| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
John D. Markley Jr. is Director at IDCC. John D. Markley Jr.'s net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $3.7M at current prices.
Historically, John D. Markley Jr.'s trades have earned a below-average insider score of 43/100 across 9 rated trades. Over a 12-month horizon, 14.3% of those trades were profitable, with an average 12-month return of -35.0%.
The IDCC filings lean toward selling, a net 12,558 shares.
John D. Markley Jr. has 64 Form 4 filings on record from June 2017 to October 2026, all as Director at InterDigital (IDCC), 2017–2026.
The 72 reported transactions were 49 stock awards, 13 open-market sales and 10 dispositions back to the company.
Counted by filing, the open-market trades come to no purchases and 12 sales worth about $1.5M.
The largest open-market sale was 4,274 shares of IDCC at an average $73.86 on February 27, 2023, about $316K. Twelve months later IDCC was up 45%.
4 of the 5 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other was not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 22, 2026 | IDCC Interdigital, Inc. | Director | Sell10b5-1 | 400 | $300.00 | $120,000.00 | -3.3% | +9.7% | - | |
| Feb 10, 2026 | IDCC Interdigital, Inc. | Director | Sell10b5-1 | 700 | $374.95 | $262,465.00 | -5.9% | -23.2% | - | |
| Jun 18, 2025 | IDCC Interdigital, Inc. | Director | Sell10b5-1 | 1,384 | $221.31 | $306,293.04 | -10.4% | +43.9% | +31.7% | |
| Jun 11, 2024 | IDCC Interdigital, Inc. | Director | Sell10b5-1 | 750 | $115.28 | $86,460.00 | -5.8% | +12.4% | +91.2% | |
| Jun 7, 2023 | IDCC Interdigital, Inc. | Director | Sell | 1,100 | $86.17 | $94,787.00 | -10.9% | -4.0% | +35.5% | |
| Feb 27, 2023 | IDCC Interdigital, Inc. | Director | Sell | 4,274 | $73.86 | $315,677.64 | -29.8% | +11.9% | +45.5% | |
| Jun 6, 2022 | IDCC Interdigital, Inc. | Director | Sell | 800 | $66.83 | $53,464.00 | -5.3% | -29.6% | +31.1% | |
| Jun 7, 2021 | IDCC Interdigital, Inc. | Director | Sell | 800 | $83.24 | $66,592.00 | -6.2% | -16.1% | -18.9% | |
| Jul 17, 2020 | IDCC Interdigital, Inc. | Director | Sell | 700 | $57.97 | $40,579.00 | -6.3% | - | - | |
| Jun 4, 2019 | IDCC Interdigital, Inc. | Director | Sell | 600 | $64.84 | $38,904.00 | -10.1% | - | - |