Sigma Planning Corp
- SEC CIK
- 0001449126
- Latest filing
- Aug 7, 2026
IDCC holding history
InterDigital, Inc. in every 13F filed by Sigma Planning Corp, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
IDCC overviewAll 13F holders of IDCCFull Q2 2026 holdings
- Shares (Q2 2026)
- 4,780
- Value
- $1.35M
- % of portfolio
- <0.1%
- Quarters held
- 22
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 4,780 | $1.35M | <0.1% | −3,989−45.5% | Reduced | Holders |
| Q1 2026 | 8,769 | $2.65M | 0.1% | +448+5.4% | Added | Holders |
| Q4 2025 | 8,321 | $2.65M | 0.1% | +2,514+43.3% | Added | Holders |
| Q3 2025 | 5,807 | $2.00M | 0.1% | +676+13.2% | Added | Holders |
| Q2 2025 | 5,131 | $1.15M | <0.1% | −674−11.6% | Reduced | Holders |
| Q1 2025 | 5,805 | $1.20M | <0.1% | −237−3.9% | Reduced | Holders |
| Q4 2024 | 6,042 | $1.17M | <0.1% | −526−8.0% | Reduced | Holders |
| Q3 2024 | 6,568 | $930.2K | <0.1% | +217+3.4% | Added | Holders |
| Q2 2024 | 6,351 | $740.3K | <0.1% | +57+0.9% | Added | Holders |
| Q1 2024 | 6,294 | $670.1K | <0.1% | +3,845+157.0% | Added | Holders |
| Q4 2023 | 2,449 | $265.8K | <0.1% | −3,653−59.9% | Reduced | Holders |
| Q3 2023 | 6,102 | $489.7K | <0.1% | +193+3.3% | Added | Holders |
| Q2 2023 | 5,909 | $570.6K | <0.1% | +104+1.8% | Added | Holders |
| Q1 2023 | 5,805 | $423.2K | <0.1% | −109−1.8% | Reduced | Holders |
| Q4 2022 | 5,914 | $292.7K | <0.1% | −101−1.7% | Reduced | Holders |
| Q3 2022 | 6,015 | $243.0K | <0.1% | −340−5.4% | Reduced | Holders |
| Q2 2022 | 6,355 | $386.0K | <0.1% | +50+0.8% | Added | Holders |
| Q1 2022 | 6,305 | $402.0K | <0.1% | −50−0.8% | Reduced | Holders |
| Q4 2021 | 6,355 | $455.0K | <0.1% | −246−3.7% | Reduced | Holders |
| Q3 2021 | 6,601 | $448.0K | <0.1% | −321−4.6% | Reduced | Holders |
| Q2 2021 | 6,922 | $506.0K | <0.1% | −179−2.5% | Reduced | Holders |
| Q1 2021 | 7,101 | $451.0K | <0.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.