1517 Fund | Activity | F4

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1517 Fund Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Investment

Participated in Reprogram Biosciences' seed round alongside Unshackled Ventures and Narya to advance mRNA-based tumor cell reprogramming therapeutics.

Reprogram Biosciences

Reprogram Biosciences 1517 Fund

biospace.comMAY 27, 2026

MAY 27, 2026

Milestone

Opened applications for Flux Capacitor 2026, providing $50k-$1M investments for moonshot scientists and unconventional founders.

Flux Capacitor 2026 Program Launch

techpression.comMAR 30, 2026

MAR 30, 2026

Investment

Participated in Positron AI's $51.6M Series A for inference-optimized AI hardware.

Positron AI

Positron AI 1517 Fund

readmagazine.comFEB 2026

businesswire.com

FEB 2026

Exit

Portfolio company Luminar Technologies' semiconductor division sold to Quantum Computing Inc. for $110M.

Luminar Technologies

Luminar Technologies 1517 Fund

investors.luminartech.comDEC 2025

DEC 2025

Milestone

Portfolio company Lambda raised $1.5B Series E, reaching $5.9B valuation for AI infrastructure.

Lambda Labs

Lambda Labs 1517 Fund

businesswire.comNOV 18, 2025

NOV 18, 2025

Investment

Invested in Loomia, an e-textile circuit technology provider for smart textiles applications.

Loomia

Loomia 1517 Fund

pitchbook.comNOV 12, 2025

NOV 12, 2025

Essay

Danielle Strachman published essay on 1517's founding journey, fund evolution, and LP transparency in venture.

A Drop in the Ocean

1517.substack.comOCT 2, 2025

OCT 2, 2025

Essay

Danielle Strachman shared the journey of building 1517 Fund, reflecting on the path from founding to Fund IV with lessons on effort, timing, and founder belief.

A drop in the ocean - Building 1517

1517.substack.comOCT 2025

OCT 2025

4 investments· MAY 2025 – SEP 2025Show all

Investment

Participated in Astrus's $8M seed round (co-led by Khosla Ventures) for AI-powered semiconductor design automation.

Astrus

Astrus 1517 Fund

thesaasnews.comSEP 2025

businesswire.com

SEP 2025

Investment

Participated in $51.6M Series A for energy-efficient AI inference hardware development.

Positron AI

Positron AI 1517 Fund

businesswire.comJUL 2025

finance.yahoo.com

JUL 2025

Investment

Participated in Rainmaker's $25M Series A led by Lowercarbon Capital for advanced cloud seeding technology.

Rainmaker

Rainmaker 1517 Fund

finsmes.comMAY 5, 2025

MAY 5, 2025

Investment

Participated in $25M Series A for cloud seeding drone technology to enhance precipitation.

Rainmaker Technology

Rainmaker Technology 1517 Fund

axios.comMAY 5, 2025

MAY 5, 2025

New Fund

Closed Fund IV. Transition milestone marking 1517 as established firm (less than 15% of funds reach Fund IV).

Fund IV

1517.substack.comMAY 2025

MAY 2025

Investment

Led Miist Therapeutics's $7M funding round for biotech development.

Miist Therapeutics

Miist Therapeutics1517 Fund

tracxn.comFEB 2025

businesswire.com

FEB 2025