Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES ☑☐ NO ☐☑

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). YES ☑ NO ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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 ☑

Shares of Proofpoint, Inc. common stock, $0.0001 par value per share, outstanding as of ~~October 18, 2019: 56,454,217~~July 17, 2020: 57,641,722 shares.

	September 30, 2019			December 31, 2018			June 30, 2020			December 31, 2019
Assets
Current assets:
Cash and cash equivalents	$	1,020,183		$	185,392		$	961,356		$	847,555
Short-term investments		31,327			46,307			11,988			43,385
Accounts receivable, net		204,769			199,194			173,086			265,741
Inventory		425			481			367			1,249
Deferred product costs		2,078			1,800			2,846			2,723
Deferred commissions		42,473			37,391			49,818			47,250
Prepaid expenses and other current assets		19,053			16,872			27,835			22,081
Total current assets		1,320,308			487,437			1,227,296			1,229,984
Property and equipment, net		70,285			70,627			84,863			73,512
Operating lease right-of-use assets		53,719			—			67,128			51,852
Long-term deferred product costs		349			303			382			581
Goodwill		543,143			460,425			688,461			687,517
Intangible assets, net		124,689			136,645			159,507			186,023
Long-term deferred commissions		79,488			69,989			93,687			90,305
Other assets		16,045			7,592			15,808			17,737
Total assets	$	2,208,026		$	1,233,018		$	2,337,132		$	2,337,511
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	17,819		$	20,237		$	5,451		$	16,311
Accrued liabilities		103,573			90,719			120,867			119,423
Deferred rent		—			829
Operating lease liabilities		20,529			—			23,755			20,202
Deferred revenue		542,429			490,296			593,451			615,874
Total current liabilities		684,350			602,081			743,524			771,810
Convertible senior notes		741,367			—			766,403			749,620
Long-term deferred rent		—			3,757
Long-term operating lease liabilities		36,835			—			46,290			36,223
Other long-term liabilities		18,571			6,812			35,187			19,172
Long-term deferred revenue		132,174			107,834			169,360			168,189
Total liabilities		1,613,297			720,484			1,760,764			1,745,014
Commitments and contingencies (Note 7)
Stockholders’ equity:
Convertible preferred stock, $0.0001 par value; 5,000 shares authorized; 0 shares issued and outstanding		—			—			—			—
Common stock, $0.0001 par value; 200,000 shares authorized; 56,204 and 55,149 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively		6			6
Common stock, $0.0001 par value; 200,000 shares authorized; 57,588 and 56,784 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively								6			6
Additional paid-in capital		1,291,580			1,107,953			1,398,786			1,318,084
Accumulated other comprehensive income (loss)		3			(7	)
Accumulated other comprehensive income								2			1
Accumulated deficit		(696,860	)		(595,418	)		(822,426	)		(725,594	)
Total stockholders’ equity		594,729			512,534			576,368			592,497
Total liabilities and stockholders’ equity	$	2,208,026		$	1,233,018		$	2,337,132		$	2,337,511

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018			2020			2019			2020			2019
Revenue:
Subscription	$	224,275		$	181,505		$	634,639		$	509,311		$	254,892		$	210,780		$	498,961		$	410,364
Hardware and services		3,110			2,674			10,122			9,204			3,546			3,659			9,251			7,012
Total revenue		227,385			184,179			644,761			518,515			258,438			214,439			508,212			417,376
Cost of revenue:⁽¹⁾⁽²⁾
Subscription		52,308			45,679			151,208			133,495			59,193			50,648			119,041			98,900
Hardware and services		7,573			5,258			21,744			15,271			8,382			7,180			17,465			14,171
Total cost of revenue		59,881			50,937			172,952			148,766			67,575			57,828			136,506			113,071
Gross profit		167,504			133,242			471,809			369,749			190,863			156,611			371,706			304,305
Operating expense:⁽¹⁾⁽²⁾
Research and development		60,060			45,917			168,494			137,176			70,602			55,185			140,497			108,434
Sales and marketing		105,502			90,006			305,343			252,814			116,279			102,837			239,441			199,841
General and administrative		26,388			23,877			80,094			60,431			14,812			27,881			44,367			53,706
Total operating expense		191,950			159,800			553,931			450,421			201,693			185,903			424,305			361,981
Operating loss		(24,446	)		(26,558	)		(82,122	)		(80,672	)		(10,830	)		(29,292	)		(52,599	)		(57,676	)
Interest expense		(3,698	)		(9,746	)		(3,698	)		(16,761	)		(9,013	)		—			(17,933	)		—
Other income, net		2,180			224			3,565			941
Other (expense) income, net														(1,092	)		659			3,529			1,385
Loss before income taxes		(25,964	)		(36,080	)		(82,255	)		(96,492	)		(20,935	)		(28,633	)		(67,003	)		(56,291	)
(Provision for) benefit from income taxes		(18,376	)		20			(19,276	)		13,978
Provision for income taxes														(1,660	)		(280	)		(29,829	)		(900	)
Net loss	$	(44,340	)	$	(36,060	)	$	(101,531	)	$	(82,514	)	$	(22,595	)	$	(28,913	)	$	(96,832	)	$	(57,191	)
Net loss per share, basic and diluted	$	(0.79	)	$	(0.69	)	$	(1.82	)	$	(1.61	)	$	(0.39	)	$	(0.52	)	$	(1.69	)	$	(1.03	)
Weighted average shares outstanding, basic and diluted		56,014			52,184			55,708			51,214			57,369			55,768			57,168			55,553

(1) Includes stock-based compensation expense as follows:
Cost of subscription revenue	$	4,519	$	3,503	$	12,663	$	10,402	$	5,235		$	4,269	$	10,777	$	8,144
Cost of hardware and services revenue	$	1,043	$	474	$	3,003	$	1,636	$	1,408		$	1,054	$	2,779	$	1,960
Research and development	$	13,735	$	9,678	$	37,756	$	29,699	$	16,431		$	12,522	$	32,036	$	24,021
Sales and marketing	$	16,515	$	13,191	$	46,068	$	37,075	$	17,047		$	15,799	$	35,566	$	29,553
General and administrative	$	9,871	$	11,250	$	32,864	$	24,153	$	(3,660	)	$	12,006	$	6,868	$	22,993

(2) Includes intangible amortization expense as follows:
Cost of subscription revenue	$	7,886	$	7,121	$	22,153	$	20,141	$	9,992	$	7,505	$	19,930	$	14,267
Research and development	$	—	$	15	$	—	$	45
Sales and marketing	$	3,632	$	3,982	$	10,803	$	10,379	$	3,947	$	3,634	$	8,460	$	7,171

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018			2020			2019			2020			2019
Net loss	$	(44,340	)	$	(36,060	)	$	(101,531	)	$	(82,514	)	$	(22,595	)	$	(28,913	)	$	(96,832	)	$	(57,191	)
Other comprehensive income, net of tax:
Unrealized gain (loss) on short-term investments, net		1			(1	)		10			7
Unrealized (loss) gain on short-term investments, net														(3	)		1			1			9
Comprehensive loss	$	(44,339	)	$	(36,061	)	$	(101,521	)	$	(82,507	)	$	(22,598	)	$	(28,912	)	$	(96,831	)	$	(57,182	)

Three months ended September 30, 2019

Common Stock

Additional
Paid-In

Accumulated
Other
Comprehensive

Accumulated

Total
Stockholders’

Shares

Amount

Capital

Income (Loss)

Deficit

Equity

Balances at June 30, 2019

56,043

$
6

$
1,177,800

$
2

$
(652,520
)

$
525,288

Net loss

—

—

—

—

(44,340
)

(44,340
)
Unrealized gain on short-term investments

—

—

—

1

—

1

Stock-based compensation expense

—

—

41,732

—

—

41,732

Common stock issued

218

827

—

—

827

Tax withholding upon vesting of restricted stock awards

(57
)

—

(6,931
)

—

—

(6,931
)
Embedded conversion feature on convertible senior notes (Note 8)

—

—

163,023

—

—

163,023

Purchase of capped calls (Note 8)

—

—

(84,871
)

—

—

(84,871
)
Balances at September 30, 2019

56,204

$
6

$
1,291,580

$
3

$
(696,860
)

$
594,729

Nine months ended September 30, 2019

Common Stock

Additional
Paid-In

Accumulated
Other
Comprehensive

Accumulated

Total
Stockholders’

Shares

Amount

Capital

Income (Loss)

Deficit

Equity

Balances at December 31, 2018

55,149

$
6

$
1,107,953

$
(7
)

$
(595,418
)

$
512,534

Cumulative effect of adjustment from adoption of ASC 842

—

—

—

—

89

89

Net loss

—

—

—

—

(101,531
)

(101,531
)
Unrealized gain on short-term investments

—

—

—

10

—

10

Stock-based compensation expense

—

—

118,674

—

—

118,674

Acquisition of Meta Networks, Ltd. (Note 3)

72

—

446

—

—

446

Common stock issued

1,348

—

28,170

—

—

28,170

Tax withholding upon vesting of restricted stock awards

(365
)

—

(41,815
)

—

—

(41,815
)
Embedded conversion feature on convertible senior notes (Note 8)

—

—

163,023

—

—

163,023

Purchase of capped calls (Note 8)

—

—

(84,871
)

—

—

(84,871
)
Balances at September 30, 2019

56,204

$
6

$
1,291,580

$
3

$
(696,860
)

$
594,729

	Three months ended June 30, 2020
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity
Balances at March 31, 2020		57,260		$	6	$	1,357,999		$	5		$	(799,831	)	$	558,179
Net loss		—			—		—			—			(22,595	)		(22,595	)
Unrealized loss on short-term investments		—			—		—			(3	)		—			(3	)
Stock-based compensation expense		—			—		32,435			—			—			32,435
Issuance of restricted shares		11			—		—			—			—			—
Common stock issued		381			—		15,576			—			—			15,576
Tax withholding upon vesting of restricted stock awards		(64	)		—		(7,224	)		—			—			(7,224	)
Balances at June 30, 2020		57,588		$	6	$	1,398,786		$	2		$	(822,426	)	$	576,368

	Three months ended September 30, 2018																	Three months ended June 30, 2019
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’			Common Stock					Additional Paid-In			Accumulated Other Comprehensive		Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity			Shares			Amount		Capital			Income (Loss)		Deficit			Equity
Balances at June 30, 2018		51,191		$	5	$	835,156		$	(1	)	$	(538,123	)	$	297,037
Net loss		—			—		—			—			(36,060	)		(36,060	)
Unrealized loss on short-term investments		—			—		—			(1	)		—			(1	)
Stock-based compensation expense		—			—		34,912			—			—			34,912
Common stock issued		436			—		2,897			—			—			2,897
Tax withholding upon vesting of restricted stock awards		(71	)		—		(8,243	)		—			—			(8,243	)
Conversion of convertible senior notes to common stock		2,928			—		213,306									213,306
Balances at September 30, 2018		54,484		$	5	$	1,078,028		$	(2	)	$	(574,183	)	$	503,848



	Nine months ended September 30, 2018
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity
Balances at December 31, 2017		50,325		$	5	$	787,572		$	(9	)	$	(488,453	)	$	299,115
Cumulative effect of adjustment from adoption of ASU 2016-16		—			—		—			—			(3,216	)		(3,216	)
Balances at March 31, 2019																			55,607		$	6	$	1,130,711		$	1	$	(623,607	)	$	507,111
Net loss		—			—		—			—			(82,514	)		(82,514	)		—			—		—			—		(28,913	)		(28,913	)
Unrealized gain on short-term investments		—			—		—			7			—			7			—			—		—			1		—			1
Stock-based compensation expense		—			—		94,930			—			—			94,930			—			—		42,207			—		—			42,207
Acquisition of Meta Networks, Ltd. (Note 3)																			72			—		446			—		—			446
Common stock issued		1,610			—		24,767			—			—			24,767			442			—		13,587			—		—			13,587
Tax withholding upon vesting of restricted stock awards		(379	)		—		(42,547	)		—			—			(42,547	)		(78	)		—		(9,151	)		—		—			(9,151	)
Conversion of convertible senior notes to common stock		2,928			—		213,306									213,306
Balances at September 30, 2018		54,484		$	5	$	1,078,028		$	(2	)	$	(574,183	)	$	503,848
Balances at June 30, 2019																			56,043		$	6	$	1,177,800		$	2	$	(652,520	)	$	525,288

	Six months ended June 30, 2019
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity
Balances at December 31, 2018		55,149		$	6	$	1,107,953		$	(7	)	$	(595,418	)	$	512,534
Cumulative effect of adjustment from adoption of ASC 842		—			—		—			—			89			89
Net loss		—			—		—			—			(57,191	)		(57,191	)
Unrealized gain on short-term investments		—			—		—			9			—			9
Stock-based compensation expense		—			—		76,942			—			—			76,942
Acquisition of Meta Networks, Ltd. (Note 3)		72			—		446			—			—			446
Common stock issued		1,130			—		27,343			—			—			27,343
Tax withholding upon vesting of restricted stock awards		(308	)		—		(34,884	)		—			—			(34,884	)
Balances at June 30, 2019		56,043		$	6	$	1,177,800		$	2		$	(652,520	)	$	525,288

	Nine Months Ended September 30,						Six Months Ended June 30,
	2019			2018			2020			2019
Cash flows from operating activities
Net loss	$	(101,531	)	$	(82,514	)	$	(96,832	)	$	(57,191	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization		58,457			54,315			46,460			38,237
Stock-based compensation		132,354			102,965			88,026			86,671
Change in fair value of contingent consideration		—			(79	)
Amortization of debt issuance costs and accretion of debt discount		3,455			8,383			16,783			—
Amortization of deferred commissions		36,434			26,121			30,003			23,671
Noncash lease costs		17,216			—			12,918			11,347
Loss on conversion of convertible notes		—			7,207
Deferred income taxes		(2,494	)		(15,269	)		(692	)		(610	)
Other		1,594			1,147			268			967
Changes in assets and liabilities:
Accounts receivable		(6,209	)		(26,501	)		92,062			27,860
Inventory		55			359			881			124
Deferred product costs		(324	)		(304	)		76			(95	)
Deferred commissions		(51,014	)		(41,218	)		(35,953	)		(30,978	)
Prepaid expenses		(5,496	)		(2,344	)		(6,773	)		(7,695	)
Other current assets		514			1,212			(180	)		459
Long-term assets		(876	)		248			(59	)		(623	)
Accounts payable		(2,607	)		2,655			(9,513	)		(3,166	)
Accrued liabilities		28,030			10,479			20,122			(10,371	)
Deferred rent		—			29
Operating lease liabilities		(17,925	)		—			(13,561	)		(11,448	)
Deferred revenue		76,474			82,799			(21,252	)		30,350
Net cash provided by operating activities		166,107			129,690			122,784			97,509
Cash flows from investing activities
Proceeds from maturities of short-term investments		81,902			51,237			51,187			55,049
Proceeds from sales of short-term investments		—			11,931
Purchase of short-term investments		(67,036	)		(47,457	)		(19,876	)		(41,768	)
Purchase of property and equipment		(23,856	)		(23,108	)		(24,149	)		(13,850	)
Receipt from escrow account		—			3,321
Acquisition of business, net of cash acquired		(104,503	)		(223,786	)
Net cash used in investing activities		(113,493	)		(227,862	)
Receipts from escrow account								154			—
Acquisition of businesses, net of cash acquired								(2,720	)		(104,503	)
Net cash provided by (used in) investing activities								4,596			(105,072	)
Cash flows from financing activities
Proceeds from issuance of common stock		15,518			15,898			18,543			14,691
Withholding taxes related to restricted stock net share settlement		(41,590	)		(41,967	)		(35,145	)		(35,005	)
Proceeds from issuance of convertible senior notes, net of costs		901,293			—
Purchase of capped calls		(84,640	)		—
Repayments of equipment loans and capital lease obligations		—			(29	)
Repayments of convertible notes		—			(142	)
Contingent consideration payment		—			(555	)
Net cash provided by (used in) financing activities		790,581			(26,795	)
Net cash used in financing activities								(16,602	)		(20,314	)
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(505	)		(352	)		(174	)		79
Net increase (decrease) in cash, cash equivalents and restricted cash		842,690			(125,319	)		110,604			(27,798	)
Cash, cash equivalents and restricted cash
Beginning of period		186,152			286,660			857,907			186,152
End of period	$	1,028,842		$	161,341		$	968,511		$	158,354

							Six Months Ended June 30,
							2020			2019
Supplemental disclosure of noncash investing and financing activities
Unpaid purchases of property and equipment and asset retirement obligations							$	6,267		$	5,681
Operating lease right-of-use assets exchanged for lease obligations							$	28,195		$	3,979
Liability awards converted to equity							$	13,313		$	12,651

	September 30, 2019		September 30, 2018		June 30, 2020		June 30, 2019
Reconciliation of cash, cash equivalents and restricted cash as shown in the consolidated statement of cash flows
Cash and cash equivalents	$	1,020,183	$	160,561	$	961,356	$	149,697
Restricted cash included in prepaid expenses and other current assets		2,929		289		3,229		3,414
Restricted cash included in other non-current assets		5,730		491		3,926		5,243
Total cash, cash equivalents and restricted cash	$	1,028,842	$	161,341	$	968,511	$	158,354

Proofpoint, Inc. (“Proofpoint”, “we”, “us”, “our” or the “Company”) was incorporated in Delaware in June 2002 and is headquartered in California.

Proofpoint is a leading security-as-a-service provider that enables large and mid-sized organizations worldwide to defend, protect, archive and govern their most sensitive data. The Company’s security-and compliance platform is comprised of an integrated suite of threat protection, information protection, and brand protection solutions, including email protection, advanced threat protection, email authentication, data loss prevention, SaaS application protection, response orchestration and automation, digital risk, web browser isolation, email encryption, archiving, eDiscovery, supervision, secure communication, phishing simulation and security awareness computer-based training.

Management has determined that in the Company’s consolidated financial statements for the year ended December 31, 2018, short-term deferred revenue was overstated by $2,446, or 0.5%, in its consolidated balance sheet as of December 31, 2018. The Company has revised the December 31, 2018 consolidated balance sheet to correct the classification from short-term deferred revenue to long-term deferred revenue. The correction had no impact on the results of operations or cash flows of the Company.

These condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

These condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”), pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and note disclosures have been condensed or omitted pursuant to such rules and regulations. The accompanying Condensed Consolidated Balance Sheet as of December 31, ~~2018~~2019 is derived from audited financial statements as of that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for a fair statement of the periods presented. The results of operations for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 are not necessarily indicative of the results to be expected for the year ending December 31, ~~2019~~2020 or for other interim periods or for future years.

These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes for the year ended December 31, ~~2018~~2019 included in the Company’s Annual Report on Form 10-K filed with the SEC. The Company’s significant accounting policies are described in Note 1 to those audited consolidated financial statements.

Certain reclassifications have been made to prior year balances in order to conform to the current period presentation. “Interest income” has been reclassified from “Interest income (expense)” to “Other income (expense), net” in the condensed consolidated statements of operations. The reclassifications had no impact on previously reported net loss or accumulated deficit.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the

date of the financial statements, and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates and such difference may be material to the financial statements.

Due to the Coronavirus (“COVID-19”) pandemic, there has been uncertainty and disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of June 30, 2020. These estimates may change, as new events occur and additional information is obtained, as well as other factors related to COVID-19 that could result in material impacts to our consolidated financial statements in future reporting periods.

Goodwill represents the excess of the purchase price of the acquired enterprise over the fair value of identifiable assets acquired and liabilities assumed. The Company performs an annual goodwill impairment test during the fourth quarter of a calendar year and more frequently if an event or circumstances indicates that impairment may have occurred. For the purposes of impairment testing, the Company has determined that it has 1 operating segment and 1 reporting unit. ~~The~~To test goodwill for impairment, the Company ~~performs a two-step impairment test of goodwill whereby the fair value of~~compares the reporting ~~unit is compared to~~unit’s carrying value with its ~~carrying~~fair value. If the ~~fair~~carrying value of the reporting unit exceeds the carrying value of the net assets assigned to that unit, goodwill is not considered impaired and further testing is not required. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the impairment test in order to determine the implied fair value of the reporting unit’s ~~goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied~~ fair value, then the impairment ~~loss~~charge equal to the difference is ~~recorded.~~recorded; however, the loss recognized would not exceed the total amount of goodwill allocated to the reporting unit. The identification and measurement of goodwill impairment involves the estimation of the fair value of the Company. The estimate of fair value of the Company, based on the best information available as of the date of the assessment, is subjective and requires judgment, including management assumptions about expected future revenue forecasts and discount rates, changes in the overall economy, trends in the stock price and other factors. NaN impairment indicators were identified by the Company as of ~~September~~June 30, ~~2019.~~2020.

Intangible assets consist of developed technology, customer relationships, ~~non-compete arrangements,~~ trademarks and patents, and order backlog. The values assigned to intangibles are based on estimates and judgments regarding expectations for success and life cycle of solutions and technologies acquired.

Intangible assets are amortized on a straight-line basis over their estimated lives, which approximate the pattern in which the economic benefits of the intangible assets are consumed, as follows (in years):

	Low		High		Low		High
Patents		4		5		4		5
Developed technology		3		7		2		7
Customer relationships		2		8		2		8
Order backlog		1		3		1		3
Trade names and trademarks		1		5		1		5

Comprehensive loss includes all changes in equity that are not the result of transactions with stockholders. The Company’s comprehensive loss consists of its net loss and changes in unrealized gains (losses) from its available-for-sale investments. The Company had no material reclassifications out of accumulated other comprehensive loss into net loss for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018.~~2019.

In ~~February 2016,~~ August 2018, the Financial Accounting Standards Board ~~(FASB) issued Accounting Standards Update (“ASU”~~("FASB") ~~No. 2016-02,~~ ~~Leases (Topic 842)~~ (“ASU 2016-02” or “ASC 842”), which requires lessees to record most leases on their balance sheets but recognize the expenses in their statements of operations in a manner similar to current practice. ASU 2016-02 states that a lessee needs to recognize a lease liability for the obligation to make lease payments and a right-to-use(“ROU”) asset for the right to use the underlying asset for the lease term.

~~The Company adopted ASU 2016-02 in the first quarter of 2019, utilizing~~ ~~the modified retrospective transition approach through a cumulative-effect adjustment to the opening accumulated deficit balance as of January 1, 2019.~~

~~Refer to Note 6 “Leases” for more information~~ ~~regarding the impact of the adoption of ASU 2016-02 on the Company’s financial statements.~~

~~In August 2018, the FASB~~ issued ASU No. 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a

hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software.

The ~~update to the standard is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. Entities can choose to adopt the~~Company adopted ASU 2018-15 ~~prospectively or retrospectively.~~on January 1, 2020 prospectively. The ~~Company is currently assessing the impact~~adoption of ASU 2018-15 ~~will~~did not have a material impact on ~~its~~the Company’s condensed consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 removes the requirement to perform a hypothetical purchase price allocation to measure goodwill impairment. A goodwill impairment charge ~~will be~~is the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.

The ~~update to the standard is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted, and should be applied~~Company adopted ASU 2017-04 on January 1, 2020 prospectively. The ~~Company does~~adoption of ASU 2017-14 did not ~~expect ASU 2017-04 to~~ have ~~a material~~an impact on ~~its~~the Company’s condensed consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments(“ (“ASU 2016-13”). ASU 2016-13 changes the impairment model for most financial assets, and requires the use of an expected loss model in place of the currently used incurred loss method. Under this model, entities ~~will be~~are required to estimate the lifetime expected credit loss on such instruments and record an allowance to offset the

amortized cost basis of the financial asset, resulting in a net presentation of the amount expected to be collected on the financial asset.

The ~~update~~Company adopted ASU 2016-13 on January 1, 2020, utilizing the modified retrospective approach. The adoption of ASU 2016-13 did not have a material impact on its condensed consolidated financial statements as credit losses are not expected to be significant based on historical collection trends, the financial condition of partners and customers, and external market factors.

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”). ASU 2019-12 removes certain exceptions related to the ~~standard~~approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also amends other aspects of the guidance to help simplify and promote consistent application of GAAP. The guidance is effective for interim and annual periods beginning after December 15, ~~2019.~~2020, with early adoption permitted. The Company is currently ~~evaluating~~assessing the impact ofthat the adoption of ASU ~~2016-13~~2019-12 will have on its consolidated financial statements.

The core principle of ASC 606 is to recognize revenue to depict the transfer of services or products to customers in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services or products. The Company applies significant judgment in identifying and evaluating any terms and conditions in contracts which may impact revenue recognition. The principle is achieved through the following five-step approach:

The Company generates sales directly through its sales team and, to a growing extent, through its channel partners. Sales to channel partners are made at a discount and revenues are recorded at this discounted price once all revenue recognition criteria are met. Channel partners generally receive an order from an end-customer prior to placing an order with the Company, and these partners do not carry any inventory of the Company’s products or solutions. Payment from channel partners is not contingent on the partner’s success in sales to end-customers. In the event that the Company offers rebates, joint marketing funds, or other incentive programs to a partner, recorded revenues are reduced by these amounts accordingly.

The Company derives its revenue primarily from: (1) subscription service revenue; (2) subscription software revenue, and (3) hardware and services, which include professional service and training revenue provided to customers related to their use of the platform.

	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018		2020		2019		2020		2019
Subscription service revenue	$	217,698	$	174,082	$	619,174	$	492,068	$	244,137	$	207,074	$	480,858	$	401,476
Subscription software revenue		6,577		7,423		15,465		17,243		10,755		3,706		18,103		8,888
Hardware and services		3,110		2,674		10,122		9,204		3,546		3,659		9,251		7,012
Total revenue	$	227,385	$	184,179	$	644,761	$	518,515	$	258,438	$	214,439	$	508,212	$	417,376

Subscription service revenue is derived from a subscription-based enterprise licensing model with contract terms typically ranging from one to three years, and consists of (1) subscription fees from the licensing of the Company’s security-as-a-service platform and it’s various components, (2) subscription fees for software with support and related future updates where the software updates are critical to the customers’ ability to derive benefit from the software due to the fast changing nature of the technology. These function together as one performance obligation, and (3) subscription fees for the right to access the Company’s customer support services for software with significant standalone functionality and support services for hardware. The hosted on-demand service arrangements do not provide customers with the right to take possession of the software supporting the hosted services. Support revenue is derived from ongoing security updates, upgrades, bug fixes, and maintenance. A time-elapsed method is used to measure progress because the Company transfers control evenly over the contractual period. Accordingly, the fixed consideration related to subscription service revenue is generally recognized on a straight-line basis over the contract term beginning on the date access is provided, as long as other revenue recognition criteria have been met. Most of the Company’s contracts are non-cancelable over the contract term. Customers typically have the right to terminate their contract for cause if the Company fails to perform in accordance with the contractual terms. Some of the Company’s customers have the option to purchase additional subscription services at a stated price. These options are evaluated on a case-by-case basis but generally do not provide a material right as they are priced at or above the Company’s SSP and, as such, would not result in a separate performance obligation.

Subscription software revenue is primarily derived from term-based software that is deployed on the customers’ own servers and has significant standalone functionality, is recognized upon transfer of control to the customer. The control for subscription software is transferred at the later of delivery to the customer or the software license start date.

Hardware revenue consists of amounts derived from the sale of the Company’s on-premise hardware appliance, which is recognized upon passage of control, which occurs upon shipment of the product. Professional services revenue consists of fees associated with consulting, implementation and training services for assisting customers in implementing and expanding the use of the Company’s services and products. These services are distinct from subscription, subscription

software licenses and hardware. Professional services do not result in significant customization of the Company’s services and products. The Company recognizes revenue related to the professional services as they are performed.

Most of the Company’s contracts with customers contain multiple performance obligations that are distinct and accounted for separately. The transaction price allocated to subscription services and subscription software that does not have significant standalone functionality is determined by considering factors such as historical pricing practices, and the selling price of hardware and professional services is estimated using a cost plus model. The selling price for support of a functional subscription software license is calculated as a percentage of functional subscription software license value which is derived by analyzing internal pricing practice, customer expectations, and industry practice.

Revenue from sales is recorded at the net sales price, which is the transaction price, and includes estimates of variable consideration. The amount of variable consideration that is included in the transaction price is constrained, and is included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue will not occur when the uncertainty is resolved. If the Company’s services or products do not meet certain service level commitments, the Company’s customers are entitled to receive service credits representing a form of variable consideration. The Company has not historically experienced any significant incidents affecting the defined levels of reliability and performance as required by the Company’s subscription contracts. Accordingly, any estimated refunds related to these contracts in the condensed consolidated financial statements are not material during the periods presented.

Unbilled accounts receivable represents amounts for which the Company has recognized revenue, pursuant to its revenue recognition policy, for software licenses already delivered and professional services already performed, but billed in arrears and for which the Company believes it has an unconditional right to payment. The unbilled accounts receivable balance, included in accounts receivable in the condensed consolidated balance sheet, was $~~4,060~~2,389 and ~~$1,276~~$3,261 as of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018,~~2019, respectively.

The Company capitalizes sales commissions and associated payroll taxes paid to internal sales personnel, and referral fees paid to independent third-parties, that are incremental to the acquisition of customer contracts. These costs are recorded as deferred commissions on the condensed consolidated balance sheets. The Company determines whether costs should be deferred based on its sales compensation plans, if the commissions are incremental and would not have occurred absent the customer contract. Sales commissions for renewal of a subscription contract are not considered commensurate with the commissions paid for the acquisition of the initial subscription contract given the substantive difference in commission rate between new and renewal contracts. Commissions paid upon the initial acquisition of a contract are amortized over an estimated period of benefit of five years while commissions paid related to renewal contracts are amortized over a contractual renewal period. Amortization is recognized based on the expected future revenue streams under the customer contracts. Amortization of deferred sales commissions is included in sales and marketing expense in the accompanying condensed consolidated statements of operations. The Company determines the period of benefit for commissions paid for the acquisition of the initial subscription contract by taking into consideration its initial estimated customer life and the technological life of the Company’s software and related significant features. The Company classifies deferred commissions as current or long-term based on the timing of when the Company expects to recognize the expense. The Company periodically reviews these deferred commission costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit of these deferred contract acquisition costs. There were no material impairment losses recorded during the periods presented.

For the three months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, the Company capitalized ~~$20,036~~$20,783 and ~~$19,289~~$18,063 of commission costs, respectively, and amortized ~~$12,763~~$15,370 and ~~$9,413,~~$12,400, respectively. For the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, the Company capitalized ~~$51,014~~$35,953 and ~~$41,218~~$30,978 of commission costs, respectively, and amortized ~~$36,434~~$30,003 and ~~$26,121,~~$23,671, respectively.

Deferred product costs are the incremental costs to fulfill a contract that are directly associated with each non-cancellable customer contract and primarily consist of royalty payments made to third parties, from whom the Company has obtained licenses to integrate certain software into its products. The deferred product costs are recognized based on the

contractual term, and included in cost of revenue in the accompanying condensed consolidated statements of operations. The Company classifies deferred product costs as current or long-term based on the timing of when the Company expects to recognize the expense.

For the three months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, the Company capitalized ~~$1,033~~$901 and ~~$691~~$889 of deferred product costs, respectively, and amortized ~~$804~~$1,035 and ~~$641,~~$694, respectively. For the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, the Company capitalized ~~$2,609~~$2,077 and ~~$2,127~~$1,576 of deferred product costs, respectively, and amortized ~~$2,285~~$2,154 and ~~$1,824,~~$1,481, respectively.

The Company records deferred revenue when cash payments are received, or invoices are issued in advance of the Company’s performance, and generally recognizes revenue over the contractual term. The Company recognized ~~$199,411~~$222,562 and ~~$156,741~~$187,447 of revenue during the three months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, that was included in the deferred revenue balances at the beginning of the respective periods. The Company recognized ~~$437,519~~$394,857 and ~~$314,849~~$328,985 of revenue during the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, that was included in the deferred revenue balances at the beginning of the respective periods.

The Company recognized ~~$841~~$1,456 and ~~$2,039~~$1,639 of revenue during the three months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, related to the performance obligations satisfied in prior periods. The Company recognized ~~$1,890~~$1,442 and ~~$2,869~~$1,811 of revenue during the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, related to the performance obligations satisfied in prior periods.

Contracted revenue as of ~~September~~June 30, ~~2019~~2020 that has not yet been recognized (“contracted not recognized”) was ~~$597,579,~~$686,609, which includes deferred revenue and non-cancellable amounts that will be invoiced and recognized as revenue in future periods and excludes contracts with an original expected length of one year or less. The Company expects ~~59%~~58% of contracted and not recognized revenue to be recognized over the next twelve months, ~~38%~~39% in years two and three, with the remaining balance recognized thereafter.

Acquisitions are accounted for under the purchase method of accounting in which the tangible and identifiable intangible assets and liabilities of each acquired company are recorded at their respective fair values as of each acquisition date, including an amount for goodwill representing the difference between the respective acquisition consideration and fair values of identifiable net assets. The Company believes that for the acquisitions described below, the combined entities will achieve savings in corporate overhead costs and opportunities for growth through expanded geographic and customer segment diversity with the ability to leverage additional products and capabilities. These factors, among others, contributed to a purchase ~~price~~prices in excess of the estimated fair ~~value~~values of the acquired companies’ net identifiable assets acquired and, as a result, goodwill was recorded in connection with the acquisitions. Goodwill related to the ~~acquisition~~acquisitions of The Defence Works Limited, ObserveIT, Ltd. and Meta Networks, Ltd. is ~~deductible for tax purposes, and goodwill related to the acquisition of Wombat Security Technologies, Inc. is not~~ deductible for tax purposes.

While the Company uses its best estimates and assumptions as part of the purchase price allocation process to value assets acquired and liabilities assumed at the acquisition date, these estimates and assumptions are subject to refinement. When additional information becomes available, such as finalization of negotiations of working capital adjustments and tax related matters, the Company may revise its preliminary purchase price allocation. As a result, during the preliminary purchase price allocation period, which may be up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Subsequent to the purchase price allocation period, adjustments to assets acquired or liabilities assumed are recognized in the operating results.

On May 5, 2020, the Company completed its acquisition of The Defence Works Limited. The acquisition brings a library of interactive content to the Company’s security awareness training portfolio and provides the Company’s customers innovative content to support their security education programs. The total consideration was $2,767, of which $766 was allocated to goodwill and $2,400 was allocated to intangible assets. The acquired intangible assets consist of content library which is included within the developed technology assets in Note 4 “Goodwill and Intangible Assets.” The impact of the acquisition was not material to the Company’s condensed consolidated financial statements for the three and six months ended June 30, 2020.

On November 25, 2019 (the “ObserveIT Acquisition Date”), pursuant to the terms of the share purchase agreement, the Company acquired all shares of ObserveIT, Ltd. (“ObserveIT”). ObserveIT provides detection and prevention from insider threats solutions including data loss detection and response, user activity monitoring, incident response and compliance.

By combining ObserveIT’s endpoint agent technology and data risk analytics with the Company’s information classification, threat detection and intelligence, the Company has an insight into user activity with their sensitive data, wherever it resides, and the ability to immediately remediate risk.

These factors, among others, contributed to a purchase price in excess of the estimated fair value of acquired net identifiable assets and, as a result, goodwill was recorded in connection with the acquisition. The results of operations and the fair values of the acquired assets and liabilities assumed have been included in the accompanying consolidated financial statements since the ObserveIT Acquisition Date.

At the ObserveIT Acquisition Date, the consideration transferred was $213,747, net of cash acquired of $4,752. Of the consideration transferred, $3,250 was held in escrow to secure indemnification obligations.

Per the terms of the share purchase agreement, unvested stock options held by ObserveIT employees were canceled and exchanged for the Company’s unvested stock options. The fair value of $446 of these unvested awards was attributed to pre-combination services and was included in consideration transferred. The fair value of $5,427 was allocated to post-combination services. The unvested awards are subject to the recipient’s continued service with the Company and $5,427 is recognized ratably as stock-based compensation expense over the required remaining service period.

Also, as part of the share purchase agreement, the unvested restricted shares of a certain employee of ObserveIT were exchanged into the right to receive $532 of deferred cash consideration. The deferred cash consideration is presented as restricted cash on the Company’s consolidated balance sheets as of June 30, 2020 and December 31, 2019. The deferred cash consideration of $485 was allocated to post-combination expense and was not included in the purchase price. The deferred cash consideration is subject to forfeiture if employment terminates prior to the lapse of the restrictions, and the fair value is expensed as compensation expense over the three-year vesting period.

The Discounted Cash Flow Method was used to value the acquired developed technology, in-process research and development asset, customer relationships and order backlog. The Relief from Royalty Method was used to value the acquired trade name. Management applied significant judgment in estimating the fair values of these intangible assets, which involved the use of significant assumptions with respect to forecasted revenue, forecasted operating results and discount rates.

The following table summarizes the fair values of tangible assets acquired, liabilities assumed, intangible assets and goodwill:

*Purchased in-process research and development was accounted for as an indefinite-lived intangible asset until the underlying project was completed.

On May 15, 2019 (the “Meta Networks Acquisition Date”), pursuant to the terms of the share purchase agreement, the Company acquired all shares of Meta Networks, Ltd. (“Meta Networks”), an innovator in zero trust network access.

By combining Meta Networks’ innovative zero trust network access technology with the Company’s people-centric security capabilities the Company expects to make it far simpler for enterprises to precisely control employee and contractor access to on-premises, cloud, and consumer applications.

These factors, among others, contributed to a purchase price in excess of the estimated fair value of acquired net identifiable assets and, as a result, goodwill was recorded in connection with the acquisition. The Company has estimated fair values of acquired tangible assets, intangible assets and liabilities at the Meta Networks Acquisition Date. The amounts reported are considered provisional as the Company is completing the valuation work to determine the fair value of certain assets and liabilities acquired, largely with respect to working capital adjustments. The results of operations and the ~~provisional~~ fair values of the acquired assets and liabilities assumed have been included in the accompanying condensed consolidated financial statements since the Meta Networks Acquisition Date.

At the Meta Networks Acquisition Date, the consideration transferred was ~~$104,895,~~$104,664, net of cash acquired of $104. Of the consideration transferred, $12,500 was held in escrow to secure indemnification obligations, which has not been released as of the issuance of the condensed consolidated financial statements. The Company incurred $909 in acquisition-related costs which were recorded within operating expenses for the nine months ended September 30, 2019. The revenue from Meta Networks was not material for the nine months ended September 30, 2019, and due to the continued integration of the combined businesses, it was impractical to determine the earnings.obligations.

Per the terms of the share purchase agreement, unvested stock options and unvested restricted stock units held by Meta Networks employees were canceled and exchanged for the Company’s unvested stock options and unvested restricted stock units, respectively. The fair value of ~~$185~~$184 of these unvested awards was attributed to pre-combination services and was included in consideration transferred. The fair value of $12,918 was allocated to post-combination services. The unvested awards are subject to the recipient’s continued service with the Company, and $12,918 will be recognized ratably as stock-based compensation expense over the required remaining service period.

Also, as part of the share purchase agreement, the unvested restricted shares of certain employees of Meta Networks were exchanged into the right to receive $7,827 (“of deferred cash ~~consideration”)~~consideration and 72 shares of the Company’s common stock that were deferred with the fair value of $8,599. The unpaid deferred cash consideration was presented as restricted cash on the Company’s condensed consolidated balance ~~sheet~~sheets as of ~~September~~June 30, 2020 and December 31, 2019. ~~$7,596 of~~The deferred cash consideration of $7,596 and ~~$8,338 of~~the deferred stock of $8,338 (see Note 9 “Equity Award Plans”) were allocated to post-combination expense and were not included in the purchase price. The deferred cash consideration and deferred shares are subject to forfeiture if employment terminates prior to the lapse of the restrictions, and their fair value is expensed as compensation and stock-based compensation expense over the three-year vesting period.

The Cost to Recreate Method was used to value the acquired developed technology asset. Management applied judgment in estimating the fair value of this intangible asset, which involved the use of significant assumptions such as the cost and time to build the acquired technology, developer’s profit and rate of return.

The following table summarizes the fair values of tangible assets acquired, liabilities assumed, intangible assets and goodwill:

	Estimated Fair Value			Estimated Useful Life (in years)	Fair Value			Estimated Useful Life (in years)
Current assets	$	356		N/A	$	356		N/A
Fixed assets		68		N/A		68		N/A
Core/developed technology		21,000		3		21,000		3
Deferred tax liability, net		(1,854	)	N/A		(1,854	)	N/A
Other liabilities		(440	)	N/A		(671	)	N/A
Goodwill		85,869		Indefinite		85,869		Indefinite
	$	104,999			$	104,768

On February 28, 2018 (the “Wombat Acquisition Date”), pursuant to the terms of the merger agreement, the Company acquired all shares of Wombat Security Technologies, Inc. (“Wombat”), a leader for phishing simulation and security awareness computer-based training. By collecting data from Wombat’s PhishAlarm solution, the Company has access to data on phishing campaigns as seen by non-Company customers, providing broader visibility and insight to the Proofpoint Nexus platform.

With this acquisition, the Company’s customers can leverage the industry’s first solution combining the Company’s advanced threat protection with Wombat’s phishing simulation and computer-based security awareness training. With the combined solutions, the Company’s customers can:

The Company also expects to achieve savings in corporate overhead costs for the combined entities. These factors, among others, contributed to a purchase price in excess of the estimated fair value of acquired net identifiable assets and, as a result, goodwill was recorded in connection with the acquisition.

~~At the Wombat Acquisition Date, the consideration transferred was $222,215, net of cash acquired of $13,452.~~

Per the terms of the merger agreement, unvested in-the-money stock options held by Wombat employees were canceled and paid off using the same amount per option as for the common share less applicable exercise price for each option. The fair value of $1,580 of these unvested options was attributed to pre-combination service and included in consideration transferred. The fair value of unvested options of $1,571 was allocated to post-combination services and expensed in the three months ended March 31, 2018. Also, as part of the merger agreement, 51 shares of the Company’s common stock were deferred for certain key employees with the total fair value of $5,458 (see Note 9 “Equity Award Plans”), which was not included in the purchase price. The deferred shares are subject to forfeiture if employment terminates prior to the lapse of the restrictions, and their fair value is expensed as stock-based compensation expense over the vesting period.

