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
$428.9K
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.
Recent Filings · Page 2 of 9
82 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| 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 |
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.