Insider · CIK 0001793200

Lee Sung

Reports to the SEC for 4 companies · SOUTH SAN FRANCISCO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001793200

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-07-01	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+1,112 sh	$48.51	+$53.9K	64,333
2026-07-01	CYTKCYTOKINETICS INCS Sale	EVP, Chief Financial Officer	SSale	−1,112 sh	$87.79	−$97.6K	63,221
2026-07-01	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−1,112 sh	—	—	26,709
2026-06-29	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+188 sh	$44.36	+$8,339.68	63,409
2026-06-29	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+822 sh	$44.36	+$36.5K	64,231
2026-06-29	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+1,113 sh	$48.51	+$54K	65,344
2026-06-29	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+188 sh	$44.36	+$8,339.68	65,532
2026-06-29	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+823 sh	$44.36	+$36.5K	66,355
2026-06-29	CYTKCYTOKINETICS INCS Sale	EVP, Chief Financial Officer	SSale	−3,134 sh	$85.00	−$266K	63,221
2026-06-29	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−188 sh	—	—	8,828
2026-06-29	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−822 sh	—	—	40,504
2026-06-29	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−1,113 sh	—	—	52,304
2026-06-29	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−188 sh	—	—	8,640
2026-06-29	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−823 sh	—	—	39,681
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+23.4K sh	$48.51	+$1.13M	86,591
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+9,307 sh	$44.36	+$413K	95,898
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+2,817 sh	$44.36	+$125K	98,715
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+1,113 sh	$48.51	+$54K	99,828
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+188 sh	$44.36	+$8,339.68	100,016
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+822 sh	$44.36	+$36.5K	100,838
2026-06-24	CYTKCYTOKINETICS INCM Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	+1,113 sh	$48.51	+$54K	101,951
2026-06-24	CYTKCYTOKINETICS INCS Sale	EVP, Chief Financial Officer	SSale	−38.7K sh	$82.30	−$3.19M	63,221
2026-06-24	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−23.4K sh	—	—	30,047
2026-06-24	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−9,307 sh	—	—	32,019
2026-06-24	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−2,817 sh	—	—	6,199
2026-06-24	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−1,113 sh	—	—	28,934
2026-06-24	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−188 sh	—	—	6,011
2026-06-24	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−822 sh	—	—	31,197
2026-06-24	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)M Exercise/Conversion	EVP, Chief Financial Officer	MExercise/Conversion	−1,113 sh	—	—	27,821
2026-06-05	TNGXTango Therapeutics, Inc.A Award	Director	AAward	+570 sh	—	—	22,870
2026-06-05	TNGXTango Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+3,570 sh	—	—	3,570
2026-05-05	CYTKCYTOKINETICS INCS Sale	EVP, Chief Financial Officer	SSale	−23.9K sh	$76.87	−$1.84M	63,221
2026-04-29	TNGXTango Therapeutics, Inc.A Award	Director	AAward	+12.3K sh	—	—	22,300
2026-04-29	TNGXTango Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+5,200 sh	—	—	5,200
2026-03-17	CYTKCYTOKINETICS INCS Sale	EVP, Chief Financial Officer	SSale	−4,935 sh	$62.15	−$307K	87,127
2026-03-15	CYTKCYTOKINETICS INCA Award	EVP, Chief Financial Officer	AAward	+20.6K sh	—	—	92,062
2026-03-15	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)A Award	EVP, Chief Financial Officer	AAward	+1,665 sh	—	—	1,665
2026-03-15	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)A Award	EVP, Chief Financial Officer	AAward	+29.5K sh	—	—	29,480
2026-01-02	TNGXTango Therapeutics, Inc.A Award	Director	AAward	+10K sh	—	—	10,000
2026-01-02	TNGXTango Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+60K sh	—	—	60,000
2025-12-22	CYTKCYTOKINETICS INCA Award	EVP, Chief Financial Officer	AAward	+2,152 sh	—	—	70,069
2025-12-22	CYTKCYTOKINETICS INCA Award	EVP, Chief Financial Officer	AAward	+2,152 sh	—	—	72,221
2025-12-22	CYTKCYTOKINETICS INCF Tax Payment	EVP, Chief Financial Officer	FTax Payment	−805 sh	$62.72	−$50.5K	71,416
2025-12-03	CYTKCYTOKINETICS INCF Tax Payment	EVP, Chief Financial Officer	FTax Payment	−1,560 sh	$65.02	−$101K	67,917
2025-06-02	CYTKCYTOKINETICS INCF Tax Payment	EVP, Chief Financial Officer	FTax Payment	−4,965 sh	$31.21	−$155K	69,477
2025-03-14	CYTKCYTOKINETICS INCA Award	EVP, Chief Financial Officer	AAward	+32.7K sh	—	—	74,442
2025-03-14	CYTKCYTOKINETICS INC · Incentive Stock Option (Right to Buy)A Award	EVP, Chief Financial Officer	AAward	+9,016 sh	—	—	9,016
2025-03-14	CYTKCYTOKINETICS INC · Non-Qualified Stock Option (Right to Buy)A Award	EVP, Chief Financial Officer	AAward	+41.3K sh	—	—	41,326
2024-12-03	CYTKCYTOKINETICS INCA Award	EVP, Chief Financial Officer	AAward	+4,303 sh	—	—	38,987
2024-12-03	CYTKCYTOKINETICS INCF Tax Payment	EVP, Chief Financial Officer	FTax Payment	−1,536 sh	$51.51	−$79.1K	37,451

Recent filings

Accepted (ET)
Jul 24
Lee Sung0001061983-26-000072
SEC(opens sec.gov)
Jun 294
Lee Sung0001061983-26-000071
SEC(opens sec.gov)
Jun 294
Lee Sung0001061983-26-000070
SEC(opens sec.gov)

Companies

Address

350 OYSTER POINT BLVD

SOUTH SAN FRANCISCO, CA, 94080