Insider · CIK 0001382629

Belsky Marc

Reports to the SEC for 3 companies · SOUTH SAN FRANCISCO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001382629

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−14K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−22K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−19.5K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc.U Disposition from Tender	Chief Financial Officer	UDisposition from Tender	−1,538 sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc.U Disposition from Tender	Chief Financial Officer	UDisposition from Tender	−200 sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−17.8K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−29.5K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−24.5K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−12K sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−5,999 sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−5,999 sh	—	—	0
2026-05-11	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−8,999 sh	—	—	0
2025-03-27	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+4,800 sh	—	—	12,000
2025-03-04	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+7,200 sh	—	—	7,200
2025-01-09	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+24.5K sh	—	—	24,500
2024-01-07	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+295K sh	—	—	295,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+220K sh	—	—	220,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−220K sh	—	—	0
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+90K sh	—	—	90,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−90K sh	—	—	0
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+60K sh	—	—	60,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−60K sh	—	—	0
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+60K sh	—	—	60,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−60K sh	—	—	0
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−140K sh	—	—	0
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+195K sh	—	—	195,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+140K sh	—	—	140,000
2023-07-24	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−195K sh	—	—	0
2023-01-08	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+195K sh	—	—	195,000
2022-01-05	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+140K sh	—	—	140,000
2021-01-08	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+220K sh	—	—	220,000
2020-02-04	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+15.4K sh	$2.60	+$40K	15,384
2020-01-12	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+90K sh	—	—	90,000
2019-11-13	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+800 sh	$2.76	+$2,207.04	2,000
2019-09-06	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+60K sh	—	—	60,000
2019-08-20	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+200 sh	$4.42	+$884	1,200
2019-08-09	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+500 sh	$4.82	+$2,410	1,000
2019-07-26	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+56 sh	$5.80	+$324.8	500
2019-07-25	KZRKezar Life Sciences, Inc.P Purchase	Chief Financial Officer	PPurchase	+444 sh	$5.65	+$2,510.376	444
2019-01-06	KZRKezar Life Sciences, Inc. · Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+60K sh	—	—	60,000
2018-02-26	FIVE PRIME THERAPEUTICS, INC.Employee Stock Option (right to buy)A Award	Senior Vice President and CFO	AAward	+18K sh	—	—	18,000
2018-02-26	FIVE PRIME THERAPEUTICS, INC.A Award	Senior Vice President and CFO	AAward	+3,000 sh	—	—	16,314
2018-02-05	FIVE PRIME THERAPEUTICS, INC.F Tax Payment	Senior Vice President and CFO	FTax Payment	−1,048 sh	$18.42	−$19.3K	13,314
2017-09-01	FIVE PRIME THERAPEUTICS, INC.F Tax Payment	Senior Vice President and CFO	FTax Payment	−921 sh	$34.34	−$31.6K	16,982
2017-03-01	FIVE PRIME THERAPEUTICS, INC.F Tax Payment	Senior Vice President and CFO	FTax Payment	−18.9K sh	$44.77	−$845K	46,785
2017-02-07	FIVE PRIME THERAPEUTICS, INC.A Award	Senior Vice President and CFO	AAward	+5,625 sh	—	—	5,625
2017-02-07	FIVE PRIME THERAPEUTICS, INC.A Award	Senior Vice President and CFO	AAward	+7,031 sh	—	—	12,656
2017-02-07	FIVE PRIME THERAPEUTICS, INC.Employee Stock Option (right to buy)A Award	Senior Vice President and CFO	AAward	+22.5K sh	—	—	22,500
2017-01-03	FIVE PRIME THERAPEUTICS, INC.F Tax Payment	Senior Vice President and CFO	FTax Payment	−2,281 sh	$48.60	−$111K	65,666
2016-09-01	FIVE PRIME THERAPEUTICS, INC.F Tax Payment	Senior Vice President and CFO	FTax Payment	+18K sh	$44.74	+$804K	67,947

Recent filings

Accepted (ET)
May 114
Belsky Marc0001382629-26-000003
SEC(opens sec.gov)
Apr 14
Belsky Marc0001415889-25-009475
SEC(opens sec.gov)
Mar 54
Belsky Marc0001415889-25-007113
SEC(opens sec.gov)
Jan 134
Belsky Marc0001415889-25-001367
SEC(opens sec.gov)
Jan 94
Belsky Marc0001209191-24-001254
SEC(opens sec.gov)
Jul 264
Belsky Marc0001209191-23-043421
SEC(opens sec.gov)

Companies

Address

C/O KEZAR LIFE SCIENCES, INC. 4000 SHORELINE COURT, SUITE 300

SOUTH SAN FRANCISCO, CA, 94080