Kezar Life Sciences Ownership | Who Owns Kezar Life Sciences?

Kezar Life Sciences Ownership Summary

Kezar Life Sciences is owned by 58.29% institutional investors, 15.78% insiders, and 25.93% retail investors. Bml capital management is the largest institutional shareholder, holding 9.85% of KZR shares. International Biotechnology Ord is the top mutual fund, with 4.80% of its assets in Kezar Life Sciences shares.

KZR Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Kezar Life Sciences	58.29%	15.78%	25.93%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Biotech Stocks	35.80%	11.85%	52.35%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Bml capital management	720.79K	9.85%	$5.35M
Suvretta capital management	716.76K	9.80%	$5.32M
Tang capital management	664.31K	9.08%	$4.93M
Vanguard group	341.40K	4.66%	$2.15M
Rangeley capital	243.07K	3.32%	$1.80M
Affinity asset advisors	229.08K	3.13%	$1.70M
Orbimed advisors	192.70K	2.64%	$751.53K
Renaissance	188.43K	2.58%	$1.40M
Acadian asset management	151.63K	2.07%	$1.12M
Millennium management	142.05K	1.94%	$1.05M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bml capital management	720.79K	3.43%	$5.35M
Rangeley capital	243.07K	1.75%	$1.80M
Peapod lane capital	126.69K	0.76%	$924.52K
Qiming u.s. ventures management	82.87K	0.58%	$323.20K
Aldebaran capital	80.33K	0.46%	$596.09K
Vazirani asset management	22.00K	0.38%	$163.24K
Tang capital management	664.31K	0.25%	$4.93M
Suvretta capital management	716.76K	0.14%	$5.32M
Affinity asset advisors	229.08K	0.09%	$1.70M
Equitec proprietary markets	19.50K	0.08%	$144.69K

Top Buyers

Holder	Shares	% Assets	Change
Rangeley capital	243.07K	1.75%	157.15K
Millennium management	142.05K	0.00%	142.05K
Vanguard group	341.40K	-	73.24K
Bank of america corp /de/	105.39K	-	72.14K
Citadel advisors	59.40K	0.00%	59.40K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	830.37K	-	-3.79M
Acuitas investments	-	-	-1.23M
Avidity partners management lp	-	-	-502.60K
Schroder investment management group	-	-	-350.39K
Nuveen asset management	-	-	-314.76K

New Positions

Holder	Shares	% Assets	Change	Value
Millennium management	142.05K	0.00%	142.05K	$1.05M
Mackenzie financial	58.71K	0.00%	58.71K	$35.23K
Credit industriel et commercial	53.60K	0.03%	53.60K	$397.71K
Vanguard fiduciary trust	41.20K	0.00%	41.20K	$305.71K
Yakira capital management	24.00K	0.05%	24.00K	$178.08K

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-13.00
Nisa investment advisors	-50.00
Citigroup	-51.00
Advisor group	-94.00
Simplex trading	-400.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	44	-	4,264,703	-4.39%	58	1.57%	20	-9.09%	8	-52.94%
Dec 31, 2025	14	-64.10%	1,557,500	-62.97%	21	0.64%	7	-46.15%	4	-42.86%
Sep 30, 2025	11	-70.27%	1,385,694	-68.97%	18	0.51%	5	-58.33%	2	-75.00%
Jun 30, 2025	38	-7.32%	4,475,078	3.39%	61	1.74%	13	-	8	-46.67%
Mar 31, 2025	4	-90.91%	478,385	-88.55%	6	19.94%	-	-100.00%	1	-96.97%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
International Biotechnology Ord	350.39K	4.80%	-
Vanguard Total Stock Mkt Idx Inv	223.23K	3.03%	-
Biotech Growth Ord	192.70K	2.63%	-
M&G (ACS) Granahan US Sm Cp Gr GBPZ1AAcc	693.06K	0.95%	-100.25K
Vanguard Institutional Extnd Mkt Idx Tr	67.30K	0.91%	-
Bridgeway Ultra-Small Company	51.64K	0.71%	10.64K
Vifag 2002 SICAV	45.00K	0.62%	-
NT Ext Equity Mkt Idx Fd - DC - NL - T2	33.98K	0.47%	104.00
Fidelity Nasdaq Composite Index	32.48K	0.45%	-
Spartan Total Market Index Pool E	28.74K	0.39%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jul 02, 2025	Chiang Pichi Luo	SVP, Corporate Controller	Sell	$1.13K
Jul 02, 2025	Schiller Mark C.	Chief Operating Officer	Sell	$2.40K
Jul 02, 2024	Schiller Mark C.	Chief Legal Officer	Sell	$3.88K
Feb 06, 2023	Morningside Venture Investments Ltd	-	Sell	$275.32K
Feb 03, 2023	Morningside Venture Investments Ltd	-	Sell	$178.65K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2025 Q3	-	2
2025 Q2	-	-
2025 Q1	-	-
2024 Q3	-	1

KZR Ownership FAQ

Who Owns Kezar Life Sciences?

Kezar Life Sciences shareholders are primarily institutional investors at 58.29%, followed by 15.78% insiders and 25.93% retail investors. The average institutional ownership in Kezar Life Sciences's industry, Biotech Stocks , is 35.80%, which Kezar Life Sciences exceeds.

Who owns the most shares of Kezar Life Sciences?

Kezar Life Sciences’s largest shareholders are Bml capital management (720.79K shares, 9.85%), Suvretta capital management (716.76K shares, 9.80%), and Tang capital management (664.31K shares, 9.08%). Together, they hold 28.73% of Kezar Life Sciences’s total shares outstanding.

Does Blackrock own Kezar Life Sciences?

BlackRock is not among the top 10 institutional shareholders of Kezar Life Sciences.

Who is Kezar Life Sciences’s biggest shareholder by percentage of total assets invested?

Bml capital management is Kezar Life Sciences’s biggest shareholder by percentage of total assets invested, with 3.43% of its assets in 720.79K Kezar Life Sciences shares, valued at 5.35M$.

Who is the top mutual fund holder of Kezar Life Sciences shares?

International Biotechnology Ord is the top mutual fund holder of Kezar Life Sciences shares, with 4.80% of its total shares outstanding invested in 350.39K Kezar Life Sciences shares.

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