Leimkuhler William F.

Director at SPEEDUS CORP · on record since Dec 20, 2006
Director at INTEGRAL SYSTEMS INC /MD/ · on record since May 5, 2006
Director at ARGAN INC · on record since Sep 28, 2007
Director at Elite Health Systems Inc. · on record since Feb 13, 2012
Director at Northern Power Systems Corp. · on record since Apr 24, 2014

Insider trading activity of Leimkuhler William F.

Transactions on record: 111; since May 5, 2006

Open-market buys: 7; $86.4M

Open-market sells: 19; $24.6M

Companies traded: 5; last filing Jun 12, 2026

Figures computed from official regulatory filings — .

Companies where Leimkuhler William F. has traded

ARGAN INC91 tx · $31.3M · Jun 12, 2026
Elite Health Systems Inc.4 tx · $38K · Aug 8, 2025
Northern Power Systems Corp.7 tx · $86.4M · May 30, 2017
INTEGRAL SYSTEMS INC /MD/5 tx · $552.8K · Feb 19, 2010
SPEEDUS CORP4 tx · Dec 3, 2008

Track record of Leimkuhler William F.

Statistical track record

Free account

Open-market buys: 7

Last buy: May 22, 2015

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of Leimkuhler William F.

Co-insiders of Leimkuhler William F.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
ARGAN INCListing on record	Jun 12, 2026	AwardD (derivative)	189	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Jun 12, 2026	Exercise	533	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Jun 12, 2026	ExerciseD (derivative)	-530	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-5,000	617.41 USD	$3.1M		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-400	621.14 USD	$248.5K		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-400	618.61 USD	$247.4K		SEC
ARGAN INCListing on record	Apr 15, 2026	Sell	-8,444	598.49 USD	$5.1M	Unusual size	SEC
ARGAN INCListing on record	Jan 21, 2026	Sell	-11,044	379.15 USD	$4.2M	Unusual size	SEC
ARGAN INCListing on record	Jan 14, 2026	Sell	-4,212	320.53 USD	$1.4M		SEC
ARGAN INCListing on record	Jan 14, 2026	Sell	-2,164	318.28 USD	$688.8K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	4,442	37.13 USD	$164.9K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	8,626	45.75 USD	$394.6K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	4,463	35.72 USD	$159.4K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	8,794	40.15 USD	$353.1K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-5,000	37.13 USD	$185.7K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-5,000	35.72 USD	$178.6K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-10,000	40.15 USD	$401.5K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-10,000	45.75 USD	$457.5K		SEC
ARGAN INCListing on record	Dec 29, 2025	Sell	-100	337.01 USD	$33.7K		SEC
ARGAN INCListing on record	Dec 29, 2025	Gift	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 29, 2025	Sell	-100	337.93 USD	$33.8K		SEC
ARGAN INCListing on record	Dec 17, 2025	Exercise	1,844	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	Exercise	856	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	ExerciseD (derivative)	-833	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	ExerciseD (derivative)	-1,750	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	Signals	Src
ARGAN INCListing on record	Jun 12, 2026	AwardD (derivative)	189	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Jun 12, 2026	Exercise	533	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Jun 12, 2026	ExerciseD (derivative)	-530	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-5,000	617.41 USD	$3.1M		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-400	621.14 USD	$248.5K		SEC
ARGAN INCListing on record	Apr 29, 2026	Sell	-400	618.61 USD	$247.4K		SEC
ARGAN INCListing on record	Apr 15, 2026	Sell	-8,444	598.49 USD	$5.1M	Unusual size	SEC
ARGAN INCListing on record	Jan 21, 2026	Sell	-11,044	379.15 USD	$4.2M	Unusual size	SEC
ARGAN INCListing on record	Jan 14, 2026	Sell	-4,212	320.53 USD	$1.4M		SEC
ARGAN INCListing on record	Jan 14, 2026	Sell	-2,164	318.28 USD	$688.8K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	4,442	37.13 USD	$164.9K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	8,626	45.75 USD	$394.6K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	4,463	35.72 USD	$159.4K		SEC
ARGAN INCListing on record	Jan 9, 2026	Exercise	8,794	40.15 USD	$353.1K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-5,000	37.13 USD	$185.7K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-5,000	35.72 USD	$178.6K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-10,000	40.15 USD	$401.5K		SEC
ARGAN INCListing on record	Jan 9, 2026	ExerciseD (derivative)	-10,000	45.75 USD	$457.5K		SEC
ARGAN INCListing on record	Dec 29, 2025	Sell	-100	337.01 USD	$33.7K		SEC
ARGAN INCListing on record	Dec 29, 2025	Gift	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 29, 2025	Sell	-100	337.93 USD	$33.8K		SEC
ARGAN INCListing on record	Dec 17, 2025	Exercise	1,844	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	Exercise	856	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	ExerciseD (derivative)	-833	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ARGAN INCListing on record	Dec 17, 2025	ExerciseD (derivative)	-1,750	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC