UBS O'Connor’s M3-Brigade Acquisition VI Corp MBVI Stock Holding History

UBS O'Connor’s Portfolio MBVI Stock Details MBVI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	$2.5M	Buy	+250,000	New	+$2.51M	0.07%	97

Other funds holding MBVI

HCM

Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return

AIMCA

Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $17.9B AUM 27.56% 1-Year Est. Return

PEAK6 Chicago, Illinois $48.6B AUM 40.56% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return

HighTower Advisors Chicago, Illinois $103B AUM 28.65% 1-Year Est. Return

Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

MMCAP International Grand Cayman, Cayman Islands $1.18B AUM 50.44% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return

UBS O'Connor's MBVI Position: Q4 2025 in Review

UBS O'Connor opened a new position in M3-Brigade Acquisition VI Corp (MBVI) in Q4 2025: 250,000 shares worth $2.5M. The stake represents 0.07% of the portfolio and ranks #97 among its holdings.

60 funds tracked by Wall St. Rank hold MBVI as of Q4 2025.

UBS O'Connor held 250,000 shares of M3-Brigade Acquisition VI Corp worth $2.5M as of Q4 2025.
M3-Brigade Acquisition VI Corp was a new UBS O'Connor position in Q4 2025.
M3-Brigade Acquisition VI Corp made up 0.07% of UBS O'Connor's portfolio in Q4 2025, its #97 holding.
60 funds tracked by Wall St. Rank held M3-Brigade Acquisition VI Corp as of Q4 2025.

Based on UBS O'Connor's 13F filing for Q4 2025, filed 13 Feb 2026.