Stejbach Mark

Director at Flexion Therapeutics Inc · on record since Sep 14, 2016
VP and Chief Commercial Offcr at TENGION INC · on record since Oct 18, 2010
Director at Indivior Pharmaceuticals, Inc. · on record since May 14, 2026
SVP/Chief Comm Off, Alks Inc at Alkermes plc. · on record since Mar 4, 2016

Insider trading activity of Stejbach Mark

Transactions on record: 126; since Apr 13, 2010

Open-market buys: 5; $99K

Open-market sells: 12; $5.4M

Companies traded: 4; last filing May 14, 2026

Figures computed from official regulatory filings — .

Companies where Stejbach Mark has traded

Indivior Pharmaceuticals, Inc.3 tx · $27.4K · May 14, 2026
Flexion Therapeutics Inc17 tx · $154.3K · Nov 19, 2021
Alkermes plc.100 tx · $8.1M · Mar 5, 2018
TENGION INC6 tx · $500 · May 13, 2011

Track record of Stejbach Mark

Statistical track record

Free account

Open-market buys: 5

Last buy: Jan 5, 2026

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

Transaction history of Stejbach Mark

Co-insiders of Stejbach Mark

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Indivior Pharmaceuticals, Inc.Listing on record	May 14, 2026	Award	6,518	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Indivior Pharmaceuticals, Inc.Listing on record	Jan 28, 2026	Award	3,722	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Indivior Pharmaceuticals, Inc.Listing on record	Jan 7, 2026	Buy	775	35.39 USD	$27.4K	conv 44ClusterFirst in 12mo	SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-25,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-7,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	Other	-12,631	8.50 USD	$107.4K		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-7,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Jun 28, 2021	AwardD (derivative)	7,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 28, 2021	Award	4,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 12, 2020	AwardD (derivative)	7,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 12, 2020	Award	4,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	May 27, 2020	Buy	2,051	9.75 USD	$20K	conv 42First in 12mo	SEC
Flexion Therapeutics IncListing unverified	Jun 21, 2019	AwardD (derivative)	12,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 21, 2018	AwardD (derivative)	12,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Exercise	5,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Other	-2,334	57.41 USD	$134K		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Exercise	2,813	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	ExerciseD (derivative)	-2,813	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Other	-1,251	60.05 USD	$75.1K		SEC
Alkermes plc.Listing on record	Mar 5, 2018	ExerciseD (derivative)	-5,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Feb 28, 2018	Exercise	2,625	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Feb 28, 2018	ExerciseD (derivative)	-2,625	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Indivior Pharmaceuticals, Inc.Listing on record	May 14, 2026	Award	6,518	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Indivior Pharmaceuticals, Inc.Listing on record	Jan 28, 2026	Award	3,722	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Indivior Pharmaceuticals, Inc.Listing on record	Jan 7, 2026	Buy	775	35.39 USD	$27.4K	conv 44ClusterFirst in 12mo	SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-25,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-7,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	Other	-12,631	8.50 USD	$107.4K		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-7,000	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Nov 19, 2021	OtherD (derivative)	-12,500	—	n/a (No price was disclosed in the filing)		SEC
Flexion Therapeutics IncListing unverified	Jun 28, 2021	AwardD (derivative)	7,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 28, 2021	Award	4,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 12, 2020	AwardD (derivative)	7,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 12, 2020	Award	4,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	May 27, 2020	Buy	2,051	9.75 USD	$20K	conv 42First in 12mo	SEC
Flexion Therapeutics IncListing unverified	Jun 21, 2019	AwardD (derivative)	12,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Flexion Therapeutics IncListing unverified	Jun 21, 2018	AwardD (derivative)	12,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Exercise	5,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Other	-2,334	57.41 USD	$134K		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Exercise	2,813	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	ExerciseD (derivative)	-2,813	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Mar 5, 2018	Other	-1,251	60.05 USD	$75.1K		SEC
Alkermes plc.Listing on record	Mar 5, 2018	ExerciseD (derivative)	-5,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Feb 28, 2018	Exercise	2,625	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Alkermes plc.Listing on record	Feb 28, 2018	ExerciseD (derivative)	-2,625	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC