M12 | Activity | F4

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M12 Activity

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

Types

Time range

Essay

M12 Managing Partner Todd Graham published a deep technical essay on the gap between agent promises and enforceable contracts, exploring the spectrum from prompt-based constraints to hard sandbox guarantees for LLM agent behavior.

From Promises to Contracts: Enforceable Behavior in LLM Agents

M12

m12.vc

Added recently

Milestone

HiddenLayer, an M12 portfolio company, raised $100M as enterprises rush to secure their AI deployments. M12 is an investor.

HiddenLayer raises $100M for AI security

M12

techcrunch.com

Added recently

5 investments· APR 2026 – MAY 2026Show all

Investment

Participated in Cinder's $41M Series B for AI-native trust and safety infrastructure.

Cinder

Cinder M12

cinder.aiMAY 12, 2026

thesaasnews.com

MAY 12, 2026

Investment

Participated in Vapi's $50M Series B for enterprise voice AI infrastructure.

Vapi

Vapi M12

vapi.aiMAY 12, 2026

globenewswire.com

MAY 12, 2026

Investment

Led Auctor AI's $20M Series A for AI-powered enterprise automation.

Auctor AI

Auctor AI M12

cbinsights.comAPR 15, 2026

APR 15, 2026

Investment

Co-invested in nEye Systems' $80M Series C for computer vision technology.

nEye Systems

nEye SystemsM12

cbinsights.comAPR 14, 2026

APR 14, 2026

Investment

Participated in NeuBird AI's $19.5M Series B for neural processing systems.

NeuBird AI

NeuBird AI M12

cbinsights.comAPR 6, 2026

APR 6, 2026

Exit

Portfolio company GroundTruth acquired by ZeroToOne.AI.

GroundTruth

GroundTruth M12

cbinsights.comMAR 25, 2026

MAR 25, 2026

3 investments· JAN 2026 – MAR 2026Show all

Investment

Invested in Lace's Series A for helium atom beam lithography technology enabling 10x smaller chip designs.

Lace

Lace M12

reuters.comMAR 23, 2026

MAR 23, 2026

Investment

Led Neurophos' $110M Series A for photonic AI chips enabling exaflop-scale optical processing units.

Neurophos

Neurophos M12

m12.vcJAN 22, 2026

JAN 22, 2026

Investment

Co-led Cloudforce's $10M Series A for regulated AI in higher education.

Cloudforce

CloudforceM12

m12.vcJAN 11, 2026

JAN 11, 2026

Exit

Portfolio company SGNL acquired by CrowdStrike for endpoint security.

SGNL

SGNL M12

cbinsights.comJAN 8, 2026

JAN 8, 2026