SHEFFERY MICHAEL B

Director at MEMORY PHARMACEUTICALS CORP · on record since Apr 5, 2004
Director at ATHERSYS, INC / NEW · on record since Jun 12, 2007
10% owner at ATHERSYS, INC / NEW · on record since Jun 10, 2009
Director at SUPERNUS PHARMACEUTICALS, INC. · on record since Apr 30, 2012
Director at ORPHAN MEDICAL INC · on record since May 6, 2005

Insider trading activity of SHEFFERY MICHAEL B

Transactions on record: 31; since Apr 12, 2004

Open-market buys: 9; $21.7M

Open-market sells: 0

Companies traded: 3; last filing May 7, 2012

Figures computed from official regulatory filings — .

Companies where SHEFFERY MICHAEL B has traded

SUPERNUS PHARMACEUTICALS, INC.9 tx · $5.5M · May 7, 2012
ATHERSYS, INC / NEW21 tx · $16.2M · Jun 14, 2010
MEMORY PHARMACEUTICALS CORP1 tx · Apr 12, 2004

Track record of SHEFFERY MICHAEL B

Statistical track record

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Open-market buys: 13

Last buy: May 4, 2012

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Transaction history of SHEFFERY MICHAEL B

Co-insiders of SHEFFERY MICHAEL B

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	274,873	5.00 USD	$1.4M	conv 54ClusterFirst in 12mo	SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-827,627	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	734,128	5.00 USD	$3.7M	conv 55ClusterFirst in 12mo	SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	624,710	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	1,668,472	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-6,673,891	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-2,498,842	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	206,816	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	90,999	5.00 USD	$455K	conv 54ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	Jun 14, 2010	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	466	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	3,406	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	-1,800,153	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	-4,947	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jun 10, 2009	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Mar 18, 2009	Buy	52,200	0.65	$33.9K	conv 28Cluster	SEC
ATHERSYS, INC / NEWListing on record	Mar 18, 2009	Buy	110,000	0.84	$92.4K	conv 23Cluster	SEC
ATHERSYS, INC / NEWListing on record	Jun 18, 2008	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	Buy	268,000	2.40	$643.2K	conv 35Cluster	SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	AwardD (derivative)	-75,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	BuyD (derivative)	-750,000	—	n/a (No price was disclosed in the filing)	ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	AwardD (derivative)	-75,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	BuyD (derivative)	-750,000	—	n/a (No price was disclosed in the filing)	ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	Buy	130,000	2.40	$312K	conv 29	SEC
ATHERSYS, INC / NEWListing on record	May 15, 2008	AwardD (derivative)	-75,000	0.00	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
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	274,873	5.00 USD	$1.4M	conv 54ClusterFirst in 12mo	SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-827,627	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	734,128	5.00 USD	$3.7M	conv 55ClusterFirst in 12mo	SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	624,710	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	1,668,472	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-6,673,891	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	OtherD (derivative)	-2,498,842	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Other	206,816	—	n/a (No price was disclosed in the filing)		SEC
SUPERNUS PHARMACEUTICALS, INC.Listing on record	May 7, 2012	Buy	90,999	5.00 USD	$455K	conv 54ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	Jun 14, 2010	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	466	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	3,406	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	-1,800,153	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jan 12, 2010	Other	-4,947	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Jun 10, 2009	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	Mar 18, 2009	Buy	52,200	0.65	$33.9K	conv 28Cluster	SEC
ATHERSYS, INC / NEWListing on record	Mar 18, 2009	Buy	110,000	0.84	$92.4K	conv 23Cluster	SEC
ATHERSYS, INC / NEWListing on record	Jun 18, 2008	AwardD (derivative)	15,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	Buy	268,000	2.40	$643.2K	conv 35Cluster	SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	AwardD (derivative)	-75,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 23, 2008	BuyD (derivative)	-750,000	—	n/a (No price was disclosed in the filing)	ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	AwardD (derivative)	-75,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	BuyD (derivative)	-750,000	—	n/a (No price was disclosed in the filing)	ClusterFirst in 12mo	SEC
ATHERSYS, INC / NEWListing on record	May 21, 2008	Buy	130,000	2.40	$312K	conv 29	SEC
ATHERSYS, INC / NEWListing on record	May 15, 2008	AwardD (derivative)	-75,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC