WRISTON WALTER B

Director at CYGNUS INC /DE/ · on record since Jun 7, 2004
Director at ICOS CORP · on record since Oct 7, 2003
Director at VION PHARMACEUTICALS INC · on record since Dec 11, 2003

Insider trading activity of WRISTON WALTER B

Transactions on record: 22; since Oct 7, 2003

Open-market buys: 0

Open-market sells: 12; $763.8K

Companies traded: 3; last filing Jun 15, 2004

Figures computed from official regulatory filings — .

Companies where WRISTON WALTER B has traded

VION PHARMACEUTICALS INC4 tx · $146.4K · Jun 15, 2004
CYGNUS INC /DE/1 tx · Jun 7, 2004
ICOS CORP17 tx · $1M · May 14, 2004

Track record of WRISTON WALTER B

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of WRISTON WALTER B

Co-insiders of WRISTON WALTER B

CARY FRANK TCYGNUS INC /DE/ +2
Ackerman Neil RCYGNUS INC /DE/
BECK TERESAICOS CORP
Bickerstaff GeorgeVION PHARMACEUTICALS INC
BLUM LEONARD MICOS CORP
BRYSON VAUGHN DICOS CORP
Cahill Ann LeeVION PHARMACEUTICALS INC
CARLSON CRAIG WCYGNUS INC /DE/
CARTER STEPHENVION PHARMACEUTICALS INC
Chang ShingICOS CORP
CLARK PAUL NICOS CORP
DOYLE TERRENCEVION PHARMACEUTICALS INC
ELLIOTT ASSOCIATES, L.P.VION PHARMACEUTICALS INC
ELLIOTT INTERNATIONAL, L.P.VION PHARMACEUTICALS INC
FERGUSON JAMES LICOS CORP
Fitzgerald MeghanVION PHARMACEUTICALS INC
GALLATIN W MICHAELICOS CORP
GATES WILLIAM H IIIICOS CORP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
VION PHARMACEUTICALS INCListing unverified	Jun 15, 2004	AwardD (derivative)	15,000	4.04 USD	$60.6K		SEC
VION PHARMACEUTICALS INCListing unverified	Jun 14, 2004	AwardD (derivative)	15,000	3.95 USD	$59.3K	Unusual size	SEC
CYGNUS INC /DE/Listing unverified	Jun 7, 2004	AwardD (derivative)	18,831	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ICOS CORPListing unverified	May 14, 2004	AwardD (derivative)	12,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-2,420	31.76 USD	$76.9K		SEC
ICOS CORPListing unverified	May 7, 2004	Exercise	24,000	5.00 USD	$120K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.75 USD	$31.8K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-3,100	32.02 USD	$99.3K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.95 USD	$32K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-9,457	31.73 USD	$300.1K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,200	32.00 USD	$38.4K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.74 USD	$31.7K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	32.03 USD	$32K		SEC
ICOS CORPListing unverified	May 7, 2004	ExerciseD (derivative)	-24,000	5.00 USD	$120K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.78 USD	$31.8K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-700	32.01 USD	$22.4K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-223	31.81 USD	$7.1K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,900	31.80 USD	$60.4K		SEC
ICOS CORPListing unverified	Dec 22, 2003	Gift	-1,840	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
VION PHARMACEUTICALS INCListing unverified	Dec 11, 2003	AwardD (derivative)	1,811	1.67 USD	$3K		SEC
VION PHARMACEUTICALS INCListing unverified	Dec 11, 2003	AwardD (derivative)	15,000	1.57 USD	$23.6K		SEC
ICOS CORPListing unverified	Oct 7, 2003	Gift	-13,160	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
VION PHARMACEUTICALS INCListing unverified	Jun 15, 2004	AwardD (derivative)	15,000	4.04 USD	$60.6K		SEC
VION PHARMACEUTICALS INCListing unverified	Jun 14, 2004	AwardD (derivative)	15,000	3.95 USD	$59.3K	Unusual size	SEC
CYGNUS INC /DE/Listing unverified	Jun 7, 2004	AwardD (derivative)	18,831	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ICOS CORPListing unverified	May 14, 2004	AwardD (derivative)	12,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-2,420	31.76 USD	$76.9K		SEC
ICOS CORPListing unverified	May 7, 2004	Exercise	24,000	5.00 USD	$120K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.75 USD	$31.8K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-3,100	32.02 USD	$99.3K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.95 USD	$32K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-9,457	31.73 USD	$300.1K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,200	32.00 USD	$38.4K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.74 USD	$31.7K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	32.03 USD	$32K		SEC
ICOS CORPListing unverified	May 7, 2004	ExerciseD (derivative)	-24,000	5.00 USD	$120K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,000	31.78 USD	$31.8K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-700	32.01 USD	$22.4K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-223	31.81 USD	$7.1K		SEC
ICOS CORPListing unverified	May 7, 2004	Sell	-1,900	31.80 USD	$60.4K		SEC
ICOS CORPListing unverified	Dec 22, 2003	Gift	-1,840	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
VION PHARMACEUTICALS INCListing unverified	Dec 11, 2003	AwardD (derivative)	1,811	1.67 USD	$3K		SEC
VION PHARMACEUTICALS INCListing unverified	Dec 11, 2003	AwardD (derivative)	15,000	1.57 USD	$23.6K		SEC
ICOS CORPListing unverified	Oct 7, 2003	Gift	-13,160	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC