Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2020March 31, 2021
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     

Commission File Number 1-33579
INTERDIGITAL, INC.
(Exact Name of Registrant as Specified in Its Charter)
Pennsylvania82-4936666
(State or Other Jurisdiction of

Incorporation or Organization)
(I.R.S. Employer

Identification No.)
200 Bellevue Parkway,, Suite 300,, Wilmington,, DE19809-3727
(Address of Principal Executive Offices and Zip Code)
(302(302) 281-3600
(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Exchange Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.01 per shareIDCCNASDAQ Stock Market LLC
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports); and (2) has been subject to such filing requirements for the past 90 days. Yes No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No þ
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Common Stock, par value $0.01 per share30,805,96830,772,057
Title of ClassOutstanding at AugustMay 4, 20202021




INDEX

InterDigital® is a registered trademark of InterDigital, Inc. All other trademarks, service marks and/or trade names appearing in this Quarterly Report on Form 10-Q are the property of their respective holders.





PART I — FINANCIAL INFORMATION
Item 1. FINANCIAL STATEMENTS
INTERDIGITAL, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands, except per share data)
(unaudited)
 JUNE 30,
2020
 DECEMBER 31,
2019
ASSETS   
CURRENT ASSETS:   
Cash and cash equivalents$670,292
 $745,491
Short-term investments168,953
 179,204
Accounts receivable, less allowances of $0 and $53719,380

28,272
Prepaid and other current assets62,387

63,365
Total current assets921,012
 1,016,332
PROPERTY AND EQUIPMENT, NET11,918

10,217
PATENTS, NET447,194
 436,339
DEFERRED TAX ASSETS79,897
 73,168
OTHER NON-CURRENT ASSETS78,744

76,026
 617,753
 595,750
TOTAL ASSETS$1,538,765
 $1,612,082
    
LIABILITIES AND SHAREHOLDERS’ EQUITY   
CURRENT LIABILITIES:   
Current portion of long-term debt$
 $94,170
Accounts payable11,394
 13,393
Accrued compensation and related expenses24,002
 29,162
Deferred revenue141,528

146,654
Taxes payable102
 51
Dividends payable10,781
 10,746
Other accrued expenses16,123
 11,382
Total current liabilities203,930
 305,558
LONG-TERM DEBT359,119
 350,588
LONG-TERM DEFERRED REVENUE139,396

123,653
OTHER LONG-TERM LIABILITIES45,614
 46,002
TOTAL LIABILITIES748,059
 825,801
COMMITMENTS AND CONTINGENCIES

 

SHAREHOLDERS’ EQUITY:   
Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding
 
Common Stock, $0.01 par value, 100,000 shares authorized, 71,377 and 71,268 shares issued and 30,804 and 30,701 shares outstanding713
 712
Additional paid-in capital734,565
 727,402
Retained earnings1,413,382
 1,412,779
Accumulated other comprehensive income (loss)370
 (74)
 2,149,030
 2,140,819
Treasury stock, 40,573 and 40,567 shares of common held at cost1,379,611
 1,379,262
Total InterDigital, Inc. shareholders’ equity769,419
 761,557
Noncontrolling interest21,287
 24,724
Total equity790,706
 786,281
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY$1,538,765
 $1,612,082

MARCH 31,
2021
DECEMBER 31,
2020
ASSETS  
CURRENT ASSETS:  
Cash and cash equivalents$396,156 $473,474 
Short-term investments488,559 453,173 
Accounts receivable12,502 16,008 
Prepaid and other current assets87,663 84,224 
Total current assets984,880 1,026,879 
PROPERTY AND EQUIPMENT, NET15,626 16,630 
PATENTS, NET407,732 418,343 
DEFERRED TAX ASSETS82,216 80,380 
OTHER NON-CURRENT ASSETS, NET71,420 74,043 
Total non-current assets576,994 589,396 
TOTAL ASSETS$1,561,874 $1,616,275 
LIABILITIES AND SHAREHOLDERS’ EQUITY  
CURRENT LIABILITIES:  
Accounts payable$8,592 $10,979 
Accrued compensation and related expenses21,527 32,413 
Deferred revenue192,422 219,935 
Dividends payable10,766 10,786 
Other accrued expenses19,927 21,649 
Total current liabilities253,234 295,762 
LONG-TERM DEBT419,396 367,992 
LONG-TERM DEFERRED REVENUE112,153 108,069 
OTHER LONG-TERM LIABILITIES44,518 47,886 
TOTAL LIABILITIES829,301 819,709 
COMMITMENTS AND CONTINGENCIES00
SHAREHOLDERS’ EQUITY:  
Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding
Common Stock, $0.01 par value, 100,000 shares authorized, 71,476 and 71,389 shares issued and 30,812 and 30,816 shares outstanding714 714 
Additional paid-in capital738,619 738,481 
Retained earnings1,358,380 1,413,969 
Accumulated other comprehensive loss(254)(184)
2,097,459 2,152,980 
Treasury stock, 40,664 and 40,573 shares of common held at cost1,385,361 1,379,611 
Total InterDigital, Inc. shareholders’ equity712,098 773,369 
Noncontrolling interest20,475 23,197 
Total equity732,573 796,566 
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY$1,561,874 $1,616,275 
The accompanying notes are an integral part of these statements.

3

INTERDIGITAL, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(in thousands, except per share data)
(unaudited)
FOR THE THREE MONTHS ENDED MARCH 31,
20212020
REVENUES:
Patent licensing royalties$80,173 $72,998 
Technology solutions2,190 3,212 
Total Revenue82,363 76,210 
OPERATING EXPENSES:
Patent administration and licensing36,574 40,108 
Development22,583 18,818 
Selling, general and administrative11,217 12,603 
Total Operating expenses70,374 71,529 
Income from operations11,989 4,681 
INTEREST EXPENSE(6,990)(10,545)
OTHER INCOME, NET724 6,023 
Income before income taxes5,723 159 
INCOME TAX PROVISION(1,765)(1,820)
NET INCOME (LOSS)$3,958 $(1,661)
Net loss attributable to noncontrolling interest(1,613)(1,777)
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.$5,571 $116 
NET INCOME PER COMMON SHARE — BASIC$0.18 $
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING — BASIC30,836 30,722 
NET INCOME PER COMMON SHARE — DILUTED$0.18 $
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING — DILUTED31,195 30,920 
 FOR THE THREE MONTHS ENDED JUNE 30, FOR THE SIX MONTHS ENDED JUNE 30,
 2020 2019 2020 2019
REVENUES:       
Patent licensing royalties$101,184
 $73,567
 $174,182
 $139,945
Technology solutions3,314
 2,042
 6,526
 4,070
Patent sales
 
 
 225
 104,498
 75,609
 180,708
 144,240
        
OPERATING EXPENSES:       
Patent administration and licensing38,695
 37,353
 78,803
 73,424
Development22,092
 17,027
 40,910
 35,522
Selling, general and administrative11,794
 12,314
 24,397
 26,529

72,581
 66,694
 144,110
 135,475

       
Income from operations31,917
 8,915
 36,598
 8,765

       
INTEREST EXPENSE(9,971) (9,907) (20,516) (19,385)
OTHER INCOME, NET3,789
 12,354
 9,812
 15,969
Income before income taxes25,735
 11,362
 25,894
 5,349
INCOME TAX PROVISION(5,144) (4,984) (6,964) (3,185)
NET INCOME$20,591

$6,378
 $18,930
 $2,164
Net loss attributable to noncontrolling interest(1,660) (1,365) (3,437) (2,776)
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.$22,251
 $7,743
 $22,367
 $4,940
NET INCOME PER COMMON SHARE — BASIC$0.72
 $0.25
 $0.73
 $0.15
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING — BASIC30,757
 31,547
 30,740
 32,076
NET INCOME PER COMMON SHARE — DILUTED$0.72
 $0.24
 $0.72
 $0.15
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING — DILUTED31,045
 31,776
 30,982
 32,366

The accompanying notes are an integral part of these statements.

4

INTERDIGITAL, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)
(unaudited)

 FOR THE THREE MONTHS ENDED JUNE 30, FOR THE SIX MONTHS ENDED JUNE 30,
 2020 2019 2020 2019
Net income$20,591
 $6,378
 $18,930
 $2,164
Unrealized gain on investments, net of tax412
 1,076
 444
 2,121
Comprehensive income$21,003
 $7,454
 $19,374
 $4,285
Comprehensive loss attributable to noncontrolling interest(1,660) (1,365) (3,437) (2,776)
Total comprehensive income attributable to InterDigital, Inc.$22,663
 $8,819
 $22,811
 $7,061
 FOR THE THREE MONTHS ENDED MARCH 31,
 20212020
Net income (loss)$3,958 $(1,661)
Unrealized gain (loss) on investments, net of tax(70)32 
Comprehensive income (loss)$3,888 $(1,629)
Comprehensive loss attributable to noncontrolling interest(1,613)(1,777)
Total comprehensive income attributable to InterDigital, Inc.$5,501 $148 
The accompanying notes are an integral part of these statements.


5

INTERDIGITAL, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
(in thousands, except per share data)
(unaudited)
Common StockAdditional
 Paid-In Capital
Retained EarningsAccumulated
Other
Comprehensive
 Loss
Treasury StockNon-Controlling
Interest
Total
Shareholders'
Equity
 SharesAmount SharesAmount
BALANCE, DECEMBER 31, 201971,268 $712 $727,402 $1,412,779 $(74)40,567 $(1,379,262)$24,724 $786,281 
Net income attributable to InterDigital, Inc.— — — 116 — — — — 116 
Net loss attributable to noncontrolling interest— — — — — — — (1,777)(1,777)
Net change in unrealized gain on short-term investments— — — — 32 — — — 32 
Dividends declared ($0.35 per share)— — 84 (10,847)— — — — (10,763)
Exercise of common stock options27 777 — — — — — 778 
Issuance of common stock, net27 — (725)— — — — — (725)
Amortization of unearned compensation— — 2,003 — — — — — 2,003 
Repurchase of common stock  —   (349)— (349)
BALANCE, MARCH 31, 202071,322 $713 $729,541 $1,402,048 $(42)40,573 $(1,379,611)$22,947 $775,596 
         
Accumulated
Other
Comprehensive
 Income (Loss)
        
 Common Stock 
Additional
 Paid-In Capital
 Retained Earnings  Treasury Stock 
Non-Controlling
Interest
 
Total
Shareholders'
Equity
 Shares Amount     Shares Amount 
BALANCE, DECEMBER 31, 201871,134
 $711
 $685,512
 $1,435,970
 $(2,471) 37,605
 $(1,182,993) $1,284
 $938,013
Net loss attributable to InterDigital, Inc.
 
 
 (2,803) 
 
 
 
 (2,803)
Proceeds from and increases in noncontrolling interests
 
 
 
 
 
 
 12,834
 12,834
Net loss attributable to noncontrolling interest
 
 
 
 
 
 
 (1,411) (1,411)
Net change in unrealized gain (loss) on short-term investments
 
 
 
 1,045
 
 
 
 1,045
Dividends declared ($0.35 per share)
 
 103
 (11,283) 
 
 
 
 (11,180)
Exercise of common stock options
 
 2
 
 
 
 
 
 2
Issuance of common stock, net116
 1
 (4,098) 
 
 
 
 
 (4,097)
Amortization of unearned compensation
 
 2,096
 
 
 
 
 
 2,096
Repurchase of common stock
 
 
 
 
 1,585
 (108,986) 
 (108,986)
BALANCE, MARCH 31, 201971,250
 $712
 $683,615
 $1,421,884
 $(1,426) 39,190
 $(1,291,979) $12,707
 $825,513
Net income attributable to InterDigital, Inc.
 
 
 7,743
 
 
 
 
 7,743
Net loss attributable to noncontrolling interest
 
 
 
 
 
 
 (1,365) (1,365)
Net change in unrealized gain (loss) on short-term investments
 
 
 
 1,076
 
 
 
 1,076
Dividends declared ($0.35 per share)
 
 104
 (10,999) 
 
 
 
 (10,895)
Issuance of common stock, net10
 
 (40) 
 
 
 
 
 (40)
Amortization of unearned compensation
 
 2,116
 
 
 
 
 
 2,116
Repurchase of common stock
 
 
 
 
 944
 (62,283) 
 (62,283)
Equity component of debt, net of tax
 
 56,917
 
 
 
 
 
 56,917
Net convertible note hedge transactions, net of tax
 
 (49,740) 
 
 
 
 
 (49,740)
Net warrant transactions
 
 43,416
 
 
 
 
 
 43,416
Deferred financing costs allocated to equity, net of tax
 
 (1,569) 
 
 
 
 
 (1,569)
Reacquisition of equity component of debt due to prepayment, net of tax
 
 (10,649) 
 
 
 
 
 (10,649)
BALANCE, JUNE 30, 201971,260
 $712
 $724,170
 $1,418,628
 $(350) 40,134
 $(1,354,262) $11,342
 $800,240


Common StockAdditional
 Paid-In Capital
Retained EarningsAccumulated
Other
Comprehensive
 Loss
Treasury StockNon-Controlling
Interest
Total
Shareholders'
Equity
SharesAmount SharesAmount
BALANCE, DECEMBER 31, 2020BALANCE, DECEMBER 31, 202071,389 $714 $738,481 $1,413,969 $(184)40,573 $(1,379,611)$23,197 $796,566 
Adjustment to Retained Earnings related to adoption of ASU 2020-06Adjustment to Retained Earnings related to adoption of ASU 2020-06— — — (50,184)— — — — (50,184)
Net income attributable to InterDigital, Inc.Net income attributable to InterDigital, Inc.— — — 5,571 — — — — 5,571 
Net loss attributable to noncontrolling interestNet loss attributable to noncontrolling interest— — — — — — — (1,613)(1,613)
Noncontrolling interest distributionNoncontrolling interest distribution— — — — — — — (1,109)(1,109)
Net change in unrealized loss on short-term investmentsNet change in unrealized loss on short-term investments— — — — (70)— — — (70)
Dividends declared ($0.35 per share)Dividends declared ($0.35 per share)— — 210 (10,976)— — — — (10,766)
Exercise of common stock optionsExercise of common stock options32 737 — — — — — 737 
Issuance of common stock, netIssuance of common stock, net55 — (2,962)— — — — — (2,962)
Amortization of unearned compensationAmortization of unearned compensation— — 2,153 — — — — — 2,153 
Repurchase of common stockRepurchase of common stock  —   91 (5,750)— (5,750)
BALANCE, MARCH 31, 2021BALANCE, MARCH 31, 202171,476 $714 $738,619 $1,358,380 $(254)40,664 $(1,385,361)$20,475 $732,573 
        
Accumulated
Other
Comprehensive
 Income (Loss)
        
Common Stock 
Additional
 Paid-In Capital
 Retained Earnings Treasury Stock 
Non-Controlling
Interest
 
Total
Shareholders'
Equity
Shares Amount Amount
Accumulated
Other
Comprehensive
 Income (Loss)
Amount 
BALANCE, DECEMBER 31, 201971,268
 $712
 $727,402
 $1,412,779
 $(74) 40,567
) $24,724
 $786,281
Net income attributable to InterDigital, Inc.
 
 
 116
 
 
 
 116
Proceeds from and increases in noncontrolling interests
 
 
 
 
 
 
 
 
Net loss attributable to noncontrolling interest
 
 
 
 
 
 
 (1,777) (1,777)
Net change in unrealized gain (loss) on short-term investments
 
 
 
 32
 
 
 
 32
Dividends declared ($0.35 per share)
 
 84
 (10,847) 
 
 
 
 (10,763)
Exercise of common stock options27
 1
 777
 
 
 
 
 
 778
Issuance of common stock, net27
 
 (725) 
 
 
 
 
 (725)
Amortization of unearned compensation
 
 2,003
 
 
 
 
 
 2,003
Repurchase of common stock
 
 
 
 
 6
 (349) 
 (349)
BALANCE, MARCH 31, 202071,322
 $713
 $729,541
 $1,402,048
 $(42) 40,573
 $(1,379,611) $22,947
 $775,596
Net income attributable to InterDigital, Inc.
 
