Kalaris Therapeutics, Inc. SEC filings KLRS
Kalaris Therapeutics, Inc. has 699 filings in SEC EDGAR's recent list, going back to Oct 2, 2018. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 11, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 26, 2026 | — |
| 4 | Insider transaction | Aug 28, 2026 | Aug 27, 2026 |
| 10-Q | Quarterly report | Aug 11, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2026 | Aug 11, 2026 |
| 4 | Insider transaction | Aug 3, 2026 | Aug 1, 2026 |
| 3 | Initial insider ownership | Aug 3, 2026 | Aug 1, 2026 |
| 3 | Initial insider ownership | Jul 27, 2026 | Jul 27, 2026 |
| 4 | Insider transaction | Jul 20, 2026 | Jul 20, 2026 |
| 3 | Initial insider ownership | Jul 20, 2026 | Jul 20, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 20, 2026 | Jul 14, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jul 17, 2026 | Jul 17, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 6, 2026 | Jul 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 4, 2026 | Jun 3, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 22, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 12, 2026 | May 12, 2026 |
| ARS | Annual report to shareholders | Apr 24, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 24, 2026 | — |
| DEF 14A | Proxy statement | Apr 24, 2026 | Jun 3, 2026 |
| EFFECT | Filing | Apr 13, 2026 | — |
| EFFECT | Filing | Apr 13, 2026 | — |
| 424B3 | Prospectus | Apr 13, 2026 | — |
| 424B3 | Prospectus | Apr 13, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Apr 10, 2026 | Apr 8, 2026 |
| CORRESP | Letter to the SEC | Apr 9, 2026 | — |
| CORRESP | Letter to the SEC | Apr 9, 2026 | — |
| UPLOAD | Letter from the SEC | Apr 8, 2026 | — |
| UPLOAD | Letter from the SEC | Apr 8, 2026 | — |
| S-3 | Shelf registration | Apr 3, 2026 | — |
| S-3 | Shelf registration | Apr 3, 2026 | — |
| 4 | Insider transaction | Mar 23, 2026 | Mar 19, 2026 |
| 144 | Notice of proposed sale | Mar 20, 2026 | — |
| 4 | Insider transaction | Mar 20, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 19, 2026 |
| S-8 | Employee stock plan registration | Mar 17, 2026 | — |
| 10-K | Annual report | Mar 17, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 17, 2026 | Mar 17, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 9, 2026 | Mar 9, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Dec 18, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 22, 2025 | — |
| 4 | Insider transaction | Dec 22, 2025 | Dec 22, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Dec 18, 2025 | Dec 17, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 17, 2025 | Dec 17, 2025 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 3, 2025 | Nov 3, 2025 |
| 3 | Initial insider ownership | Nov 3, 2025 | Nov 3, 2025 |
| 8-K |
Current report
Officer or director change
|
Nov 3, 2025 | Oct 28, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Aug 13, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2025 | Aug 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| ARS | Annual report to shareholders | Jul 1, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Jul 1, 2025 | — |
| DEF 14A | Proxy statement | Jul 1, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Other events
|
Jun 20, 2025 | Jun 19, 2025 |
| S-8 | Employee stock plan registration | Jun 4, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 14, 2025 | May 14, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 16, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 11, 2025 | Apr 10, 2025 |
| 3 | Initial insider ownership | Apr 4, 2025 | Apr 3, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 4, 2025 | Apr 3, 2025 |
| 4 | Insider transaction | Mar 27, 2025 | Mar 26, 2025 |
| 3/A | Filing | Mar 26, 2025 | Mar 18, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 25, 2025 | — |
| 3 | Initial insider ownership | Mar 25, 2025 | Mar 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 20, 2025 | — |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 3 | Initial insider ownership | Mar 18, 2025 | Mar 18, 2025 |
| 8-K |
Current report
