Mark P Marron
CIK 1240888 · CHIEF EXECUTIVE OFFICER · last filed 2026-07-02
"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.
PLUS 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
13595 DULLES TECHNOLOGY DR
HERNDON, VA 20171
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PLUS | CHIEF EXECUTIVE OFFICER | 226,073 | $95.06 | $21.49M | -$11.75M | 80 | 2026-07-02 |
Recent Filings · Page 3 of 8
80 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-10-06 | PLUS | Sell (S) | −6,250 | -$644.7K | EDGAR |
| 2021-07-22 | PLUS | Sell (S) | −5,436 | -$489.3K | EDGAR |
| 2021-07-20 | PLUS | Sell (S) | −814 | -$73.3K | EDGAR |
| 2021-06-17 | PLUS | Mixed | +16,964 | -$346.7K | EDGAR |
| 2021-06-15 | PLUS | Tax (F) | −4,662 | -$426.8K | EDGAR |
| 2021-04-07 | PLUS | Sell (S) | −6,250 | -$621.3K | EDGAR |
| 2021-01-06 | PLUS | Sell (S) | −1,134 | -$102.1K | EDGAR |
| 2021-01-05 | PLUS | Mixed | −7,991 | -$460.6K | EDGAR |
| 2020-06-17 | PLUS | Mixed | +10,944 | -$1.00M | EDGAR |
| 2020-06-10 | PLUS | Tax (F) | −2,006 | -$152.9K | 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.