Thorndike William N Jr

Director at LEMAITRE VASCULAR INC · on record since Jun 20, 2008
Director at CNX Resources Corp · on record since May 6, 2026
Director at Perimeter Solutions, Inc. · on record since Nov 10, 2021

Insider trading activity of Thorndike William N Jr

Transactions on record: 82; since Sep 3, 2008

Open-market buys: 5; $2.2M

Open-market sells: 18; $16.7M

Companies traded: 3; last filing May 11, 2026

Figures computed from official regulatory filings — .

Companies where Thorndike William N Jr has traded

CNX Resources Corp34 tx · $4.5M · May 11, 2026
Perimeter Solutions, Inc.17 tx · $16.9M · Mar 11, 2026
LEMAITRE VASCULAR INC31 tx · $461K · Jul 26, 2013

Track record of Thorndike William N Jr

Statistical track record

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Open-market buys: 5

Last buy: Feb 12, 2018

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Transaction history of Thorndike William N Jr

Co-insiders of Thorndike William N Jr

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
CNX Resources CorpListing on record	May 11, 2026	Award	8,770	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 6, 2026	Exercise	83,097	13.19 USD	$1.1M	Unusual size	SEC
CNX Resources CorpListing on record	May 6, 2026	Sell	-28,800	38.25 USD	$1.1M		SEC
CNX Resources CorpListing on record	May 6, 2026	ExerciseD (derivative)	-83,097	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-90,043	23.18 USD	$2.1M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-34,957	23.85 USD	$833.7K		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-100,000	23.63 USD	$2.4M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-100,000	23.18 USD	$2.3M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-100,000	23.63 USD	$2.4M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-100,000	24.06 USD	$2.4M	Unusual size	SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-125,000	24.26 USD	$3M	Unusual size	SEC
Perimeter Solutions, Inc.Listing on record	Mar 5, 2026	Award	5,582,492	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Dec 11, 2025	Gift	-673,685	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Jun 24, 2025	Other	746,767	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Nov 8, 2024	ExerciseD (derivative)	-500,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Nov 8, 2024	Exercise	125,000	12.00 USD	$1.5M	Unusual size	SEC
CNX Resources CorpListing on record	May 6, 2024	Award	17,242	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 6, 2024	AwardD (derivative)	11,058	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Mar 18, 2024	Other	667,536	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 8, 2023	AwardD (derivative)	16,289	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 8, 2023	Award	27,342	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Feb 22, 2023	Other	696,446	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 9, 2022	AwardD (derivative)	10,850	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 9, 2022	Award	19,503	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	May 3, 2022	Other	1,541,100	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
CNX Resources CorpListing on record	May 11, 2026	Award	8,770	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 6, 2026	Exercise	83,097	13.19 USD	$1.1M	Unusual size	SEC
CNX Resources CorpListing on record	May 6, 2026	Sell	-28,800	38.25 USD	$1.1M		SEC
CNX Resources CorpListing on record	May 6, 2026	ExerciseD (derivative)	-83,097	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-90,043	23.18 USD	$2.1M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-34,957	23.85 USD	$833.7K		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-100,000	23.63 USD	$2.4M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 11, 2026	Sell	-100,000	23.18 USD	$2.3M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-100,000	23.63 USD	$2.4M		SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-100,000	24.06 USD	$2.4M	Unusual size	SEC
Perimeter Solutions, Inc.Listing on record	Mar 6, 2026	Sell	-125,000	24.26 USD	$3M	Unusual size	SEC
Perimeter Solutions, Inc.Listing on record	Mar 5, 2026	Award	5,582,492	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Dec 11, 2025	Gift	-673,685	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Jun 24, 2025	Other	746,767	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Nov 8, 2024	ExerciseD (derivative)	-500,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Nov 8, 2024	Exercise	125,000	12.00 USD	$1.5M	Unusual size	SEC
CNX Resources CorpListing on record	May 6, 2024	Award	17,242	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 6, 2024	AwardD (derivative)	11,058	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Mar 18, 2024	Other	667,536	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 8, 2023	AwardD (derivative)	16,289	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 8, 2023	Award	27,342	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	Feb 22, 2023	Other	696,446	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 9, 2022	AwardD (derivative)	10,850	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CNX Resources CorpListing on record	May 9, 2022	Award	19,503	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Perimeter Solutions, Inc.Listing on record	May 3, 2022	Other	1,541,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC