MTS Atlas
Built with+
SituationsCompaniesModelsInvestors
← All investors
JS

Firm & fund profile / Sourced portfolio

Jane Street

Tracked participation in 6 Atlas companies, with 2 explicitly attributed leads.

6portfolio companies
14round participations
2lead positions
$2.2Bled round total
Conviction

Most recent leads

The latest rounds this investor is sourced as leading, newest first.

Sep 2026FluidstackSeries B$1.5Bat $18B valuationAug 2026EtchedSeries D (per Etched progress post wording as a production-acceleration round)$700Mat $21B valuation
Capital activity

Portfolio

CompanyLatest valuationFirst → latestRoundsRoleLatest round
FFluidstack logoFluidstack$18BSep 2026 → Sep 20261 round1 ledSeries B
EEtched logoEtched$21B— → Aug 20265 rounds1 ledSeries D (per Etched progress post wording as a production-acceleration round)
NNscale logoNscale$14.6BMar 2026 → Mar 20261 roundParticipantSeries C
AAnthropic logoAnthropic$380BMar 2025 → Feb 20263 roundsParticipantSeries G
TMThinking Machines Lab logoThinking Machines Lab$12B— → Jul 20252 roundsParticipantSeed
MMagic logoMagic—Aug 2024 → Sep 20242 roundsParticipantEquity Only (Form D)