 
 22,251
 
 
 
 
 22,251
Proceeds from and increases in noncontrolling interests
 
 
 
 
 
 
 
 
Net loss attributable to noncontrolling interest
 
 
 
 
 
 
 (1,660) (1,660)
Net change in unrealized gain (loss) on short-term investments
 
 
 
 412
 
 
 
 412
Dividends declared ($0.35 per share)
 
 136
 (10,917) 
 
 
 
 (10,781)
Exercise of common stock options19
 
 1,014
 
 
 
 
 
 1,014
Issuance of common stock, net36
 
 (755) 
 
 
 
 
 (755)
Amortization of unearned compensation
 
 4,629
 
 
 
 
 
 4,629
Repurchase of common stock
 
 
 
 
 
 
 
 
BALANCE, JUNE 30, 202071,377

$713

$734,565

$1,413,382

$370

40,573

$(1,379,611)
$21,287

$790,706
The accompanying notes are an integral part of these statements.

6

Table of Contents

INTERDIGITAL, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
(unaudited)
FOR THE SIX MONTHS ENDED JUNE 30,FOR THE THREE MONTHS ENDED MARCH 31,
2020 2019 20212020
CASH FLOWS FROM OPERATING ACTIVITIES:   CASH FLOWS FROM OPERATING ACTIVITIES:  
Net income$18,930

$2,164
Adjustments to reconcile net income to net cash provided by (used in) operating activities:   
Net income (loss)Net income (loss)$3,958 $(1,661)
Adjustments to reconcile net income (loss) to net cash used in operating activities:Adjustments to reconcile net income (loss) to net cash used in operating activities: 
Depreciation and amortization40,367
 37,642
Depreciation and amortization19,861 19,160 
Non-cash interest expense, net8,649
 8,563
Non-cash interest expense, net1,819 4,637 
Non-cash change in fair-value(5,501) 710
Non-cash change in fair-value(5,501)
Gain on asset acquisition
 (14,175)
Change in deferred revenue(22,683) (62,754)Change in deferred revenue(23,429)(39,512)
Loss on extinguishment of debt
 5,488
Deferred income taxes(6,920) (5,714)Deferred income taxes(1,817)(751)
Share-based compensation6,631
 4,212
Share-based compensation2,153 2,003 
Other259
 623
Other1,108 
(Increase) decrease in assets:   (Increase) decrease in assets:
Receivables8,892
 (22,169)Receivables3,507 2,664 
Deferred charges and other assets(1,470) (6,463)Deferred charges and other assets631 (1,658)
Increase (decrease) in liabilities:
  Increase (decrease) in liabilities:
Accounts payable(3,575) (3,105)Accounts payable(291)(2,477)
Accrued compensation and other expenses(760) 2,326
Accrued compensation and other expenses(16,234)(4,897)
Accrued taxes payable and other tax contingencies51
 (871)
Net cash provided by (used in) operating activities42,870

(53,523)
Net cash used in operating activitiesNet cash used in operating activities(9,842)(26,885)
CASH FLOWS FROM INVESTING ACTIVITIES:   CASH FLOWS FROM INVESTING ACTIVITIES:  
Purchases of short-term investments(120,977) (92,074)Purchases of short-term investments(173,120)(110,378)
Sales of short-term investments132,363
 267,289
Sales of short-term investments137,174 23,701 
Purchases of property and equipment(3,771)
(2,862)Purchases of property and equipment(387)(1,603)
Capitalized patent costs(13,849) (17,840)Capitalized patent costs(9,602)(6,256)
Net cash provided by (used in) investing activities(6,234) 154,513
Long-term investmentsLong-term investments(1,091)
Net cash used in investing activitiesNet cash used in investing activities(47,026)(94,536)
CASH FLOWS FROM FINANCING ACTIVITIES:   CASH FLOWS FROM FINANCING ACTIVITIES:  
Net proceeds from exercise of stock options1,792
 2
Net proceeds from exercise of stock options737 778 
Payments on long-term debt(94,909) (221,091)Payments on long-term debt(94,909)
Proceeds from issuance of convertible senior notes
 400,000
Purchase of convertible bond hedge
 (72,000)
Payment for warrant unwind
 (4,184)
Prepayment penalty on long-term debt
 (10,763)
Proceeds from hedge unwind
 9,038
Proceeds from issuance of warrants
 47,600
Payments of debt issuance costs
 (7,300)
Proceeds from non-controlling interests
 10,333
Repurchase of common stockRepurchase of common stock(5,750)(349)
Non-controlling interest distributionNon-controlling interest distribution(1,109)
Taxes withheld upon restricted stock unit vestingsTaxes withheld upon restricted stock unit vestings(2,962)(725)
Dividends paid(21,509)
(22,789)Dividends paid(10,786)(10,747)
Taxes withheld upon restricted stock unit vestings(1,480) (4,137)
Repurchase of common stock(349) (171,269)
Net cash used in financing activities(116,455) (46,560)Net cash used in financing activities(19,870)(105,952)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(79,819) 54,430
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASHNET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH(76,738)(227,373)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD757,098
 488,733
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD477,663 757,098 
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD$677,279
 $543,163
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD$400,925 $529,725 
Refer to Note 1, "Basis of Presentation," for additional supplemental cash flow information. Additionally, refer to Note 7,6, "Cash, Concentration of Credit Risk and Fair Value of Financial Instruments" for a reconciliation of cash, cash equivalents and restricted cash to the condensed consolidated balance sheets.
The accompanying notes are an integral part of these statements.

7

Table of Contents
INTERDIGITAL, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
June 30, 2020March 31, 2021
(unaudited)
1. BASIS OF PRESENTATION
In the opinion of management, the accompanying unaudited, condensed consolidated financial statements contain all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the financial position of InterDigital, Inc. (individually and/or collectively with its subsidiaries referred to as “InterDigital,” the “Company,” “we,” “us” or “our,” unless otherwise indicated) as of June 30, 2020,March 31, 2021, the results of our operations for the three and six months ended June 30,March 31, 2021 and 2020  and 2019 and our cash flows for the sixthree months ended June 30, 2020March 31, 2021 and 2019.2020. The accompanying unaudited, condensed consolidated financial statements have been prepared in accordance with the instructions forto Form 10-Q and, accordingly, do not include all of the detailed schedules, information and notes necessary to state fairly the financial condition, results of operations and cash flows in conformity with United States generally accepted accounting principles (“GAAP”). The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP for year-end financial statements. Therefore, these financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 20192020 (our “2019“2020 Form 10-K”) as filed with the Securities and Exchange Commission (“SEC”) on February 20, 2020.18, 2021. Definitions of capitalized terms not defined herein appear within our 20192020 Form 10-K. The results of operations for interim periods are not necessarily indicative of the results to be expected for the entire year. We have 1 reportable segment.
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 as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
InterDigital has analyzed the impact of the ongoing Coronavirus pandemic ("COVID-19"(“COVID-19”) on its financial statements as of June 30, 2020.March 31, 2021.  InterDigital has determined that the changes to its significant judgments and estimates as a result of COVID-19 did not have a material impact on its financial statements.  The potential impact of COVID-19 will continue to be analyzed going forward.
Change in Accounting Policies
There have been no material changes or updates to our existing accounting policies from the disclosures included in our 20192020 Form 10-K.10-K, except as indicated below in "New Accounting Guidance".
Reclassifications
Certain reclassifications have been made to prior year amounts to conform to the current year presentation.
Supplemental Cash Flow Information
The following table presents additional supplemental cash flow information for the sixthree months ended June 30,March 31, 2021 and 2020 and 2019 (in thousands):
FOR THE SIX MONTHS ENDED JUNE 30,FOR THE THREE MONTHS ENDED MARCH 31,
SUPPLEMENTAL CASH FLOW INFORMATION:2020 2019SUPPLEMENTAL CASH FLOW INFORMATION:20212020
Interest paid$4,712
 $3,218
Interest paid$$712 
Income taxes paid, including foreign withholding taxes13,788
 9,770
Income taxes paid, including foreign withholding taxes4,328 2,228 
Non-cash investing and financing activities:   Non-cash investing and financing activities:
Dividend payable10,781
 10,895
Dividend payable10,766 10,762 
Increases in noncontrolling interests
 2,500
Accrued debt issuance costs
 (1,075)
Non-cash acquisition of patents33,300
 
Accrued capitalized patent costs and property and equipment(742) (1,910)Accrued capitalized patent costs and property and equipment2,096 (1,288)
Unsettled repurchase of common stockUnsettled repurchase of common stock1,994 
8


Table of Contents

New Accounting Guidance
Accounting Standards Update: Financial Instruments - Credit Losses
In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments - Credit Losses".  This ASU introduced a new accounting model for recognizing credit losses on certain financial instruments and financial assets, including trade receivables, based upon an estimate of current expected credit losses, otherwise known as CECL. The new guidance requires the recognition of an allowance that reflects the current estimate of credit losses expected to be incurred over the life of the financial asset, based not only on historical experience and current conditions, but also on reasonable forecasts. Additionally, ASU No. 2016-13 made several changes to the available-for-sale impairment model. The guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and early adoption is permitted. We adopted this guidance as of January 1, 2020 and the adoption did not have a material impact on our consolidated financial statements.
Accounting Standards Update: Cloud Computing Arrangements
In August 2018, the FASB issued ASU No. 2018-15 “Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract”. The amendments in this ASU align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and early adoption is permitted. We adopted this guidance as of January 1, 2020 and the adoption did not have a material impact on our consolidated financial statements.
Accounting Standards Update: Collaborative Arrangements
In November 2018, the FASB issued ASU No. 2018-18, "Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606".  The amendments in this ASU provide guidance on how to assess whether certain transactions between collaborative arrangement participants should be accounted for within the revenue recognition standard. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and early adoption is permitted for entities who have previously adopted the new revenue recognition guidance. We adopted this guidance as of January 1, 2020 and the adoption did not have a material impact on our consolidated financial statements.
Accounting Standards Update: Simplifying the Accounting for Income Taxes
In December 2019, the FASB issued ASU No. 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes" ("ASU 2019-12"). The amendments in this ASU are intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020 with early adoption allowed. The Company is currently evaluating the impactWe adopted this guidance as of January 1, 2021 and the adoption of ASU 2019-12did not have a material impact on itsour consolidated financial statements.
Accounting Standards Update: Simplifying the Accounting for Convertible Instruments
In August 2020, the FASB issued ASU No. 2020-06, “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity” (“ASU 2020-06”). The amendments in this ASU are intended to simplify accounting for convertible debt instruments and convertible preferred stock by removing certain accounting models which separate the embedded conversion features from the host contract. ASU 2020-06 also amends certain guidance in ASC 260 on the computation of earnings per share for convertible instruments and contracts on an entity’s own equity. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, and early adoption is permitted for fiscal years beginning after December 15, 2020. This update permits the use of either the modified retrospective or fully retrospective methods of transition. We elected to early adopt this standard on a modified retrospective approach as of January 1, 2021.
This adoption increased Long-term debt by $50.2 million at January 1, 2021, which was comprised of $51.6 million of unamortized interest discount and was partially offset by a net increase of $1.4 million equity component of deferred financing costs. This was due to the standard no longer requiring bifurcation of the embedded conversion feature from the host contract on the 2024 Notes, as defined in Note 7, "Obligations." This adoption also reduced non-cash interest expense starting in 2021 due to the removal of the accretion of the debt discount on the 2024 Notes.
Lastly, the adoption requires the use of the if-converted method of calculating diluted earnings per share rather than the treasury stock method for convertible instruments and requires the inclusion of the potential effect of shares settled in cash or shares in the diluted earnings per share calculation. Due to the reduction in non-cash interest expense, this adoption increased both basic and diluted earnings per share by $0.09 for the three months ended March 31, 2021.
2. REVENUE
Disaggregated Revenue
The following table presents the disaggregation of our revenue for the three and six months ended June 30,March 31, 2021 and 2020 and 2019 (in thousands):

Three months ended March 31,
 20212020 Increase/(Decrease)
Variable patent royalty revenue$7,096 $5,946 $1,150 19 %
Fixed-fee royalty revenue69,296 66,347 2,949 %
Current patent royalties a
76,392 72,293 4,099 %
Non-current patent royalties b
3,781 705 3,076 436 %
Total patent royalties80,173 72,998 7,175 10 %
Current technology solutions revenue a
2,190 3,212 (1,022)(32)%
Total revenue$82,363 $76,210 $6,153 %
 Three months ended June 30,    
 2020 2019  Increase/(Decrease)
Variable patent royalty revenue$4,597
 $8,594
 $(3,997) (47)%
Fixed-fee royalty revenue77,338
 63,736
 13,602
 21 %
Current patent royalties a
81,935
 72,330
 9,605
 13 %
Non-current patent royalties b
19,249
 1,237
 18,012
 1,456 %
Total patent royalties101,184
 73,567
 27,617
 38 %
Current technology solutions revenue a
3,314
 2,042
 1,272
 62 %
Patent sales b

 
 
  %
Total revenue$104,498
 $75,609
 $28,889
 38 %
 Six months ended June 30,    
 2020 2019  Increase/(Decrease)
Variable patent royalty revenue$10,543
 $17,874
 $(7,331) (41)%
Fixed-fee royalty revenue143,685
 126,609
 17,076
 13 %
Current patent royalties a
154,228
 144,483
 9,745
 7 %
Non-current patent royalties b
19,954
 (4,538) 24,492
 540 %
Total patent royalties174,182
 139,945
 34,237
 24 %
Current technology solutions revenue a
6,526
 4,070
 2,456
 60 %
Patent sales b

 225
 (225)  %
Total revenue$180,708
 $144,240
 $36,468
 25 %
a.Recurring revenues are comprised of current patent royalties, inclusive of Dynamic Fixed-Fee Agreement royalties, and current technology solutions revenue.
b.Non-recurring revenues are comprised of non-current patent royalties, which primarily include past patent royalties and royalties from static agreements, as well as patent sales.
a.    Recurring revenues are comprised of current patent royalties, inclusive of Dynamic Fixed-Fee Agreement royalties, and current technology solutions revenue.
b.    Non-recurring revenues are comprised of non-current patent royalties, which primarily include past patent royalties and royalties from static agreements, as well as patent sales.
During first half 2020,the three months ended March 31, 2021, we recognized $103.7$62.7 million of revenue that had been included in deferred revenue as of the beginning of the period. As of June 30, 2020,March 31, 2021, we had contract assets of $10.2$9.4 million and $9.5$8.9 million included within "Accounts receivable" and "Other non-current assets, net" in the condensed consolidated balance sheet, respectively. As of December 31, 2019,2020, we had contract assets of $16.2$9.7 million and $10.2$8.9 million included within "Accounts receivable" and "Other non-current assets, net" in the condensed consolidated balance sheet, respectively.
9

Table of Contents
Contracted Revenue
Based on contracts signed and committed as of June 30, 2020,March 31, 2021, we expect to recognize the following revenue from Dynamic Fixed-Fee Agreement payments over the term of such contracts (in thousands):
 Revenue
Remainder 2020$152,143
2021235,357
2022130,650
202343,922
2024

Revenue
Remainder 2021$207,482 
2022238,057 
202344,469 
202489 
2025 and beyond
Total Revenue$490,097 

3. INCOME TAXES
In first halfthe three months ended March 31, 2021 and 2020, based on the statutory federal tax rate net of discrete federal and state taxes, weCompany had an effective tax rate of 26.9%.30.8% and 1,144.7%, respectively. The effective tax rate for the first half 2020in both periods was impacted by losses in certain jurisdictions where the Company presently has recorded a valuation allowance against the related tax benefit. Excluding this valuation allowance, theour first quarter 2021 and 2020 effective tax rate for first half 2020 would have been 12.5%. This is compared to an effective tax rate of 59.5% based on12.0% and 65.5% respectively. During the statutory federal tax rate net of discrete federalfirst quarter 2021 and state taxes during first half 2019. During first half 2019, we2020, the Company recorded discrete net expense of $3.0$0.3 million primarily related to both the acquisition of the Research & Innovation unit of Technicolor SA and extinguishment of long-term debt. The Company believes that outcomes which are reasonably possible within the next 12 months may result in the reduction in the liability for unrecognized tax benefits of $1.8 million, excluding interest and penalties.
On March 27, 2020, the Coronavirus Aid, Relief and Economic Security Act (the "CARES Act") was signed into law. We are currently evaluating its impact, if any, on us.
On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Reform Act") was signed into law. The Tax Reform Act imposes a 13.125% tax rate on income that qualifies as Foreign Derived Intangible Income ("FDII"). On July 9, 2020, the IRS issued final regulations for FDII. The Company is currently evaluating and will record the impact, if any, as applicable.share-based compensation.
The effective tax rate reported in any given year will continue to be influenced by a variety of factors, including timing differences between the recognition of book and tax revenue, the level of pre-tax income or loss, the foreign vs. domestic classification of the Company’s customers, and any discrete items that may occur. With
During the FDII regulations being released as final on July 9,three months ended March 31, 2021 and 2020, the Company does not believe any proposed or pending regulations will have a significant impact on its tax positions.
During first half 2020 and 2019, we paid approximately $13.4$3.6 million and $5.1$2.0 million, respectively, ofin foreign source creditable withholding tax. Additionally, as of each June 30, 2020 and December 31, 2019, we included approximately $0.1 million of foreign source withholding tax within our taxes payable and deferred tax asset balances. These amounts are related to receivables from foreign licensees.
4. NET INCOME (LOSS) PER SHARE
Basic Earnings Per Share ("EPS") is calculated by dividing net income or loss available to common shareholders by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if options or other securities with features that could result in the issuance of common stock were exercised or converted to common stock.stock or resulting from the unvested outstanding RSUs. The following tables reconcile the numerator and the denominator of the basic and diluted net income (loss) per share computation (in thousands, except for per share data):
 Three months ended June 30,
 2020 2019
 Basic Diluted Basic Diluted
Numerator:       
Net income applicable to InterDigital, Inc.$22,251
 $22,251
 $7,743
 $7,743
Denominator:       
Weighted-average shares outstanding: Basic30,757
 30,757
 31,547
 31,547
Dilutive effect of stock options, RSUs, convertible securities and warrants  288
   229
Weighted-average shares outstanding: Diluted  31,045
   31,776
Earnings Per Share:       
Net income per common share: Basic$0.72
 $0.72
 $0.25
 $0.25
Dilutive effect of stock options, RSUs, convertible securities and warrants  
   (0.01)
Net income per common share: Diluted  $0.72
   $0.24


Three months ended March 31,
20212020
Net income applicable to InterDigital, Inc.$5,571 $116 
Weighted-average shares outstanding:
Basic30,836 30,722 
Dilutive effect of stock options, RSUs, convertible securities and warrants359 198 
Diluted31,195 30,920 
Earnings per share:
Basic$0.18 $
Dilutive effect of stock options, RSUs, convertible securities and warrants
Diluted$0.18 $
 Six months ended June 30,
 2020 2019
 Basic Diluted Basic Diluted
Numerator:       
Net income applicable to InterDigital, Inc.$22,367
 $22,367
 $4,940
 $4,940
Denominator:       
Weighted-average shares outstanding: Basic30,740
 30,740
 32,076
 32,076
Dilutive effect of stock options, RSUs, convertible securities and warrants  242
   290
Weighted-average shares outstanding: Diluted  30,982
   32,366
Earnings Per Share:       
Net income per common share: Basic$0.73
 $0.73
 $0.15
 $0.15
Dilutive effect of stock options, RSUs, convertible securities and warrants  (0.01)   
Net income per common share: Diluted  $0.72
   $0.15
10


Table of Contents
Shares of common stock issuable upon the exercise or conversion of certain securities have been excluded from our computation of EPS because the strike price or conversion rate, as applicable, of such securities was greater than the average market price of our common stock and, as a result, the effect of such exercise or conversion would have been anti-dilutive. Set forth below are the securities and the weighted average number of shares of common stock underlying such securities that were excluded from our computation of EPS for the periods presented (in thousands).:
Three months ended March 31,
20212020
Restricted stock units and stock options120 260 
Convertible securities(a)
6,268 
Warrants4,921 6,268 
Total5,041 12,796 

(a)
 Three months ended June 30, Six months ended June 30,
 2020 2019 2020 2019
Restricted stock units and stock options218
 153
 219
 102
Convertible securities4,921
 4,986
 5,597
 4,715
Warrants6,273
 4,986
 7,620
 4,715
Total11,412
 10,125
 13,436
 9,532

As of December 31, 2020, we made the irrevocable election to settle all conversions of the 2024 Notes through combination settlements of cash and shares of our common stock, with a specified dollar amount of $1,000 per $1,000 principal amount of 2024 Notes and any remaining amounts in shares of our common stock.
Convertible Notes and Warrants
Refer to Note 8,7, "Long-Term DebtObligations," for information about the Company's convertible notes and warrants and related conversion and strike prices. During periods in which the average market price of the Company's common stock is above the applicable conversion price of the Company's convertible notes, or above the strike price of ourthe Company's outstanding warrants, the impact of conversion or exercise, as applicable, would be dilutive and such dilutive effect is reflected in diluted EPS. As a result, in periods where the average market price of the Company's common stock is above the conversion price or strike price, as applicable, under the treasury stockif-converted method, the Company calculates the number of shares issuable under the terms of the convertible notes and the warrants based on the average market price of the stock during the period, and includes that number in the total diluted shares outstanding for the period.
5. LITIGATION AND LEGAL PROCEEDINGS
COURT PROCEEDINGS
HuaweiLenovo
On April 28, 2020, the Company announced that it and certain of its subsidiaries had entered into a multi-year, worldwide, non-exclusive, fixed-fee patent license agreement (the "Huawei PLA") with Huawei Investment & Holding Co., Ltd. In connection with the Huawei PLA, the parties have agreed to terms for dismissal of all outstanding litigation and other proceedings among them and their affiliates, including, without limitation, the actions in the Shenzhen Intermediate People’s Court (the "Shenzhen Court") and the High Court of Justice, Business and Property Courts of England and Wales, Intellectual Property List (Chancery Division), Patents Court (the "High Court"), as more fully described below.

ChinaUK Proceeding
Information regarding the legal proceeding that Huawei Technologies Co., Ltd. and certain of its subsidiaries filed against the Company and certain of its subsidiaries in the Shenzhen Court can be found in the description of legal proceedings contained in the Company'sOn August 27, 2019, Form 10-K. On June 8, 2020, Huawei filed an application with the Shenzhen Court to dismiss the legal proceeding, and on June 9, 2020, the Company filed an application with the IP Tribunal of the China Supreme People's Court (the "SPC") to dismiss the Company's jurisdictional appeal. On July 1, 2020, the SPC dismissed the Company's jurisdictional appeal, and on July 31, 2020, the Shenzhen Court granted Huawei’s petition to dismiss the legal proceeding. Accordingly, there are no further proceedings in this matter.
U.K. Proceeding
Information regarding the legal proceeding that the Company and certain of its subsidiaries filed against Huawei Technologies Co., Ltd. and Huawei Technologies (UK) Co., Ltd.a claim in the UK High Court can be found in the descriptionagainst Lenovo Group Limited and certain of legal proceedings contained inits subsidiaries. The claim, as amended, alleges infringement of 5 of the Company's 2019 Form 10-K. On June 10, 2020, the parties submitted a draft consent orderpatents relating to the3G and/or 4G/LTE standards: European Patent (U.K.) Nos. 2,363,008; 2,421,318; 2,485,558; 2,557,714; and 3,355,537.
The UK High Court dismissingheld case management conferences on October 6, 2020 and December 16, 2020, a disclosure hearing on January 19, 2021 and pre-trial review hearings for the legal proceeding,first trial on January 28, 2021 and on June 12, 2020,February 8, 2021. At those hearings, the UK High Court formally dismissedentered a schedule for the legal proceeding, withtechnical and non-technical FRAND proceedings. Two technical trials were scheduled for March 2021 and June 2021 and the consent order being sealed on June 15, 2020. Accordingly, therenon-technical FRAND trial is scheduled in January 2022. There are no further proceedings in this matter.
Lenovo
U.K. Proceeding
Informationadditional technical trials scheduled for the remaining patents following the FRAND trial. The first technical trial was completed, and the Company is awaiting the court’s decision regarding the legal proceeding thatmerits.
District of Delaware Patent Proceeding
On August 28, 2019, the Company and certain of its subsidiaries filed against Lenovo Group Limited and certain of its subsidiaries in the High Court can be found in the description of legal proceedings contained in the Company's 2019 Form 10-K. On May 20, 2020, the High Court held a case management conference and hearing regarding Lenovo's challenges to the High Court's jurisdiction over the legal proceeding. The High Court (i) granted the Company's request to have the FRAND trial listed third after the first 2 technical trials with the remaining 3 technical trials to follow the FRAND trial, (ii) adjourned Lenovo's jurisdictional challenge until October 2020 and (iii) set other dates leading up to the trials. The five technical patent trials are each scheduled to commence within a 5-day window starting on March 1, 2021, June 21, 2021, May 9, 2022, October 3, 2022 and January 16, 2023, respectively. The non-technical FRAND trial is scheduled to commence within a 5-day window starting on January 11, 2022.
District of Delaware Patent Proceeding
Information regarding the legal proceeding that the Company and certain of its subsidiaries filed against Lenovo Holding Company, Inc. and certain of its subsidiariescomplaint in the United States District Court for the District of Delaware (the "Delaware District Court") canagainst Lenovo Holding Company, Inc. and certain of its subsidiaries alleging that Lenovo infringes 8 of InterDigital's U.S. patents—U.S. Patent Nos. 8,085,665; 8,199,726; 8,427,954; 8,619,747; 8,675,612; 8,797,873; 9,203,580; and 9,456,449—by making, using, offering for sale, and/or selling Lenovo wireless devices with 3G and/or 4G LTE capabilities. As relief, InterDigital is seeking: (a) a declaration that InterDigital is not in breach of its relevant FRAND commitments with respect to Lenovo; (b) to the extent Lenovo does not agree to negotiate a worldwide patent license, does not agree to enter into binding international arbitration to set the terms of a FRAND license, and does not agree to be foundbound by the FRAND terms to be set by the UK High Court in the descriptionseparately filed UK proceedings described above, an injunction prohibiting Lenovo from continued infringement; (c) damages, including enhanced damages for willful infringement and supplemental damages; and (d) attorneys’ fees and costs.
11

Table of legal proceedings contained in the Company's 2019 Form 10-K. Contents
On July 14,September 16, 2020, the Delaware District Court heardentered a schedule for the parties' oral arguments regarding Lenovo's motion to dismiss 6 ofcase, setting a patent jury trial for December 5, 2022.On March 8, 2021, the 8 patents-at-issue in the case. The Delaware District Court denied Lenovo's motion to dismiss in its entirety, finding in the Company's favor that the challenged claims of all 6 patents cover patent-eligible subject matter under Section 101 of the Patent Act.held a claim construction hearing. The ruling is pending.
District of Delaware Antitrust Proceeding
On April 9, 2020, Lenovo (United States) Inc. ("Lenovo") and Motorola Mobility LLC filed a complaint in the Delaware District Court against the Company and certain of its subsidiaries. The complaint alleges that the Company defendants have violated Sections 1 and 2 of the Sherman Act in connection with, among other things, their licensing of 3G and 4G standards essential patents ("SEPs"). The complaint further alleges that the Company defendants have violated their commitment to the European Telecommunications Standards Institute ("ETSI")ETSI with respect to the licensing of 3G and 4G SEPs on fair, reasonable and non-discriminatory ("FRAND")FRAND terms and conditions. The complaint seeks, among other things (i) rulings that the Company defendants have violated Sections 1 and 2 of the Sherman Act and are liable for breach of their ETSI FRAND commitments, (ii) a judgment that the plaintiffs are entitled to a license with respect to the Company's 3G and 4G SEPs on FRAND terms and conditions, and (iii) injunctions against any demand for allegedly excessive royalties or enforcement of the Company defendants' 3G and 4G U.S. SEPs against the plaintiffs or their customers via patent infringement proceedings.
On June 22, 2020, the Company filed a motion to dismiss Lenovo's Sherman Act claims with prejudice, and to dismiss Lenovo's breach of contract claim with leave to re-file as a counterclaim in the Company's legal proceeding against Lenovo in the Delaware District Court discussed above. On July 17, 2020, the United States Department of Justice filed a statement of interest supportingOral argument on the Company's motion to dismiss Lenovo's antitrust claims. was held on October 27, 2020.
On July 20, 2020, Lenovo filed its responseMarch 24, 2021, the court ruled on the Company’s motion to dismiss. The court dismissed the Company'sSherman Act Section 1 claim without prejudice, denied the motion to dismiss the Sherman Act Section 2 claim, and ACT | The App Association filed a motion for leave to file an amicus briefconsolidated the Section 2 and breach of contract claims with Company’s patent proceeding against Lenovo in support of Lenovo's antitrust claims. On August 5, 2020, the Company filed its reply in support of its motion to dismiss.Delaware District Court discussed above.

China Proceeding
On June 8, 2020, the Company confirmed that, on April 10, 2020, Lenovo (Beijing) Ltd. and certain of its affiliates filed a complaint against the Company and certain of its subsidiaries in the Beijing Intellectual Property Court (Beijing IP Court) seeking a determination of the FRAND royalty rates payable for the Company's Chinese 3G, 4G and 5G SEPs. On February 20, 2021, the Company filed an application challenging the jurisdiction of the Beijing IP Court to take up Lenovo’s complaint. The jurisdiction challenge remains pending.
Xiaomi
China Proceeding
On August 5, 2020, the Company was informed in writing by Xiaomi Corporation ("Xiaomi") that, on June 3, 2020, Xiaomi Communication Technology Co., Ltd. and certain of its affiliates filed a complaint against the Company and one of its subsidiaries in the Wuhan Intermediate People's Court (the "Wuhan Court") seeking for the Wuhan Court to determine a global FRAND rate for a license to the Company's 3G and/or 4G/LTE SEPs. The Company was informed on September 25, 2020 that the Wuhan Court held an ex parte hearing on or about September 23, 2020 and issued an order that, among other things, enjoins the Company from seeking a preliminary and permanent injunction against Xiaomi and certain of its subsidiaries for infringement of certain of the Company's patents related to 3G and/or 4G/LTE standards in the Company's case in the Delhi High Court discussed below, or elsewhere. The Wuhan Court ordered a fine of up to 1000000 yuan per day if the Company were to violate the order. The Company contends that it has not yet been properly served with Xiaomi's complaint or the Wuhan Court's anti-suit injunction order. On October 13, 2020, the Company filed an application challenging the jurisdiction of the Wuhan Court to take up Xiaomi’s complaint. On March 12, 2021, the Company’s Chinese counsel was orally informed by the Court that the Company’s application challenging jurisdiction of the Wuhan Court had been rejected. The Company has not yet been served withreceived the complaint.written decision but is challenging the decision at the IP Tribunal of the SPC.
On September 30, 2020, the Company filed a preliminary conditional response seeking reconsideration of the Wuhan Court's anti-suit injunction. In a decision dated December 4, 2020, the Wuhan Court dismissed the Company’s reconsideration petition. The Company is challenging that decision at the SPC.
12

Table of Contents
Xiaomi
India Proceeding
On July 29, 2020, the Company and certain of its subsidiaries filed 2 patent infringement actions in the Delhi High Court in New Delhi, India (the "Delhi High Court") against Xiaomi Corporation and certain of its subsidiaries ("Xiaomi").subsidiaries. The first complaint alleges infringement of 5 of the Company's patents related to 3G and/or 4G/LTE standards: Indian Patent Nos. 262910; 295912; 298719; 313036; and 320182. The second complaint alleges infringement of 3 of the Company's patents related to H.265/HEVC standards: Indian Patent Nos. 242248; 299448; and 308108. In these proceedings, the Company is seeking compensatory and punitive damages for Xiaomi's infringement of the asserted patents. The Company is further seeking, among other remedies, interim and permanent injunctive relief to prevent further infringement of the litigated patents in India, unless Xiaomi elects to take a license on terms determined to be FRAND by the Delhi High Court. The Company’s application for interim injunctive relief remains pending.
ChinaOn September 29, 2020, the Company filed an anti-anti-suit injunction application against Xiaomi in the Delhi High Court, seeking, among other things, to enjoin Xiaomi from enforcing the Wuhan Court's September 23, 2020 anti-suit injunction order described above. On October 9, 2020, the Delhi High Court granted the Company's motion and issued an ad interim injunction restraining Xiaomi from enforcing the anti-suit injunction order issued by the Wuhan Court, pending further consideration of the Company's application for an anti-anti-suit injunction at a hearing on November 25, 2020. On May 3, 2021, in an oral pronouncement by the Delhi High Court, the interim anti-anti-suit injunction was made permanent throughout the pendency of the Indian cellular case. Furthermore, the Delhi High Court stated that, if any orders or other measures are passed by the Wuhan Court related to the anti-suit injunction that result in the Company incurring a monetary penalty, then Xiaomi must deposit a corresponding, equal amount with the Delhi High Court for the Company's benefit within one week.
German Proceeding
On August 5,October 30, 2020, the Company filed an anti-anti-suit injunction application against Xiaomi in the Munich District Court, seeking to enjoin Xiaomi from continuing to pursue the Wuhan Court's September 23, 2020 anti-suit injunction order described above with respect to Germany. On November 11, 2020, the Munich District Court granted the Company's motion and issued an ex parte injunction restraining Xiaomi from enforcing pursuing the anti-suit injunction. The Company filed penalty requests for non-compliance with said court order. Xiaomi opposed the injunction and requested stay of enforcement, and an oral hearing was held on January 28, 2021. At the hearing, the Munich District Court dismissed the request for stay of enforcement. On February 25, 2021 the Munich District Court confirmed its earlier ex parte anti-anti-suit injunction against Xiaomi. This judgment was appealed by Xiaomi to the Higher Regional Court Munich.
On April 27, the Company was informed that the Munich Regional Court commenced service of three patent infringement actions filed in writingGermany against Xiaomi by Xiaomi that, on June 3, 2020, Xiaomi Communication Technology Co., Ltd. and certain of its affiliates filed a complaint against the Company and one of its subsidiaries in the Wuhan Intermediate People's Court seeking a determinationsubsidiary of the FRAND royalty terms payable forCompany. The complaints involve infringement of the Company's German patents related to 3G and 4G SEPs.cellular handsets (Patent Nos. EP 2,421,318; EP 2,485,558; and EP 3,355,537). The Company has not yet been provided with a copyis seeking injunctive relief to prevent further infringement of or served with, the complaint.
REGULATORY PROCEEDING
Investigation by National Development and Reform Commission of China
Information regarding the Company's ongoing licensing commitments to Chinese manufacturers of cellular terminal units resulting from the now-suspended investigation initiated by China’s National Development and Reform Commission can be foundasserted patents in the description of legal proceedings contained in the Company's 2019 Form 10-K.Germany.
OTHER
We are party to certain other disputes and legal actions in the ordinary course of business, including arbitrationsarbitration and legal proceedings with licensees regarding the terms of their agreements and the negotiation thereof. We do not currently believe that these matters, even if adversely adjudicated or settled, would have a material adverse effect on our financial condition, results of operations or cash flows. None of the preceding matters have met the requirements for accrual or disclosure of a potential range as of June 30, 2020.March 31, 2021.
6.BUSINESS COMBINATIONS AND OTHER TRANSACTIONS
Acquisition of Technicolor's Patent Licensing Business
On July 30, 2018, we completed our acquisition of the patent licensing business of Technicolor, a worldwide technology leader in the media and entertainment sector (the "Technicolor Patent Acquisition"). The Technicolor Patent Acquisition included the acquisition by the Company of approximately 18,000 patents and applications, across a broad range of technologies, including approximately 3,000 worldwide video coding patents and applications. Refer to our 2019 Form 10-K for further information on the Technicolor Patent Acquisition.
The Technicolor Patent Acquisition met the definition of a business combination, and, as such, was accounted for using the acquisition method of accounting. We allocated the fair value of consideration transferred to identifiable assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date. We recorded the excess of the fair value of consideration transferred over the net values of these assets and liabilities as goodwill.

Acquisition of Technicolor's Research & Innovation Unit
On May 31, 2019, we completed the acquisition of the Research & Innovation unit of Technicolor SA (the "R&I Acquisition"). The R&I Acquisition expanded the Company’s research capabilities in video coding, Internet of Things ("IoT") and smart home, imaging sciences, augmented reality and virtual reality, and artificial intelligence and machine learning technologies. The Technicolor R&I unit was the driving creative force behind the patent portfolio that was acquired in the Technicolor Patent Acquisition discussed above. Refer to our 2019 Form 10-K for further information on the R&I Acquisition.

The R&I Acquisition met the definition of an asset acquisition and was accounted for using the cost accumulation and allocation model. There was no cash consideration for the R&I Acquisition. As consideration for the R&I Acquisition, the jointly funded R&D collaboration that was entered into as part of the Technicolor Patent Acquisition was terminated. Technicolor will continue to fund research to be performed by the R&I unit (which is now part of InterDigital R&I) for certain limited projects for a specified time period, subject to renewal. The Company also assumed certain employee-related liabilities, including obligations for certain defined benefit post-retirement plans for the acquired R&I unit employees, which are further discussed below. Additionally, Technicolor agreed to reduce its rights under the revenue-sharing arrangement entered into as part of the Technicolor Patent Acquisition, as further discussed below.
Contingent Consideration
The original revenue-sharing arrangement between the Company and Technicolor created a contingent consideration liability upon closing of the Technicolor Patent Acquisition in third quarter 2018. Refer to our 2019 Form 10-K for further information on the initial contingent consideration liability which was accounted for at fair value each reporting period.
Under the amended revenue-sharing arrangement described above, Technicolor will now receive 42.5% of future cash receipts from new licensing efforts from the Madison Arrangement (as defined below) only, subject to certain conditions and hurdles, but will no longer receive revenue-sharing from other licensing efforts in the consumer electronics field outside of the Madison Arrangement. We determined that the initial contingent consideration liability from the Technicolor Patent Acquisition was significantly modified in conjunction with the R&I Acquisition, and, as such, the contingent consideration liability is now accounted for under ASC 450 - Contingencies under the asset acquisition framework when the liability is deemed probable and estimable. As of June 30, 2020, the contingent consideration liability from the amended revenue-sharing arrangement was deemed not probable and estimable and is therefore not reflected within the consolidated financial statements.
Defined Benefit Plans
In connection with the Technicolor Patent Acquisition and the R&I Acquisition, we assumed certain defined benefit plans which are accounted for in accordance with ASC 715 - Compensation - Retirement Benefits. These plans include a retirement lump sum indemnity plan and jubilee plan, both of which provide benefit payments to employees based upon years of service and compensation levels. As of June 30, 2020, the combined accumulated projected benefit obligation related to these plans totaled $6.4 million. Service cost and interest cost for the combined plans totaled $0.2 million for the six months ended June 30, 2020. These plans are not required to be funded and were not funded as of June 30, 2020.
Madison Arrangement
In conjunction with the Technicolor Patent Acquisition, effective July 30, 2018, we assumed Technicolor’s rights and obligations under a joint licensing program with Sony Corporation ("Sony") relating to digital televisions and standalone computer display monitors, which commenced in 2015 and is referred to as the "Madison Arrangement." We also assumed Technicolor's role as sole licensing agent for the Madison Arrangement. As licensing agent, we are responsible for making decisions regarding the prosecution and maintenance of the combined patent portfolio and the licensing and enforcement of the combined patent portfolio in the field of use of digital TVs and computer display monitors on an exclusive basis during the specified term in exchange for an agent fee. The Madison Arrangement falls under the scope of ASC 808, Collaborative Arrangements ("ASC 808"). Refer to our 2019 Form 10-K for further information on the Madison Arrangement.
Long-term debt
An affiliate of CPPIB Credit Investments Inc. ("CPPIB Credit"), a wholly owned subsidiary of Canada Pension Plan Investment Board, is a third-party investor in the Madison Arrangement. CPPIB Credit has made certain payments to Technicolor and Sony and has agreed to contribute cash to fund certain capital reserve obligations under the arrangement in exchange for a percentage of future revenues, specifically through September 11, 2030 in regard to the Technicolor patents.
Upon our assumption of Technicolor’s rights and obligations under the Madison Arrangement, our relationship with CPPIB Credit meets the criteria in ASC 470-10-25 - Sales of Future Revenues or Various Other Measures of Income ("ASC 470"), which relates to cash received from an investor in exchange for a specified percentage or amount of revenue or other measure of income of a particular product line, business segment, trademark, patent, or contractual right for a defined period. Under this guidance, we recognized the fair value of our contingent obligation to CPPIB Credit, as of the acquisition date, as long-term debt in our condensed consolidated balance sheet. This initial fair value measurement was based on the perspective of a market participant and included significant unobservable inputs which are classified as Level 3 inputs within the fair value hierarchy. The fair value of the long-term debt as of June 30, 2020 and December 31, 2019 is disclosed within Note 7. Our repayment obligations are contingent upon future royalty revenues generated from the Madison Arrangement and there are no minimum or maximum payments under the arrangement.

Under ASC 470, amounts recorded as debt are amortized under the interest method. At each reporting period, we will review the discounted expected future cash flows over the life of the obligation. The Company made an accounting policy election to utilize the catch-up method when there is a change in the estimated future cash flows, whereby we will adjust the carrying amount of the debt to the present value of the revised estimated future cash flows, discounted at the original effective interest rate, with a corresponding adjustment recognized as interest expense within “Interest Expense” in the condensed consolidated statements of income. The effective interest rate as of the acquisition date was approximately 14.5%. This rate represents the discount rate that equates the estimated future cash flows with the fair value of the debt as of the acquisition date, and is used to compute the amount of interest to be recognized each period based on the estimated life of the future revenue streams. During the three and six months ended June 30, 2020, we recognized $0.7 million and $1.5 million, respectively, of interest expense related to this debt and during the three and six months ended June 30, 2019, we recognized $0.6 million and $1.3 million, respectively. This was included within “Interest Expense” in the condensed consolidated statements of income. Any future payments made to CPPIB Credit, or additional proceeds received from CPPIB Credit, will decrease or increase the long-term debt balance accordingly.
Restricted cash
Under the Madison Arrangement, the parties reserve cash in bank accounts to fund our activities to manage the portfolios. These accounts are custodial accounts for which the funds are restricted for this purpose. Refer to Note 7, "Cash, Concentration of Credit Risk and Fair Value of Financial Instruments," for a reconciliation of total cash, cash equivalents and restricted cash as of June 30, 2020 and December 31, 2019 to the captions within the condensed consolidated balance sheets.
Commitments
To receive consent from both Sony and CPPIB Credit to assume the rights and responsibilities of Technicolor under the Madison Arrangement, we committed to contributing cash to fund shortfalls in the Madison Arrangement, up to a maximum of $25.0 million, through 2020. A shortfall funding is only required in the scenario where the restricted cash is not sufficient to fund current obligations. In the event that we fund a shortfall, any surplus cash resulting from subsequent royalty receipts would be used to repay our shortfall funding plus 25% interest in advance of distributions of royalties to either Sony or CPPIB Credit, assuming they have not participated in the funding of the shortfall. As of June 30, 2020, we have not contributed any shortfall funding.
Transaction costs
Transaction and integration related costs related to the above transactions for the three months ended June 30, 2020 and 2019 were $0.6 million and $1.7 million, respectively. Transaction and integration related costs related to the above transactions for the six months ended June 30, 2020 and 2019 were $1.2 million and $4.8 million, respectively. The majority of these costs were recorded within “Patent administration and licensing” and “Selling, general and administrative” expenses in the condensed consolidated statements of income.
7. CASH, CONCENTRATION OF CREDIT RISK AND FAIR VALUE OF FINANCIAL INSTRUMENTS
Cash, Cash Equivalents and Restricted Cash
Cash, cash equivalents and restricted cash currently consists of money market and demand accounts. The following table provides a reconciliation of total cash, cash equivalents and restricted cash as of June 30, 2020,March 31, 2021, December 31, 20192020 and June 30, 2019March 31, 2020 to the captions within the condensed consolidated balance sheets and condensed consolidated statements of cash flows (in thousands).:
 March 31,December 31,March 31,
 202120202020
Cash and cash equivalents$396,156 $473,474 $515,793 
Restricted cash included within prepaid and other current assets3,688 3,108 12,851 
Restricted cash included within other non-current assets1,081 1,081 1,081 
Total cash, cash equivalents and restricted cash$400,925 $477,663 $529,725 
 June 30, December 31, June 30,
 2020 2019 2019
Cash and cash equivalents$670,292
 $745,491
 $531,698
Restricted cash included within prepaid and other current assets5,906
 10,526
 11,465
Restricted cash included within other non-current assets1,081
 1,081
 
Total cash, cash equivalents and restricted cash$677,279
 $757,098
 $543,163
13


Table of Contents
Concentration of Credit Risk and Fair Value of Financial Instruments
Financial instruments that potentially subject us to concentration of credit risk consist primarily of cash equivalents, short-term investments, and accounts receivable. We place our cash equivalents and short-term investments only in highly rated financial instruments and in United States government instruments.

Our accounts receivable and contract assets are derived principally from patent license and technology solutions agreements. As of June 30, 2020March 31, 2021 and December 31, 2019, seven2020, five licensees comprised 71%50% and 73%53%, respectively, of our net accounts receivable balance. We perform ongoing credit evaluations of our licensees, who generally include large, multinational, wireless telecommunications equipment manufacturers. We believe that the book values of our financial instruments approximate their fair values.
Fair Value Measurements
We use various valuation techniques and assumptions when measuring the fair value of our assets and liabilities. We utilize market data or assumptions that market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. This guidance established a hierarchy that prioritizes fair value measurements based on the types of input used for the various valuation techniques (market approach, income approach and cost approach). The levels of the hierarchy are described below:
Level 1 Inputs — Level 1 includes financial instruments for which quoted market prices for identical instruments are available in active markets.
Level 2 Inputs — Level 2 includes financial instruments for which there are inputs other than quoted prices included within Level 1 that are observable for the instrument such as quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets with insufficient volume or infrequent transactions (less active markets) or model-driven valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data, including market interest rate curves, referenced credit spreads and pre-payment rates.
Level 3 Inputs — Level 3 includes financial instruments for which fair value is derived from valuation techniques including pricing models and discounted cash flow models in which one or more significant inputs are unobservable, including the Company’s own assumptions. The pricing models incorporate transaction details such as contractual terms, maturity and, in certain instances, timing and amount of future cash flows, as well as assumptions related to liquidity and credit valuation adjustments of marketplace participants.
Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of financial assets and financial liabilities and their placement within the fair value hierarchy. We use quoted market prices for similar assets to estimate the fair value of our Level 2 investments.
Recurring Fair Value Measurements
Our financial assets are generally included within short-term investments on our condensed consolidated balance sheets, unless otherwise indicated. Our financial assets and liabilities that are accounted for at fair value on a recurring basis are presented in the tables below as of June 30, 2020March 31, 2021 and December 31, 20192020 (in thousands):
 Fair Value as of March 31, 2021
 Level 1Level 2Level 3Total
Assets:    
Money market and demand accounts (a)
$386,825 $$$386,825 
Commercial paper (b)
274,108 274,108 
U.S. government securities155,752 155,752 
Corporate bonds, asset backed and other securities72,799 72,799 
  Total$386,825 $502,659 $$889,484 
14

Table of Contents
 Fair Value as of December 31, 2020
 Level 1Level 2Level 3Total
Assets:    
Money market and demand accounts (a)
$397,522 $$$397,522 
Commercial paper(b)
285,242 285,242 
U.S. government securities166,223 166,223 
Corporate bonds, asset backed and other securities81,849 81,849 
  Total$397,522 $533,314 $$930,836 

(a)Primarily included within cash and cash equivalents.
 Fair Value as of June 30, 2020
 Level 1 Level 2 Level 3 Total
Assets:       
Money market and demand accounts (a)$677,279
 $
 $
 $677,279
Commercial paper (b)
 26,296
 
 26,296
U.S. government securities
 53,047
 
 53,047
Corporate bonds, asset backed and other securities
 89,609
 
 89,609
  Total$677,279
 $168,952
 $
 $846,231

(b)

 Fair Value as of December 31, 2019
 Level 1 Level 2 Level 3 Total
Assets:       
Money market and demand accounts (a)$757,098
 $
 $
 $757,098
Commercial paper (b)
 
 
 
U.S. government securities
 105,702
 
 105,702
Corporate bonds, asset backed and other securities
 73,502
 
 73,502
  Total$757,098
 $179,204
 $
 $936,302

(a)Primarily included within cash and cash equivalents.
(b)As of March 31, 2021 and December 31, 2020, $14.1 million and $80.1 million, respectively, of June 30, 2020 and December 31, 2019, zero commercial paper was included within cash and cash equivalents.
Level 3 Fair Value Measurements
Contingent consideration
As discussed in Note 6, "Business Combinations and Other Transactions," we completed the Technicolor Patent Acquisition during third quarter 2018. In conjunction with the Technicolor Patent Acquisition, we initially recognized a contingent consideration liability which was measured at fair value on a recurring basis using significant unobservable inputs classified as Level 3 measurements within the fair value hierarchy. We utilized a Monte Carlo simulation model to determine the estimated fair value of the contingent consideration liability through first quarter 2019. A Monte Carlo simulation uses random numbers together with volatility assumptions to generate individual paths, or trials, for variables of interest governed by a Geometric Brownian Motion in a risk-neutral framework.
As discussed in Note 6, "Business Combinations and Other Transactions," we completed the R&I Acquisition during second quarter 2019. The transaction met the definition of an asset acquisition and was accounted for using the cost accumulation and allocation model. As part of the R&I Acquisition, Technicolor reduced its rights to the revenue-sharing arrangement that created the initial contingent consideration liability from the Technicolor Patent Acquisition. We determined that the initial contingent consideration liability from the Technicolor Patent Acquisition was significantly modified in conjunction with the R&I Acquisition, and, as such, the contingent consideration liability will now be accounted for under ASC 450 - Contingencies under the asset acquisition framework when the liability is deemed probable and estimable. Since the contingent consideration liability arising from the amended revenue-sharing arrangement was not probable and estimable as of the acquisition date, the carrying value of the previous contingent consideration liability was derecognized, which resulted in a $20.5 million gain which was included within "Other Income, Net” in the condensed consolidated statement of income for second quarter 2019. Therefore, effective as of the completion of the R&I Acquisition on May 31, 2019, the contingent consideration liability was no longer a Level 3 fair value recurring measurement.
Non-Recurring Fair Value Measurements
Investments in Other Entities
During first quarterthe three months ended March 31, 2020, we recognized a $5.5 million unrealized gain resulting from observable price changes in orderly transactions of one of our long-term strategic investments, which was included within “Other Income, Net” in the condensed consolidated statement of income.
Lease Assets
During first quarterthe three months ended March 31, 2020, we recognized a $1.1 million impairment, comprised of $0.8 million of Property, Plant, and Equipment, and $0.3 million of Right of Use Asset related to the abandonment of 1 of our leased properties, which was included within “Operating Expense” in the condensed consolidated statement of income.
Fair Value of Long-Term Debt
2024 and 2020 Senior Convertible Notes
The principal amount, carrying value and related estimated fair value of the Company's senior convertible debt reported in the condensed consolidated balance sheets as of June 30, 2020March 31, 2021 and December 31, 20192020 was as follows (in thousands). The aggregate fair value of the principal amount of the senior convertible long-term debt is a Level 2 fair value measurement.

 June 30, 2020 December 31, 2019
 
Principal
Amount
 
Carrying
Value
 
Fair
Value
 
Principal
Amount
 Carrying
Value
 
Fair
Value
Senior Convertible Long-Term Debt$400,000
 $336,544
 $396,240
 $494,909
 $423,657
 $492,969

March 31, 2021December 31, 2020
Principal
Amount
Carrying
Value
Fair
Value
Principal
Amount
Carrying
Value
Fair
Value
Senior Convertible Long-Term Debt$400,000 $394,404 $422,000 $400,000 $343,821 $418,760 
Technicolor Patent Acquisition Long-term Debt
As more fully disclosed in Note 6, "Business Combinations and Other Transactions," we recognized long-term debt in conjunction with the Technicolor Patent Acquisition. The carrying value and related estimated fair value of the Technicolor Patent Acquisition long-term debt reported in the condensed consolidated balance sheets as of June 30, 2020March 31, 2021 and December 31, 20192020 was as follows (in thousands). The aggregate fair value of the Technicolor Patent Acquisition long-term debt is a Level 3 fair value measurement.
March 31, 2021December 31, 2020
Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
Technicolor Patent Acquisition Long-Term Debt$24,992 $26,762 $24,171 $27,016 
 June 30, 2020 December 31, 2019
 
Carrying
Value
 
Fair
Value
 Carrying
Value
 
Fair
Value
Technicolor Patent Acquisition Long-Term Debt$22,576
 $26,241
 $21,101
 $23,305
15


Table of Contents
8.7. LONG-TERM DEBTOBLIGATIONS
Technicolor Patent Acquisition Long-Term Debt
ReferOn July 30, 2018, we completed our acquisition of the patent licensing business of Technicolor SA ("Technicolor"), a worldwide technology leader in the media and entertainment sector (the "Technicolor Patent Acquisition"). In conjunction with the Technicolor Patent Acquisition we assumed Technicolor’s rights and obligations under a joint licensing program with Sony Corporation ("Sony") relating to digital televisions and standalone computer display monitors, which commenced in 2015 and is referred to as the "Madison Arrangement." An affiliate of CPPIB Credit Investments Inc. ("CPPIB Credit"), a wholly owned subsidiary of Canada Pension Plan Investment Board, is a third-party investor in the Madison Arrangement. CPPIB Credit has made certain payments to Technicolor and Sony and has agreed to contribute cash to fund certain capital reserve obligations under the arrangement in exchange for a percentage of future revenues, specifically through September 11, 2030 in regard to the Technicolor patents.
Upon our assumption of Technicolor’s rights and obligations under the Madison Arrangement, our relationship with CPPIB Credit meets the criteria in ASC 470-10-25 - Sales of Future Revenues or Various Other Measures of Income ("ASC 470"), which relates to cash received from an investor in exchange for a specified percentage or amount of revenue or other measure of income of a particular product line, business segment, trademark, patent, or contractual right for a defined period. Under this guidance, we recognized the fair value of our contingent obligation to CPPIB Credit, as of the acquisition date, as long-term debt in our condensed consolidated balance sheet. This initial fair value measurement was based on the perspective of a market participant and included significant unobservable inputs which are classified as Level 3 inputs within the fair value hierarchy. The fair value of the long-term debt as of March 31, 2021 and December 31, 2020 is disclosed within Note 6, "Business Combinations and Other Transactions," and Note 7, "Cash, Concentration of Credit Risk and Fair Value of Financial InstrumentsInstruments.," for information regardingOur repayment obligations are contingent upon future royalty revenues generated from the Madison Arrangement and there are no minimum or maximum payments under the arrangement.
Under ASC 470, amounts recorded as debt are amortized under the interest method. At each reporting period, we will review the discounted expected future cash flows over the life of the obligation. The Company made an accounting policy election to utilize the catch-up method when there is a change in the estimated future cash flows, whereby we will adjust the carrying amount of the debt to the present value of the revised estimated future cash flows, discounted at the original effective interest rate, with a corresponding adjustment recognized as interest expense within “Interest Expense” in the condensed consolidated statements of income. The effective interest rate as of the acquisition date was approximately 14.5%. This rate represents the discount rate that equates the estimated future cash flows with the fair value of the debt as of the acquisition date, and is used to compute the amount of interest to be recognized each period based on the estimated life of the future revenue streams. During the three months ended March 31, 2021 and 2020, we recognized $0.8 million and $0.7 million, respectively, of interest expense related to this debt. This was included within “Interest Expense” in the condensed consolidated statements of income. Any future payments made to CPPIB Credit, or additional proceeds received from CPPIB Credit, will decrease or increase the long-term debt recognized in conjunction with the Technicolor Patent Acquisition.balance accordingly.
2024 Senior Convertible Notes, and Related Note Hedge and Warrant Transactions
On June 3, 2019 we issued $400.0 million in aggregate principal amount of 2.00% Senior Convertible Notes due 2024 (the "2024 Notes"). The net proceeds from the issuance of the 2024 Notes, after deducting the initial purchasers' transaction fees and offering expenses, were approximately $391.6 million. The 2024 Notes (i) bear interest at a rate of 2.00% per year, payable in cash on June 1 and December 1 of each year, commencing on December 1, 2019, and (ii) mature on June 1, 2024, unless earlier converted or repurchased. The effective interest rate of the 2024 Notes is 2.02%.
The 2024 Notes are convertible into cash, shares of our common stock or a combination thereof, at our election, at an initial conversion rate of 12.3018 shares of our common stock per $1,000 principal amount of 2024 Notes (which is equivalent to an initial conversion price of approximately $81.29 per share), as adjusted pursuant to the terms of the indenture governing the 2024 Notes (the "Indenture"). The conversion rate of the 2024 Notes, and thus the conversion price, may be adjusted in certain circumstances, including in connection with a conversion of the 2024 Notes made following certain fundamental changes and under other circumstances set forth in the Indenture. It is our current intent and policyAs of December 31, 2020, we made the irrevocable election to settle all conversions of the 2024 Notes through combination settlements of cash and shares of our common stock, with a specified dollar amount of $1,000 per $1,000 principal amount of 2024 Notes and any remaining amounts in shares of our common stock.
The 2024 Notes are senior unsecured obligations of the Company and rank equally in right of payment with any of our current and any future senior unsecured indebtedness. The 2024 Notes are effectively subordinated to all of our future secured indebtedness to the extent of the value of the related collateral, and the 2024 Notes are structurally subordinated to indebtedness and other liabilities, including trade payables, of our subsidiaries.
16

On May 29 and May 31, 2019, in connection with the offering of the 2024 Notes, we entered into convertible note hedge transactions (collectively, the “2024"2024 Note Hedge Transactions”Transactions") that cover, subject to customary anti-dilution adjustments, approximately 4.9 million shares of common stock, in the aggregate, at a strike price that initially corresponds to the initial conversion price of the 2024 Notes, subject to adjustment, and are exercisable upon any conversion of the 2024 Notes. On May 29 and May 31, 2019, we also entered into privately negotiated warrant transactions (collectively, the “2024"2024 Warrant Transactions”Transactions" and, together with the 2024 Note Hedge Transactions, the “2024"2024 Call Spread Transactions”Transactions"), whereby we sold warrants to acquire, subject to customary anti-dilution adjustments, approximately 4.9 million shares of common stock at an initial strike price of approximately $109.43 per share, subject to adjustment.
Refer toThere have been no material changes regarding the 2024 Notes and 2024 Call Spread Transactions from the disclosures included in Note 10, "Obligations""Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of the 20192020 Form 10-K for further information regarding the 2024 Notes and 2024 Call Spread Transactions, including the accounting treatment of these transactions.

10-K.
2020 Senior Convertible Notes and Related Note Hedge and Warrant Transactions
On March 11, 2015, we issued $316.0 million in aggregate principal amount of 1.50% Senior Convertible Notes due 2020 (the "2020 Notes"). The 2020 Notes bore interest at a rate of 1.50% per year payable in cash on March 1 and September 1 of each year, which commenced September 1, 2015, and matured on March 1, 2020. In connection with the initial offering of the 2020 Notes, on March 5 and March 9, 2015, we entered into convertible note hedge transactions (the “2020 Note Hedge Transactions”) that initially covered approximately 4.4 million shares of common stock at a strike price that initially corresponded to the initial conversion price of the 2020 Notes and are exercisable upon any conversion of the 2020 Notes. On March 5 and March 9, 2015, we also entered into warrant transactions (collectively, the "2020 Warrant Transactions" and, together with the 2020 Note Hedge Transactions, the "2020 Call Spread Transactions") to initially acquire, subject to customary anti-dilution adjustments, approximately 4.4 million shares of common stock. The warrants became exercisable and expire in daily tranches over a three and a half month period which started in June 2020.
On May 29, 2019, in connection with the partial repurchase of $221.1 million in aggregate principal amount of the 2020 Notes, the Company entered into partial unwind agreements that, among other things, reduced the number of warrants exercisable under the 2020 Warrant Transactions. As a result of the partial unwind transactions, approximately 1.3 million shares of common stock in the aggregate were covered under each of the 2020 Note Hedge Transactions and the 2020 Warrant Transactions as of June 30, 2020. As of June 30, 2020, the warrants under the 2020 Warrant Transactions had a strike price of approximately $85.81 per share, as adjusted. Refer to Note 10, "Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of the 2019 Form 10-K for further information regarding the 2020 Notes and 2020 Call Spread Transactions.
As described above, the 2020 Notes matured on March 1, 2020. On the maturity date, the outstanding balance of $94.9 million under the 2020 Notes was repaid in full.
The following table reflects the carrying value of the 2024 Notes and 2020 Notesour Long-Term Debt as of June 30, 2020March 31, 2021 and December 31, 20192020 (in thousands):
March 31, 2021December 31, 2020
Principal$400,000 $400,000 
Less:
Unamortized interest discount(a)
(51,567)
Deferred financing costs(a)
(5,596)(4,612)
Net carrying amount of the 2024 Notes$394,404 $343,821 

 June 30, 2020 December 31, 2019
 2024 Notes 2024 Notes 2020 Notes Total
Principal$400,000
 $400,000
 $94,909
 $494,909
Less:      

Unamortized interest discount(58,246) (64,724) (669) $(65,393)
Deferred financing costs(5,210) (5,789) (70) $(5,859)
Net carrying amount of 2024 and 2020 Notes$336,544
 $329,487
 $94,170
 $423,657

(a)
Due to the adoption of ASU 2020-06 on January 1, 2021, the unamortized interest discount was reclassified back to the carrying value of the 2024 Notes. Refer to Note 1, "Basis of Presentation", for further information regarding this adoption.
The following table presents the amount of interest cost recognized, which is included within "Interest Expense" in our condensed consolidated statements of income, for the three months ended March 31, 2021 and six months ended June 30,March 31, 2020 and June 30, 2019 relating to the contractual interest coupon, accretion of the debt discount, and the amortization of deferred financing costs of the 2024 Notes and 2020 Notes (in thousands):
Three months ended March 31,
20212020
2024 Notes2024 Notes2020 NotesTotal
Contractual coupon interest$2,000 $2,000 $237 $2,237 
Accretion of debt discount(a)
3,222 669 3,891 
Amortization of deferred financing costs398 288 70 358 
Total$2,398 $5,510 $976 $6,486 
 Three months ended June 30,
 2020 2019
 2024 Notes 2024 Notes 2020 Notes Total
Contractual coupon interest$2,000
 $600
 $927
 $1,527
Accretion of debt discount3,255
 1,101
 2,520
 3,621
Amortization of deferred financing costs291
 98
 266
 364
Total$5,546
 $1,799
 $3,713
 $5,512


(a)
Due to the adoption of ASU 2020-06, there is no longer accretion of the debt discount starting January 1, 2021. Refer to Note 1, "Basis of Presentation", for further information regarding this adoption.

Technicolor Contingent Consideration
As part of the Technicolor Patent Acquisition, we entered into a revenue-sharing arrangement with Technicolor that created a contingent consideration liability. Under the revenue-sharing arrangement, Technicolor receives 42.5% of future cash receipts from new licensing efforts from the Madison Arrangement only, subject to certain conditions and hurdles. As of March 31, 2021, the contingent consideration liability from the revenue-sharing arrangement was deemed not probable and estimable and is therefore not reflected within the consolidated financial statements.
 Six months ended June 30,
 2020 2019
 2024 Notes 2020 Notes Total 2024 Notes 2020 Notes Total
Contractual coupon interest$4,000
 $237
 $4,237
 $600
 $2,112
 $2,712
Accretion of debt discount6,477
 669
 7,146
 1,101
 5,735
 6,836
Amortization of deferred financing costs579
 70
 649
 98
 613
 711
Total$11,056
 $976
 $12,032
 $1,799
 $8,460
 $10,259
17


Table of Contents
9.8. VARIABLE INTEREST ENTITIES
As further discussed below, we are the primary beneficiary of 3 variable interest entities. As of June 30,March 31, 2021, the combined book values of the assets and liabilities associated with these variable interest entities included in our condensed consolidated balance sheet were $56.4 million and $6.1 million, respectively. Assets included $18.9 million of cash and cash equivalents, $2.4 million of accounts receivable and prepaid assets, and $35.1 million of patents, net. As of December 31, 2020, the combined book values of the assets and liabilities associated with these variable interest entities included in our condensed consolidated balance sheet were $62.7$62.0 million and $5.3$5.8 million, respectively. Assets included $22.3$24.5 million of cash and cash equivalents, $2.3 million of accounts receivable and prepaid assets, and $38.1$35.2 million of patents, net. As of December 31, 2019, the combined book values of the assets and liabilities associated with these variable interest entities included in our condensed consolidated balance sheet were $60.6 million and $5.4 million, respectively. Assets included $18.5 million of cash and cash equivalents, $1.7 million of accounts receivable, $39.3 million of patents, net, and $1.3 million of other non-current assets.
Chordant
On January 31, 2019, we launched the Company’s Chordant™ business as a standalone company. The spinout of the unit, which now includes an affiliate of Sony as an investor along with the Company, gives Chordant added independence and flexibility in driving into its core operator and smart city markets. Chordant is a variable interest entity and we have determined that we are the primary beneficiary for accounting purposes and consolidate Chordant.  For the three and six months ended June 30,March 31, 2021 and 2020, we have allocated approximately $0.2$0.1 million and $0.5$0.3 million, respectively, of Chordant's net loss to noncontrolling interests held by other parties and for the three and six months ended June 30, 2019, we allocated approximately $0.4 million and $0.7 million, respectively.parties.
Convida Wireless
Convida Wireless was launched in 2013 and most recently renewed in 2018 to combine Sony's consumer electronics expertise with our pioneering IoT expertise to drive IoT communications and connectivity.  Based on the terms of the agreement, the parties will contribute funding and resources for additional research and platform development, which we will perform.  SCP IP Investment LLC, an affiliate of Stephens Inc., is a minority investor in Convida Wireless.
Convida Wireless is a variable interest entity. Based on our provision of research and platform development services to Convida Wireless, we have determined that we remain the primary beneficiary for accounting purposes and will continue to consolidate Convida Wireless.  For each of the three and six months ended June 30,March 31, 2021 and 2020, we have allocated approximately $1.5 million and $2.9 million, respectively, of Convida Wireless's net loss to noncontrolling interests held by other parties and for the three and six months ended June 30, 2019, we allocated approximately $1.0 million and $2.1 million, respectively.parties.
Signal Trust for Wireless Innovation
During 2013, we announced the establishment of the Signal Trust for Wireless Innovation (the “Signal Trust”“Trust”), the goal of which iswas to monetize a large InterDigital patent portfolio primarily related to 3G cellular infrastructure. In response to a request from Signal Trust, in first quarter 2021 we provided our consent, as major beneficiary, to dissolve Signal Trust.
The more than 500 patents and patent applications transferred from InterDigital to the Signal Trust focus primarily on 3G and LTE technologies, and were developed by InterDigital's engineers and researchers over more than a decade, with a number of the innovations contributing to the worldwide standards process.
InterDigital is the primary beneficiary of the Signal Trust. The distributions from the Signal Trust will support continued research related to cellular wireless technologies.  A small portion of the proceeds from the Signal Trust will be used to fund, through the Signal Foundationhas been accounted for Wireless Innovation, scholarly analysis of intellectual property rights and the technological, commercial and creative innovations they facilitate.
The Signal Trust isas a variable interest entity. Based on the terms of the trust agreement, we have determined that we are the primary beneficiary for accounting purposes and musthave included the Trust in our consolidated financial statements. Pending the dissolution of the Trust, we will continue to consolidate the Signal Trust.Trust in our consolidated financial statements.

