Comparable stake leader
AQR CAPITAL MANAGEMENT LLC
SEC ownership of Spark I Acquisition Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001884046.
Disclosed value leader
AQR Arbitrage LLC
Comparable rows
11/36
Latest evidence
31 Mar 2026
- Public ticker
- SPKL, SPKLU, SPKLW on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
AQR CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
11 of 36
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
AQR CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001884046
- Issuer location
- Palo Alto, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Spark I Acquisition Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
AQR CAPITAL MANAGEMENT LLC
Disclosed value leader
AQR Arbitrage LLC
Comparable rows
11/36
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
25 rows are not safely comparable across share classes.
13D/G row: AQR CAPITAL MANAGEMENT LLC
Showing 1-8 of 36 holder rows.
Quick read
AQR CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 10%.
11 of 36 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens AQR CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
AQR CAPITAL MANAGEMENT LLC
10%
MIZUHO FINANCIAL GROUP INC
7%
MIZUHO SECURITIES USA LLC
7%
BERKLEY W R CORP
1.5%
O'Connor Alternative Investments LLC
1.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 36 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
10%
|
$6,885,229
633,999 shares
|
$0 | 31 Jul 2025 |
| MIZUHO FINANCIAL GROUP INC |
13D/G
|
7%
|
$4,984,793
436,195 shares
|
$0 | 31 Dec 2025 |
| MIZUHO SECURITIES USA LLC |
13F
Company
|
7%
|
$4,911,525
438,529 shares
|
— | 31 Mar 2026 |
| BERKLEY W R CORP |
13F
Company
|
1.5%
|
$1,024,979
90,426 shares
|
— | 31 Mar 2026 |
| O'Connor Alternative Investments LLC |
13F
Company
|
1.1%
|
$755,870
66,832 shares
|
— | 31 Mar 2026 |
| GLAZER CAPITAL, LLC |
13F
Company
|
0.96%
|
$680,000
60,100 shares
|
— | 31 Mar 2026 |
| Radcliffe Capital Management, L.P. |
13F
Company
|
0.63%
|
$447,596
39,488 shares
|
— | 31 Mar 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
0.53%
|
$372,427
32,929 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 05 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-8 of 8 reporting-owner rows connected to Spark I Acquisition Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
8
Largest Forms 3/4/5 holder
SLG SPAC Fund LLC
Net 12M change
$0
Latest report
11 Oct 2023
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| SLG SPAC Fund LLC | Chief Finance Officer, Director, Other*, 10%+ Owner | Mixed | 11 Oct 2023 | |||
| Catherine Mohr | Director | Mixed | 05 Oct 2023 | |||
| James Rhee | Chief Executive Officer, Director | Mixed | 05 Oct 2023 | |||
| Kurtis Jang | Chief Operating Officer, Director | Mixed | 05 Oct 2023 | |||
| Shin-Bae Kim | Director | Mixed | 05 Oct 2023 | |||
| Antony Ling | Director | Mixed | 05 Oct 2023 | |||
| Willy Lan | Director | Mixed | 05 Oct 2023 | |||
| Cuong Do V | Director | Mixed | 05 Oct 2023 |
Recent insider transactions for Spark I Acquisition Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.