Silverbox Corp. IV-A- 29SBXWFPreferred / convertible

13F holders, Q1 2025 (March 31)
24holders +7
7new positions
0sold out
$0.35avg. 13F price*

At the end of Q1 2025, 24 institutions reported holding Silverbox Corp. IV-A- 29 (SBXWF) in their 13F filings, up 7 from Q4 2024. 7 opened new positions and 0 sold out. The largest holders were Sculptor Capital LP ($254K), Linden Advisors LP ($239K) and Healthcare of Ontario Pension Plan Trust Fund ($233K).

Company
Silverbox Corp. IV-A- 29
CUSIP
G81354121
Latest filing quarter
Q2 2026

History

Number of 13F holders

0102030 Q4 2024: 17Q4 2024Q1 2025: 24Q1 2025Q2 2025: 28Q2 2025Q3 2025: 27Q3 2025Q4 2025: 29Q4 2025Q1 2026: 28Q1 2026Q2 2026: 29Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions7$554K
Exits0$0

All 13F filers, Q4 2024 → Q1 2025: 1,635,851 shares bought and 13,276 shares sold, net +1,622,575 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 24 holders
Sculptor Capital LP — No change 659,800 $254K
Linden Advisors LP — No change 666,667 $239K
Healthcare of Ontario Pension Plan Trust Fund — New 666,666 $233K
Polar Asset Management Partners Inc. — No change 660,000 $231K
AQR Arbitrage LLC — No change 744,526 $206K
Picton Mahoney Asset Management — No change 333,333 $117K
MMCAP International Inc. SPC — New 326,666 $114K
Calamos Advisors LLC — New 166,666 $58K
LMR Partners LLP — No change 166,666 $58K
Context Capital Management, LLC — New 154,317 $54K
Shaolin Capital Management LLC — Add +20.9% 149,042 $52K
Westchester Capital Management, LLC — New 139,454 $49K
Periscope Capital Inc. — No change 124,900 $44K
CSS LLC — No change 115,471 $40K
Rivernorth Capital Management, LLC — No change 99,999 $35K
Moore Capital Management, LP — New 83,333 $29K
Schechter Investment Advisors, LLC — Reduce -3.6% 77,483 $27K
Gritstone Asset Management LLC — Reduce -0.2% 74,051 $26K
Bulldog Investors, LLP — Add +58.5% 71,318 $25K
Saba Capital Management, L.P. — Reduce -0.1% 67,710 $24K
Walleye Capital LLC — New 46,726 $16K
Clear Street LLC — Reduce -2.0% 45,337 $16K
Parallax Volatility Advisers, L.P. — No change 27,921 $10K
Schonfeld Strategic Advisors LLC — Reduce -27.7% 24,091 $8K

"% of holder's portfolio" is SBXWF's weight in each manager's 13F, not the share of Silverbox Corp. IV-A- 29 the manager owns.