Insider · CIK 0001413823

CHAI CHRISTOPHER Y

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

sec.gov

Transactions

Companies

Filings

CIK

0001413823

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-05-13	SRZNSurrozen, Inc./DE · Director Stock Option (right to buy)A Award	Director	AAward	+5,550 sh	—	—	5,550
2025-05-14	SRZNSurrozen, Inc./DE · Option (right to buy)A Award	Director	AAward	+1,333 sh	—	—	1,333
2024-06-05	SRZNSurrozen, Inc./DE · Option (right to buy)A Award	Director	AAward	+1,333 sh	—	—	1,333
2023-05-18	SRZNSurrozen, Inc./DE · Option (right to buy)A Award	Director	AAward	+20K sh	—	—	20,000
2022-06-07	SRZNSurrozen, Inc./DE · Option (right to buy)A Award	Director	AAward	+20K sh	—	—	20,000
2020-09-28	Principia Biopharma Inc.U Disposition from Tender	Chief Financial Officer	UDisposition from Tender	−3,302 sh	$100.00	−$330K	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−57K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−24.8K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−29.7K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−34.7K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−13.2K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−55K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−60K sh	—	—	0
2020-09-28	Principia Biopharma Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Chief Financial Officer	DDisposition to Issuer	−44K sh	—	—	0
2020-09-28	Principia Biopharma Inc.U Disposition from Tender	Chief Financial Officer	UDisposition from Tender	−3,799 sh	$100.00	−$380K	0
2020-08-18	Principia Biopharma Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−7,500 sh	—	—	56,982
2020-08-18	Principia Biopharma Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+7,500 sh	$3.00	+$22.5K	11,039
2020-08-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−7,500 sh	$99.37	−$745K	3,539
2020-05-19	Principia Biopharma Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+5,675 sh	$3.00	+$17K	11,039
2020-05-19	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−7,500 sh	$65.10	−$488K	3,539
2020-05-19	Principia Biopharma Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−5,675 sh	—	—	64,482
2020-03-05	Principia Biopharma Inc.Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+55K sh	—	—	55,000
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−1,350 sh	$65.94	−$89K	7,687
2020-02-18	Principia Biopharma Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+2,500 sh	$3.00	+$7,494.25	12,266
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−2,684 sh	$63.86	−$171K	9,582
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−545 sh	$64.91	−$35.4K	9,037
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−605 sh	$67.08	−$40.6K	7,082
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−2,240 sh	$68.13	−$153K	4,842
2020-02-18	Principia Biopharma Inc.S Sale	Chief Financial Officer	SSale	−76 sh	$68.52	−$5,207.657	4,766
2020-02-18	Principia Biopharma Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−2,500 sh	—	—	70,157
2019-03-01	Principia Biopharma Inc.Employee Stock Option (right to buy)A Award	Chief Financial Officer	AAward	+60K sh	—	—	60,000
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−55K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Restricted Stock Unit (RSU)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−4,500 sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Restricted Stock Unit (RSU)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−8,250 sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−32.5K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−27.5K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.U Disposition from Tender	SVP, Chief Financial Officer	UDisposition from Tender	−14.2K sh	$25.00	−$356K	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−23.1K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−11.3K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−47.3K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−75K sh	—	—	0
2013-03-01	MAP Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	SVP, Chief Financial Officer	DDisposition to Issuer	−60K sh	—	—	0
2013-01-26	MAP Pharmaceuticals, Inc.F Tax Payment	SVP, Chief Financial Officer	FTax Payment	−873 sh	$24.75	−$21.6K	13,899
2013-01-26	MAP Pharmaceuticals, Inc.M Exercise/Conversion	SVP, Chief Financial Officer	MExercise/Conversion	+2,250 sh	—	—	14,772
2013-01-26	MAP Pharmaceuticals, Inc.Restricted Stock Unit (RSU)M Exercise/Conversion	SVP, Chief Financial Officer	MExercise/Conversion	−2,250 sh	—	—	4,500
2013-01-25	MAP Pharmaceuticals, Inc.Restricted Stock Unit (RSU)M Exercise/Conversion	SVP, Chief Financial Officer	MExercise/Conversion	−2,750 sh	—	—	8,250
2013-01-25	MAP Pharmaceuticals, Inc.M Exercise/Conversion	SVP, Chief Financial Officer	MExercise/Conversion	+2,750 sh	—	—	13,729
2013-01-25	MAP Pharmaceuticals, Inc.F Tax Payment	SVP, Chief Financial Officer	FTax Payment	−1,207 sh	$24.75	−$29.9K	12,522
2012-11-20	MAP Pharmaceuticals, Inc.J Other	SVP, Chief Financial Officer	JOther	+556 sh	$9.89	+$5,501.064	10,979
2012-05-20	MAP Pharmaceuticals, Inc.J Other	SVP, Chief Financial Officer	JOther	+553 sh	$9.81	+$5,424.377	10,423

Recent filings

Accepted (ET)
May 144
CHAI CHRISTOPHER Y0001193125-26-224145
SEC(opens sec.gov)
May 154
CHAI CHRISTOPHER Y0001593968-25-000612
SEC(opens sec.gov)
Jun 64
CHAI CHRISTOPHER Y0001593968-24-000828
SEC(opens sec.gov)
May 194
CHAI CHRISTOPHER Y0001593968-23-000839
SEC(opens sec.gov)
Jun 94
CHAI CHRISTOPHER Y0001593968-22-001113
SEC(opens sec.gov)
Sep 284
CHAI CHRISTOPHER Y0001209191-20-052224
SEC(opens sec.gov)
Aug 204
CHAI CHRISTOPHER Y0001209191-20-047832
SEC(opens sec.gov)
May 214
CHAI CHRISTOPHER Y0001209191-20-031531
SEC(opens sec.gov)

Companies

Address

C/O SURROZEN, INC. 171 OYSTER POINT BLVD., SUITE 400

SOUTH SAN FRANCISCO, CA, 94080