Newbury Street II Acq - 29NTWOWPreferred / convertible

13F holders, Q4 2025 (December 31)
28holders
1new positions
1sold out
$0.25avg. 13F price*

At the end of Q4 2025, 28 institutions reported holding Newbury Street II Acq - 29 (NTWOW) in their 13F filings, unchanged from Q3 2025. 1 opened new positions and 1 sold out. The largest holders were Magnetar Financial LLC ($192K), LMR Partners LLP ($182K) and Healthcare of Ontario Pension Plan Trust Fund ($151K).

Company
Newbury Street II Acq - 29
CUSIP
G6439S117
Latest filing quarter
Q2 2026

History

Number of 13F holders

0102030 Q4 2024: 8Q4 2024Q1 2025: 20Q1 2025Q2 2025: 27Q2 2025Q3 2025: 28Q3 2025Q4 2025: 28Q4 2025Q1 2026: 27Q1 2026Q2 2026: 27Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions1$58K
Exits1$5K

All 13F filers, Q3 2025 → Q4 2025: 269,579 shares bought and 246,476 shares sold, net +23,103 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 28 holders
Magnetar Financial LLC — No change 725,000 $192K
LMR Partners LLP — No change 725,000 $182K
Healthcare of Ontario Pension Plan Trust Fund — No change 600,000 $151K
Linden Advisors LP — No change 525,000 $139K
AQR Arbitrage LLC — Reduce -30.0% 508,871 $128K
CSS LLC — No change 443,780 $111K
Kepos Capital LP — No change 373,000 $99K
Hudson Bay Capital Management LP — No change 387,074 $97K
Shaolin Capital Management LLC — Add +6.1% 350,014 $88K
Toronto Dominion Bank — Add +4.2% 349,785 $88K
Picton Mahoney Asset Management — No change 312,500 $83K
Wealthspring Capital LLC — Reduce -1.0% 281,492 $65K
Clear Street Group Inc. — No change 246,951 $62K
BNP Paribas Financial Markets — New 218,493 $58K
Rivernorth Capital Management, LLC — No change 249,872 $58K
MMCAP International Inc. SPC — No change 225,000 $56K
Westchester Capital Management, LLC — No change 225,000 $52K
Periscope Capital Inc. — No change 187,400 $50K
K2 Principal Fund, L.P. — Reduce 0.0% 198,253 $50K
Whitebox Advisors LLC — No change 187,500 $47K
Verition Fund Management LLC — Add +8.9% 159,051 $40K
TENOR CAPITAL MANAGEMENT Co., L.P. — No change 124,709 $31K
Moore Capital Management, LP — No change 100,000 $25K
Wolverine Asset Management LLC — Reduce -1.1% 36,179 $9K
Susquehanna International Group, LLP — Add +15.0% 31,161 $8K
Heights Capital Management, Inc. — No change 22,500 $6K
Longfellow Investment Management Co. LLC — No change 238 $60
UBS Group AG — Reduce -86.3% 170 $39

"% of holder's portfolio" is NTWOW's weight in each manager's 13F, not the share of Newbury Street II Acq - 29 the manager owns.