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 |
|---|---|---|---|
| 8-K |
Current report
Regulation FD disclosure
|
Sep 23, 2026 | Sep 23, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 18, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Sep 16, 2026 | Sep 14, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2026 | Aug 7, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 8-K |
Current report
Results of operations
|
May 13, 2026 | May 13, 2026 |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 10-K/A | Amended annual report | Apr 24, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 24, 2026 | Apr 21, 2026 |
| 4 | Insider transaction | Apr 23, 2026 | Apr 21, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2026 | Mar 13, 2026 |
| 10-K | Annual report | Mar 12, 2026 | Dec 31, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 12, 2026 | — |
| 8-K |
Current report
Other events
|
Jan 9, 2026 | Jan 8, 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 |
| DEFA14A | Additional proxy material | Dec 11, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 11, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2025 | Nov 13, 2025 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| ARS | Annual report to shareholders | Oct 31, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Oct 31, 2025 | — |
| DEF 14A | Proxy statement | Oct 31, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 14, 2025 | Oct 10, 2025 |
| 424B5 | Prospectus supplement | Oct 14, 2025 | — |
| 424B5 | Prospectus supplement | Oct 10, 2025 | — |
| 8-K |
Current report
Results of operations
|
Aug 13, 2025 | Aug 13, 2025 |
| 10-Q | Quarterly report | Aug 12, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
May 14, 2025 | May 14, 2025 |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| 10-K/A | Amended annual report | May 13, 2025 | Dec 31, 2024 |
| 10-K/A | Amended annual report | Apr 29, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Auditor change
|
Apr 10, 2025 | Apr 8, 2025 |
| 8-K/A | Amended current report | Mar 19, 2025 | Mar 19, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 19, 2025 | Mar 19, 2025 |
| 10-K | Annual report | Mar 18, 2025 | Dec 31, 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 | Dec 13, 2024 | Dec 11, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Dec 13, 2024 | Dec 11, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2024 | Nov 13, 2024 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Nov 7, 2024 | Nov 1, 2024 |
| EFFECT | Filing | Nov 1, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Oct 31, 2024 | Oct 29, 2024 |
| ARS | Annual report to shareholders | Oct 31, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Oct 31, 2024 | — |
| DEF 14A | Proxy statement | Oct 31, 2024 | Dec 11, 2024 |
| CORRESP | Letter to the SEC | Oct 30, 2024 | — |
| UPLOAD | Letter from the SEC | Oct 25, 2024 | — |
| S-3 | Shelf registration | Oct 21, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 14, 2024 | Aug 14, 2024 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 25-NSE | Delisting notice | Jul 18, 2024 | — |
| 4 | Insider transaction | Jun 21, 2024 | Jun 18, 2024 |
| 8-K |
Current report
Officer or director change
|
Jun 21, 2024 | Jun 18, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 22, 2024 | May 16, 2024 |
| 8-K |
Current report
Results of operations
|
May 10, 2024 | May 10, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 10-K/A | Amended annual report | Apr 26, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 22, 2024 | Mar 22, 2024 |
| 10-K | Annual report | Mar 21, 2024 | Dec 31, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 18, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 12, 2024 | Feb 12, 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 |
| 8-K |
Current report
Shareholder vote results
|
Dec 8, 2023 | Dec 6, 2023 |
| ARS | Annual report to shareholders | Nov 13, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Nov 13, 2023 | Dec 6, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2023 | Nov 10, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 18, 2023 | — |
| 8-K |
Current report
Results of operations
|
Aug 11, 2023 | Aug 11, 2023 |
| 10-Q | Quarterly report | Aug 10, 2023 | Jun 30, 2023 |
| SC 13D | Ownership over 5% (active) | Jun 15, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 6, 2023 | Jun 6, 2023 |
| 8-K |
Current report
Other events
|
Jun 2, 2023 | May 30, 2023 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Regulation FD disclosure
|
May 12, 2023 | May 11, 2023 |
| 8-K |
Current report
Results of operations
|
May 11, 2023 | May 11, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 10-K/A | Amended annual report | Apr 28, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 23, 2023 | Mar 23, 2023 |
| 10-K | Annual report | Mar 22, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Dec 22, 2022 | Dec 21, 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 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 7, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Dec 9, 2022 | Dec 7, 2022 |
| 8-K |
Current report
Listing notice
|