~~The following table summarizes the fair values of tangible assets acquired, liabilities assumed, intangible assets and goodwill:~~

The following unaudited pro forma financial information presents the combined results of operations for the three and nine months ended September 30, 2019 and 2018 as though the Meta Networks and Wombat acquisitions that occurred during the reporting periods had occurred as of the beginning of the comparable prior reporting periods, with adjustments to give effect to pro forma events that are directly attributable to the acquisition such as amortization expense of acquired intangible assets, stock-based compensation directly attributable to the acquisitions and acquisition-related transaction costs. Accordingly, these unaudited pro forma results are presented for informational purposes only and are not necessarily indicative of what the actual results of operations of the combined company would have been if the acquisition had occurred at the beginning of the period presented, nor are they indicative of future results of operations:


Beginning balance as of December 31, 2018	$	460,425
Beginning balance as of December 31, 2019				$	687,517
Acquisition during period		85,869			766
Purchase accounting adjustments		(3,151	)		178
Closing balance as of September 30, 2019	$	543,143
Closing balance as of June 30, 2020				$	688,461

	September 30, 2019							December 31, 2018							June 30, 2020							December 31, 2019
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed technology	$	175,069	$	(101,677	)	$	73,392	$	154,069	$	(79,525	)	$	74,544	$	233,469	$	(130,214	)	$	103,255	$	210,469	$	(110,284	)	$	100,185
Customer relationships		71,400		(22,769	)		48,631		71,400		(15,166	)		56,234		87,200		(32,252	)		54,948		87,200		(25,608	)		61,592
Trade names and patents		3,330		(2,080	)		1,250		3,330		(1,430	)		1,900		3,730		(2,950	)		780		3,730		(2,349	)		1,381
Order backlog		6,800		(5,384	)		1,416		6,800		(2,833	)		3,967		8,100		(7,576	)		524		8,100		(6,360	)		1,740
In-process research and development																—		—			—		21,125		—			21,125
	$	256,599	$	(131,910	)	$	124,689	$	235,599	$	(98,954	)	$	136,645	$	332,499	$	(172,992	)	$	159,507	$	330,624	$	(144,601	)	$	186,023

In-process research and development asset was transferred to developed technology in the three months ended June 30, 2020, as the associated project was completed.

Amortization of intangible assets expense was ~~$11,518~~$13,939 and ~~$11,118~~$11,139 for the three months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, and ~~$32,956~~$28,390 and ~~$30,565~~$21,438 for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively.

Future estimated amortization of intangible assets expense as of ~~September~~June 30, ~~2019~~2020 are presented below:

Year ending December 31,
2019, remainder	$	11,378
2020		41,966
2020, remainder			$	29,115
2021		38,098		54,322
2022		16,017		32,060
2023		7,312		22,495
2024				13,807
Thereafter		9,918		7,708
	$	124,689	$	159,507

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date. A hierarchy for inputs used in measuring fair value has been defined to minimize the use of unobservable inputs by requiring the use of observable market data when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on active market data. Unobservable inputs are inputs that reflect the Company’s assumptions about the assumptions market participants would use in pricing the asset or liability based on the best information available in the circumstances.

The following tables summarize, for each category of assets or liabilities carried at fair value, the respective fair value as of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018~~2019 and the classification by level of input within the fair value hierarchy:

	September 30, 2019								June 30, 2020
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market funds	$	982,180	$	982,180	$	—	$	—	$	921,061	$	921,061	$	—	$	—
Commercial paper		7,987		—		7,987		—
Short-term investments:
Commercial paper		21,887		—		21,887		—		9,988		—		9,988		—
Corporate debt securities		7,451		—		7,451		—
U.S. Treasury securities		1,989		—		1,989		—		2,000		—		2,000		—
Total financial assets	$	1,021,494	$	982,180	$	39,314	$	—	$	933,049	$	921,061	$	11,988	$	—

	December 31, 2018								December 31, 2019
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets
Cash equivalents:
Money market funds	$	133,202	$	133,202	$	—	$	—	$	815,158	$	815,158	$	—	$	—
Commercial paper		12,478		—		12,478		—		9,989		—		9,989		—
Short-term investments:
Corporate debt securities		13,470		—		13,470		—		13,454		—		13,454		—
Commercial paper		30,838		—		30,838		—		27,932		—		27,932		—
U.S. Treasury securities		1,999		—		1,999		—		1,999		—		1,999		—
Total financial assets	$	191,987	$	133,202	$	58,785	$	—	$	868,532	$	815,158	$	53,374	$	—

Based on quoted market prices as of ~~September~~June 30, 2020 and December 31, 2019, the fair value of the 2024 Notes (Note 8) was approximately ~~$984,860,~~$901,269 and $951,050, respectively, determined using Level 2 inputs as they are not actively traded in markets.

The cost and fair value of the Company’s cash and cash equivalents and available-for-sale investments as of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018~~2019 were as follows:

	September 30, 2019								June 30, 2020
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value		Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash and cash equivalents:
Cash	$	30,016	$	—	$	—	$	30,016	$	40,295	$	—	$	—	$	40,295
Money market funds		982,180		—		—		982,180		921,061		—		—		921,061
Commercial paper		7,987		—		—		7,987
Total	$	1,020,183	$	—	$	—	$	1,020,183	$	961,356	$	—	$	—	$	961,356

Short-term investments:
Commercial paper	$	21,887	$	—	$	—	$	21,887	$	9,988	$	—	$	—	$	9,988
Corporate debt securities		7,449		2		—		7,451
U.S. Treasury securities		1,988		1		—		1,989		1,998		2		—		2,000
Total	$	31,324	$	3	$	—	$	31,327	$	11,986	$	2	$	—	$	11,988

	December 31, 2018									December 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Cash and cash equivalents:
Cash	$	39,712	$	—	$	—		$	39,712	$	22,408	$	—	$	—		$	22,408
Money market funds		133,202		—		—			133,202		815,158		—		—			815,158
Commercial paper		12,478		—		—			12,478		9,989		—		—			9,989
Total	$	185,392	$	—	$	—		$	185,392	$	847,555	$	—	$	—		$	847,555

Short-term investments:
Corporate debt securities	$	13,477	$	—	$	(7	)	$	13,470	$	13,453	$	2	$	(1	)	$	13,454
Commercial paper		30,838		—		—			30,838		27,932		—		—			27,932
U.S. Treasury securities		1,999		—		—			1,999		1,998		1		—			1,999
Total	$	46,314	$	—	$	(7	)	$	46,307	$	43,383	$	3	$	(1	)	$	43,385

As of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018,~~2019, respectively, all investments mature in less than one year. Estimated fair values for marketable securities are based on quoted market prices for the same or similar instruments.

The Company reviews its investments on a quarterly basis to identify and evaluate investments that have an indication of possible impairment and has determined that 0 ~~other-than-temporary~~ impairments were required to be recognized during the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018.~~2019.

The Company determines if an arrangement is, or contains, a lease at inception. Operating leases are included in operating right-of-use assets and operating lease liabilities in the condensed consolidated balance sheets.

~~ROU~~ The Company does not separate non-lease components from lease components for its real estate and data center leases and instead account for each separate lease component, and non-lease components associated with that lease component, as a single lease component. The Company does not recognize right-of-use assets ~~represent the Company’s right to use an underlying asset for the lease term~~ and lease liabilities ~~represent the Company’s obligation to make~~for short-term leases, which have a lease ~~payments based on the lease contracts. Operating lease ROU assets and liabilities were recognized at adoption date~~term of twelve months or lease commencement date, if the commencement date was after January 1, 2019, based on the present value of lease payments over the remaining lease term. The Company’s lease contracts do not provide an implicit rate, as such the Company used its incremental borrowing rate based on the information available at adoption date or lease commencement date, if the commencement date was after January 1, 2019, in determining the present value of lease payments. The operating lease ROU assets also include any lease payments made to the lessors at or before the lease commencement date, and excludes lease incentives. The lease terms may include options to extend or terminate the lease

~~when it is reasonably certain that the Company will exercise that option. Lease expense is recognized on a straight-line basis over the lease term.~~less.

The Company has operating leases for corporate offices, research and development facilities, sales and marketing offices, and data centers.

The ~~Company adopted ASC 842~~ ~~in the first quarter of 2019, utilizing the modified retrospective transition approach through a cumulative-effect adjustment to the opening accumulated deficit as of January 1, 2019.~~ ~~The Company continues to report the comparative periods presented in the period of adoption under ASC 840.~~

~~The~~Company’s real estate leases have remaining lease terms for ~~one~~up to ~~eight~~ten years, some of which include options to extend the lease period up to ten years. The data center leases have remaining lease terms ~~of one year~~up to three years, some of which have renewal periods of one year.

In October 2018, the Company entered into a 127 month lease agreement to lease approximately 242,400 square feet of corporate office space in Sunnyvale, California, which is expected to become the Company’s new corporate ~~headquarters beginning in 2020.~~headquarters. The property ~~will be~~is being constructed by the landlord, with the completion date expected to occur ~~between August and~~in November 2020, which is when the lease is expected to ~~commence, as~~commence. As such 0 ROU assets or related lease liabilities were recorded in the condensed financial statements for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019.~~2020. The lease contains a rent holiday period, scheduled

rent increases, lease incentives, and renewal option which allow the lease term to be extended by five years. Base rental payments will be approximately $161,300 over the lease term.

	Three Months Ended September 30,		Nine Months Ended September 30,		Three Months Ended June 30,				Six Months Ended June 30,
	2019		2019		2020		2019		2020		2019
Operating lease cost	$	6,570	$	19,301	$	7,203	$	6,391	$	14,311	$	12,731
Short-term lease cost		774		2,121		617		709		1,291		1,347
Variable lease cost		821		2,529		1,127		853		2,165		1,708
Total lease cost	$	8,165	$	23,951	$	8,947	$	7,953	$	17,767	$	15,786

	Three Months Ended September 30,		Nine Months Ended September 30,			Three Months Ended June 30,				Six Months Ended June 30,
	2019		2019			2020		2019		2020			2019

Cash paid for amounts included in the measurement of operating lease liabilities	$	7,740	$	20,572		$	6,408	$	5,938	$	15,967		$	12,832
Right-of-use assets obtained in exchange for operating lease obligations	$	7,433	$	11,412		$	18,660	$	3,234	$	28,195		$	3,979
Weighted-average remaining lease term - operating leases			5 years							5 years			4 years
Weighted-average discount rate - operating leases				5.01	%						4.32	%		4.83	%

Maturities of lease liabilities as of ~~September~~June 30, ~~2019~~2020 were as follows:

~~Premises rent expense were $2,817 and $8,192 for the three and nine months ended September 30, 2018, respectively.~~

As previously disclosed in the Company’s 2018 Annual Report on Form 10-K and under ASC-840, future minimum lease payments for operating leases having initial or remaining noncancelable lease terms in excess of one year as of December 31, 2018 would have been as follows:

	Operating leases		Operating leases
2019	$	25,313
Year ending December 31,
2020		17,535	$	14,242
2021		19,155		19,640
2022		21,581		17,725
2023		19,609		8,234
2024				4,836
Thereafter		129,154		13,714
Total minimum lease payments	$	232,347
Total lease payments				78,391
Less imputed interest				(8,346	)
Total			$	70,045

Under the indemnification provisions of the Company’s customer agreements, the Company agrees to indemnify and defend and hold harmless its customers against, among other things, infringement of any patent, trademark or copyright under any country’s laws or the misappropriation of any trade secret arising from the customers’ legal use of the Company’s solutions. The exposure to the Company under these indemnification provisions is generally limited to the total amount paid by the customers under the applicable customer agreement. However, certain indemnification provisions potentially expose the Company to losses in excess of the aggregate amount paid to the Company by the customer under the applicable customer agreement. To date, there have been no claims against the Company or its customers pursuant to these indemnification provisions.

From time to time, the Company may be involved in legal proceedings and subject to claims in the ordinary course of business. For lawsuits where the Company is the defendant, the Company is in the process of defending these litigation matters, and while there can be no assurances and the outcomes of these matters are currently not determinable, the Company

currently believes that there are no existing claims or proceedings that are likely to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

On August 23, 2019, the Company issued $920,000 aggregate principal amount of 0.25% Convertible Senior Notes due 2024 (the “2024 Notes”). The offering represented $800,000 aggregate principal amount of the 2024 Notes plus the full exercise of the initial buyers’ option to purchase up to an additional $120,000 aggregate principal amount. The net proceeds after the agent’s discount and issuance costs of $19,065 from the 2024 Notes offering were approximately $900,935. The Company used $84,871 of the net proceeds from the offering to pay the cost of the capped call transactions described below. The Company expects to use the remaining net proceeds for general corporate purposes, which may include acquisitions or other strategic transactions. The 2024 Notes are senior unsecured, unsubordinated obligations of the Company. The 2024 Notes bear interest at 0.25% per year, payable semi-annually in arrears every February 15 and August 15, beginning on February 15, 2020. The 2024 Notes mature on August 15, 2024, unless repurchased, redeemed or converted in accordance with their terms prior to such date.

The initial conversion rate is 6.4941 shares of the Company’s common stock per $1 principal amount of the 2024 Notes, which equates to an initial conversion price of $153.99 per share of common stock. Throughout the term of the 2024 Notes, the conversion rate may be adjusted upon the occurrence of certain events.

At the Company’s option, on or after August 20, 2022, the Company will be able to redeem all or a portion of the 2024 Notes at 100% of the principal amount, plus any accrued and unpaid interest, under certain conditions. The Company may redeem the 2024 Notes in shares of the Company’s common stock, cash, or some combination of each.

Prior to April 15, 2024, the 2024 Notes will be convertible at the option of the holders only upon the satisfaction of certain conditions and during certain periods upon the following circumstances:

On or after April 15, 2024, holders may convert their 2024 Notes at the applicable conversion rate at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date.

Holders of the 2024 Notes also have the right to require the Company to repurchase all or a portion of the 2024 Notes at 100% of the principal amount, plus accrued and unpaid interest, if any, upon the occurrence of certain fundamental changes to the Company.

In accounting for the issuance of the 2024 Notes, the Company separated the 2024 Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of similar liabilities that do not have associated convertible features. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the principal amount of the 2024 Notes. The Company bifurcated the conversion option of the 2024 Notes from the debt instrument, classified the conversion option in equity and will accrete the resulting debt discount as interest expense over the contractual term of the 2024 Notes using the effective interest rate method. The equity component is not remeasured while the 2024 Notes continue to meet the conditions for equity classification. Upon issuance of the 2024 Notes, after allocation of debt discount and issuance costs, the Company recorded $737,912 as debt and $163,023 as additional paid in capital within stockholders’ equity.

The effective interest rate of the liability component of the 2024 Notes is 4.76%. This interest rate was based on the interest rates of similar liabilities held by other companies with similar credit risk ratings at the time of issuance that did not have associated convertible features.

The debt discount and issuance costs were allocated based on the total amount incurred to the liability and equity components using the same proportions as the proceeds from the 2024 Notes. The equity issuance costs of $3,450 were recorded as a decrease to additional paid-in capital at the issuance date.

The following table represents the carrying value of the 2024 Notes as of ~~September~~June 30, ~~2019:~~2020:

	September 30, 2019			June 30, 2020			December 31, 2019
Liability component:
Principal	$	920,000		$	920,000		$	920,000
Less: debt discount and issuance costs, net of amortization		(178,633	)		(153,597	)		(170,380	)
Net carrying amount	$	741,367		$	766,403		$	749,620
Equity component (1)	$	163,023		$	163,023		$	163,023

(1) Recorded on the consolidated balance sheets as additional paid-in capital, net of the $3,450 issuance costs in equity.

In connection with the issuance of the 2024 Notes, including the initial purchasers’ exercise of the option to purchase additional 2024 Notes, the Company entered into privately negotiated capped call transactions with certain counterparties (the “Capped Calls”). The Capped Calls are expected to reduce potential dilution to the Company’s common stock upon conversion of the 2024 Notes and/or offset any cash payments that the Company is required to make in excess of the principal amount of the converted 2024 Notes, as the case may be, with such reduction and/or offset subject to a cap. The Capped Calls have a cap price equal to $223.98 per share, subject to certain adjustments, and expire on August 15, 2024. The Capped Calls are subject to adjustment upon the occurrence of specified extraordinary events affecting the Company, including merger events, tender offers and announcement events. In addition, the Capped Calls are subject to certain specified additional disruption events that may give rise to a termination of the Capped Calls, including nationalization, insolvency or delisting, changes in law, failures to deliver, insolvency filings and hedging disruptions.

For accounting purposes, the Capped Calls are separate transactions, and not part of the terms of the 2024 Notes. As these transactions meet certain accounting criteria, the Capped Calls are recorded in stockholders’ equity and are not accounted for as derivatives. The premium paid for the purchase of the Capped Calls in the amount of $83,720 and related issuance cost of $1,151 have been recorded as a reduction to additional paid-in capital and will not be remeasured.

On June 17, 2015, the Company issued $200,000 principal amount of 0.75% Convertible Senior Notes due 2020 (the “2020 Notes”) in a private offering to initial buyers pursuant to Rule 144A under the Exchange Act. The initial buyers of the 2020 Notes also had an option to purchase an additional $30,000 in principal amount which was exercised in full. The net proceeds after the agent’s discount and issuance costs of $6,581 from the 2020 Notes offering were approximately $223,419. The Company used the net proceeds for working capital and general corporate purposes, which included funding the Company’s operations, capital expenditures, and acquisitions of businesses, products or technologies. The 2020 Notes bore interest at 0.75% per year, payable semi-annually in arrears every June 15 and December 15, beginning on December 15, 2015.

During the quarter ended September 30, 2018, $229,869 of the principal amount of the 2020 Notes was converted into 2,928 shares of common stock, with the remaining $142 repaid in cash. The shares of common stock had a fair value of $336,994 at the time of the conversion. This transaction resulted in a $7,207 loss on extinguishment that was included in interest expense in the Consolidated Statement of Operations. The loss on extinguishment was calculated as the difference between the fair value amount allocated to the liability component on the date of conversion and net carrying amount of the liability component.

For the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, the Company incurred the following expenses related to the ~~2020 Notes and~~ 2024 Notes:

	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018		2020		2019		2020		2019
Interest expense related to contractual interest coupon	$	243	$	309	$	243	$	1,171	$	575	$	—	$	1,150	$	—
Amortization of debt discount and issuance costs		3,455		2,230		3,455		8,383		8,438		—		16,783		—
Loss on conversion		—		7,207		—		7,207
Total	$	3,698	$	9,746	$	3,698	$	16,761	$	9,013	$	—	$	17,933	$	—

On March 30, 2012, the Board of Directors and the Company’s stockholders approved the 2012 Equity Incentive Plan (the “2012 Plan”), which became effective in April 2012. The 2012 Plan was amended, effective June 2019, when the Company’s stockholders approved an Amended and Restated 2012 Equity Incentive Plan (the “Amended 2012 Plan”) at the annual meeting of the stockholders on June 6, 2019. The Company has 78 equity incentive plans: the Company’s 2002 stock option plan (the “2002 Plan”), the Amended 2012 Plan and 56 plans assumed by the Company upon various business acquisitions. The assumed plans are the Cloudmark plan, the WebLife plan, the Meta Networks plan, the ObserveIT plan and 2 FireLayers plans. Upon the Company’s initial public offering, all shares that were reserved under the 2002 Plan but not issued, and shares issued but subsequently returned to the plan through forfeitures, cancellations and repurchases became part of the 2012 Plan and no further shares will be granted pursuant to the 2002 Plan. No further shares will be granted pursuant to the assumed plans. All outstanding stock awards under the 2002 Plan, the assumed plans and Amended 2012 Plan will continue to be governed by their existing terms. Under the Amended 2012 Plan, the Company has the ability to issue incentive stock options (“ISOs”), nonstatutory stock options (“NSOs”), restricted stock awards, stock bonus awards, stock appreciation rights (“SARs”), restricted stock units (“RSUs”), and performance stock units (“PSUs”). The Amended 2012 Plan also allows direct issuance of common stock to employees, outside directors and consultants at prices equal to the fair market value at the date of grant of options or issuance of common stock. Additionally, the Amended 2012 Plan provides for the grant of performance cash awards to employees, directors and consultants. The Company has the right to repurchase any unvested shares (at the option exercise price) of common stock issued directly or under option exercises. The right of repurchase generally expires over the vesting period.

Stock bonus and other liability awards are accounted for as liability-classified awards, because the obligations are based predominantly on fixed monetary amounts that are generally known at the inception of the obligation, to be settled with a variable number of shares of the Company’s common stock.

Under the equity incentive plans, the term of an option grant shall not exceed ten years from the date of its grant and options generally vest over a three to four-year period, with vesting on a monthly or annual interval. As of ~~September~~June 30, ~~2019, 7,916~~2020, 6,601 shares were available for future grant. Restricted stock awards generally vest over a ~~four-year~~four to five-year period.

The Company net-share settles equity awards held by employees by withholding shares upon vesting to satisfy tax withholding obligations. The shares withheld to satisfy employee tax withholding obligations are returned to the Company’s Amended 2012 Plan and will be available for future issuance. Payments for employee’s tax obligations to the tax authorities are recognized as a reduction to additional paid-in capital and reflected as financing activities in the Company’s consolidated statements of cash flows.

