UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)



☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, ~~2020~~2021



☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File No. 000-49604

ManTech International Corporation

(Exact Name of Registrant as Specified in its Charter)


Delaware						22-1852179
State or Other Jurisdiction of Incorporation or Organization						I.R.S. Employer Identification No.

~~Delaware~~				~~22-1852179~~
~~State or Other Jurisdiction of~~ ~~Incorporation or Organization~~		~~I.R.S. Employer~~ ~~Identification No.~~

2251 Corporate Park Drive	Herndon		VA		20171
Address of Principal Executive Offices						Zip Code

(~~703~~) (703) 218-6000

Registrant’s Telephone Number, Including Area Code

Securities registered pursuant to Section 12(b) of the Act:



Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Class A Common Stock	MANT	Nasdaq

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, ~~and posted on its corporate Website, if any,~~ every Interactive Data File required to be submitted ~~and posted~~ pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit ~~and post~~ 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 definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.



Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐ (Do not check if a smaller reporting company)	Smaller 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. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No

As of ~~July 29, 2020~~August 2, 2021 there were ~~27,145,551~~27,509,948 shares outstanding of our Class A common stock and ~~13,187,195~~13,176,695 shares outstanding of our Class B common stock.

TABLE OF CONTENTS



		Page No.
PART I - FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)
	Condensed Consolidated Balance Sheets as of June 30, ~~2020~~2021 and December 31, ~~2019~~2020	3
	Condensed Consolidated Statements of Income for the Three and Six Months Ended June 30, ~~2020~~2021 and ~~2019~~2020	4
	Condensed Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, ~~2020~~2021 and ~~2019~~2020	5
	Condensed Consolidated Statements of Changes in Stockholders' Equity for the Three and Six Months Ended June 30, ~~2020~~2021 and ~~2019~~2020	6
	Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, ~~2020~~2021 and ~~2019~~2020	7
	Notes to Condensed Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	24
Item 4.	Controls and Procedures	24
Part II - OTHER INFORMATION
Item 1.	Legal Proceedings	25
Item 6.	Exhibits	25

PART I – FINANCIAL INFORMATION


~~Item 1.~~	~~Financial Statements~~

Item 1.Financial Statements

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(In Thousands Except Share and Per Share Amounts)


	(unaudited)							(unaudited)
	June 30, 2020			December 31, 2019				June 30, 2021		December 31, 2020
ASSETS							ASSETS
Cash and cash equivalents	$	29,668		$	8,854		Cash and cash equivalents	$	64,874	$	41,193
Receivables—net	443,018			398,976			Receivables—net	458,844		400,621
Prepaid expenses	38,172			20,030			Prepaid expenses	35,432		26,243
Taxes receivable—current	6,586			21,996			Taxes receivable—current	16,721		21,968
Other current assets	6,089			4,878			Other current assets	7,756		6,354
Total Current Assets	523,533			454,734			Total Current Assets	583,627		496,379
Goodwill	1,191,270			1,191,259			Goodwill	1,237,734		1,237,894
Other intangible assets—net	188,651			196,778			Other intangible assets—net	189,082		202,231
Property and equipment—net	111,381			85,631			Property and equipment—net	128,555		121,296
Operating lease right of use assets	102,187			117,728			Operating lease right of use assets	85,224		94,825
Employee supplemental savings plan assets	32,740			36,777			Employee supplemental savings plan assets	40,457		37,848
Investments	11,549			11,550			Investments	11,548		11,549
Other assets	13,458			13,457			Other assets	12,646		11,642
TOTAL ASSETS	$	2,174,769		$	2,107,914		TOTAL ASSETS	$	2,288,873	$	2,213,664
LIABILITIES AND STOCKHOLDERS' EQUITY							LIABILITIES AND STOCKHOLDERS' EQUITY
LIABILITIES							LIABILITIES
Accounts payable and accrued expenses	$	146,936		$	146,016
Accounts payable							Accounts payable	$	170,612	$	142,360
Accrued salaries and related expenses	114,911			97,298			Accrued salaries and related expenses	125,220		123,953
Operating lease obligations—current							Operating lease obligations—current	31,087		30,105
Contract liabilities	47,766			27,620			Contract liabilities	30,610		37,218
Operating lease obligations—current	29,063			29,047
Accrued expenses and other current liabilities							Accrued expenses and other current liabilities	9,780		15,177
Total Current Liabilities	338,676			299,981			Total Current Liabilities	367,309		348,813
Deferred income taxes	134,352			131,782			Deferred income taxes	144,912		141,638
Operating lease obligations—long term	89,149			103,148			Operating lease obligations—long term	71,213		80,242
Accrued retirement	31,525			35,552			Accrued retirement	34,333		36,310
Long term debt	20,000			36,500
Long-term debt							Long-term debt	30,000		15,000
Other long-term liabilities	27,978			10,309			Other long-term liabilities	12,130		12,249
TOTAL LIABILITIES	641,680			617,272			TOTAL LIABILITIES	659,897		634,252
COMMITMENTS AND CONTINGENCIES							COMMITMENTS AND CONTINGENCIES	0		0
STOCKHOLDERS' EQUITY							STOCKHOLDERS' EQUITY
Common stock, Class A—$0.01 par value; 150,000,000 shares authorized; 27,388,381 and 27,235,860 shares issued at June 30, 2020 and December 31, 2019; 27,144,268 and 26,991,747 shares outstanding at June 30, 2020 and December 31, 2019	274			272
Common stock, Class B—$0.01 par value; 50,000,000 shares authorized; 13,187,195 and 13,187,195 shares issued and outstanding at June 30, 2020 and December 31, 2019	132			132
Common stock, Class A—$0.01 par value; 150,000,000 shares authorized; 27,754,061 and 27,538,474 shares issued at June 30, 2021 and December 31, 2020; 27,509,948 and 27,294,361 shares outstanding at June 30, 2021 and December 31, 2020							Common stock, Class A—$0.01 par value; 150,000,000 shares authorized; 27,754,061 and 27,538,474 shares issued at June 30, 2021 and December 31, 2020; 27,509,948 and 27,294,361 shares outstanding at June 30, 2021 and December 31, 2020	278		275
Common stock, Class B—$0.01 par value; 50,000,000 shares authorized; 13,176,695 and 13,176,695 shares issued and outstanding at June 30, 2021 and December 31, 2020							Common stock, Class B—$0.01 par value; 50,000,000 shares authorized; 13,176,695 and 13,176,695 shares issued and outstanding at June 30, 2021 and December 31, 2020	132		132
Additional paid-in capital	535,464			525,851			Additional paid-in capital	557,211		545,717
Treasury stock, 244,113 and 244,113 shares at cost at June 30, 2020 and December 31, 2019	(9,158		)	(9,158		)
Treasury stock, 244,113 and 244,113 shares at cost at June 30, 2021 and December 31, 2020							Treasury stock, 244,113 and 244,113 shares at cost at June 30, 2021 and December 31, 2020	(9,158)		(9,158)
Retained earnings	1,006,624			973,767			Retained earnings	1,080,762		1,042,676
Accumulated other comprehensive loss	(247		)	(222		)	Accumulated other comprehensive loss	(249)		(230)
TOTAL STOCKHOLDERS' EQUITY	1,533,089			1,490,642			TOTAL STOCKHOLDERS' EQUITY	1,628,976		1,579,412
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	2,174,769		$	2,107,914		TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	2,288,873	$	2,213,664

See notes to condensed consolidated financial statements.

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In Thousands Except Per Share Amounts)


	(unaudited) Three months ended June 30,				(unaudited) Six months ended June 30,
	2021		2020		2021		2020
REVENUE	$	648,578	$	632,492	$	1,281,802	$	1,243,404
Cost of services	552,868		539,473		1,095,585		1,059,764
General and administrative expenses	47,048		53,433		95,134		105,156
OPERATING INCOME	48,662		39,586		91,083		78,484
Interest expense	(366)		(632)		(720)		(1,287)
Interest income	39		137		79		187
Other expense, net	(12)		0		(133)		(22)
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS	48,323		39,091		90,309		77,362
Provision for income taxes	(11,714)		(9,143)		(21,371)		(18,734)
Equity in losses of unconsolidated subsidiaries	0		0		(1)		(1)
NET INCOME	$	36,609	$	29,948	$	68,937	$	58,627
BASIC EARNINGS PER SHARE:
Class A common stock	$	0.90	$	0.74	$	1.70	$	1.46
Class B common stock	$	0.90	$	0.74	$	1.70	$	1.46
DILUTED EARNINGS PER SHARE:
Class A common stock	$	0.89	$	0.74	$	1.68	$	1.44
Class B common stock	$	0.89	$	0.74	$	1.68	$	1.44

(unaudited)
Three months ended
June 30, (unaudited)
Six months ended
June 30,
2020 2019 2020 2019
REVENUE $ 632,492
$ 537,037
$ 1,243,404
$ 1,038,967
Cost of services 539,473
459,266
1,059,764
890,349
General and administrative expenses 53,433
44,474
105,156
86,789
OPERATING INCOME 39,586
33,297
78,484
61,829
Interest expense (632 ) (945 ) (1,287 ) (1,429 )
Interest income 137
121
187
311
Other income (expense), net —
31
(22 ) (11 )
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS 39,091
32,504
77,362
60,700
Provision for income taxes (9,143 ) (8,290 ) (18,734 ) (15,356 )
Equity in (losses) of unconsolidated subsidiaries —
—
(1 ) (12 )
NET INCOME $ 29,948
$ 24,214
$ 58,627
$ 45,332
BASIC EARNINGS PER SHARE:
Class A common stock $ 0.74
$ 0.61
$ 1.46
$ 1.14
Class B common stock $ 0.74
$ 0.61
$ 1.46
$ 1.14
DILUTED EARNINGS PER SHARE:
Class A common stock $ 0.74
$ 0.60
$ 1.44
$ 1.13
Class B common stock $ 0.74
$ 0.60
$ 1.44
$ 1.13

See notes to condensed consolidated financial statements.

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In Thousands)


	(unaudited) Three months ended June 30,				(unaudited) Six months ended June 30,
	2021		2020		2021		2020
NET INCOME	$	36,609	$	29,948	$	68,937	$	58,627
OTHER COMPREHENSIVE LOSS:
Translation adjustments, net of tax	(7)		(8)		(19)		(25)
Total other comprehensive loss	(7)		(8)		(19)		(25)
COMPREHENSIVE INCOME	$	36,602	$	29,940	$	68,918	$	58,602

(unaudited)
Three months ended
June 30, (unaudited)
Six months ended
June 30,
2020 2019 2020 2019
NET INCOME $ 29,948
$ 24,214
$ 58,627
$ 45,332
OTHER COMPREHENSIVE INCOME (LOSS):
Translation adjustments, net of tax (8 ) (7 ) (25 ) 5
Cumulative-effect adjustment for adoption of Accounting Standards Update 2018-02 —
—
—
(24 )
Total other comprehensive (loss) (8 ) (7 ) (25 ) (19 )
COMPREHENSIVE INCOME $ 29,940
$ 24,207
$ 58,602
$ 45,313

See notes to condensed consolidated financial statements.

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

(In Thousands)


	(unaudited) Three months ended June 30,				(unaudited) Six months ended June 30,
	2021		2020		2021		2020
Common Stock, Class A
At beginning of period	$	277	$	273	$	275	$	272
Stock option exercises	1		0		2		1
Stock-based compensation expense	0		1		1		1
At end of period	278		274		278		274
Common Stock, Class B
At beginning of period	132		132		132		132
At end of period	132		132		132		132
Additional Paid-In Capital
At beginning of period	549,811		529,763		545,717		525,851
Stock-based compensation expense	4,113		2,874		7,555		5,509
Stock option exercises	3,291		2,827		6,432		4,881
Payment consideration to tax authority on employees' behalf	(4)		0		(2,493)		(777)
At end of period	557,211		535,464		557,211		535,464
Treasury Stock, at cost
At beginning of period	(9,158)		(9,158)		(9,158)		(9,158)
At end of period	(9,158)		(9,158)		(9,158)		(9,158)
Retained Earnings
At beginning of period	1,059,608		989,578		1,042,676		973,767
Net income	36,609		29,948		68,937		58,627
Dividends	(15,455)		(12,902)		(30,851)		(25,770)
At end of period	1,080,762		1,006,624		1,080,762		1,006,624
Accumulated Other Comprehensive Loss
At beginning of period	(242)		(239)		(230)		(222)
Translation adjustments, net of tax	(7)		(8)		(19)		(25)
At end of period	(249)		(247)		(249)		(247)
Total Stockholders' Equity	$	1,628,976	$	1,533,089	$	1,628,976	$	1,533,089

(unaudited)
Three months ended
June 30, (unaudited)
Six months ended
June 30,
2020 2019 2020 2019
Common Stock, Class A
At beginning of period $ 273
$ 269
$ 272
$ 268
Stock-based compensation expense 1
1
1
1
Stock option exercises —
—
1
1
At end of period 274
270
274
270
Common Stock, Class B
At beginning of period 132
132
132
132
At end of period 132
132
132
132
Additional Paid-In Capital
At beginning of period 529,763
508,605
525,851
506,970
Stock-based compensation expense 2,874
1,938
5,509
3,249
Stock option exercises 2,827
3,297
4,881
4,978
Payment consideration to tax authority on employees' behalf —
—
(777 ) (1,357 )
At end of period 535,464
513,840
535,464
513,840
Treasury Stock, at cost
At beginning of period (9,158 ) (9,158 ) (9,158 ) (9,158 )
At end of period (9,158 ) (9,158 ) (9,158 ) (9,158 )
Retained Earnings
At beginning of period 989,578
913,453
973,767
903,084
Net income 29,948
24,214
58,627
45,332
Dividends (12,902 ) (10,788 ) (25,770 ) (21,537 )
At end of period 1,006,624
926,879
1,006,624
926,879
Accumulated Other Comprehensive Loss
At beginning of period (239 ) (114 ) (222 ) (102 )
Translation adjustments, net of tax (8 ) (7 ) (25 ) 5
Cumulative-effect adjustment for adoption of Accounting Standards Update 2018-02 —
—
—
(24 )
At end of period (247 ) (121 ) (247 ) (121 )
Total Stockholders' Equity $ 1,533,089
$ 1,431,842
$ 1,533,089
$ 1,431,842

See notes to condensed consolidated financial statements.

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In Thousands)


	(unaudited) Six months ended June 30,							(unaudited) Six months ended June 30,
	2020			2019				2021		2020
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:							CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$	58,627		$	45,332		Net income	$	68,937	$	58,627
Adjustments to reconcile net income to net cash flow from (used in) operating activities:							Adjustments to reconcile net income to net cash flow from (used in) operating activities:
Depreciation and amortization	33,154			25,630			Depreciation and amortization	37,887		33,154
Noncash lease expense	13,357			13,503			Noncash lease expense	15,855		13,357
Stock-based compensation expense							Stock-based compensation expense	7,556		5,510
Deferred income taxes	2,570			5,468			Deferred income taxes	3,274		2,570
Stock-based compensation expense	5,510			3,250
Bad debt expense	2,156			—
Change in allowance for bad debts							Change in allowance for bad debts	(999)		2,156
Contract loss reserve	(372		)	(505		)	Contract loss reserve	0		(372)
Equity in losses of unconsolidated subsidiaries	1			12
Change in assets and liabilities—net of effects from acquired businesses:							Change in assets and liabilities—net of effects from acquired businesses:
Receivables—net	(46,198		)	30,151			Receivables—net	(56,912)		(46,198)
Prepaid expenses	(18,142		)	(13,704		)	Prepaid expenses	(9,186)		(18,142)
Taxes receivable—current	15,410			(1,711		)	Taxes receivable—current	5,247		15,410
Other current assets	1,026			2,896			Other current assets	401		1,026
Employee supplemental savings plan asset	(100		)	(4,253		)	Employee supplemental savings plan asset	(2,836)		(100)
Accounts payable and accrued expenses	2,196			11,522
Accrued salaries and related expenses	17,613			1,353
Other long-term assets							Other long-term assets	(2,415)		(1,455)
Accounts payable							Accounts payable	30,392		1,082
Operating lease obligations	(14,286		)	(13,487		)	Operating lease obligations	(17,573)		(14,286)
Contract liabilities	20,146			15,317			Contract liabilities	(6,159)		20,146
Accrued expenses and other current liabilities							Accrued expenses and other current liabilities	(5,896)		1,114
Accrued salaries and related expenses							Accrued salaries and related expenses	1,330		17,613
Accrued retirement	(4,027		)	1,977			Accrued retirement	(1,977)		(4,027)
Other long-term liabilities	17,687			280			Other long-term liabilities	(66)		17,687
Other	(1,651		)	412			Other	(312)		(195)
Net cash flow from operating activities	104,677			123,443			Net cash flow from operating activities	66,548		104,677
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:							CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Purchases of property and equipment	(45,600		)	(21,946		)	Purchases of property and equipment	(31,077)		(45,600)
Proceeds from corporate owned life insurance							Proceeds from corporate owned life insurance	227		4,137
Investment in capitalized software	(5,016		)	(1,952		)	Investment in capitalized software	0		(5,016)
Proceeds from corporate owned life insurance	4,137			—
Proceeds from sale of property and equipment	869			—			Proceeds from sale of property and equipment	0		869
Acquisition of a business-net of cash acquired	—			(114,552		)
Deferred contract costs	—			(2,658		)
Proceeds from equity method investment	—			283
Net cash used in investing activities	(45,610		)	(140,825		)	Net cash used in investing activities	(30,850)		(45,610)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:							CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Borrowing under revolving credit facility	261,500			333,000			Borrowing under revolving credit facility	164,000		261,500
Repayments under revolving credit facility	(278,000		)	(297,000		)	Repayments under revolving credit facility	(149,000)		(278,000)
Dividends paid	(25,782		)	(21,548		)	Dividends paid	(30,866)		(25,782)
Proceeds from exercise of stock options	4,882			4,979			Proceeds from exercise of stock options	6,433		4,882
Payment consideration to tax authority on employees' behalf	(777		)	(1,357		)	Payment consideration to tax authority on employees' behalf	(2,493)		(777)
Principal paid on financing leases	(76		)	(62		)	Principal paid on financing leases	(91)		(76)
Net cash from (used in) financing activities	(38,253		)	18,012
Net cash flow used in financing activities							Net cash flow used in financing activities	(12,017)		(38,253)
NET CHANGE IN CASH AND CASH EQUIVALENTS	20,814			630			NET CHANGE IN CASH AND CASH EQUIVALENTS	23,681		20,814
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	8,854			5,294			CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	41,193		8,854
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	29,668		$	5,924		CASH AND CASH EQUIVALENTS, END OF PERIOD	$	64,874	$	29,668
SUPPLEMENTAL CASH FLOW INFORMATION							SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest	$	1,256		$	1,248		Cash paid for interest	$	664	$	1,256
Cash paid for income taxes, net of refunds	$	(1,493	)	$	10,323		Cash paid for income taxes, net of refunds	$	12,864	$	(1,493)
Noncash investing and financing activities:							Noncash investing and financing activities:
Operating lease obligations arising from obtaining right of use assets	$	303		$	12,142		Operating lease obligations arising from obtaining right of use assets	$	9,496	$	303
Finance lease obligations arising from obtaining right of use assets	$	63		$	352		Finance lease obligations arising from obtaining right of use assets	$	62	$	63
Noncash investing activities	$	2,528		$	376		Noncash investing activities	$	(764)	$	2,528

See notes to condensed consolidated financial statements.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

June 30, ~~2020~~2021

UNAUDITED


1.	~~Description of the Business~~

1.Description of the Business

ManTech International Corporation (depending on the circumstances, “ManTech” “Company” “we” “our” “ours” or “us”) provides mission-focused technology solutions and services for U.S. defense, intelligence community and federal civilian agencies. We excel in full-spectrum cyber, data collection & analytics, enterprise information technology (IT) and systems engineering and software application development solutions that support national and homeland security.


2.	~~Basis of Presentation~~

2.Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and note disclosures normally included in the annual financial statements, prepared in accordance with accounting principles generally accepted in the U.S., have been condensed or omitted pursuant to those rules and regulations. The preparation of these condensed consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses. We recommend that you read these condensed consolidated financial statements in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019,~~2020, previously filed with the SEC. We believe that the condensed consolidated financial statements in this Form 10-Q reflect all adjustments that are necessary to fairly present the financial position, results of operations and cash flows for the interim periods presented. The results of operations for such interim periods are not necessarily indicative of the results that can be expected for the full year.

We classify indirect cost incurred as cost of services and general and administrative expenses in the same manner as such costs are defined in our disclosure statements under U.S. Government Cost Accounting Standards. Effective January 1, 2021, we updated our disclosure statements with the Defense Contract Management Agency, resulting in certain costs being classified differently either as cost of services or as general and administrative expenses on a prospective basis. This change has caused a net increase in the reported cost of services and a net decrease in reported general and administrative expenses in 2021 as compared to 2020; however, total operating costs were not affected by this change.


3.	~~Revenue from Contracts with Customers~~

3.Revenue from Contracts with Customers

We derive revenue from contracts with customers primarily from contracts with the U.S. government in the areas of defense, intelligence, homeland security and other federal civilian agencies. Substantially all of our revenue is derived from services and solutions provided to the U.S. government or to prime contractors supporting the U.S. government, including services by our employees and our subcontractors, and solutions that include third-party hardware and software that we purchase and integrate as a part of our overall solutions. Customer requirements may vary from period-to-period depending on specific contract and customer requirements. We provide our services and solutions under three types of contracts: cost-reimbursable, fixed-price and time-and-materials. Under cost-reimbursable contracts, we are reimbursed for costs that are determined to be reasonable, allowable and allocable to the contract and paid a fee representing the profit margin negotiated between us and the contracting agency, which may be fixed or performance based. Under fixed-price contracts, we perform specific tasks for a fixed price. Fixed-price contracts may include either a product delivery or specific service performance over a defined period. Under time-and-materials contracts, we are reimbursed for labor at fixed hourly rates and are generally reimbursed separately for allowable materials and expenses at cost.

For contracts that do not meet the criteria to measure performance as a right to invoice under the series guidance, we utilize an Estimate at Completion process to measure progress toward completion. We typically estimate progress towards completion based on cost incurred or direct labor incurred. As part of this process, we review information including, but not limited to, any outstanding key contract matters, progress towards completion and the related program schedule, identified risks and opportunities and the related changes in estimates of revenue and costs. The risks and opportunities include judgments about the ability and cost to achieve the contract milestones and other technical contract requirements. We make assumptions and estimates regarding labor productivity and availability, the complexity of the work to be performed, the availability of materials, the length of time to complete the performance obligation, execution by our subcontractors, the availability and timing of funding from our customer and overhead cost rates, among other variables. A significant change in one or more of these estimates could affect the timing in which we recognize revenue on our contracts. For the three months ended June 30, ~~2020~~2021 and ~~2019,~~2020, the aggregate impact of adjustments in contract estimates increased our revenue by ~~$5.8~~$5.7 million and ~~$3.5~~ $5.8

million, respectively. For ~~the~~ six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, the aggregate impact of adjustments in contract estimates increased our revenue by ~~$7.2~~$6.7 million and ~~$5.6~~$7.2 million, respectively.

We have 1 reportable segment. Our U.S. government customers typically exercise independent decision-making and contracting authority. Offices or divisions within an agency or department of the U.S. government may directly, or through a prime contractor, use our services as a separate customer as long as the customer has independent decision-making and contracting authority within its organization. We treat sales to U.S. government customers as sales within the U.S. regardless of where the services are performed. We generated 100% and 99% of our revenue from sales in the U.S. for ~~both~~each of the three months ended June 30, 2021 and 2020, ~~and 2019.~~respectively. We generated 100% and 99% of our revenue from sales in the U.S. for ~~both~~each of the six months ended June 30, 2021 and 2020, ~~and 2019.~~respectively.

The following tables disclose revenue (in thousands) by contract type, customer and contractor type for the periods presented.


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Cost-reimbursable	$	443,950	$	432,876	$	863,725	$	851,531
Fixed-price	117,474		120,359		249,682		241,914
Time-and-materials	87,154		79,257		168,395		149,959
Revenue	$	648,578	$	632,492	$	1,281,802	$	1,243,404

Three months ended
June 30, Six months ended
June 30,
2020 2019 2020 2019
Cost-reimbursable $ 432,876
$ 371,852
$ 851,531
$ 731,617
Fixed-price 120,359
108,028
241,914
203,091
Time-and-materials 79,257
57,157
149,959
104,259
Revenue $ 632,492
$ 537,037
$ 1,243,404
$ 1,038,967


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
U.S. Government	$	642,755	$	622,627	$	1,271,253	$	1,223,155
State agencies, international agencies and commercial entities	5,823		9,865		10,549		20,249
Revenue	$	648,578	$	632,492	$	1,281,802	$	1,243,404

Three months ended
June 30, Six months ended
June 30,
2020 2019 2020 2019
U.S. Government $ 622,627
$ 524,976
$ 1,223,155
$ 1,015,993
State agencies, international agencies and commercial entities 9,865
12,061
20,249
22,974
Revenue $ 632,492
$ 537,037
$ 1,243,404
$ 1,038,967


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Prime contractor	$	602,306	$	577,377	$	1,191,380	$	1,132,545
Subcontractor	46,272		55,115		90,422		110,859
Revenue	$	648,578	$	632,492	$	1,281,802	$	1,243,404

Three months ended
June 30, Six months ended
June 30,
2020 2019 2020 2019
Prime contractor $ 577,377
$ 477,986
$ 1,132,545
$ 924,505
Subcontractor 55,115
59,051
110,859
114,462
Revenue $ 632,492
$ 537,037
$ 1,243,404
$ 1,038,967

The components of our receivables are as follows (in thousands):


	June 30, 2021		December 31, 2020
Billed receivables	$	364,760	$	312,991
Unbilled receivables	112,002		106,007
Allowance for doubtful accounts	(17,918)		(18,377)
Receivables—net	$	458,844	$	400,621

June 30, 2020 December 31, 2019
Billed receivables $ 357,092
$ 311,061
Unbilled receivables 100,290
99,493
Allowance for doubtful accounts (14,364 ) (11,578 )
Receivables—net $ 443,018
$ 398,976

Receivables at June 30, ~~2020~~2021 are expected to be substantially collected within one year except for approximately ~~$2.6~~$5.3 million, of which a majority is related to U.S. government receivables. We do not believe that we have significant exposure to credit risk as billed receivables and unbilled receivables are primarily due from the U.S. government. The allowance for doubtful accounts represents our estimate for exposure due to compliance, contractual issues and bad debts related to prime contractors.

~~The following table discloses~~At June 30, 2021 and December 31, 2020, our contract liabilities ~~(in thousands):~~

June 30, 2020 December 31, 2019
Contract liabilities $ 47,766
$ 27,620

are $30.6 million and $37.2 million, respectively. Changes in the balance of contract liabilities are primarily due to the timing difference between our performance and our customers' payments. For the three months ended June 30, ~~2020,~~2021, the amount of revenue that was included in the opening

contract liabilities balance ~~were $1.8~~was $3.9 million. For the six months ended June 30, ~~2020,~~2021, the amount of revenue that was included in the opening contract liabilities balance was ~~$18.5~~$29.4 million.

The remaining performance obligation as of June 30, ~~2020~~2021 is ~~$2.2~~$2.4 billion. The following table discloses when we expect to recognize the remaining performance obligation as revenue (in billions):


For the remaining six months ending December 31, 2021		For the year ending
For the remaining six months ending December 31, 2021		December 31, 2022		December 31, 2023		Thereafter
$	1.1	$	0.7	$	0.2	$	0.4

For the remaining six months ending December 31, 2020 For the year ending
December 31, 2021 December 31, 2022 Thereafter
$ 1.0
$ 0.7
$ 0.2
$ 0.3


4.	~~Acquisitions~~

~~H2M Group (H2M)~~4.Acquisitions

Tapestry Technologies (Tapestry)—On ~~August 8, 2019,~~December 11, 2020, we completed the acquisition of ~~H2M~~Tapestry through a ~~membership interest~~share purchase agreement by and among ~~H2M Group, HHM Holding LLC,~~ManTech International Corporation, Tapestry Technologies, Inc., Project Tribune Holdings, Inc. (Holdco), and all of the shareholders of the Holdco. Tapestry provides unique insight and cybersecurity solutions to the U.S. Defense Information Systems Agency (DISA) and the ~~Members and ManTech International Corporation. H2M is a provider~~Department of ~~intelligence and analysis services and solutions primarily to the National Geospatial-Intelligence Agency (NGA)~~Defense (DoD). This acquisition ~~strengthens~~broadens our ~~ability~~footprint with DISA, serves as a springboard into the broader Defense Department IT marketspace, and provides us access to ~~help key government agencies implement new automation techniques that enable intelligence analysts to more efficiently navigate large amounts of data~~well-funded DISA and ~~distill critical information to inform actionable intelligence and make mission-critical decisions.~~DoD programs.

The acquisition was accounted for as a business combination. The results of ~~H2M's~~Tapestry's operations have been included in our condensed consolidated financial statements since that date. We funded the acquisition with cash on hand and ~~borrowings on~~borrowing under our revolving credit facility.

The purchase price of ~~$38.5~~$46.3 million ~~which includes the finalized working capital adjustment, was~~has been preliminarily allocated to the underlying assets and liabilities based on their estimated fair value at the date of acquisition. The excess of the purchase price over the fair value of assets acquired and liabilities assumed was recorded as goodwill. ~~The~~As we are still in the process of reviewing the fair value of the assets acquired and liabilities assumed, the purchase price allocation for ~~H2M~~Tapestry is not complete as of June 30, ~~2020.~~2021. In accordance with ASC 805, Business Combinations, we expect to finalize our purchase price allocation within one year of the acquisition date.

Determining the fair value of assets acquired and liabilities assumed requires significant judgment, which includes, among other factors, analysis of historical performance and estimates of future performance of H2M's contracts. In some cases, we have used discounted cash flow analyses, which were based on our best estimate of future revenue, earnings and cash flows as well as our discount rate adjusted for risk.

Recognition of goodwill is largely attributed to the value paid for ~~H2M's~~Tapestry's capabilities, ~~to support government agencies in~~which will broaden our footprint within DISA and the ~~implementation of high-quality geospatial and professional services.~~Defense Department IT marketplace. The goodwill recorded for this transaction will be deductible for tax purposes over 15 years. The components of other intangible assets associated with the acquisition were customer relationships and backlog valued at ~~$9.6~~$15.1 million and ~~$2.3~~$1.4 million, respectively. The fair values of the customer relationships and backlog were determined using the excess earnings method (income approach) in which the value is derived from an estimation of the after-tax cash flows specifically attributable to backlog and customer relationships. Assumptions used in the analysis included revenue and expense forecasts, contributory asset charges, tax amortization benefit and discount rates. Customer contracts and related relationships represent the underlying relationships and agreements with ~~H2M's~~Tapestry's existing customers. Customer relationships are amortized using the pattern of benefits method over their estimated useful lives of approximately 20 years. Backlog is amortized using the pattern of benefits method over its estimated useful life of 2 years. The weighted-average amortization period ~~for~~of other ~~intangible assets~~intangibles is 1718 years.

The following table represents the preliminary purchase price allocation for ~~H2M~~Tapestry (in thousands):

Cash and cash equivalents $ 29
Receivables 4,187
Prepaid expenses 188
Other current assets 5
Goodwill 25,089
Other intangible assets 11,900
Operating lease right of use assets 152
Property and equipment 56
Other assets 7
Accounts payable and accrued expenses (1,956 )
Accrued salaries and related expenses (1,023 )
Operating lease obligations—long term (152 )
Net assets acquired and liabilities assumed $ 38,482


Cash and cash equivalents	$	36
Receivables	3,926
Prepaid expenses	225
Goodwill	27,013
Other intangible assets	16,500
Property and equipment	269
Operating lease right of use assets	934
Other assets	10
Accounts payable	(522)
Accrued salaries and related expenses	(1,142)
Operating lease obligations—current	(487)
Accrued expenses and other current liabilities	(59)
Operating lease obligations—long term	(453)
Net assets acquired and liabilities assumed	$	46,250

~~Kforce Government Solutions (KGS)~~

Minerva Engineering (Minerva)—On ~~April 1, 2019,~~November 9, 2020, we completed the acquisition of ~~KGS. KGS was~~Minerva through a ~~wholly owned subsidiary of the publicly traded commercial technology and staffing company KForce, Inc. The acquisition was completed through an equity~~membership interest purchase agreement ~~dated February 28, 2019,~~ by and among ~~Kforce Government Solutions, Inc and other beneficiaries and~~ ManTech International ~~Corporation. KGS provides~~Corporation, Minerva Engineering, LLC and NH Holdco LLC. Minerva is a leading provider of advanced cyber services ~~IT solutions, transformation~~that support the intelligence community, including risk and ~~management consulting~~vulnerability assessment, incident response and ~~data analytics - most notably in the healthcare IT market.~~cyber intrusion detection, and wireless signal discovery. This acquisition enhances and expands our ~~presence with important~~cyber defense capabilities within the intelligence community, adding new customers, ~~such as the Department of Veteran Affairs (VA).~~new past performance qualifications, mission-critical contracts, and highly skilled, cleared professionals that increase our deep cyber security talent base.

The acquisition was accounted for as a business combination. The results of ~~KGS's~~Minerva's operations have been included in our condensed consolidated financial statements since that date. We ~~funded~~paid for the acquisition with cash on ~~hand~~November 9, 2020 and ~~borrowings~~a short-term promissory note that was paid on ~~our revolving credit facility.~~November 12, 2020.

The preliminary purchase price, ~~of $114.6 million,~~ which includes ~~the finalized~~an estimated working capital adjustment, was $32.7 million. The preliminary purchase price has been preliminarily allocated to the underlying assets and liabilities based on their estimated fair value at the date of acquisition. The excess of the purchase price over the fair value of assets acquired and liabilities assumed was recorded as goodwill. ~~The~~As we are still in the process of reviewing the fair value of the assets acquired and liabilities assumed, the purchase price allocation ~~of KGS~~for Minerva is not complete as of June 30, ~~2020.~~2021. In accordance with ASC 805, Business Combinations, we expect to finalize our purchase price allocation within one year of the acquisition date.

Determining the fair value of assets acquired and liabilities assumed requires significant judgment, which includes, among other factors, analysis of historical performance and estimates of future performance of KGS’s contracts. In some cases, we have used discounted cash flow analyses, which were based on our best estimate of future revenue, earnings and cash flows as well as our discount rate adjusted for risk.

Recognition of goodwill is largely attributed to the value paid for ~~KGS's~~Minerva's capabilities, which will broaden our footprint within the intelligence community through the addition of differentiated capabilities and access to ~~support~~new customers ~~in IT solutions, transformation~~ and ~~management consulting and data analytics. A majority of the~~contracts. The goodwill recorded for this transaction will ~~not~~ be deductible for tax ~~purposes.~~

purposes over 15 years. The components of other intangible assets associated with the acquisition were customer relationships and backlog valued at ~~$33.1~~$10.5 million and ~~$1.6~~$1.1 million, respectively. The fair values of the customer relationships and backlog were determined using the excess earnings method (income approach) in which the value is derived from an estimation of the after-tax cash flows specifically attributable to backlog and customer relationships. Assumptions used in the analysis included revenue and expense forecasts, contributory asset charges, tax amortization benefit and discount rates. Customer contracts and related relationships represent the underlying relationships and agreements with ~~KGS's~~Minerva's existing customers. Customer relationships are amortized using the pattern of benefits method over their estimated useful lives of approximately 20 years. Backlog is amortized ~~straight-line~~using the pattern of benefits method over its estimated useful life of ~~1 year.~~2 years. The weighted-average amortization period for other intangible assets is 1918 years.

