StoneBridge Acquisition Corporation
StoneBridge Acquisition Corporation (APAC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · APAC · as of Mar 31, 2024
Ownership Breakdown
11
Institutional Holders
▼ 3 vs Q4
$15.80M
Total Inst. Value
▼ $29,144 vs Q4
7.43M
Shares Outstanding
freeFloat 32.66%
2.17M
13F Shares Held
▲ 744,257 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
APAC largest shareholders · institutional ownership
Q1 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
CANTOR FITZGERALD, L. P. blank checks | 700.0K | 19.05% | 19.05% | $1,000 | May 15, 2024 | ▲ 700.0K |
KARPUS MANAGEMENT, INC. blank checks | 352.3K | 9.59% | 9.59% | $3.92B | May 13, 2024 | — held |
GLAZER CAPITAL, LLC blank checks | 330.8K | 9.00% | 9.00% | $3.81B | May 15, 2024 | — held |
FIR TREE CAPITAL MANAGEMENT LP blank checks | 209.9K | 5.71% | 5.71% | $2.41B | May 15, 2024 | — held |
RIVERNORTH CAPITAL MANAGEMENT, LLC blank checks | 141.0K | 3.84% | 3.84% | $1.27B | May 15, 2024 | — held |
PERISCOPE CAPITAL INC. blank checks | 100.0K | 2.72% | 2.72% | $1.13B | May 13, 2024 | — held |
COWEN AND COMPANY, LLC blank checks | 98.0K | 2.67% | 2.67% | $873.18M | May 3, 2024 | — held |
YAKIRA CAPITAL MANAGEMENT, INC. blank checks | 92.7K | 2.52% | 2.52% | $1.04B | May 14, 2024 | — held |
SHAOLIN CAPITAL MANAGEMENT LLC blank checks | 84.7K | 2.30% | 2.30% | $760.41M | May 17, 2024 | ▲ 84.7K |
WESTCHESTER CAPITAL MANAGEMENT, LLC blank checks | 33.4K | 91.00% | 91.00% | $371.77M | May 15, 2024 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2024 vs prior quarter
Q1 2024
3
Increased
+785.2K shares0
New Positions
first time holders0
Decreased
−0 shares5
Sold Out
fully exitedNet shares change (top 50)
+785.2K
+785.2K / −0
Net new holders
-2
0 new / 5 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
APAC insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
4
Sell transactions
1.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
StoneBridge Acquisition Sponsor II LLC 10 percent owner | Feb 5, 2026 | Award | 100,000 | — | — | 991.7K | Form 4 ↗ |
BP SPAC Sponsor II LLC 10 percent owner | Feb 5, 2026 | Award | 100,000 | — | — | 991.7K | Form 4 ↗ |
Antony Prabhu Chief Financial Officer | Feb 5, 2026 | Award | 100,000 | — | — | 991.7K | Form 4 ↗ |
Boodhoo Roshan director | Feb 5, 2026 | Award | 25,000 | — | — | 25.0K | Form 4 ↗ |
Saldanha Richard B director | Feb 5, 2026 | Award | 25,000 | — | — | 25.0K | Form 4 ↗ |
Marepally Bhargava Chief Executive Officer | Feb 5, 2026 | Award | 100,000 | — | — | 991.7K | Form 4 ↗ |
Mohamed Mohideen Mahboob Subuhani director | Feb 5, 2026 | Award | 25,000 | — | — | 25.0K | Form 4 ↗ |
Huffman Joel David director | Feb 5, 2026 | Award | 25,000 | — | — | 25.0K | Form 4 ↗ |
Marepally Bhargava Chief Executive Officer | Mar 12, 2024 | Purchase | 110 | $900.00 | $99.0K | 110 | Form 4 ↗ |
Antony Prabhu President and CFO | Mar 12, 2024 | Purchase | 230 | $1725.00 | $396.8K | 230 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
StoneBridge Acquisition Corporation (APAC) is primarily owned by institutional investors, who hold approximately 29.2% of total shares outstanding. Company insiders own approximately 67.34%, while retail and public investors account for the remaining 3.48%.
The largest institutional shareholder of StoneBridge Acquisition Corporation is CANTOR FITZGERALD, L. P., holding approximately 700,000 shares — equal to 19.05% of outstanding shares — as of March 31, 2024.
A total of 11 institutional investors currently hold APAC stock, with a combined institutional value of approximately $15,797,731 as of the most recent 13F filing period.
Frequently asked questions
APAC ownershipStoneBridge Acquisition Corporation (APAC) is primarily owned by institutional investors, who hold approximately 29.2% of shares. The largest shareholder is CANTOR FITZGERALD, L. P. with a 19.05% stake. Company insiders hold 67.34%. Data sourced from SEC Form 13F as of March 31, 2024.