APAC · StoneBridge Acquisition II Corp
$10.24
At close · Aug 28
Going-concern doubt
— flagged Aug 14, 2026
Substantial doubt about the company's ability to continue as a going concern.
“Such conditions, coupled with our lack of operating revenues and dependence on the Trust Account, raises substantial doubt about our ability to continue as a going concern within one year after the date our unaudited condensed financial statements included in this Report are issued. There is no assurance that our plans to consummate an initial business combination will be successful or successful within the completion window.”View the 10-Q filed Aug 14, 2026
Market Cap
$82.44M
Shares
8.05M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 36
Total Value: $56,597,254
Total Shares: 10,010,472
Institutional Ownership Trend
4 quarters
Holder Concentration
Across 36 13F filers · Δ vs Mar 31, 2026Top Holder
9.8%
−0.1 pts
Top 5
40.6%
+0.2 pts
Top 10
64.1%
+0.6 pts
HHI
532
Broadly held+6
Quarterly Activity
vs Mar 31, 2026
New
2
Increased
6
Decreased
11
Sold Out
1
Unchanged
17
Holder count:
+1
Institutional value:
+0.5%
Shares held:
+1.8%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid Karpus Management, Inc. | +31,575 | 465,125 | |
| Mid Polar Asset Management Partners Inc. | +30,000 | 330,000 | |
| Large Clear Street Group Inc. | +11,121 | 555,505 | |
| Mid AQR Arbitrage LLC | +7,738 | 590,163 | |
| Small Decagon Asset Management LLP | +2,900 | 370,703 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid GLAZER CAPITAL, LLC | −118,919 | 673,252 | |
| Small Shaolin Capital Management LLC | −39,494 | 460,506 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC | −34,450 | 519,293 | |
| Small Crossingbridge Advisors, LLC | −26,700 | 75,000 | |
| Small ABC ARBITRAGE SA | −20,000 | 20,000 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 11,843 | $122,930 | |
| Small METEORA CAPITAL, LLC | 367,912 | $0 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid Virtu Financial LLC | 33,601 | $337,690 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid MIZUHO SECURITIES USA LLC Broker-Dealer | $5,519,818 | 9.75% | 542,755 | Shares | 2026-07-28 | |
| Mid RIVERNORTH CAPITAL MANAGEMENT, LLC | $5,025,332 | 8.88% | 494,133 | Shares | 2026-08-14 | |
| Mid Karpus Management, Inc. | $4,730,321 | 8.36% | 465,125 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC | $4,046,266 | 7.15% | 397,863 | Shares | 2026-08-10 | |
| Mid GLAZER CAPITAL, LLC | $3,662,217 | 6.47% | 360,100 | Shares | 2026-08-17 | |
| Large Clear Street Group Inc. | $3,243,446 | 5.73% | 318,923 | Shares | 2026-08-12 | |
| Mid AQR Arbitrage LLC | $2,917,254 | 5.15% | 286,849 | Shares | 2026-08-14 | |
| Small Logan Stone Capital, LLC | $2,562,840 | 4.53% | 252,000 | Shares | 2026-08-14 | |
| Mid MANGROVE PARTNERS IM, LLC | $2,288,250 | 4.04% | 225,000 | Shares | 2026-08-14 | |
| Large Verition Fund Management LLC | $2,034,000 | 3.59% | 200,000 | Shares | 2026-08-14 | |
| Mid ARISTEIA CAPITAL, L.L.C. | $2,034,000 | 3.59% | 200,000 | Shares | 2026-08-14 | |
| Small Shaolin Capital Management LLC | $1,798,666 | 3.18% | 176,860 | Shares | 2026-08-14 | |
| Small Radcliffe Capital Management, L.P. | $1,627,200 | 2.88% | 160,000 | Shares | 2026-08-14 | |
| Mid Polar Asset Management Partners Inc. | $1,525,500 | 2.70% | 150,000 | Shares | 2026-08-14 | |
