David J. Tupman
CIK 1603917 · last filed 2026-07-31
"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.
CRUS 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
SAN FRANCISCO, CA 94114
Holdings By Company
Recent Filings · Page 4 of 4
40 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2017-08-03 | CRUS | Sell (S) | −1,024 | -$67.8K | EDGAR |
| 2017-08-01 | CRUS | Grant (A) | +3,056 | $0 | EDGAR |
| 2017-05-11 | PXLW | Mixed | +496 | -$32.9K | EDGAR |
| 2016-07-28 | CRUS | Mixed | +2,671 | -$60.9K | EDGAR |
| 2016-05-18 | PXLW | Sell (S) | −2,650 | -$4.5K | EDGAR |
| 2016-05-13 | PXLW | Grant (A) | +15,163 | $0 | EDGAR |
| 2015-12-08 | CRUS | Sell (S) | −1,000 | -$35.0K | EDGAR |
| 2015-08-11 | CRUS | Exer (M) | +2,500 | $0 | EDGAR |
| 2015-07-31 | CRUS | Grant (A) | — | $0 | EDGAR |
| 2015-05-14 | PXLW | Grant (A) | +6,626 | $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.