There were 0 options granted during the ~~three and nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018.~~2019.

The Company realized no income tax benefit from stock option exercises in each of the periods presented due to recurring losses and the valuation allowances for deferred tax assets.

The total intrinsic value of options exercised was ~~$22,759~~$10,067 and ~~$54,964~~$16,078 for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively. Total cash proceeds from such option exercises were ~~$3,704~~$3,522 and ~~$7,173~~$2,876 for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively.

The fair value of option grants that vested was ~~$1,094~~$1,285 and ~~$2,693~~$815 for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively.

As of ~~September~~June 30, ~~2019,~~2020, the Company had unamortized stock-based compensation expense of ~~$4,323~~$6,212 related to stock options that will be recognized over the average remaining vesting term of the options of ~~1.4~~1.79 years.

	RSUs and PSUs Outstanding					RSUs and PSUs Outstanding
	Number of Shares			Granted Fair Value Per Unit		Number of Shares			Granted Fair Value Per Unit
Awarded and unvested at December 31, 2018		4,568		$	89.88
Awards assumed per business acquisition		76			119.13
Awarded and unvested at December 31, 2019							4,895		$	103.48
Awards granted		1,150			120.18		982			99.62
Awards vested		(936	)		91.42		(749	)		101.84
Awards forfeited		(325	)		95.53		(146	)		105.58
Awarded and unvested at September 30, 2019		4,533		$	97.33
Awarded and unvested at June 30, 2020							4,982		$	102.90

As of ~~September~~June 30, ~~2019,~~2020, there was ~~$297,819~~$358,368 of unamortized stock-based compensation expense related to unvested RSUs, which is expected to be recognized over a weighted average period of ~~3.3~~3.39 years.

The Company granted ~~171~~155 shares of PSU and ~~249~~11 restricted performance-based shares in the six months ended June 30, 2020. The Company granted 161 shares of PSUs in the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2019. The PSU and ~~2018, respectively. The PSU~~restricted shares vesting conditions were based on individual performance targets. Unamortized stock-based compensation expense was ~~$22,497~~$2,908 as of ~~September~~June 30, ~~2019.~~2020.

The total accrued liability for the stock bonus and other liability awards was ~~$10,435~~$8,200 and ~~$12,741~~$13,427 as of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018,~~2019, respectively.

During the ~~nine~~six months ended ~~September~~June 30, 2020 and 2019, 125 and ~~2018,~~ 107 ~~and 61~~ shares, respectively, of common stock earned under the stock bonus program were issued. Stock-based compensation expense related to stock bonus program was ~~$10,435~~$8,200 and ~~$9,206~~$6,484 for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively.

In March 2015, the Company issued liability awards with a fair value of $6,885, which vested annually over a three-year period and were subject to continuous service and other conditions. The liability was settled with a variable number of shares of the Company’s common stock. During the nine months ended September 30, 2018, 20 shares were vested and issued. The Company recognized $408 of stock-based compensation expense related to these liability awards in the nine months ended September 30, 2018. There were 0 outstanding liability awards as of December 31, 2018.

On March 30, 2012, the Board of Directors and the Company’s stockholders approved the 2012 Employee Stock Purchase Plan (the “ESPP”), which became effective in April 2012. A total of 745 shares of the Company’s common stock were initially reserved for future issuance under the ESPP. The number of shares reserved for issuance under the ESPP will increase automatically on January 1 of each of the first eight years commencing with 2013 by the number of shares equal to 1% of the Company’s shares outstanding on the immediately preceding December 31, but not to exceed 1,490 shares, unless the Board of Directors, in its discretion, determines to make a smaller increase. As of ~~September~~June 30, ~~2019,~~2020, there were ~~2,277~~2,580 shares of the Company’s common stock available for future issuance under the ESPP.

As of ~~September~~June 30, ~~2019,~~2020, the Company expects to recognize ~~$888~~$4,057 of the total unamortized compensation cost related to employee purchases under the ESPP over a weighted average period of ~~0.1~~0.38 years.

The Company granted 111 shares of restricted stock in 2016 to certain key employees with the total fair value of $8,669 with annual vesting term of three years. The Company recognized ~~$2,159~~$1,432 of stock-based compensation expense in ~~each of~~ the ~~nine~~six months ended ~~September~~June 30, ~~2019 and 2018.~~2019. As of ~~September 30,~~December 31, 2019, ~~there was $190 of unamortized stock-based compensation expense related to the unvested~~all shares of restricted stock. The shares of restricted stock are subject to forfeiture if employment terminates prior to the lapse of the restrictions, and are expensed over the vesting period. They are considered issued and outstanding shares of the Company at the grant date and have the same rights as other shares of common stock.were vested.

As part of the WebLife acquisition in 2017, 107 shares were deferred for certain key employees with the total fair value of $9,652, and a vesting period between three and four years. The Company recognized ~~$1,806~~$1,204 and $1,197 of stock-based compensation in ~~each of~~ the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively. As of ~~September~~June 30, ~~2019,~~2020, there was ~~$5,226~~$3,413 of

unamortized stock-based compensation expense related to the unvested deferred shares. The deferred shares are subject to forfeiture if employment terminates prior to the lapse of the deferral date, and are expensed over the vesting period.

As part of the acquisition of Wombat ~~acquisition~~Security Technologies, Inc. in 2018, 51 shares were deferred for certain key employees with the total fair value of $5,458, and a vesting period of two years. The Company recognized ~~$2,193~~$382 and ~~$1,600~~$1,598 of stock-based compensation in the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively. As of ~~September~~June 30, ~~2019, there was $977 of unamortized stock-based compensation expense related to the unvested deferred shares. The deferred~~2020, all shares ~~are subject to forfeiture if employment terminates prior to the lapse of the deferral date, and are expensed over the vesting period.~~were fully vested.

As part of the Meta Networks acquisition in 2019, 72 shares were deferred for certain key employees with the total fair value of $8,338 allocated to post-combination expense, and a vesting period of three years. The Company recognized ~~$1,049~~$1,383 and $350 of stock-based compensation in the ~~nine~~six months ended ~~September~~June 30, ~~2019.~~2020 and 2019, respectively. As of ~~September~~June 30, ~~2019,~~2020, there was ~~$7,289~~$5,206 of unamortized stock-based compensation expense related to the unvested deferred shares. The deferred shares are subject to forfeiture if employment terminates prior to the lapse of the deferral date and are expensed over the vesting period. They are considered issued and outstanding shares of the Company at the acquisition date and have the same rights as other shares of common stock.

Basic net loss per share of common stock is calculated by dividing the net loss by the weighted‑average number of shares of common stock outstanding for the period. The weighted‑average number of shares of common stock used to calculate basic net loss per share of common stock excludes those shares subject to repurchase related to stock options or restricted stock that were exercised or issued prior to vesting as these shares are not deemed to be issued for accounting purposes until they vest. Diluted net loss per share of common stock is computed by dividing the net loss using the weighted‑average number of shares of common stock, excluding common stock subject to repurchase, and, if dilutive, potential shares of common stock outstanding during the period. Basic and diluted net loss per common share was the same for all periods presented as the impact of all potentially dilutive securities outstanding was anti-dilutive.

The following table presents the potentially dilutive common shares outstanding that were excluded from the computation of diluted net loss per share for the periods presented because including them would have been anti-dilutive:

	September 30, 2019		September 30, 2018		June 30, 2020		June 30, 2019
Stock options to purchase common stock		1,069		1,474		930		1,132
Restricted stock units		4,533		3,805		4,982		4,589
Employee stock purchase plan		114		97		127		244
Common stock subject to repurchase		244		232		143		54
Bonus and other liability awards		81		89		74		114
2024 Notes		5,975		—		5,975		—
Total		12,016		5,697		12,231		6,133

Operating segments are reported in a manner consistent with the internal reporting supported and defined by the components of an enterprise about which separate financial information is available, provided and is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker is its Chief Executive Officer. The Company’s Chief Executive Officer reviews financial information presented on a consolidated basis. The Company has one business activity, and there are no segment managers who are held accountable for operations, operating results and plans for levels or components below the consolidated unit level. Accordingly, the Company determined that it has 1 operating and reportable segment.

The following sets forth total revenue ~~by solutions offered by the Company and~~ by geographic area. Revenue by geographic area is based upon the billing address of the customer:

	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018		2020		2019		2020		2019
Total revenue:
United States	$	182,087	$	148,718	$	518,188	$	422,878	$	205,077	$	172,682	$	403,702	$	336,101
Rest of world		45,298		35,461		126,573		95,637		53,361		41,757		104,510		81,275
Total revenue	$	227,385	$	184,179	$	644,761	$	518,515	$	258,438	$	214,439	$	508,212	$	417,376

	September 30, 2019		December 31, 2018		June 30, 2020		December 31, 2019
Long-lived assets:
United States	$	56,889	$	57,682	$	70,092	$	58,447
Rest of world		13,396		12,945		14,771		15,065
Total long-lived assets	$	70,285	$	70,627	$	84,863	$	73,512

The Company’s quarterly provision for income taxes is based on an estimated effective annual income tax rate. The Company’s quarterly provision for income taxes also includes the tax impact of certain unusual or infrequently occurring items, if any, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, in the interim period in which they occur.

Income tax expense for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 was ~~$18,376~~$1,660 and ~~$19,276~~$29,829 on pre-tax losses of ~~$25,964~~$20,935 and ~~$82,255,~~$67,003, respectively. The Company recognized income tax ~~benefit~~expense of ~~$20~~$280 and ~~$13,978~~$900 on pre-tax losses of ~~$36,080~~$28,633 and ~~$96,492~~$56,291 for the three and ~~nine~~six months ended ~~September~~June 30, ~~2018,~~2019, respectively. The income tax rate for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 varied from the United States statutory income tax rate primarily due to valuation allowances in the United States whereby pre-tax losses and income do not result in the recognition of corresponding income tax benefits and ~~expenses and~~expenses. The income tax rate for the six months ended June 30, 2020 also varied from the United States statutory income rate due to the recognition of ~~a $17,641~~$27,107 tax expense related to the transfer of certain intellectual property rights ~~between~~from the Company’s wholly owned subsidiary in Israel to the United ~~States.~~States which occurred in the quarter ended March 31, 2020. The income tax rate for the three and ~~nine~~six months ended ~~September~~June 30, ~~2018~~2019 varied from the United States statutory income tax rate primarily due to valuation allowances in the United States whereby pre-tax losses and income do not result in the recognition of corresponding income tax benefits and expenses and also due to the recognition of a $14,725 deferred tax benefit in the U.S. related to changes in the Company’s valuation allowance resulting from the Wombat business acquisition in the first quarter of 2018.expenses.

The Company’s effective tax rate for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018~~2019 was negative ~~23%~~45% and ~~14%~~2%, respectively.

The Company reviews the likelihood that it will realize the benefit of its deferred tax assets and, therefore, the need for valuation allowances, on a quarterly basis. There is 0 corresponding income tax benefit recognized with respect to losses incurred and 0 corresponding income tax expense recognized with respect to earnings generated in jurisdictions with a valuation allowance. This causes variability in the Company’s effective tax rate. The Company intends to maintain the valuation allowances until it is more likely than not that the net deferred tax assets will be realized.

During the three months ended March 31, 2017, the Company transferred certain intellectual property rights from its wholly owned subsidiary in Israel to the United States. Although the transfer of intellectual property rights between consolidated entities did not result in any gain in the consolidated statements of operations, the transfer did result in a taxable gain in Israel. In the Company’s financial statements ending before January 1, 2018, taxes incurred related to the intercompany transaction have been treated as a prepaid tax asset in the Company’s consolidated balance sheet and were being amortized to income tax expense over the life of the intellectual property. Effective January 1, 2018, pursuant to the Company’s modified retrospective adoption of ASU 2016-16, the Company’s remaining prepaid tax asset of $3,216 was recorded as an increase to accumulated deficit.

As of ~~September~~June 30, ~~2019,~~2020, the Company’s gross uncertain tax benefits totaled ~~$31,798,~~$50,581, excluding related accrued interest and penalties of ~~$529.~~$1,238. As of ~~September~~June 30, ~~2019, $15,872~~2020, $32,206 of the Company’s uncertain tax benefits, including related accrued interest and penalties, would impact the effective tax rate if recognized. During the ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, the Company’s gross uncertain tax benefits increased ~~$15,344.~~$17,411. The increase is comprised of a ~~$13,960~~$17,432 increase for tax positions taken in the current period, offset by a ~~$1,450 increase~~$21 decrease for tax positions taken in prior ~~periods, offset by a $66 decrease related to statute~~periods.

The Company is currently under audit by the Israel Tax Authority for tax years 2013 through 2017. ~~Related~~Due to the audit by the Israel Tax Authority it is reasonably possible that the Company’s uncertain tax positions could change within the next 12 months. An estimate of the range of any change cannot be made. The Company believes it has recorded all appropriate provisions for all jurisdictions and open years. However, the Company can give no assurance that taxing authorities will not propose adjustments that would increase its tax liabilities. The Company is not currently under audit by the IRS or any similar taxing authority in any other material jurisdiction.

The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was enacted by the United States on March 27, 2020. The CARES Act did not have a material impact on the Company’s provision for income taxes for the six months ended June 30, 2020.

The Company’s tax-deferred savings plan is qualified under Section 401(k) of the United States Internal Revenue Code. Employees may make voluntary, tax-deferred contributions to the 401(k) Plan up to the statutorily prescribed annual limit. The Company makes discretionary matching contributions to the 401(k) Plan on behalf of employees up to the limit determined by the Board of Directors. The Company contributed ~~$851~~$579 and ~~$2,271,~~$2,228, respectively, to the 401(k) Plan during the three and ~~nine~~six months ended ~~September~~June 30, ~~2019.~~2020. The Company contributed ~~$310~~ $589 and ~~$1,268,~~$1,420, respectively, to the 401(k) Plan during ~~both~~ the three and ~~nine~~six months ended ~~September~~June 30, ~~2018.~~2019.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the (1) unaudited condensed consolidated financial statements and the related notes thereto included elsewhere in this Quarterly Report on Form 10-Q, and (2) the audited consolidated financial statements and notes thereto and management’s discussion and analysis of financial condition and results of operations for the year ended December 31, ~~2018~~2019 included in our ~~2018~~2019 Annual Report on Form 10-K. This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These statements are often identified by the use of words such as “may,” “will,” “expect,” “believe,” “anticipate,” “intend,” “could,” “estimate,” or “continue,” and similar expressions or variations. Such forward-looking statements are subject to risks and uncertainties, including risk and uncertainty around the impact of the COVID-19 outbreak, and other factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified herein, and those discussed in the section titled “Risk Factors”, set forth in Part II, Item 1A of this Form 10-Q and in our other SEC filings, including our ~~2018~~2019 Annual Report on Form 10-K. We disclaim any obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

Proofpoint is a leading next generation cybersecurity company that enables large and mid-sized organizations worldwide to protect their employees from advanced threats and compliance risks. Our security and compliance platform is comprised of an integrated suite of advanced threat protection, information protection, and brand protection solutions. These capabilities include email protection and authentication, advanced threat protection, data loss prevention, email encryption, SaaS application protection, response orchestration and automation, digital risk, security training, web browser isolation, archiving, eDiscovery, supervision, and secure communication. Our solutions are built on a flexible, cloud-based platform and leverage a number of proprietary technologies - including big data analytics, machine learning, deep content inspection, secure storage, advanced encryption, intelligent message routing, dynamic malware analysis, threat correlation, and virtual execution environments to address today’s rapidly changing threat and compliance landscape.

Our platform addresses this growing challenge by not only protecting data as it flows into and out of the enterprise via on-premises and cloud-based email, social media and other cloud applications, but also by keeping track of this information as it is modified and distributed throughout the enterprise for compliance and data loss prevention, and securely archiving these communications for compliance and discovery. We help organizations reduce their critical risk in five major ways:

Our platform and its associated solutions are sold to customers on a subscription basis and can be deployed through our unique cloud-based architecture that leverages both our global data centers as well as optional points-of-presence behind our customers’ firewalls. Our flexible deployment model enables us to deliver superior security and compliance while maintaining the favorable economics afforded by cloud computing, creating a competitive advantage for us over legacy on-premises and cloud-only offerings.

We were founded in 2002 to provide a unified solution to help enterprises address their growing data security requirements. Our first solution was commercially released in 2003 to combat the burgeoning problem of spam and viruses and their impact on corporate email systems. To address the evolving threat landscape and the adoption of communication and collaboration systems beyond corporate email and networks, we have broadened our solutions to defend against a wide range of threats, including email, mobile apps ~~cloud~~ and social media, to protect the information people create from both compromise and compliance risks, and to archive and govern corporate information. Today, our solutions are used worldwide to protect well over 100 million ~~end-users~~end users at enterprise customers, and ~~hundreds of~~ millions more via service providers through our Cloudmark division. As the threat environment has continued to evolve, we have dedicated significant resources to meet the ongoing challenges that this highly dynamic environment creates for our customers such as investing significantly to expand the breadth of our data protection platform as these expenditures are primarily in connection with the replacement and upgrade of equipment to lower the cost of deployment as well as to improve the efficiency for our cloud-based architecture.

Our business is based on a recurring revenue model. Our customers pay a subscription fee to license the various components of our SaaS platform for a contract term that is typically one to three years. At the end of the license term, customers may renew their subscription and in each year since the launch of our first solution in 2003, we have maintained a renewal rate with our existing customers of over 90%. We derive this retention rate by calculating the total annually recurring subscription revenue from customers currently using our SaaS platform and dividing it by the total annually recurring subscription revenue from both these current customers as well as all business lost through non-renewal.

We market and sell our solutions worldwide both directly through our sales teams and indirectly through a hybrid model where our sales organization actively assists our network of distributors and resellers. We also derive a lesser portion of our total revenue from the license of our solutions to strategic partners who offer our solutions in conjunction with one or more of their own products or services.

Our solutions are designed to be implemented, configured and operated without the need for any training or professional services. We offer various training and professional services for those customers that seek to develop deeper expertise in the use of our solutions or would like assistance with complex configurations or the importing of data. In some cases, we provide a hardware appliance to those customers that elect to host elements of our solution behind their firewall. Increasing adoption of virtualization in the data center has led to a decline in the sales of our hardware appliances and a shift towards our software-based virtual appliances, which are delivered as a download via the Internet. Our hardware and services offerings carry lower margins and are provided as a courtesy to our customers. We expect the overall proportion of revenue derived from the hardware and services offerings to generally remain below 5% of our total revenue.

Historically, the majority of our revenue was derived from our customers in the United States. We believe the markets outside of the United States offer an opportunity for growth and we intend to make additional investments in sales and marketing to expand in these markets. Revenue from customers outside of the United States grew by ~~28%~~29% for the ~~three~~six months ended ~~September~~June 30, ~~2019~~2020 as compared to the prior year period, representing ~~20%~~21% of our total revenue for the period. ~~Two~~In terms of customer concentration, two partners ~~each~~ accounted for ~~12%~~13% and 11%, respectively, of our total revenue for the three months ended ~~September~~June 30, ~~2019. One partner~~2020. Two partners accounted for 12% and 11% of our total revenue, respectively, for the three months ended ~~September~~June 30, ~~2018.~~2019. These partners sold to a number of end-users, none of which accounted for more than 10% of our total revenue. The partners’ sales were spread across many individual customers, all of which have a direct relationship with us as part of their access to our demand services.

We have not been profitable to date and will need to grow revenue at a rate faster than our investments in cost of revenue and operating expenses in order to achieve profitability, as discussed in more detail below.

In March 2020, the World Health Organization declared the outbreak of the COVID-19 pandemic, which continues to spread throughout the U.S. and the world and has resulted in authorities implementing numerous measures to contain the virus, including travel bans and restrictions, quarantines, shelter-in-place orders, and business limitations and shutdowns. During the first two quarters of 2020, the Company’s overall financial results and operations were modestly impacted by the COVID-19 outbreak. The Company also indicated it expected to experience a modest decline in new and add-on billings as compared to 2019, which will have a greater impact on the Company’s financial results in the second half of 2020 than in the first half of the year. The Company’s travel expense and marketing expense for in-person events were decreased as well due to global restrictions on travel issued by most major nations where the Company does business. In addition, see Part II-Item 1A, “Risk Factors,” included herein for an update that we made to our existing risk factors to include information on risks associated with pandemics in general and COVID-19 specifically. The extent to which the COVID-19 outbreak impacts our financial results and operations for fiscal year 2020 and going forward will depend on future developments which are highly

uncertain and cannot be predicted, including new information which may emerge concerning the severity of the outbreak and the actions being taken to contain and treat it.

We are taking a variety of measures to ensure the availability and functioning of our critical infrastructure, to promote the safety and security of our employees and to support the communities in which we operate. These measures include requiring remote working arrangements for employees where practicable. We are following public and private sector policies and initiatives to reduce the transmission of COVID-19, such as the imposition of travel restrictions, the promotion of social distancing and the adoption of work-from-home arrangements, and all of these policies and initiatives could impact our operations. The COVID-19 pandemic presents extraordinary challenges in predicting future performance, and while we have modeled many scenarios and associated outcomes, there may be events or trends that are more dire than we have modeled given the unique nature of this event. In particular, we are monitoring COVID-19’s effects on our business across many dimensions, including its broad effects on customers in highly impacted industries and on key European economies as they each attempt to recover. These dimensions may change as the pandemic and the response to the pandemic evolve. Some of our customers impacted by COVID-19 seek to manage cash by executing shorter contract durations or by furloughing or laying off employees, especially in highly impacted industries such as travel and hospitality. Other customers are choosing to slow or defer projects, especially those in highly impacted industries and with complex projects requiring large archiving imports that rely heavily on third party resources to manage and execute. We will continue to monitor the impact of the COVID-19 pandemic and continually assess its potential effects on our business and our outlook, the actual results of which will largely depend on future developments, including the duration and spread of the outbreak as well as the varied impacts to our customer base by region or industry, which cannot be accurately predicted and are uncertain.

The total costs associated with the teams tasked with closing business with new customers and additional business with our existing customers have represented more than 90% of our total sales and marketing costs since 2008. Although we expect customers to be profitable over the duration of the customer relationship, the upfront costs typically exceed related revenue during the earlier periods of a contract. As a result, while our practice of invoicing our customers for the entire amount of the contract at the start of the term provides us with a relatively immediate contribution to cash flow, the revenue is recognized ratably over the term of the contract, and hence contributions toward operating income are limited in the period where the sales and marketing costs are incurred. Accordingly, an increase in the mix of new customers as a percentage of total customers would likely negatively impact our near-term operating results. On the other hand, we expect that an increase in the mix of existing customers as a percentage of total customers would positively impact our operating results over time. As we accumulate customers that continue to renew their contracts, we anticipate that our mix of existing customers will increase, contributing to a decrease in our sales and marketing costs as a percentage of total revenue and a commensurate improvement in our operating income.

As part of maintaining our SaaS platform, we provide ongoing updates and enhancements to the platform services both in terms of the software as well as the underlying hardware and data center infrastructure. These updates and enhancements are provided to our customers at no additional charge as part of the subscription fees paid for the use of our platform. While more traditional products eventually become obsolete and require replacement, we are constantly updating and maintaining our cloud-based services and as such they operate with a continuous product life cycle. Much of this work is designed to both maintain and enhance the customers’ experience over time while also lowering our costs to deliver the service. Our SaaS platform is a shared infrastructure that is used by all of our customers. Accordingly, the costs of the platform are spread in a relatively uniform manner across the entire customer base and no specific infrastructure elements are directly attached to any particular customer. As such, in the event that a customer chooses to not renew its subscription, the underlying resources are reallocated either to new customers or to accommodate the expanding needs of our existing customers and, as a result, we do not believe that the loss of any particular customer has a meaningful impact on our gross profit as long as we continue to grow our customer base.

To date, our customers have primarily used our solutions in conjunction with email messaging content. We have developed solutions to address new and evolving messaging solutions such as social media and file sharing applications, but these solutions are relatively nascent. If customers increase their use of these new messaging solutions in the future, we anticipate that our growth in revenue associated with older email messaging solutions may slow over time. Although revenue associated with our social media and file sharing applications has not been material to date, we believe that our ability to provide security, archiving, governance and discovery for these new solutions will be viewed as valuable by our existing customers, enabling us to derive revenue from these new forms of messaging and communication.

With the majority of our business, we invoice our customers for the entire contract amount at the start of the term and these amounts are recorded as deferred revenue on our balance sheet, with the dollar weighted average duration of these contracts for any given period over the past three years typically ranging from 14 to 20 months. As a result, while our practice

of invoicing customers for the entire amount of the contract at the start of the term provides us with a relatively immediate contribution to cash flow, the revenue is recognized ratably over the term of the contract, and hence contributions toward operating income are realized over an extended period. As such, our efforts to improve our profitability require us to invest far less in operating expenses than the cash flow generated by our business might otherwise allow. As we strive to invest in an effort to continue to increase the size and scale of our business, we expect that the level of investment afforded by our growth in revenue should be sufficient to fund the investments needed to drive revenue growth and broaden our product line.

Considering all of these factors, we do not expect to be profitable on a GAAP basis in the near term and in order to achieve profitability we will need to grow revenue at a rate faster than our investments in operating expenses and cost of revenue.

We intend to grow our revenue through acquiring new customers by investing in our sales and marketing activities. We believe that an increase in new customers in the near term will result in a larger base of renewal customers, which, over time, we expect to be more profitable for us.

Sales and marketing is our largest expense and hence a significant contributing factor to our operating losses. We believe that our opportunity to improve our return on investment on sales and marketing costs relies primarily on our ongoing ability to cost-effectively renew our business with existing customers, thereby lowering our overall sales and marketing costs as a percentage of revenue as the mix of revenue derived from this more profitable renewal activity increases over time. Therefore, we anticipate that our initial significant investments in sales and marketing activities will, over time, generate a larger base of more profitable customers. Cost of subscription revenue is also a significant expense for us, and we expect to continue to build on the improvements over the past years, such as in replacing third-party technology with our proprietary technology and improving the utilization of our fixed investments in equipment and infrastructure, in order to provide the opportunity for improved subscription gross margins over time. Although we plan to continue enhancing our solutions, we intend to lower our rate of investment in research and development as a percentage of revenue over time by deriving additional revenue from our existing solutions rather than by adding entirely new categories of solutions. In addition, as personnel costs are one of the primary drivers of the increases in our operating expenses, we plan to reduce our historical rate of headcount growth over time.

We regularly review a number of metrics, including the following key metrics presented in the table below, to evaluate our business, measure our performance, identify trends in our business, prepare financial projections and make strategic decisions. Many of these key metrics, such as non-GAAP gross margin, billings and free cash flow, are non-GAAP measures. This non-GAAP information is not necessarily comparable to non-GAAP information of other companies. Users of this financial information should consider the types of events and transactions for which adjustments have been made.

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018			2020			2019			2020			2019
	($ in thousands)												($ in thousands)
Total revenue	$	227,385		$	184,179		$	644,761		$	518,515		$	258,438		$	214,439		$	508,212		$	417,376
Growth		23	%		37	%		24	%		39	%		21	%		25	%		22	%		25	%
Gross margin percentage		74	%		72	%		73	%		71	%		74	%		73	%		73	%		73	%
Non-GAAP gross margin		80	%		78	%		79	%		78	%		80	%		79	%		80	%		79	%
Billings (non-GAAP)	$	277,841		$	221,377		$	725,009		$	605,470		$	250,018		$	232,119		$	488,007		$	447,168
Growth		26	%		33	%		20	%		34	%		8	%		17	%		9	%		16	%
Free cash flow (non-GAAP)	$	58,592		$	58,207		$	142,251		$	106,582
Free cash flows (non-GAAP)													$	18,820		$	35,037		$	98,635		$	83,659

We define non-GAAP gross margin as non-GAAP gross profit divided by GAAP revenue. We define non-GAAP gross profit as GAAP gross profit, adjusted to exclude stock-based compensation expense and the amortization of intangibles associated with acquisitions. We consider this non-GAAP financial measure to be a useful metric for management and investors because it excludes the effect of stock-based compensation expense and the amortization of intangibles associated with acquisitions so that our management and investors can compare our business operating results over multiple periods, and compare our financial results with other companies in its industry, many of which present similar non-GAAP financial measure. However, there are a number of limitations related to the use of non-GAAP gross margin versus gross margin calculated in accordance with GAAP. For example, stock-based compensation has been and will continue to be for the foreseeable future a significant recurring expense in our business. Stock-based compensation is an important part of our employees’ compensation and impacts their performance. In addition, the components of the costs that we exclude in our

calculation of non-GAAP gross margin may differ from the components that our peer companies exclude when they report their non-GAAP results. Management compensates for these limitations by providing specific information regarding the GAAP amounts excluded from non-GAAP gross margin and evaluating non-GAAP gross margin together with gross margin calculated in accordance with GAAP.

The following table presents the reconciliation of gross margin to Non-GAAP gross margin for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018:~~2019:

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018			2020			2019			2020			2019
	($ in thousands)												($ in thousands)
GAAP gross profit	$	167,504		$	133,242		$	471,809		$	369,749		$	190,863		$	156,611		$	371,706		$	304,305
GAAP gross margin		74	%		72	%		73	%		71	%		74	%		73	%		73	%		73	%
Plus:
Stock-based compensation expense		5,562			3,977			15,666			12,038			6,643			5,323			13,556			10,104
Intangible amortization expense		7,886			7,121			22,153			20,141
Amortization expense of intangible assets														9,992			7,505			19,930			14,267
Non-GAAP gross profit	$	180,952		$	144,340		$	509,628		$	401,928		$	207,498		$	169,439		$	405,192		$	328,676
Non-GAAP gross margin		80	%		78	%		79	%		78	%		80	%		79	%		80	%		79	%

We have included billings, a non‑GAAP financial measure, in this report because it is a key measure used by our management and board of directors to manage our business and monitor our near-term cash flows. We define billings as revenue recognized plus the change in deferred revenue and customer prepayments less unbilled accounts receivable from the beginning to the end of the period, but excluding additions to deferred revenue and customer prepayments from acquisitions. We have provided reconciliation between total revenue, the most directly comparable GAAP financial measure, and billings. Accordingly, we believe that billings provide useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors.

Our use of billings as a non-GAAP measure has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for revenue or an analysis of our results as reported under GAAP. Some of these limitations are:

Our deferred revenue consists of amounts that have been invoiced but have not been recognized as revenue as of the period end. Customer prepayments represent billed amounts for which the contract can be terminated and the customer has a right of refund. Unbilled accounts receivable ~~represents~~represent amounts for which we have recognized revenue, pursuant to our revenue recognition policy, for subscription software already delivered and professional services already performed, but billed in arrears and for which we believe we have an unconditional right to payment.

The following table presents the reconciliation of total revenue to billings for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018:~~2019:

	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018			2020			2019			2020			2019
	(in thousands)												($ in thousands)
Total revenue	$	227,385		$	184,179		$	644,761		$	518,515		$	258,438		$	214,439		$	508,212		$	417,376
Deferred revenue and customer prepayments
Ending		688,105			534,309			688,105			534,309			776,255			635,450			776,255			635,450
Beginning		635,450			496,315			605,073			431,371			787,098			617,170			797,173			605,073
Net change		52,655			37,994			83,032			102,938			(10,843	)		18,280			(20,918	)		30,377
Unbilled accounts receivable
Ending		4,060			1,886			4,060			1,886			1,542			1,861			1,542			1,861
Beginning		1,861			1,090			1,276			603			3,965			1,261			2,255			1,276
Net change		(2,199	)		(796	)		(2,784	)		(1,283	)		2,423			(600	)		713			(585	)
Less: deferred revenue contributed by acquisitions		—			—			—			14,700
Billings	$	277,841		$	221,377		$	725,009		$	605,470		$	250,018		$	232,119		$	488,007		$	447,168

We define free cash flow as net cash provided by operating activities minus capital expenditures. We consider free cash flow to be a liquidity measure that provides useful information to management and investors about the amount of cash generated by the business that, after the acquisition of property and equipment, can be used for strategic opportunities, including investing in our business, making strategic acquisitions, and strengthening the balance sheet. Analysis of free cash flow facilitates management’s comparisons of our operating results to competitors’ operating results. A limitation of using free cash flow versus the GAAP measure of net cash provided by operating activities as a means for evaluating our company is that free cash flow does not represent the total increase or decrease in the cash balance from operations for the period because it excludes cash used for capital expenditures during the period. Management compensates for this limitation by providing information about our capital expenditures on the face of the cash flow statement and in the “Liquidity and Capital Resources” section below.

The discussion and analysis of our financial condition and results of operations is based upon our accompanying Condensed Consolidated Financial Statements, which have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires us to make estimates, assumptions and judgments that can have significant impact on the reported amounts of assets and liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities at the date of our financial statements. We base our estimates, assumptions and judgments on historical experience and various other factors that we believe to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions. On a regular basis, we evaluate our estimates, assumptions and judgments and make changes accordingly.

We believe that the estimates, assumptions and judgments involved in revenue recognition, deferred commissions, stock-based compensation expense, fair value of assets acquired and liabilities assumed in business combinations, impairment assessment of goodwill, intangible assets and other long-lived assets, loss contingency, and recognition and measurement of current and deferred income taxes have the greatest potential impact on our accompanying Condensed Consolidated Financial Statements, and consider these to be our critical accounting estimates. Historically, our estimates, assumptions and judgments relative to our critical accounting policies have not differed materially from actual results. The critical accounting estimates associated with these policies are described in our ~~2018~~2019 Annual Report on Form 10-K, under “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

For performance-based restricted stock units and restricted shares, we recognize expense when it is probable that the performance conditions will be met. We assess these conditions on a quarterly basis.

We derive our revenue primarily through the license of various solutions and services on our security-as-a-service platform on a subscription basis, supplemented by the sales of training, professional services and hardware depending upon our customers’ requirements.

Subscription. We license our platform and its associated solutions and services on a subscription basis. The fees are charged on a per user, per year basis. Subscriptions are typically one to three years in duration. We invoice our customers upon signing for the entire term of the contract. The invoiced non-cancellable amounts billed in advance are treated as deferred revenue on the balance sheet and are recognized ratably, in accordance with the appropriate revenue recognition guidelines, over the term of the contract. We also derive a portion of our subscription revenue from the license of our solutions to strategic partners. We bill these strategic partners monthly. We expect our subscription revenue will continue to grow and remain above 95% of our total revenue.

Hardware and services. We provide hardware appliances as a convenience to our customers and as such it represents a small part of our business. Our solutions are designed to be implemented, configured and operated without the need for any training or professional services. For those customers that seek to develop deeper expertise in the use of our solutions or would like assistance with complex configurations or the importing of data, we offer various training and professional services. We typically invoice the customer for hardware at the time of shipment. We typically invoice customers for services at the time the order is placed and recognize this revenue as the services are performed. On occasion, customers may retain us for special projects such as archiving import and export services; these types of services are recognized upon completion of the project. We expect the overall proportion of revenue derived from hardware and service offerings to generally remain below 5% of our total revenue.

Our cost of revenues consists of cost of subscription revenue and cost of hardware and services revenue. Personnel costs, which consist of salaries, benefits, bonuses, stock-based compensation, data center costs and hardware costs, are the most significant components of our cost of revenues. We expect personnel costs to continue to increase in absolute dollars as we hire new employees to continue to grow our business.

Cost of Subscription Revenue. Cost of subscription revenue primarily includes personnel costs, consisting of salaries, benefits, bonuses, and stock-based compensation, for employees who provide support services to our customers and operate our data centers. Other costs include fees paid to contractors who supplement our support and data center personnel; expenses related to the use of third-party data centers in both the United States and internationally; depreciation of data center equipment; amortization of licensing fees and royalties paid for the use of third-party technology; amortization of internally developed intangible assets; and the amortization of intangible assets acquired through business combinations. Growth in subscription revenue generally consumes production resources, requiring us to gradually increase our cost of subscription

revenue in absolute dollars as we expand our investment in data center equipment, the third-party data center space required to house this equipment, and the personnel needed to manage this higher level of activity.

Cost of Hardware and Services Revenue. Cost of hardware and services revenue includes personnel costs for employees who provide training and professional services to our customers as well as the cost of server hardware shipped to our customers that we procure from third parties and configure with our software solutions.

Our operating expenses consist of research and development, sales and marketing, and general and administrative expenses. Personnel costs, which consist of salaries, benefits, bonuses, and stock-based compensation, are the most significant component of our operating expenses. Our headcount has increased from ~~449~~2,047 employees as of December 31, ~~2012~~2017 to ~~2,613~~3,368 employees as of December 31, ~~2018.~~2019. As a result of this growth in headcount, operating expenses have increased significantly over these periods. We expect personnel costs to continue to increase in absolute dollars as we hire new employees to continue to grow our business.

Research and Development. Research and development expenses include personnel costs, consulting services and depreciation. We believe that these investments have played an important role in broadening the capabilities of our platform over the course of our operating history, enhancing the relevance of our solutions in the market in general and helping us to retain our customers over time. We expect to continue to devote substantial resources to research and development in an effort to continuously improve our existing solutions as well as to develop new offerings. We believe that these investments

are necessary to maintain and improve our competitive position. However, over the longer term, we intend to monitor these costs so as to decrease this spending as a percentage of total revenue. Our research efforts include both software developed for our internal use on behalf of our customers as well as software elements to be used by our customers in their own facilities. To date, our capitalized costs on software developed for internal use on behalf of our customers were not material. For the software developed for use on our customers’ premises, the costs associated with the development work between technological feasibility and the general availability has not been material and as such we have not capitalized any of these development costs to date.

Sales and Marketing. Sales and marketing expenses include personnel costs, sales commissions, and other costs including travel and entertainment, marketing and promotional events, public relations and marketing activities. These costs also include amortization of intangible assets as a result of our past acquisitions. Due to our continued investment in growing our sales and marketing operations, both domestically and internationally, headcount increases were reflected in higher compensation expense consistent with our revenue growth. Our sales personnel are typically not immediately productive, and therefore the increase in sales and marketing expenses we incur when we add new sales representatives is not immediately offset by increased revenue and may not result in increased revenue over the long-term if these new sales people fail to become productive. The timing of our hiring of new sales personnel and the rate at which they generate incremental revenue will affect our future financial performance. We expect that sales and marketing expenses will continue to increase in absolute dollars and be among the most significant components of our operating expenses.

General and Administrative. General and administrative expenses consist of personnel costs, consulting services, audit fees, tax services, legal expenses and other general corporate items. As a result of our operational growth, we expect our general and administrative expenses to increase in absolute dollars in future periods as we continue to expand our operations and hire additional personnel.

Interest expense consists of interest expense related to our convertible senior notes.

Other income (expense), net, consists primarily of interest income earned on our cash, cash equivalents and short-term investments, and the net effect of foreign currency transaction gains and losses.

For most of the prior years, our income tax expense or benefit were primarily related to state and foreign income taxes. As we have incurred operating losses in all periods to date and recorded a full valuation allowance against our deferred tax assets, we had not historically recorded a provision for federal income taxes. However, in the three months ended March 31, 2018, we recognized $14.7 million of deferred tax benefit in the U.S. related to changes in our valuation allowance resulting from the Wombat Security Technologies, Inc. acquisition. Realization of any of our deferred tax assets depends

upon future earnings, the timing and amount of which are uncertain. Utilization of our net operating losses and research and development credits may be subject to substantial annual limitation due to the ownership change limitations provided by the Internal Revenue Code and similar state provisions. Analyses have been conducted to determine whether an ownership change had occurred since inception. The analyses have indicated that although ownership changes have occurred in prior years, the net operating losses and research and development credits would not expire before utilization as a result of the ownership change. In the event we have subsequent changes in ownership, net operating losses and research and development credit carryovers could be limited and may expire unutilized as a result of the subsequent ownership change.

Refer to Note 1 “The Company and Summary of Significant Accounting Policies” to our condensed consolidated financial statements in Part I, Item 1 of this Quarterly Report on Form 10-Q for a full description of recent accounting pronouncements.

The following table is a summary of our consolidated statements of operations and results of operations as a percentage of our total revenue for those periods.

