Classover Holdings Inc. - 30KIDZWPreferred / convertible

13F holders, Q3 2025 (September 30)
30holders +1
5new positions
4sold out
2famous investors
$0.08avg. 13F price*

At the end of Q3 2025, 30 institutions reported holding Classover Holdings Inc. - 30 (KIDZW) in their 13F filings, up 1 from Q2 2025. 5 opened new positions and 4 sold out. The largest holders were Aristeia Capital, L.L.C. ($104K), Polar Asset Management Partners Inc. ($72K) and Calamos Advisors LLC ($60K). 2 famous investors held it, including David E. Shaw ( of D. E. Shaw & Co.'s portfolio) and Ken Griffin ( of Citadel Advisors's portfolio).

Company
Classover Holdings Inc. - 30
CUSIP
182744110
Latest filing quarter
Q2 2026

History

Number of 13F holders

0102030 Q2 2025: 29Q2 2025Q3 2025: 30Q3 2025Q4 2025: 25Q4 2025Q1 2026: 24Q1 2026Q2 2026: 23Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions5$28K
Exits4$168K

All 13F filers, Q2 2025 → Q3 2025: 663,112 shares bought and 1,563,319 shares sold, net −900,207 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 30 holders
Aristeia Capital, L.L.C. — Add +37.8% 1,128,651 $104K
Polar Asset Management Partners Inc. — No change 785,874 $72K
Calamos Advisors LLC — No change 750,000 $60K
Saba Capital Management, L.P. — No change 699,290 $56K
D. E. Shaw & Co. — No change 575,000 $46K
Toronto Dominion Bank — No change 528,924 $42K
Altshuler Shaham Ltd — No change 504,998 $41K
Davidson Kempner Capital Management LP — No change 500,000 $40K
Clear Street Group Inc. — — 490,887 $39K
Cubist Systematic Strategies, LLC — No change 260,328 $21K
Healthcare of Ontario Pension Plan Trust Fund — No change 250,000 $20K
LMR Partners LLP — No change 250,000 $20K
MMCAP International Inc. SPC — No change 187,500 $15K
Adage Capital Partners Gp, L.L.C. — Reduce -54.4% 176,533 $14K
Balyasny Asset Management L.P. — New 153,300 $12K
VR Advisory Services Ltd — New 150,000 $12K
Rivernorth Capital Management, LLC — No change 123,531 $10K
Greenland Capital Management LP — No change 100,000 $8K
TENOR CAPITAL MANAGEMENT Co., L.P. — No change 75,000 $6K
Parallax Volatility Advisers, L.P. — Reduce -0.6% 69,606 $6K
Shaolin Capital Management LLC — Reduce -60.0% 60,000 $5K
Whitebox Advisors LLC — No change 46,500 $4K
Arete Wealth Advisors, LLC — No change 42,100 $3K
Citadel Advisors — Add +0.0% 29,510 $2K
OMERS ADMINISTRATION Corp — No change 25,000 $2K
Flow Traders U.S. LLC — New 19,133 $2K
StoneX Group Inc. — New 20,624 $2K
Ancora Advisors LLC — No change 6,000 $481
UBS Group AG — Reduce -24.1% 1,150 $92
HRT Financial LP — New 10,604 $0

"% of holder's portfolio" is KIDZW's weight in each manager's 13F, not the share of Classover Holdings Inc. - 30 the manager owns.