Outlook Therapeutics, Inc. SEC filings OTLK
Outlook Therapeutics, Inc. has 833 filings in SEC EDGAR's recent list, going back to Aug 10, 2015. Its latest annual report, Form ARS, was filed on Jan 26, 2026 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 18, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 30, 2026 (listing notice). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 13, 2026 | — |
| 8-K |
Current report
Listing notice
|
Sep 30, 2026 | Sep 25, 2026 |
| 8-K |
Current report
Other events
|
Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 3 | Initial insider ownership | Sep 2, 2026 | Sep 1, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 27, 2026 | Aug 23, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 19, 2026 | — |
| 10-Q | Quarterly report | Aug 18, 2026 | Jun 30, 2026 |
| NT 10-Q | Filing | Aug 17, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 14, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 14, 2026 |
| 8-K |
Current report
Other events
|
Aug 14, 2026 | Aug 12, 2026 |
| 424B5 | Prospectus supplement | Aug 14, 2026 | — |
| 8-K |
Current report
Results of operations
|
Aug 14, 2026 | Aug 14, 2026 |
| 424B5 | Prospectus supplement | Aug 12, 2026 | — |
| 8-K |
Current report
Results of operations, Other events
|
Aug 12, 2026 | Aug 12, 2026 |
| 4 | Insider transaction | Jul 29, 2026 | Jul 29, 2026 |
| 8-K |
Current report
Other events
|
Jul 24, 2026 | Jul 24, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 24, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Jul 23, 2026 | Jul 21, 2026 |
| 4 | Insider transaction | Jul 23, 2026 | Jul 21, 2026 |
| EFFECT | Filing | Jul 21, 2026 | — |
| 424B3 | Prospectus | Jul 21, 2026 | — |
| S-3 | Shelf registration | Jul 17, 2026 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jul 16, 2026 | Jul 16, 2026 |
| DEFA14A | Additional proxy material | Jul 10, 2026 | — |
| DRS | Filing | Jul 8, 2026 | — |
| 8-K |
Current report
Listing notice
|
Jun 26, 2026 | Jun 26, 2026 |
| 8-K |
Current report
Other events
|
Jun 16, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 1, 2026 | — |
| 4 | Insider transaction | Jun 1, 2026 | May 28, 2026 |
| DEFA14A | Additional proxy material | Jun 1, 2026 | — |
| DEF 14A | Proxy statement | Jun 1, 2026 | Jul 16, 2026 |
| 8-K |
Current report
Other events
|
Jun 1, 2026 | Jun 1, 2026 |
| 8-K |
Current report
Other events
|
May 29, 2026 | May 29, 2026 |
| 424B5 | Prospectus supplement | May 29, 2026 | — |
| 8-K |
Current report
Other events
|
May 28, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 8-K |
Current report
Other events
|
May 26, 2026 | May 26, 2026 |
| PRE 14A | Preliminary proxy statement | May 22, 2026 | Jul 16, 2026 |
| 8-K |
Current report
Results of operations
|
May 18, 2026 | May 15, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| 424B5 | Prospectus supplement | May 13, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended, Results of operations
|
May 13, 2026 | May 12, 2026 |
| D | Filing | May 7, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 24, 2026 | — |
| 8-K |
Current report
Unregistered share sale, Other events
|
Apr 23, 2026 | Apr 22, 2026 |
| 424B5 | Prospectus supplement | Apr 23, 2026 | — |
| 8-K |
Current report
Other events
|
Apr 21, 2026 | Apr 21, 2026 |
| 8-K |
Current report
Other events
|
Apr 7, 2026 | Apr 7, 2026 |
| 8-K |
Current report
Other events
|
Mar 25, 2026 | Mar 23, 2026 |
| 424B5 | Prospectus supplement | Mar 25, 2026 | — |
| 424B5 | Prospectus supplement | Mar 23, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 16, 2026 | Mar 13, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 11, 2026 | Mar 6, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Mar 10, 2026 | Mar 10, 2026 |
| 8-K |
Current report
Other events
|
Mar 5, 2026 | Mar 5, 2026 |
| 8-K |
Current report
Listing notice
|
Feb 18, 2026 | Feb 18, 2026 |
| 10-Q | Quarterly report | Feb 17, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2026 | Feb 17, 2026 |
| 8-K |
Current report
Other events
|
Feb 11, 2026 | Feb 11, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2026 | — |
| ARS | Annual report to shareholders | Jan 26, 2026 | Sep 30, 2025 |
| DEFA14A | Additional proxy material | Jan 26, 2026 | — |
| DEF 14A | Proxy statement | Jan 26, 2026 | Mar 10, 2026 |
| 8-K |
Current report
Other events
|
Jan 2, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Dec 19, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Dec 19, 2025 | Dec 19, 2025 |
| 8-K |
Current report
Other events
|
Nov 13, 2025 | Nov 13, 2025 |
| 8-K |
Current report
Other events
|
Nov 3, 2025 | Nov 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 21, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 8-K |
Current report
Other events
|
Sep 29, 2025 | Sep 29, 2025 |
| 8-K |
Current report
Officer or director change
|
Sep 5, 2025 | Sep 5, 2025 |
| 8-K |
Current report
Other events
|
Sep 2, 2025 | Aug 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2025 | Aug 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2025 | — |
| 4 | Insider transaction | Jul 9, 2025 | Jul 1, 2025 |
| 3 | Initial insider ownership | Jul 9, 2025 | Jul 1, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2025 | Jun 28, 2025 |
| 8-K |
Current report
Other events
|
Jun 2, 2025 | Jun 2, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 28, 2025 | — |
| 4 | Insider transaction | May 28, 2025 | May 27, 2025 |
| 424B5 | Prospectus supplement | May 23, 2025 | — |
| 8-K |
Current report
Other events
|
May 23, 2025 | May 22, 2025 |
| 424B5 | Prospectus supplement | May 22, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 15, 2025 | May 15, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 424B3 | Prospectus | May 14, 2025 | — |
| 424B3 | Prospectus | May 14, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Apr 11, 2025 | Apr 9, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 10, 2025 | — |
| 8-K |
Current report
Other events
|
Apr 8, 2025 | Apr 8, 2025 |
| EFFECT | Filing | Mar 28, 2025 | — |
| 424B3 | Prospectus | Mar 28, 2025 | — |
| CORRESP | Letter to the SEC | Mar 26, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 26, 2025 | — |
| S-3 | Shelf registration | Mar 20, 2025 | — |
| 8-K |
Current report
Agreement ended, Bylaw or fiscal year change, Shareholder vote results
|
Mar 14, 2025 | Mar 11, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 12, 2025 | — |
| 4/A | Filing | Mar 12, 2025 | Jan 17, 2025 |
| EFFECT | Filing | Mar 7, 2025 | — |
| 424B3 | Prospectus | Mar 7, 2025 | — |
| CORRESP | Letter to the SEC | Mar 5, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 4, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 3, 2025 | — |
| S-3 | Shelf registration | Feb 28, 2025 | — |
| 8-K |
Current report
Other events
|
Feb 28, 2025 | Feb 28, 2025 |
| 10-Q | Quarterly report | Feb 14, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 8-K |
Current report
Results of operations
|
Feb 14, 2025 | Feb 14, 2025 |
| ARS | Annual report to shareholders | Feb 10, 2025 | Sep 30, 2024 |
| DEF 14A | Proxy statement | Feb 10, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| PRE 14A | Preliminary proxy statement | Jan 31, 2025 | Jan 31, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Officer or director change
