# Baker Brothers Investments: portfolio, investments and team

> Baker Brothers Investments is a growth equity. 11 investments on record, latest Apr 2013. Portfolio, stages, co-investors and team.

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

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

# Baker Brothers Investments

Last cheque observed Apr 2013. Silence since then is not evidence of inactivity: our sources miss unannounced rounds.

Quiet Growth equity

Series F Series B Series C

Cheques on record

**0%** of best year **0** **cheques in 12 months**, 11 on record

Since the last cheque **4954** days **00** hrs **00** min **00** sec

Median round **$25M** Rounds led **0 of 11** Exits **1 from the portfolio** Mostly in **United States, 82%**

Pitch Baker Brothers Investments

## Baker Brothers Investments highlights

- 01 11 rounds on record
- 02 Mostly Series F and Series B: 45% of its rounds
- 03 1 exits from the portfolio

## What they do

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

## The record

Every round we can evidence, newest first **11 appearances**

- **2013** 1 round
- **Apr** **[Aquinox Pharmaceuticals](https://millionrounds.com/company/aquinox-pharmaceuticals)** Series C · CA · finance.yahoo.com **$18M** With 4 others
- **2012** 1 round
- **Oct** **[Presidio Pharmaceuticals](https://millionrounds.com/company/presidio-pharmaceuticals)** Venture · US **$8.0M** With 2 others
- **2011** 1 round
- **Mar** **[Synageva BioPharma](https://millionrounds.com/company/synageva-biopharma)** Venture · US · masshightech.com **$25M** With 3 others
- **2010** 1 round
- **Jun** **[Aquinox Pharmaceuticals](https://millionrounds.com/company/aquinox-pharmaceuticals)** Series B · CA · aqxpharma.com **$25M** With 3 others
- **2009** 4 rounds
- **Oct** **[Synageva BioPharma](https://millionrounds.com/company/synageva-biopharma)** Series F · US · altassets.net **$12M** With 4 others
- **Jul** **[PharmAthene](https://millionrounds.com/company/pharmathene)** Secondary · US · ir.pharmathene.com **$19M** With 3 others
- **Apr** **[Synageva BioPharma](https://millionrounds.com/company/synageva-biopharma)** Series F · US · pehub.com **$30M** With 1 other
- **Feb** **[diaDexus](https://millionrounds.com/company/diadexus)** Series F · US · deals.stage.venturebeat.com **$9.2M** With 2 others
- **2007** 3 rounds
- **Aug** **[Presidio Pharmaceuticals](https://millionrounds.com/company/presidio-pharmaceuticals)** Series B · US · presidiopharma.com **$26M** With 4 others
- **Mar** **[Phenomix](https://millionrounds.com/company/phenomix)** Series C · US · phenomixcorp.com **$55M** With 10 others
- **Jan** **[diaDexus](https://millionrounds.com/company/diadexus)** Series E · US · scalevp.com **$40M** With 6 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.

## The team

Named by the firm itself, on a filing, its Form ADV or its company registration **4 named**

AA **Alexandra Ann Toohey** Chief Financial Officer i Form ADV

FJ **Felix James Baker** Limited Partner i Form ADV

JC **Julian Charles Baker** Limited Partner i Form ADV

SL **Scott Lawrence Lessing** President, Chief Compliance Officer i Form ADV

We also hold **4** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## What the register says

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

**$28B** assets it manages Oct 2026

**Registered** investment adviser full reporting to the SEC

- **Legal name:** Baker Bros. Advisors LP
- **SEC number:** CRD 158149

Funds on its Form ADV

**2** private funds, **$22B** in gross assets · filed Mar 2024

- Baker Brothers Life Sciences, L.P. *Hedge* 330 investors $20B
- 667, L.P. *Hedge* 9 investors $1.5B

## Exits from the portfolio

Companies it backed that were later bought or listed **1 in all**

**[Synageva BioPharma](https://millionrounds.com/company/synageva-biopharma)** Bought by [Alexion Pharmaceuticals](https://millionrounds.com/fund/alexion-pharmaceuticals) **$8.4B** May 2015

An exit counts when it came after the firm's first round in the company. From historical deal records.

## The cheque

Series F Series B Series C

Median round joined **$25M** the round, not its cheque

Led 0 of 11 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** Apr 2013
- **Exits:** 1 from the portfolio

Rounds by stage said on their site

- Series F *3*
- Series B *2*
- Series C *2*
- Venture *2*
- Secondary *1*
- Series E *1*

Cheques by year Led Joined

2007 2013

Often in the room with

- [New Leaf Venture Partners](https://millionrounds.com/fund/new-leaf-venture-partners) 3
- [Ventures West](https://millionrounds.com/fund/ventures-west) 3
- [Bay City Capital](https://millionrounds.com/fund/bay-city-capital) 2
- [GSK Venture Fund](https://millionrounds.com/fund/gsk-venture-fund) 2
- [Johnson & Johnson Development Corporation (JJDC)](https://millionrounds.com/fund/johnson-and-johnson-development-corporation) 2
- [Panorama Capital](https://millionrounds.com/fund/panorama-capital) 2

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## Who they invest alongside

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

[**New Leaf Venture Partners** VC firm **3** rounds together](https://millionrounds.com/fund/new-leaf-venture-partners)[**Ventures West** VC firm **3** rounds together](https://millionrounds.com/fund/ventures-west)[**Bay City Capital** VC firm **2** rounds together](https://millionrounds.com/fund/bay-city-capital)[**GSK Venture Fund** Growth equity **2** rounds together](https://millionrounds.com/fund/gsk-venture-fund)[**Johnson & Johnson Development Corporation (JJDC)** VC firm **2** rounds together](https://millionrounds.com/fund/johnson-and-johnson-development-corporation)[**Panorama Capital** VC firm **2** rounds together](https://millionrounds.com/fund/panorama-capital)[**Pfizer** Corporate VC **2** rounds together](https://millionrounds.com/fund/pfizer)[**Scale Venture Partners** VC firm **2** rounds together](https://millionrounds.com/fund/scale-venture-partners)[**Tullis Health Investors** Private equity **2** rounds together](https://millionrounds.com/fund/tullis-health-investors)[**Yasuda Enteprise Development Co. Ltd** Growth equity **2** rounds together](https://millionrounds.com/fund/yasuda-enteprise-development-co-ltd)

## Quick answers about Baker Brothers Investments

### What does Baker Brothers Investments invest in?

Baker Brothers Investments invests most often at Series F and Series B (45% of the rounds on record).

### How active is Baker Brothers Investments?

11 investments on record, 0 of them in the last 12 months. The most recent was in Apr 2013.

### How big are Baker Brothers Investments's cheques?

The median round it joins is $25M.

### Does Baker Brothers Investments lead rounds?

Rarely, if at all: none of its 11 investments on record names it as the lead.

### Where does Baker Brothers Investments invest?

Most of the companies it backs are in the United States (82%) and Canada (18%).

### Is Baker Brothers Investments investing now?

No investments in the last 12 months; the latest was in Apr 2013.

### Who does Baker Brothers Investments invest alongside?

Most often New Leaf Venture Partners (3 rounds together), Ventures West (3 rounds together) and Bay City Capital (2 rounds together).

### What kind of investor is Baker Brothers Investments?

Baker Brothers Investments is a growth equity firm based in NEW YORK.

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