10.9. OTHER INCOME, (EXPENSE), NET
The amounts included in "Other income, net" in the condensed consolidated statements of income for the three and six months ended June 30,March 31, 2021 and 2020 and 2019 were as follows (in thousands):
Three months ended March 31,
20212020
Interest and investment income$553 $2,877 
Other171 3,146 
Other income, net$724 $6,023 
 Three months ended June 30, Six months ended June 30,
 2020 2019 2020 2019
Interest and investment income$1,342

$2,590
 $4,219

$6,486
Gain on asset acquisition and sale of business

14,175
 

14,175
Loss on extinguishment of long-term debt

(5,488) 

(5,488)
Other2,447

1,077
 5,593

796
Other income, net$3,789
 $12,354
 $9,812
 $15,969
The decrease in Other income, net between periods was primarily driven by a net $4.4 million gain in the three months ended March 31, 2020, primarily resulting from observable price changes of one of our long-term strategic investments, partially offset by a $1.9 million gain in the three months ended March 31, 2021 on a contract termination. Additionally, Interest and investment income decreased $2.3 million in the three months ended March 31, 2021 due to lower rates of return on our short-term investments.
18

10.    PREPAID AND OTHER CURRENT ASSETS
The amounts included in "Prepaid and other current assets" in the consolidated balance sheet as of March 31, 2021 and December 31, 2020 were as follows (in thousands):

March 31, 2021December 31, 2020
Tax receivables$70,334 $69,592 
Prepaid assets12,045 10,899 
Unsettled repurchase of common stock1,994 
Operating lease receivable817 
Other current assets3,290 2,916 
Total Prepaid and other current assets$87,663 $84,224 
19

Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
OVERVIEW
The following discussion should be read in conjunction with the unaudited, condensed consolidated financial statements and notes thereto contained in Part I, Item 1 of this Quarterly Report on Form 10-Q, in addition to our 20192020 Form 10-K, other reports filed with the SEC and the Statement Pursuant to the Private Securities Litigation Reform Act of 1995 — Forward-Looking Statements below.
Throughout the following discussion and elsewhere in this Form 10-Q, we refer to “recurring revenues” and “non-recurring revenues.”  Recurring revenues are comprised of “current patent royalties” and “current technology solutions revenue.”  Non-recurring revenues are comprised of “non-current patent royalties,” which primarily include past patent royalties and royalties from static agreements, as well as “patent sales.”
Huawei AgreementThroughout the following discussion and elsewhere in this Form 10-Q, we refer to the “Technicolor Acquisitions” which is the combined Technicolor Patent Acquisition, which closed in July 2018 and was integrated throughout 2019, and the R&I Acquisition, which closed in May 2019. Refer to Note 5, "Business Combinations and Other Transactions," within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of the 2020 Form 10-K for further information on the Technicolor Acquisitions.
Recurring Revenue
DuringFirst quarter 2021 recurring revenue was $78.6 million, compared to recurring revenue of $75.5 million in first quarter 2020, a 4% year-over-year increase. The increase was primarily driven by five new patent license agreements signed over the last twelve months, including Huawei signed in second quarter 2020, we signed a multi-year, worldwide, non-exclusive, fixed-feeand was partially offset by the reduction from the expired LG patent license agreement with Huawei Investment & Holding Co., Ltd. (“Huawei”), oneagreement. In April 2021, LG confirmed that it is exiting the smartphone market. Refer to "Results of the world’s leaders in the information and communications technology industry (the “Huawei PLA”). The Huawei PLA covers the sale of certain of Huawei’s 3G, 4G and 5G terminal unit products, including the use of Wi-Fi and HEVC in those products, and extends through December 31, 2023. InterDigital and Huawei have also agreedOperations --First Quarter 2021 Compared to dismiss all pending litigation between the companies as more fully discussed in Note 5, "Litigation and Legal ProceedingsFirst Quarter 2020" for further discussion of this Quarterly Report on Form 10-Q.our 2021 revenue.
Impact of COVID-19 Pandemic
In March 2020, the World Health Organization categorized the novel coronavirus ("COVID-19") as a pandemic, and it continues to significantly impact the United States and the rest of the world. Though the COVID-19 pandemic and the measures taken to reduce its transmission, such as the imposition of social distancing and orders to work-from-home and shelter-in-place, have altered our business environment and overall working conditions, we continue to believe that our strategic strengths, including talent, our strong balance sheet, stable revenue base, and the strength of our patent portfolio, will allow us to weather a rapidly changing marketplace.
While the environment in which we conduct our business and our overall working conditions have changed as a result of the COVID-19 pandemic, we experienced a limited impact on our operations and financial position during first half 2020.three months ended March 31, 2021. As discussed in our 20192020 Form 10-K, fixed-fee royalties accounted for nearly 90%89% of our revenues in 2019. These fixed-fee revenues are not directly affected by our related licensees’ success in the market or the general economic climate.2020. To that end, in first half 2020,three months ended March 31, 2021, we did not experience a significant impact on our revenue due to COVID-19. Meanwhile, we have taken steps to protect the health and safety of our employees and their families, with our entire worldwide workforce continuing to work remotely.remotely with limited exceptions. We are currently anticipating a return to in-person work in September 2021, with certain locations potentially opening earlier on a limited and voluntary basis. Despite thesethe remote working conditions, our business activities have continued to operate with minimal interruption, and we expect them to continue to operate efficiently. AllNearly all work-related travel has beencontinues to remain suspended, and we have conducted our licensing negotiations, investor presentations and participation in standards organizations and industry events virtually. Between March 12, 2020, when we began to work almost entirely remotely, and March 31, 2021, we successfully concluded six new patent license agreements that we estimate will result in aggregate revenues exceeding $180.0 million over the two- to four- year terms of those agreements. Our financial position remains strong, we believe we have sufficient access to capital if needed, and we remain committed to our efforts around cost discipline.

Despite our success thus far in navigating the challenging environment that COVID-19 has presented, as more fully discussed in Part II,I, Item 1A "Risk Factors" in this Quarterly Report onour 2020 Form 10-Q,10-K, the extent to which COVID-19 will adversely impact our business, financial condition and results of operations is dependent upon numerous factors resulting therefrom, many of which are highly uncertain, rapidly changing and uncontrollable. However, with a strong balance sheet and the vast majority of our current revenue coming from fixed price agreements, we believe that we are well-positioned to continue to overcome and adapt to the challenges that we have been presented with thus far.
Recurring Revenue
20

Second quarter 2020 recurring revenue was $85.2 million compared to $74.4 million in second quarter 2019, with the increase primarily driven by new patent license agreements signed in fourth quarter 2019 and first half 2020. Refer to "ResultsTable of Operations --ContentsSecond Quarter2020 Compared to Second Quarter2019" for further discussion of our 2020 revenue.
Comparability of Financial Results
When comparing secondfirst quarter 20202021 financial results against other periods, the following items should be taken into consideration:
our secondOur first quarter 20202021 revenue includes $19.2$3.8 million of non-recurring revenue which primarily relatesrelated to a consumer electronics patent licensing agreement signed in first quarter 2021.
Interest expense decreased in first quarter 2021 $3.6 million primarily due to a reduction in non-cash interest expense resulting from the accounting adoption of ASU 2020-06, related to the Huawei PLA discussed above;accounting for convertible debts.
our secondIn first quarter 2020 operating expenses include2021 Other income, net includes a $2.9$1.9 million charge associated with performance compensation; andgain on a contract termination.
the Technicolor Patent Acquisition and the R&I Acquisition, which closed on July 30, 2018 and May 31, 2019, respectively, contributed $4.2 million to our second quarter 2020 revenue and $17.2 million to our second quarter 2020 operating expenses. The $17.2 million of operating expenses is comprised of $16.6 million of recurring costs, of which $4.2 million relates to patent amortization, and the remaining $0.6 million relates to transaction-related and integration costs.
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
Our significant accounting policies are described in Note 2, "Summary of Significant Accounting Policies and New Accounting Guidance", in the Notes to Consolidated Financial Statements included in our 20192020 Form 10-K.10-K. A discussion of our critical accounting policies, and the estimates related to them, are included in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 20192020 Form 10-K. There have been no material changes to our existing critical accounting policies from the disclosures included in our 20192020 Form 10-K. In addition, we have analyzed the impact of COVID-19 on our financial statements as of June 30, 2020,March 31, 2021, and we have determined that the changes to our significant judgments and estimates did not have a material impact on our financial statements. Refer to Note 1, “Basis of Presentation,” in the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for updates related to new accounting pronouncements and changes in accounting policies.
FINANCIAL POSITION, LIQUIDITY AND CAPITAL RESOURCES
Our primary sources of liquidity are cash, cash equivalents and short-term investments, as well as cash generated from operations. We believe we have the ability to obtain additional liquidity through debt and equity financings. Based on our past performance and current expectations, we believe our available sources of funds, including cash, cash equivalents and short-term investments and cash generated from our operations, will be sufficient to finance our operations, capital requirements, debt obligations, existing stock repurchase program and dividend program for the next twelve months.
Cash, cash equivalents, restricted cash and short-term investments
As of June 30, 2020March 31, 2021 and December 31, 2019,2020, we had the following amounts of cash, cash equivalents, restricted cash and short-term investments (in thousands):
June 30, 2020 December 31, 2019 
Increase /
(Decrease)
March 31, 2021December 31, 2020Increase /
(Decrease)
Cash and cash equivalents$670,292
 $745,491
 $(75,199)Cash and cash equivalents$396,156 $473,474 $(77,318)
Restricted cash included within prepaid and other current assets5,906
 10,526
 (4,620)Restricted cash included within prepaid and other current assets3,688 3,108 580 
Restricted cash included within other non-current assets1,081
 1,081
 
Restricted cash included within other non-current assets1,081 1,081 — 
Short-term investments168,953
 179,204
 (10,251)Short-term investments488,559 453,173 35,386 
Total cash, cash equivalents, restricted cash and short-term investments$846,232
 $936,302
 $(90,070)Total cash, cash equivalents, restricted cash and short-term investments$889,484 $930,836 $(41,352)
The net decrease in cash, cash equivalents, restricted cash and short-term investments was attributable to cash used in financing activities of $116.5$19.9 million, primarily related to the repaymentdividend payments and repurchases of our 2020 Notes and dividend payments. Cashcommon stock, cash used in investing activities of $17.6$11.1 million, excluding sales and purchases of short-term investments, primarily related to capital investments for patents and fixed assets, partially offset by cash provided byused in operating activities of $42.9$9.8 million. Refer to the sections below for further discussion of these items.
Cash flows from operationsoperating activities
We generated (used)used the following cash flows in our operating activities in first halfquarter 2021 and 2020 and 2019 (in thousands):
Three months ended March 31,
20212020Increase /
(Decrease)
Net cash used in operating activities$(9,842)$(26,885)$17,043 
21

 Six months ended June 30,
 2020
2019
Increase /
(Decrease)
Net cash provided by (used in) operating activities$42,870
 $(53,523) $96,393
Table of Contents
Our cash flows provided byused in operating activities are principally derived from cash receipts from patent license and technology solutions agreements, offset by cash operating expenses and income tax payments. The $96.4$17.0 million change in net cash provided byused in operating activities was primarily driven by timing of paymentshigher cash receipts primarily related to patent license agreements, including new patent license agreementagreements signed over the last twelve months.months, as well as the timing of cash receipts related to existing patent license agreements. The table below sets forth the significant items comprising our cash flows provided by (used in)used in operating activities during the sixthree months ended June 30,March 31, 2021 and 2020 and 2019 (in thousands).:
Three months ended March 31,
 20212020Increase / (Decrease)
Cash Receipts:
Patent royalties$56,107 $33,464 $22,643 
Technology solutions1,881 973 908 
Total cash receipts57,988 34,437 23,551 
Cash Outflows:
Cash operating expenses a
48,360 49,264 (904)
Income taxes paid b
4,328 2,228 2,100 
Total cash outflows52,688 51,492 1,196 
Other working capital adjustments(15,142)(9,830)(5,312)
Cash flows used in operating activities$(9,842)$(26,885)$17,043 
 Six months ended June 30,
 2020 2019 Increase / (Decrease)
Cash Receipts:     
Patent royalties$155,330
 $59,769
 $95,561
Technology solutions3,403
 1,431
 1,972
Total cash receipts158,733
 61,200
 97,533
      
Cash Outflows:     
Cash operating expenses a
97,159
 92,911
 4,248
Income taxes paid b
13,788
 9,770
 4,018
Total cash outflows110,947
 102,681
 8,266
      
Other working capital adjustments(4,916) (12,042) 7,126
      
Cash flows provided by (used in) operating activities$42,870
 $(53,523) $96,393

(a) Cash operating expenses include operating expenses less depreciation of fixed assets, amortization of patents, non-cash compensation and non-cash changes in fair value.
(b) Income taxes paid include foreign withholding taxes.
Cash flows from investing and financing activities
Net cash used in investing activities in first half 2020quarter 2021 was $6.2$47.0 million, a ($160.7 million)$47.5 million change from $154.5$94.5 million of net cash provided byused in investing activities in first half 2019.quarter 2020. During first half 2020,quarter 2021, we sold $11.4purchased $35.9 million of short-term marketable securities, net of purchases.sales, and invested $1.1 million in a new strategic investment. During first half 2019,quarter 2020, we sold $175.2purchased $86.7 million of short-term marketable securities, net of purchases.sales.
Net cash used in financing activities for first half 2020quarter 2021 was $116.5$19.9 million, an increasea change of $69.9$86.1 million from net cash used in financing activities of $46.6$106.0 million for first half 2019.quarter 2020. This change was primarily attributable to a net proceeds of $141.3 million from the debt refinancing (net of related expenses) in second quarter 2019 and $10.3 million proceeds from noncontrolling interests received in first half 2019. These first half 2019 activities were partially offset by a reduction of $170.9 million in share repurchases, as well as $94.9 million payment on long-term debt related to the repayment of our 2020 Notes.

