Kezar Life Sciences, Inc. (KZR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

7,323,106Shares Outstanding

4,606,039Shares held by institutions

$33,946,507Value of institutional holdings

62.90%Institutional ownership %

19.79%Shares Changed QoQ

43No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Kezar Life Sciences, Inc. (NASDAQ:KZR) showed up in the 13F filings of 43 institutional investors as of December 2025.

They owned 62.9% of outstanding stock in December 2025, up from 57.4% the prior quarter.
They increased total shares held in Kezar Life Sciences by 19.79% from the prior quarter, while the number of investors in KZR decreased 4.44% year over year.
During the quarter, 22 of these 43 funds increased positions in KZR, 16 reduced exposure, and 5 held steady.
Institutional investors collectively held 4.61Mn shares in Kezar Life Sciences as of December 2025, up by 760.84K shares quarter on quarter, and up 380.64K shares year over year.
BML Capital Management, LLC leads ownership in KZR with 720.79K shares as of December 31, 2025, equal to 9.84% of outstanding shares.
Top purchasers of KZR stock for the quarter ending December 2025 included Nantahala Capital Management, LLC (276.75K), Affinity Asset Advisors, LLC (229.08K), ADAR1 Capital Management, LLC (109.91K), Rangeley Capital, LLC (85.93K), Aldebaran Capital, LLC (80.63K).
The biggest sellers of Kezar Life Sciences for the quarter ending December 2025 included Stonepine Capital Management, LLC (227.0K), TANG CAPITAL MANAGEMENT LLC (55.69K), Shay Capital LLC (33.96K), TWO SIGMA INVESTMENTS, LP (12.37K), FMR LLC (8.52K).
Per Business Quant data, the top 10 holders of Kezar Life Sciences for the quarter ending December 2025 are BML Capital Management, LLC (720.79K), SUVRETTA CAPITAL MANAGEMENT, LLC (716.76K), TANG CAPITAL MANAGEMENT LLC (664.31K), VANGUARD GROUP INC (341.4K), Nantahala Capital Management, LLC (276.75K), ADAR1 Capital Management, LLC (234.88K), Affinity Asset Advisors, LLC (229.08K), Stonepine Capital Management, LLC (156.18K), RENAISSANCE TECHNOLOGIES LLC (131.28K), Peapod Lane Capital LLC (126.7K).

43 Institutional Holders

4,606,039 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BML Capital Management, LLC	31 Dec, 2025	720,787	0	0.00%	$4,533,750.00
SUVRETTA CAPITAL MANAGEMENT, LLC	31 Dec, 2025	716,759	0	0.00%	$4,508,414.00
TANG CAPITAL MANAGEMENT LLC	31 Dec, 2025	664,314	-55,686	-7.73%	$4,178,535.00
VANGUARD GROUP INC	31 Dec, 2025	341,404	73,238	27.31%	$2,147,431.00
Nantahala Capital Management, LLC	31 Dec, 2025	276,754	276,754	0.00%	$1,740,783.00
ADAR1 Capital Management, LLC	31 Dec, 2025	234,880	109,913	87.95%	$1,477,396.00
Affinity Asset Advisors, LLC	31 Dec, 2025	229,076	229,076	0.00%	$1,440,888.00
Stonepine Capital Management, LLC	31 Dec, 2025	156,179	-227,003	-59.24%	$982,366.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	131,285	15,400	13.29%	$825,783.00
Peapod Lane Capital LLC	31 Dec, 2025	126,699	926	0.74%	$796,937.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	125,371	-8,154	-6.11%	$787.00
Ikarian Capital, LLC	31 Dec, 2025	102,211	-4,690	-4.39%	$642,907.00
BlackRock, Inc.	31 Dec, 2025	98,684	581	0.59%	$620,722.00
Rangeley Capital, LLC	31 Dec, 2025	85,926	85,926	0.00%	$540,475.00
Aldebaran Capital, LLC	31 Dec, 2025	80,630	80,630	0.00%	$507,163.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	68,167	2,665	4.07%	$428,860.00
RBF Capital, LLC	31 Dec, 2025	56,288	28,035	99.23%	$354,052.00
PRELUDE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	52,929	52,929	0.00%	$332,923.00
BRIDGEWAY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	51,638	10,638	25.95%	$324,803.00
FNY Investment Advisers, LLC	31 Dec, 2025	50,000	50,000	0.00%	$314.00

1 - 20 of 43

Research Tools