← All investors

JA

Angel & individual profile / Sourced portfolio

Jack Altman

Tracked participation in 5 Atlas companies, with 0 explicitly attributed leads.

5portfolio companies

6round participations

0lead positions

Apr 2026latest activity

Capital activity

Portfolio

CompanyLatest valuationFirst → latestRoundsRoleAttributed partner

RRogo—Oct 2024 → Apr 20262 roundsParticipant—

DDecagon—Jun 2024 → Jun 20241 roundParticipant—

BBraintrust—Dec 2023 → Dec 20231 roundParticipant—

LLlamaIndex—Jun 2023 → Jun 20231 roundParticipant—

WWriter—Nov 2021 → Nov 20211 roundParticipant—

DateCompanyRoundRaisedValuationRoleEvidence

Apr 29, 2026RRogoSeries D$160M—Participant

Oct 01, 2024RRogoSeries A$18.5M—Participant

Jun 18, 2024DDecagonSeries A$30M—Participant

Dec 13, 2023BBraintrustSeed$5.1M—Participant

Jun 06, 2023LLlamaIndexSeed$8.5M—Participant

Nov 15, 2021WWriterSeries A$21M—Participant

DateCompanyRoundRaisedValuationRoleEvidence

Apr 29, 2026RRogoSeries D$160M—Participant

Jun 18, 2024DDecagonSeries A$30M—Participant

Nov 15, 2021WWriterSeries A$21M—Participant

Oct 01, 2024RRogoSeries A$18.5M—Participant

Jun 06, 2023LLlamaIndexSeed$8.5M—Participant

Dec 13, 2023BBraintrustSeed$5.1M—Participant