	Three Months Ended September 30,												Nine Months Ended September 30,												Three Months Ended June 30,												Six Months Ended June 30,
	2019						2018						2019						2018						2020						2019						2020						2019
	Amount			% of revenue			Amount			% of revenue			Amount			% of revenue			Amount			% of revenue			Amount			% of revenue			Amount			% of revenue			Amount			% of revenue			Amount			% of revenue
	($ in thousands)																								($ in thousands)
Revenue:
Subscription	$	224,275			99	%	$	181,505			99	%	$	634,639			98	%	$	509,311			98	%	$	254,892			99	%	$	210,780			98	%	$	498,961			98	%	$	410,364			98	%
Hardware and services		3,110			1			2,674			1			10,122			2			9,204			2			3,546			1			3,659			2			9,251			2			7,012			2
Total revenue		227,385			100			184,179			100			644,761			100			518,515			100			258,438			100			214,439			100			508,212			100			417,376			100
Cost of revenue:
Subscription		52,308			23			45,679			25			151,208			24			133,495			26			59,193			23			50,648			24			119,041			23			98,900			24
Hardware and services		7,573			3			5,258			3			21,744			3			15,271			3			8,382			3			7,180			3			17,465			4			14,171			3
Total cost of revenue		59,881			26			50,937			28			172,952			27			148,766			29			67,575			26			57,828			27			136,506			27			113,071			27
Gross profit		167,504			74			133,242			72			471,809			73			369,749			71			190,863			74			156,611			73			371,706			73			304,305			73
Operating expense:
Research and development		60,060			26			45,917			25			168,494			26			137,176			26			70,602			27			55,185			26			140,497			27			108,434			26
Sales and marketing		105,502			46			90,006			49			305,343			47			252,814			49			116,279			45			102,837			48			239,441			47			199,841			48
General and administrative		26,388			12			23,877			13			80,094			13			60,431			12			14,812			6			27,881			13			44,367			9			53,706			13
Total operating expense		191,950			84			159,800			87			553,931			86			450,421			87			201,693			78			185,903			87			424,305			83			361,981			87
Operating loss		(24,446	)		(10	)		(26,558	)		(15	)		(82,122	)		(13	)		(80,672	)		(16	)		(10,830	)		(4	)		(29,292	)		(14	)		(52,599	)		(10	)		(57,676	)		(14	)
Interest expense		(3,698	)		(2	)		(9,746	)		(5	)		(3,698	)		(1	)		(16,761	)		(3	)		(9,013	)		(4	)		—			—			(17,933	)		(4	)		—			—
Other income, net		2,180			1			224			—			3,565			1			941			—
Other (expense) income, net																										(1,092	)		—			659			1			3,529			1			1,385			—
Loss before income taxes		(25,964	)		(11	)		(36,080	)		(20	)		(82,255	)		(13	)		(96,492	)		(19	)		(20,935	)		(8	)		(28,633	)		(13	)		(67,003	)		(13	)		(56,291	)		(14	)
(Provision for) benefit from income taxes		(18,376	)		(8	)		20			—			(19,276	)		(3	)		13,978			3
Provision for income taxes																										(1,660	)		(1	)		(280	)		—			(29,829	)		(6	)		(900	)		—
Net loss	$	(44,340	)		(19	)%	$	(36,060	)		(20	)%	$	(101,531	)		(16	)%	$	(82,514	)		(16	)%	$	(22,595	)		(9	)%	$	(28,913	)		(13	)%	$	(96,832	)		(19	)%	$	(57,191	)		(14	)%

Comparison of the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018:~~2019:

	Three Months Ended September 30,							Nine Months Ended September 30,							Three Months Ended June 30,							Six Months Ended June 30,
	2019		2018		% Change			2019		2018		% Change			2020		2019		% Change			2020		2019		% Change
	($ in thousands)														($ in thousands)
Revenue
Subscription	$	224,275	$	181,505		24	%	$	634,639	$	509,311		25	%	$	254,892	$	210,780		21	%	$	498,961	$	410,364		22	%
Hardware and services		3,110		2,674		16	%		10,122		9,204		10	%		3,546		3,659		(3	)%		9,251		7,012		32	%
Total revenue	$	227,385	$	184,179		23	%	$	644,761	$	518,515		24	%	$	258,438	$	214,439		21	%	$	508,212	$	417,376		22	%

Subscription revenue for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 increased $~~42.8~~44.1 million, or ~~24%~~21%, and ~~$125.3~~$88.6 million, or ~~25%~~22%, respectively,, as compared to the corresponding periods last year. The increases were primarily due to

~~$33.1~~ $32.9 million and ~~$94.7~~$65.9 million, respectively, increases in subscription revenue contributed from the United States. To a lesser extent, for the same ~~period,~~periods, there were increases of ~~$9.7~~$11.2 million and ~~$30.6~~$22.7 million, respectively, in revenue contributed from international locations. The increases in subscription revenue were due to the increased demand for our advanced threat solutions, increase in add-on activity and renewal rate being in excess of 90%. Additionally, the revenue recognized from acquired deferred revenue related to our acquisitions were ~~$1.1~~$1.5 million and $~~4.2~~$3.6 million, respectively, in the three and ~~nine~~six months ended ~~September~~June 30, ~~2019, respectively,~~2020 as compared to ~~$5.0~~$1.3 million and ~~$17.8~~$3.1 million, respectively, in the three and ~~nine~~six months ended ~~September~~June 30, ~~2018.~~2019.

Hardware and services revenue change was not material for the three ~~and nine~~ months ended ~~September~~June 30, ~~2019~~2020 as compared to the same period in 2019. For the six months ended June 30, 2020, hardware and service revenue increased ~~$0.4~~$2.2 million, or ~~16%, and $0.9 million, or 10%, respectively,~~32% as compared to the corresponding ~~periods~~period last year. The increase ~~for the three months ended September 30, 2019 was primarily due to higher professional service revenue. The increase for the nine months ended September 30, 2019~~ was primarily due to an increase in hardware revenue of ~~$0.5~~$0.8 million and an increase in professional service revenue of ~~$0.4~~$1.4 million.

	Three Months Ended September 30,							Nine Months Ended September 30,							Three Months Ended June 30,							Six Months Ended June 30,
	2019		2018		% Change			2019		2018		% Change			2020		2019		% Change			2020		2019		% Change
	(in thousands)														($ in thousands)
Cost of revenue
Subscription	$	52,308	$	45,679		15	%	$	151,208	$	133,495		13	%	$	59,193	$	50,648		17	%	$	119,041	$	98,900		20	%
Hardware and services		7,573		5,258		44	%		21,744		15,271		42	%		8,382		7,180		17	%		17,465		14,171		23	%
Total cost of revenue	$	59,881	$	50,937		18	%	$	172,952	$	148,766		16	%	$	67,575	$	57,828		17	%	$	136,506	$	113,071		21	%

Cost of subscription revenue for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 increased ~~$6.6~~$8.6 million, or ~~15%~~17%, and ~~$17.7~~$20.1 million, or ~~13%~~20%, respectively,, as compared to the corresponding periods last year. The increases were primarily due to ~~$3.5~~$6.1 million and ~~$8.6~~$13.9 million, respectively, increases in operations-related expenses including higher network expense from increased data usage, depreciation expense as a result of higher capital expenditures to support our growth, ~~and~~ intangible amortization expense of developed technology from the ~~acquisitions.~~acquisitions, and higher compensation costs due to increase in headcount. Support-related expenses increased ~~$2.7~~$3.0 million and ~~$8.0~~$6.6 million, respectively, primarily due to higher headcount related costs. ~~Costs from outside translation and other services increased $0.2 million and $1.1 million, respectively.~~

Cost of hardware and services revenue for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 increased ~~$2.3~~$1.2 million, or ~~44%~~17%, and ~~$6.5~~$3.3 million, or ~~42%~~23%, respectively,, as compared to the corresponding periods last year, primarily due to increases in professional service costs of ~~$2.2~~$1.1 million and ~~$6.1~~$2.7 million, respectively, as our headcount increased. The cost of hardware units sold increased ~~$0.2~~$0.5 million for the ~~nine~~six months ended ~~September~~June 30, ~~2019.~~2020.

	Three Months Ended September 30,									Nine Months Ended September 30,									Three Months Ended June 30,									Six Months Ended June 30,
	2019			2018			% Change			2019			2018			% Change			2020			2019			% Change			2020			2019			% Change
	($ in thousands)																		($ in thousands)
Research and development	$	60,060		$	45,917			31	%	$	168,494		$	137,176			23	%	$	70,602		$	55,185			28	%	$	140,497		$	108,434			30	%
Percent of total revenue		26	%		25	%					26	%		26	%					27	%		26	%					27	%		26	%

Research and development expenses increased ~~$14.1~~$15.4 million, or ~~31%~~28%, and ~~$31.3~~$32.1 million, or ~~23%~~30%, respectively,, for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the corresponding periods last year. The increase in headcount on a worldwide basis resulted in increased personnel-related expenses of ~~$12.9~~$13.4 million and ~~$29.2~~$27.6 million, respectively, and a corporate expense increase of $0.4 million and $1.4 million, respectively. ~~Corporate and facilities expenses~~Facilities expense increased ~~$1.2~~$1.0 million and ~~$1.7~~$2.0 million, respectively, primarily due to higher ~~headcount. Legal fees primarily associated with patents,~~network expense from higher data usage. Outside service-related expense increased ~~$0.2~~$0.9 million and ~~$0.5~~$1.3 million, ~~respectively.~~respectively, due to increase in consulting costs.

	Three Months Ended September 30,									Nine Months Ended September 30,									Three Months Ended June 30,									Six Months Ended June 30,
	2019			2018			% Change			2019			2018			% Change			2020			2019			% Change			2020			2019			% Change
	($ in thousands)																		($ in thousands)																	��
Sales and marketing	$	105,502		$	90,006			17	%	$	305,343		$	252,814			21	%	$	116,279		$	102,837			13	%	$	239,441		$	199,841			20	%
Percent of total revenue		46	%		49	%					47	%		49	%					45	%		48	%					47	%		48	%

Sales and marketing expenses increased ~~$15.5~~$13.4 million, or ~~17%~~13%, and ~~$52.5~~$39.6 million, or ~~21%~~20%, respectively,, for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the corresponding periods last year. The increase in headcount on a worldwide basis resulted in increased personnel-related and commissions expenses of ~~$15.0~~$17.6 million and ~~$43.3~~$40.6 million,

respectively, which include increases in stock-based compensation expense of ~~$3.3~~$1.2 million and ~~$9.0~~$6.0 million, respectively. Corporate and facilities expenses increased ~~$0.7~~$0.4 million and $1.6 million, respectively, due to higher headcount. ~~Travel expenses~~Intangible amortization expense increased ~~$0.7~~$1.3 million for the six months ended June 30, 2020 as compared to the same period last year. The increases were partially offset by the decreases in travel expense of $3.8 million and ~~$3.0~~$3.3 million, respectively, for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the same ~~periods~~period last ~~year. Intangible amortization expense decreased $0.3 million for the three months ended September 30, 2019 and increased $0.4 million for the nine months ended September 30, 2019 as compared~~year, primarily due to ~~the same periods last year.~~ travel restrictions imposed by COVID-19. Additionally, expense for lead generation, trade shows, advertising and other initiatives decreased ~~$0.6~~$1.0 million and ~~increased $4.2~~$0.8 million, ~~respectively.~~respectively, primarily due to the reduction of trade shows due to COVID-19.

	Three Months Ended September 30,									Nine Months Ended September 30,									Three Months Ended June 30,									Six Months Ended June 30,
	2019			2018			% Change			2019			2018			% Change			2020			2019			% Change			2020			2019			% Change
	($ in thousands)																		($ in thousands)
General and administrative	$	26,388		$	23,877			11	%	$	80,094		$	60,431			33	%	$	14,812		$	27,881			(47	)%	$	44,367		$	53,706			(17	)%
Percent of total revenue		12	%		13	%					13	%		12	%					6	%		13	%					9	%		13	%

General and administrative expenses ~~increased $2.5~~decreased $13.1 million, or ~~11%~~47%, and ~~$19.7~~$9.3 million, or ~~33%~~17%, respectively,, for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the corresponding periods last year. ~~Personnel-related expenses increased $0.5~~In the three months ended June 30, 2020, management determined that the performance conditions for certain performance stock units were not probable to be achieved, as a result, due to the change in estimate and cumulative catch-up adjustment, the expense associated with those performance stock units decreased $14.0 million and ~~$14.3~~$13.0 million for the three and six months ended June 30, 2020, respectively, ~~due~~as compared to ~~higher headcount~~the corresponding periods last year. Additionally, a non-recurring one-year RSU grant to the Chief Executive Officer fully vested in June 2019, and, ~~equity grants made. Corporate~~as such the expense for the three and ~~facilities expenses increased $0.7~~six months ended June 30, 2020 were reduced $2.6 million and ~~$1.6~~$6.5 million, respectively. Remaining personnel-related expense increased $4.0 million and $10.0 million for the three and six months ended June 30, 2020, respectively, primarily due to higher ~~headcount and an increase in cloud computing services. Outside service expenses~~headcount. Corporate expense increased ~~$0.6~~$0.5 million and ~~$3.5 million, respectively, primarily due to implementation of new accounting systems, and other accounting related costs. Litigation related expenses increased $1.1~~$1.6 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, respectively. Litigation related expenses increased $1.0 million and $1.8 million for the three and six months ended June 30, 2020, respectively, primarily due to trade secret litigation brought by us against a third party. Acquisition ~~related~~ costs decreased ~~$0.6~~$0.4 million and $0.1 million, respectively, and outside service expense decreased $1.3 million and $2.9 million, respectively, for the ~~nine~~three and six months ended ~~September~~June 30, ~~2019~~2020, primarily due to ~~the timing of the acquisitions.~~a reduction in implementation costs for new accounting systems, and other accounting related costs.

Interest expense of $9.0 million and $17.9 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019, related~~2020, respectively, were due to the 2024 Notes issued on August 23, 2019, and consisted of accretion of ~~$3.5~~$8.4 million and $16.8 million, respectively, and cash interest expense of ~~$0.2 million.~~$0.6 million and $1.2 million, respectively.

Interest expense for the three and nine months ended September 30, 2018, included a $7.2 million loss on conversion of the 2020 Notes in the third quarter of 2018. Accretion expense were $2.2 million and $8.4Other (Expense) Income, Net

Other income, net decreased $1.8 million for the three ~~and nine~~ months ended ~~September~~June 30, ~~2018, respectively. Cash~~2020, as compared to the corresponding period last year, primarily due to a $1.1 million increase in foreign currency translation loss and $0.7 million decrease in interest ~~expense were $0.3 million~~income from cash and ~~$1.2 million for the three and nine months ended September 30, 2018, respectively.~~investments.

Other income, net increased ~~$2.0~~$2.1 million ~~and $2.6 million, respectively,~~ for the ~~three and nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the corresponding ~~periods~~period last year, primarily due to ~~$2.0~~a $1.1 million increase in foreign currency translation gain and ~~$3.3~~$1.0 million ~~increases, respectively,~~increase in interest income from cash and investments due to higher cash and investment balances. The increase in other income for the nine months ended September 30, 2019 was partially offset by a $0.8 million loss increase due to fluctuations in foreign currency exchange rates.investments.

The provision for income taxes increased ~~$18.4~~$1.4 million and ~~$33.3~~$28.9 million, respectively, for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, as compared to the corresponding periods last year. The increase for the three months ended ~~September~~June 30, ~~2019~~2020 was primarily due to a $1.0 million increase of foreign taxes related to operations in our non-US subsidiaries, as compared to the corresponding prior period. The increase for the six months ended June 30, 2020 was primarily due to the transfer of intellectual property between consolidated entities that resulted in an additional tax expense of ~~$17.6 million. The~~$27.1 million, and a $1.4 million increase ~~for the nine months ended September 30, 2019 was primarily due to the $17.6 million~~ of ~~additional tax expense noted above combined with a $14.7 million deferred tax benefit in the U.S.~~foreign taxes related to ~~changes~~operations in ~~the valuation allowance resulting from the Wombat business acquisition which occurred in February of 2018.~~our non-US subsidiaries.

As of ~~September~~June 30, ~~2019,~~2020, we had ~~$1,020.2~~$961.4 million in cash and cash equivalents and ~~$31.3~~$12.0 million in short-term investments, for a total of ~~$1,051.5~~$973.3 million. Also refer to Note 8 “Convertible Senior Notes” to the consolidated financial statements for discussion of the 2024 Notes.The Company’s financial condition and liquidity remain strong. Net cash provided by operations was $122.8 million for the six months ended June 30, 2020, compared to $97.5 million for the corresponding period of the prior year. Although there is uncertainty related to the anticipated impact of the recent COVID-19 outbreak on the Company’s future results, we believe our efficient business model leaves us positioned to manage our business through this crisis as it continues to unfold. We continue to manage all aspects of our business including, but not limited to, monitoring the financial health of our customers, suppliers and other third-party relationships, implementing gross margin enhancement strategies and developing new opportunities for growth. We have also not observed any impairments of our assets or a significant change in the fair value of assets due to the COVID-19 pandemic.

As of ~~September~~June 30, ~~2019,~~2020, we had approximately ~~$20.5~~$24.9 million of cash and cash equivalents at our foreign subsidiaries. We estimate that no material U.S. income taxes would have to be provided if all of the undistributed earnings of our foreign subsidiaries were repatriated back to the United States as substantially all earnings from our foreign subsidiaries are previously taxed income.

In August 2019, we issued $920.0 million aggregate principal amount of the 2024 Notes. In connection with the issuance of the 2024 Notes, we entered into privately negotiated capped call transactions with certain counterparties. The cost of the Capped Calls was $84.9 million.

We plan to grow our customer base by continuing to emphasize investments in sales and marketing to add new customers, expand our customers’ use of our platform, and maintain high renewal rates. We also expect to incur additional cost of subscription revenue in accordance with the resulting growth in our customer base. We believe that the combination of our ongoing improvements in gross margins, the benefits of lower sales and marketing costs associated with our renewal activity, and the fact that our contracts are structured to bill our customers in advance should enable us to improve our cash flow from operations as we grow. Based on our current level of operations and anticipated growth, both of which are expected to be consistent with recent quarters, we believe that our existing sources of liquidity will be sufficient to fund our operations for at least the next 12 months. Our future capital requirements will depend on many factors, including our rate of revenue growth, the expansion of our sales and marketing activities, and the timing and extent of spending to support product development efforts and expansion into new territories, and the timing of introductions of new features and enhancements to our solutions. To the extent that existing cash and cash equivalents and cash from operations are insufficient to fund our future activities, we may need to raise additional funds through public or private equity or debt financing. We have invested, and plan to continue investing in acquiring complementary businesses, applications and technologies, and may continue to make such investments in the future, any of which could also require us to seek equity or debt financing in addition to our 2024 Notes. Additional funds may not be available on terms favorable to us or at all.

The following table sets forth a summary of our consolidated cash flows for the periods indicated:

Our net loss and cash flows from operating activities are significantly influenced by our investments in headcount and data center operations to support anticipated growth. Our cash flows are also influenced by cash payments from customers. We invoice customers for the entire contract amount at the start of the term, and as such our cash flow from operations is also affected by the length of a customer contract.

Net cash provided by operating activities in the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 was ~~$166.1~~$122.8 million, as compared to ~~$129.7~~$97.5 million provided in the ~~nine~~six months ended ~~September~~June 30, ~~2018.~~2019. The increase of ~~$36.4~~$25.3 million was primarily due to:

Our primary investing activities have consisted of the acquisitions of businesses, the purchase and sale of short-term investments and capital expenditures in support of expanding our infrastructure and workforce. As our business grows, we expect our capital expenditures and our investment activity to continue to increase.

Net cash provided by investing activities was $4.6 million in the six months ended June 30, 2020 as compared to $105.1 million used in investing activities ~~was $113.5 million~~ in the ~~nine~~six months ended ~~September~~June 30, ~~2019 as compared to $227.9 million used in the nine months ended September 30, 2018.~~2019. The ~~decrease~~increase in cash ~~used~~provided by investing activities of ~~$114.4~~$109.7 million was primarily due to a $101.8 million decrease in ~~business acquisition cost of $119.3 million,~~payments for acquired businesses, and a ~~$30.7~~$21.9 million ~~increase in maturities of short-term investments, partially offset by an $11.9 million~~ decrease ~~from sales of short-term investments, a $19.6 million increase~~ in cash spent to acquire short-term investments, partially offset by a ~~$0.7~~$3.9 million decrease in ~~capital expenditures,~~maturities of short-term investments, and a ~~$3.3~~$10.3 million ~~decrease~~increase in ~~escrow receipts.~~capital expenditures.

Net cash ~~provided by~~used in financing activities was ~~$790.6~~$16.6 million in the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 as compared to ~~$26.8~~$20.3 million used in the ~~nine~~six months ended ~~September~~June 30, ~~2018.~~2019. The ~~increase~~decrease in cash ~~provided by~~used in financing activities of $~~817.4~~3.7 million was primarily due to ~~$901.3 million proceeds from issuance of the 2024~~a ~~Notes, net of costs;~~ ~~a $0.6 million decrease in contingent consideration payment;~~ ~~a $0.4~~$3.8 million increase in proceeds from common stock issuance related to employee stock plans, partially offset by ~~$84.6~~ a $0.1 million ~~used to purchase capped calls in connection with the issuance of the 2024 Notes; and a $0.4 million decrease~~increase in withholding taxes paid related to restricted stock net share settlement.

During the periods presented, we did not have, nor do we currently have, any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. We are therefore not exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in those types of relationships.

There were no material changes outside the ordinary course of business during the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 to the contractual obligations and commitments disclosed in Management’s Discussion and Analysis of Financial Condition and Results of Operations, set forth in Part II, Item 7, of the Form 10-K.

We have operations both within the United States and internationally, and we are exposed to market risks in the ordinary course of our business. These risks primarily include interest rate, foreign exchange and inflation risks, as well as risks relating to changes in the general economic conditions in the countries where we conduct business. To reduce certain of these risks, we monitor the financial condition of our large clients and limit credit exposure by collecting in advance and setting credit limits as we deem appropriate. In addition, our investment strategy has been to invest in financial instruments that are highly liquid and readily convertible into cash. To date, we have not used derivative instruments to mitigate the impact of our market risk exposures. We have also not used, nor do we intend to use, derivatives for trading or speculative purposes.

We are exposed to market risk related to changes in interest rates. Our investments primarily consist of money market funds, corporate debt securities, commercial papers, U.S. agency and Treasury securities, and certificates of deposit. As of ~~September~~June 30, ~~2019,~~2020, we had cash, cash equivalents and short-term investments of ~~$1,051.5~~$973.3 million. The carrying amount of our cash equivalents and short-term investments reasonably approximates fair value, due to the short maturities of these investments. The primary objectives of our investment activities are the preservation of capital, the fulfillment of liquidity needs and the fiduciary control of cash and investments. We do not enter into investments for trading or speculative purposes. Our investments are exposed to market risk due to a fluctuation in interest rates, which may affect our interest income and the fair market value of our investments. Due to the short-term nature of our investment portfolio, we believe only dramatic fluctuations in interest rates would have a material effect on our investments. We do not believe that an immediate 10% increase in interest rates would have a material effect on the fair market value of our portfolio. As such we do not expect our operating results or cash flows to be materially affected by a sudden change in market interest rates.

