Spark I Acquisition Corp. Class A Ordinary Share
Spark I Acquisition Corp. Class A Ordinary Share (SPKL) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SPKL · as of Sep 30, 2025
Ownership Breakdown
15
Institutional Holders
▼ 16 vs Q2
$19.53M
Total Inst. Value
▼ $56.86M vs Q2
8.66M
Shares Outstanding
freeFloat 100.00%
1.69M
13F Shares Held
▼ 5.32M vs Q2
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
SPKL largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
AQR ARBITRAGE LLC blank checks | 634.0K | 3.86% | 3.86% | $7.37B | Nov 14, 2025 | — held |
DEUTSCHE BANK AG\ blank checks | 290.0K | 1.77% | 1.77% | $3.37B | Nov 13, 2025 | — held |
MIZUHO SECURITIES USA LLC blank checks | 264.5K | 1.61% | 1.61% | $2.90B | Oct 22, 2025 | ▲ 14.4K |
PERISCOPE CAPITAL INC. blank checks | 125.0K | 76.12% | 76.12% | $1.45B | Nov 13, 2025 | — held |
MOORE CAPITAL MANAGEMENT, LP blank checks | 100.0K | 60.89% | 60.89% | $1.16B | Nov 14, 2025 | ▼ 100.0K |
UBS OCONNOR LLC blank checks | 66.8K | 40.70% | 40.70% | $777.26M | Jan 15, 2026 | — held |
GLAZER CAPITAL, LLC blank checks | 65.1K | 39.64% | 39.64% | $757.00M | Nov 13, 2025 | ▼ 54.6K |
RADCLIFFE CAPITAL MANAGEMENT, L.P. blank checks | 48.7K | 29.66% | 29.66% | $566.47M | Nov 14, 2025 | — held |
CLEAR STREET GROUP INC. blank checks | 27.8K | 16.90% | 16.90% | $322.74M | Nov 14, 2025 | NEW |
SUSQUEHANNA INTERNATIONAL GROUP, LLP blank checks | 26.2K | 15.93% | 15.93% | $304.24M | Nov 14, 2025 | ▼ 27.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
3
Increased
+21.6K shares2
New Positions
first time holders4
Decreased
−457.4K shares18
Sold Out
fully exitedNet shares change (top 50)
435.8K
+21.6K / −457.4K
Net new holders
-17
2 new / 18 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SPKL insider trading · insider activity
Source: SEC Form 4
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
MARSHALL GREGORY K director | Dec 31, 2010 | Award | 200,000 | $0.09 | $17.0K | 200.0K | Form 4 ↗ |
TINTER ARNOLD CFO | Mar 4, 2010 | J-Other | 1,000,000 | — | — | 1.00M | Form 4 ↗ |
TINTER ARNOLD CFO | Mar 17, 2008 | J-Other | 200,000 | $0.20 | $40.0K | 200.0K | Form 4 ↗ |
TINTER ARNOLD CFO | Aug 6, 2008 | J-Other | 100,000 | $0.20 | $20.0K | 100.0K | 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
Spark I Acquisition Corp. Class A Ordinary Share (SPKL) is primarily owned by institutional investors, who hold approximately 19.6% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 80.43%.
The largest institutional shareholder of Spark I Acquisition Corp. Class A Ordinary Share is AQR ARBITRAGE LLC, holding approximately 633,999 shares — equal to 3.86% of outstanding shares — as of September 30, 2025.
A total of 15 institutional investors currently hold SPKL stock, with a combined institutional value of approximately $19,526,794 as of the most recent 13F filing period.
Frequently asked questions
SPKL ownershipSpark I Acquisition Corp. Class A Ordinary Share (SPKL) is primarily owned by institutional investors, who hold approximately 19.6% of shares. The largest shareholder is AQR ARBITRAGE LLC with a 3.86% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of September 30, 2025.