Institutional manager · SEC 13F

Matthew Halbower

Pentwater Capital Management LP

Reported book: $12.5B
Reported positions: 87
As of: Jun 30, 2026

Largest disclosed holdingstop 3 of 87

ELECTRONIC ARTS INCELECTRONIC ARTS INC$2.8B22.1%
BABOEING CO$1.3B10.7%
WBDWARNER BROS DISCOVERY INC$1.3B10.2%

The complete book — every position with weights, share counts and quarter-over-quarter changes — is in the live dashboard.

Track Matthew Halbower live — and everyone else

The dashboard reads every new filing within minutes: every 13F, Form 4 and Schedule the moment it clears EDGAR — plus live insider buying across the whole market, the most-bought board, and performance versus the S&P. Free to start.

Open the live dashboard See plans

Get the free Insider Brief

The week's real signals — open-market insider buys, cluster formations and new filings from Matthew Halbower — in plain English, with grants and routine vesting stripped out. Free, and honest about what the data can and cannot say.