Joan H Gillman insider trades: InterDigital (IDCC) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Joan reports to the SEC





Open-market buys and sales
4 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 7, 2026 | IDCC | ↓ Sell | 300 | $331.06 | $99K | Direct | Aug 10, 2026 (3d) |
| Feb 11, 2026 | IDCC | ↓ Sell | 325 | $352.24 | $114K | Direct | Feb 12, 2026 (1d) |
| Jun 7, 2021 | IDCC | ↓ Sell | 1,086 | $83.24 | $90K | Direct | Jun 9, 2021 (2d) |
| Jun 27, 2013 | TWC | ↓ Sell | 6,059 | $108.00 | $654K | Direct | Jul 1, 2013 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IDCC insiders
Open-market trades in the last 12 months
About Joan H Gillman's insider trades
Joan H Gillman is a director at InterDigital (IDCC). Since Jun 27, 2013, Joan has reported no open-market purchases and 4 sales worth $959K on SEC Form 4. In the last 12 months: 2 sales ($214K).
Their filings also include grants and awards (71 filings), shares returned to the company (2 filings), option exercises (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IDCC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.