Insider · CIK 0001135139

KHOSLA CHAITAN PHD

Reports to the SEC for 3 companies · MILPITAS, CA

sec.gov

Transactions

Companies

Filings

CIK

0001135139

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2024-06-11	GRDXGridAI Technologies Corp.A Award	Director	AAward	+24.9K sh	—	—	24,889
2024-03-13	GRDXGridAI Technologies Corp.A Award	Director	AAward	+440 sh	—	—	440
2024-03-13	GRDXGridAI Technologies Corp. · Series G Non-Voting Convertible Preferred StockA Award	Director	AAward	+140.7 sh	—	—	140.7
2024-03-13	GRDXGridAI Technologies Corp. · Stock Option (right to buy)A Award	Director	AAward	+53K sh	—	—	52,980
2020-08-11	PTGXProtagonist Therapeutics, IncS Sale	Director	SSale	−2,499 sh	$17.19	−$43K	0
2020-08-11	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−2,499 sh	—	—	7,499
2020-08-11	PTGXProtagonist Therapeutics, IncM Exercise/Conversion	Director	MExercise/Conversion	+2,499 sh	$1.89	+$4,723.11	2,499
2020-05-28	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+15K sh	—	—	15,000
2019-08-15	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+5,000 sh	—	—	5,000
2019-06-07	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+12K sh	—	—	12,000
2018-05-29	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+12K sh	—	—	12,000
2018-05-15	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+3,000 sh	—	—	3,000
2017-05-25	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+12K sh	—	—	12,000
2016-09-13	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+24K sh	—	—	24,000
2016-09-13	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+5,000 sh	—	—	5,000
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCU Disposition from Tender	Director	UDisposition from Tender	−116K sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCJ Other	Director	JOther	−1.35M sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−3,750 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−75K sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−10K sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−7,500 sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−10K sh	—	—	0
2008-06-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,000 sh	—	—	0
2007-05-25	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)A Award	Director	AAward	−5,000 sh	—	—	5,000
2006-05-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Option (right to buy)A Award	Director	AAward	+5,000 sh	—	—	5,000
2005-05-26	KOSAN BIOSCIENCES INCNon-Statutory Stock Options (right to buy)A Award	Director	AAward	+5,000 sh	$4.55	+$22.8K	5,000
2004-05-27	KOSAN BIOSCIENCES INCNon-Statutory Stock Options (right to buy)A Award	Director	AAward	+5,000 sh	$11.28	+$56.4K	5,000
2003-12-04	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.55	−$9,548	1,470,933
2003-12-03	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.70	−$9,699	1,471,933
2003-12-02	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.76	−$9,755	1,472,933
2003-12-01	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.79	−$9,787.1	1,473,933
2003-11-28	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.49	−$9,485.4	1,474,933
2003-11-26	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.50	−$9,500	1,475,933
2003-11-25	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.53	−$9,529.2	1,476,933
2003-11-24	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.43	−$9,430	1,477,933
2003-11-21	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.55	−$9,546	1,478,933
2003-11-20	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.53	−$9,532	1,479,933
2003-11-19	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.45	−$9,450	1,480,933
2003-11-18	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.54	−$9,539.7	1,481,933
2003-11-17	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.40	−$9,402.2	1,482,933
2003-11-14	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.58	−$9,580.2	1,483,933
2003-11-13	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.54	−$9,540	1,484,933
2003-11-12	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.48	−$9,480	1,485,933
2003-11-11	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.50	−$9,498	1,486,933
2003-11-10	KOSAN BIOSCIENCES INCS Sale	Director	SSale	−1,000 sh	$9.39	−$9,392	1,487,933

Recent filings

Accepted (ET)
Jun 124
KHOSLA CHAITAN PHD0001104659-24-070939
SEC(opens sec.gov)
Mar 154
KHOSLA CHAITAN PHD0001493152-24-010162
SEC(opens sec.gov)
Aug 124
KHOSLA CHAITAN PHD0001209191-20-046427
SEC(opens sec.gov)
May 294
KHOSLA CHAITAN PHD0001209191-20-033020
SEC(opens sec.gov)
Apr 84
KHOSLA CHAITAN PHD0001209191-20-023949
SEC(opens sec.gov)
Jun 114
KHOSLA CHAITAN PHD0001209191-19-036203
SEC(opens sec.gov)
Apr 24
KHOSLA CHAITAN PHD0001209191-19-022776
SEC(opens sec.gov)
Jun 124
KHOSLA CHAITAN PHD0001209191-18-037310
SEC(opens sec.gov)
May 264
Protagonist Therapeutics, Inc0001209191-17-035964
SEC(opens sec.gov)
Sep 284/A
Protagonist Therapeutics, Inc0001209191-16-143095
SEC(opens sec.gov)
Sep 154
Protagonist Therapeutics, Inc0001209191-16-141587
SEC(opens sec.gov)
Jun 274
KHOSLA CHAITAN PHD0001181431-08-040746
SEC(opens sec.gov)

Companies

Address

C/O PROTAGONIST THERAPEUTICS, INC. 521 COTTONWOOD DRIVE, SUITE 100

MILPITAS, CA, 95035