Cox Russell J.

Director at Gossamer Bio, Inc. · on record since Jun 5, 2026
EVP & COO at Jazz Pharmaceuticals plc · on record since Feb 29, 2016
Director at Spyre Therapeutics, Inc. · on record since May 19, 2016
Director at IMMUNIC, INC. · on record since Jan 4, 2018
Chief Executive Officer at IMMUNIC, INC. · on record since Jan 4, 2018

Insider trading activity of Cox Russell J.

Transactions on record: 93; since Mar 11, 2011

Open-market buys: 2; $185.2K

Open-market sells: 15; $3.7M

Companies traded: 4; last filing Sep 25, 2026

Figures computed from official regulatory filings — .

Companies where Cox Russell J. has traded

Gossamer Bio, Inc.10 tx · $115.2K · Sep 25, 2026
Spyre Therapeutics, Inc.9 tx · $70K · Jun 30, 2023
IMMUNIC, INC.3 tx · Jan 14, 2019
Jazz Pharmaceuticals plc71 tx · $12M · Dec 13, 2017

Track record of Cox Russell J.

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

Transaction history of Cox Russell J.

Co-insiders of Cox Russell J.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Gossamer Bio, Inc.Listing on record	Sep 25, 2026	AwardD (derivative)	10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 5, 2026	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 26, 2025	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 6, 2024	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 30, 2023	AwardD (derivative)	1,950,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 9, 2023	AwardD (derivative)	35,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jul 15, 2022	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 9, 2022	AwardD (derivative)	43,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 10, 2021	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 9, 2021	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 18, 2020	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 10, 2020	AwardD (derivative)	28,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 11, 2019	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 7, 2019	AwardD (derivative)	12,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Feb 12, 2019	Buy	7,200	16.00 USD	$115.2K	conv 71ClusterFirst in 12mo	SEC
IMMUNIC, INC.Listing on record	Jan 14, 2019	AwardD (derivative)	1,854,376	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
IMMUNIC, INC.Listing on record	Jan 14, 2019	OtherD (derivative)	-1,588,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 8, 2018	AwardD (derivative)	18,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
IMMUNIC, INC.Listing on record	Jan 4, 2018	AwardD (derivative)	1,588,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	44,200	8.23 USD	$363.8K		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-4,867	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-44,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	4,867	46.83 USD	$227.9K		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-1,691	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	1,691	59.13 USD	$100K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Gossamer Bio, Inc.Listing on record	Sep 25, 2026	AwardD (derivative)	10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 5, 2026	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 26, 2025	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 6, 2024	AwardD (derivative)	115,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 30, 2023	AwardD (derivative)	1,950,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 9, 2023	AwardD (derivative)	35,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jul 15, 2022	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 9, 2022	AwardD (derivative)	43,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 10, 2021	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 9, 2021	AwardD (derivative)	40,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 18, 2020	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 10, 2020	AwardD (derivative)	28,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Jun 11, 2019	AwardD (derivative)	23,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 7, 2019	AwardD (derivative)	12,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Gossamer Bio, Inc.Listing on record	Feb 12, 2019	Buy	7,200	16.00 USD	$115.2K	conv 71ClusterFirst in 12mo	SEC
IMMUNIC, INC.Listing on record	Jan 14, 2019	AwardD (derivative)	1,854,376	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
IMMUNIC, INC.Listing on record	Jan 14, 2019	OtherD (derivative)	-1,588,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spyre Therapeutics, Inc.Listing on record	Jun 8, 2018	AwardD (derivative)	18,400	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
IMMUNIC, INC.Listing on record	Jan 4, 2018	AwardD (derivative)	1,588,832	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	44,200	8.23 USD	$363.8K		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-4,867	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-44,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	4,867	46.83 USD	$227.9K		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	ExerciseD (derivative)	-1,691	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Jazz Pharmaceuticals plcListing on record	Dec 13, 2017	Exercise	1,691	59.13 USD	$100K		SEC