Spark I Acquisition Corp.-28SPKWFPreferred / convertible

13F holders, Q2 2026 (June 30)
22holders −1
6new positions
2sold out
1famous investor
$2.38avg. 13F price*

At the end of Q2 2026, 22 institutions reported holding Spark I Acquisition Corp.-28 (SPKWF) in their 13F filings, down 1 from Q1 2026. 6 opened new positions and 2 sold out. The largest holders were AQR Arbitrage LLC ($702K), Polar Asset Management Partners Inc. ($534K) and Saba Capital Management, L.P. ($508K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).

Company
Spark I Acquisition Corp.-28
CUSIP
G8316B118
Latest filing quarter
Q2 2026

History

Number of 13F holders

010203040 Q1 2024: 30Q1 2024Q2 2024: 31Q2 2024Q3 2024: 31Q3 2024Q4 2024: 27Q4 2024Q1 2025: 28Q1 2025Q2 2025: 31Q2 2025Q3 2025: 29Q3 2025Q4 2025: 27Q4 2025Q1 2026: 23Q1 2026Q2 2026: 22Q2 2026

Total Exit/New Position Q1 2026 → Q2 2026

InstitutionsTotal Value
New Positions6$876K
Exits2$122K

All 13F filers, Q1 2026 → Q2 2026: 417,742 shares bought and 455,606 shares sold, net −37,864 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 22 holders
AQR Arbitrage LLC — No change 292,331 $702K
Polar Asset Management Partners Inc. — No change 225,000 $534K
Saba Capital Management, L.P. — New 213,878 $508K
Linden Advisors LP — Add +33.4% 200,100 $475K
MMCAP International Inc. SPC — No change 175,000 $416K
Wealthspring Capital LLC — No change 127,450 $303K
Moore Capital Management, LP — No change 100,000 $238K
Shaolin Capital Management LLC — Reduce -66.8% 95,700 $227K
Centiva Capital, LP — New 80,000 $192K
Alberta Investment Management Corp — No change 75,000 $178K
Periscope Capital Inc. — Reduce -69.2% 67,500 $160K
Clear Street Group Inc. — Reduce -48.5% 60,000 $143K
PEAK6 LLC — New 48,138 $114K
D. E. Shaw & Co. — No change 40,596 $97K
TENOR CAPITAL MANAGEMENT Co., L.P. — No change 25,000 $59K
Susquehanna International Group, LLP — New 18,426 $44K
GABELLI & Co INVESTMENT ADVISERS, INC. — No change 12,650 $30K
Mint Tower Capital Management B.V. — No change 12,500 $30K
Calamos Advisors LLC — No change 12,384 $30K
Gabelli Funds LLC — No change 12,350 $29K
Thomas J. Herzfeld Advisors, Inc. — New 6,000 $14K
Arax Advisory Partners — New 1,200 $3K

"% of holder's portfolio" is SPKWF's weight in each manager's 13F, not the share of Spark I Acquisition Corp.-28 the manager owns.