Notes during the first quarter 2020 offset by $5.4 million of additional repurchases of common stock and a $1.1 million non-controlling interest distribution in first quarter 2021.
Other
Our combined short-term and long-term deferred revenue balance as of June 30, 2020March 31, 2021 was approximately $280.9$304.6 million, a net increasedecrease of $10.6$23.4 million from December 31, 2019.2020. This increasedecrease in deferred revenue was primarily attributable to timing of cash receipts from our dynamic fixed-fee royalty agreements includingand amortization of deferred revenue recognized in the second quarter 2020 patent license agreement with Huawei.period.
Based on current license agreements, we expect the amortization of dynamic fixed-fee royalty payments to reduce the June 30, 2020March 31, 2021 deferred revenue balance of $280.9$304.6 million by $141.5$192.4 million over the next twelve months.
Convertible Notes
See Note 8,7,Long-Term DebtObligations” to the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for definitions of capitalized terms below.
22

Our 2024 Notes, which for purposes of this discussion are also referred to as the "Convertible Notes", are included in the dilutive earnings per share calculation using the treasury stock method.if-converted method, as required by the adoption of ASU 2020-06. Under the treasuryif-converted method, we must assume that conversion of convertible securities occurs at the beginning of the reporting period. As of December 31, 2020, we made the irrevocable election to settle all conversions of the 2024 Notes through combination settlements of cash and shares of our common stock, method,with a specified dollar amount of $1,000 per $1,000 principal amount of 2024 Notes and any remaining amounts in shares of common stock. As the principal amount must be paid in cash and only the conversion spread is settled in shares, we only include the net number of incremental shares that would be issued upon conversion. We must calculate the number of shares of our common stock issuable under the terms of the Convertible Notes based on the average market price of our common stock during the applicable reporting period and include that number in the total diluted shares figure for the period.
At the time we issued the Convertible Notes, we entered into the 2024 Call Spread Transactions that together were designed to have the economic effect of reducing the net number of shares that will be issued in the event of conversion of the Convertible Notes by, in effect, increasing the conversion price of the Convertible Notes from our economic standpoint. However, under GAAP, since the impact of the 2024 Note Hedge Transactions is anti-dilutive, we exclude from the calculation of fully diluted shares the number of shares of our common stock that we would receive from the counterparties to these agreements upon settlement.
During periods in which the average market price of our common stock is above the applicable conversion price of the Convertible Notes ($81.29 per share for the 2024 Notes as of June 30, 2020)March 31, 2021) or above the strike price of the warrants ($109.43 per share for the 2024 Warrant Transactions as of June 30, 2020)March 31, 2021), the impact of conversion or exercise, as applicable, would be dilutive and such dilutive effect is reflected in diluted earnings per share. As a result, in periods where the average market price of our common stock is above the conversion price or strike price, as applicable, under the treasury stockif-converted method, we calculate the number of shares issuable under the terms of the Convertible Notes and the warrants based on the average market price of the stock during the period, and includesinclude that number in the total diluted shares outstanding for the period.
Under the treasury stockif-converted method, changes in the price per share of our common stock can have a significant impact on the number of shares that we must include in the fully diluted earnings per share calculation. As described in Note 8,7, "Long-Term Debt,Obligations," it is our current intent and policywe made the irrevocable election to settle all conversions of the Convertible2024 Notes through a combination settlementsettlements of cash and shares of our common stock, with a specified dollar amount of $1,000 per $1,000 principal amount of the Convertible2024 Notes and any remaining amounts in shares of our common stock ("net share settlement"). Assuming net share settlement upon conversion, the following table illustrates how, based on the $400.0 million aggregate principal amount of the 2024 Notes outstanding as of June 30, 2020,March 31, 2021, and the approximately 4.9 million warrants related to the 2024 Notes outstanding as of the same date, changes in our stock price would affect (i) the number of shares issuable upon conversion of the Convertible Notes, (ii) the number of shares issuable upon exercise of the warrants subject to the 2024 Warrant Transactions, (iii) the number of additional shares deemed outstanding with respect to the Convertible Notes, after applying the treasury stockif-converted method, for purposes of calculating diluted earnings per share ("Total Treasury StockIf-Converted Method Incremental Shares"), (iv) the number of shares of our common stock deliverable to us upon settlement of the 2024 Note Hedge Transactions and (v) the number of shares issuable upon concurrent conversion of the Convertible Notes, exercise of the warrants subject to the 2024 Warrant Transactions, and settlement of the 2024 Note Hedge Transactions:

23

Table of Contents
2024 Notes2024 Notes2024 Notes
Market Price Per ShareShares Issuable Upon Conversion of the 2024 NotesShares Issuable Upon Exercise of the 2024 Warrant TransactionsTotal Treasury Stock Method Incremental SharesShares Deliverable to InterDigital upon Settlement of the 2024 Note Hedge Transactions
Incremental Shares Issuable (a) 
Market Price Per ShareShares Issuable Upon Conversion of the 2024 NotesShares Issuable Upon Exercise of the 2024 Warrant TransactionsTotal If-Converted Method Incremental SharesShares Deliverable to InterDigital upon Settlement of the 2024 Note Hedge Transactions
Incremental Shares Issuable (a)
(Shares in thousands)(Shares in thousands)
$85215215(215)$85215215(215)
$90476476(476)$90476476(476)
$95710710(710)$95710710(710)
$100921921(921)$100921921(921)
$1051,1111,111(1,111)$1051,1111,111(1,111)
$1101,284251,309(1,284)25$1101,284251,309(1,284)25
$1151,4422381,680(1,442)238$1151,4422381,680(1,442)238
$1201,5874332,020(1,587)433$1201,5874332,020(1,587)433
$1251,7216132,334(1,721)613$1251,7216132,334(1,721)613
$1301,8447792,623(1,844)779$1301,8447792,623(1,844)779

(a) Represents incremental shares issuable upon concurrent conversion of convertible notes, exercise of warrants and settlement of the hedge agreements.
RESULTS OF OPERATIONS
SecondFirst Quarter 2021 Compared to First Quarter 2020 Compared to Second Quarter 2019
Revenues
The following table compares secondfirst quarter 20202021 revenues to secondfirst quarter 20192020 revenues (in thousands):
Three months ended March 31,
 20212020 Total Increase/(Decrease)
Variable patent royalty revenue$7,096 $5,946 $1,150 19 %
Fixed-fee royalty revenue69,296 66,347 2,949 %
Current patent royalties a
76,392 72,293 4,099 %
Non-current patent royalties b
3,781 705 3,076 436 %
Total patent royalties80,173 72,998 7,175 10 %
Current technology solutions revenue a
2,190 3,212 (1,022)(32)%
Total revenue$82,363 $76,210 $6,153 %
a.    Recurring revenues are comprised of current patent royalties, inclusive of Dynamic Fixed-Fee Agreement royalties, and current technology solutions revenue.
 Three months ended June 30,    
 2020 2019  Total Increase/(Decrease)
Variable patent royalty revenue$4,597
 $8,594
 $(3,997) (47)%
Fixed-fee royalty revenue77,338
 63,736
 13,602
 21 %
Current patent royalties a
81,935
 72,330
 9,605
 13 %
Non-current patent royalties b
19,249
 1,237
 18,012
 1,456 %
Total patent royalties101,184
 73,567
 27,617
 38 %
Current technology solutions revenue a
3,314
 2,042
 1,272
 62 %
Patent sales b

 
 
  %
Total revenue$104,498
 $75,609
 $28,889
 38 %
b.    Non-recurring revenues are comprised of non-current patent royalties, which primarily include past patent royalties and royalties from static agreements, as well as patent sales.
a.Recurring revenues are comprised of current patent royalties, inclusive of Dynamic Fixed-Fee Agreement royalties, and current technology solutions revenue.
b.Non-recurring revenues are comprised of non-current patent royalties, which primarily include past patent royalties and royalties from static agreements, as well as patent sales.
The $28.9$6.2 million increase in total revenue was primarily driven by the second quarter 2020 dynamic fixed-fee royalty agreement signed with Huawei, which primarily drovedue to a $13.6$3.1 million increase in fixed-fee royaltyrecurring revenue and a $18.0$3.1 million increase in non-current patent royalties. Additionally, a new fixed-fee agreement signed in fourth quarter 2019 contributed to the increase in fixed-fee royalty revenue. These and other increases in revenue were partially offset by a decrease in variable patent royalty revenue of $4.0 million which was primarily attributable to forecasted volume decreases related to the COVID-19 pandemic and the transition of certain patent agreements from variable to fixed fee, among other drivers.

Inroyalties both second quarter 2020 and second quarter 2019, 75% of our total revenue was attributable to companies that individually accounted for 10% or more of our total revenue. In second quarter 2020 and second quarter 2019, the following companies accounted for 10% or more of our total revenue:
 Three months ended June 30,
 2020 2019
Huawei29% —%
Apple27% 37%
Samsung19% 26%
LG<10% 12%
Operating Expenses
The following table summarizes the changes in operating expenses between second quarter 2020 and second quarter 2019 by category (in thousands):
 Three months ended June 30,    
 2020 2019 Increase/(Decrease)
Patent administration and licensing$38,695
 $37,353
 $1,342
 4 %
Development22,092
 17,027
 5,065
 30 %
Selling, general and administrative11,794
 12,314
 (520) (4)%
Total operating expenses$72,581
 $66,694
 $5,887
 9 %
Operating expenses increased to $72.6 million in second quarter 2020 from $66.7 million in second quarter 2019. The $5.9 million increase in total operating expenses was primarily due to changes in the following items (in thousands):
 Increase/(Decrease)
Recurring operations of the Technicolor Acquisitions$5,129
One-time costs related to the Technicolor Acquisitions(1,189)
Performance-based incentive compensation3,015
Intellectual property enforcement and non-patent litigation2,428
Personnel-related costs(3,197)
Other(299)
Total increase in operating expenses$5,887
The $5.9 million increase in operating expenses was primarily driven by five new patent license agreements signed over the Technicolor Patent Acquisition, which closed in July 2018 and was integrated throughout 2019, and the R&I Acquisition, which closed May 2019 (together, the "Technicolor Acquisitions"), and contributed $17.2 million to our second quarter 2020 operating expenses. The $17.2 million of operating expenses is comprised of $16.6 million of recurring costs, of which $4.2 million relates to patent amortization, and the remaining $0.6 million relates to transaction and integration costs. This compares to $13.2 million of operating expenses in second quarter 2019, which included only one month of costs following the R&I Acquisition. Second quarter 2019 was comprised of $11.5 million of recurring costs, and the remaining $1.7 million related to transaction and integration costs.
The $2.4 million increase in intellectual property enforcement costs was primarily driven by the on-going Lenovo litigations, as well as the Xiaomi litigation that we initiated in July 2020. Performance-based incentive compensation increased $3.0 million primarily due to increased performance accruals driven by thelast twelve months, including Huawei deal signed in second quarter 2020. Lastly, corporate initiatives to optimize our cost structure drove a $3.2 million decrease in personnel-related costs.
Patent Administration and Licensing Expense: The increase in patent administration and licensing expense primarily resulted from the above-noted increases related to intellectual property enforcement costs and performance-based incentive compensation. These increases were partially offset by lower one-time costs related to Technicolor Acquisitions, as well lower personnel-related costs among other decreases.

Development Expense: The increase in development expense primarily related to the above-noted increases resultingreduction from the R&I Acquisition, as well as performance-based incentive compensation. These and other increases were partially offset byexpired LG patent license agreement. In April 2021, LG confirmed that it is exiting the above-noted decrease in personnel-related costs, primarily related to our second quarter 2019 salesmartphone market.
24

Table of the Hillcrest product business and reductions in other non-cellular research areas.Contents
Selling, General and Administrative Expense: The decrease in selling, general and administrative expense was primarily due to the above-noted lower personnel-related costs and one-time costs associated with the Technicolor acquisitions. These decreases were partially offset by the above-noted increase for performance-based compensation.
Non-Operating Income (Expense)
The following table compares second quarter 2020 non-operating income (expense) to second quarter 2019 non-operating income (expense) (in thousands):
 Three months ended June 30,    
 2020 2019 Change
Interest expense$(9,971) $(9,907) $(64) (1)%
Interest and investment income1,342
 2,590
 (1,248) (48)%
Gain on asset acquisition
 14,175
 (14,175) (100)%
Loss on extinguishment of long-term debt
 (5,488) 5,488
 (100)%
Other income (expense), net2,447
 1,077
 1,370
 (127)%
Total non-operating income (expense)$(6,182) $2,447
 $(8,629) 353 %
The change in non-operating income (expense) between periods was primarily driven by the recognition of a net gain of $14.2 million related to the Technicolor R&I acquisition in second quarter 2019, partially offset by the recognition of a $5.5 million loss on extinguishment of debt recognized in connection with the settlement of a portion of our 2020 Notes in second quarter 2019.
Income taxes
In second quarter 2020, based on the statutory federal tax rate net of discrete federal and state taxes, we had an effective tax rate of 20.0%. The second quarter 2020 tax rate was impacted by losses in certain jurisdictions where the Company presently has recorded a valuation allowance against the related tax benefit. Excluding this valuation allowance, our second quarter 2020 effective tax rate would have been 12.2%. This is compared to an effective tax rate of 43.9% based on the statutory federal tax rate net of discrete federal and state taxes during second quarter 2019. Second quarter 2019 was impacted by a discrete net expense of $3.0 million primarily related to both the Technicolor R&I acquisition and the extinguishment of long-term debt. The Company believes that outcomes which are reasonably possible within the next 12 months may result in the reduction in the liability for unrecognized tax benefits of $1.8 million, excluding interest and penalties.
On March 27, 2020, the CARES Act was signed into law. We are currently evaluating its impact, if any, on us.
On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Reform Act") was signed into law. The Tax Reform Act imposes a 13.125% tax rate on income that qualifies as Foreign Derived Intangible Income ("FDII"). On July 9, 2020, the IRS issued final regulations for FDII. The Company is currently evaluating and will record the impact, if any, as applicable. 
First Half 2020 Compared to First Half 2019

Revenues
The following table compares first half 2020 revenues to first half 2019 revenues (in thousands):
 Six months ended June 30,    
 2020 2019  Total Increase/(Decrease)
Variable patent royalty revenue$10,543
 $17,874
 $(7,331) (41)%
Fixed-fee royalty revenue143,685
 126,609
 17,076
 13 %
Current patent royalties a
154,228
 144,483
 9,745
 7 %
Non-current patent royalties b
19,954
 (4,538) 24,492
 (540)%
Total patent royalties174,182
 139,945
 34,237
 24 %
Current technology solutions revenue a
6,526
 4,070
 2,456
 60 %
Patent Sales b

 225
 (225) (100)%
Total revenue$180,708
 $144,240
 $36,468
 25 %
(a)Recurring revenues are comprised of current patent royalties, inclusive of Dynamic Fixed-Fee Agreement royalties, and current technology solutions revenue.
(b)Non-recurring revenues are comprised of non-current patent royalties, which primarily include past patent royalties and royalties from static agreements, as well as patent sales.
The $36.5 million increase in total revenue was primarily driven by the second quarter 2020 dynamic fixed-fee royalty agreement signed with Huawei, which primarily drove a $17.1 million increase in fixed-fee royalty revenue and a $24.5 million increase in non-current patent royalties. A new fixed-fee agreement signed in fourth quarter 2019 also contributed to the increase in fixed-fee royalty revenue. Additionally, the first half 2019 inclusion of a $5.5 million net charge recorded as contra non-recurring revenue during first quarter 2019 related to a restructured licensing arrangement with a long-term customer contributed to the increase in non-current patent royalties. The decrease in variable patent royalties was primarily due to forecasted volume decreases related to the COVID-19 pandemic and the transition of certain patent agreements from variable to fixed fee, among other drivers.
In first half 2020quarter 2021 and first half 2019, 70%quarter 2020, 71% and 79%73% of our total revenue, respectively, was attributable to companies that individually accounted for 10% or more of our total revenue. In first half 2020quarter 2021 and first half 2019,quarter 2020, the following companies accounted for 10% or more of our total revenue:
Three months ended March 31,
 20212020
Apple34%37%
Samsung24%26%
Huawei13%—%
LGN/A10%
 Six months ended June 30,
 2020 2019
Apple31% 39%
Samsung22% 27%
Huawei17% —%
LG< 10% 13%

Operating Expenses
The following table summarizes the changes in operating expenses between first half 2020quarter 2021 and first half 2019quarter 2020 by category (in thousands):
Six months ended June 30,  Three months ended March 31,
2020 2019 Increase/(Decrease) 20212020Increase/(Decrease)
Patent administration and licensing$78,803
 $73,424
 $5,379
 7 %Patent administration and licensing$36,574 $40,108 $(3,534)(9)%
Development40,910
 35,522
 5,388
 15 %Development22,583 18,818 3,765 20 %
Selling, general and administrative24,397
 26,529
 (2,132) (8)%Selling, general and administrative11,217 12,603 (1,386)(11)%
Total operating expenses$144,110
 $135,475
 $8,635
 6 %Total operating expenses$70,374 $71,529 $(1,155)(2)%
Operating expenses increased 6%decreased to $144.1$70.4 million in first half 2020quarter 2021 from $135.5$71.5 million in first half 2019.quarter 2020. The $8.6$1.2 million increasedecrease in total operating expenses was primarily due to changes in the following items (in thousands):
Increase/(Decrease)
Patent maintenance$(2,486)
Corporate initiatives(1,952)
Intellectual property enforcement and non-patent litigation1,247 
Personnel-related costs, including performance-based compensation2,253 
Other(217)
Total decrease in operating expenses$(1,155)
 Increase/(Decrease)
Recurring operations of the Technicolor Acquisitions$10,720
One-time costs related to the Technicolor Acquisitions(3,527)
Corporate Initiatives1,952
Intellectual property enforcement and non-patent litigation2,150
Performance-based incentive compensation1,512
Personnel-related costs(4,747)
Other575
Total increase in operating expenses$8,635
The $8.6$1.2 million increasedecrease in operating expenses was primarily driven by the Technicolor Acquisitions, which contributed $32.6a $2.5 million decrease in patent maintenance costs due to ongoing efforts to effectively manage our first half 2020 operating expenses. The $32.6 million of operating expenses is comprised of $31.4 million of recurring costs, of which $8.4 million relates to patent amortization,portfolio size and the remaining $1.2 million relates to transaction and integration costs during first half 2020. This compares to $25.4 million of operating expenses in first half 2019, which included only one month of costs following the R&I Acquisition. First half 2019 was comprised of $20.6 million of recurring costs, and the remaining $4.8 million related to transaction and integration costs.
During first half 2020 the company incurred a $2.0 million charge attributabledecrease due to first quarter 2020 corporate initiatives as part of its ongoing efforts to optimize our cost structure, including the closing of our San Diego office. The $2.2These decreases were partially offset by a $1.2 million increase in intellectual property enforcement costs, was primarily driven by the on-going Lenovo litigations, as well as the Xiaomi litigation that we initiated in July 2020. Performance-based incentive compensation increased $1.5and a $2.3 million primarily due to increased performance accruals driven by the Huawei deal signed in second quarter 2020. Lastly, corporate initiatives to optimize our cost structure drove a $4.7 million decreaseincrease in personnel-related costs.

