Cabaletta Bio, Inc. SEC filings CABA
Cabaletta Bio, Inc. has 448 filings in SEC EDGAR's recent list, going back to Dec 10, 2018. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| 8-K |
Current report
Other events
|
Sep 14, 2026 | Sep 14, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2026 | Aug 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 23, 2026 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 5, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 4, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 3, 2026 | Jun 3, 2026 |
| DEFA14A | Additional proxy material | Jun 1, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 10-Q | Quarterly report | May 14, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 14, 2026 | May 14, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 14, 2026 | May 14, 2026 |
| 8-K |
Current report
Material agreement, Results of operations, Other events
|
May 4, 2026 | May 4, 2026 |
| 424B5 | Prospectus supplement | May 4, 2026 | — |
| 8-K |
Current report
Other events
|
May 4, 2026 | May 4, 2026 |
| ARS | Annual report to shareholders | Apr 28, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 28, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Jun 9, 2026 |
| 8-K |
Current report
Other events
|
Apr 20, 2026 | Apr 20, 2026 |
| PRE 14A | Preliminary proxy statement | Apr 17, 2026 | Jun 9, 2026 |
| S-8 | Employee stock plan registration | Mar 23, 2026 | — |
| 10-K | Annual report | Mar 23, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 23, 2026 | Mar 23, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 18, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 21, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 12, 2026 | Jan 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 10-Q | Quarterly report | Nov 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2025 | Nov 10, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 7, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 7, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 7, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 29, 2025 | Oct 29, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 27, 2025 | Oct 27, 2025 |
| 4 | Insider transaction | Oct 15, 2025 | Oct 13, 2025 |
| 3 | Initial insider ownership | Oct 15, 2025 | Oct 13, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 9, 2025 | Oct 9, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 3, 2025 | Sep 3, 2025 |
| EFFECT | Filing | Aug 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| CORRESP | Letter to the SEC | Aug 13, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 11, 2025 | — |
| S-3 | Shelf registration | Aug 7, 2025 | — |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 16, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 20, 2025 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jun 12, 2025 | Jun 11, 2025 |
| 424B5 | Prospectus supplement | Jun 12, 2025 | — |
| 424B5 | Prospectus supplement | Jun 11, 2025 | — |
| 8-K |
Current report
Agreement ended, Regulation FD disclosure, Other events
|
Jun 11, 2025 | Jun 11, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 10, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 8-K |
Current report
Officer or director change
|
May 19, 2025 | May 15, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 15, 2025 | May 15, 2025 |
| ARS | Annual report to shareholders | May 13, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | May 13, 2025 | Jun 9, 2025 |
| PRE 14A | Preliminary proxy statement | Apr 30, 2025 | Jun 9, 2025 |
| EFFECT | Filing | Mar 31, 2025 | — |
| S-8 | Employee stock plan registration | Mar 31, 2025 | — |
| POS AM | Filing | Mar 31, 2025 | — |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| POSASR | Filing | Mar 31, 2025 | — |
| 8-K |
Current report
Results of operations
|
Mar 31, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 8-K/A |
Amended current report
Regulation FD disclosure, Other events
|
Feb 18, 2025 | Feb 18, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Feb 18, 2025 | Feb 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jan 13, 2025 | Jan 13, 2025 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 6, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 5, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 5, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 18, 2024 | Nov 18, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2024 | Nov 14, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 17, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 7, 2024 | Oct 7, 2024 |
| 8-K |
Current report
Material agreement
|
Sep 30, 2024 | Sep 30, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 22, 2024 | — |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 14, 2024 | Jun 14, 2024 |
| SC 13G | Ownership over 5% (passive) | Jun 10, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jun 6, 2024 | — |
| 4 | Insider transaction | Jun 4, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 3, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 4, 2024 | Jun 3, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 15, 2024 | May 15, 2024 |
| ARS | Annual report to shareholders | Apr 23, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 23, 2024 | — |
| DEF 14A | Proxy statement | Apr 23, 2024 | Jun 3, 2024 |
| S-3ASR | Automatic shelf registration | Mar 21, 2024 | — |
| S-8 | Employee stock plan registration | Mar 21, 2024 | — |
| 10-K | Annual report | Mar 21, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 21, 2024 | Mar 21, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 20, 2024 | Mar 20, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Feb 1, 2024 | Feb 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 24, 2024 | — |
| 4 | Insider transaction | Jan 19, 2024 | Jan 19, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 8, 2024 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jan 8, 2024 | Jan 8, 2024 |
| 4 | Insider transaction | Dec 19, 2023 | Dec 19, 2023 |
| 4 | Insider transaction | Nov 21, 2023 | Nov 20, 2023 |
| 144 | Notice of proposed sale | Nov 20, 2023 | — |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 6, 2023 | Nov 6, 2023 |
| 4 | Insider transaction | Oct 19, 2023 | Oct 19, 2023 |
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
- CABA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Philadelphia, PA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1759138
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.