Julia C Mattis
Insider
First SEC filing: Sept. 19, 2025 · Latest: June 4, 2026
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net: $-412,240
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 15, 2026 | IDCC | F | 325 | $340.38 | $110,624 | 11,237 Direct | -2.81% | Disposed | -0.6% (price as of 2026-10-05) |
| Sept. 15, 2026 | IDCC | D | 1 | $340.38 | $340 | 11,236 Direct | -0.01% | Disposed | -0.6% (price as of 2026-10-05) |
| July 22, 2026 | IDCC | A | 24 | · | · | 11,562 Direct | +0.21% | Acquired | (price as of 2026-10-05) |
| June 3, 2026 | IDCC | S 10b5-1 | 1,600 | $257.65 | $412,240 | 11,538 Direct | -12.18% | Disposed | 31.3% (price as of 2026-10-05) |
| April 22, 2026 | IDCC | A | 16 | · | · | 13,138 Direct | +0.12% | Acquired | (price as of 2026-10-05) |
| March 31, 2026 | IDCC | A | 4,140 | · | · | 13,122 Direct | +46.09% | Acquired | (price as of 2026-10-05) |
| March 15, 2026 | IDCC | A | 2,470 | · | · | 11,027 Direct | +28.87% | Acquired | (price as of 2026-10-05) |
| March 15, 2026 | IDCC | F | 1,050 | $362.35 | $380,468 | 9,977 Direct | -9.52% | Disposed | -6.7% (price as of 2026-10-05) |
| March 15, 2026 | IDCC | D | 0 | $362.35 | · | 9,977 Direct | 0.00% | Disposed | -6.7% (price as of 2026-10-05) |
| March 15, 2026 | IDCC | F | 993 | $362.35 | $359,814 | 8,984 Direct | -9.95% | Disposed | -6.7% (price as of 2026-10-05) |
| March 15, 2026 | IDCC | D | 2 | $362.35 | $725 | 8,982 Direct | -0.02% | Disposed | -6.7% (price as of 2026-10-05) |
| Jan. 28, 2026 | IDCC | A | 16 | · | · | 8,557 Direct | +0.19% | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2025 | IDCC | A | 1,068 | · | · | 8,541 Direct | +14.29% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2025 | IDCC | A | 12 | · | · | 7,473 Direct | +0.16% | Acquired | (price as of 2026-10-05) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 19, 2025 | IDCC | Common Stock | 7,461 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $376,064 | $50,000 | · | · | $427,200 | · | $13,746 | $2,742,010 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.