KZR
Kezar Life Sciences, Inc.
$7.29
+0.00 (+0.00%)
At close · May 11
Market Cap
$53.86M
Shares
7,387,701
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 44
Total Value: $34,759,799
Total Shares: 4,684,612
Institutional Ownership Trend
8 quarters
Holder Concentration
Across 44 13F filers · Δ vs Dec 31, 2025Top Holder
15.4%
−0.4 pts
Top 5
56.3%
−3.1 pts
Top 10
75.7%
−0.4 pts
HHI
852
Broadly held−42
Quarterly Activity
vs Dec 31, 2025
New
13
Increased
9
Decreased
9
Sold Out
13
Unchanged
13
Holder count:
0
Institutional value:
+20.7%
Shares held:
+2.3%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small Rangeley Capital, LLC | +157,147 | 243,073 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +82,900 | 201,600 | |
| Large RENAISSANCE TECHNOLOGIES LLC | +57,141 | 188,426 | |
| Small TORNO CAPITAL, LLC | +28,479 | 48,479 | |
| Large ACADIAN ASSET MANAGEMENT LLC | +26,259 | 151,630 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid ADAR1 Capital Management, LLC | −35,507 | 81,933 | |
| Micro Vazirani Asset Management LLC | −26,428 | 22,000 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | −7,179 | 60,988 | |
| Mega MORGAN STANLEY | −1,400 | 4,285 | |
| Mid Tower Research Capital LLC (TRC) | −302 | 262 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 290,529 | $2,155,725 | |
| Mega MILLENNIUM MANAGEMENT LLC | 142,050 | $1,054,011 | |
| Mid Groupe la Francaise | 80,400 | $596,568 | |
| Mega CITADEL ADVISORS LLC | 75,203 | $558,006 | |
| Small EQUITEC PROPRIETARY MARKETS, LLC | 57,500 | $426,650 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 341,404 | $2,147,430 | |
| Mid Nantahala Capital Management, LLC | 276,754 | $1,740,782 | |
| Small Stonepine Capital Management, LLC | 156,179 | $982,365 | |
| Mid PRELUDE CAPITAL MANAGEMENT, LLC | 52,929 | $332,923 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | 51,638 | $324,803 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Small BML Capital Management, LLC | $5,348,239 | 15.39% | 720,787 | Shares | Sole | 2026-05-06 | ||||
| Mid SUVRETTA CAPITAL MANAGEMENT, LLC | $5,318,351 | 15.30% | 716,759 | Shares | Sole | 2026-05-15 | ||||
| Mid TANG CAPITAL MANAGEMENT LLC | $4,929,209 | 14.18% | 664,314 | Shares | Other | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $2,155,725 | 6.20% | 290,529 | Shares | Defined | 2026-05-15 | ||||
| Small Rangeley Capital, LLC | $1,803,601 | 5.19% | 243,073 | Shares | Sole | 2026-05-15 | ||||
| Mid Affinity Asset Advisors, LLC | $1,699,743 | 4.89% | 229,076 | Shares | Sole | 2026-05-14 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $1,398,120 | 4.02% | 188,426 | Shares | Sole | 2026-05-14 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $1,125,094 | 3.24% | 151,630 | Shares | Defined | 2026-05-13 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,111,516 | 3.20% | 149,800 | Call | Other | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $1,054,011 | 3.03% | 142,050 | Shares | Sole | 2026-05-15 | ||||
| Small Peapod Lane Capital LLC | $940,054 | 2.70% | 126,692 | Shares | Sole | 2026-05-04 | ||||
| Mid Ikarian Capital, LLC | $758,405 | 2.18% | 102,211 | Shares | Sole | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $742,473 | 2.14% | 100,064 | Shares | Sole | 2026-05-13 | ||||