As of ~~September~~June 30, ~~2019,~~2020, we had an outstanding balance of $920.0 million aggregate principal amount of the 2024 Notes (see Note 8 “Convertible Senior Notes” to the accompanying Condensed Consolidated Financial Statements). We carry the notes at face value, less relative fair value of conversion options allocated to equity and unamortized discounts, on our accompanying condensed consolidated balance sheets. Since these notes bear interest at fixed rates, we have no financial statement risk associated with changes in interest rates. However, the fair value of these notes fluctuates as interest rate changes when the market price of our common stock fluctuates.

The functional currency for our wholly owned foreign subsidiaries is the U.S. dollar. Accordingly, the subsidiaries remeasure monetary assets and liabilities at period-end exchange rates, while nonmonetary items are remeasured at historical rates. Income and expense accounts are remeasured at the average exchange rates in effect during the period. Remeasurement adjustments are recognized in the accompanying condensed consolidated statements of operations as foreign currency transaction gains or losses in the period of occurrence. The Company had ~~$1.4~~$0.1 million foreign currency transaction gain and ~~$0.6~~$0.9 million foreign currency transaction loss for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~September 30, 2018,~~2019, respectively. Transaction gains and losses are included in other income (expense), net.

As our international operations grow, our risks associated with fluctuation in currency rates will become greater, and we will continue to reassess our approach to managing this risk. In addition, currency fluctuations or a weakening U.S. dollar can increase the costs of our international expansion. For our operating results and cash flows, we evaluated the effects of a 10% shift in exchange rates between those currencies and the U.S. dollar. We have determined that there would not be a material effect on our results of operations from such a shift. To date, we have not entered into any foreign currency hedging contracts, since exchange rate fluctuations have not had a material impact on our operating results and cash flows. Based on our current international structure, we do not plan on engaging in hedging activities in the near future.

We do not believe that inflation has had a material effect on our business, financial condition or results of operations. Nonetheless, if our costs were to become subject to significant inflationary pressures, we may not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, financial condition and results of operations.

Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15 under the Exchange Act. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Based on our evaluation, our chief executive officer and chief financial officer concluded that, as of ~~September~~June 30, ~~2019,~~2020, our disclosure controls and procedures are designed at a reasonable assurance level and are effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosure.

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the quarter ended ~~September~~June 30, ~~2019~~2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. We have not experienced any material impact to our internal control over financial reporting despite the fact that most of our employees are working remotely due to the COVID-19 pandemic. We are continually monitoring and assessing the COVID-19 situation on our internal controls to minimize the impact on their design and operating effectiveness.

From time to time, we may be involved in legal proceedings and subject to claims in the ordinary course of business.

Although the results of these proceedings and claims cannot be predicted with certainty, we do not believe the ultimate cost to resolve these matters would individually, or taken together, have a material adverse effect on our business, operating results, cash flows or financial condition. Regardless of the outcome, such proceedings can have an adverse impact on us because of defense and settlement costs, diversion of resources and other factors, and there can be no assurances that favorable outcomes will be obtained.

Our operations and financial results are subject to various risks and uncertainties, including those described below, which could adversely affect our business, results of operations, cash flows, financial condition, and the trading price of our common stock.

We have a history of losses, and we are unable to predict the extent of any future losses or when, if ever, we will achieve profitability in the future.

We have incurred net losses in every year since our inception, including net losses of ~~$101.5~~$96.8 million and ~~$82.5~~$57.2 million for the ~~nine~~six months ended ~~September~~June 30, ~~2019~~2020 and ~~2018,~~2019, respectively. As a result, we had an accumulated deficit of ~~$696.9~~$822.4 million as of ~~September~~June 30, ~~2019.~~2020. Achieving profitability will require us to increase revenue, manage our cost structure, and avoid unanticipated liabilities. We do not expect to be profitable in the near term. Revenue growth may slow, or revenue may decline for a number of possible reasons, including slowing demand for our solutions, increasing competition, a decrease in the growth of our overall market, or if we fail for any reason to continue to capitalize on growth opportunities. Any failure by us to obtain and sustain profitability, or to continue our revenue growth, could cause the price of our common stock to decline significantly.

We are unable to accurately predict the full extent to which the global COVID-19 pandemic may impact our business operations, financial performance, results of operations and stock price.

The COVID-19 pandemic presents extraordinary challenges in predicting future performance, and while we have modeled many scenarios and associated outcomes, there may be events that are more dire than we have modeled given the unique nature of this event. Although we are closely monitoring the impact of the COVID-19 pandemic and continually assess its potential effects on our business, our actual results could vary widely from our models. The extent to which our projections are affected by COVID-19 will largely depend on future developments, including the duration and spread of the outbreak, which still cannot be accurately predicted and are uncertain. The COVID-19 pandemic or the perception of its effects could have a material adverse effect on our business, financial condition, results of operations, or cash flows.

Weakened global economic conditions may adversely affect our industry, business and financial results.

Our business depends on the overall demand for information technology and on the economic health of our current and prospective customers. Challenging economic conditions worldwide have from time to time contributed, and may continue to contribute, to slowdowns in the information technology industry, resulting in reduced demand for our solutions as a result of continued constraints on IT-related capital spending by our customers and increased price competition for our solutions. Further, any significant weakening of the economy in the United States or Europe and of the global economy, more limited availability of credit, a reduction in business confidence and activity, economic uncertainty and other difficulties, such as the COVID-19 pandemic, may affect one or more of the sectors or countries in which we sell our services. In addition, geopolitical developments, such as existing and potential trade wars and other events beyond our control, such as the COVID-19 pandemic, can increase levels of political and economic unpredictability globally and increase the volatility of global financial markets.

For example, current or potential customers have delayed and decreased and may continue to delay or decrease spending with us, or may not pay us or may delay paying us for previously performed services, given the impact that the COVID-19 pandemic has had and may continue to have on their business. Furthermore, the rate of customer terminations or service cancellations or failures to renew, which we refer to as churn, has and could also further increase as a result of the effects of the pandemic, which could include increased price competition or a reduction in customer spending. Due to

restrictions on travel and in-person meetings, current or potential customers may also not be interested in taking sales meetings or cancel existing sales meetings with our sales representatives, which could materially lengthen our sales cycle and slow our sales growth. Any of these events could have an adverse effect on our business, operating results and financial position.

Our quarterly operating results and other metrics are likely to vary significantly and be unpredictable, which could cause the trading price of our stock to decline.

Our operating results and other metrics have historically varied from period to period, and we expect that they will continue to do so as a result of a number of factors, many of which are outside of our control and may be difficult to predict, including:

Any one of the factors above or the cumulative effect of some of the factors referred to above may result in significant fluctuations in our financial and other operating results, including fluctuations in our key metrics. This variability and unpredictability could result in our failing to meet the expectations of securities analysts or investors for any period. If we fail to meet or exceed such expectations for these or any other reasons, the market price of our shares could fall substantially and we could face costly lawsuits, including securities class action suits. In addition, a significant percentage of our operating expenses are fixed in nature and based on forecasted revenue and cash flow trends. Accordingly, in the event of revenue shortfalls, we are generally unable to mitigate the negative impact on margins or other operating results in the short term.

We may fail to meet or exceed the expectations of securities analysts and investors, and the market price for our common stock could decline. If one or more of the securities analysts who cover us change their recommendation regarding our stock adversely, the market price for our common stock could decline. Additionally, our stock price may be based on expectations, estimates or forecasts of our future performance that may be unrealistic or may not be achieved. Further, our stock price may be affected by financial media, including press reports and blogs.

Our customers may fail to pay us in accordance with the terms of their agreements, necessitating action by us to compel payment.

If customers fail to pay us under the terms of our agreements, we may be adversely affected both from the inability to collect amounts due and the cost of enforcing the terms of our contracts, including through litigation. The risk of such negative effects increases with the term length of our customer arrangements. Furthermore, some of our customers have attempted to and may continue to attempt to renegotiate contracts, seek bankruptcy protection or other similar relief and fail to pay amounts due to us, or pay those amounts more slowly, either of which could adversely affect our operating results, financial position and cash flow. The recent and ongoing global COVID-19 pandemic may also increase the likelihood, frequency and magnitude of these risks.

If we are unable to maintain high subscription renewal rates, our future revenue and operating results will be harmed.

Our customers have no obligation to renew their subscriptions for our solutions after the expiration of their initial subscription period, which typically ranges from one to three years. In addition, our customers may renew for fewer subscription services or users, renew for shorter contract lengths or renew at lower prices due to competitive or other pressures. We cannot accurately predict renewal rates and our renewal rates may decline or fluctuate as a result of a number of factors, including competition, customers’ IT budgeting and spending priorities, and deteriorating general economic ~~conditions.~~conditions, including as a result of the COVID-19 pandemic. If our customers do not renew their subscriptions for our solutions, our revenue would decline, and our business would suffer.

If we are unable to sell additional solutions to our customers, our future revenue and operating results will be harmed.

Our future success depends on our ability to sell additional solutions to our customers. This may require increasingly sophisticated and costly sales efforts and may not result in additional sales. In addition, the rate at which our customers purchase additional solutions depends on a number of factors, including the perceived need for additional solutions, growth in the number of end-users, and general economic conditions. If our efforts to sell additional solutions to our customers are not successful, our business may suffer.

If our solutions fail to protect our customers from security breaches, our brand and reputation could be harmed, which could have a material adverse effect on our business and results of operations.

The threats facing our customers are constantly evolving and the techniques used by attackers to access or sabotage data change frequently. As a result, we must constantly update our solutions to respond to these threats. If we fail to update our solutions in a timely or effective manner to respond to these threats, our customers could experience security breaches. Many federal, state and foreign governments have enacted laws requiring companies to notify individuals of data security breaches involving their personal data. These mandatory disclosures regarding a security breach often lead to widespread negative publicity, and any association of us with such publicity may cause our customers to lose confidence in the effectiveness of our data security measures. Any security breach at one of our customers or even an unproven allegation of a security breach at one of our customers, could harm our reputation as a secure and trusted company and could cause the loss of customers. Similarly, if a well-publicized breach of data security at a customer of any other cloud‑based data protection or archiving service provider or other major enterprise cloud services provider were to occur, there could be a loss of confidence in the cloud‑based protection and storage of sensitive data and information generally.

In addition, our solutions work in conjunction with a variety of other elements in customers’ IT and security infrastructure, and we may receive blame and negative publicity for a security breach that may have been the result of the failure of one of the other elements not provided by us. The occurrence of a breach, whether or not caused by our solutions, or allegations of a breach, even if such allegations turn out to be untrue, could delay or reduce market acceptance of our

solutions and have an adverse effect on our business and financial performance. In addition, any revisions to our solutions that we believe may be necessary or appropriate in connection with any such breach may cause us to incur significant expenses. Any of these events could have material adverse effects on our brand and reputation, which could harm our business, financial condition, and operating results.

If our customers experience data losses and breaches via our products or solutions, our brand, reputation and business could be harmed.

Our customers rely on our archiving and other solutions to protect, transfer or store their corporate data, which may include financial records, credit card information, business information, health information, other personally identifiable information or other sensitive personal information. A breach of our network security and systems or other events that cause the loss or public disclosure of, or access by third parties to, our customers’ stored files or data could have serious negative consequences for our business, including possible fines, penalties and damages, reduced demand for our solutions, an unwillingness of our customers to use our solutions, harm to our brand and reputation, and time-consuming and expensive litigation. The techniques used to obtain unauthorized access, disable or degrade service, or sabotage systems change frequently, often are not recognized until launched against a target, and may originate from less regulated or remote areas around the world. As a result, we may be unable to proactively prevent these techniques, implement adequate preventative or reactionary measures, or enforce the laws and regulations that govern such activities. In addition, because of the large amount of data that we collect and manage, it is possible that hardware failures, insider errors or malfeasance or errors in our systems could result in data loss or corruption, or cause the information that we collect to be incomplete or contain inaccuracies that our customers regard as significant. If our customers experience any data loss, or any data corruption or inaccuracies, whether caused by security breaches or otherwise, our brand, reputation and business would be harmed.

Our insurance may be inadequate or may not be available in the future on acceptable terms, or at all. In addition, our policy may not cover any claim against us for loss of data or other indirect or consequential damages. Defending a suit based on any data loss or system disruption, regardless of its merit, could be costly and divert management’s attention.

Defects or vulnerabilities in our solutions could harm our reputation, reduce the sales of our solutions and expose us to liability for losses.

Because our solutions are complex, undetected errors, failures or bugs may occur, especially when solutions are first introduced or when new versions or updates are released, or when we introduce an acquired company’s products of services, despite our efforts to test those solutions and enhancements prior to release. This includes not only vulnerabilities that are specific to our solutions, but also vulnerabilities that impact the third-party or open source software or services that we use or the hardware that we rely on for our solutions. Additionally, we may be impacted by the evaluation of the security of our services by third party security scoring companies whether those evaluations are accurate or not. We may not be able to correct defects, errors, vulnerabilities or failures promptly, or to correct inaccuracies in perceptions about these matters at all.

Any defects, errors, vulnerabilities or failures in our solutions could result in:

Limitation of liability provisions in our standard terms and conditions and our other agreements may not adequately or effectively protect us from any claims related to defects, errors, vulnerabilities or failures in our solutions, including as a result of federal, state or local laws or ordinances or unfavorable judicial decisions in the United States or other countries.

Our software, website, hosted and internal systems may be subject to intentional disruption or penetration from external attackers or insiders that could adversely impact our reputation and future sales.

We could be a target of attacks specifically designed to impede the performance of our solutions, redirect users to malicious sites, harm our reputation or misappropriate our or our customers’ proprietary information. Similarly, experienced

computer hackers may attempt to penetrate our network or other security or the security of our website or other hosted or internal systems or to trick our employees into taking actions that compromise our security (such as via phishing or business email compromise attacks) in order to misappropriate proprietary information and/or cause interruptions of our services and/or expose perceived security vulnerabilities. It is also possible that systems may be disrupted or our sensitive information or the information of our customers might be exposed due to malfeasance or errors by employees or contractors. Because the techniques used by attackers to access or sabotage networks and compromise our systems and information change frequently and may not be recognized until launched against a target, we may be unable to anticipate these techniques. If an actual or perceived breach of network security occurs as a result of third-party action, including cyber-attacks or other intentional misconduct by computer hackers, error or malfeasance by insiders, or otherwise, it could adversely affect the market perception of our company and our solutions, and may expose us to the loss of information, litigation and possible liability. In addition, such a security breach could impair our ability to operate our business, including our ability to provide support services to our customers.

Our solutions may collect, filter and store customer data which may contain personal information, which raises privacy concerns and could result in us having liability or inhibit sales of our solutions.

Many federal, state and foreign government bodies and agencies have adopted or are considering adopting laws and regulations regarding the collection, use, and disclosure of personal information. Because many of the features of our solutions use, store, and report on customer data which may contain personal information from our customers, any inability to adequately address privacy concerns, or comply with applicable privacy laws, regulations and policies could, even if unfounded, result in liability to us, damage to our reputation, loss of sales, and harm to our business. Furthermore, the costs of compliance with, and other burdens imposed by, such laws, regulations and policies that are applicable to the businesses of our customers may limit the use and adoption of our solutions and reduce overall demand for them. Privacy concerns, whether or not valid, may inhibit market adoption of our solutions. For example, in the United States regulations such as the Gramm‑Leach‑Bliley Act, which protects and restricts the use of consumer credit and financial information, and HIPAA which regulates the use and disclosure of personal health information, impose significant security and data protection requirements and obligations on businesses that may affect the use and adoption of our solutions. Similarly, we hold a FedRAMP ~~certification~~authorization without which we would not be able to provide services and products to certain US federal entities.

In the past we have relied on U.S.-European Union Frameworks for transatlantic data flows such as the ~~EU-US~~EU-U.S. Privacy Shield, for which we self-certified under the ~~EU-US~~EU-U.S. Privacy Shield framework on October 5, 2016. However, Privacy Shield is currently being challenged in European Union (“EU”) courts, and on July 16, 2020, the Court of Justice of the EU issued a decision invalidating outright the EU-U.S. Privacy Shield framework,so there is some uncertainty regarding its future validity and our ability to rely on it for EU to USU.S. data transfers. We also rely on Standard Contractual Clauses (“SCCs”) authorized by the EU’s Data Protection Directive of 1995 for transatlantic data flows, but the SCCs are also being challenged in EU courts, so there is some uncertainty regarding our ability to rely on SCCs in the future for EU to US data transfer. Additionally, the EU’s General Data Protection Regulation, began to be enforced on May 25, 2018, and carries with it significantly increased responsibilities and potential penalties for companies that process EU personal data. We have seen increased customer attention surrounding EU Data Privacy. Furthermore, outside of the EU, we continue to see increased regulation of data privacy and security, including the adoption of more stringent subject matter specific state laws (such as the New York Department of Financial Services’ Cybersecurity Regulation and the new California Consumer Privacy Act of 2018 that ~~will be~~became effective January 1, 2020), national laws regulating the collection and use of data, and security and data breach obligations. The uncertainty and changes in the requirements of multiple jurisdictions may increase the cost of compliance, delay or reduce demand for our services, restrict our ability to offer services in certain locations, impact our customers’ ability to deploy our solutions in certain jurisdictions, or subject us to sanctions, by national data protection regulators, all of which could harm our business, financial condition and results of operations.

The regulatory framework for privacy issues is evolving worldwide, and various government and consumer agencies and public advocacy groups have called for new regulation and changes in industry practices. It is possible that new laws and regulations will be adopted in the United States and internationally, or existing laws and regulations may be interpreted in new ways, that would affect our business. Complying with any new regulatory requirements could force us to incur substantial costs or require us to change our business practices in a manner that could reduce our revenue or compromise our ability to effectively pursue our growth strategy.

Any failure or perceived failure to comply with laws and regulations or loss of certifications such as the FedRAMP ~~certification~~authorization may result in proceedings or actions against us by government entities or others, or could cause us to lose users and customers, which could potentially have an adverse effect on our business.

We operate in a highly competitive environment with large, established competitors, and our competitors may gain market share in the markets for our solutions that could adversely affect our business and cause our revenue to decline.

Our traditional competitors include security‑focused software vendors, such as Symantec Corporation (whose enterprise security business was recently acquired by Broadcom Inc.) and Cisco Systems, Inc. ~~(“Cisco”)~~, which offer software products that directly compete with our solutions. In addition to competing with these vendors directly for sales to customers, we compete with them for the opportunity to have our solutions bundled with the product offerings of our strategic partners. Our competitors could gain market share from us if any of these partners replace our solutions with the products of our competitors or if these partners more actively promote our competitors’ products over our solutions. In addition, software vendors who have bundled our solutions with theirs may choose to bundle their software with their own or other vendors’ software, or may limit our access to standard product interfaces and inhibit our ability to develop solutions for their platform.

We also face competition from large technology companies, such as Google Inc., Micro Focus International plc and Microsoft Corporation. These companies are increasingly developing and incorporating into their products features that compete on various levels with our solutions. Our competitive position could be adversely affected to the extent that our customers perceive that the functionality incorporated into these products would replace the need for our solutions or that buying from one vendor would provide them with increased leverage and purchasing power and a better customer experience. We also face competition from independent security vendors such as FireEye, Inc. that offer network security products and many smaller companies like Barracuda Networks, Inc. and Mimecast Ltd. that specialize in particular segments of the markets in which we compete.

Many of our competitors have greater financial, technical, sales, marketing or other resources than we do and consequently may have the ability to influence our customers to purchase their products instead of ours. Further consolidation within our industry or other changes in the competitive environment could also result in larger competitors that compete with us on several levels. In addition, acquisitions of smaller companies by large technology companies that specialize in particular segments of the markets in which we compete would result in increased competition from these large technology companies. If we are unsuccessful in responding to our competitors or to changing technological and customer demands, our competitive position and financial results could be adversely affected.

If we do not effectively expand and train our sales force, we may be unable to add new customers or increase sales to our existing customers and our business will be harmed.

We continue to be substantially dependent on our sales force to obtain new customers and to sell additional solutions to our existing customers. We believe that there is significant competition for sales personnel with the skills and technical knowledge that we require. Our ability to achieve significant revenue growth will depend, in large part, on our success in recruiting, training and retaining sufficient numbers of sales personnel. New hires require significant training and may take significant time before they achieve full ~~productivity.~~productivity, a period which may be prolonged due to the remote working arrangements we have adopted due to the COVID-19 pandemic. Our recent hires and planned hires may not become as productive as we expect, and we may be unable to hire or retain sufficient numbers of qualified individuals in the markets where we do business or plan to do business. If we are unable to hire and train sufficient numbers of effective sales personnel, or the sales personnel are not successful in obtaining new customers or increasing sales to our existing customer base, our business will be harmed.

Our sales cycle is long and unpredictable, and our sales efforts require considerable time and expense. As a result, our results are difficult to predict and may vary substantially from quarter to quarter, which may cause our operating results to fluctuate.

