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Daniel E. Hatkoff

Solo GP · Santa Monica, CA

Verified active in the last 12 months

Daniel E. Hatkoff is a solo GP based in Santa Monica, CA, investing at pre-seed, seed stage. Daniel E. Hatkoff's most recent fund with a disclosed size, Rainy Day Founders Fund I, LP, filed a $9.46M offering with the SEC in Jan 2026. Estimated typical check: $100K–$300K. Daniel E. Hatkoff has dated investing activity in the last 12 months (latest Jan 2026).

Why Daniel E. Hatkoff is listed

Named as the only individual (Manager of the General Partner.) on the Form D for Rainy Day Founders Fund I, LP, a $9.5M venture fund (Jan 2026).

Source: SEC Form D: Rainy Day Founders Fund I, LP (Jan 16, 2026)

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Stages
Pre-seed, Seed
Typical check (est.)
$100K–$300K
Latest fund
$9.46M · Jan 2026
Latest dated activity
Jan 2026

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What does Daniel E. Hatkoff invest in?

Sector focus not yet verified

What has Daniel E. Hatkoff invested in recently?

  • Rainy Day Founders Fund I, LP

    Invested through a fund

    Jan 2024

Funds and deal vehicles Daniel E. Hatkoff filed with the SEC

  • Rainy Day Founders Fund I, LP

    Fund · $9.46M offering

    Jan 2026

Sources

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