Insider · CIK 0001455228

Casdin Alexander W.

Reports to the SEC for 4 companies · SAN DIEGO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001455228

Forms 4 and 5

Insider transactions

44 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-26	ERASErasca, Inc. · Stock option (right to buy)A Award	Director	AAward	+29.9K sh	—	—	29,888
2026-01-01	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+23.9K sh	—	—	23,872
2025-06-24	ERASErasca, Inc. · Stock option (right to buy)A Award	Director	AAward	+120K sh	—	—	120,000
2025-01-01	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+28.9K sh	—	—	28,877
2024-06-20	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+60K sh	—	—	60,000
2024-05-21	ERASErasca, Inc.P Purchase	Director	PPurchase	+80K sh	$2.27	+$182K	573,974
2024-01-01	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+41.1K sh	—	—	41,084
2023-12-04	ERASErasca, Inc.P Purchase	Director	PPurchase	+30K sh	$1.66	+$49.8K	493,974
2023-06-22	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+60K sh	—	—	60,000
2023-06-15	PROJECT SAGE OLDCO, INC.A Award	Director	AAward	+15K sh	—	—	252,099
2023-04-10	ERASErasca, Inc.P Purchase	Director	PPurchase	+20K sh	$2.76	+$55.2K	463,974
2022-12-15	ERASErasca, Inc.P Purchase	Director	PPurchase	+20K sh	$4.87	+$97.5K	443,974
2022-07-01	ERASErasca, Inc.J Other	Director	JOther	−750K sh	—	—	0
2022-06-22	ERASErasca, Inc. · Stock Option (right to buy)A Award	Director	AAward	+40K sh	—	—	40,000
2021-07-20	ERASErasca, Inc.C Conversion	Director	CConversion	+750K sh	—	—	750,000
2021-07-20	ERASErasca, Inc.C Conversion	Director	CConversion	+150K sh	—	—	337,500
2021-07-20	ERASErasca, Inc. · Series A Preferred StockC Conversion	Director	CConversion	−180K sh	—	—	0
2021-07-20	ERASErasca, Inc. · Series A Preferred StockC Conversion	Director	CConversion	−900K sh	—	—	0
2018-02-08	Ignyta, Inc.D Disposition to Issuer	Director	DDisposition to Issuer	−100K sh	$27.00	−$2.7M	0
2018-02-08	Ignyta, Inc.D Disposition to Issuer	Director	DDisposition to Issuer	−706K sh	$27.00	−$19.1M	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−20K sh	—	—	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−24K sh	—	—	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−10K sh	—	—	0
2018-02-08	Ignyta, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−6,666 sh	—	—	0
2017-06-13	Ignyta, Inc.Stock Option (Right to Buy)A Award	Director	AAward	+20K sh	—	—	20,000
2016-06-13	Ignyta, Inc.Stock Option (Right to Buy)A Award	Director	AAward	+15K sh	—	—	15,000
2016-05-04	Ignyta, Inc.P Purchase	Director	PPurchase	+232K sh	$6.25	+$1.45M	706,464
2016-03-10	Ignyta, Inc.Stock Option (Right to Buy)A Award	Director	AAward	+15K sh	—	—	15,000
2015-06-16	Ignyta, Inc.P Purchase	Director	PPurchase	+65.7K sh	$17.50	+$1.15M	474,464
2015-03-17	Ignyta, Inc.P Purchase	Director	PPurchase	+409K sh	$10.00	+$4.09M	408,750
2012-12-20	DUSA PHARMACEUTICALS INCNon-qualified Stock OptionsD Disposition to Issuer	Director	DDisposition to Issuer	−10K sh	—	—	0
2012-12-20	DUSA PHARMACEUTICALS INCU Disposition from Tender	Director	UDisposition from Tender	−206K sh	$8.00	−$1.65M	0
2012-12-20	DUSA PHARMACEUTICALS INCU Disposition from Tender	Director	UDisposition from Tender	−10K sh	$8.00	−$80K	0
2012-12-20	DUSA PHARMACEUTICALS INCNon-qualified Stock OptionsD Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2012-12-20	DUSA PHARMACEUTICALS INCNon-qualified Stock OptionsD Disposition to Issuer	Director	DDisposition to Issuer	−10K sh	—	—	0
2012-06-30	DUSA PHARMACEUTICALS INCA Award	Director	AAward	+8,000 sh	—	—	216,000
2011-06-30	DUSA PHARMACEUTICALS INCA Award	Director	AAward	+8,000 sh	—	—	208,000
2010-06-30	DUSA PHARMACEUTICALS INCNon-Qualified Stock OptionA Award	Director	AAward	+10K sh	—	—	10,000
2009-06-30	DUSA PHARMACEUTICALS INCNon-Qualified Stock OptionA Award	Director	AAward	+10K sh	—	—	10,000
2009-05-18	DUSA PHARMACEUTICALS INCA Award	Director	AAward	+100K sh	$1.40	+$140K	200,000
2009-05-18	DUSA PHARMACEUTICALS INCA Award	Director	AAward	+100K sh	$1.40	+$140K	100,000
2009-02-27	DUSA PHARMACEUTICALS INCOption to Purchase Common StockA Award	Director	AAward	+15K sh	—	—	15,000

Recent filings

Accepted (ET)
Jun 294
Casdin Alexander W.0001193125-26-288905
SEC(opens sec.gov)
Jan 54
Casdin Alexander W.0001193125-26-001606
SEC(opens sec.gov)
Jun 264
Casdin Alexander W.0000950170-25-090415
SEC(opens sec.gov)
Jan 24
Casdin Alexander W.0000950170-25-000639
SEC(opens sec.gov)
Jun 214
Casdin Alexander W.0001209191-24-005921
SEC(opens sec.gov)
May 224
Casdin Alexander W.0001209191-24-005689
SEC(opens sec.gov)
Jan 34
Casdin Alexander W.0001209191-24-000268
SEC(opens sec.gov)
Dec 44
Casdin Alexander W.0001209191-23-057297
SEC(opens sec.gov)
Jun 264
Casdin Alexander W.0001209191-23-039583
SEC(opens sec.gov)
Jun 204
Casdin Alexander W.0001209191-23-038640
SEC(opens sec.gov)
Apr 114
Casdin Alexander W.0001209191-23-023955
SEC(opens sec.gov)
Dec 154
Casdin Alexander W.0001209191-22-061461
SEC(opens sec.gov)
Jul 64
Casdin Alexander W.0001209191-22-041388
SEC(opens sec.gov)
Jun 244
Casdin Alexander W.0001209191-22-039102
SEC(opens sec.gov)
Jul 204
Casdin Alexander W.0000899243-21-029082
SEC(opens sec.gov)
Feb 124
Casdin Alexander W.0001209191-18-009138
SEC(opens sec.gov)

Companies

Address

C/O ERASCA, INC. 3115 MERRYFIELD ROW, SUITE 300

SAN DIEGO, CA, 92121