|
Jan 31, 2025 | Jan 30, 2025 |
| D | Filing | Jan 27, 2025 | — |
| 10-K/A | Amended annual report | Jan 23, 2025 | Sep 30, 2024 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 22, 2025 | — |
| 4 | Insider transaction | Jan 22, 2025 | Jan 17, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Other events
|
Jan 16, 2025 | Jan 16, 2025 |
| 10-K | Annual report | Dec 27, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Dec 27, 2024 | Dec 27, 2024 |
| 8-K |
Current report
Exit or restructuring costs
|
Dec 16, 2024 | Dec 10, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 4, 2024 | Dec 3, 2024 |
| 8-K |
Current report
Other events
|
Nov 27, 2024 | Nov 27, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 7, 2024 | — |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Sep 30, 2024 | Sep 26, 2024 |
| S-8 | Employee stock plan registration | Aug 14, 2024 | — |
| 10-Q | Quarterly report | Aug 14, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2024 | Aug 14, 2024 |
| 8-K |
Current report
Other events
|
Jul 8, 2024 | Jul 8, 2024 |
| DEF 14A | Proxy statement | Jun 26, 2024 | Aug 12, 2024 |
| PRE 14A | Preliminary proxy statement | Jun 14, 2024 | Aug 12, 2024 |
| 8-K |
Current report
Other events
|
May 28, 2024 | May 28, 2024 |
| 8-K |
Current report
Results of operations
|
May 15, 2024 | May 15, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Other events
|
May 13, 2024 | May 13, 2024 |
| EFFECT | Filing | May 6, 2024 | — |
| 424B3 | Prospectus | May 6, 2024 | — |
| CORRESP | Letter to the SEC | May 2, 2024 | — |
| UPLOAD | Letter from the SEC | May 1, 2024 | — |
| 8-K |
Current report
Other events
|
May 1, 2024 | May 1, 2024 |
| S-3 | Shelf registration | Apr 26, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 17, 2024 | — |
| 4 | Insider transaction | Apr 17, 2024 | Apr 15, 2024 |
| D | Filing | Apr 16, 2024 | — |
| 8-K |
Current report
Unregistered share sale
|
Apr 15, 2024 | Apr 15, 2024 |
| 424B5 | Prospectus supplement | Apr 12, 2024 | — |
| 8-K |
Current report
Other events
|
Apr 12, 2024 | Apr 12, 2024 |
| SC 13G | Ownership over 5% (passive) | Apr 8, 2024 | — |
| EFFECT | Filing | Apr 5, 2024 | — |
| CORRESP | Letter to the SEC | Apr 3, 2024 | — |
| UPLOAD | Letter from the SEC | Apr 3, 2024 | — |
| 8-K |
Current report
Other events
|
Apr 2, 2024 | Apr 1, 2024 |
| EFFECT | Filing | Apr 1, 2024 | — |
| 424B3 | Prospectus | Apr 1, 2024 | — |
| D | Filing | Mar 29, 2024 | — |
| 4 | Insider transaction | Mar 29, 2024 | Mar 28, 2024 |
| S-8 | Employee stock plan registration | Mar 28, 2024 | — |
| S-3 | Shelf registration | Mar 28, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Mar 28, 2024 | — |
| CORRESP | Letter to the SEC | Mar 28, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Mar 28, 2024 | — |
| UPLOAD | Letter from the SEC | Mar 28, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Mar 26, 2024 | Mar 20, 2024 |
| S-3 | Shelf registration | Mar 25, 2024 | — |
| 4 | Insider transaction | Mar 22, 2024 | Mar 20, 2024 |
| 4 | Insider transaction | Mar 22, 2024 | Mar 20, 2024 |
| 4 | Insider transaction | Mar 22, 2024 | Mar 20, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 20, 2024 | — |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- OTLK (Nasdaq)
- Fiscal year ends
- September 30
- Incorporated in
- DE
- Headquarters
- Iselin, NJ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1649989
- Former names
- Oncobiologics, Inc. (until Nov 13, 2018)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.