John Wendell Thompson
CIK 1207433 · Chairman and CEO · last filed 2026-10-02
"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.
RBRK 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
3495 DEER CREEK ROAD
PALO ALTO, CA 94304
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RBRK | Director | 26,562 | $114.48 | $3.04M | -$18.16M | 28 | 2026-10-02 |
| MSFT | Director | 28,345 | $531.23 | $15.06M | $1.00M | 91 | 2023-12-15 |
| ILMN | Director | 10,162 | $270.01 | $2.74M | $0 | 6 | 2022-05-27 |
| UPS | Director | 17,135 | $98.69 | $1.69M | $904.0K | 14 | 2013-05-03 |
| STX | Director | 193,608 | $673.92 | $130.48M | $0 | 4 | 2010-10-29 |
Recent Filings · Page 18 of 29
285 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2010-11-17 | — | Mixed | −10,000 | -$711.8K | |
| 2010-11-12 | UPS | Mixed | — | -$15.7K | EDGAR |
| 2010-11-10 | — | Mixed | −10,000 | -$707.2K | |
| 2010-11-03 | — | Mixed | −10,000 | -$657.8K | |
| 2010-10-29 | STX | Grant (A) | +16,698 | $0 | EDGAR |
| 2010-10-27 | — | Mixed | −10,000 | -$614.2K | |
| 2010-10-20 | — | Mixed | −10,000 | -$601.1K | |
| 2010-10-13 | — | Mixed | −10,000 | -$560.1K | |
| 2010-10-06 | — | Mixed | −10,000 | -$575.1K | |
| 2010-09-29 | — | Mixed | −10,000 | -$571.5K |
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.