About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
InterDigital, Inc. (IDCC): Insider Trades and Fund Holdings
In the past 12 months, InterDigital, Inc. insiders reported no open-market purchases and 10 sales worth $2.62M; 10 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Oct 5, 2026Insider saleCTO Rajesh Pankaj sold $501,480 under a 10b5-1 plan
- Oct 5, 2026Planned saleRAJESH PANKAJ (officer) filed notice to sell about $501,480 around Oct 5, 2026
- Sep 8, 2026Insider saleCTO Rajesh Pankaj sold $507,000 under a 10b5-1 plan
- Sep 8, 2026Planned saleRAJESH PANKAJ (officer) filed notice to sell about $507,000 around Sep 8, 2026
- Aug 7, 2026Insider saleDirector Joan H. Gillman sold $99,318 under a 10b5-1 plan (8 days after: quarterly or annual results)
- Aug 7, 2026Planned saleJOAN H GILLMAN (director) filed notice to sell about $99,318 around Aug 7, 2026
- Aug 5, 2026Insider saleCTO Rajesh Pankaj sold $487,320 under a 10b5-1 plan (6 days after: quarterly or annual results)
- Aug 5, 2026Planned saleRAJESH PANKAJ (officer) filed notice to sell about $487,320 around Aug 5, 2026
- Jul 30, 2026NewsCompany reported: Quarterly or annual results
- Jul 6, 2026Insider saleCTO Rajesh Pankaj sold $429,000 under a 10b5-1 plan
- Jun 30, 2026FundBridgewater Associates opened a position in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundFundsmith opened a position in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies sold out in Q2 2026 (13F filed Aug 13, 2026)
- Jun 22, 2026Insider saleDirector John D. Markley Jr sold $120,000 under a 10b5-1 plan
- Jun 12, 2026Insider saleDirector Derek K. Aberle sold $144,406 under a 10b5-1 plan
- Jun 12, 2026Insider saleDirector Samir Armaly sold $130,021 under a 10b5-1 plan
- Jun 12, 2026Insider saleDirector John A. Kritzmacher sold $100,974 under a 10b5-1 plan
- Jun 12, 2026Insider saleDirector Jean F. Rankin sold $100,974 under a 10b5-1 plan
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 6, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 6 | Rajesh PankajCTO | ▼ SELL10b5-1 | $501K |
| Sep 9 | Rajesh PankajCTO | ▼ SELL10b5-1 | $507K |
| Aug 10 | Joan H. GillmanDirector | ▼ SELL10b5-1 | $99K |
| Aug 7 | Rajesh PankajCTO | ▼ SELL10b5-1 | $487K |
| Jul 7 | Rajesh PankajCTO | ▼ SELL10b5-1 | $429K |
| Jun 23 | John D. Markley JrDirector | ▼ SELL10b5-1 | $120K |
| Jun 16 | Derek K. AberleDirector | ▼ SELL10b5-1 | $144K |
| Jun 16 | Samir ArmalyDirector | ▼ SELL10b5-1 | $130K |
| Jun 16 | John A. KritzmacherDirector | ▼ SELL10b5-1 | $101K |
| Jun 16 | Jean F. RankinDirector | ▼ SELL10b5-1 | $101K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Rajesh Pankaj | CTO | 0 | $0 | 4 | $1.92M |
| Joan H. Gillman | Director | 0 | $0 | 1 | $99K |
| John D. Markley Jr | Director | 0 | $0 | 1 | $120K |
| Derek K. Aberle | Director | 0 | $0 | 1 | $144K |
| Samir Armaly | Director | 0 | $0 | 1 | $130K |
| John A. Kritzmacher | Director | 0 | $0 | 1 | $101K |
| Jean F. Rankin | Director | 0 | $0 | 1 | $101K |
Buybacks and executive pay
InterDigital, Inc. spent $102.3 million buying back its own shares in 2025.
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A All 10 insider trades reported on time. How it is graded
Tracked funds that report IDCC
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Fundsmith | 60,324 | $17.1M | ▲ New |
| Bridgewater Associates | 4,343 | $1.23M | ▲ New |
| Renaissance Technologies | 0 | $0 | ▼ Sold out |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →