# Jane Street: portfolio, investments and team

> Jane Street is a growth equity. 17 investments on record, 12 in the last 12 months, latest Oct 2026. Portfolio, stages, co-investors and team.

Source: https://millionrounds.com/fund/jane-street (Millionrounds; every figure on the page links to its filing or article)

[Investor](https://millionrounds.com/investors)

# Jane Street

Last cheque observed Oct 2026; 17 cheques on record.

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Deploying now Growth equity

Growth Series C Series D

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Deploying now

**100%** of best year **12** **cheques in 12 months**, 17 on record

Since the last cheque **22** days **00** hrs **00** min **00** sec

Median round **$1.0B** Rounds led **5 of 17** Sole investor **1 rounds** Mostly in **United States, 76%**

Pitch Jane Street

## Jane Street highlights

- 01 12 cheques in the last 12 months
- 02 Mostly Growth and Series C: 54% of its rounds
- 03 Sole investor in 1 rounds, median $1.0B

## What they do

- **Type:** Growth equity (from a list, unverified)
- **Cheque size:** Not stated
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **17 appearances**

- **2026** 9 rounds
- **Oct** **[Oxide](https://millionrounds.com/company/oxide)** Series D · US · Pulse 2.0 **$445M** With 9 others
- **Aug** **[Etched](https://millionrounds.com/company/etched)** US · TechCrunch **$700M** *Led*
- **Aug** **[Firmus Technologies](https://millionrounds.com/company/firmus-technologies)** Growth · AU · TechStartups **$2.0B** With 5 others
- **Jun** **[Etched](https://millionrounds.com/company/etched)** Series C · US · TechCrunch **$300M** With 18 others
- **May** **[Anthropic](https://millionrounds.com/company/anthropic)** Series H · US · Crunchbase News **$50B** With 32 others
- **Apr** **[Fluidstack](https://millionrounds.com/company/fluidstack)** US · TechCrunch **$1.0B** *Led*
- **Mar** **[Nscale](https://millionrounds.com/company/nscale)** Series C · GB · 8090 Industries **$2.0B** With 14 others
- **Feb** **[MatX](https://millionrounds.com/company/matx)** Series B · US · TechCrunch **$500M** *Led*
- **Feb** **[Anthropic](https://millionrounds.com/company/anthropic)** Growth · US · Crunchbase News **$30B** With 19 others
- **2025** 7 rounds
- **Dec** **[Kraken](https://millionrounds.com/company/kraken)** Growth · GB · TechStartups **$1.0B** With 15 others
- **Dec** **[Antithesis](https://millionrounds.com/company/antithesis)** Series A · US · Ventureburn **$105M** *Led*
- **Nov** **[X-Energy Reactor Company](https://millionrounds.com/company/x-energy-reactor-company)** Series D · US · Firms' own news pages **$700M** *Led*
- **Sept** **[Anthropic](https://millionrounds.com/company/anthropic)** Series F · US · Crunchbase News **$13B** With 21 others
- **Jul** **[Thinking Machines Lab](https://millionrounds.com/company/thinking-machines-lab)** Series A · US · TechCrunch **$2.0B** With 6 others
- **Mar** **[Anthropic](https://millionrounds.com/company/anthropic)** Debt · US · Crunchbase News **$750M** With 10 others
- **Feb** **[Anthropic](https://millionrounds.com/company/anthropic)** Growth · US · TechCrunch **$3.5B** With 9 others
- **2022** 1 round
- **Aug** **[Cera Care Limited](https://millionrounds.com/company/cera-care-limited)** Growth · GB · Firms' own news pages **$320M** With 10 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## What the register says

From the firm's own filings with the SEC, which it must file accurately by law

**5+** funds on file numbered funds in its name

## The cheque

Growth Series C Series D

Median round joined **$1.0B** the round, not its cheque Alone, median **$1.0B**

Led 5 of 17 rounds **29%**

- **Sole investor:** 1 rounds
- **Last cheque:** Oct 2026

Rounds by stage said on their site

- Growth *5*
- Series C *2*
- Series D *2*
- Series A *2*
- Debt *1*
- Series H *1*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [D1 Capital Partners](https://millionrounds.com/fund/d1-capital-partners) 5
- [General Catalyst](https://millionrounds.com/fund/general-catalyst) 5
- [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) 5
- [Blackstone Group](https://millionrounds.com/fund/blackstone-group) 4
- [Coatue](https://millionrounds.com/fund/coatue-management) 4
- [Fidelity](https://millionrounds.com/fund/fidelity) 4

**Pitching Jane Street?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

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## Who they invest alongside

The investors most often in the same rounds as Jane Street. A count of rooms they were both in, not a relationship either has claimed.

