Joseph Heinmiller

Verified

Managing Partner at Graham PartnersListed on SEC Form ADVNewtown Square, United States

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Check Size

Not yet known

Reliability Score

🎯100% of deals in Healthcare

Investment Timeline

GP Matrix Holdings

Board seat (SEC Form D)Source

Since Apr 2026

Company last raised Apr 2026

Cerebro Holdings

Board seat (SEC Form D)Source

Since Mar 2023

Company last raised Mar 2023

Portfolio Breakdown

By Sector

Healthcare2 deals · 100%

By Stage

2 tracked deals1 sector · 0 stages

Deal Velocity

Avg Deals / Year

0.5

Avg Deal Size

Unknown

Largest Deal

GP Matrix Holdings

Unknown

YoY Trend

Accelerating

Deals Per Year

2 total deals tracked2023–2026

Investment Activity Map

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2023

2024

2025

2026

Less

Current Fund Status

Fund Name

Graham Partners Genesis (b), L.P.

Reported Size

$75.6M

Co-Investors

No co-investment data available yet.