Erck Stanley C

Director at INTERCELL USA, INC. · on record since Jan 25, 2006
President & CEO at INTERCELL USA, INC. · on record since Mar 7, 2007
Director at BIOCRYST PHARMACEUTICALS INC · on record since Dec 23, 2008
Director at NOVAVAX INC · on record since Jun 26, 2009
President and CEO at NOVAVAX INC · on record since Apr 1, 2016
Director at MAXCYTE, INC. · on record since Jul 29, 2021

Insider trading activity of Erck Stanley C

Transactions on record: 238; since Feb 17, 2006

Open-market buys: 14; $699.9K

Open-market sells: 96; $51.6M

Companies traded: 4; last filing Jun 22, 2026

Figures computed from official regulatory filings — .

Companies where Erck Stanley C has traded

MAXCYTE, INC.25 tx · $690.5K · Jun 22, 2026
NOVAVAX INC172 tx · $71.1M · Dec 16, 2022
BIOCRYST PHARMACEUTICALS INC14 tx · $133K · Nov 30, 2018
INTERCELL USA, INC.27 tx · $6.7M · Aug 7, 2008

Track record of Erck Stanley C

Statistical track record

Free account

Open-market buys: 14

Last buy: Aug 13, 2025

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

Transaction history of Erck Stanley C

Co-insiders of Erck Stanley C

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MAXCYTE, INC.Listing on record	Jun 22, 2026	AwardD (derivative)	49,579	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 22, 2026	Award	30,421	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Aug 13, 2025	Buy	100,000	1.37 USD	$137K	conv 71ClusterUnusual size+1	SEC
MAXCYTE, INC.Listing on record	Jun 23, 2025	Award	29,210	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 23, 2025	AwardD (derivative)	50,790	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	Exercise	47,689	0.04 USD	$1.9K		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	ExerciseD (derivative)	-47,689	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	Sell	-47,689	3.72 USD	$177.4K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	ExerciseD (derivative)	-26,082	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Exercise	26,082	0.04 USD	$1K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Sell	-26,082	3.78 USD	$98.6K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	ExerciseD (derivative)	-21,607	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Exercise	21,607	0.04 USD	$864.3		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Sell	-21,607	3.71 USD	$80.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	ExerciseD (derivative)	-17,922	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Exercise	29,767	0.04 USD	$1.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Sell	-29,767	3.97 USD	$118.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Exercise	17,922	0.04 USD	$716.9		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Sell	-17,922	4.10 USD	$73.5K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	ExerciseD (derivative)	-29,767	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 13, 2024	AwardD (derivative)	40,701	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 13, 2024	Award	21,367	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 23, 2023	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOVAVAX INCListing on record	Dec 16, 2022	ExerciseD (derivative)	-6,966	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOVAVAX INCListing on record	Dec 16, 2022	Exercise	6,966	—	n/a (No price was disclosed in the filing)		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MAXCYTE, INC.Listing on record	Jun 22, 2026	AwardD (derivative)	49,579	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 22, 2026	Award	30,421	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Aug 13, 2025	Buy	100,000	1.37 USD	$137K	conv 71ClusterUnusual size+1	SEC
MAXCYTE, INC.Listing on record	Jun 23, 2025	Award	29,210	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 23, 2025	AwardD (derivative)	50,790	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	Exercise	47,689	0.04 USD	$1.9K		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	ExerciseD (derivative)	-47,689	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Nov 5, 2024	Sell	-47,689	3.72 USD	$177.4K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	ExerciseD (derivative)	-26,082	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Exercise	26,082	0.04 USD	$1K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Sell	-26,082	3.78 USD	$98.6K		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	ExerciseD (derivative)	-21,607	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Exercise	21,607	0.04 USD	$864.3		SEC
MAXCYTE, INC.Listing on record	Oct 2, 2024	Sell	-21,607	3.71 USD	$80.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	ExerciseD (derivative)	-17,922	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Exercise	29,767	0.04 USD	$1.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Sell	-29,767	3.97 USD	$118.2K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Exercise	17,922	0.04 USD	$716.9		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	Sell	-17,922	4.10 USD	$73.5K		SEC
MAXCYTE, INC.Listing on record	Sep 5, 2024	ExerciseD (derivative)	-29,767	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 13, 2024	AwardD (derivative)	40,701	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 13, 2024	Award	21,367	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MAXCYTE, INC.Listing on record	Jun 23, 2023	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOVAVAX INCListing on record	Dec 16, 2022	ExerciseD (derivative)	-6,966	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOVAVAX INCListing on record	Dec 16, 2022	Exercise	6,966	—	n/a (No price was disclosed in the filing)		SEC