Hill Thomas W.

Director at ASTEC INDUSTRIES INC · on record since Jul 24, 2008
Director at Knife River Corp · on record since May 21, 2026
Director at Summit Materials, Inc. · on record since Mar 19, 2015
President & CEO at Summit Materials, Inc. · on record since Feb 19, 2019

Insider trading activity of Hill Thomas W.

Transactions on record: 212; since Jul 24, 2008

Open-market buys: 2; $687.8K

Open-market sells: 118; $42M

Companies traded: 3; last filing May 21, 2026

Figures computed from official regulatory filings — methodology.

Companies where Hill Thomas W. has traded

Knife River Corp3 tx · May 21, 2026
Summit Materials, Inc.204 tx · $57.9M · Jul 22, 2020
ASTEC INDUSTRIES INC5 tx · $35.1K · Jul 27, 2009

Track record of Hill Thomas W.

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

Transaction history of Hill Thomas W.

Co-insiders of Hill Thomas W.

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Company	Filed	Type	Qty	Price	Value · USD	Src
Knife River Corp	May 21, 2026	Award	2,040	0.00 USD	$0	SEC
Knife River Corp	May 27, 2025	Award	1,551	0.00 USD	$0	SEC
Knife River Corp	May 16, 2024	Award	1,905	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	GiftD	200,000	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	AwardD	150,916	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	GiftD	-200,000	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-10,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Other	-20,314	19.54 USD	$396.9K	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-35,179	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-17,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	10,252	—	—	SEC
Summit Materials, Inc.	Mar 3, 2020	Award	20,829	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	AwardD	69,231	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	35,179	—	—	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	17,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	ExerciseD	-17,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	AwardD	105,537	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	Exercise	10,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	Exercise	17,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	ExerciseD	-10,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	Other	-6,698	17.00 USD	$113.9K	SEC
Summit Materials, Inc.	Feb 26, 2019	Exercise	14,382	—	—	SEC
Summit Materials, Inc.	Feb 26, 2019	ExerciseD	-14,382	0.00 USD	$0	SEC
Summit Materials, Inc.	Feb 26, 2019	Other	-3,646	17.54 USD	$64K	SEC
Summit Materials, Inc.	Feb 19, 2019	Buy	31,250	16.25 USD	$507.8K	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
Knife River Corp	May 21, 2026	Award	2,040	0.00 USD	$0	SEC
Knife River Corp	May 27, 2025	Award	1,551	0.00 USD	$0	SEC
Knife River Corp	May 16, 2024	Award	1,905	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	GiftD	200,000	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	AwardD	150,916	0.00 USD	$0	SEC
Summit Materials, Inc.	Jul 22, 2020	GiftD	-200,000	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-10,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Other	-20,314	19.54 USD	$396.9K	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-35,179	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	ExerciseD	-17,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	10,252	—	—	SEC
Summit Materials, Inc.	Mar 3, 2020	Award	20,829	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	AwardD	69,231	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	35,179	—	—	SEC
Summit Materials, Inc.	Mar 3, 2020	Exercise	17,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	ExerciseD	-17,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	AwardD	105,537	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	Exercise	10,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	Exercise	17,252	—	—	SEC
Summit Materials, Inc.	Mar 4, 2019	ExerciseD	-10,252	0.00 USD	$0	SEC
Summit Materials, Inc.	Mar 4, 2019	Other	-6,698	17.00 USD	$113.9K	SEC
Summit Materials, Inc.	Feb 26, 2019	Exercise	14,382	—	—	SEC
Summit Materials, Inc.	Feb 26, 2019	ExerciseD	-14,382	0.00 USD	$0	SEC
Summit Materials, Inc.	Feb 26, 2019	Other	-3,646	17.54 USD	$64K	SEC
Summit Materials, Inc.	Feb 19, 2019	Buy	31,250	16.25 USD	$507.8K	SEC