Kezar Life Sciences, Inc. (KZR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

3,004,421Shares held by institutions

$22,232,715Value of institutional holdings

61.09%Institutional ownership %

5.56%Shares Changed QoQ

40No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Kezar Life Sciences, Inc. (NASDAQ:KZR) has 43 institutional investors with active 13F positions as of December 2025.

These investors collectively held 62.9% of Kezar Life Sciences's outstanding shares in December 2025, up from 57.4% in September 2025.
They increased total shares held in KZR by 19.79% quarter over quarter, and investors in Kezar Life Sciences decreased 4.44% from a year ago.
Of these 43 funds, 22 grew their exposure to Kezar Life Sciences, 16 cut back, and 5 maintained positions.
The aggregate institutional position in Kezar Life Sciences amounted to 4.61Mn shares as of December 2025, up by 760.84K shares quarter on quarter, and up 380.64K shares year over year.
BML Capital Management, LLC holds the largest position in KZR at 720.79K shares as of December 31, 2025, or 9.84% of shares outstanding.
The largest buyers of Kezar Life Sciences for the quarter ending December 2025 were 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).
Top sellers of KZR stock 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, the top 10 investors in KZR for the quarter ending December 2025 include 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

3,004,421 Total Shares Held

Rows:

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Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	581	0.59%	$0.00
SUVRETTA CAPITAL MANAGEMENT, LLC	31 Dec, 2025	0	0.00%	$0.00
BML Capital Management, LLC	31 Dec, 2025	0	0.00%	$0.00
Barclays Plc	31 Dec, 2025	0	0.00%	$0.00
TANG CAPITAL MANAGEMENT LLC	31 Dec, 2025	-55,686	-7.73%	$0.00
ADAR1 Capital Management, LLC	31 Dec, 2025	109,913	87.95%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	73,238	27.31%	$0.00
Affinity Asset Advisors, LLC	31 Dec, 2025	229,076	0.00%	$0.00
Nantahala Capital Management, LLC	31 Dec, 2025	276,754	0.00%	$0.00
Peapod Lane Capital LLC	31 Dec, 2025	926	0.74%	$0.00
Stonepine Capital Management, LLC	31 Dec, 2025	-227,003	-59.24%	$0.00
Ikarian Capital, LLC	31 Dec, 2025	-4,690	-4.39%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	15,400	13.29%	$0.00
FNY Investment Advisers, LLC	31 Dec, 2025	50,000	0.00%	$0.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	-8,154	-6.11%	$0.00
Vazirani Asset Management LLC	31 Dec, 2025	48,428	0.00%	$0.00
Rangeley Capital, LLC	31 Dec, 2025	85,926	0.00%	$0.00
Shay Capital LLC	31 Dec, 2025	-33,962	-50.19%	$0.00
Aldebaran Capital, LLC	31 Dec, 2025	80,630	0.00%	$0.00
TORNO CAPITAL, LLC	31 Dec, 2025	20,000	0.00%	$0.00

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