[**D1 Capital Partners** Hedge fund **5** rounds together](https://millionrounds.com/fund/d1-capital-partners)[**General Catalyst** VC firm **5** rounds together](https://millionrounds.com/fund/general-catalyst)[**Lightspeed Venture Partners** VC firm **5** rounds together](https://millionrounds.com/fund/lightspeed-venture-partners)[**Blackstone Group** Private equity **4** rounds together](https://millionrounds.com/fund/blackstone-group)[**Coatue** VC firm **4** rounds together](https://millionrounds.com/fund/coatue-management)[**Fidelity** VC firm **4** rounds together](https://millionrounds.com/fund/fidelity)[**MGX** Growth equity **4** rounds together](https://millionrounds.com/fund/mgx)[**Menlo Ventures** VC firm **4** rounds together](https://millionrounds.com/fund/menlo-ventures)[**NVIDIA** Company **4** rounds together](https://millionrounds.com/fund/nvidia)[**Sequoia Capital** VC firm **4** rounds together](https://millionrounds.com/fund/sequoia-capital)[**Accel** VC firm **3** rounds together](https://millionrounds.com/fund/accel)[**Altimeter** VC firm **3** rounds together](https://millionrounds.com/fund/altimeter-capital)

## Recently backed

The latest companies Jane Street put money into.

[**Etched** $700M · Aug 2026](https://millionrounds.com/company/etched)[**Firmus Technologies** $2.0B · Aug 2026](https://millionrounds.com/company/firmus-technologies)[**Anthropic** $50B · May 2026](https://millionrounds.com/company/anthropic)[**Fluidstack** $1.0B · Apr 2026](https://millionrounds.com/company/fluidstack)[**MatX** $500M · Feb 2026](https://millionrounds.com/company/matx)[**Kraken** $1.0B · Dec 2025](https://millionrounds.com/company/kraken)

## On podcasts

1 episode naming Jane Street in the title, and 3 more that mention it.

- [TBPN](https://millionrounds.com/podcasts/tbpn) 24 Feb 2026 · 3h 10m Citrini Memo Reactions, Kim K Enters Energy Drinks, Jane Street Sued | Patrick & John Collison, Bill Gurley, James Cadwallader, Scott Wu, Ivan Zhao, Stefano Ermon, Rune Kvist, Reiner Pope, Devansh Pandey With [Bill Gurley](https://millionrounds.com/person/bill-gurley)[Ivan Zhao](https://millionrounds.com/person/ivan-zhao) Mentions [Jane Street](https://millionrounds.com/fund/jane-street)[John Collison](https://millionrounds.com/fund/john-collison)[Patrick Collison](https://millionrounds.com/fund/patrick-collison) Apple PodcastsShow page

### Mentioned in

- [VC10X](https://millionrounds.com/podcasts/vc10x) 20 Aug 2026 · 7 min VC10X Pulse - Etched Just Doubled Its Valuation to $21B in 1 Month, Here's What They're Building Apple PodcastsShow page
- [TBPN](https://millionrounds.com/podcasts/tbpn) 8 Jul 2025 · 2h 24m Meta Poaches Apple's Top AI Executive, Replit Partners with Microsoft, Unilever Goes Viral with AI | Alex Roy, Ryan Petersen, Jonathon Barkl, Jonathan Ross, Craig Piggott, Jacob Glanville Apple PodcastsShow page
- [Invest Like the Best](https://millionrounds.com/podcasts/invest-like-the-best) 19 Oct 2021 · 1h 18m Sam Bankman-Fried - Creating a Perfect Market - [Invest Like the Best, EP. 247] Apple PodcastsShow page

## Quick answers about Jane Street

### What does Jane Street invest in?

Jane Street invests most often at Growth and Series C (54% of the rounds on record).

### How active is Jane Street?

17 investments on record, 12 of them in the last 12 months, and it led 5. The most recent was in Oct 2026.

### What has Jane Street invested in recently?

Its most recent investments on record: Oxide (Series D, Oct 2026), Etched (Undisclosed round, Aug 2026) and Firmus Technologies (Growth, Aug 2026).

### How big are Jane Street's cheques?

The median round it joins is $1.0B.

### Does Jane Street lead rounds?

Yes: it led 5 of its 17 investments on record (29%).

### Where does Jane Street invest?

Most of the companies it backs are in the United States (76%), the United Kingdom (18%) and Australia (6%).

### Is Jane Street investing now?

Yes: it is actively investing, with 12 investments in the last 12 months.

### Who does Jane Street invest alongside?

Most often D1 Capital Partners (5 rounds together), General Catalyst (5 rounds together) and Lightspeed Venture Partners (5 rounds together).

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