Home

Thomas W. Hill

CIK 1440948 · President & CEO · last filed 2026-05-21

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$491.8K

Companies

3

Total Filings

82

Lifetime Open-Market Net

-$41.30M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
KNF Director 5,496 $76.92 $422.8K $0 3 2026-05-21
Summit Materials, Inc. (SUM) Delisted President & CEO 251,071 $52.49 $13.18M -$41.30M 74 2020-07-22
ASTE Director 1,344 $51.37 $69.0K $0 5 2009-07-27

Recent Filings · Page 2 of 9

82 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2018-06-21 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$345.2K EDGAR
2018-06-08 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$342.6K EDGAR
2018-05-23 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$362.3K EDGAR
2018-05-11 Summit Materials, Inc. (SUM) Delisted Mixed +62,500 -$369.2K EDGAR
2018-04-30 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$356.9K EDGAR
2018-04-13 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$366.2K EDGAR
2018-03-28 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$378.4K EDGAR
2018-03-16 Summit Materials, Inc. (SUM) Delisted Mixed — -$5.88M EDGAR
2018-03-14 Summit Materials, Inc. (SUM) Delisted Sell (S) −12,500 -$398.4K EDGAR
2018-03-01 Summit Materials, Inc. (SUM) Delisted Mixed −4,744 -$479.4K EDGAR
Showing 11–20 of 82
Page 2 of 9
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.