UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
 
FORM 11-K
 
FOR ANNUAL REPORTS OF EMPLOYEE STOCK
PURCHASE, SAVINGS AND SIMILAR PLANS
PURSUANT TO SECTION 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
   
þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2021
OR
   
o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission File Number 001-33579
A. Full title of the plan and the address of the plan, if different from that of the issuer named below:
INTERDIGITAL
SAVINGS AND PROTECTION PLAN
B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:
INTERDIGITAL, INC.
200 Bellevue Parkway, Suite 300, Wilmington, DE 19809-3727

 
 
 







INTERDIGITAL
SAVINGS AND PROTECTION PLAN
C O N T E N T S







REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Audit Committee and Plan Participants of
the InterDigital Savings and Protection Plan

Opinion on the Financial Statements
We have audited the accompanying statements of net assets available for benefits of the InterDigital Savings and Protection Plan (the Plan) as of December 31, 2021 and 2020, and the related statements of changes in net assets available for benefits for the years then ended, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2021 and 2020, and the changes in net assets available for benefits for the years then ended, in conformity with accounting principles generally accepted in the United States of America.
Basis for Opinion
These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on the Plan’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion.
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Supplemental Information
The supplemental information contained in the schedule of assets held at end of year and schedule of delinquent participant contributions for the year ended December 31, 2021 has been subjected to audit procedures performed in conjunction with the audit of the Plan's financial statements. The supplemental information is the responsibility of the Plan's management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as a whole.


/s/ Morison Cogen LLP

We have served as the Plan’s auditor since 2004.

Blue Bell, Pennsylvania
June 23, 2022
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INTERDIGITAL
SAVINGS AND PROTECTION PLAN
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
DECEMBER 31, 2021 AND 2020
  December 31,
  2021 2020
Investments at fair value (see Note 3) $130,162,447  $122,486,181 
Cash 313,706  235,691 
Contributions receivable58,767 255,867 
Notes receivable from participants 220,269  259,936 
NET ASSETS AVAILABLE FOR BENEFITS $130,755,189  $123,237,675 
The accompanying notes are an integral part of these financial statements.


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INTERDIGITAL
SAVINGS AND PROTECTION PLAN
STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE YEARS ENDED DECEMBER 31, 2021 AND 2020
 December 31,
 2021 2020
ADDITIONS   
Investment income:   
Dividend income$2,080,805  $1,572,874 
Interest from notes receivable from participants5,231  16,906 
Net increase in fair value of investments15,374,593  14,721,043 
Total investment income17,460,629  16,310,823 
CONTRIBUTIONS   
Employer1,159,618  1,265,648 
Participants3,790,906  3,905,927 
Rollover1,223,748  208,815 
Total contributions6,174,272  5,380,390 
TOTAL ADDITIONS23,634,901  21,691,213 
DEDUCTIONS   
Payment of benefits15,915,806  13,248,582 
Other deductions201,581  185,163 
TOTAL DEDUCTIONS16,117,387  13,433,745 
  
NET INCREASE7,517,514  8,257,468 
NET ASSETS AVAILABLE FOR BENEFITS - BEGINNING OF YEAR123,237,675  114,980,207 
NET ASSETS AVAILABLE FOR BENEFITS - END OF YEAR$130,755,189  $123,237,675 
The accompanying notes are an integral part of these financial statements.


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INTERDIGITAL
SAVINGS AND PROTECTION PLAN
NOTES TO FINANCIAL STATEMENTS

NOTE 1 - DESCRIPTION OF THE PLAN
The following description of the InterDigital Savings and Protection Plan (the “Plan”) is provided for general information purposes. Plan participants should refer to the Plan document and Summary Plan Description for a more complete description of the Plan's provisions.
General
The Plan is a defined contribution 401(k) plan of InterDigital, Inc. and its participating subsidiaries (the “Company” or “InterDigital”) for its eligible employees. An eligible employee will be eligible to participate in the Plan in the next payroll period, or as soon as administratively possible, following the date the eligible employee attained age 18 and completed one month of service with the Company.
The following individuals are not eligible to participate in the Plan: (i) part-time, temporary or seasonal employees with less than 1,000 hours of service; (ii) employees covered by collective bargaining agreements; (iii) leased employees within the meaning of IRC Sections 414(n)(2) and 414(o)(2); (iv) nonresident aliens who receive no earned income that constituted income from sources within the United States; and (v) employees of an affiliate of the Company that has not affirmatively adopted the Plan.
The Plan was established effective February 1, 1985. Most recently, the Plan was amended and restated as part of the adoption of the Transamerica Retirement Solutions, LLC ("Transamerica") Non-Standardized Pre-Approved Profit Sharing Plan effective January 1, 2022. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). State Street Bank & Trust Company is the trustee of the Plan and custodian of plan assets. Transamerica is the third-party administrator of the Plan's assets.
Additionally, on March 27, 2020 the Coronavirus Aid Relief and Economic Security Act ("CARES Act") was signed into law. Plan management has adopted the CARES Act distribution provision, which allows the Plan's participants to take a COVID-19 related distribution of up to $100,000 without penalty before December 31, 2020. Plan participants were notified of any additional Plan amendments as a result of the CARES Act.
In response to the Setting Every Community Up for Retirement Enhancement Act (the “SECURE Act”) which was signed into law on December 19, 2019, effective January 1, 2020, the Plan increased from age 70-1/2 to age 72 the date when terminated participants must begin receiving required minimum distributions from the Plan, and accelerated the time in which most non-spousal designated beneficiaries of deceased participants must receive their full benefits to no later than ten calendar years following the year of the participant’s death.
Contributions
Participant contributions are made on a pre-tax basis and/or an after-tax basis. Each participant may invest from 1% to 100% of eligible compensation as a basic contribution subject to state, local, and certain Federal taxes. The total earnings contributions cannot exceed Internal Revenue Service (“IRS”) limitations for each Plan year. In both the 2021 and 2020 Plan years, such limit was $19,500. Participants who have attained the age of 50 before the end of the Plan year are eligible to make catch-up contributions. In both 2021 and 2020, the maximum additional annual contribution was $6,500. If a participant's annual contributions exceed the dollar limitation set by the IRS, thereby requiring a distribution of such excess contributions, the participant will forfeit any employer matching contributions related to the distribution amount. Amounts forfeited will be used by the Company to reduce future employer matching contributions.
The Company contributes to the Plan through matching contributions and may contribute to the Plan through discretionary employer contributions. The Company matches 50% of the first 6% of each participant's eligible earnings contributed to the Plan. There were no discretionary employer contributions made for the Plan years ended December 31, 2021 and December 31, 2020. The Plan provides for annualized matching contributions, thereby allowing for true-ups to be made to ensure participants receive the maximum matching contributions irrespective of contribution timing.
The IRS limits the amount of pay that may be used to determine participants' discretionary contributions. The limits were $290,000 and $285,000 in 2021 and 2020, respectively. The IRS also limits the amount of all contributions that can be made for or by a participant to all Plans in a given year. The limits were the lesser of 100% of pay or $58,000 in 2021 and the lesser of 100% of pay or $57,000 in 2020.
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Employee rollover contributions from other qualified retirement plans are permitted; such contributions are subject to the conditions and procedures set forth in the Plan.
Participant Accounts
Each participant's account is credited with that participant's contributions, allocations of the Company's matching contributions, discretionary employer contributions, if any, and Plan earnings and losses. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Terminated participants forfeit unvested Company contributions. Forfeitures are used to reduce future employer matching contributions.
Vesting
Rollover contributions and participants' before and after-tax contributions are 100% vested and nonforfeitable. Plan participants who were credited with an Hour of Service (as defined in the Plan) shall be vested in their discretionary matching and employer contributions as follows:
Periods of Service Percentage
Less than 1 year — %
At least 1, less than 2 years 33 %
At least 2, less than 3 years 67 %
3 or more years 100 %
Participants who die while an employee of InterDigital or retire at their normal retirement age (age 65) are 100% vested in their account, regardless of their length of service.
Notes Receivable from Participants
