Spark I Acquisition Corp - *W EXP 10/01/203 (SPKLW)

CUSIP: G8316B118

Q1 2026 13F Holders as of 31 Mar 2026

Share change
-340,378
SEC-reported price per share
$0.18
Number of holders
23
Value change
-$90,383
Number of sells
8

Security key

G8316B118

Report period

Q1 2026

Institutions

23

Top holders

10

Ownership snapshot

Top reported holders of SPKLW - Spark I Acquisition Corp - *W EXP 10/01/203 (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
MIZUHO SECURITIES USA LLC
Disclosed value leader
AQR Arbitrage LLC
Comparable rows
8/15
Latest evidence
31 Dec 2025
13F 3/4/5 Lead comparable stake: 7% 7 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

MIZUHO SECURITIES USA LLC leads the comparable SEC ownership view at 7%.

8 of 15 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 MIZUHO SECURITIES USA LLC's linked filing trail.
Comparable ownership Top 5
MIZUHO SECURITIES USA LLC 7%
OCONNOR, A Distinct Business Unit... 1.1%
BERKLEY W R CORP 1.1%
GLAZER CAPITAL, LLC 0.96%
Radcliffe Capital Management, L.P. 0.63%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
MIZUHO SECURITIES USA LLC
13F
Company
13F
7%
$4,849,583
436,195 shares
31 Dec 2025
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)
13F
Company
13F
1.1%
$754,533
66,832 shares
31 Dec 2025
BERKLEY W R CORP
13F
Company
13F
1.1%
$749,419
65,566 shares
31 Dec 2025
GLAZER CAPITAL, LLC
13F
Company
13F
0.96%
$687,000
60,100 shares
31 Dec 2025
Radcliffe Capital Management, L.P.
13F
Company
13F
0.63%
$451,348
39,488 shares
31 Dec 2025
Logan Stone Capital, LLC
13F
Company
13F
0.46%
$325,526
28,480 shares
31 Dec 2025
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.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
23
Shares
2,762,407
Rows available
23
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders
23
Q1 2026 holders
23
Holder diff
0
Investor Q1 2026 Shares Q1 2026 Shares Share Diff Share Chg % Q1 2026 value Q1 2026 value Value change Value Chg %
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