| Mid ADAR1 Capital Management, LLC | $607,942 | 1.75% | 81,933 | Shares | Sole | 2026-05-18 | ||||
| Mid Groupe la Francaise | $596,568 | 1.72% | 80,400 | Shares | Defined | 2026-05-21 | ||||
| Small Aldebaran Capital, LLC | $596,085 | 1.71% | 80,335 | Shares | Sole | 2026-05-07 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $452,530 | 1.30% | 60,988 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $440,770 | 1.27% | 59,403 | Shares | Defined | 2026-05-15 | ||||
| Small CREDIT INDUSTRIEL ET COMMERCIAL | $397,712 | 1.14% | 53,600 | Shares | Defined | 2026-04-29 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $384,356 | 1.11% | 51,800 | Put | Other | 2026-05-15 | ||||
| Small TORNO CAPITAL, LLC | $359,714 | 1.03% | 48,479 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $305,711 | 0.88% | 41,201 | Shares | Defined | 2026-05-08 | ||||
| Small EQUITEC PROPRIETARY MARKETS, LLC | $281,960 | 0.81% | 38,000 | Put | Sole | 2026-05-11 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $225,078 | 0.65% | 30,334 | Shares | Sole | 2026-05-07 | ||||
| Mid RBF Capital, LLC | $208,828 | 0.60% | 28,144 | Shares | Sole | 2026-05-18 | ||||
| Mega STATE STREET CORP | $201,030 | 0.58% | 27,093 | Shares | Defined | 2026-05-15 | ||||
| Small Yakira Capital Management, Inc. | $178,080 | 0.51% | 24,000 | Shares | Sole | 2026-05-14 | ||||
| Micro Vazirani Asset Management LLC | $163,240 | 0.47% | 22,000 | Shares | Sole | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $158,542 | 0.46% | 21,367 | Shares | Defined | 2026-05-12 | ||||
| Small EQUITEC PROPRIETARY MARKETS, LLC | $144,690 | 0.42% | 19,500 | Shares | Sole | 2026-05-11 | ||||
| Mid XTX Topco Ltd | $144,652 | 0.42% | 19,495 | Shares | Defined | 2026-05-15 | ||||
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $120,278 | 0.35% | 16,210 | Shares | Other | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $117,236 | 0.34% | 15,800 | Put | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $102,121 | 0.29% | 13,763 | Shares | Defined | 2026-05-14 | ||||
| Mega FMR LLC | $75,743 | 0.22% | 10,208 | Shares | Defined | 2026-05-15 | ||||
| Mega WELLS FARGO & COMPANY/MN | $43,006 | 0.12% | 5,796 | Shares | Defined | 2026-05-11 | ||||
| Mega MORGAN STANLEY | $31,793 | 0.09% | 4,285 | Shares | Defined | 2026-05-15 | ||||
| Large NewEdge Advisors, LLC | $16,145 | 0.05% | 2,176 | Shares | Sole | 2026-06-03 | ||||
| Mega Vanguard Global Advisers, LLC | $12,888 | 0.04% | 1,737 | Shares | Defined | 2026-05-08 | ||||
| Mega ROYAL BANK OF CANADA Bank | $2,389 | 0.01% | 322 | Shares | Defined | 2026-05-15 | ||||
| Small Caitong International Asset Management Co., Ltd | $2,285 | 0.01% | 308 | Shares | Sole | 2026-05-11 | ||||
| Mid Tower Research Capital LLC (TRC) | $1,944 | 0.01% | 262 | Shares | Defined | 2026-05-15 | ||||
| Mega JPMORGAN CHASE & CO | $808 | 0.00% | 109 | Shares | Defined | 2026-05-13 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $660 | 0.00% | 89 | Shares | Defined | 2026-05-12 | ||||
| Mid Allworth Financial LP | $371 | 0.00% | 50 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $96 | 0.00% | 13 | Shares | Defined | 2026-05-05 | ||||
| Mega BARCLAYS PLC | $7 | 0.00% | 1 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||