Any participant who is an active employee may apply for a secured loan provided the request does not exceed the lesser of 50% of their vested account balance or $50,000. The minimum loan amount is $500. Only one loan per participant may be made every 365 days and all loans are subject to approval by the Company as Plan Administrator. Loan terms are limited to five years set at the inception of each loan. Interest rates are set at an annual rate of prime + 1%. The rate on all outstanding loans on December 31, 2021 and 2020 was between 4.25% and 6.50%. Interest paid by the participant is credited to the participant's account. If a participant's balance remains unpaid for more than 90 days after it is due, the loan will be in default on the outstanding loan amount and the participant's vested account will be reduced by the amount of the unpaid principal and interest. The unpaid amount is treated as a taxable withdrawal and is subject to federal income taxes. Loans in default, in principal plus interest that were reclassified to distributions, amounted to $18,487 and $0 for the years ended December 31, 2021 and 2020, respectively. Participants may continue to make scheduled loan payments after the participant ceases to be an employee or party-in-interest as defined by ERISA.
When a participant receives a distribution from the Plan, any outstanding principal plus accrued interest will be deducted from the amount of the distribution. A participant may then either default on the loan or make arrangements to continue loan repayments beyond when they become entitled to a distribution as long as their remaining interest in the Plan exceeds their outstanding loan balance.
Payment of Benefits
If a participant retires, dies, becomes permanently disabled, or otherwise separates from the Company, the participant or participant's beneficiary, as applicable, is entitled to the vested amount of their account as valued on the applicable valuation date. In the event of a participant's death, distribution of their account will be made as soon as administratively practicable upon the receipt of appropriate documentation from their designated beneficiary. Distributions for reasons of retirement, permanent disability or termination will be made upon written request. Distributions from a participant's account are made in a single lump sum payment. Employees may defer payment of their account under the Plan.
Plan Termination
The Company may amend or suspend the Plan and may terminate the Plan at any time subject to the provisions of ERISA; although there is no present intent to do so. However, no such action may cause the Plan's assets to be used for purposes other than the exclusive benefit of the participants and their beneficiaries. If the Plan is terminated, all such participants' accounts shall become fully vested and all accounts of participants shall be distributed as soon as administratively possible.
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Investment Options
All investments are participant-directed including the Company matching contributions and any discretionary employer contributions. Fund descriptions below were obtained from fund brochures and other Plan documents:
AGGRESSIVE BONDS:
BlackRock High Yield Institutional Bond Fund
The investment seeks to maximize total return, consistent with income generation and prudent investment management. The fund invests primarily in non-investment grade bonds with maturities of ten years or less.
INTERMEDIATE/LONG-TERM BONDS:
Dodge & Cox Income Fund
The investment seeks a high and stable rate of current income, consistent with long-term preservation of capital. The fund invests in a diversified portfolio of bonds and other debt securities.
Vanguard Total Bond Market Index Admiral Fund
The investment seeks to provide investment results that correspond to the performance of Bloomberg Barclays U.S. Aggregate Float Adjusted Index. Bloomberg Barclays U.S. Aggregate Float Adjusted Index represents a wide spectrum of public, investment-grade, taxable, fixed-income securities in the United States, including government, corporate, and international dollar-denominated bonds, as well as mortgage-backed and asset-backed securities, all with maturities of more than one year.
LARGE-CAP STOCKS:
T. Rowe Price Institutional Large Cap Core Growth Fund
The investment seeks to provide long-term capital growth through investments in the common stocks of large-cap growth companies.
Fidelity 500 Index Fund
The investment seeks to provide investment results that correspond to the total return performance of common stocks publicly traded in the United States. The fund normally invests at least 80% of assets in common stocks included in the S&P 500® Index, which broadly represents the performance of common stocks publicly traded in the United States.
Vanguard Equity-Income Fund Admiral
The investment seeks to provide an above-average level of current income and reasonable long-term capital appreciation. The fund seeks to achieve its objective by investing mainly in common stocks of mid-size and large companies whose stocks typically pay above-average levels of dividend income and are, in the opinion of the purchasing advisor, undervalued relative to other stocks.
Vanguard 500 Index Fund Admiral
The investment seeks to track the performance of a benchmark index that measures the investment return of large-capitalization stocks. The fund seeks to achieve its objective by employing an indexing investment approach designed to track the performance of the Standard & Poor's 500 Index. The Plan's position in this fund was liquidated during 2021.
SMALL/MID-CAP STOCKS:
American Century Mid Cap Value R6 Fund
The investment seeks long-term capital growth; income is a secondary consideration. Under normal market conditions, the portfolio managers will invest at least 80% of the fund's net assets in medium size companies.
Delaware Small Cap Value Institutional Fund
The investment seeks capital appreciation. Under normal circumstances, at least 80% of the fund's net assets, plus the amount of any borrowings for investment purposes, will be in investments of small-capitalization companies. The fund invests primarily in small companies whose stock prices, in the portfolio managers' opinion, appear low relative to their underlying value or future potential.
6


BNY Mellon Small/Mid Cap Growth Fund Class I
The investment seeks long-term growth of capital. To pursue its goal, the fund normally invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities of small-cap and mid-cap U.S. companies.
ClearBridge Small Cap Growth IS Fund
The investment seeks long-term growth of capital. The fund normally invests at least 80% of its assets in equity securities of companies with small market capitalizations and related investments.
Vanguard Small Cap Index I Fund
The investment seeks to track the performance of the CRSP US Small Cap Index that measures the investment return of small-capitalization stocks. The fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies.
Vanguard Real Estate Index Admiral Fund
The investment seeks to provide a high level of income and moderate long-term capital appreciation by tracking the performance of the MSCI US Investable Market Real Estate 25/50 Index that measures the performance of publicly traded equity REITs and other real estate-related investments.
Federated Hermes MDT Small Cap Growth Institutional Fund
The investment seeks long-term capital appreciation. The fund invests primarily in the common stock of small U.S. companies. The investment strategy utilizes a small capitalization growth approach by selecting most of its investments from companies listed in the Russell 2000 Growth Index. The Plan's position in this fund was liquidated during 2021.
Vanguard Small Cap Index Fund Admiral
The investment seeks to track the performance of a benchmark index that measures the investment return of small-capitalization stocks. The fund employs an indexing investment approach designed to track the performance of the CRSP U.S. Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Plan's position in this fund was liquidated during 2021.
Invesco Real Estate R5 Fund
The investment seeks high total return through growth of capital and current income. It primarily invests in equity securities. The fund may invest in equity and debt securities of issuers unrelated to the real estate industry that the portfolio managers believe are undervalued and have potential for growth of capital. It may invest in non-investment grade debt securities of real estate and real estate-related issuers. The Plan's position in this fund was liquidated during 2021.
INTERNATIONAL STOCKS:
American Funds EuroPacific Growth R5 Fund
The investment seeks to provide long-term growth of capital. The fund invests primarily in common stock of issuers in Europe and the Pacific Basin that the investment adviser believes have the potential for growth.
Allsprings Advantage Emerging Markets Equity Fund
The investment seeks long-term capital appreciation. The fund normally invests at least 80% of its net assets in emerging market equity securities. It invests principally in equity or other listed securities of emerging market companies.
MULTI-ASSET/OTHER:
Vanguard Target Retirement 2020 Fund
The investment seeks to provide capital appreciation and current income consistent with its current asset allocation. The fund primarily invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the work force in or within a few years of 2020 (the target year).
7


Vanguard Target Retirement 2030 Fund
The investment seeks to provide capital appreciation and current income consistent with its current asset allocation. The fund primarily invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the work force in or within a few years of 2030 (the target year).
Vanguard Target Retirement 2040 Fund
The investment seeks to provide capital appreciation and current income consistent with its current asset allocation. The fund primarily invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the work force in or within a few years of 2040 (the target year).
Vanguard Target Retirement 2050 Fund
The investment seeks to provide capital appreciation and current income consistent with its current asset allocation. The fund primarily invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the work force within a few years of 2050 (the target year).
Vanguard Target Retirement 2060 Fund
The investment seeks to provide capital appreciation and current income consistent with its current asset allocation. The fund primarily invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the work force within a few years of 2060 (the target year).
Vanguard Target Retirement Income Investment Fund
The investment seeks to provide current income and some capital appreciation. The fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors currently in retirement.
INTERDIGITAL STOCK FUND:
This fund invests in the common stock of InterDigital, Inc.
STABLE POOLED FUND:
This fund seeks to provide positive income with reduced return volatility through investment in a diversified portfolio of high-quality fixed income securities. The fund invests in stable value fixed income instruments, including Guaranteed Investment Contracts (“GICs”), Bank Investment Contracts (“BICs”), as well as GIC alternatives, such as synthetic GICs.
NOTE 2 - SUMMARY OF ACCOUNTING POLICIES
The following accounting policies, which conform with accounting principles generally accepted in the United States of America (“GAAP”), have been used consistently in the preparation of the Plan's financial statements.
Basis of Accounting
Accounting records are maintained by the custodian on the cash basis of accounting. The financial statements of the Plan reflect all material adjustments to place the financial statements on the accrual basis of accounting.
Use of Estimates
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as reported amounts of additions and deductions during the reporting period. Actual results could differ from those estimates.
Investment Valuation and Income Recognition
Investments are reported at fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. See Note 3 for discussion of fair value measurements.
Purchases and sales of investments are recorded on a trade-date basis. Interest income is accrued when earned. Dividend income is recorded on the ex-dividend date. Capital gain distributions are included in dividend income.
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Notes Receivable from Participants
Notes receivable from participants are measured at their unpaid principal balance plus any accrued but unpaid interest. Interest income is recorded on the accrual basis. Related fees are recorded as administrative expenses and are expensed when they are incurred. No allowance for credit losses has been recorded as of December 31, 2021 or December 31, 2020. If a participant ceases to make loan repayments and the Plan administrator deems the participant loan to be in default, the participant loan balance is reduced, and a benefit payment is recorded.
Payment of Benefits
Benefits are recorded when paid.
Forfeited Accounts
In 2021 and 2020, there were $0 and $1,622, respectively, of total forfeited non-vested account balances used to reduce plan expenses. On December 31, 2021 and 2020, forfeited non-vested accounts totaled $145,093 and $88,729, respectively.
Recently Issued Accounting Pronouncements Not Yet Adopted
As of December 31, 2021, there were no recently issued accounting standards not yet adopted which are expected to have a material effect on the Plan's financial statements.
NOTE 3 - FAIR VALUE MEASUREMENTS
The framework for measuring fair value provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy under FASB ASC 820 are described as follows:
Level 1
Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access.
Level 2
Inputs to the valuation methodology include:
-Quoted prices for similar assets or liabilities in active markets;
-Quoted prices for identical or similar assets or liabilities in inactive markets;
-Inputs other than quoted prices that are observable for the asset or liability; and
-Inputs that are derived principally from or corroborated by observable market data by correlation or other means.
If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.
Level 3
Inputs to the valuation methodology are unobservable and significant to the fair value measurement.
The asset's or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes in the methodologies used on December 31, 2021 and 2020:
InterDigital stock: Valued at its year-end unit closing price (comprised of common stock market price plus uninvested cash position).
Registered investment companies: Valued at the daily closing price as reported by the fund. Mutual funds held by the Plan are open-ended mutual funds that are registered with the U.S. Securities and Exchange Commission. These funds are required to publish their daily net asset value and to transact at that price. The mutual funds held by the Plan are deemed to be actively traded.
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Stable Pooled Fund: A stable value fund that is a fund composed primarily of fully benefit-responsive investment contracts that is valued at the NAV of units of the bank collective trust. The NAV is used as a practical expedient to estimate fair value. This practical expedient would not be used if it is determined to be probable that the fund will sell the investment for an amount different from the reported NAV. Participant transactions (purchases and sales) may occur daily. If the Plan initiates a full redemption of the collective trust, the issuer reserves the right to require 30 days notification to ensure that liquidations of the underlying securities will be carried out in an orderly business manner.
The following tables set forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2021 and December 31, 2020:
  Assets at Fair Value as of December 31, 2021
  Level 1 Level 2 Level 3 Total
     
Registered investment companies:    
  Aggressive Bonds$2,047,513 $— $— $2,047,513 
  Intermediate/Long-term Bonds9,147,711 — — 9,147,711 
  Large-Cap Stocks44,271,834 — — 44,271,834 
  Small/Mid-Cap Stocks25,714,050 — — 25,714,050 
  International Stocks7,330,076 — — 7,330,076 
  Multi-Asset/Other26,419,957 — — 26,419,957 
InterDigital Stock Fund —  3,942,559 —  3,942,559 
Total assets in the fair value hierarchy114,931,141 3,942,559 — 118,873,700 
Investments measured at NAV:
Stable Pooled Fund  11,288,747 
Investments at fair value $114,931,141  $3,942,559  $—  $130,162,447 
  Assets at Fair Value as of December 31, 2020
  Level 1 Level 2 Level 3 Total
     
Registered investment companies:  
  Aggressive Bonds$2,105,078 $— $— $2,105,078 
  Intermediate/Long-term Bonds9,727,208 — — 9,727,208 
  Large-Cap Stocks39,456,304 — — 39,456,304 
  Small/Mid-Cap Stocks23,015,203 — — 23,015,203 
  International Stocks8,214,701 — — 8,214,701 
  Multi-Asset/Other23,798,391 — — 23,798,391 
InterDigital Stock Fund — 3,784,762 —  3,784,762 
Total assets in the fair value hierarchy106,316,885 3,784,762 — 110,101,647 
Investments measured at NAV:
Stable Pooled Fund  12,384,534 
Investments at fair value $106,316,885  $3,784,762  $—  $122,486,181 
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The following table summarizes investments measured at fair value based on NAV per share as of December 31, 2021 and December 31, 2020, respectively:
December 31, 2021Fair ValueUnfunded CommitmentsRedemption FrequencyRedemption Notice Period
Stable Pooled Fund$11,288,747 n/aDaily90 days
December 31, 2020Fair ValueUnfunded CommitmentsRedemption FrequencyRedemption Notice Period
Stable Pooled Fund$12,384,534 n/aDaily90 days
NOTE 4 - INVESTMENTS
The Plan invests in various investment securities. Investment securities are exposed to various risks such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the Statement of Net Assets Available for Benefits.
NOTE 5 - RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS
The Plan invests in shares of the Company's common stock through the InterDigital Stock Fund. Transactions in such investments qualify as party-in-interest transactions that are exempt from the prohibited transaction rules. Total sales at market value related to InterDigital common stock for 2021 and 2020 were $679,758 and $467,762, respectively. Total contributions into InterDigital common stock for 2021 and 2020 were $62,955 and $47,619, respectively. Transamerica is the recordkeeper of the Plan and therefore qualifies as a party-in-interest. As of December 31, 2021 and 2020, the Plan held $313,692 and $235,310, respectively, of cash with State Street Bank & Trust Company, who is the trustee of the Plan and qualifies as a party-in-interest. Notes receivable from participants, which qualify as party-in-interest transactions, as of December 31, 2021 and 2020 were $220,269 and $259,936, respectively, and accrue at interest rates between 4.25% and 6.50%.
NOTE 6 - PLAN EXPENSES
Pursuant to Transamerica’s Fund Revenue Equalization method, Transamerica uses certain revenue sharing payments it receives from the Investment Options available in the Plan to offset the costs of administration of the Plan on an individual fund basis. If the revenue Transamerica collects from a fund provider is greater than the administrative fee negotiated, Transamerica refunds the difference to the participants invested in the fund. If the revenue Transamerica collects from a fund provider is less than the negotiated fee, it collects the difference by deducting an administrative fee from the participants invested in the fund. Transamerica’s Fund Revenue Equalization method ensures that all participants bear a similar percentage charge for the Plan's administrative fees irrespective of the investment funds they choose. Additional amounts in excess of its required revenue are credited to the "Expense Budget Account." If the amount received by Transamerica is less than its required revenue and the funds in the Expense Budget Account are insufficient to cover the shortfall, the Company pays the shortfall.
The amount of the credit to the Expense Budget Account in 2021 and 2020 was $134,690 and $126,709, respectively.
NOTE 7 - TAX STATUS
The Plan has adopted the Non-Standardized Pre-Approved Profit Sharing Plan document of Transamerica. The non-standardized pre-approved sponsor received a favorable opinion letter dated June 30, 2020 in which the IRS stated that the form of the non-standardized pre-approved plan was in compliance with the applicable requirements of the IRS. The Company believes the Plan is designed and is currently being operated in compliance with the applicable requirements of the IRC and that the trust maintained in connection with the Plan satisfies the requirements for exemption under IRC Section 501(a).
GAAP requires Plan management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan had taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan administrator has analyzed the tax positions taken by the Plan, and has concluded that, as of December 31, 2021, there are no uncertain positions taken or expected to be taken that would require recognition of a liability (or asset) or disclosure in the financial statements.
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The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax period in progress. The Plan Administrator believes it is no longer subject to income tax examinations for years prior to 2018.
NOTE 8 - NON-EXEMPT PARTY-IN-INTEREST TRANSACTIONS
For the Plan year 2021 and 2020, the Company remitted certain participant contributions and loan repayments to Transamerica later than required under Department of Labor Regulation §2510.3-102. The Company is in the process of filing IRS Form 5330 to report and pay an excise tax with respect to the 2021 and 2020 late remittance, and participant accounts will be credited with the amount of investment income that would have been earned had the participant contributions been remitted on a timely basis. The amount is not material to the Plan’s financial statements.
NOTE 9 - SUBSEQUENT EVENTS
The Plan has evaluated, for consideration of recognition or disclosure, subsequent events that have occurred through the date of issuance, June 23, 2022, and has determined that no significant events occurred after December 31, 2021, but prior to the issuance of these financial statements that would have a material impact on its financial statements.
12