| Mid Cable Car Capital, LP | $1,525,500 | 2.70% | 150,000 | Shares | 2026-08-14 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $1,398,375 | 2.47% | 137,500 | Shares | 2026-08-14 | |
| Large TORONTO DOMINION BANK Bank APACU | $1,261,076 | 2.23% | 121,491 | Shares | 2026-08-14 | |
| Mid SONA ASSET MANAGEMENT (US) LLC | $1,190,866 | 2.10% | 117,096 | Shares | 2026-08-14 | |
| Mid BERKLEY W R CORP | $1,152,850 | 2.04% | 113,358 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP | $921,656 | 1.63% | 90,625 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA | $916,825 | 1.62% | 90,150 | Shares | 2026-08-13 | |
| Mid Westchester Capital Management, LLC | $813,599 | 1.44% | 80,000 | Shares | 2026-08-14 | |
| Small Crossingbridge Advisors, LLC | $762,750 | 1.35% | 75,000 | Shares | 2026-08-13 | |
| Small Yakira Capital Management, Inc. APACU | $660,790 | 1.17% | 63,660 | Shares | 2026-08-13 | |
| Mid Quarry LP APACU | $622,800 | 1.10% | 60,000 | Shares | 2026-08-14 | |
| Small RLH Capital LLC | $584,775 | 1.03% | 57,500 | Shares | 2026-08-10 | |
| Small HEIGHTS CAPITAL MANAGEMENT, INC | $513,585 | 0.91% | 50,500 | Shares | 2026-08-14 | |
| Small Lineage Point Capital LP APACU | $413,124 | 0.73% | 39,800 | Shares | 2026-08-14 | |
| Large Clear Street Group Inc. APACU | $275,391 | 0.49% | 26,531 | Shares | 2026-08-12 | |
| Small Warberg Asset Management LLC | $241,029 | 0.43% | 23,700 | Shares | 2026-08-11 | |
| Small ABC ARBITRAGE SA | $203,400 | 0.36% | 20,000 | Shares | 2026-07-20 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP APACU | $122,930 | 0.22% | 11,843 | Shares | 2026-08-14 | |
| Mega UBS Group AG APACU | $539 | 0.00% | 52 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY | $284 | 0.00% | 28 | Shares | 2026-08-13 | |
| Mid ARISTEIA CAPITAL, L.L.C. APACR | — | — | 200,000 | Shares | 2026-08-14 | |
| Small Decagon Asset Management LLP APACR | — | — | 370,703 | Shares | 2026-08-14 | |
| Mid GLAZER CAPITAL, LLC APACR | — | — | 313,152 | Shares | 2026-08-17 | |
| Mid RIVERNORTH CAPITAL MANAGEMENT, LLC APACR | — | — | 494,517 | Shares | 2026-08-14 | |
| Small Radcliffe Capital Management, L.P. APACR | — | — | 160,000 | Shares | 2026-08-14 | |
| Small METEORA CAPITAL, LLC APACR | — | — | 367,912 | Shares | 2026-08-14 | |
| Large Clear Street Group Inc. APACR | — | — | 210,051 | Shares | 2026-08-12 | |
| Small Shaolin Capital Management LLC APACR | — | — | 283,646 | Shares | 2026-08-14 | |
| Large Verition Fund Management LLC APACR | — | — | 200,000 | Shares | 2026-08-14 | |
| Small HEIGHTS CAPITAL MANAGEMENT, INC APACR | — | — | 39,626 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC APACR | — | — | 121,430 | Shares | 2026-08-10 | |
| Mid MANGROVE PARTNERS IM, LLC APACR | — | — | 225,000 | Shares | 2026-08-14 | |
| Mid Cable Car Capital, LP APACR | — | — | 150,000 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA APACR | — | — | 79,012 | Shares | 2026-08-13 | |
| Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC APACR | — | — | 616,167 | Shares | 2026-08-14 | |
| Mid AQR Arbitrage LLC APACR | — | — | 303,314 | Shares | 2026-08-14 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC APACR | — | — | 137,500 | Shares | 2026-08-14 | |
| Mid Polar Asset Management Partners Inc. APACR | — | — | 180,000 | Shares | 2026-08-14 |
Key facts
CIK
2043630
CUSIP
G85096108
13F (30d)
35 filings
35 filers
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