Blueport Acquisition Ltd (BPAC) shareholders
Close on Nov 13, 2026Market cap $75.92MP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| William Rosenstadt Joint filing with Blueport Acquisition Corporation (22.14%), Jiang Roy (22.14%) | 1,634,750 | 22.14% | 13G (passive) | Nov 10, 2025 |
| Karpus Management, Inc. | 716,625 | 9.70% | 13G (passive) | Mar 31, 2026 |
| W. R. Berkley Corporation Joint filing with Berkley Insurance Company (9.80%) | 585,300 | 9.80% | 13G (passive) | Sep 30, 2026 |
| Feis Equities LLC Joint filing with Lawrence M. Feis (8.02%) | 461,124 | 8.02% | 13G (passive) | Nov 12, 2025 |
| Robert R. Bellick Joint filing with Wolverine Asset Management, LLC (5.61%), Wolverine Holdings, LLC (5.61%) and 1 more | 333,423 | 5.61% | 13G (passive) | Mar 31, 2026 |
| David Puritz Joint filing with Shaolin Capital Management LLC (5.49%) | 326,374 | 5.49% | 13G (passive) | Jan 8, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of BPAC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Karpus Management, Inc. | 714,525 | 12.01% | $7.23M | −2,100 | 0.21% |
| Rivernorth Capital Management, LLC | 500,000 | 8.41% | $5.09M | – | 0.24% |
| Mizuho Securities USA LLC | 449,588 | 7.56% | $4.46M | +220,144 | 0.04% |
| Wolverine Asset Management LLC | 345,585 | 5.81% | $3.50M | +12,162 | 0.03% |
| Shaolin Capital Management LLC | 278,270 | 4.68% | $2.82M | −7,504 | 0.13% |
| Aristeia Capital LLC | 250,000 | 4.20% | $2.53M | – | 0.03% |
| Linden Advisors LP | 250,000 | 4.20% | $2.53M | – | 0.01% |
| Polar Asset Management Partners Inc. | 250,000 | 4.20% | $2.53M | – | 0.04% |
| Glazer Capital, LLC | 240,083 | 4.04% | $2.43M | −16,894 | 0.06% |
| Whitebox Advisors LLC | 200,000 | 3.36% | $2.02M | – | 0.03% |
| Berkley W R Corp | 192,279 | 3.23% | $1.95M | +92,818 | 0.09% |
| Radcliffe Capital Management, L.P. | 159,322 | 2.68% | $1.61M | – | 0.12% |
| Sona Asset Management (US) LLC | 135,098 | 2.27% | $1.37M | – | 0.03% |
| Crossingbridge Advisors, LLC | 125,001 | 2.10% | $1.27M | +25,001 | 0.22% |
| Hudson Bay Capital Management LP | 100,000 | 1.68% | $1.01M | – | 0.00% |
| Westchester Capital Management, LLC | 100,000 | 1.68% | $1.01M | – | 0.05% |
| Heights Capital Management, Inc | 100,000 | 1.68% | $1.01M | – | 0.23% |
| BlueCrest Capital Management Ltd | 100,000 | 1.68% | $1.01M | – | 0.03% |
| First Trust Capital Management L.P. | 100,000 | 1.68% | $1.01M | – | 0.06% |
| L1 Global Manager Pty Ltd | 100,000 | 1.68% | $1.01M | – | 0.71% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 29 | 5M | 84.8% | 0 / 7 | 7 / 6 | 0M | 0M |
| Q1 2026 | 35 | 5M | 81.2% | 35 / 0 | 0 / 0 | 5M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
5 funds held BPAC in Q2 2026, 0% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of BPAC | Value | % of fund | As of |
|---|---|---|---|---|---|
| CrossingBridge Low Duration High Income Fund | 92,000 | 1.55% | $931.50K | 0.05% | Jun 30, 2026 |
| First Trust Merger Arbitrage Fund | 86,256 | 1.45% | $872.91K | 0.05% | Jun 30, 2026 |
| First Trust Multi-Strategy Fund | 13,165 | 0.22% | $133.23K | 0.01% | Jun 30, 2026 |
| Destinations Low Duration Fixed Income Fund | 8,000 | 0.13% | $80.72K | 0.03% | May 31, 2026 |
| Global Multi-Strategy Fund | 2,236 | 0.04% | $22.56K | 0.00% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| William S. Rosenstadt | CEO and Chairman, Director, 10% owner | 1,634,750 | 27.49% | Dec 8, 2025 |
| Kulwant Sandher | Chief Financial Officer | – | – | Nov 12, 2025 |
| Steven Andrew Sanders | Director | – | – | Nov 13, 2025 |
| Scott J. Silverman | Director | – | – | Nov 12, 2025 |
| Yarona L. Yieh | Director | – | – | Nov 12, 2025 |
| Roy Jiang | 10% owner | 1,634,750 | 27.49% | Nov 13, 2025 |
| Acquisition Corp Blueport | 10% owner | 1,634,750 | 27.49% | Nov 13, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| William S. Rosenstadt CEO and Chairman, Director, 10% owner | Nov 13, 2025 | Buy | +197,250 | – | – | 1,634,750 |
| Roy Jiang 10% owner | Nov 13, 2025 | Buy | +197,250 | – | – | 1,634,750 |
| Acquisition Corp Blueport 10% owner | Nov 13, 2025 | Buy | +197,250 | – | – | 1,634,750 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Blueport Acquisition's stock actually held short. Settlement fails (shares not delivered on time) peaked at 1 shares on Aug 24, 2026 over the last 90 days.
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