StoneBridge Acquisition II Corp SEC filings APACR
StoneBridge Acquisition II Corp has 64 filings in SEC EDGAR's recent list, going back to Nov 6, 2024. Its latest annual report, Form 10-K, was filed on Mar 18, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 21, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 6, 2026 | — |
| 8-K |
Current report
Other events
|
Sep 21, 2026 | Sep 21, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| 8-K |
Current report
Material agreement
|
Aug 14, 2026 | Aug 10, 2026 |
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 13, 2026 | — |
| 8-K |
Current report
Officer or director change
|
May 11, 2026 | May 8, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 20, 2026 | — |
| 10-K | Annual report | Mar 18, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 10, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 3, 2026 | Feb 2, 2026 |
| 3 | Initial insider ownership | Feb 2, 2026 | Feb 2, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 2, 2026 | — |
| 3 | Initial insider ownership | Nov 25, 2025 | Nov 21, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Jul 8, 2024 |
| 8-K |
Current report
Other events
|
Nov 18, 2025 | Nov 18, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 13, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 3 | Initial insider ownership | Oct 17, 2025 | Sep 29, 2025 |
| 3 | Initial insider ownership | Oct 9, 2025 | Sep 29, 2025 |
| 8-K |
Current report
Other events
|
Oct 7, 2025 | Oct 1, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change, Bylaw or fiscal year change, Other events
|
Oct 6, 2025 | Sep 30, 2025 |
| 3 | Initial insider ownership | Oct 3, 2025 | Sep 29, 2025 |
| 3 | Initial insider ownership | Oct 3, 2025 | Sep 29, 2025 |
| 424B4 | Prospectus | Oct 1, 2025 | — |
| EFFECT | Filing | Sep 30, 2025 | — |
| 3 | Initial insider ownership | Sep 29, 2025 | Sep 29, 2025 |
| 3 | Initial insider ownership | Sep 29, 2025 | Sep 29, 2025 |
| 3 | Initial insider ownership | Sep 29, 2025 | Sep 29, 2025 |
| CERT | Filing | Sep 29, 2025 | — |
| 8-A12B | Filing | Sep 26, 2025 | — |
| CORRESP | Letter to the SEC | Sep 25, 2025 | — |
| CORRESP | Letter to the SEC | Sep 25, 2025 | — |
| CORRESP | Letter to the SEC | Sep 17, 2025 | — |
| UPLOAD | Letter from the SEC | Sep 16, 2025 | — |
| S-1/A | Amended registration statement | Sep 9, 2025 | — |
| S-1/A | Amended registration statement | Aug 22, 2025 | — |
| CORRESP | Letter to the SEC | Aug 22, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 12, 2025 | — |
| S-1/A | Amended registration statement | Aug 1, 2025 | — |
| CORRESP | Letter to the SEC | Aug 1, 2025 | — |
| UPLOAD | Letter from the SEC | Jul 16, 2025 | — |
| S-1/A | Amended registration statement | Jul 7, 2025 | — |
| CORRESP | Letter to the SEC | Jul 7, 2025 | — |
| UPLOAD | Letter from the SEC | May 29, 2025 | — |
| DRSLTR | Filing | May 5, 2025 | — |
| S-1 | Registration statement | May 5, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 2, 2024 | — |
| DRS | Filing | Nov 6, 2024 | — |
Showing 64 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.
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Company profile
- Industry
- Blank Checks (SIC 6770)
- Listed as
- APAC (Nasdaq), APACR (Nasdaq), APACU (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- New York, NY
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2043630
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.