The following table represents the ~~finalized~~preliminary purchase price allocation for ~~KGS~~Minerva (in thousands):

Cash and cash equivalents $ 154
Receivables 17,071
Prepaid expenses 368
Other current assets 168
Goodwill 80,374
Other intangible assets 34,839
Property and equipment 361
Accounts payable and accrued expenses (6,895 )
Accrued salaries and related expenses (4,421 )
Deferred income taxes (7,087 )
Other long-term liabilities (379 )
Net assets acquired and liabilities assumed $ 114,553


5.Cash and cash equivalents	~~Earnings Per Share~~$	56
Receivables	4,573
Prepaid expenses	28
Goodwill	19,451
Other intangible assets	11,600
Property and equipment	149
Operating lease right of use assets	968
Other assets	29
Accounts payable	(1,875)
Accrued salaries and related expenses	(784)
Operating lease obligations—current	(384)
Accrued expenses and other current liabilities	(591)
Operating lease obligations—long term	(562)
Net assets acquired and liabilities assumed	$	32,658

5.Earnings Per Share

Under ASC 260, Earnings per Share, the two-class method is an earnings allocation formula that determines earnings per share for each class of common stock according to dividends declared (or accumulated) and participation rights in undistributed earnings. Under that method, basic and diluted earnings per share data are presented for each class of common stock.

In applying the two-class method, we determined that undistributed earnings should be allocated equally on a per share basis between Class A and Class B common stock. Under our Certificate of Incorporation, the holders of the common stock are entitled to participate ratably, on a share-for-share basis as if all shares of common stock were of a single class, in such dividends as may be declared by the Board of Directors. During the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we declared and paid atwo quarterly ~~dividend~~dividends in the ~~amount~~amounts of ~~$0.32~~$0.38 per share and ~~$0.27~~$0.32 per share, respectively, on both classes of common stock.

Basic earnings per share has been computed by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding during each period. Shares issued during the period and shares reacquired during the period are weighted for the portion of the period in which the shares were outstanding. Diluted earnings per share have been computed in a manner consistent with that of basic earnings per share while giving effect to all potentially dilutive common shares that were outstanding during each period.

The net income available to common stockholders and weighted average number of common shares outstanding used to compute basic and diluted earnings per share for each class of common stock are as follows (in thousands, except per share amounts):


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Distributed earnings	$	15,455	$	12,902	$	30,851	$	25,770
Undistributed earnings	21,154		17,046		38,086		32,857
Net income	$	36,609	$	29,948	$	68,937	$	58,627

Class A common stock:
Basic net income available to common stockholders	$	24,730	$	20,141	$	46,537	$	39,407
Basic weighted average common shares outstanding	27,434		27,082		27,376		27,037
Basic earnings per share	$	0.90	$	0.74	$	1.70	$	1.46

Diluted net income available to common stockholders	$	24,830	$	20,220	$	46,741	$	39,576
Effect of potential exercise of stock options	345		327		373		358
Diluted weighted average common shares outstanding	27,779		27,409		27,749		27,395
Diluted earnings per share	$	0.89	$	0.74	$	1.68	$	1.44

Class B common stock:
Basic net income available to common stockholders	$	11,879	$	9,807	$	22,400	$	19,220
Basic weighted average common shares outstanding	13,177		13,187		13,177		13,187
Basic earnings per share	$	0.90	$	0.74	$	1.70	$	1.46

Diluted net income available to common stockholders	$	11,779	$	9,728	$	22,196	$	19,051
Diluted weighted average common shares outstanding	13,177		13,187		13,177		13,187
Diluted earnings per share	$	0.89	$	0.74	$	1.68	$	1.44

Three months ended
June 30, Six months ended
June 30,
2020 2019 2020 2019
Distributed earnings $ 12,902
$ 10,788
$ 25,770
$ 21,537
Undistributed earnings 17,046
13,426
32,857
23,795
Net income $ 29,948
$ 24,214
$ 58,627
$ 45,332

Class A common stock:
Basic net income available to common stockholders $ 20,141
$ 16,210
$ 39,407
$ 30,324
Basic weighted average common shares outstanding 27,082
26,707
27,037
26,646
Basic earnings per share $ 0.74
$ 0.61
$ 1.46
$ 1.14

Diluted net income available to common stockholders $ 20,220
$ 16,255
$ 39,576
$ 30,411
Effect of potential exercise of stock options 327
229
358
232
Diluted weighted average common shares outstanding 27,409
26,936
27,395
26,878
Diluted earnings per share $ 0.74
$ 0.60
$ 1.44
$ 1.13

Class B common stock:
Basic net income available to common stockholders $ 9,807
$ 8,004
$ 19,220
$ 15,008
Basic weighted average common shares outstanding 13,187
13,188
13,187
13,188
Basic earnings per share $ 0.74
$ 0.61
$ 1.46
$ 1.14

Diluted net income available to common stockholders $ 9,728
$ 7,959
$ 19,051
$ 14,921
Diluted weighted average common shares outstanding 13,187
13,188
13,187
13,188
Diluted earnings per share $ 0.74
$ 0.60
$ 1.44
$ 1.13

For the three months ended June 30, ~~2020~~2021 and ~~2019,~~2020, options to purchase ~~228,816~~428 shares and ~~479,685~~228,816 shares, respectively, were outstanding but not included in the computation of diluted earnings per share because the options' effect would have been anti-dilutive. For the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, options to purchase ~~231,938~~411 shares and ~~496,859~~231,938 shares, respectively, were outstanding but not included in the computation of diluted earnings per share because the options' effect would have been anti-dilutive. For the six months ended ~~June~~ June��30, ~~2020~~2021 and ~~2019,~~2020, there were ~~103,660~~125,534 shares and ~~144,585~~103,660 shares, respectively, issued from the exercise of stock options. For the six months ended June 30, ~~2020~~2021 and ~~2019~~2020 there were ~~48,861~~117,129 shares and ~~72,493~~48,861 shares, respectively, issued from the vesting of restricted stock units.


6.	~~Property and Equipment~~

6.Property and Equipment

Major classes of property and equipment are summarized as follows (in thousands):


	June 30, 2021		December 31, 2020
Furniture and equipment	$	216,294	$	194,470
Leasehold improvements	68,049		62,293
Finance leases	767		705
Property and equipment—gross	285,110		257,468
Accumulated depreciation and amortization	(156,555)		(136,172)
Property and equipment—net	$	128,555	$	121,296

June 30,
2020 December 31,
2019
Furniture and equipment $ 184,038
$ 150,640
Leasehold improvements 50,817
49,625
Finance leases 704
641
Property and equipment—gross 235,559
200,906
Accumulated depreciation and amortization (124,178 ) (115,275 )
Property and equipment—net $ 111,381
$ 85,631

Depreciation and amortization expense related to property and equipment for the three months ended June 30, 2021 and 2020 ~~and 2019~~ was ~~$9.7~~$11.7 million and ~~$6.2~~$9.7 million, respectively. Depreciation and amortization expense related to property and equipment for the six months ended June 30, 2021 and 2020 was $23.2 million and ~~2019 was~~ $18.5 million, ~~and $12.5 million,~~ respectively.


7.	~~Goodwill and Other Intangible Assets~~

7.Goodwill and Other Intangible Assets

The change in the carrying amount of goodwill during the year ended December 31, ~~2019~~2020 and six months ended June 30, ~~2020~~2021 are as follows (in thousands):


	Goodwill Balance
Goodwill at December 31, 2019	$	1,191,259
Acquisitions	46,624
Acquisition fair value adjustment	11
Goodwill at December 31, 2020	1,237,894
Acquisition fair value adjustment	(160)
Goodwill at June 30, 2021	$	1,237,734

Goodwill Balance
Goodwill at December 31, 2018 $ 1,085,806
Acquisitions 105,453
Goodwill at December 31, 2019 1,191,259
Acquisition fair value adjustment 11
Goodwill at June 30, 2020 $ 1,191,270

Other intangible assets consisted of the following (in thousands):

June 30, 2020 December 31, 2019
Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount
Other intangible assets:
Contract and program intangible assets $ 402,532
$ 231,971
$ 170,561
$ 402,532
$ 221,437
$ 181,095
Capitalized software 56,075
37,985
18,090
52,411
36,728
15,683
Total other intangible assets—net $ 458,607
$ 269,956
$ 188,651
$ 454,943
$ 258,165
$ 196,778


	June 30, 2021						December 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Other intangible assets:
Contract and program intangible assets	$	430,632	$	252,191	$	178,441	$	430,632	$	242,194	$	188,438
Capitalized software	54,571		43,930		10,641		54,605		40,812		13,793
Total other intangible assets—net	$	485,203	$	296,121	$	189,082	$	485,237	$	283,006	$	202,231

Amortization expense relating to intangible assets for the three months ended June 30, 2021 and 2020 ~~and 2019~~ was ~~$6.5~~$6.3 million and ~~$6.1~~$6.5 million, respectively. Amortization expense relating to intangible assets for the six months ended June 30, 2021 and 2020 was $13.1 million and ~~2019 was~~ $13.0 million, ~~and $11.9~~respectively. Amortization expense for the six months ended June 30, 2021 includes an impairment of $0.3 million ~~respectively.~~for capitalized software. We estimate that we will have the following amortization expense for the future periods indicated below (in thousands):

For the remaining six months ending December 31, 2020 $ 12,865
For the year ending:
December 31, 2021 $ 23,932
December 31, 2022 $ 21,306
December 31, 2023 $ 18,021
December 31, 2024 $ 16,276
December 31, 2025 $ 13,789


8.For the remaining six months ending December 31, 2021	~~Debt~~$	11,790
For the year ending:
December 31, 2022	$	23,974
December 31, 2023	$	19,546
December 31, 2024	$	17,486
December 31, 2025	$	15,423
December 31, 2026	$	14,331

8.Debt

Revolving Credit Facility—We maintain a credit facility with a syndicate of lenders led by Bank of America, N.A., as sole administrative agent. The credit agreement provides for a $500 million revolving credit facility, with a $75 million letter of credit sublimit and a $30 million swing line loan sublimit. The credit agreement also includes an accordion feature that permits us to arrange with the lenders for the provision of additional commitments. The maturity date is August 17, 2022.

Borrowings under our credit agreement are collateralized by substantially all of our assets and those of our Material Subsidiaries (as defined in the credit agreement) and bear interest at one of the following variable rates as selected by us at the

time of borrowing: a London Interbank Offer Rate base rate plus market-rate spreads (1.25% to 2.25% based on our consolidated total leverage ratio) or Bank of America's base rate plus market spreads (0.25% to 1.25% based on our consolidated total leverage ratio).

The terms of the credit agreement permit prepayment and termination of the loan commitments at any time, subject to certain

conditions. The credit agreement requires us to comply with specified financial covenants, including the maintenance of certain leverage ratios and a consolidated coverage ratio. The credit agreement also contains various covenants, including affirmative covenants with respect to certain reporting requirements and maintaining certain business activities, and negative covenants that, among other things, may limit or impose restrictions on our ability to incur liens, incur additional indebtedness, make investments, make acquisitions and undertake certain other actions. As of and during the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we were in compliance with the financial covenants under the credit agreement.

There was ~~$20.0~~$30.0 million and ~~$36.5~~$15.0 million outstanding on our revolving credit facility at June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, respectively. The maximum available borrowing under the revolving credit facility at June 30, ~~2020~~2021 was ~~$473.7~~$467.9 million. As of June 30, ~~2020,~~2021, we were contingently liable under letters of credit totaling ~~$6.3~~$2.1 million, which reduces our availability to borrow under our revolving credit facility.


9.	~~Commitments and Contingencies~~

9.Commitments and Contingencies

Contracts with the U.S. government, including subcontracts, are subject to extensive legal and regulatory requirements and, from time-to-time, agencies of the U.S. government, in the ordinary course of business, investigate whether our operations are conducted in accordance with these requirements and the terms of the relevant contracts. U.S. government investigations of us, whether related to our U.S. government contracts or conducted for other reasons, could result in administrative, civil or criminal liabilities, including repayments, fines or penalties being imposed upon us, or could lead to suspension or debarment from future U.S. government contracting activities. Management believes it has adequately reserved for any losses that may be experienced from any investigation of which it is aware. The Defense Contract Audit Agency has substantially completed our incurred cost audits through ~~2016~~2018 with no material adjustments. The remaining audits for ~~2017~~2019 through ~~2019~~2020 are not expected to have a material effect on our financial position, results of operations or cash flow and management believes it has adequately reserved for any losses.

In the normal course of business, we are involved in certain governmental and legal proceedings, claims and disputes and have litigation pending under several suits. We believe that the ultimate resolution of these matters will not have a material effect on our financial position, results of operations or cash flows.

We have ~~$6.3~~$2.1 million outstanding on our letter of credit, of which ~~$5.7~~$1.6 million is related to an outstanding performance bond in connection with a contract between ManTech MENA, LLC and Jadwalean International Operations and Management Company to fulfill technical support requirements for the Royal Saudi Air Force.


~~10.~~	~~Stock-Based Compensation~~

10.Stock-Based Compensation

Our 2016 Management Incentive Plan (the Plan) was designed to attract, retain and motivate key employees. The types of awards available under the Plan include, among others, stock options, restricted stock and restricted stock units (RSUs), among others. Equity awards granted under the Plan are settled in shares of Class A common stock. At the beginning of each year, the Plan provides that the number of shares available for issuance automatically increases by an amount equal to 1.5% of the total number of shares of Class A and Class B common stock outstanding on December 31^st of the previous year. On January 2, ~~2020,~~2021, there were ~~602,684~~607,066 additional shares made available for issuance under the Plan. Through June 30, ~~2020,~~2021, the Board of Directors has authorized the issuance of up to ~~15,751,005~~16,358,071 shares under this Plan. Through June 30, ~~2020,~~2021, the remaining aggregate number of shares of our common stock available for future grants under the Plan was ~~7,068,410.~~7,690,133. The Plan expires in March 2026.

The Plan is administered by the compensation committee of our Board of Directors, along with its delegates. Subject to the express provisions of the Plan, the committee has the Board of Directors’ authority to administer and interpret the Plan, including the discretion to determine the exercise price, vesting schedule, contractual life and the number of shares to be issued.

Stock Compensation Expense—For the three months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we recorded $4.2 million and $2.9 million, ~~and $1.9 million~~respectively, of stock-based compensation expense. For the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we recorded $7.6 million and $5.5 million, ~~and $3.2 million~~respectively, of stock-based compensation expense. NaN compensation expense of employees with stock awards, including stock-based compensation expense, was capitalized during the periods. For the three months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we recorded $0.5 million and $0.3 million, respectively, to income tax benefit related to the

exercise of stock options, vested cancellations and ~~$0.5~~the vesting of restricted stock and restricted stock units. For the six months ended June 30, 2021 and 2020, we recorded $1.5 million and $0.8 million, respectively, to income tax benefit related to the exercise of stock options, vested cancellations and the vesting of restricted stock and restricted stock units. For the six months ended June 30, 2020 and 2019, we recorded $0.8 million and $0.7 million, respectively, to income tax benefit related to the exercise of stock options, vested cancellations and the vesting of restricted stock and restricted stock units.

Stock Options—Under the Plan, we have issued stock ~~options.~~options in the past. A stock option gives the holder the right, but not the obligation to purchase a certain number of shares at a predetermined price for a specific ~~period.~~period of time. We did not grant any options during the six months ended June 30, 2021 and year ended December 31, 2020.

~~Fair Value Determination~~—We have used the Black-Scholes-Merton option pricing model to determine the fair value of our awards on the date of grant. We will reconsider the use of the Black-Scholes-Merton model if additional information becomes available in the future that indicates another model would be more appropriate or if grants issued in future periods have characteristics that cannot be reasonably estimated under this model.

~~There were 0 option grants during the six months ended June 30, 2020. The following weighted-average assumptions were used for option grants during the six months ended June 30, 2019:~~


•	~~Volatility—The expected volatility of the options granted was estimated based upon historical volatility of our share price through weekly observations of our trading history.~~


•	~~Expected life of options~~—The expected life of options granted to employees was determined from historical exercises of the grantee population. The options had graded vesting over three years in equal installments beginning on the first anniversary of the date of grant and a contractual term of five years.


•	~~Risk-free interest rate~~—The yield on zero-coupon U.S. Treasury strips was used to extrapolate a forward-yield curve. This “term structure” of future interest rates was then input into a numeric model to provide the equivalent risk-free rate to be used in the Black-Scholes-Merton model based on the expected term of the underlying grants.


•	~~Dividend Yield~~—The Black-Scholes-Merton valuation model requires an expected dividend yield as an input. For the six months ended June 30, 2019, we have calculated our expected dividend yield based on an expected annual cash dividend of $1.08 per share.

~~The following table summarizes weighted-average assumptions used in our calculations of fair value for the six months ended June 30, 2019:~~



	Six months ended June 30, 2019
~~Volatility~~	~~27.00~~	%
~~Expected life of options~~	~~3 years~~
~~Risk-free interest rate~~	~~2.39~~	%
~~Dividend yield~~	~~2.00~~	%

~~Stock Option Activity~~—NaN options were granted during the six months ended June 30, 2020. The weighted-average fair value of options granted during the six months ended June 30, 2019, as determined under the Black-Scholes-Merton valuation model, was $10.07. Option grants that vested during the six months ended June 30, ~~2020~~2021 and ~~2019~~2020 had a combined fair value of $1.1 million and $1.7 million, ~~and $1.2 million,~~ respectively.

The following table summarizes stock option activity for the year ended December 31, ~~2019~~2020 and the six months ended June 30, ~~2020:~~2021:


	Number of Shares	Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)		Weighted Average Remaining Contractual Life
Stock options outstanding at December 31, 2019	1,136,095	$	54.98	$	28,291
Exercised	(223,405)	$	46.72	$	6,897
Cancelled and expired	(126,863)	$	61.17
Stock options outstanding at December 31, 2020	785,827	$	56.33	$	25,629
Exercised	(125,534)	$	49.75	$	4,758
Cancelled and expired	(8,808)	$	64.04
Stock options outstanding at June 30, 2021	651,485	$	57.49	$	18,927	2 years

Stock options exercisable at June 30, 2021	419,532	$	53.23	$	13,973	2 years

Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value
(in thousands) Weighted Average Remaining Contractual Life
Stock options outstanding at December 31, 2018 1,093,400
$ 45.34
$ 8,776

Granted 489,947
$ 63.87

Exercised (338,748 ) $ 37.94
$ 9,641

Cancelled and expired (108,504 ) $ 51.21

Stock options outstanding at December 31, 2019 1,136,095
$ 54.98
$ 28,291

Exercised (103,660 ) $ 47.10
$ 3,227

Cancelled and expired (98,446 ) $ 60.89

Stock options outstanding at June 30, 2020 933,989
$ 55.23
$ 13,662
3 years

Stock options exercisable at June 30, 2020 382,652
$ 46.37
$ 8,467
2 years

The following table summarizes non-vested stock options for the six months ended June 30, ~~2020:~~2021:


	Number of Shares	Weighted Average Fair Value
Non-vested stock options at December 31, 2020	353,643	$	11.66
Vested	(113,516)	$	10.06
Cancelled	(8,174)	$	12.25
Non-vested stock options at June 30, 2021	231,953	$	12.42

Number of Shares Weighted Average Fair Value
Non-vested stock options at December 31, 2019 845,555
$ 10.88
Vested (197,689 ) $ 8.76
Cancelled (96,529 ) $ 11.56
Non-vested stock options at June 30, 2020 551,337
$ 11.52

Unrecognized compensation expense related to non-vested awards was ~~$4.7~~$1.8 million as of June 30, ~~2020,~~2021, which is expected to be recognized over a weighted-average period of ~~2 years.~~1 year.

Restricted Stock—Under the Plan, we have issued restricted stock. A restricted stock award is an issuance of shares that cannot be sold or transferred by the recipient until the vesting period lapses. Restricted stock issued to members of our Board of Directors vest on the one year anniversary of the grant date. The related compensation expense is recognized over the service period and is based on the grant date fair value of the stock. The grant date fair value of the restricted stock is equal to the closing market price of our common stock on the date of grant.

~~Restricted Stock Activity~~
—

The following table summarizes the restricted stock activity during the year ended December 31, ~~2019~~2020 and the six months ended June 30, ~~2020.~~2021:


	Number of Shares	Weighted Average Fair Value
Non-vested restricted stock at December 31, 2019	24,000	$	62.66
Granted	24,000	$	71.11
Vested	(24,000)	$	62.66
Non-vested restricted stock at December 31, 2020	24,000	$	71.11
Granted	24,000	$	86.01
Vested	(24,000)	$	71.11
Non-vested restricted stock at June 30, 2021	24,000	$	86.01

Number of Shares Weighted Average Fair Value
Non-vested restricted stock at December 31, 2018 20,000
$ 52.83
Granted 24,000
$ 62.66
Vested (20,000 ) $ 52.83
Non-vested restricted stock at December 31, 2019 24,000
$ 62.66
Granted 24,000
$ 71.11
Vested (24,000 ) $ 62.66
Non-vested restricted stock at June 30, 2020 24,000
$ 71.11

RSUs—Under the Plan, we have issued restricted stock units (RSUs). RSUs are not actual shares, but rather a right to receive shares in the future. The shares are not issued and the employee cannot sell or transfer shares prior to vesting and have no voting rights until the RSUs vest. Employees who are granted RSUs do not receive dividend payments during the vesting period. Our employees' ~~performance-based RSUs will result in the delivery of shares if (a) performance criteria is met and (b) the employee~~

~~remains employed, in good standing, through the date of the performance period. Our employees'~~ time-based RSUs ~~will result in~~generally provide for the delivery of shares in one-third increments on the first, second and third anniversaries of the date of grant. The grant date fair value of the RSUs is equal to the closing market price of our common stock on the grant date less the present value of dividends expected to be awarded during the service period. We recognize the grant date fair value of RSUs of shares we expect to issue as compensation expense ratably over the requisite service period.

~~RSU Activity~~
—For performance-based RSUs that vested in the six months ended June 30, 2020, each RSU awarded resulted in the issuance of 1 share, which were issued net of applicable payroll tax withholdings. For the year ended December 31, 2019, each RSU awarded resulted in the issuance of 1.5 shares, which were issued net of applicable payroll tax withholdings.

The following table summarizes the non-vested RSU activity during the year ended December 31, ~~2019~~2020 and the six months ended June 30, ~~2020:~~2021:


	Number of Units	Weighted Average Fair Value
Non-vested RSUs at December 31, 2019	210,827	$	55.31
Granted	266,880	$	68.83
Vested	(73,047)	$	53.85
Forfeited	(57,861)	$	64.52
Non-vested RSUs at December 31, 2020	346,799	$	64.48
Granted	197,580	$	78.62
Vested	(93,129)	$	61.11
Forfeited	(10,816)	$	58.13
Non-vested RSUs at June 30, 2021	440,434	$	71.69

Number of Units Weighted Average Fair Value
Non-vested RSUs at December 31, 2018 137,596
$ 45.11
Granted 145,440
$ 59.43
Vested (60,915 ) $ 42.75
Forfeited (11,294 ) $ 51.88
Non-vested RSUs at December 31, 2019 210,827
$ 55.31
Granted 187,450
$ 68.29
Vested (35,882 ) $ 51.80
Forfeited (43,970 ) $ 63.59
Non-vested RSUs at June 30, 2020 318,425
$ 62.21

11. Subsequent Events

On July 20, 2021, we amended and restated our revolving credit facility (Third Amended and Restated Credit Agreement) with a syndicate of lenders led by Bank of America, N.A., as sole administrative agent. The Third Amended and Restated Credit Agreement includes credit facilities in an aggregate principal amount of up to $1.1 billion, made available through (i) a $500 million revolving credit facility (Revolving Credit Facility), and (ii) a $600 million delayed-draw term loan facility (Term Facility). Each of the Revolving Credit Facility and the Term Facility matures on July 20, 2026. Under the Term Facility, borrowings are available to be drawn prior to the first anniversary of the Third Amended and Restated Credit Agreement in up to three separate drawings in a minimal amount of $50 million. The Third Amended and Restated Credit Agreement also includes an accordion feature that permits us to arrange with the lenders for the provision of additional commitments.

The Third Amended and Restated Credit Agreement requires us to comply with specified financial covenants, including the maintenance of certain leverage ratios and a consolidated interest coverage ratio. The credit agreement also contains various covenants, including affirmative covenants with respect to certain reporting requirements and maintaining certain business activities, and negative covenants that, among other things, may limit or impose restrictions on our ability to incur liens, incur additional indebtedness, make investments, make acquisitions and undertake certain other actions.

Borrowings under our amended and restated credit agreement are collateralized by substantially all of our assets and those

of our Material Subsidiaries (as defined in the credit agreement) and bear interest at one of the following variable rates as selected by us at the time of borrowing: a London Interbank Offer Rate base rate plus market-rate spreads (1.25% to 2.00% based on our consolidated total leverage ratio) or Bank of America's prime rate plus market spreads (0.25% to 1.00% based on our consolidated net leverage ratio).

We incurred $3.3 million in related fees which will be deferred and amortized over the term of the amended and restated credit agreement.


~~Item 2.~~	Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Cautionary Note Regarding Forward-Looking Statements

All statements and assumptions contained in this Quarterly Report on Form 10-Q that do not relate to historical facts constitute "forward-looking statements." These statements can be identified by the fact that they do not relate strictly to historical or current facts. Forward-looking statements often include the use of words such as "may," "will," "expect," "intend," "anticipate," "believe," "estimate," "plan" and words and terms of similar substance in connection with discussions of future events, situations or financial performance. While these statements represent our current expectations, no assurance can be given that the results or events described in such statements will be achieved.

Forward-looking statements may include, among other things, statements with respect to our financial condition, results of operations, prospects, business strategies, competitive position, growth opportunities, and plans and objectives of management. Such statements are subject to numerous assumptions, risks, uncertainties and other factors, many of which are outside of our control, and include, without limitations, the risks and uncertainties discussed in the Item 1A "Risk Factors" in Part I of our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019.~~2020.

Factors or risks that could cause our actual results to differ materially from the results we anticipate include, but are not limited to, the following:

•failure to maintain our relationship with the U.S. government, or the failure to compete effectively for new contract awards or to retain existing U.S. government contracts;

disruptions to our business resulting from the recent outbreak of the novel coronavirus disease 2019 (known as COVID-19) or other similar global health epidemics, pandemics and/or other disease outbreaks;

•adverse changes in U.S. government spending for programs we support, whether due to changing mission priorities, ~~economic and political policy change~~socio-economic policies or federal budget constraints generally;

•disruptions to our business or damage to our reputation resulting from cyber attacks and other security threats;

•disruptions to our business resulting from the COVID-19 pandemic or other similar global health epidemics, pandemics and/or other disease outbreaks;

•inability to recruit and retain a sufficient number of employees with specialized skill sets or necessary security clearances who are in great demand and limited supply;

•failure to compete effectively for awards procured through the competitive bidding process, and the adverse impact of delays resulting from our competitors' protests of new contracts that are awarded to us;

~~disruptions to our business or damage to our reputation resulting from cyber attacks and other security threats;~~

•failure to obtain option awards, task orders or funding under our contracts;

•the government renegotiating, modifying or terminating our contracts;

•failure to comply with, or adverse changes in, complex U.S. government laws and procurement regulations;

•adverse results of U.S. government audits or other investigations of our government contracts;

•failure to successfully integrate acquired companies or businesses into our operations or to realize any accretive or synergistic effects from such acquisitions;

•failure to mitigate risks associated with conducting business internationally; and

•adverse changes in business conditions that may cause our investments in recorded goodwill to become impaired.

We urge you not to place undue reliance on these forward-looking statements, which speak only as of the date of this Quarterly Report. We undertake no obligation to update any forward-looking statement made herein following the date of this Quarterly Report, whether as a result of new information, subsequent events or circumstances, changes in expectations or otherwise.

Overview

We provide mission-focused technology solutions and services for U.S. defense, intelligence community and federal civilian agencies. We excel in full-spectrum cyber, secure mission & enterprise IT, advanced data ~~collection &~~ analytics, ~~enterprise information technology (IT),~~software and systems development, intelligent systems engineering, intelligence mission support and ~~software engineering solutions that support national and homeland security.~~mission operations.

Approximately ~~98%~~99% of our revenues are generated through contracts with the U.S. federal government, or through prime contractors supporting the U.S. government. The U.S. government is the largest consumer of services and solutions in the U.S. As such, our business is impacted by the overall U.S. government budget and our ability to match our capabilities and offerings to the U.S. government's spending priorities. InOn December ~~2019,~~27, 2020, Congress passed, and the President signed into law ~~two appropriation bills funding~~ the Consolidated Appropriations Act of 2020. The Consolidated Appropriations Act funds the federal government through GFY ~~2020. We believe~~2021 and contains $696 billion of funding for defense. The President's proposal for GFY 2022 contains $753 billion for defense and $769 billion for non-defense. Included within the ~~current appropriations~~proposal is $20 billion for unclassified cyber, representing 9% year-over-year growth and $97 billion for IT modernization, representing 4% year-over-year growth.

On August 1, 2021, the ~~Administration's stated priorities for national and homeland security aligns favorably with our capabilities and offerings.~~

~~COVID-19 and Budgetary Outlook~~

~~We cannot predict the future impact~~suspension of the ~~COVID-19 pandemic and~~U.S. statutory debt ceiling limit expired. If Congress fails to increase or further suspend the ~~resulting impact on~~debt ceiling prior to exhausting its monetary resources, the ~~economy; however, it~~U.S. government could experience a shutdown or be unable to make payments which could have a material adverse effect on our ~~business, financial position,~~liquidity and results of ~~operations, and/or cash flows. The~~operations.

COVID-19 Pandemic

We are continuing to monitor impacts of the global outbreak of the COVID-19 pandemic ~~along with various~~including new variants of the virus. With the rollout of the vaccine, previous measures ~~that~~adopted by local, state and federal governments ~~have adopted~~ to mitigate its impact have ~~required us to make changes to our operations to enable our employees to continue supporting our customers' mission-critical needs~~been, or are in ~~this period~~the process of ~~disruption. As~~being, lifted. The removal of these mitigation protocols has allowed a result of travel restrictions, social distancing guidelines and other efforts that have been adopted by public health officials to mitigate the impact of the COVID-19 pandemic, we have made changes to our operating schedules and staffing plans to accommodate these restrictions while maintaining the abilitymajority of our employees to continue to support and work with our customers to the maximum extent possible. The changes include the implementation of telework or other means of remote work for our employees, who support both mission-critical programs and our internal support organization. With respect to ourpreviously impacted programs to return to normal operations.

For programs that ~~by their nature, cannot be supported remotely, we have accommodated those customers who have implemented shiftwork~~had been impacted or ~~other mitigation protocols by maintaining our workforce in a “mission ready” state.~~

~~On March 27, 2020,~~are still being impacted, the Coronavirus Aid, Relief and Economic Security (CARES) Act, ~~was enacted. The CARES Act includes~~enacted on March 27, 2020, included a provision (Section 3610) under which government contractors can seek reimbursement for ~~amounts lost due~~employee's salaries when they are prevented from accessing worksites or are subject to ~~the impacts of closed facilities,~~ reduced work schedules ~~or mandated quarantines to support social distancing.~~and cannot telecommute. These provisions were extended on March 11, 2021 when the President signed into law the American Rescue Plan (ARP) Act of 2021. The ARP Act is a $1.9 trillion stimulus package aimed at further combating the economic impacts of the COVID-19 pandemic. The extension contained within the ARP Act expires on September 30, 2021. The precise application of this provision, including what type of costs will be reimbursed, the earliest date cost-reimbursement will be applicable, and whether fee recovery will be included in the reimbursement, are determinations being made at the individual government agency or contract level. ~~We currently expect~~Currently, our customers ~~will reimburse~~are reimbursing costs incurred without fee. ~~The relevant provision~~We cannot predict the duration of the ~~CARES Act is in effect until September 30, 2020. Should~~pandemic, nor the CARES Act not be extended, or similar legislation enacted, while social distancing, travel restrictions, or other pandemic risk reduction measures remain in effect, it could have a material adverse effect on our business, financial position, results of operations, and/or cash flows. We continue to monitor and evaluate this and other provisionsoverall effectiveness of the ~~CARES Act, as well as any other legislative~~vaccine, however, an extended duration or ~~regulatory initiatives that seek to reduce the impact~~resurgence of the pandemic. Additionally, there is a strong likelihood that the federal government will enter GFY 2021 under a Continuing Resolution as debates and negotiations on appropriations and funding priorities continue in Congress. It is possible that a Continuing Resolution could potentially delay new contract awards.

~~To date, the majority of our programs~~pandemic may have not been adversely impacted (or we have developed alternative means, including teleworking arrangements, to support program requirements). With respect to our programs that have been adversely impacted, we have begun seeking reimbursements under the CARES Act. Due to the mission-critical nature of a majority of our business and the relief provided to us under the CARES Act, the overallan adverse impact ~~of the COVID-19 pandemic~~ on our results of ~~operations~~operations.

We classify indirect expenses either as cost of services or general and ~~liquidity were immaterial. In addition to~~administrative in manner consistent with disclosure statements submitted and approved by the ~~measures described above,~~Defense Contract Management Agency (DCMA). Effective for 2021, we have ~~developed contingency plans (which we continuously reevaluate)~~reclassified certain expenses from general and administrative to ~~address additional disruptions~~cost of sales (overhead). While this does not impact indirect expenses in total, it does reduce general and administrative as compared to ~~our operations or to the operations of our customers. See “Item IA. Risk Factors” in Part II of this Quarterly Report for additional discussion of the risks associated with COVID-19.~~prior periods.

We recommend that you read this discussion and analysis in conjunction with our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019,~~2020, previously filed with the Securities and Exchange Commission.

Three Months Ended June 30, ~~2020~~2021 Compared to the Three Months Ended ~~June 30, 2019~~

The following table sets forth certain items from our condensed consolidated statements of income and the relative percentage that certain items of expenses and earnings bear to revenue, as well as the period-to-period change from ~~June 30, 2019~~ to June 30, 2020.

Three months ended
June 30, Period-to-Period Change
2020 2019 2020 2019 2019 to 2020
Dollars Percentage Dollars Percentage
(dollars in thousands)
REVENUE $ 632,492
$ 537,037
100.0 % 100.0 % $ 95,455
17.8 %
Cost of services 539,473
459,266
85.3 % 85.5 % 80,207
17.5 %
General and administrative expenses 53,433
44,474
8.4 % 8.3 % 8,959
20.1 %
OPERATING INCOME 39,586
33,297
6.3 % 6.2 % 6,289
18.9 %
Interest expense (632 ) (945 ) 0.1 % 0.2 % (313 ) (33.1 )%
Interest income 137
121
— % — % 16
13.2 %
Other income, net —
31
— % — % (31 ) (100.0 )%
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS 39,091
32,504
6.2 % 6.0 % 6,587
20.3 %
Provision for income taxes (9,143 ) (8,290 ) 1.5 % 1.5 % 853
10.3 %
NET INCOME $ 29,948
$ 24,214
4.7 % 4.5 % $ 5,734
23.7 %

~~Revenue~~

The primary driver of our increase in revenues relates to revenue from new contract awards, growth on certain existing contracts and our recent acquisitions, which were offset by contracts and tasks that ended and reduced scope of work on some contracts. Due to COVID travel and social distancing restrictions, we have experienced an increase in revenue related to higher direct labor due to a decline in our employee's utilization of paid time off.

~~Cost of services~~

The increase in cost of services was primarily due to increases in revenue. As a percentage of revenue, direct labor costs were 49% and 48% for the three months ended June 30, 2020 and 2019, respectively. As a percentage of revenues, other direct costs, which include subcontractors and third party equipment and materials used in the performance of our contracts, were 37% for the three months ended June 30, 2020, compared to 38% for the same period in 2019.

~~General and administrative expenses~~

The increase in general and administrative expenses was primarily due to increased expenditures to support the growth of our business, bid and proposal spending and bad debt expense, offset by lower travel and other indirect spending impacted by COVID-19 restrictions.

~~Interest expense~~

~~The decrease in interest expense was due to repayment of borrowing on our revolving credit facility.~~

~~Provision for income taxes~~

Our effective tax rate is affected by recurring items, such as the relative amount of income we earn in various taxing jurisdictions and their tax rates. It is also affected by discrete items that may occur in any given year, but are not consistent from year-to-year. Our effective income tax rate was 23% and 26% for the three months ended June 30, 2020 and 2019, respectively. The three months ending June 30, 2020 included an increased level of research and development credits over the same period in 2019 and improved performance in our deferred compensation plan assets due to a rebound in the equity markets during the quarter.

~~Six Months Ended June 30, 2020 Compared to the Six Months Ended June 30, 2019~~


	Three months ended June 30,								Period-to-Period Change
	2021		2020		2021		2020		2020 to 2021
	Dollars				Percentage				Dollars		Percentage
	(dollars in thousands)
REVENUE	$	648,578	$	632,492	100.0	%	100.0	%	$	16,086	2.5	%
Cost of services	552,868		539,473		85.2	%	85.3	%	13,395		2.5	%
General and administrative expenses	47,048		53,433		7.3	%	8.4	%	(6,385)		(11.9)	%
OPERATING INCOME	48,662		39,586		7.5	%	6.3	%	9,076		22.9	%
Interest expense	(366)		(632)		0.1	%	0.1	%	(266)		(42.1)	%
Interest income	39		137		—	%	—	%	(98)		(71.5)	%
Other expense, net	(12)		—		—	%	—	%	12		—	%
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS	48,323		39,091		7.4	%	6.2	%	9,232		23.6	%
Provision for income taxes	(11,714)		(9,143)		1.8	%	1.5	%	2,571		28.1	%
NET INCOME	$	36,609	$	29,948	5.6	%	4.7	%	$	6,661	22.2	%

Six months ended
June 30, Period-to-Period Change
2020 2019 2020 2019 2019 to 2020
Dollars Percentage Dollars Percentage
(dollars in thousands)
REVENUE $ 1,243,404
$ 1,038,967
100.0 % 100.0 % $ 204,437
19.7 %
Cost of services 1,059,764
890,349
85.2 % 85.7 % 169,415
19.0 %
General and administrative expenses 105,156
86,789
8.5 % 8.4 % 18,367
21.2 %
OPERATING INCOME 78,484
61,829
6.3 % 5.9 % 16,655
26.9 %
Interest expense (1,287 ) (1,429 ) 0.1 % 0.1 % (142 ) (9.9 )%
Interest income 187
311
— % — % (124 ) (39.9 )%
Other (expense), net (22 ) (11 ) — % — % 11
100.0 %
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS 77,362
60,700
6.2 % 5.8 % 16,662
27.4 %
Provision for income taxes (18,734 ) (15,356 ) 1.5 % 1.4 % 3,378
22.0 %
Equity in (losses) of unconsolidated subsidiaries (1 ) (12 ) — % — % (11 ) (91.7 )%
NET INCOME $ 58,627
$ 45,332
4.7 % 4.4 % $ 13,295
29.3 %

Revenue

The primary ~~driver~~drivers of our increase in revenues relates to revenue from recent acquisitions, new contract awards and growth on certain existing ~~contracts and our recent acquisitions, which~~contracts. These increases were offset by contracts and tasks that ended and reduced scope of work on some contracts. Due to the uncertainties around the potential impact of the COVID-19 pandemic on timing of new contract awards, the hiring environment, and customer actions, we believe our revenues during the remainder of 2020 could vary and modestly fluctuate from the first half of the year.

Cost of services

The increase in cost of services was primarily due to increases in ~~revenue.~~revenue and the reclassification of certain allocated indirect expenses. As a percentage of revenue, direct labor costs ~~were~~was 49% ~~and 48%~~ for both the ~~six~~three months ended June 30, ~~2020~~2021 and ~~2019, respectively.~~2020. As a percentage of revenues, other direct costs, which include subcontractors and third party equipment and materials used in the performance of our contracts, were 36% and 37% for the ~~six~~three months ended June 30, 2021 and 2020, ~~compared to 38% for the same period in 2019. Due to the uncertainties of the impact of COVID-19 on our business, we believe our cost of services~~respectively. With COVID mitigation protocols being reduced or lifted, direct labor has been impacted as employees have begun utilizing paid time off at a ~~percentage of revenues may slightly increase depending primarily on levels of revenue changes.~~

normalized level.

General and administrative expenses

The ~~increase~~decrease in general and administrative expenses was primarily due to changes in the classification of certain indirect cost allocations of approximately $4 million, reduced bad debt expense and other indirect expenditures. These reductions were partially offset by increased expenditures ~~to support the growth of our business,~~for bid and proposal ~~spending~~ and ~~bad debt expense, offset by lower travel~~investments in new capabilities through research and ~~other indirect spending impacted by COVID-19~~

restrictions. We expect general and administrative expense as a percentage of revenue to increase slightly for the remainder of 2020 compared to the first half of the year due to a return to normal indirect spending.

development expenditures.

Interest expense

The decrease in interest expense was ~~due~~related to ~~repayment of~~lower average outstanding borrowings on our revolving credit facility. ~~Given currently liquidity needs, we expect interest expense to decrease during the remainder of 2020 compared to the same period in 2019.~~

Provision for income taxes

Our effective tax rate is affected by recurring items, such as the relative amount of income we earn in various taxing jurisdictions and their tax rates. It is also affected by discrete items that may occur in any given year, but are not consistent from year-to-year. Our effective income tax rate was 24% and ~~25%~~23% for the three months ended June 30, 2021 and 2020, respectively. For the three months ending June 30, 2021, the effective tax rate increased primarily due to the increase in the

market value of our deferred compensation plan during the second quarter of 2020.

Six Months Ended June 30, 2021 Compared to the Six Months Ended June 30, 2020


	Six months ended June 30,								Period-to-Period Change
	2021		2020		2021		2020		2020 to 2021
	Dollars				Percentage				Dollars		Percentage
	(dollars in thousands)
REVENUE	$	1,281,802	$	1,243,404	100.0	%	100.0	%	$	38,398	3.1	%
Cost of services	1,095,585		1,059,764		85.5	%	85.2	%	35,821		3.4	%
General and administrative expenses	95,134		105,156		7.4	%	8.5	%	(10,022)		(9.5)	%
OPERATING INCOME	91,083		78,484		7.1	%	6.3	%	12,599		16.1	%
Interest expense	(720)		(1,287)		0.1	%	0.1	%	(567)		(44.1)	%
Interest income	79		187		—	%	—	%	(108)		(57.8)	%
Other (expense), net	(133)		(22)		—	%	—	%	111		504.5	%
INCOME FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY METHOD INVESTMENTS	90,309		77,362		7.0	%	6.2	%	12,947		16.7	%
Provision for income taxes	(21,371)		(18,734)		1.6	%	1.5	%	2,637		14.1	%
Equity in (losses) of unconsolidated subsidiaries	(1)		(1)		—	%	—	%	—		—	%
NET INCOME	$	68,937	$	58,627	5.4	%	4.7	%	$	10,310	17.6	%

Revenue

The primary drivers of our increase in revenues relates to revenue from recent acquisitions, new contract awards and growth on certain existing contracts. These increases were offset by contracts and tasks that ended, reduced scope of work on some contracts and lower material purchases as compared to the same period in 2020. We expect revenues to increase in 2021 due to recent and future new contracts and growth on existing programs.

Cost of services

The increase in cost of services was primarily due to increases in revenue and the reclassification of certain allocated indirect expenses. As a percentage of revenue, direct labor costs were 51% and 49% for the six months ended June 30, 2021 and 2020, respectively. As a percentage of revenues, other direct costs, which include subcontractors and ~~2019, respectively. The~~third party equipment and materials used in the performance of our contracts, were 35% and 37% for the six months ended June 30, 2021 and 2020, ~~included~~respectively. The shift in our mix between direct labor and other direct costs was primarily due an increase in direct labor, which includes increased ~~level~~overhead due to cost allocation reclassifications, and lower material purchases on several contracts due to timing of ~~research~~customer requirements as well as reduced other direct costs. We expect cost of services as a percentage of revenue to increase in 2021 due to expectations of increasing material procurements.

General and ~~development credits over~~administrative expenses

The decrease in general and administrative expenses was primarily due to changes in the ~~same period in 2019 which~~classification of certain indirect cost allocations of approximately $8 million, reduced bad debt expense and other indirect expenditures. These reductions were partially offset by ~~negative performance~~increased bid and proposal spending and investments in new capabilities through research and development expenditures. For the remainder of ~~our deferred compensation plan assets~~2021, we expect general and administrative expenses to increase as a percentage of revenue.

Interest expense

The decrease in interest expense was due to lower average outstanding borrowings on our revolving credit facility.

Provision for income taxes

Our effective tax rate is affected by recurring items, such as the relative amount of income we earn in various taxing jurisdictions and their tax rates. It is also affected by discrete items that may occur in any given year, ~~to date declines in equity markets. We do~~but are not ~~currently~~consistent from year-to-year. Our effective income tax rate was 24% for both the six months ended June 30, 2021 and 2020. Under the current tax laws, we expect ~~any material changes to~~ our effective tax rate ~~for~~to slightly increase in 2021. The President has signaled the ~~remainder of 2020.~~administration's intent to increase the U.S. corporate income tax rate. An increase in the U.S. corporate rate could result in a significant increase in our income tax expense as we would be required to revalue our deferred tax liabilities.

Backlog

At both June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, our backlog was ~~$9.2 billion and $9.1 billion, respectively.~~$10.2 billion. Our funded backlog was $1.4 billion and ~~$1.3~~$1.2 billion as of June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, respectively. Backlog represents estimates that we calculate on a consistent basis. For additional information on how we compute backlog, see the disclosure under the caption "Backlog," contained in "Item 1 Business" of our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019.~~2020.

Liquidity and Capital Resources

Historically, our primary liquidity needs have been financing acquisitions, working capital, payments under our cash dividend program and capital expenditures. Our primary sources of liquidity are cash from operating activities and borrowings under our revolving credit facility.

On June 30, ~~2020,~~2021, our cash and cash equivalents balance was ~~$29.7~~$64.9 million. There ~~were~~was $30.0 million outstanding ~~borrowings of $20.0 million~~ under our revolving credit facility at June 30, ~~2020.~~2021. As of June 30, ~~2020,~~2021, we were contingently liable under letters of credit totaling ~~$6.3~~$2.1 million, which reduces our availability to borrow under our revolving credit facility. The maximum available borrowings under our revolving credit facility at June 30, ~~2020~~2021 were ~~$473.7~~$467.9 million.

Cash Flows From (Used In) Operating Activities

Our operating cash flow is primarily affected by our ability to invoice and collect from our customers in a timely manner, our management of vendor payments and the overall profitability of our contracts. We bill most of our customers monthly after services are rendered. Our accounts receivable days sales outstanding were 6364 and 6663 for the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, respectively. For the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, our net cash flow from operating activities was ~~$104.7~~$66.5 million and ~~$123.4~~$104.7 million, respectively. The decrease in net cash flows from operating activities over the comparative period was primarily due to the timing of collections from customers offset by vendor payments and deferrals in payment of certain payroll taxes during the six months ended June 30, 2020 when compared to the same period in 2019 was primarily due to an increase in accounts receivable (driven by our revenue growth and an increase in our days sales outstanding in the first half of the year), offset by the increases in accrued salaries and related expenses, other long-term liabilities (related to the deferral of employer payroll tax payments afforded to usas allowed under the CARES ~~Act) and increased net income as well as a decrease in tax receivable-current.~~Act.

