TWOMEY CHRISTOPHER J

Director at SENOMYX INC · on record since Mar 16, 2006
Director at CADENCE PHARMACEUTICALS INC · on record since Oct 24, 2006
Director at TANDEM DIABETES CARE INC · on record since Nov 21, 2013
Director at Bionano Genomics, Inc. · on record since May 14, 2026
SVP of Finance & CFO at ALERE SAN DIEGO, INC. · on record since Oct 25, 2004
SVP of Finance & CFO at ALERE SAN DIEGO, INC. · on record since Jun 17, 2005

Insider trading activity of TWOMEY CHRISTOPHER J

Transactions on record: 290; since Jun 18, 2004

Open-market buys: 3; $211.3K

Open-market sells: 79; $30M

Companies traded: 5; last filing May 22, 2026

Figures computed from official regulatory filings — .

Companies where TWOMEY CHRISTOPHER J has traded

TANDEM DIABETES CARE INC72 tx · $7.4M · May 22, 2026
Bionano Genomics, Inc.17 tx · $84.3K · May 14, 2026
SENOMYX INC18 tx · Nov 2, 2018
CADENCE PHARMACEUTICALS INC19 tx · $1.7M · Mar 21, 2014
ALERE SAN DIEGO, INC.164 tx · $61.9M · Jun 29, 2007

Track record of TWOMEY CHRISTOPHER J

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

Transaction history of TWOMEY CHRISTOPHER J

Co-insiders of TWOMEY CHRISTOPHER J

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TANDEM DIABETES CARE INCListing on record	May 22, 2026	ExerciseD (derivative)	-8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 22, 2026	AwardD (derivative)	10,220	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 22, 2026	Exercise	8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	May 14, 2026	AwardD (derivative)	9,149	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 12, 2025	AwardD (derivative)	2,775	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	Exercise	4,387	20.64 USD	$90.5K		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	AwardD (derivative)	8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	ExerciseD (derivative)	-4,387	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 20, 2024	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	Exercise	4,434	51.73 USD	$229.4K	Unusual size	SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	ExerciseD (derivative)	-4,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	AwardD (derivative)	4,387	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 16, 2023	AwardD (derivative)	250,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	Exercise	2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	ExerciseD (derivative)	-2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	ExerciseD (derivative)	4,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jul 18, 2022	AwardD (derivative)	44,470	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 13, 2022	AwardD (derivative)	164,422	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 27, 2022	AwardD (derivative)	2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 19, 2022	Exercise	2,205	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 19, 2022	ExerciseD (derivative)	2,205	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	ExerciseD (derivative)	238	73.73 USD	$17.5K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Sell	-158	111.73 USD	$17.7K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Exercise	135	73.73 USD	$10K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Exercise	238	73.73 USD	$17.5K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TANDEM DIABETES CARE INCListing on record	May 22, 2026	ExerciseD (derivative)	-8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 22, 2026	AwardD (derivative)	10,220	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 22, 2026	Exercise	8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	May 14, 2026	AwardD (derivative)	9,149	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 12, 2025	AwardD (derivative)	2,775	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	Exercise	4,387	20.64 USD	$90.5K		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	AwardD (derivative)	8,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 23, 2025	ExerciseD (derivative)	-4,387	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 20, 2024	AwardD (derivative)	30,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	Exercise	4,434	51.73 USD	$229.4K	Unusual size	SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	ExerciseD (derivative)	-4,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 24, 2024	AwardD (derivative)	4,387	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 16, 2023	AwardD (derivative)	250,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	Exercise	2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	ExerciseD (derivative)	-2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 26, 2023	ExerciseD (derivative)	4,434	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jul 18, 2022	AwardD (derivative)	44,470	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Bionano Genomics, Inc.Listing on record	Jun 13, 2022	AwardD (derivative)	164,422	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 27, 2022	AwardD (derivative)	2,757	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 19, 2022	Exercise	2,205	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 19, 2022	ExerciseD (derivative)	2,205	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	ExerciseD (derivative)	238	73.73 USD	$17.5K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Sell	-158	111.73 USD	$17.7K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Exercise	135	73.73 USD	$10K		SEC
TANDEM DIABETES CARE INCListing on record	May 10, 2022	Exercise	238	73.73 USD	$17.5K		SEC