Korsana Biosciences, Inc. SEC filings KRSA
Korsana Biosciences, Inc. has 391 filings in SEC EDGAR's recent list, going back to Oct 9, 2018. Its latest annual report, Form 10-K, was filed on Mar 30, 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 |
|---|---|---|---|
| 424B3 | Prospectus | Jul 24, 2026 | — |
| S-4/A | Filing | Jul 22, 2026 | — |
| S-4/A | Filing | Jul 10, 2026 | — |
| S-4/A | Filing | Jun 9, 2026 | — |
| S-4 | Registration for a merger or exchange | Apr 20, 2026 | — |
| 424B5 | Prospectus supplement | May 7, 2025 | — |
| S-3 | Shelf registration | May 6, 2025 | — |
| S-3 | Shelf registration | Feb 4, 2025 | — |
| S-8 | Employee stock plan registration | Jul 31, 2023 | — |
| S-8 | Employee stock plan registration | Aug 10, 2022 | — |
| S-8 | Employee stock plan registration | Jul 30, 2021 | — |
| 424B4 | Prospectus | Jun 24, 2021 | — |
| S-3/A | Filing | Jun 23, 2021 | — |
| S-3 | Shelf registration | Jun 16, 2021 | — |
| S-8 | Employee stock plan registration | Sep 22, 2020 | — |
| 424B5 | Prospectus supplement | Sep 3, 2020 | — |
| 424B4 | Prospectus | Aug 17, 2020 | — |
| S-3 | Shelf registration | Aug 7, 2020 | — |
| S-3/A | Form s-3/a | Jul 30, 2020 | — |
| S-3 | Shelf registration | Jul 24, 2020 | — |
| 424B3 | Prospectus | Apr 23, 2019 | — |
| S-1 | Registration statement | Apr 18, 2019 | — |
| S-8 | Employee stock plan registration | Mar 29, 2019 | — |
Showing 23 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- KRSA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Waltham, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1755237
- Former names
- Cyclerion Therapeutics, Inc. (until Aug 27, 2026)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- 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.