H Brian Thompson
CIK 1086564 · Executive Chairman · last filed 2025-12-18
H Brian Thompson is an Executive Chairman who has filed 148 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for PAG, was dated Dec 18, 2025. Across all open-market trades the lifetime net is +$2.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $27.7M across reported positions.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
GTT price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
VIENNA, VA 22182
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PAG | Director | 118,008 | $212.30 | $25.05M | $194.1K | 20 | 2025-12-18 |
| GTT Communications, Inc. (GTT) Delisted | Director | 6,879,918 | $2.36 | $16.24M | $1.72M | 19 | 2020-10-01 |
| Pendrell Corp (PCO) Delisted | Director | 238 | — | — | $9.7K | 24 | 2017-10-03 |
| Sonus, Inc. (SONS) Delisted | Director | 47,314 | — | — | $28.0K | 11 | 2015-06-16 |
| ACLS | Director | 28,546 | $92.14 | $2.63M | $96.6K | 13 | 2014-07-17 |
| Pendrell Corp (ICOG) Delisted | Director | — | — | — | $0 | 5 | 2010-10-05 |
| PENSKE AUTOMOTIVE GROUP, INC. (UAG) Delisted | Director | 34,894 | — | — | $0 | 1 | 2007-03-05 |
Recent Filings
148 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-12-18 | PAG | Grant (A) | +1,801 | $0 | EDGAR |
| 2024-12-13 | PAG | Grant (A) | +1,850 | $0 | EDGAR |
| 2023-12-15 | PAG | Grant (A) | +1,941 | $0 | EDGAR |
| 2022-12-16 | PAG | Grant (A) | +2,455 | $0 | EDGAR |
| 2021-12-17 | PAG | Grant (A) | +2,948 | $0 | EDGAR |
| 2021-07-09 | — | Tax (F) | −5,436 | -$13.2K | |
| 2020-12-11 | PAG | Grant (A) | +4,319 | $18.8K | EDGAR |
| 2020-10-01 | GTT Communications, Inc. (GTT) Delisted | Tax (F) | −5,592 | -$45.6K | EDGAR |
| 2020-07-20 | GTT Communications, Inc. (GTT) Delisted | Grant (A) | +18,618 | $0 | EDGAR |
| 2020-07-06 | GTT Communications, Inc. (GTT) Delisted | Grant (A) | +43,970 | $0 | EDGAR |
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.