Pentwater Capital Management: Platform Profile

Overview

Pentwater Capital Management is a private event-driven investment firm founded in April 2007 under Matthew Halbower. Its first-party investment description emphasizes bottom-up, opportunistic investing across the capital structure, with corporate events and idiosyncratic catalysts at the center of the process.

May fit better for

• qualified investors seeking event-driven hedge-fund exposure;
• allocators comfortable with merger arbitrage and corporate catalysts;
• investors evaluating equities, credit and derivatives together;
• investors able to tolerate deal-break and litigation risk.

May fit less well for

• retail users seeking self-service public access;
• investors seeking a passive or benchmark-tracking portfolio;
• users who treat 13F option values as firm AUM;
• investors interpreting capital-preservation language as guaranteed principal protection.

Pentwater is SEC registered

• Legal adviser: Pentwater Capital Management LP
• CRD: 156873
• SEC number: 801-72861
• SEC registration effective: 2011-11-16
• SEC registered investment adviser: Yes
• Umbrella registration: Yes

The filing structure includes Pentwater Capital Management Europe LLP.

Regulatory AUM is $19.3B

Current March 31, 2026 regulatory disclosures show:

• Regulatory AUM: $19.3B
• Regulatory AUM as of: 2026-03-31
• Client accounts: 23
• Employees: 45
• Discretionary AUM share: 100%

Q2 2026 13F value is $16.352B

Regulatory filings show:

• Q2 2026 13F value: $16.352B
• Q2 2026 13F as of: 2026-06-30
• Q2 2026 13F holding count: 90

The Q2 filing includes common-stock positions and option positions.

First-party strategy is event driven across the capital structure

• Event driven: Yes
• Bottom up: Yes
• Opportunistic: Yes
• Across capital structure: Yes
• Active risk management: Yes
• Capital preservation priority: Yes

First-party language says risk management and capital preservation are key priorities.

Founder and leadership

• Founded: 2007-04
• Founder leader: Matthew Halbower
• Headquarters: Naples, Florida

Investor access is qualification-based

The current investor-login page states that an offer to invest may be made only to persons who qualify, by Pentwater personnel, pursuant to confidential offering documents and only where permitted.

It also states that investing involves substantial risk, including loss of principal.

• Qualified investor context: Yes
• Public self service retail signup: No
• Loss of principal possible: Yes

European disclosure is separate from U.S. manager terms

The April 2026 Pentwater Capital Management Europe LLP MIFIDPRU disclosure concerns the European entity's prudential and remuneration framework.

Assessment

Pentwater's Q2 13F is informative because event-driven trades often appear in listed equities and options, but it is not the portfolio itself.

The review should anchor firm scale to $19.3B of March regulatory AUM and keep the $16.352B Q2 13F as a filing-specific measure.