Cash Flows From (Used In) Investing Activities

Our cash used in investing activities consists primarily of business combinations, purchases of property and equipment and investments in capital software. For the six months ended June 30, 2021 our net cash used in investing activities was $30.9 million, which was primarily due to the purchase of equipment to support managed IT service contracts. For the six months ended June 30, 2020 our net cash used in investing activities was $45.6 million, which was primarily due to the purchase of equipment to support managed IT service contracts ~~infrastructure investments~~ and capitalized software, offset by proceeds from corporate owned life insurance and sales of property and equipment. We expect the level of capital expenditures for the remainder of 2020 to be similar or slightly decrease compared to the first half of the year. For the six months ended June 30, 2019 our net cash used in investing activities was $140.8 million, which was primarily due to the acquisition of KGS and the purchase of equipment to support a managed IT service contract, infrastructure investments and capitalized software for internal use.insurance.

Cash Flows From (Used in) Financing Activities

For the six months ended June 30, 2021, our net cash used in financing activities was $12.0 million, which was primarily the result of our dividend payments, offset by net borrowings under our credit facility. For the six months ended June 30, 2020, our net cash used in financing activities was $38.3 million, which was primarily due to net repayments of our revolving credit facility and dividend payments, offset by proceeds from the exercise of stock options. ~~For the six months ended June 30, 2019, our net cash from financing activities was $18.0 million, which was primarily due to net borrowings under our credit facility.~~

Revolving Credit Facility

~~We maintain a~~On July 20, 2021, we amended and restated our credit agreement with a syndicate of lenders led by Bank of America, N.A., as sole administrative agent. The amended and restated credit agreement provides for a $500 million revolving credit facility, with a ~~$75~~$100 million letter of credit sublimit and a ~~$30~~$50 million swing line loan ~~sublimit.~~sublimit as well as a delayed-draw term loan of $600 million. Under the Term Facility, borrowings are available to be drawn prior to the first anniversary of the amended and restated credit facility in up to three separate drawings of not less than $50 million. The amended and restated credit agreement also includes an accordion feature that permits us to arrange with the lenders for the provision of additional commitments. The maturity date is ~~August 17, 2022.~~July 20, 2026.

Borrowings under our amended and restated credit agreement are collateralized by substantially all of our assets and our Material Subsidiaries (as defined in the ~~credit~~ agreement) and bear interest at one of the following variable rates as selected by us at the time of borrowing: a London Interbank Offer Rate base rate plus market spreads (1.25% to ~~2.25%~~2.00% based on our consolidated total leverage ratio) or Bank of America's ~~base~~prime rate plus market spreads (0.25% to ~~1.25%~~1.00% based on our consolidated ~~total~~net leverage ratio).

There ~~were $20.0~~was $30.0 million outstanding on our revolving credit facility at June 30, ~~2020.~~2021. As of and during the six months ended June 30, ~~2020,~~2021, we were in compliance with the financial covenants under the credit agreement.

Capital Resources

We believe the capital resources available to us from cash on hand, our remaining capacity under our revolving credit facility, and cash from our operations are adequate to fund our anticipated cash requirements for at least the next year. We anticipate financing our internal and external growth through cash from operating activities, borrowings under our revolving credit facility and issuance of equity.

Cash Management

To the extent possible, we invest our available cash in short-term, investment grade securities in accordance with our investment policy. Under our investment policy, we manage our investments in accordance with the priorities of maintaining the safety of our principal, maintaining the liquidity of our investments, maximizing the yield on our investments and investing our cash to the fullest extent possible. Our investment policy provides that no investment security can have a final maturity that exceeds six months and that the weighted average maturity of the portfolio cannot exceed 60 days. Cash and cash equivalents include cash on hand, amounts due from banks and short-term investments with maturity dates of three months or less at the date of purchase.

Dividend

During the six months ended June 30, ~~2020~~2021 and ~~2019,~~2020, we declared and paid a quarterly dividend in the amount of ~~$0.32~~$0.38 per share and ~~$0.27~~$0.32 per share, respectively, on both classes of our common stock. While we expect to continue the cash dividend program, any future dividends declared will be at the discretion of our Board of Directors and will depend, among other factors, upon our results of operations, financial condition and cash requirements, as well as such other factors that our Board of Directors deems relevant.

Off-Balance Sheet Arrangements

In the ordinary course of business, we use letters of credit issued to satisfy certain contractual terms with our customers. As of June 30, ~~2020, $6.3~~2021, $2.1 million in letters of credit were issued but undrawn. We have an outstanding performance bond in connection with a contract between ManTech MENA, LLC and Jadwalean International Operations and Management Company to fulfill technical support requirements for the Royal Saudi Air Force. This performance bond is guaranteed by a letter of credit in the amount of ~~$5.7~~$1.6 million.

Critical Accounting Estimates and Policies

Critical accounting policies are defined as those that are reflective of significant judgments and uncertainties, and potentially result in materially different results under different assumptions and conditions. Application of these policies is particularly important to the portrayal of our financial condition and results of operations. The discussion and analysis of our financial condition

and results of operations are based on our condensed consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (GAAP). The preparation of these condensed consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of

assets, liabilities, revenue and expenses. Actual results may differ from these estimates under different assumptions or conditions. Our significant accounting policies are ~~described in~~set forth under the caption "Critical Accounting Estimates and Policies" in Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019,~~2020, previously filed with the SEC. There have been no material changes to our critical accounting estimates and policies from those discussed in our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019.~~2020.

Recently Adopted Accounting Standards Updates

Accounting Standards Updates that became effective during the six months ended June 30, ~~2020~~2021 did not have a material impact on our condensed consolidated financial statements.

Recently Issued But Not Yet Adopted ASUs

ASUs effective after June 30, ~~2020~~2021 are not expected to have a material effect on our condensed consolidated financial statements.


~~Item 3.~~	~~Quantitative and Qualitative Disclosures about Market Risk~~

Item 3.Quantitative and Qualitative Disclosures about Market Risk

Our exposure to market risk relates to changes in interest rates for borrowing under our revolving credit facility. At June 30, ~~2020,~~2021, we had an$30.0 million outstanding ~~balance of $20.0 million~~ on our revolving credit facility. Borrowings under our revolving credit facility bear interest at variable rates. A hypothetical 10% increase in interest rates would have ~~a $0.2 million~~an immaterial effect on our interest expense for the six months ended June 30, ~~2020.~~2021.

We do not use derivative financial instruments for speculative or trading purposes. When we have excess cash, we invest in short-term, investment grade, interest-bearing securities. Our investments are made in accordance with an investment policy. Under this policy, no investment securities can have maturities exceeding six months and the weighted average maturity of the portfolio cannot exceed 60 days.


~~Item 4.~~	~~Controls and Procedures~~

Item 4.Controls and Procedures

Management is responsible for establishing and maintaining adequate disclosure controls and procedures and internal control over financial reporting. Disclosure controls and procedures are designed to provide reasonable assurance that information required to be disclosed in our reports filed or submitted under the Exchange Act, such as this Quarterly Report on Form 10-Q, is accurately recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures are also designed to provide reasonable assurance that such information is accumulated and communicated to our management, including our principal executive officer and our principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

It should be noted that a control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints and the benefits of controls must be considered relative to their costs. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. As a result, our disclosure controls and procedures are designed to provide reasonable assurance that such disclosure controls and procedures will meet their objectives.

As of June 30, ~~2020,~~2021, under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively), management evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15 of the Exchange Act. Based upon this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective at the reasonable assurance level described above.

There were no changes in our internal control over financial reporting during our last fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II – OTHER INFORMATION


~~Item 1.~~	~~Legal Proceedings~~

Item 1.Legal Proceedings

We are subject to certain legal proceedings, government audits, investigations, claims and disputes that arise in the ordinary course of our business. Like most large government defense contractors, our contract costs are audited and reviewed on a continual basis by an in-house staff of auditors from the Defense Contract Audit Agency. In addition to these routine audits, we are subject from time-to-time to audits and investigations by other agencies of the U.S. government. These audits and investigations are conducted to determine if our performance and administration of our government contracts are compliant with contractual requirements and applicable federal statutes and regulations. An audit or investigation may result in a finding that our performance, systems and administration are compliant or, alternatively, may result in the government initiating proceedings against us or our employees, including administrative proceedings seeking repayment of monies, suspension and/or debarment from doing business with the U.S. government or a particular agency or civil or criminal proceedings seeking penalties and/or fines. Audits and investigations conducted by the U.S. government frequently span several years.

Although we cannot predict the outcome of these and other legal proceedings, investigations, claims and disputes, based on the information now available to us, we do not believe the ultimate resolution of these matters, either individually or in the aggregate, will have a material adverse effect on our business, prospects, financial condition or operating results.


~~Item 6.~~	~~Exhibits~~

Item 6.Exhibits

Exhibits required by Item 601 of Regulation S-K:



Exhibit						Description of Exhibit
~~31.1‡~~10.1*						Third Amended and Restated Credit Agreement, by and among the Company and a syndicate of lenders, including Bank of America, N.A., acting as administrative agent for the lenders, dated as of July 20, 2021 (incorporated herein by reference from registrant's Current Report on Form 8-K, as filed with the SEC on July 20, 2021).
31.1‡						Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
31.2‡						Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.
32‡						Certification of Chief Executive Officer and Chief Financial Officer pursuant to Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended.
101.INS						Inline XBRL 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.SCH						Inline XBRL Taxonomy Extension Schema Document.
101.CAL						Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF						Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB						Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE						Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104						Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).
* Management contract or compensatory plan or arrangement required to be filed as an Exhibit to this report pursuant to Item 15(a)(3).
‡ Filed herewith.

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.


			MANTECH INTERNATIONAL CORPORATION

			~~MANTECH INTERNATIONAL CORPORATION~~
By:
	~~By:~~	/s/ KEVIN M. PHILLIPS
Date:		~~July 31, 2020~~August 4, 2021	Name:	Kevin M. Phillips
			Title:	~~President and~~Chairman, Chief Executive Officer and President



		By:	/s/ JUDITH L. BJORNAAS
Date:	~~July 31, 2020~~August 4, 2021	Name:	Judith L. Bjornaas
		Title:	Chief Financial Officer



	June 30, 2020			December 31, 2019
Billed receivables	$	357,092		$	311,061
Unbilled receivables	100,290			99,493
Allowance for doubtful accounts	(14,364		)	(11,578		)
Receivables—net	$	443,018		$	398,976



Cash and cash equivalents	$	29
Receivables	4,187
Prepaid expenses	188
Other current assets	5
Goodwill	25,089
Other intangible assets	11,900
Operating lease right of use assets	152
Property and equipment	56
Other assets	7
Accounts payable and accrued expenses	(1,956		)
Accrued salaries and related expenses	(1,023		)
Operating lease obligations—long term	(152		)
Net assets acquired and liabilities assumed	$	38,482



Cash and cash equivalents	$	154
Receivables	17,071
Prepaid expenses	368
Other current assets	168
Goodwill	80,374
Other intangible assets	34,839
Property and equipment	361
Accounts payable and accrued expenses	(6,895		)
Accrued salaries and related expenses	(4,421		)
Deferred income taxes	(7,087		)
Other long-term liabilities	(379		)
Net assets acquired and liabilities assumed	$	114,553



	Goodwill Balance
Goodwill at December 31, 2018	$	1,085,806
Acquisitions	105,453
Goodwill at December 31, 2019	1,191,259
Acquisition fair value adjustment	11
Goodwill at June 30, 2020	$	1,191,270



For the remaining six months ending December 31, 2020	$	12,865
For the year ending:
December 31, 2021	$	23,932
December 31, 2022	$	21,306
December 31, 2023	$	18,021
December 31, 2024	$	16,276
December 31, 2025	$	13,789



	Number of Units		Weighted Average Fair Value
Non-vested RSUs at December 31, 2018	137,596		$	45.11
Granted	145,440		$	59.43
Vested	(60,915	)	$	42.75
Forfeited	(11,294	)	$	51.88
Non-vested RSUs at December 31, 2019	210,827		$	55.31
Granted	187,450		$	68.29
Vested	(35,882	)	$	51.80
Forfeited	(43,970	)	$	63.59
Non-vested RSUs at June 30, 2020	318,425		$	62.21