Acquisition or sale of assets, Results of operations, Change in control, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure
|
Mar 18, 2025 | Mar 18, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
Mar 12, 2025 | Mar 12, 2025 |
| 10-K | Annual report | Mar 7, 2025 | Dec 31, 2024 |
| 424B3 | Prospectus | Feb 28, 2025 | — |
| 4 | Insider transaction | Feb 24, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 21, 2025 |
| 144 | Notice of proposed sale | Feb 24, 2025 | — |
| 144 | Notice of proposed sale | Feb 24, 2025 | — |
| 144 | Notice of proposed sale | Feb 24, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SEC STAFF LETTER | Filing | Feb 10, 2025 | — |
| EFFECT | Filing | Feb 10, 2025 | — |
| 424B3 | Prospectus | Feb 10, 2025 | — |
| CORRESP | Letter to the SEC | Feb 6, 2025 | — |
| CORRESP | Letter to the SEC | Feb 3, 2025 | — |
| S-4/A | Filing | Feb 3, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 28, 2025 | — |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 4 | Insider transaction | Jan 27, 2025 | Jan 23, 2025 |
| 144 | Notice of proposed sale | Jan 24, 2025 | — |
| 144 | Notice of proposed sale | Jan 24, 2025 | — |
| 144 | Notice of proposed sale | Jan 24, 2025 | — |
| CORRESP | Letter to the SEC | Jan 17, 2025 | — |
| S-4/A | Filing | Jan 17, 2025 | — |
| 425 | Filing | Jan 15, 2025 | — |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jan 15, 2025 | Jan 15, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 144 | Notice of proposed sale | Jan 10, 2025 | — |
| 144 | Notice of proposed sale | Jan 10, 2025 | — |
| 144 | Notice of proposed sale | Jan 10, 2025 | — |
| 425 | Filing | Jan 10, 2025 | — |
| 8-K |
Current report
Other events
|
Jan 10, 2025 | Jan 9, 2025 |
| 425 | Filing | Jan 10, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jan 10, 2025 | Jan 9, 2025 |
| SEC STAFF LETTER | Filing | Jan 7, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 6, 2025 | — |
| 425 | Filing | Dec 20, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Dec 20, 2024 | Dec 19, 2024 |
| 4 | Insider transaction | Dec 11, 2024 | Dec 11, 2024 |
| S-4 | Registration for a merger or exchange | Dec 9, 2024 | — |
| 425 | Filing | Dec 9, 2024 | — |
| DEF 14A | Proxy statement | Dec 6, 2024 | Jan 9, 2025 |
| PRE 14A | Preliminary proxy statement | Nov 26, 2024 | Nov 26, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 425 | Filing | Nov 8, 2024 | — |
| 425 | Filing | Nov 8, 2024 | — |
| 425 | Filing | Nov 8, 2024 | — |
| 425 | Filing | Nov 8, 2024 | — |
| 425 | Filing | Nov 8, 2024 | — |
| 425 | Filing | Nov 8, 2024 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 4 | Insider transaction | Oct 23, 2024 | Oct 21, 2024 |
| 4 | Insider transaction | Oct 23, 2024 | Oct 21, 2024 |
| 4 | Insider transaction | Oct 23, 2024 | Oct 21, 2024 |
| 4 | Insider transaction | Oct 23, 2024 | Oct 21, 2024 |
| 144 | Notice of proposed sale | Oct 22, 2024 | — |
| 144 | Notice of proposed sale | Oct 22, 2024 | — |
| 144 | Notice of proposed sale | Oct 22, 2024 | — |
| 144 | Notice of proposed sale | Oct 21, 2024 | — |
| 144 | Notice of proposed sale | Oct 21, 2024 | — |
| 144 | Notice of proposed sale | Oct 21, 2024 | — |
| 144 | Notice of proposed sale | Oct 21, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 11, 2024 | — |
| 4 | Insider transaction | Oct 4, 2024 | Oct 3, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 3, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 3, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 3, 2024 |
| 144 | Notice of proposed sale | Oct 3, 2024 | — |
| 144 | Notice of proposed sale | Oct 3, 2024 | — |
| 144 | Notice of proposed sale | Oct 3, 2024 | — |
| 144 | Notice of proposed sale | Oct 3, 2024 | — |
| 4 | Insider transaction | Aug 22, 2024 | Aug 20, 2024 |
| 144 | Notice of proposed sale | Aug 21, 2024 | — |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- KLRS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Berkeley Heights, NJ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1754068
- Former names
- Allovir, Inc. (until Mar 12, 2025); ViraCyte, Inc. (until Oct 2, 2018)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.