# YK Bioventures: portfolio, investments and team

> YK Bioventures is a vc firm. 2 investments on record, 2 in the last 12 months, latest Oct 2026. Portfolio, stages, co-investors and team.

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

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

# YK Bioventures

Last cheque observed Oct 2026; 2 cheques on record.

Deploying now New fund, Jul 2026 VC firm

Series B Venture Capital & Private Equity

Deploying now

**100%** of best year **2** **cheques in 12 months**, 2 on record

Since the last cheque **2** days **00** hrs **00** min **00** sec

Median round **$125M** Rounds led **0 of 2**

Pitch YK Bioventures

## YK Bioventures highlights

- 01 2 cheques in the last 12 months
- 02 Mostly Series B: 100% of its rounds

## What they do

- **Type:** VC firm (from a list, unverified)
- **Cheque size:** Not stated
- **Sectors:** Venture Capital & Private Equity
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **2 appearances**

- **2026** 1 round
- **Oct** **[Bolt Biotherapeutics](https://millionrounds.com/company/bolt-biotherapeutics)** US · Pulse 2.0 **$120M** With 11 others
- **2025** 1 round
- **Dec** **[Protego Biopharma](https://millionrounds.com/company/protego-biopharma)** Series B · US · Firms' own news pages **$130M** With 9 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 **2 named**

GY **Gary Yeung** Manager of the General Partner i Filing they signed

MW **Mitchell William Kossar** Manager of the General Partner i Filing they signed

We also hold **2** 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

**$55M** gross assets of its funds Oct 2026

**Exempt** reporting adviser venture or small private funds

- **Legal name:** YK Bioventures Capital Partners LLC
- **SEC number:** CRD 332081

New fund on file

**Raised**

a new fund in Jul 2026

From its SEC filing, not a journalist: a firm that has just raised has money to deploy.

## The cheque

Series B

Median round joined **$125M** the round, not its cheque

Led 0 of 2 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** Oct 2026

Rounds by stage said on their site

- Series B *1*

Cheques by month Led Joined

Nov 2023 Oct 2026

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

Add to your CRM *→*

## Quick answers about YK Bioventures

### What does YK Bioventures invest in?

YK Bioventures invests most often at Series B (100% of the rounds on record), in sectors such as Venture Capital & Private Equity.

### How active is YK Bioventures?

2 investments on record, 2 of them in the last 12 months. The most recent was in Oct 2026.

### What has YK Bioventures invested in recently?

Its most recent investments on record: Bolt Biotherapeutics (Undisclosed round, Oct 2026) and Protego Biopharma (Series B, Dec 2025).

### How big are YK Bioventures's cheques?

The median round it joins is $125M.

### Is YK Bioventures investing now?

Yes: it is actively investing, with 2 investments in the last 12 months.

### What kind of investor is YK Bioventures?

YK Bioventures is a VC firm.

### How much does YK Bioventures manage?

About $55M, as gross assets of its private funds (Oct 2026).

### Has YK Bioventures raised a new fund?

Its latest fund filing with the SEC was in Jul 2026.

## Raising now?

Find the investors who back rounds like yours, and keep every conversation on one fundraising board.

Find similar investorsOpen your CRM

Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=yk-bioventures) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=yk-bioventures)
