KRITZMACHER JOHN A (CIK 1194009) reported 20 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-16). Recent activity: Sell IDCC (365 shares), Buy IDCC (906 shares), Sell IDCC (1 shares), Buy IDCC (2 shares), Buy UIS (82,305 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | InterDigital, Inc. (IDCC) | Director | Sell | 365 | $100,974 |
| 2026-06-12 | InterDigital, Inc. (IDCC) | Director | Buy | 906 | $0 |
| 2026-06-12 | InterDigital, Inc. (IDCC) | Director | Sell | 1 | $219 |
| 2026-04-24 | InterDigital, Inc. (IDCC) | Director | Buy | 2 | $0 |
| 2026-03-02 | UNISYS CORP (UIS) | Director | Buy | 82,305 | $0 |
| 2026-01-30 | InterDigital, Inc. (IDCC) | Director | Buy | 2 | $0 |
| 2025-12-23 | InterDigital, Inc. (IDCC) | Director | Sell | 1,250 | $413,750 |
| 2025-12-10 | InterDigital, Inc. (IDCC) | Director | Sell | 1,250 | $446,712 |
| 2025-11-26 | InterDigital, Inc. (IDCC) | Director | Sell | 1,250 | $433,275 |
| 2025-11-12 | InterDigital, Inc. (IDCC) | Director | Sell | 1,250 | $450,788 |
| 2025-10-24 | InterDigital, Inc. (IDCC) | Director | Buy | 2 | $0 |
| 2025-07-25 | InterDigital, Inc. (IDCC) | Director | Buy | 3 | $0 |
| 2025-06-13 | InterDigital, Inc. (IDCC) | Director | Buy | 1,036 | $0 |
| 2025-06-11 | InterDigital, Inc. (IDCC) | Director | Sell | 243 | $54,889 |
| 2025-06-11 | InterDigital, Inc. (IDCC) | Director | Sell | 200 | $45,354 |
| 2025-06-11 | InterDigital, Inc. (IDCC) | Director | Sell | 76 | $17,390 |
| 2025-06-09 | InterDigital, Inc. (IDCC) | Director | Sell | 1 | $152 |
| 2025-04-25 | InterDigital, Inc. (IDCC) | Director | Buy | 5 | $0 |
| 2025-02-26 | UNISYS CORP (UIS) | Director | Buy | 44,643 | $0 |
| 2025-01-24 | InterDigital, Inc. (IDCC) | Director | Buy | 4 | $0 |
Source: SEC Form 4 filings · as of 2026-06-16