David G Dewalt
CIK 1228853 · Executive Chairman · last filed 2026-08-05
"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.
FEYE 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
SCOTTSDALE, AZ 85255
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DAL | Director | 22,358 | $91.44 | $2.04M | -$2.88M | 16 | 2026-08-05 |
| HAWK | Director | 7,508,152 | $15.48 | $116.26M | $0 | 1 | 2026-05-12 |
| EXC | Director | 4,009 | $45.41 | $182.0K | $0 | 6 | 2026-04-29 |
| FIVN | Director | 205,298 | $27.93 | $5.73M | -$9.92M | 12 | 2023-05-18 |
| NightDragon Acquisition Corp. (NDACU) Delisted | Director | 1,035,000 | $10.06 | $10.41M | $10.35M | 1 | 2021-03-04 |
| FORESCOUT TECHNOLOGIES, INC (FSCT) Delisted | Director | 0 | — | — | -$18.22M | 12 | 2020-08-17 |
| Mandiant, Inc. (FEYE) Delisted | Executive Chairman | 4,359,447 | $17.27 | $75.29M | -$39.88M | 8 | 2017-01-05 |
| POLYCOM INC (PLCM) Delisted | Director | 270,483 | — | — | -$1.19M | 26 | 2013-05-20 |
| JIVE | Director | — | $94.90 | — | $0 | 1 | 2012-01-18 |
| McAfee, Inc. (MFE) Delisted | CEO, President & Director | 174,498 | — | — | -$9.56M | 14 | 2011-02-23 |
Recent Filings · Page 7 of 11
103 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-08-28 | POLYCOM INC (PLCM) Delisted | Exer (M) | +5,000 | $0 | EDGAR |
| 2012-06-18 | DAL | Grant (A) | +11,210 | $0 | EDGAR |
| 2012-05-29 | POLYCOM INC (PLCM) Delisted | Mixed | +5,000 | $0 | EDGAR |
| 2012-02-28 | POLYCOM INC (PLCM) Delisted | Exer (M) | +5,000 | $0 | EDGAR |
| 2012-01-18 | JIVE | Grant (A) | — | $0 | EDGAR |
| 2011-11-29 | POLYCOM INC (PLCM) Delisted | Exer (M) | +5,000 | $0 | EDGAR |
| 2011-11-25 | DAL | Grant (A) | +15,800 | $0 | EDGAR |
| 2011-08-26 | POLYCOM INC (PLCM) Delisted | Exer (M) | +5,000 | $0 | EDGAR |
| 2011-05-31 | POLYCOM INC (PLCM) Delisted | Mixed | +2,500 | $0 | EDGAR |
| 2011-03-02 | — | Mixed | −157,383 | -$1.31M |
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.