STONEBRIDGE ACQUISITION II C APACU
UNIT 09/09/2030 · Unit · CUSIP G85096124
- SectorBlank check (SPAC)
- IndustryBlank Checks
- HeadquartersNew York, NY
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.04.
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2025 | 32 |
| Q4 2025 | 11 |
Biggest buyers
| MANGROVE PARTNERS IM, LLC | Added | +100.0k |
| TORONTO DOMINION BANK | Added | +22.3k |
| CITADEL ADVISORS LLC | New | +14.3k |
| HEIGHTS CAPITAL MANAGEMENT, INC | Added | +500 |
Biggest sellers
| GLAZER CAPITAL, LLC | Sold out | -400.0k |
| Decagon Asset Management LLP | Sold out | -396.6k |
| AQR Arbitrage LLC | Sold out | -375.0k |
| Shaolin Capital Management LLC | Sold out | -370.0k |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | Sold out | -365.0k |
| Meteora Capital, LLC | Sold out | -330.5k |
| ARISTEIA CAPITAL, L.L.C. | Sold out | -200.0k |
| Verition Fund Management LLC | Sold out | -200.0k |
| Clear Street Group Inc. | Reduced | -197.4k |
| WOLVERINE ASSET MANAGEMENT LLC | Sold out | -173.7k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| MIZUHO FINANCIAL GROUP INC 13G · institution new · filed 2026-02-12 | 9.0% |
| GLAZER CAPITAL, LLC 13G · institution -1.4 pts · filed 2026-02-12 | 6.6% |
| Shaolin Capital Management LLC 13G · passive investor new · filed 2025-11-14 | 6.3% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution new · filed 2025-11-14 | 6.1% |
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-11-24 | MIZUHO SECURITIES USA LLC 10% owner | Sold | $5.3m531.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| RIVERNORTH CAPITAL MANAGEMENT, LLC 0.23% of their portfolio | 494.5k $5.0m | Reduced -483 |
| MANGROVE PARTNERS IM, LLC 0.18% of their portfolio | 225.0k $2.3m | Added +100.0k |
| TORONTO DOMINION BANK 0.00% of their portfolio | 122.3k $1.2m | Added +22.3k |
| Crossingbridge Advisors, LLC 0.21% of their portfolio | 75.0k $753.0k | Reduced -50.0k |
| Yakira Capital Management, Inc. 0.22% of their portfolio | 65.0k $652.6k | Unchanged |
| Sandia Investment Management LP 1.50% of their portfolio | 60.0k $602.4k | Unchanged |
| Quarry LP 0.10% of their portfolio | 60.0k $603.6k | Unchanged |
| HEIGHTS CAPITAL MANAGEMENT, INC 0.19% of their portfolio | 50.5k $509.0k | Added +500 |
| Lineage Point Capital LP 0.15% of their portfolio | 39.8k $400.4k | First filing |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 14.3k $144.2k | New |
| Clear Street Group Inc. 0.00% of their portfolio | 6.8k $68.0k | Reduced -197.4k |