Xenetic Biosciences, Inc. SEC filings XBIO
Xenetic Biosciences, Inc. has 484 filings in SEC EDGAR's recent list, going back to Nov 21, 2011. Its latest annual report, Form 10-K, was filed on Mar 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 23, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 18, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 4 | Insider transaction | Apr 23, 2026 | Apr 21, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 12, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 18, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 18, 2024 | — |
| 4 | Insider transaction | Dec 18, 2023 | Dec 6, 2023 |
| 3 | Initial insider ownership | Dec 18, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 11, 2023 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 11, 2023 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 11, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 18, 2023 | — |
| SC 13D | Ownership over 5% (active) | Jun 15, 2023 | — |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| SC 13G | Ownership over 5% (passive) | Oct 21, 2022 | — |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Mar 22, 2021 | Mar 18, 2021 |
| 4 | Insider transaction | Mar 22, 2021 | Mar 18, 2021 |
| 4 | Insider transaction | Mar 22, 2021 | Mar 18, 2021 |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2020 | — |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4/A | Filing | Apr 2, 2020 | Sep 26, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 21, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 13, 2020 | — |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| 4 | Insider transaction | Dec 6, 2019 | Dec 4, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 23, 2019 | — |
| 4 | Insider transaction | Sep 30, 2019 | Sep 26, 2019 |
| 4 | Insider transaction | Sep 30, 2019 | Sep 26, 2019 |
| 3 | Initial insider ownership | Sep 30, 2019 | Sep 26, 2019 |
| SC 13G | Ownership over 5% (passive) | Sep 4, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Aug 7, 2019 | — |
| 3 | Initial insider ownership | Aug 5, 2019 | Jul 19, 2019 |
| SC 13D | Ownership over 5% (active) | Jul 29, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Jul 29, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Jul 25, 2019 | — |
| 4 | Insider transaction | Jul 23, 2019 | Jul 19, 2019 |
| SC 13G | Ownership over 5% (passive) | Mar 11, 2019 | — |
| 4 | Insider transaction | Jan 31, 2019 | Mar 14, 2018 |
| 4 | Insider transaction | Nov 30, 2018 | Nov 28, 2018 |
| 4 | Insider transaction | Nov 30, 2018 | Nov 28, 2018 |
| 4 | Insider transaction | Nov 30, 2018 | Nov 28, 2018 |
| 4 | Insider transaction | Nov 30, 2018 | Nov 28, 2018 |
| 4 | Insider transaction | Nov 17, 2017 | Nov 15, 2017 |
| 4 | Insider transaction | Nov 17, 2017 | Nov 15, 2017 |
| 4 | Insider transaction | Oct 30, 2017 | Oct 26, 2017 |
| 3 | Initial insider ownership | Oct 27, 2017 | Jan 23, 2014 |
| 3 | Initial insider ownership | Oct 27, 2017 | Jan 23, 2014 |
| 4 | Insider transaction | Oct 13, 2017 | Oct 11, 2017 |
| 4 | Insider transaction | Oct 13, 2017 | Oct 11, 2017 |
| 3 | Initial insider ownership | Sep 12, 2017 | Aug 14, 2017 |
| 3 | Initial insider ownership | Aug 29, 2017 | Aug 14, 2017 |
| 4 | Insider transaction | Aug 23, 2017 | Aug 9, 2017 |
| 4 | Insider transaction | Aug 22, 2017 | Aug 9, 2017 |
| 3 | Initial insider ownership | Aug 22, 2017 | Aug 14, 2017 |
| SC 13D | Ownership over 5% (active) | Jul 13, 2017 | — |
| 3/A | Ownership document | Jun 15, 2017 | Nov 1, 2016 |
| 3/A | Ownership document | Jun 15, 2017 | Nov 1, 2016 |
| 3/A | Ownership document | Jun 15, 2017 | Nov 1, 2016 |
| 4/A | Ownership document | Jun 15, 2017 | Dec 20, 2016 |
| 3/A | Ownership document | Jun 15, 2017 | Nov 1, 2016 |
| 4/A | Ownership document | Jun 15, 2017 | Dec 20, 2016 |
| 3/A | Ownership document | Jun 15, 2017 | Nov 1, 2016 |
| 4 | Insider transaction | Apr 4, 2017 | Apr 3, 2017 |
| 3 | Initial insider ownership | Apr 4, 2017 | Apr 3, 2017 |
| 3 | Initial insider ownership | Jan 6, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Dec 23, 2016 | Dec 20, 2016 |
| 4 | Insider transaction | Dec 23, 2016 | Dec 20, 2016 |
| 4 | Insider transaction | Dec 23, 2016 | Dec 20, 2016 |
| 4 | Insider transaction | Dec 23, 2016 | Dec 20, 2016 |
| 4 | Insider transaction | Dec 6, 2016 | Dec 2, 2016 |
| 3 | Initial insider ownership | Nov 30, 2016 | Nov 21, 2016 |
| SC 13D | Ownership over 5% (active) | Nov 22, 2016 | — |
| 3 | Initial insider ownership | Nov 22, 2016 | Nov 1, 2016 |
| 3 | Initial insider ownership | Nov 21, 2016 | Nov 1, 2016 |
| 3 | Initial insider ownership | Nov 21, 2016 | Nov 1, 2016 |
| 3 | Initial insider ownership | Nov 21, 2016 | Nov 1, 2016 |
| 3 | Initial insider ownership | Nov 15, 2016 | Nov 1, 2016 |
| 3 | Initial insider ownership | Nov 15, 2016 | Nov 1, 2016 |
Showing 118 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- XBIO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- NV
- Headquarters
- Framingham, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1534525
- Former names
- General Sales & Leasing, Inc. (until Jan 10, 2014); GENERAL AIRCRAFT INC. (until Feb 12, 2013)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.