Joan H. Gillman is Director at InterDigital, Inc. (IDCC). They have made 1 open-market trade across 1 company since 2013, most recently 2026-08-07.
CIK 0001577360
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IDCC | SELL · 10b5-1 | 2026-08-07 | 2026-08-10 | $331.06 | $99K | -1.2% | -2.2% | — |
| IDCC | SELL · 10b5-1 | 2026-02-11 | 2026-02-12 | $352.24 | $114K | +7.0% | +1.1% | -23.7% |
| IDCC | SELL | 2021-06-07 | 2021-06-09 | $83.24 | $181K | -6.0% | -12.6% | -13.3% |
| TWC | SELL · 10b5-1 | 2013-06-27 | 2013-07-01 | $108.00 | $654K | -2.2% | -0.3% | -0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.