Caulfield Thomas

Director at PDF SOLUTIONS INC · on record since Sep 19, 2006
Director at GLOBALFOUNDRIES Inc. · on record since May 5, 2026
Director at Sandisk Corp · on record since May 14, 2026
Director at USA Rare Earth, Inc. · on record since Jun 4, 2026
EVP SALES, MARKETING & CS at NOVELLUS SYSTEMS INC · on record since Nov 1, 2005
Director at WESTERN DIGITAL CORP · on record since Jul 8, 2021

Insider trading activity of Caulfield Thomas

Transactions on record: 82; since Nov 1, 2005

Open-market buys: 0

Open-market sells: 11; $1.8M

Companies traded: 6; last filing Oct 5, 2026

Figures computed from official regulatory filings — .

Companies where Caulfield Thomas has traded

USA Rare Earth, Inc.7 tx · Oct 5, 2026
Sandisk Corp6 tx · May 14, 2026
GLOBALFOUNDRIES Inc.1 tx · May 5, 2026
WESTERN DIGITAL CORP5 tx · Nov 22, 2024
PDF SOLUTIONS INC21 tx · $33K · Sep 11, 2013
NOVELLUS SYSTEMS INC42 tx · $4.5M · Jun 3, 2009

Track record of Caulfield Thomas

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

Transaction history of Caulfield Thomas

Co-insiders of Caulfield Thomas

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
USA Rare Earth, Inc.Listing unverified	Oct 5, 2026	Award	1,482	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jul 7, 2026	Award	271	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	Award	407	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	Exercise	2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	AwardD (derivative)	6,438	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	ExerciseD (derivative)	-2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	May 14, 2026	Gift	-9,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
GLOBALFOUNDRIES Inc.Listing on record	May 5, 2026	Award	146,199	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Mar 23, 2026	AwardD (derivative)	2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 5, 2026	Gift	14,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 5, 2026	Gift	-14,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Nov 19, 2025	Award	979	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 4, 2025	Award	4,148	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 4, 2025	Award	5,693	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 22, 2024	Award	3,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 16, 2023	Award	5,213	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 17, 2022	Award	6,589	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 17, 2021	Award	4,103	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Jul 8, 2021	Award	2,073	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Sep 11, 2013	Gift	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	May 30, 2013	Award	7,374	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	May 24, 2012	Award	3,750	8.79 USD	$33K	SEC
PDF SOLUTIONS INCListing on record	May 24, 2012	AwardD (derivative)	11,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Jun 1, 2011	AwardD (derivative)	11,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Jun 1, 2011	Award	3,750	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	Src
USA Rare Earth, Inc.Listing unverified	Oct 5, 2026	Award	1,482	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jul 7, 2026	Award	271	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	Award	407	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	Exercise	2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	AwardD (derivative)	6,438	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Jun 4, 2026	ExerciseD (derivative)	-2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	May 14, 2026	Gift	-9,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
GLOBALFOUNDRIES Inc.Listing on record	May 5, 2026	Award	146,199	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
USA Rare Earth, Inc.Listing unverified	Mar 23, 2026	AwardD (derivative)	2,548	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 5, 2026	Gift	14,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 5, 2026	Gift	-14,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Nov 19, 2025	Award	979	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 4, 2025	Award	4,148	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Sandisk CorpListing unverified	Mar 4, 2025	Award	5,693	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 22, 2024	Award	3,759	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 16, 2023	Award	5,213	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 17, 2022	Award	6,589	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Nov 17, 2021	Award	4,103	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTERN DIGITAL CORPListing on record	Jul 8, 2021	Award	2,073	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Sep 11, 2013	Gift	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	May 30, 2013	Award	7,374	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	May 24, 2012	Award	3,750	8.79 USD	$33K	SEC
PDF SOLUTIONS INCListing on record	May 24, 2012	AwardD (derivative)	11,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Jun 1, 2011	AwardD (derivative)	11,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
PDF SOLUTIONS INCListing on record	Jun 1, 2011	Award	3,750	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC