StoneBridge Acquisition Sponsor II LLC - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
StoneBridge Acquisition Sponsor II LLC is a corporate entity tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days.
Profile
StoneBridge Acquisition Sponsor II LLC is a corporate entity that reports beneficial ownership of shares in StoneBridge Acquisition II Corp (APAC) under U.S. securities law. It has submitted 1 SEC insider filing since 2026, most recently in February 2026.
| Filer type | Company |
|---|---|
| Role | 10% Owner |
| Notability | 20/100 |
Board memberships
- StoneBridge Acquisition II Corp
Reported roles
- 10% Owner
Trading Pattern
InsiderAlpha's records for StoneBridge Acquisition Sponsor II LLC go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role StoneBridge Acquisition Sponsor II LLC has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- 10% Owner at StoneBridge Acquisition II Corp (APAC) - 1 filing, 2026
Most Active Insiders Right Now
StoneBridge Acquisition Sponsor II LLC has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- SUMITOMO MITSUI FINANCIAL GROUP, INC.
- Suva
- SUVRETTA CAPITAL MANAGEMENT, LLC
- Donald William Swanson
- Synchron
- Kevin Tang
- Leonard M. Tannenbaum
- TCG Crossover GP II, LLC
Frequently Asked Questions
What is StoneBridge Acquisition Sponsor II LLC?
StoneBridge Acquisition Sponsor II LLC is a corporate entity that reports beneficial ownership of shares in StoneBridge Acquisition II Corp (APAC) under U.S. securities law. It has submitted 1 SEC insider filing since 2026, most recently in February 2026.…
Where can I see all of StoneBridge Acquisition Sponsor II LLC's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live StoneBridge Acquisition Sponsor II LLC profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.