Kezar Life Sciences, Inc.
KZR • NASDAQ
Kezar Life Sciences, Inc. is a biotechnology company in the healthcare sector on NASDAQ, led by Christopher Kirk, Ph.D., with a market cap of $45.7M. As of Q3 2025, 57% of shares are held by 38 institutional investors, with BML Capital Management, LLC as the largest holder at 9.84%.
Chief Executive OfficerChristopher Kirk, Ph.D.
Market Cap$45.7M
Biotechnology
Healthcare
Employees58.0
Websitekezarlifesciences.com
Country
United States of America
Overview
Overview of institutional ownership in KZR as of Q3 2025 with a market cap of $28.6M
All Institutions
- Institutions
- 38
- Value Held
- $16.4M
- Shares Held
- 4.2M
- Avg Position
- $431.7K
- Median Position
- $91.5K
Hedge Funds
- Hedge Funds
- 9
- Value Held
- $5.3M
- Shares Held
- 1.4M
- Avg Position
- $592.1K
- Median Position
- $416.9K
Ownership Breakdown
Based on market cap of $28.6M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in KZR as of Q3 2025
| Institution | Position Value |
|---|---|
B BML Capital Management, LLC Institution | $2.8M 2.54% of portfolio |
T TANG CAPITAL MANAGEMENT LLC Institution | $2.8M 0.11% of portfolio |
 SUVRETTA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short | $2.8M 0.08% of portfolio |
S Stonepine Capital Management, LLC Institution | $1.5M 1.21% of portfolio |
 VANGUARD GROUP INC Institution | $1.0M 0.00% of portfolio |
 ORBIMED ADVISORS LLC Hedge Fund•Sector | $751.5K 0.02% of portfolio |
 ACADIAN ASSET MANAGEMENT LLC Long Only Manager | $520.7K 0.00% of portfolio |
P Peapod Lane Capital LLC Institution | $490.5K 0.44% of portfolio |
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short | $487.4K 0.05% of portfolio |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $452.0K 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for KZR in Q3 2025
- Traded
- −$1.4M
- Buyers
- 11
- Sellers
- 11
- Total Bought
- +$1.4M
- Total Sold
- −$2.9M
- Avg Position
- $390.6K
Biggest Buyers
| Institution | Net Bought |
|---|---|
S Stonepine Capital Management, LLC Institution | +$832.0K +213.3K shares |
B BML Capital Management, LLC Institution | +$333.9K +85.6K shares |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$111.5K +28.6K shares |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$71.1K +18.2K shares |
 LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Market Neutral | +$50.9K +13.0K shares |
P Peapod Lane Capital LLC Institution | +$41.5K +10.7K shares |
T Tower Research Capital LLC Institution | +$4.1K +1.0K shares |
B BlackRock, Inc. Institution | +$1.7K +432.0 shares |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$1.5K +383.0 shares |
 UBS Group AG Institution | +$1.2K +315.0 shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
A Avidity Partners Management LP Hedge Fund•Long/Short | −$2.3M −502.6K shares |
S SPHERA FUNDS MANAGEMENT LTD. Institution | −$268.1K −58.5K shares |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$117.6K −25.7K shares |
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short | −$87.5K −22.4K shares |
 FMR LLC Institution | −$54.3K −13.9K shares |
VANGUARD GROUP INC Institution | −$31.4K −8.1K shares |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | −$26.3K −6.7K shares |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | −$4.7K −1.2K shares |
 MORGAN STANLEY RIA/Wealth | −$3.4K −873.0 shares |
 TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy | −$1.5K −380.0 shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited KZR in Q3 2025
- New Positions
- 1
- New Value
- $50.9K
- Exited Positions
- 4
- Exited Value
- $2.7M
New Positions
| Institution | Position Value |
|---|---|
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Market Neutral | $50.9K 13.0K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
A Avidity Partners Management LP Hedge Fund•Long/Short | $2.3M 502.6K shares |
S SPHERA FUNDS MANAGEMENT LTD. Institution | $268.1K 58.5K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | $117.6K 25.7K shares |
S SIMPLEX TRADING, LLC Institution | - 43.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in KZR as of Q3 2025
- Call Positions
- 1
- Call Value
- $61.2K
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $61.2K 157.0 contracts |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with KZR as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
B BML Capital Management, LLC Institution | 2.54% $2.8M |
S Stonepine Capital Management, LLC Institution | 1.21% $1.5M |
Q Qiming U.S. Ventures Management, LLC Institution | 0.58% $323.2K |
P Peapod Lane Capital LLC Institution | 0.44% $490.5K |
T TANG CAPITAL MANAGEMENT LLC Institution | 0.11% $2.8M |
SUVRETTA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short | 0.08% $2.8M |
 Ikarian Capital, LLC Hedge Fund•Event Driven | 0.08% $416.9K |
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short | 0.05% $487.4K |
S Shay Capital LLC Institution | 0.05% $263.9K |
ORBIMED ADVISORS LLC Hedge Fund•Sector | 0.02% $751.5K |
Hedge Fund Spotlight
Discover hedge funds investing in KZR
A
ADAR1 Capital Management, LLC
Hedge Fund • Long/Short
Portfolio ManagerDaniel Pawel Schneeberger
- Portfolio Value
- $993.7M
- Positions
- 191
- Last Reported
- Q3 2025
Sector Allocation
Position in Kezar Life Sciences, Inc.
- Market Value
- $487.4K
- Shares Held
- 125.0K
- Portfolio Weight
- 0.05%
- Owned Since
- 2024-Q1
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Unknown Unknown | $114.7M | 11.54% | |
Biotechnology Healthcare | $85.3M | 8.58% | |
Biotechnology Healthcare | $65.7M | 6.61% |
