William L. Weisman

Solo GP · Los Angeles, CA

Verified active in the last 12 months

William L. Weisman is a solo GP based in Los Angeles, CA focused on Hardware & Robotics, AI & ML, Healthcare, investing at pre-seed to series a stage. William L. Weisman's most recent fund with a disclosed size, KittyHawk Ventures IV, LP, filed a $10.2M offering with the SEC in Apr 2024. William L. Weisman has 11 funds and deal vehicles on SEC file, including 10 single-deal SPVs. Estimated typical check: $100K–$300K. William L. Weisman has dated investing activity in the last 12 months (latest Aug 2026).

Why William L. Weisman is listed

Named as the only individual (Managing Director of GP of Issuer) on the Form D for KittyHawk Heavy MycoMedica 2026 SAFE LLC, a $2M venture SPV (Aug 2026) (11 vehicles on file: 1 fund, 10 SPVs). Also a non-executive director at 2 startups that filed Form D.

Source: SEC Form D: KittyHawk Heavy MycoMedica 2026 SAFE LLC (Aug 24, 2026) · 9 more sources

Is this you? Remove or correct this profile.

Stages: Pre-seed to Series A
Typical check (est.): $100K–$300K
Latest fund: $10.2M · Apr 2024
Latest dated activity: Aug 2026

Is William L. Weisman a fit for you?

See your fit score and the reason, contact details, and any warm path from your network.

Start 3-day trial to see contacts

What does William L. Weisman invest in?

Hardware & RoboticsAI & MLHealthcare

What has William L. Weisman invested in recently?

Anthropogenic
Deal vehicle; company not disclosed
Sep 2025
MAPS B
Deal vehicle; company not disclosed
Sep 2025
Boost II
Deal vehicle; company not disclosed
Aug 2025
The Robot
Deal vehicle; company not disclosed
Mar 2025
HoprAI II
Deal vehicle; company not disclosed
Feb 2025
KittyHawk Ventures IV, LP
Invested through a fund
Apr 2024
Boost Innovations
Board seat on the company's SEC filing (not by itself proof of an investment) · CA
Mar 2024
QRails
Board seat on the company's SEC filing (not by itself proof of an investment) · CO
Jan 2023

Funds and deal vehicles William L. Weisman filed with the SEC

KittyHawk Heavy MycoMedica 2026 SAFE LLC
Deal vehicle · $2.04M offering
Aug 2026
KittyHawk Heavy Hedy SPV LLC
Deal vehicle · $1.59M offering
May 2026
KittyHawk Heavy Agentic Healthcare LLC
Deal vehicle · $519K offering
May 2026
KittyHawk Heavy Vytalize C-3 LLC
Deal vehicle · $564K offering
Jan 2026
KittyHawk Heavy GAMA DAT III LLC
Deal vehicle · $952K offering
Oct 2025
KittyHawk Heavy SPV Anthropogenic LLC
Deal vehicle · $1.92M offering
Sep 2025
Kittyhawk Heavy Helena SPV MAPS B LLC
Deal vehicle · $553K offering
Sep 2025
KittyHawk Heavy SPV Boost II LLC
Deal vehicle · $950K offering
Aug 2025
KittyHawk Heavy SPV The Robot LLC
Deal vehicle · $619K offering
Mar 2025
KittyHawk Heavy SPV HoprAI II LLC
Deal vehicle · $701K offering
Feb 2025

Sources

SEC Form D: KittyHawk Heavy MycoMedica 2026 SAFE LLCAug 24, 2026
SEC Form D: KittyHawk Heavy Hedy SPV LLCMay 29, 2026
SEC Form D: KittyHawk Heavy Agentic Healthcare LLCMay 15, 2026
SEC Form D: KittyHawk Heavy Vytalize C-3 LLCJan 22, 2026
SEC Form D: KittyHawk Heavy GAMA DAT III LLCOct 7, 2025
SEC Form D: KittyHawk Heavy SPV Anthropogenic LLCSep 25, 2025
SEC Form D: Kittyhawk Heavy Helena SPV MAPS B LLCSep 25, 2025
SEC Form D: KittyHawk Heavy SPV Boost II LLCAug 15, 2025
SEC Form D (board seat): QRailsJan 12, 2023
SEC Form D (board seat): Boost InnovationsMar 8, 2024

Data refreshed from public sources Oct 15, 2026. Is this you? Remove or correct this profile.