WHITFIELD ROY A

Director at INCYTE CORP · on record since Jan 4, 2006
Director at NEKTAR THERAPEUTICS · on record since Sep 22, 2006
Director at Solexa, Inc. · on record since Sep 5, 2006
Director at ILLUMINA, INC. · on record since Feb 5, 2007
Chairman at INCYTE CORP · on record since May 27, 2004

Insider trading activity of WHITFIELD ROY A

Transactions on record: 341; since Sep 5, 2003

Open-market buys: 4; $918.5K

Open-market sells: 150; $22.3M

Companies traded: 4; last filing Sep 25, 2026

Figures computed from official regulatory filings — .

Companies where WHITFIELD ROY A has traded

NEKTAR THERAPEUTICS78 tx · $4.8M · Sep 25, 2026
ILLUMINA, INC.107 tx · $16.2M · Aug 15, 2016
INCYTE CORP152 tx · $9.8M · Jan 17, 2014
Solexa, Inc.4 tx · $203.6K · Jan 30, 2007

Track record of WHITFIELD ROY A

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

Transaction history of WHITFIELD ROY A

Co-insiders of WHITFIELD ROY A

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
NEKTAR THERAPEUTICSListing on record	Sep 25, 2026	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2026	Award	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Oct 1, 2025	AwardD (derivative)	8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jan 17, 2025	AwardD (derivative)	120,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2023	AwardD (derivative)	85,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jun 15, 2023	Sell	-30,000	0.57 USD	$17.1K		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2022	AwardD (derivative)	20,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2022	Award	10,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2021	AwardD (derivative)	20,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2021	Award	10,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 17, 2021	ExerciseD (derivative)	-40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 17, 2021	Exercise	40,000	13.80 USD	$552K	Unusual size	SEC
NEKTAR THERAPEUTICSListing on record	Jan 4, 2021	Gift	-51,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jan 4, 2021	Gift	51,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2020	Award	9,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2020	AwardD (derivative)	18,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2020	Award	9,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2020	AwardD (derivative)	18,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 8, 2020	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 8, 2020	Exercise	30,000	9.24 USD	$277.2K		SEC
NEKTAR THERAPEUTICSListing on record	Dec 20, 2019	Exercise	10,000	9.24 USD	$92.4K		SEC
NEKTAR THERAPEUTICSListing on record	Dec 20, 2019	ExerciseD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 27, 2019	Award	6,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 27, 2019	AwardD (derivative)	13,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Oct 1, 2018	AwardD (derivative)	9,500	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
NEKTAR THERAPEUTICSListing on record	Sep 25, 2026	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2026	Award	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Oct 1, 2025	AwardD (derivative)	8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jan 17, 2025	AwardD (derivative)	120,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2023	AwardD (derivative)	85,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jun 15, 2023	Sell	-30,000	0.57 USD	$17.1K		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2022	AwardD (derivative)	20,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 20, 2022	Award	10,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2021	AwardD (derivative)	20,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2021	Award	10,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 17, 2021	ExerciseD (derivative)	-40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 17, 2021	Exercise	40,000	13.80 USD	$552K	Unusual size	SEC
NEKTAR THERAPEUTICSListing on record	Jan 4, 2021	Gift	-51,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Jan 4, 2021	Gift	51,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2020	Award	9,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 25, 2020	AwardD (derivative)	18,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2020	Award	9,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 24, 2020	AwardD (derivative)	18,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 8, 2020	ExerciseD (derivative)	-30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 8, 2020	Exercise	30,000	9.24 USD	$277.2K		SEC
NEKTAR THERAPEUTICSListing on record	Dec 20, 2019	Exercise	10,000	9.24 USD	$92.4K		SEC
NEKTAR THERAPEUTICSListing on record	Dec 20, 2019	ExerciseD (derivative)	-10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 27, 2019	Award	6,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Sep 27, 2019	AwardD (derivative)	13,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NEKTAR THERAPEUTICSListing on record	Oct 1, 2018	AwardD (derivative)	9,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC