectus | 2016-05-09 | 2016-11-03 | 12 | | 333-178082 | First-time registration Effective | 2011-11-21 | 2012-03-22 | 5 | ## Filings 41 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2025-10-14 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316825007512/0001683168-25-007512-index.htm) Shelf takedown | 333-282756 | 0001683168-25-007512 | | 2025-10-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316825007488/0001683168-25-007488-index.htm) Shelf takedown | 333-282756 | 0001683168-25-007488 | | 2024-11-01 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999524003345/9999999995-24-003345-index.htm) Declared effective | 333-282756 | 9999999995-24-003345 | | 2024-10-21 | [S-3](https://www.sec.gov/Archives/edgar/data/1534525/000168316824007258/0001683168-24-007258-index.htm) Shelf registered | 333-282756 | 0001683168-24-007258 | | 2021-11-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316821005858/0001683168-21-005858-index.htm) Shelf takedown | 333-260201 | 0001683168-21-005858 | | 2021-10-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999521004007/9999999995-21-004007-index.htm) Declared effective | 333-260201 | 9999999995-21-004007 | | 2021-10-12 | [S-3](https://www.sec.gov/Archives/edgar/data/1534525/000168316821004784/0001683168-21-004784-index.htm) Shelf registered | 333-260201 | 0001683168-21-004784 | | 2021-08-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999521003284/9999999995-21-003284-index.htm) Declared effective | 333-258810 | 9999999995-21-003284 | | 2021-08-13 | [S-3](https://www.sec.gov/Archives/edgar/data/1534525/000168316821003581/0001683168-21-003581-index.htm) Shelf registered | 333-258810 | 0001683168-21-003581 | | 2020-12-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316820004276/0001683168-20-004276-index.htm) Shelf takedown | 333-227572 | 0001683168-20-004276 | | 2019-09-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999519002156/9999999995-19-002156-index.htm) Declared effective | 333-233769 | 9999999995-19-002156 | | 2019-09-13 | [S-3](https://www.sec.gov/Archives/edgar/data/1534525/000168316819002928/0001683168-19-002928-index.htm) Shelf registered | 333-233769 | 0001683168-19-002928 | | 2019-07-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316819002248/0001683168-19-002248-index.htm) Shelf takedown | 333-231508 | 0001683168-19-002248 | | 2019-07-16 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999519001611/9999999995-19-001611-index.htm) Declared effective | 333-231508 | 9999999995-19-001611 | | 2019-07-12 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316819002183/0001683168-19-002183-index.htm) Amendment | 333-231508 | 0001683168-19-002183 | | 2019-07-05 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316819002118/0001683168-19-002118-index.htm) Amendment | 333-231508 | 0001683168-19-002118 | | 2019-07-02 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316819002077/0001683168-19-002077-index.htm) Amendment | 333-231508 | 0001683168-19-002077 | | 2019-06-24 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316819001987/0001683168-19-001987-index.htm) Amendment | 333-231508 | 0001683168-19-001987 | | 2019-05-24 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316819001725/0001683168-19-001725-index.htm) Amendment | 333-231508 | 0001683168-19-001725 | | 2019-05-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999519001174/9999999995-19-001174-index.htm) Declared effective | 333-230637 | 9999999995-19-001174 | | 2019-05-15 | [S-1](https://www.sec.gov/Archives/edgar/data/1534525/000168316819001583/0001683168-19-001583-index.htm) Registration filed | 333-231508 | 0001683168-19-001583 | | 2019-03-07 | [424B5](https://www.sec.gov/Archives/edgar/data/1534525/000168316819000575/0001683168-19-000575-index.htm) Shelf takedown | 333-227572 | 0001683168-19-000575 | | 2018-10-12 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999518002611/9999999995-18-002611-index.htm) Declared effective | 333-227572 | 9999999995-18-002611 | | 2018-09-27 | [S-3](https://www.sec.gov/Archives/edgar/data/1534525/000168316818002876/0001683168-18-002876-index.htm) Shelf registered | 333-227572 | 0001683168-18-002876 | | 2016-11-03 | [424B4](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000468/0001683168-16-000468-index.htm) Final prospectus | 333-211249 | 0001683168-16-000468 | | 2016-11-01 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999516006118/9999999995-16-006118-index.htm) Declared effective | 333-211249 | 9999999995-16-006118 | | 2016-10-31 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000421/0001683168-16-000421-index.htm) Amendment | 333-211249 | 0001683168-16-000421 | | 2016-10-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000392/0001683168-16-000392-index.htm) Amendment | 333-211249 | 0001683168-16-000392 | | 2016-10-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000384/0001683168-16-000384-index.htm) Amendment | 333-211249 | 0001683168-16-000384 | | 2016-10-21 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000354/0001683168-16-000354-index.htm) Amendment | 333-211249 | 0001683168-16-000354 | | 2016-10-11 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000280/0001683168-16-000280-index.htm) Amendment | 333-211249 | 0001683168-16-000280 | | 2016-09-23 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000168316816000181/0001683168-16-000181-index.htm) Amendment | 333-211249 | 0001683168-16-000181 | | 2016-07-14 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000101968716006927/0001019687-16-006927-index.htm) Amendment | 333-211249 | 0001019687-16-006927 | | 2016-07-08 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000101968716006881/0001019687-16-006881-index.htm) Amendment | 333-211249 | 0001019687-16-006881 | | 2016-06-24 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000101968716006764/0001019687-16-006764-index.htm) Amendment | 333-211249 | 0001019687-16-006764 | | 2016-05-09 | [S-1](https://www.sec.gov/Archives/edgar/data/1534525/000101968716006175/0001019687-16-006175-index.htm) Registration filed | 333-211249 | 0001019687-16-006175 | | 2012-03-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1534525/999999999512000806/9999999995-12-000806-index.htm) Declared effective | 333-178082 | 9999999995-12-000806 | | 2012-03-02 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000125529412000158/0001255294-12-000158-index.htm) Amendment | 333-178082 | 0001255294-12-000158 | | 2012-02-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000153452512000004/0001534525-12-000004-index.htm) Amendment | 333-178082 | 0001534525-12-000004 | | 2012-01-11 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1534525/000153452512000002/0001534525-12-000002-index.htm) Amendment | 333-178082 | 0001534525-12-000002 | | 2011-11-21 | [S-1](https://www.sec.gov/Archives/edgar/data/1534525/000153452511000003/0001534525-11-000003-index.htm) Registration filed | 333-178082 | 0001534525-11-000003 | [All filings of this company](https://equitycapital.markets/filings?cik=1534525) · [CSV](https://equitycapital.markets/filings.csv?cik=1534525) --- Source page: https://equitycapital.markets/company/1534525 · Data: U.S. SEC EDGAR · CC BY 4.0