John A. Kritzmacher is Director at InterDigital, Inc. (IDCC). They have made 11 open-market trades across 3 companies since 2006, most recently 2026-07-22.
CIK 0001194009
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 totalling $2K since 2022, against 11 sales. 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 | 2026-06-12 | 2026-06-16 | $276.64 | $101K | -5.4% | -9.3% | +16.3% |
| IDCC | SELL · 10b5-1 | 2025-12-23 | 2025-12-23 | $331.00 | $414K | -5.5% | +1.0% | -4.7% |
| IDCC | SELL · 10b5-1 | 2025-12-09 | 2025-12-10 | $357.37 | $893K | -6.9% | -13.3% | +2.6% |
| IDCC | SELL · 10b5-1 | 2025-11-25 | 2025-11-26 | $346.62 | $433K | -0.2% | -9.1% | -0.3% |
| IDCC | SELL · 10b5-1 | 2025-11-11 | 2025-11-12 | $360.63 | $902K | -1.4% | +1.0% | +0.1% |
| IDCC | SELL · 10b5-1 | 2025-06-09 | 2025-06-11 | $226.41 | $173K | +5.9% | +1.6% | +37.9% |
| IDCC | SELL · 10b5-1 | 2024-09-20 | 2024-09-23 | $138.72 | $347K | +3.3% | +8.0% | +36.4% |
| IDCC | SELL · 10b5-1 | 2024-06-11 | 2024-06-12 | $115.28 | $177K | -1.8% | +2.8% | +11.5% |
| IDCC | SELL | 2023-06-07 | 2023-06-09 | $86.17 | $178K | +4.7% | +8.2% | -7.7% |
| IDCC | BUY | 2022-10-11 | 2023-06-21 | $47.32 | $2K | +5.0% | +2.1% | -9.9% |
| IDCC | SELL | 2022-06-06 | 2022-06-07 | $66.83 | $109K | -8.5% | -5.7% | -29.8% |
| JWA | SELL | 2021-07-14 | 2021-07-16 | $58.30 | $919K | N/A | N/A | N/A |
| JWA | SELL · 10b5-1 | 2021-06-14 | 2021-06-16 | $57.38 | $861K | N/A | N/A | N/A |
| IDCC | SELL | 2021-06-07 | 2021-06-09 | $83.24 | $181K | -6.0% | -12.6% | -13.3% |
| IDCC | SELL | 2020-07-13 | 2020-07-14 | $56.22 | $109K | +2.6% | +14.7% | +9.9% |
| IDCC | SELL | 2019-06-04 | 2019-06-04 | $64.84 | $50K | -2.9% | -0.2% | -26.3% |
| JWA | SELL · 10b5-1 | 2018-07-16 | 2018-07-18 | $67.50 | $1.0M | N/A | N/A | N/A |
| JWA | SELL · 10b5-1 | 2018-07-11 | 2018-07-13 | $65.10 | $1.4M | N/A | N/A | N/A |
| JWA | SELL | 2018-06-19 | 2018-06-20 | $66.72 | $853K | N/A | N/A | N/A |
| IDCC | SELL | 2018-06-15 | 2018-06-18 | $85.10 | $128K | -3.7% | -1.5% | -5.6% |
| IDCC | SELL | 2017-06-09 | 2017-06-12 | $84.38 | $181K | -2.5% | -7.4% | -16.1% |
| IDCC | SELL | 2016-06-13 | 2016-06-14 | $58.52 | $64K | -7.7% | -3.7% | +23.0% |
| IDCC | SELL · 10b5-1 | 2015-02-27 | 2015-02-27 | $52.56 | $105K | -6.4% | +0.1% | +0.1% |
| IDCC | SELL · 10b5-1 | 2014-10-31 | 2014-11-03 | $49.38 | $99K | -6.4% | +0.1% | +0.1% |
| IDCC | SELL · 10b5-1 | 2014-08-12 | 2014-08-13 | $43.24 | $86K | -6.4% | +0.1% | +0.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.