INTERDIGITAL
SAVINGS AND PROTECTION PLAN
EIN 23-1882087
SCHEDULE H, LINE 4(i) - SCHEDULE OF ASSETS (HELD AT END OF YEAR)
DECEMBER 31, 2021
    Current
Identity of Issue Investment Type Value
State Street Bank & Trust* Cash $313,692 
American Century Mid Cap Value R6 FundRegistered investment companies5,894,447 
American Funds EuroPacific Growth R5 Fund Registered investment companies 6,002,483 
BlackRock High Yield Institutional Bond Fund Registered investment companies 2,047,513 
Delaware Small Cap Value Institutional FundRegistered investment companies1,798,572 
Dodge & Cox Income FundRegistered investment companies5,506,785 
BNY Mellon Small/Mid Cap Growth Fund Class IRegistered investment companies5,100,546 
Vanguard Real Estate Index Admiral Registered investment companies 4,432,004 
T. Rowe Price Institutional Large Cap Core Growth FundRegistered investment companies13,144,674 
Fidelity 500 Index FundRegistered investment companies21,257,376 
Vanguard Equity Income Fund AdmiralRegistered investment companies9,869,784 
Vanguard Small Cap Index Fund AdmiralRegistered investment companies5,641,650 
Vanguard Target Retirement 2020 FundRegistered investment companies2,512,027 
Vanguard Target Retirement 2030 Fund Registered investment companies 9,176,221 
Vanguard Target Retirement 2040 FundRegistered investment companies9,772,829 
Vanguard Target Retirement 2050 Fund Registered investment companies 3,799,111 
Vanguard Target Retirement 2060 FundRegistered investment companies465,616 
Vanguard Target Retirement Income FundRegistered investment companies694,153 
Vanguard Total Bond Market Index Admiral FundRegistered investment companies3,640,926 
ClearBridge Small Cap Growth FundRegistered investment companies2,846,831 
Allsprings Advantage Emerging Markets Equity Fund Registered investment companies 1,327,593 
  Registered Investment Companies Total $114,931,141 
     
Stable Pooled Fund* Investments in common trusts $11,288,747 
     
InterDigital Stock Fund* Employer Stock Fund $3,942,559 
     
Notes Receivable from Participants* Notes Receivable with Interest Rates between 4.25% and 6.50% $220,269 
TOTAL ASSETS HELD AT END OF YEAR   $130,696,408 
 
*     Transaction with party-in-interest
Cost is not required for participant-directed investments.
13


INTERDIGITAL
SAVINGS AND PROTECTION PLAN
EIN 23-1882087
SCHEDULE H, LINE 4(a) - SCHEDULE OF DELINQUENT PARTICIPANT CONTRIBUTIONS
DECEMBER 31, 2021
Totals that Constitute Nonexempt Prohibited Transactions
Contributions Not CorrectedContributions Corrected outside VFCPContributions Pending Correction in VFCPTotal Fully Corrected Under VFCP and PTE 2002-51
Participant Contributions Transferred Late to Plan for year ended 12/31/2021$— $— $1,949,469 $— 
Participant Contributions Transferred Late to Plan for year ended 12/31/2020$— $— $2,048,270 $— 


14


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.
     
 
INTERDIGITAL SAVINGS AND PROTECTION PLAN
 
 By:  InterDigital, Inc., in its capacity as Plan Sponsor and Plan Administrator   
   
Date: June 23, 2022By:  /s/ Richard J. Brezski   
  Richard J. Brezski  
  Chief Financial Officer 



15


EXHIBIT INDEX
     The following is a list of Exhibits filed as part of this Annual Report on Form 11-K:
   
Exhibit Exhibit
Number Description
23.1 



16
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