Dec 2, 2022 | Dec 1, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2022 | Nov 10, 2022 |
| 10-Q | Quarterly report | Nov 9, 2022 | Sep 30, 2022 |
| SC 13G | Ownership over 5% (passive) | Oct 21, 2022 | — |
| DEFA14A | Additional proxy material | Oct 17, 2022 | — |
| DEF 14A | Proxy statement | Oct 17, 2022 | Dec 7, 2022 |
| D | Filing | Oct 13, 2022 | — |
| 8-K |
Current report
Unregistered share sale
|
Oct 12, 2022 | Oct 12, 2022 |
| PRE 14A | Preliminary proxy statement | Oct 3, 2022 | Dec 7, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2022 | Aug 12, 2022 |
| 10-Q | Quarterly report | Aug 11, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jul 7, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Listing notice
|
Jun 6, 2022 | Jun 3, 2022 |
| 10-Q | Quarterly report | May 12, 2022 | Mar 31, 2022 |
| D | Filing | May 4, 2022 | — |
| 10-K/A | Amended annual report | Apr 28, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Regulation FD disclosure
|
Apr 27, 2022 | Apr 26, 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 |
| 8-K |
Current report
Results of operations
|
Mar 23, 2022 | Mar 23, 2022 |
| 10-K | Annual report | Mar 22, 2022 | Dec 31, 2021 |
| S-8 | Employee stock plan registration | Dec 30, 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 | Dec 9, 2021 | Dec 7, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Dec 9, 2021 | Dec 7, 2021 |
| DEFA14A | Additional proxy material | Dec 2, 2021 | — |
| 8-K |
Current report
Material agreement
|
Nov 19, 2021 | Nov 19, 2021 |
| 424B5 | Prospectus supplement | Nov 19, 2021 | — |
| 8-K |
Current report
Material agreement
|
Nov 16, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2021 | Nov 12, 2021 |
| 10-Q | Quarterly report | Nov 12, 2021 | Sep 30, 2021 |
| EFFECT | Filing | Oct 22, 2021 | — |
| CORRESP | Letter to the SEC | Oct 20, 2021 | — |
| S-3/A | Amendment to form s-3 | Oct 20, 2021 | — |
| UPLOAD | Letter from the SEC | Oct 19, 2021 | — |
| DEF 14A | Proxy statement | Oct 15, 2021 | Dec 7, 2021 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Oct 15, 2021 | Oct 12, 2021 |
| S-3 | Shelf registration | Oct 12, 2021 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 13, 2021 | Sep 13, 2021 |
| EFFECT | Filing | Aug 23, 2021 | — |
| CORRESP | Letter to the SEC | Aug 19, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 18, 2021 | — |
| S-3 | Shelf registration | Aug 13, 2021 | — |
| 8-K |
Current report
Results of operations
|
Aug 13, 2021 | Aug 13, 2021 |
| 10-Q | Quarterly report | Aug 12, 2021 | Jun 30, 2021 |
| D | Filing | Aug 3, 2021 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Jul 28, 2021 | Jul 26, 2021 |
| 8-K |
Current report
Officer or director change
|
Jul 16, 2021 | Jul 15, 2021 |
| 8-K |
Current report
Results of operations
|
May 12, 2021 | May 12, 2021 |
| 10-Q | Quarterly report | May 11, 2021 | Mar 31, 2021 |
| 10-K/A | Amended annual report | Apr 28, 2021 | Dec 31, 2020 |
| 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 |
| 8-K |
Current report
Results of operations
|
Mar 17, 2021 | Mar 17, 2021 |
| 10-K | Annual report | Mar 16, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 19, 2021 | Jan 19, 2021 |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2020 | — |
| 8-K |
Current report
Other events
|
Dec 16, 2020 | Dec 11, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 14, 2020 | Dec 10, 2020 |
| 424B5 | Prospectus supplement | Dec 11, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 9, 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 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2020 | Nov 13, 2020 |
| 10-Q | Quarterly report | Nov 12, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Listing notice
|
Oct 30, 2020 | Oct 29, 2020 |
| UPLOAD | Letter from the SEC | Oct 14, 2020 | — |
| DEF 14A | Proxy statement | Oct 13, 2020 | Dec 4, 2020 |
| CORRESP | Letter to the SEC | Oct 6, 2020 | — |
| UPLOAD | Letter from the SEC | Oct 5, 2020 | — |
| PRE 14A | Preliminary proxy statement | Sep 30, 2020 | Dec 4, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2020 | Aug 13, 2020 |
| 10-Q | Quarterly report | Aug 12, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Other events
|
Jun 24, 2020 | Jun 22, 2020 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jun 16, 2020 | Jun 12, 2020 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
May 19, 2020 | May 15, 2020 |
| 10-Q | Quarterly report | May 14, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 14, 2020 | May 14, 2020 |
| 10-K/A | Amended annual report | Apr 29, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Listing notice
|
Apr 24, 2020 | Apr 20, 2020 |
| 4/A | Filing | Apr 2, 2020 | Sep 26, 2019 |
| S-8 | Employee stock plan registration | Apr 1, 2020 | — |
| 8-K |
Current report
Results of operations
|
Mar 27, 2020 | Mar 27, 2020 |
| 10-K | Annual report | Mar 26, 2020 | Dec 31, 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 | — |
Showing 200 filings, the most recent 200. 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)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
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- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.