Patent Administration and Licensing Expense:The $3.5 million The increasedecrease in patent administration and licensing expense primarily resulted from the above-noted increasesdecreases related to patent maintenance, as well as reduced travel costs driven by COVID-19 restrictions. These decreases were partially offset by the increase in intellectual property enforcement and non-patent litigation costs and performance-based incentive compensation.discussed above.
Development Expense: The $3.8 million increase in development expense primarily resulted from the above-notedabove-mentioned increases relatedin personnel-related costs, as well as increases in consulting costs to the Technicolor Acquisitions.supplement our research efforts. These increases were partially offset by lower personnel-relatedreduced travel costs primarily related to our second quarter 2019 sale of the Hillcrest product business and reductions in other non-cellular research areasdriven by COVID-19 restrictions.
Selling, General and Administrative Expense: The $1.4 million decrease in selling, general and administrative expense was primarily resulted fromdue to the above-noted reduction in personnel-related costs, as well as lower one-time costs associated with the Technicolor acquisitions. These decreases were partially offset by the above-noted increases in performance-based incentive compensation and corporate initiatives.initiatives discussed above.
25

Table of Contents
Non-Operating Income (Expense)Expense
The following table compares first halfquarter 2021 non-operating expense to first quarter 2020 non-operating income (expense) to first half 2019 non-operating income (expense)expense (in thousands):

 Six months ended June 30,    
 2020 2019 Change
Interest expense$(20,516) $(19,385) $(1,131) (6)%
Interest and investment income4,219
 6,486
 (2,267) (35)%
Gain on asset acquisition and sale of business
 14,175
 (14,175) (100)%
Loss on extinguishment of long-term debt
 (5,488) 5,488
 (100)%
Other income (expense), net5,593
 796
 4,797
 (603)%
Total non-operating income (expense)$(10,704) $(3,416) $(7,288) (213)%
Three months ended March 31,
20212020Change
Interest expense$(6,990)$(10,545)$3,555 34 %
Interest and investment income553 2,877 (2,324)(81)%
Other income, net171 3,146 (2,975)(95)%
Total non-operating expense$(6,266)$(4,522)$(1,744)(39)%
The change in non-operating income (expense)expense between periods was primarily driven by the recognition of a first quarter 2020 net gain of $14.2 million related to the Technicolor R&I acquisition in second quarter 2019, partially offset by the recognition of a $5.5 million loss on extinguishment of debt recognized in connection with the settlement of a portion of our 2020 Notes in second quarter 2019. In addition, first half 2020 other income (expense) includes a $5.5$4.4 million gain, primarily resulting from observable price changes in orderly transactions of one of our long-term strategic investments, $3.1 million of reduced non-cash interest expense due to the removal of the accretion of the debt discount on the 2024 Notes resulting from the adoption of ASU 2020-06, $1.0 million of reduced interest expense due to the repayment of the 2020 Notes in first quarter 2020, and a $1.9 million gain in first quarter 2021 on a contract termination. Additionally, Interest and investment income decreased $2.3 million in the three months ended March 31, 2021 due to reduced rates of return on our short-term investments.
Income taxes
In first halfquarter 2021 and 2020, based on the statutory federal tax rate net of discrete federal and state taxes, we had an effective tax rate of 26.9%.30.8% and 1,144.7%, respectively. The first half 2020effective tax rate in both periods was impacted by losses in certain jurisdictions where the Company presently has recorded a valuation allowance against the related tax benefit. Excluding this valuation allowance, our first halfquarter 2021 and 2020 effective tax rate would have been an expense of 12.5%. In first half 2020, we recorded a net discrete tax expense of $0.3 million primarily related to stock compensation. This is compared to an effective tax rate benefit of 59.5% based on the statutory federal tax rate net of discrete federal12.0% and state taxes during first half 2019. During first half 2019, we recorded discrete expense of $3.0 million related to the R&I Acquisition, the extinguishment of long-term debt, the filing of amended federal income tax returns and the sale of our Hillcrest product business.65.5%, respectively.
As noted above, on December 22, 2017, the Tax Reform Act was signed into law. The Tax Reform Act imposes a 13.125% tax rate on income that qualifies as FDII. The reduction in benefit is primarily related to the differences in our FDII deduction between the periods. The difference in the FDII deduction between the periods was driven by the timing of income between book and tax mostly related to revenue recognition. On July 9, 2020, the IRS issued final regulations for FDII. The Company is currently evaluating and will record the impact, if any, as applicable.
STATEMENT PURSUANT TO THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 — FORWARD-LOOKING STATEMENTS
This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. Such statements include certain information under the heading “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other information regarding our current beliefs, plans and expectations, including without limitation the matters set forth below. Words such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “forecast,” "believe," "could," "would," "should," "if," "may," "might," "future," "target," “goal,” "trend," "seek to," "will continue," "predict," "likely," "in the event," variations of any such words or similar expressions are intended to identify such forward-looking statements. Forward-looking statements in this Quarterly Report on Form 10-Q include, without limitation, statements regarding:
Our expectations regarding the potential effects of new accounting standards on our financial position, results of operations or cash flows;
Our expectation that the amortization of dynamic fixed-fee royalty payments will reduce our June 30, 2020March 31, 2021 deferred revenue balance over the next twelve months;
Our expectations with respect to revenue to be recognized based on contracts signed and committed Dynamic Fixed-Fee Agreement payments as of June 30, 2020;March 31, 2021;
Our expectations and estimations regarding the income tax effects, and the impact on the Company, of the Tax Reform Act, including our forecasted net benefit related to our income qualifying as FDII;
Our expectations with respect to anticipated tax refunds to be received from amending certain tax returns;
The timing, outcome and impact of, and plans, expectations and beliefs with respect to, our various litigation, arbitration, regulatory and administrative matters;
Our belief that we have the ability to obtain additional liquidity through debt and equity financings;

Our expectations with respect to the impact of the Technicolor Acquisitions on our financial statements and our business;
Our belief that our available sources of funds will be sufficient to finance our operations, capital requirements, debt obligations, existing stock repurchase program and dividend program for the next twelve months;
Our expectation that we will continue to pay dividends comparable to our quarterly $0.35 per share cash dividend in the future;
26

Table of Contents
Our expectations regarding our customers’ ability to continue to pay fixed fee payments owed to us despite the ongoing COVID-19 pandemic; and
Our expectations regarding the potential effects of the ongoing COVID-19 pandemic on our financial position, results of operations and cash flows.
Forward-looking statements concerning our business, results of operations and financial condition are inherently subject to risks and uncertainties that could cause actual results, and actual events that occur, to differ materially from results contemplated by the forward-looking statements. These risks and uncertainties include, but are not limited to, the risks and uncertainties outlined in greater detail in Part I, Item 1A of our 20192020 Form 10-K and Part II, Item 1A "Risk Factors" in this Quarterly Report on Form 10-Q.10-K. We undertake no obligation to revise or update publicly any forward-looking statement for any reason, except as otherwise required by law.
Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
There have been no material changes in quantitative and qualitative market risk from the disclosures included in our 20192020 Form 10-K.
10-K.

Item 4. CONTROLS AND PROCEDURES.
The Company’s principal executive officer and principal financial officer, with the assistance of other members of management, have evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) as of the end of the period covered by this report. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective to ensure that the information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and to ensure that the information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. There were no changes in our internal control over financial reporting that occurred during the quarter ended June 30, 2020,March 31, 2021, that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

27

Table of Contents
PART II — OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS.

See Note 5, “Litigation and Legal Proceedings,” to the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for a description of legal proceedings, which is incorporated herein by reference.

Item 1A. RISK FACTORS.

Reference is made to Part I, Item 1A, “Risk Factors” included in our 20192020 Form 10-K for information concerning risk factors, which should be read in conjunction with the factors set forth in the Statement Pursuant to the Private Securities Litigation Reform Act of 1995 -- Forward-Looking Statements in Part I, Item 2 of this Quarterly Report on Form 10-Q. Except as set forth below, thereThere have been no material changes with respect to the risk factors disclosed in our 2019 Form 10-K. The risk factor set forth below updates, and should be read together with, the risk factors in our 20192020 Form 10-K. You should carefully consider such factors, which could materially affect our business, financial condition or future results. The risks described in this Quarterly Report on Form 10-Q and in the 20192020 Form 10-K are not the only risks facing our company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially and adversely affect our business, financial condition and/or operating results.

The extent to which the COVID-19 pandemic or any other potential future public health crises, pandemics or similar events will adversely impact our business, financial condition and results of operations is highly uncertain and cannot be predicted.

The COVID-19 pandemic has created significant worldwide uncertainty, volatility and economic disruption. The extent to which COVID-19 and any other potential future public health crises, pandemics or similar events will adversely impact our business, financial condition and results of operations is dependent upon numerous factors, many of which are highly uncertain, rapidly changing and uncontrollable. These factors include, but are not limited to: (i) the duration and scope of the pandemic or other event; (ii) governmental, business and individual actions that have been and continue to be taken in response to the pandemic or other event, including travel restrictions, quarantines, social distancing, work-from-home and shelter-in-place orders and shut-downs; (iii) the impact on our customers, including those that are presently unlicensed, and other business partners; (iv) the impact on U.S. and global economies and the timing and rate of economic recovery; (v) potential adverse effects on the financial markets and access to capital; (vi) potential goodwill or other impairment charges; (vii) increased cybersecurity risks as a result of pervasive remote working conditions; (viii) our ability to effectively carry out our operations due to any adverse impacts on the health and safety of our employees and their families; (ix) the ability of our customers to timely satisfy their payment obligations to us; and (x) fluctuations in global shipments of handsets and consumer electronics devices. Furthermore, as a result of the COVID-19 pandemic, our employees have been required to work from home and our office locations have remain closed. The significant increase in remote working, particularly for an extended period of time, could exacerbate certain risks to our business, including an increased risk of cybersecurity events, improper dissemination of personal or confidential information and breakdowns in internal controls and processes.

Any of the foregoing factors could amplify the other risks and uncertainties described in our 2019 Form 10-K and could materially adversely affect our business, financial condition, and results of operations. Because the COVID-19 pandemic is unprecedented and continuously evolving, the other potential impacts to our risk factors described in our 2019 Form 10-K are uncertain.

We may have exposure to additional tax liabilities.

The United States government enacted tax reform in 2017 and continues to provide regulatory guidance related to tax reform provisions, and state authorities continue to provide guidance around its application of tax reform provisions, that in each case could impact future effective tax rates favorably or unfavorably. The international tax environment also continues to change as a result of both coordinated efforts by governments and unilateral measures designed by individual countries, which could ultimately have an adverse effect on the taxation of international businesses such as ours. Accordingly, our tax rate could be adversely affected by several factors, many of which are outside of our control, including: changing tax laws, regulations and interpretations thereof; changes in tax rates; and assessments and any related tax, interest or penalties. If we are deemed to owe additional taxes, our business, financial condition, and results of operations could be adversely affected.



Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS.

Issuer Purchases of Equity Securities
The following table provides information regarding the Company’s purchasepurchases of its common stock during the secondfirst quarter 2020.2021.
PeriodTotal Number of Shares Purchased (1)Average Price Paid Per ShareTotal Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Plans or Programs (3)
January 1, 2021 - January 31, 2021— $— — $71,464,670 
February 1, 2021 - February 28, 2021— $— — $71,464,670 
March 1, 2021 - March 31, 202191,167 $63.05 91,167 $65,715,055 
Total91,167 $63.05 91,167 $65,715,055 
PeriodTotal Number of Shares Purchased (1) Average Price Paid Per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2) Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Plans or Programs (3)
April 1, 2020 - April 30, 2020
 $
 
 $71,464,670
May 1, 2020 - May 31, 2020
 $
 
 $71,464,670
June 1, 2020 - June 30, 2020
 $
 
 $71,464,670
Total
 $
 
 $71,464,670
(1) Total number of shares purchased during each period reflects share purchase transactions that were completed (i.e., settled) during the period indicated.
(2)Shares were purchased pursuant to the 2014 Repurchase Program, $300 million of which was authorized by the Company’s Board of Directors in June 2014, with an additional $100 million authorized by the Company’s Board of Directors in each of June 2015, September 2017, December 2018, and May 2019, respectively. The 2014 Repurchase Program has no expiration date. The Company may repurchase shares under the 2014 Repurchase Program through open market purchases, pre-arranged trading plans, or privately negotiated purchases.
(2) Shares were purchased pursuant to the 2014 Repurchase Program, $300 million of which was authorized by the Company’s Board of Directors in June 2014, with an additional $100 million authorized by the Company’s Board of Directors in each of June 2015, September 2017, December 2018, and May 2019, respectively. The 2014 Repurchase Program has no expiration date. The Company may repurchase shares under the 2014 Repurchase Program through open market purchases, pre-arranged trading plans, or privately negotiated purchases.
(3) Amounts shown in this column reflect the amounts remaining under the 2014 Repurchase Program.    
Item 4. MINE SAFETY DISCLOSURES.
Not applicable.


28

Item 6. EXHIBITS.
The following is a list of exhibits filed with this Quarterly Report on Form 10-Q:

Exhibit
Number
Exhibit Description
Exhibit
Number
10.1
Exhibit Description
31.110.2
31.1
31.2
32.132.1+
32.232.2+
101.INSInline Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCHInline Schema Document
101.CALInline Calculation Linkbase Document
101.DEFInline Definition Linkbase Document
101.LABInline Labels Linkbase Document
101.PREInline Presentation Linkbase Document
104Inline Cover Page Interactive Data File (formatted as Inline XBRL with applicable taxonomy extension information contained in Exhibits 101)

+
This exhibit will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (15 U.S.C. 78r), or otherwise subject to the liability of that section. Such exhibit will not be deemed to be incorporated by reference into any filing under the Securities Act or Securities Exchange Act, except to the extent that InterDigital, Inc. specifically incorporates it by reference.



29

Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
INTERDIGITAL, INC.
Date: May 6, 2021INTERDIGITAL, INC./s/ LIREN CHEN
Liren Chen
Date: August 6, 2020/s/ WILLIAM J. MERRITT  
William J. Merritt 
President and Chief Executive Officer 
Date: AugustMay 6, 20202021/s/ RICHARD J. BREZSKI  
Richard J. Brezski 
Chief Financial Officer


37
30