Casdin Alexander W.

Director at PROJECT SAGE OLDCO, INC. · on record since Jun 20, 2023
Director at DUSA PHARMACEUTICALS INC · on record since Mar 3, 2009
Director at Ignyta, Inc. · on record since Mar 13, 2014
Director at Erasca, Inc. · on record since Jul 20, 2021

Insider trading activity of Casdin Alexander W.

Transactions on record: 44; since Mar 3, 2009

Open-market buys: 7; $7.1M

Open-market sells: 0

Companies traded: 4; last filing Jun 29, 2026

Figures computed from official regulatory filings — .

Companies where Casdin Alexander W. has traded

Erasca, Inc.17 tx · $384K · Jun 29, 2026
PROJECT SAGE OLDCO, INC.1 tx · Jun 20, 2023
Ignyta, Inc.14 tx · $28.5M · Feb 12, 2018
DUSA PHARMACEUTICALS INC12 tx · $2M · Dec 20, 2012

Track record of Casdin Alexander W.

Statistical track record

Free account

Open-market buys: 7

Last buy: May 21, 2024

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of Casdin Alexander W.

Co-insiders of Casdin Alexander W.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Erasca, Inc.Listing on record	Jun 29, 2026	AwardD (derivative)	29,888	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jan 5, 2026	AwardD (derivative)	23,872	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 26, 2025	AwardD (derivative)	120,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jan 2, 2025	AwardD (derivative)	28,877	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 21, 2024	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	May 22, 2024	Buy	80,000	2.27 USD	$181.6K	conv 30	SEC
Erasca, Inc.Listing on record	Jan 3, 2024	AwardD (derivative)	41,084	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Dec 4, 2023	Buy	30,000	1.66 USD	$49.8K	conv 40	SEC
Erasca, Inc.Listing on record	Jun 26, 2023	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PROJECT SAGE OLDCO, INC.Listing unverified	Jun 20, 2023	Award	15,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Apr 11, 2023	Buy	20,000	2.76 USD	$55.2K	conv 38	SEC
Erasca, Inc.Listing on record	Dec 15, 2022	Buy	20,000	4.87 USD	$97.4K	conv 48ClusterFirst in 12mo	SEC
Erasca, Inc.Listing on record	Jul 6, 2022	Other	-750,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 24, 2022	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	Other	750,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	OtherD (derivative)	-900,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	OtherD (derivative)	-180,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	Other	150,000	—	n/a (No price was disclosed in the filing)		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-6,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-15,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	Other	-706,464	27.00 USD	$19.1M		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-24,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-20,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	Other	-100,000	27.00 USD	$2.7M		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Erasca, Inc.Listing on record	Jun 29, 2026	AwardD (derivative)	29,888	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jan 5, 2026	AwardD (derivative)	23,872	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 26, 2025	AwardD (derivative)	120,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jan 2, 2025	AwardD (derivative)	28,877	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 21, 2024	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	May 22, 2024	Buy	80,000	2.27 USD	$181.6K	conv 30	SEC
Erasca, Inc.Listing on record	Jan 3, 2024	AwardD (derivative)	41,084	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Dec 4, 2023	Buy	30,000	1.66 USD	$49.8K	conv 40	SEC
Erasca, Inc.Listing on record	Jun 26, 2023	AwardD (derivative)	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PROJECT SAGE OLDCO, INC.Listing unverified	Jun 20, 2023	Award	15,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Apr 11, 2023	Buy	20,000	2.76 USD	$55.2K	conv 38	SEC
Erasca, Inc.Listing on record	Dec 15, 2022	Buy	20,000	4.87 USD	$97.4K	conv 48ClusterFirst in 12mo	SEC
Erasca, Inc.Listing on record	Jul 6, 2022	Other	-750,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jun 24, 2022	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	Other	750,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	OtherD (derivative)	-900,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	OtherD (derivative)	-180,000	—	n/a (No price was disclosed in the filing)		SEC
Erasca, Inc.Listing on record	Jul 20, 2021	Other	150,000	—	n/a (No price was disclosed in the filing)		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-6,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-15,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	Other	-706,464	27.00 USD	$19.1M		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-24,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	OtherD (derivative)	-20,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ignyta, Inc.Listing unverified	Feb 12, 2018	Other	-100,000	27.00 USD	$2.7M		SEC