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.
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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 6 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 |
|---|---|---|---|---|---|
| 2017-02-28 | Summit Materials, Inc. (SUM) Delisted | Mixed | +339 | -$336.9K | EDGAR |
| 2017-02-21 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −10,000 | -$239.4K | EDGAR |
| 2017-02-15 | Summit Materials, Inc. (SUM) Delisted | Conv (C) | +30,000 | $0 | EDGAR |
| 2017-01-19 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −10,000 | -$235.9K | EDGAR |
| 2017-01-06 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −10,000 | -$245.7K | EDGAR |
| 2016-12-22 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −10,000 | -$241.9K | EDGAR |
| 2016-12-08 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −10,000 | -$236.2K | EDGAR |
| 2016-11-23 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −12,300 | -$290.4K | EDGAR |
| 2016-11-08 | Summit Materials, Inc. (SUM) Delisted | Conv (C) | +50,000 | $0 | EDGAR |
| 2016-10-26 | Summit Materials, Inc. (SUM) Delisted | Sell (S) | −17,700 | -$340.3K | 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.