Insider · CIK 0001491492
John D. Markley Jr.
Files at IDCC (InterDigital, Inc.). First filing Jun 18, 2025, latest Jun 23, 2026.
In brief
John D. Markley Jr. files SEC Form 4 as director at IDCC (InterDigital, Inc.). Since Jun 18, 2025, John D. Markley Jr. has reported 0 open-market buys worth $0 and 3 open-market sells worth $689k, the latest filed on Jun 23, 2026.
A track record needs three past buys with six months of prices behind them; John D. Markley Jr. has 0, so none is measured yet.
The newest scored trade: sold $120k of IDCC on Jun 22, 2026, filed Jun 23, 2026, scored 20 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 2 sells worth $382k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
IDCC: InterDigital, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 20Weak | InterDigital, Inc. | $120k 400 shares | -3% | +36% from low-25% from high | |
| 23Weak | InterDigital, Inc. | $262k 700 shares | -6% | +93% from low-11% from high | |
| 29Weak | InterDigital, Inc. | $306k 1,384 shares | -10% | +69% from low-3% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jun 22, 2026 | IDCC INTERDIGITAL, INC. | 400 0.00% of outstanding | $120k | Jun 22, 2026 | none |
| Feb 10, 2026 | IDCC INTERDIGITAL, INC. | 700 0.00% of outstanding | $262k | Feb 10, 2026 | none |
| Jun 18, 2025 | IDCC INTERDIGITAL, INC. | 692 0.00% of outstanding | $154k | Jun 18, 2025 | $153k |
| Jun 17, 2025 | IDCC INTERDIGITAL, INC. | 692 0.00% of outstanding | $153k | Jun 17, 2025 | none |
Transactions
Every row this insider has filed, 16 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 22, 2026 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +9 | $0.00 | $0 | 11,743 | Jul 24, 2026 |
| Jun 22, 2026 | IDCC InterDigital, Inc. | SOpen-market sale Common Stock10b5-1 | -400 | $300.00 | $120k | 11,735 | Jun 23, 2026 |
| Jun 10, 2026 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +906 | $0.00 | $0 | 12,136 | Jun 12, 2026 |
| Jun 11, 2026 | IDCC InterDigital, Inc. | DDisposition to issuer Common Stock | -1 | $253.91 | $219 | 12,135 | Jun 12, 2026 |
| Apr 22, 2026 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +6 | $0.00 | $0 | 11,230 | Apr 24, 2026 |
| Feb 10, 2026 | IDCC InterDigital, Inc. | SOpen-market sale Common Stock10b5-1 | -700 | $374.95 | $262k | 11,223 | Feb 12, 2026 |
| Jan 28, 2026 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +7 | $0.00 | $0 | 11,923 | Jan 30, 2026 |
| Oct 22, 2025 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +6 | $0.00 | $0 | 11,916 | Oct 24, 2025 |
| Jul 23, 2025 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +9 | $0.00 | $0 | 11,910 | Jul 25, 2025 |
| Jun 17, 2025 | IDCC InterDigital, Inc. | SOpen-market sale Common Stock10b5-1 | -692 | $220.62 | $153k | 12,593 | Jun 18, 2025 |
| Jun 18, 2025 | IDCC InterDigital, Inc. | SOpen-market sale Common Stock10b5-1 | -692 | $222.00 | $154k | 11,901 | Jun 18, 2025 |
| Jun 11, 2025 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +1,036 | $0.00 | $0 | 13,285 | Jun 13, 2025 |
| Jun 5, 2025 | IDCC InterDigital, Inc. | DDisposition to issuer Common Stock | -1 | $223.51 | $152 | 12,249 | Jun 9, 2025 |
| Apr 23, 2025 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +13 | $0.00 | $0 | 12,250 | Apr 25, 2025 |
| Jan 22, 2025 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +10 | $0.00 | $0 | 12,237 | Jan 24, 2025 |
| Oct 23, 2024 | IDCC InterDigital, Inc. | AGrant or award Common Stock | +12 | $0.00 | $0 | 12,227 | Oct 25, 2024 |
Questions about John D. Markley Jr.
Answered from the filings on this page, as of the latest one.
Is John D. Markley Jr. buying or selling?
In the last 12 months John D. Markley Jr. reported 0 open-market buys worth $0 and 2 open-market sells worth $382k on SEC Form 4; the latest was sold $120k of IDCC on Jun 22, 2026. Grants, option exercises and tax withholding are not counted.
How did John D. Markley Jr.'s past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John D. Markley Jr. has 0.
Where does John D. Markley Jr. file Form 4?
John D. Markley Jr. has filed Form 4 at IDCC (InterDigital, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.