James Kuffner
CIK 1877346 · Chief Technology Officer · last filed 2026-10-28
James Kuffner is a Chief Technology Officer who has filed 29 SEC Form 4 insider transactions across 2 companies since 2022. The most recent filing shows the insider sold $741.9K of SYM on Oct 28, 2026. Across all open-market trades the lifetime net is −$8.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.4M across reported positions.
"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.
SYM 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
200 RESEARCH DR
WILMINGTON, MA 01887
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SYM | Chief Technology Officer | 248,580 | $37.79 | $9.39M | -$8.56M | 11 | 2026-10-28 |
| Joby Aviation, Inc. (JOBY.WS) Delisted | Director | 69,945 | $0.01 | $769 | $0 | 9 | 2023-06-23 |
Recent Filings
29 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-28 | SYM | Sell (S) | −19,399 | -$741.9K | EDGAR |
| 2026-10-27 | SYM | Notice (144) | −198 | -$7.6K | EDGAR |
| 2026-10-27 | SYM | Exer (M) | +47,923 | $0 | EDGAR |
| 2026-10-26 | SYM | Notice (144) | −19,201 | -$734.3K | EDGAR |
| 2026-08-25 | SYM | Mixed | +5,796 | -$160.4K | EDGAR |
| 2026-08-24 | SYM | Notice (144) | −3,952 | -$160.4K | EDGAR |
| 2026-07-27 | SYM | Mixed | +28,936 | -$766.7K | EDGAR |
| 2026-07-24 | SYM | Notice (144) | −18,987 | -$766.7K | EDGAR |
| 2026-05-27 | SYM | Mixed | +5,871 | -$207.5K | EDGAR |
| 2026-05-26 | SYM | Notice (144) | −3,878 | -$207.5K | 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.