HolderBook

KEZAR LIFE SCIENCES INC (KZR)

Institutional ownership reported to the SEC as of Q1 2026, across 30 quarters.

45
Reporting holders
$35.3M
Reported value
3.6%
Calls
2.2%
Puts
-1
Holder change

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
BML Capital Management, LLC$5.3M720,7873.43%6qHELD
SUVRETTA CAPITAL MANAGEMENT, LLC$5.3M716,7590.14%6qHELD
TANG CAPITAL MANAGEMENT LLC$4.9M664,3140.25%6qHELD
VANGUARD CAPITAL MANAGEMENT LLC$2.2M290,5290.00%newFIRST
Rangeley Capital, LLC$1.8M243,0731.75%2q+182.9%+$1.2M
Affinity Asset Advisors, LLC$1.7M229,0760.09%2qHELD
SUSQUEHANNA INTERNATIONAL GROUP, LLP$1.5Moptions only0.00%2qOPTIONS
RENAISSANCE TECHNOLOGIES LLC$1.4M188,4260.00%6q+43.5%+$424.0K
ACADIAN ASSET MANAGEMENT LLC$1.1M151,6300.00%6q+20.9%+$194.5K
MILLENNIUM MANAGEMENT LLC$1.1M142,0500.00%newNEW
Peapod Lane Capital LLC$924.5K126,6920.76%6qHELD
Ikarian Capital, LLC$758.4K102,2110.06%6qHELD
BlackRock, Inc.$742.5K100,0640.00%6q+1.4%+$10.2K
TORNO CAPITAL, LLC$719.4K96,9580.05%2q+142.4%+$422.6K
ADAR1 Capital Management, LLC$607.9K81,9330.04%7q-30.2%-$263.5K
Groupe la Francaise$596.6K80,4000.01%newNEW
Aldebaran Capital, LLC$596.1K80,3350.46%2qHELD
CITADEL ADVISORS LLC$558.0K59,4030.00%newNEW
GEODE CAPITAL MANAGEMENT, LLC$452.6K60,9880.00%6q-10.5%-$53.3K
EQUITEC PROPRIETARY MARKETS, LLC$426.6K19,5000.23%newNEW
CREDIT INDUSTRIEL ET COMMERCIAL$397.7K53,6000.03%newNEW
VANGUARD FIDUCIARY TRUST CO$305.7K41,2010.00%newFIRST
DIMENSIONAL FUND ADVISORS LP$225.1K30,3340.00%6q+14.3%+$28.1K
RBF Capital, LLC$208.8K28,1440.01%6q-50.0%-$208.8K
STATE STREET CORP$201.0K27,0930.00%6qHELD
Yakira Capital Management, Inc.$178.1K24,0000.05%newNEW
Vazirani Asset Management LLC$163.2K22,0000.38%2q-54.6%-$196.1K
JANE STREET GROUP, LLC$158.5K21,3670.00%newNEW
SIMPLEX TRADING, LLC$147.7Koptions only0.00%2qOPTIONS
XTX Topco Ltd$144.7K19,4950.00%newNEW
BOOTHBAY FUND MANAGEMENT, LLC$120.3K16,2100.00%6qHELD
NORTHERN TRUST CORP$102.1K13,7630.00%6qHELD
WELLS FARGO & COMPANY/MN$86.0K11,5920.00%6q+98.6%+$42.7K
FMR LLC$75.7K10,2080.00%6q+4807.7%+$74.2K
MORGAN STANLEY$31.8K4,2850.00%6q-24.6%-$10.4K
Vanguard Global Advisers, LLC$12.9K1,7370.00%newFIRST
GROUP ONE TRADING LLC$7.4Koptions only0.00%3qOPTIONS
Caitong International Asset Management Co., Ltd$2.3K3080.00%newNEW
ROYAL BANK OF CANADA$2.0K3220.00%2q+187.5%+$1.3K
Tower Research Capital LLC (TRC)$1.9K2620.00%4q-53.5%-$2.2K
JPMORGAN CHASE & CO$8121090.00%6qHELD
BNP PARIBAS FINANCIAL MARKETS$660890.00%6qHELD
Allworth Financial LP$371500.00%2qHELD
UBS Group AG$96130.00%6q-67.5%
BARCLAYS PLC$710.00%6qHELD

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q1 202645$35.3M4,481,3119975.8%
Q4 202546$29.2M4,508,5991211153.0%
Q3 202540$16.6M4,239,8334980.4%
Q2 202540$20.5M4,474,80111080.0%
Q1 202543$21.2M4,328,24056130.3%
Q4 202444$28.3M4,201,00643010.3%
Q3 202460$31.7M39,100,657613220.0%
Q2 202479$23.6M39,387,1002215250.0%
Q1 202484$40.6M44,992,9321522280.0%
Q4 202382$47.3M49,689,5351425250.4%
Q3 202382$67.7M55,540,893633312.3%
Q2 2023104$142.8M56,937,832946322.3%
Q1 2023138$193.7M60,204,6603450382.7%
Q4 2022125$406.2M57,488,7031052400.4%
Q3 2022132$507.4M57,559,4522556302.3%
Q2 2022127$494.5M54,911,9553249338.2%
Q1 2022122$752.3M44,191,0852544392.4%
Q4 2021109$683.4M40,488,1283734201.1%
Q3 202177$243.8M28,072,4191028200.4%
Q2 202175$150.1M27,643,956526230.0%
Q1 202183$158.1M26,600,1371519310.1%
Q4 202075$123.0M23,552,624927230.1%
Q3 202077$112.2M23,177,380928260.0%
Q2 202084$120.2M23,193,4813525190.6%
Q1 202059$86.6M19,861,5291031150.0%
Q4 201955$37.3M9,302,899821160.0%
Q3 201954$30.9M9,426,487131990.0%
Q2 201953$77.2M10,011,6361423100.0%
Q1 201950$176.6M9,954,729152570.0%
Q4 201840$221.7M9,395,6670110.0%