InterDigital, Inc.
US ˙ NasdaqGS ˙ US45867G1013

SecurityIDCC / InterDigital, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership63,131 shares
Latest Disclosed Value $ 19,067,285
Advisor Group Holdings, Inc. ownership in IDCC / InterDigital, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 63,131 shares of InterDigital, Inc. (US:IDCC) valued at $19,065,562 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 63,049 shares of InterDigital, Inc.. This represents a change in shares of 0.13% during the quarter. The current value of the position is $16,201,940 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (IDCC) in the form of stock options. The firm currently holds call options representing 1 of underlying shares valued at $11,550 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

IDCC / InterDigital, Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F INTERDIGITAL COM 45867G101 63,131 82 0.13 19,067 -5.02 0.0162
2026-02-17 2025-12-31 13F INTERDIGITAL COM 45867G101 63,049 -1,513 -2.34 20,074 -3.73 0.0293
2025-11-14 2025-09-30 13F INTERDIGITAL COM 45867G101 64,562 43,317 203.89 20,851 338.78 0.0292
2025-09-04 2025-06-30 13F/A-1 NTERDIGITAL COM 45867G101 21,245 3,949 22.83 4,753 32.89 0.0085
2025-08-13 2025-06-30 13F NTERDIGITAL COM 45867G101 18,562 1,266 3,618 0.0042
2025-05-12 2025-03-31 13F INTERDIGITAL COM 45867G101 17,296 -498 -2.80 3,576 3.74 0.0080
2025-06-06 2024-12-31 13F/A-1 INTERDIGITAL COM 45867G101 17,794 2,437 15.87 3,447 58.48 0.0077
2025-02-07 2024-12-31 13F INTERDIGITAL COM 45867G101 15,396 39 2,198 0.0056
2024-11-13 2024-09-30 13F INTERDIGITAL COM 45867G101 15,357 11,045 256.15 2,175 333.27 0.0049
2024-08-13 2024-06-30 13F INTERDIGITAL COM 45867G101 4,312 -2,206 -33.84 503 -27.56 0.0012
2024-05-10 2024-03-31 13F INTERDIGITAL COM 45867G101 6,518 -12,966 -66.55 694 -67.22 0.0015
2024-02-12 2023-12-31 13F INTERDIGITAL COM 45867G101 19,484 2,069 11.88 2,115 51.32 0.0037
2023-11-13 2023-09-30 13F INTERDIGITAL COM 45867G101 17,415 -4,413 -20.22 1,398 -33.70 0.0021
2023-08-21 2023-06-30 13F/A-1 INTERDIGITAL COM 45867G101 21,828 9,997 84.50 2,107 144.43 0.0038
2023-08-10 2023-06-30 13F INTERDIGITAL COM 45867G101 21,828 9,997 2,107 0.0006
2023-05-12 2023-03-31 13F INTERDIGITAL COM 45867G101 11,831 1,889 19.00 863 75.56 0.0016
2023-02-10 2022-12-31 13F INTERDIGITAL COM 45867G101 9,942 2,041 25.83 491 53.44 0.0010
2022-11-14 2022-09-30 13F INTERDIGITAL COM 45867G101 7,901 895 12.77 320 -24.88 0.0007
2022-08-10 2022-06-30 13F INTERDIGITAL COM 45867G101 7,006 1,255 21.82 426 18.99 0.0009
2022-05-04 2022-03-31 13F INTERDIGITAL COM 45867G101 5,751 1,133 24.53 358 8.48 0.0007
2022-02-03 2021-12-31 13F INTERDIGITAL COM 45867G101 4,618 -2,979 -39.21 330 -35.92 0.0006
2021-11-05 2021-09-30 13F INTERDIGITAL COM 45867G101 7,597 2,390 45.90 515 35.17 0.0011
2021-08-02 2021-06-30 13F INTERDIGITAL COM 45867G101 5,207 3,006 136.57 381 172.14 0.0008
2021-05-13 2021-03-31 13F INTERDIGITAL COM 45867G101 2,201 431 24.35 140 30.84 0.0003
2021-02-10 2020-12-31 13F INTERDIGITAL COM 45867G101 1,770 -338 -16.03 107 -11.57 0.0003
2020-11-12 2020-09-30 13F INTERDIGITAL COM 45867G101 2,108 153 7.83 121 9.01 0.0004
2020-08-14 2020-06-30 13F INTERDIGITAL COM 45867G101 1,955 -10,028 -83.69 111 26.14 0.0004
2020-05-18 2020-03-31 13F INTERDIGITAL COM 45867G101 11,983 11,983 88 0.0004
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F INTERDIGITAL CALL Call 1 12 n/a n/a n/a
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.