Diane L Dewbrey
CIK 1200125 · last filed 2026-05-13
Diane L Dewbrey is a corporate insider who has filed 47 SEC Form 4 insider transactions across 4 companies since 2009. The most recent filing shows the insider was granted $100.0K of MBI on May 13, 2026. Across all open-market trades the lifetime net is +$96.6K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $990.0K across reported positions. 11 SEC filings were submitted jointly with MBIA INC.
"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.
HTCO 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
PURCHASE, NY
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MBI | Director | 121,198 | $4.68 | $567.2K | -$35.6K | 10 | 2026-05-13 |
| Envoy Medical, Inc. (ANZUW) Delisted | Director | — | $0.09 | — | $0 | 1 | 2022-10-04 |
| BBSI | Director | 13,900 | $30.31 | $421.3K | $23.7K | 5 | 2022-06-09 |
| HTCO | Director | 980 | $1.56 | $1.5K | $108.4K | 27 | 2014-01-02 |
Recent Filings
47 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-13 | MBI | Grant (A) | +16,181 | $100.0K | EDGAR |
| 2025-08-25 | MBI | Sell (S) | −4,975 | -$35.6K | EDGAR |
| 2025-05-14 | MBI | Grant (A) | +23,095 | $100.0K | EDGAR |
| 2024-05-16 | MBI | Grant (A) | +16,502 | $100.0K | EDGAR |
| 2023-10-03 | — | Conv (C) | +25,000 | $0 | |
| 2023-05-16 | MBI | Grant (A) | +12,821 | $100.0K | EDGAR |
| 2022-10-04 | Envoy Medical, Inc. (ANZUW) Delisted | Other (J) | — | $0 | EDGAR |
| 2022-06-09 | BBSI | Mixed | +1,192 | $0 | EDGAR |
| 2022-05-13 | MBI | Grant (A) | +8,361 | $100.0K | EDGAR |
| 2022-03-08 | BBSI | Buy (P) | +325 | $23.7K | 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.