InterDigital, Inc.
US ˙ NasdaqGS ˙ US45867G1013

SecurityIDCC / InterDigital, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership42,215 shares
Latest Disclosed Value $ 13,442,077
Sei Investments Co reports 2.17% decrease in ownership of IDCC / InterDigital, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 42,215 shares of InterDigital, Inc. (US:IDCC) valued at $13,440,412 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 43,152 shares of InterDigital, Inc.. This represents a change in shares of -2.17% during the quarter. The current value of the position is $10,834,058 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F INTERDIGITAL COM 45867G101 42,215 -937 -2.17 13,442 -9.78 0.0133
2025-11-13 2025-09-30 13F INTERDIGITAL COM 45867G101 43,152 5,881 15.78 14,899 78.30 0.0160
2025-08-14 2025-06-30 13F INTERDIGITAL COM 45867G101 37,271 -8,345 -18.29 8,357 -11.39 0.0097
2025-05-14 2025-03-31 13F/A-1 INTERDIGITAL COM 45867G101 45,616 8,995 24.56 9,431 32.95 0.0121
2025-05-13 2025-03-31 13F INTERDIGITAL COM 45867G101 38,611 1,990 7,929 0.0086
2025-02-11 2024-12-31 13F INTERDIGITAL COM 45867G101 36,621 14,683 66.93 7,094 128.29 0.0091
2024-11-12 2024-09-30 13F INTERDIGITAL COM 45867G101 21,938 3,436 18.57 3,107 44.11 0.0040
2024-08-13 2024-06-30 13F INTERDIGITAL COM 45867G101 18,502 0 0.00 2,157 9.50 0.0031
2024-05-07 2024-03-31 13F INTERDIGITAL COM 45867G101 18,502 -7,378 -28.51 1,970 -29.90 0.0029
2024-02-14 2023-12-31 13F INTERDIGITAL COM 45867G101 25,880 1,906 7.95 2,809 46.07 0.0045
2023-11-14 2023-09-30 13F INTERDIGITAL COM 45867G101 23,974 -7,525 -23.89 1,924 -36.76 0.0035
2023-08-11 2023-06-30 13F INTERDIGITAL COM 45867G101 31,499 -5,744 -15.42 3,041 12.01 0.0053
2023-05-12 2023-03-31 13F INTERDIGITAL COM 45867G101 37,243 2,172 6.19 2,715 56.48 0.0050
2023-02-10 2022-12-31 13F INTERDIGITAL COM 45867G101 35,071 5,938 20.38 1,735 47.41 0.0039
2022-11-14 2022-09-30 13F INTERDIGITAL COM 45867G101 29,133 29,133 1,177 0.0026
2019-08-14 2019-06-30 13F INTERDIGITAL COM 45867G101 0 -558 -100.00 0 -100.00
2019-05-15 2019-03-31 13F INTERDIGITAL COM 45867G101 558 558 36 0.0001
2018-11-08 2018-09-30 13F INTERDIGITAL COM 45867G101 0 -2,506 -100.00 0 -100.00
2018-08-03 2018-06-30 13F INTERDIGITAL COM 45867G101 2,506 605 31.83 203 45.00 0.0007
2018-05-11 2018-03-31 13F INTERDIGITAL COM 45867G101 1,901 1,844 3,235.09 140 3,400.00 0.0005
2018-02-08 2017-12-31 13F INTERDIGITAL COM 45867G101 57 52 1,040.00 4 0.0000
2017-11-06 2017-09-30 13F INTERDIGITAL COM 45867G101 5 -601 -99.17 0 -100.00
2017-07-31 2017-06-30 13F INTERDIGITAL COM 45867G101 606 606 47 0.0002
2016-05-10 2016-03-31 13F/A-1 DIREXION SHS ETF TR COM 45867G101 0 0 0 0.0000
2016-02-03 2015-12-31 13F DIREXION SHS ETF TR COM 45867G101 0 -6,338 -100.00 0 -100.00
2015-11-02 2015-09-30 13F/A-1 INTERDIGITAL COM 45867G101 6,338 6,338 321 0.0029
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 45867G101 6,338 321
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.