We sell our security and compliance offerings primarily to enterprise IT departments that are managing a growing set of user and compliance demands, which has increased the complexity of customer requirements to be met and confirmed in the sales cycle. Increasingly, we have found that security, legal and compliance departments are involved in testing, evaluating and finally approving purchases, which has also made the sales cycle longer and less predictable. We may not be

able to accurately predict or forecast the timing of sales, which makes our future revenue difficult to predict and could cause our results to vary significantly. In addition, we might devote substantial time and effort to a particular unsuccessful sales effort, and as a result we could lose other sales opportunities or incur expenses that are not offset by an increase in revenue, which could harm our business.

Because our long-term success depends, in part, on our ability to expand the sales of our platform to our customers located outside of the United States, our business will be increasingly susceptible to risks associated with international operations.

One key element of our growth strategy is to develop a worldwide customer base and expand our operations worldwide, such as by adding employees, offices and customers internationally, particularly in Europe and Asia.

Operating in international markets requires significant resources and management attention and will subject us to regulatory, economic, political and competitive risks and competition that are different from those in the United States.

In addition, our international operations may fail to succeed due to other risks inherent in operating businesses internationally, including:

In addition, the current U.S. administration has recently instituted or proposed changes to foreign trade policy including the negotiation or termination of trade agreements, the imposition of tariffs on products imported from certain countries, economic sanctions on individuals, corporations or countries and other government regulations affecting trade between the United States and other countries in which we do business. New or increased tariffs and other changes in U.S. trade policy could trigger retaliatory actions by affected countries, and certain foreign governments have instituted or are

considering imposing trade sanctions on certain U.S. manufactured goods. The escalation of protectionist or retaliatory trade measures in either the United States or any other countries in which we do business, such as a change in tariff structures, export compliance or other trade policies, may increase the cost of, or otherwise interfere with, conducting our business.

Our failure to manage any of these risks successfully could harm our existing and future international operations and seriously impair our overall business.

If we are unable to enhance our existing solutions and develop new solutions, our growth will be harmed, and we may not be able to achieve profitability.

Our ability to attract new customers and increase revenue from existing customers will depend in large part on our ability to enhance and improve our existing solutions and to introduce new solutions. The success of any enhancement or new solution depends on several factors, including the timely completion, introduction and market acceptance of the enhancement or solution. Any new enhancement or solution we develop or acquire may not be introduced in a timely or cost-effective manner and may not achieve the broad market acceptance necessary to generate significant revenue. If we are unable to successfully develop or acquire new solutions or enhance our existing solutions to meet customer requirements, we may not grow as expected and we may not achieve profitability.

We cannot be certain that our development activities will be successful or that we will not incur delays or cost overruns. Furthermore, we may not have sufficient financial resources to identify and develop new technologies and bring enhancements or new solutions to market in a timely and cost-effective manner. New technologies and enhancements could be delayed or cost more than we expect, and we cannot ensure that any of these solutions will be commercially successful if and when they are introduced.

If we are unable to cost-effectively scale or adapt our existing architecture to accommodate increased traffic, technological advances or changing customer requirements, our operating results could be harmed.

As our customer base grows, the number of users accessing our solutions over the Internet will correspondingly increase. Increased traffic could result in slow access speeds and response times. Since our customer agreements often include service availability commitments, slow speeds or our failure to accommodate increased traffic could result in breaches of our service level agreements or obligate us to issue service credits. In addition, the market for our solutions is characterized by rapid technological advances and changes in customer and regulatory requirements. In order to accommodate increased traffic and respond to technological advances and evolving customer and regulatory requirements, we expect that we will be required to make future investments in our network architecture. If we do not implement future upgrades to our network architecture cost-effectively, or if we experience prolonged delays or unforeseen difficulties in connection with upgrading our network architecture, our service quality may suffer, and our operating results could be harmed.

If we fail to manage our sales and distribution channels effectively or if our partners choose not to market and sell our solutions to their customers, our operating results could be adversely affected.

We have derived and anticipate that in the future we will continue to derive a substantial portion of the sales of our solutions through channel partners. In order to scale our channel program to support growth in our business, it is important that we continue to help our partners enhance their ability to independently sell and deploy our solutions. We may be unable to continue to successfully expand and improve the effectiveness of our channel sales program.

Our agreements with our channel partners are generally non-exclusive and some of our channel partners have entered, and may continue to enter, into strategic relationships with our competitors or are competitors themselves. Further, many of our channel partners have multiple strategic relationships and they may not regard us as significant for their businesses. Our channel partners may terminate their respective relationships with us with limited or no notice and with limited or no penalty, pursue other partnerships or relationships, or attempt to develop or acquire products or services that compete with our solutions. Our partners also may impair our ability to enter into other desirable strategic relationships. If our channel partners do not effectively market and sell our solutions, if they choose to place greater emphasis on products of their own or those offered by our competitors, or if they fail to meet the needs of our customers, our ability to grow our business and sell our solutions may be adversely affected. Similarly, the loss of a substantial number of our channel partners, and our possible inability to replace them, the failure to recruit additional channel partners, any reduction or delay in their sales of our solutions, or any conflicts between channel sales and our direct sales and marketing activities could materially and adversely affect our results of operations.

Because we recognize revenue from subscriptions over the term of the relevant service period, decreases or increases in sales are not immediately reflected in full in our operating results.

We recognize revenue from subscriptions over the term of the relevant service period, which typically range from one to three years, with some up to five years. As a result, most of our quarterly revenue from subscriptions results from agreements entered into during previous quarters. Consequently, a shortfall in demand for our solutions in any quarter may

not significantly reduce our subscription revenue for that quarter, but could negatively affect subscription revenue in future quarters. We may be unable to adjust our cost structure to compensate for this potential shortfall in subscription revenue. Accordingly, the effect of significant downturns in sales of subscriptions may not be fully reflected in our results of operations until future periods. Our subscription model also makes it difficult for us to rapidly increase our subscription revenue through additional sales in any period, as subscription revenue must be recognized over the term of the contract.

~~Interruptions~~Any interruptions or delays in services provided through our internal operations or by ~~third parties~~third-parties, including data center hosting facilities, network service providers, cloud computing platform providers and other hardware and software vendors, or from our inability to adequately plan for and manage service interruptions or infrastructure capacity requirements, could impair the delivery of our ~~service~~services and harm our business.

Our business operations are subject to interruption by natural disasters, fire, power shortages, pandemics (including the ongoing COVID-19 pandemic) and other events beyond our control. We rely on a number of third-party providers for data center hosting facilities, equipment, maintenance and other services, and the loss of, or problems with, one or more of these providers or our internal operations and infrastructure, including any potential disruptions due to significantly increased global demand on certain cloud-based systems during the COVID-19 pandemic, may impact our ability to properly maintain and repair our systems, thereby causing us to lose customers.

We currently serve our customers from third‑party data center facilities and resources located in the United States, Canada, Australia and Europe. We also rely on bandwidth providers, Internet service providers, mobile networks and other third-party IT service providers to operate our business and to deliver our solutions. Any damage to, or failure or disruption of, the systems of our third‑party providers could result in interruptions to our service. If for any reason our arrangement with one or more of our data centers is terminated, we could experience additional expense in arranging for new facilities and support. Our data center facilities providers have no obligations to renew their agreements with us on commercially reasonable terms, or at all. If we are unable to renew our agreements with the facilities providers on commercially reasonable terms or if in the future we add additional data center facility providers, we may experience costs or downtime in connection with the transfer to, or the addition of, new data center facilities. In addition, the failure of our data centers to meet our capacity requirements could result in interruptions in the availability of our solutions, impair the functionality of our solutions or impede our ability to scale our operations. As we continue to add data centers, restructure our data management plans, and increase capacity in existing and future data centers, we may move or transfer our data and our customers’ data. Despite precautions taken during such processes and procedures, any unsuccessful data transfers may impair the delivery of our service, and we may experience costs or downtime in connection with the transfer of data to other facilities. Similarly, some of our solutions’ features run or depend on IT services run by third parties, such as data feeds or public clouds, such as ~~AWS~~Amazon Web Services and Google Cloud, and an extended failure of such services might materially and adversely impact our ability to provide our services to our customers. Furthermore, some of our sales and business operations, such as CRM and billing and invoicing depend in part on third-party IT service providers and if those services were to be unavailable for extended periods of time it might materially and adversely affect our ability to operate.

We also depend on access to the Internet through third‑party bandwidth providers to operate our business. If we lose the services of one or more of our bandwidth providers, or if these providers experience outages, for any reason, we could experience disruption in delivering our solutions or we could be required to retain the services of a replacement bandwidth provider. Our business also depends on our customers having high-speed access to the Internet. Any Internet outages or delays could adversely affect our ability to provide our solutions to our customers.

Our operations rely heavily on the availability of electricity, which also comes from third-party providers. If we or the third-party data center facilities that we use to deliver our services were to experience a major power outage or if the cost of electricity were to increase significantly, our operations and financial results could be harmed. If we or our third‑party data centers were to experience a major power outage, we or they would have to rely on back-up generators, which might not work properly or might not provide an adequate power supply during a major power outage. Such a power outage could result in a significant disruption of our business.

For example, the COVID-19 pandemic and its adverse effects have become more prevalent in the locations where we conduct business and as a result, we have begun to experience more pronounced disruptions in our daily internal operations, including the closures of our physical domestic and international offices to promote the safety and security of our employees and to support the communities in which we operate. We have instituted remote working arrangements for employees where practicable, resulting in potential latent inefficiencies that may impact our operations.

Although we maintain crisis management and disaster response plans, including our business continuity plan, such events could make it difficult or impossible for us to deliver our services to our customers, could lead to lengthy interruptions in our service, and could decrease demand for our services. The occurrence of an extended interruption of our or third‑party services for any reason could result in lengthy interruptions in our services or in the delivery of customers’ email and require us to provide service credits, refunds, indemnification payments or other payments to our customers, and could also result in

the loss of customers. ~~While we have~~Additionally, any such system failures or outages could compromise our ability to conduct business ~~continuity~~or delay our financial reporting, which could materially affect our operating results and ~~disaster recovery plans and contingencies in place, there can be no assurance that they will be adequate in the event of an extended or severe disruption.~~financial condition.

Any failure to offer or the inability of our customers to access our high-quality technical support services may adversely affect our relationships with our customers and harm our financial results.

Once our solutions are deployed, our customers depend on accessing our support organization to resolve any technical issues relating to our ~~solutions.~~solutions, which may be impaired by interruptions caused by natural disasters, fire, power shortages, pandemics (including the ongoing COVID-19 pandemic) and other events beyond our control. In addition, our sales process is highly dependent on our solutions and business reputation and on strong recommendations from our existing customers. Any failure to maintain or the inability of our customers to access our high-quality technical support, or a market perception that we do not maintain high-quality support or the inability of our customers to access our high-quality support, could harm our reputation, adversely affect our ability to sell our solutions to existing and prospective customers, and harm our business, operating results and financial condition.

We offer technical support services with many of our solutions. We may be unable to respond quickly enough to accommodate short-term increases in customer demand for support services. We also may be unable to modify the format of our support services to compete with changes in support services provided by competitors. Increased customer demand for these services, without corresponding revenue, could increase costs and adversely affect our operating results.

We have outsourced a substantial portion of our worldwide customer support functions to third‑party service providers. If these companies experience financial difficulties, do not maintain sufficiently skilled workers and resources to satisfy our contracts, or otherwise fail to perform at a sufficient level, the level of support services to our customers may be significantly disrupted, which could materially harm our reputation and our relationships with these customers.

We believe that developing and maintaining awareness and integrity of our company and our brand are important to achieving widespread acceptance of our existing and future offerings and are important elements in attracting new customers. We believe that the importance of brand recognition will increase as competition in our market further intensifies. Successful promotion of our brand will depend on the effectiveness of our marketing efforts and on our ability to provide reliable and useful solutions at competitive prices. We plan to continue investing substantial resources to promote our brand, both domestically and internationally, but there is no guarantee that our brand development strategies will enhance the recognition of our brand. Some of our existing and potential competitors have well-established brands with greater recognition than we have. If our efforts to promote and maintain our brand are not successful, our operating results and our ability to attract and retain customers may be adversely affected. In addition, even if our brand recognition and loyalty increase, this may not result in increased use of our solutions or higher revenue.

In addition, independent industry analysts often provide reviews of our solutions, as well as those of our competitors, and perception of our solutions in the marketplace may be significantly influenced by these reviews. We have no control over what these industry analysts report, and because industry analysts may influence current and potential customers, our brand could be harmed if they do not provide a positive review of our solutions or view us as a market leader.

The steps we have taken to protect our intellectual property rights may not be adequate.

We rely on a combination of contractual rights, trademarks, trade secrets, patents and copyrights to establish and protect our intellectual property rights. These offer only limited protection, however, and the steps we have taken to protect our proprietary technology may not deter its misuse, theft or misappropriation. Any of our patents, copyrights, trademarks or other intellectual property rights may be challenged by others or invalidated through administrative process or litigation. Competitors may independently develop technologies or products that are substantially equivalent or superior to our solutions or that inappropriately incorporate our proprietary technology into their products. Competitors may hire our former employees who may misappropriate our proprietary technology or misuse our confidential information. Although we rely in part upon confidentiality agreements with our employees, consultants and other third parties to protect our trade secrets and other confidential information, those agreements may not effectively prevent disclosure of trade secrets and other confidential information and may not provide an adequate remedy in the event of misappropriation of trade secrets or unauthorized disclosure of confidential information. In addition, others may independently discover our trade secrets and confidential information, and in such cases, we could not assert any trade secret rights against such parties.

We might be required to spend significant resources to monitor and protect our intellectual property rights. We may initiate claims or litigation against third parties for infringement of our intellectual property rights or misappropriation of our trade secrets, or to establish the validity of our intellectual property rights. Any litigation, whether or not it is resolved in our favor, could result in significant expense to us and divert the efforts of our technical and management personnel, which may adversely affect our business, operating results and financial condition. Certain jurisdictions may not provide adequate legal

infrastructure for effective protection of our intellectual property rights. Changing legal interpretations of liability for unauthorized use of our solutions or lessened sensitivity by corporate, government or institutional users to refraining from intellectual property piracy or other infringements of intellectual property could also harm our business.

Our issued patents may not provide us with any competitive advantages or may be challenged by third parties, and our patent applications may never be granted at all. It is possible that innovations for which we seek patent protection may not be protectable. Additionally, the process of obtaining patent protection is expensive and time consuming, and we may not be able to prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. Given the cost, effort, risks and downside of obtaining patent protection, including the requirement to ultimately disclose the invention to the public, we may not choose to seek patent protection for certain innovations. However, such patent protection could later prove to be important to our business. Even if issued, there can be no assurance that any patents will have the coverage originally sought or adequately protect our intellectual property, as the legal standards relating to the validity, enforceability and scope of protection of patent and other intellectual property rights are uncertain. Any patents that are issued may be invalidated or otherwise limited, or may lapse or may be abandoned, enabling other companies to better develop products that

compete with our solutions, which could adversely affect our competitive business position, business prospects and financial condition.

We cannot assure you that the measures we have taken to protect our intellectual property will adequately protect us, and any failure to protect our intellectual property could harm our business.

Third parties claiming that we infringe their intellectual property rights could cause us to incur significant legal expenses and prevent us from selling our solutions.

Companies and individuals in the software and technology industries, including some of our current and potential competitors, own large numbers of patents, copyrights, trademarks and trade secrets and frequently enter into litigation based on allegations of infringement, misappropriation or other violations of intellectual property rights. In addition, many of these third parties have the capability to dedicate substantially greater resources to enforce their intellectual property rights and to defend claims that may be brought against them. The litigation may involve patent holding companies or other adverse patent owners who have no relevant product revenue and against whom our potential patents may provide little or no deterrence. We have received, and may in the future receive, notices that claim we have infringed, misappropriated or otherwise violated other parties’ intellectual property rights. We have been involved in litigation involving such allegations of infringement. To the extent we gain greater visibility, we could face a higher risk of being the subject of intellectual property infringement claims, which is not uncommon with respect to software technologies in general and information security technology in particular. There may be third‑party intellectual property rights, including issued or pending patents that cover significant aspects of our technologies or business methods. Any intellectual property claims, with or without merit, could be very time consuming, could be expensive to settle or litigate and could divert our management’s attention and other resources. These claims could also subject us to significant liability for damages, potentially including treble damages if we are found to have willfully infringed patents or copyrights. These claims could also result in our having to stop using technology found to be in violation of a third-party’s rights. We might be required to seek a license for the intellectual property, which may not be available on reasonable terms or at all. Even if a license were available, we could be required to pay significant royalties, which would increase our operating expenses. As a result, we may be required to develop alternative non-infringing technology, which could require significant effort and expense. If we cannot license or develop technology for any infringing aspect of our business, we would be forced to limit or stop sales of one or more of our solutions or features of our solutions and may be unable to compete effectively. Any of these results would harm our business, operating results and financial condition.

In addition, our agreements with customers and channel partners include indemnification provisions under which we agree to indemnify them for losses suffered or incurred as a result of claims of intellectual property infringement and, in some cases, for damages caused by us to property or persons. Large indemnity payments could harm our business, operating results and financial condition.

We rely on technology and intellectual property licensed from other parties, the failure or loss of which could increase our costs and delay or prevent the delivery of our solutions.

We utilize various types of software and other technology, as well as intellectual property rights, licensed from unaffiliated third parties in order to provide certain elements of our solutions. Any errors or defects in any third‑party technology could result in errors in our solutions that could harm our business. In addition, licensed technology and intellectual property rights may not continue to be available on commercially reasonable terms, or at all. While we believe that there are currently adequate replacements for the third‑party technology we use, any loss of the right to use any of this technology on commercially reasonable terms, or at all, could result in delays in producing or delivering our solutions until equivalent technology is identified and integrated, which delays could harm our business. In this situation we would be

required to either redesign our solutions to function with software available from other parties or to develop these components ourselves, which would result in increased costs. Furthermore, we might be forced to limit the features available in our current or future solutions. If we fail to maintain or renegotiate any of these technology or intellectual property licenses, we could face significant delays and diversion of resources in attempting to develop similar or replacement technology, or to license and integrate a functional equivalent of the technology.

Some of our solutions contain “open source” software, and any failure to comply with the terms of one or more of these open source licenses could negatively affect our business.

Some of our solutions are distributed with software licensed by its authors or other third parties under so-called “open source” licenses, which may include, by way of example, the GNU General Public License, or GPL, and the Apache License. Some of these licenses contain requirements that we make available source code for modifications or derivative works we create based upon the open source software, and that we license such modifications or derivative works under the terms of a particular open source license or other license granting third parties certain rights of further use. By the terms of

certain open source licenses, we could be required to release the source code of our proprietary software, and to make our proprietary software available under open source licenses, if we combine our proprietary software with open source software in a certain manner. In the event that portions of our proprietary software are determined to be subject to an open source license, we could be required to publicly release the affected portions of our source code, re-engineer all or a portion of our technologies, or otherwise be limited in the licensing of our technologies, each of which could reduce or eliminate the value of our technologies and solutions. In addition to risks related to license requirements, usage of open source software can lead to greater risks than use of third-party commercial software, as open source licensors generally do not provide warranties or controls on the origin of the software. We have established processes to help alleviate these risks, including a review process for screening requests from our development organizations for the use of open source software, but we cannot be sure that all open source software is submitted for approval prior to use in our solutions, that our programmers have not incorporated open source software into our proprietary solutions and technologies or that they will not do so in the future. In addition, many of the risks associated with usage of open source software cannot be eliminated, and could, if not properly addressed, negatively affect our business.

Governmental regulations affecting the export of certain of our solutions could negatively affect our business.

Some of our products are subject to U.S. export controls, and we incorporate encryption technology into certain of our products. These encryption products and the underlying technology may be exported outside the United States only with the required export authorizations, including by license, a license exception or other appropriate government authorizations, including the filing of an encryption registration. Governmental regulation of encryption technology and regulation of imports or exports, or our failure to obtain required import or export approval for our products, could harm our international sales and adversely affect our revenue.

Failure to comply with such regulations, whether by us or companies that we have acquired, in the future could result in penalties, costs, and restrictions on export privileges, which could also harm our operating results.

We have, and may further, expand through acquisitions of, or investments in, other companies, which may divert our management’s attention, dilute our stockholders’ ownership interests and consume corporate resources that otherwise would be necessary to sustain and grow our business.

We have made multiple acquisitions in the past, and our business strategy may, from time to time, continue to include acquiring complementary products, technologies or businesses. We also may enter into relationships with other businesses in order to expand our solutions, which could involve preferred or exclusive licenses, additional channels of distribution, or investments by or between the two parties. Negotiating these transactions can be time consuming, difficult and expensive, and our ability to close these transactions may be subject to third‑party approvals, such as government regulation, which are beyond our control. Consequently, we can make no assurance that these transactions, once undertaken and announced, will close.

These transactions may result in unforeseen operating difficulties and expenditures. In particular, we may encounter difficulties assimilating or integrating the businesses, technologies, products, personnel or operations of acquired companies, particularly if the key personnel of the acquired business choose not to work for us, and we may have difficulty retaining the customers of any acquired business. Acquisitions may also disrupt our ongoing business, divert our resources and require significant management attention that would otherwise be available for development of our business. Any acquisition or investment could expose us to unknown liabilities.

In addition, as of ~~September~~June 30, ~~2019,~~ 2020, we had ~~$667.8~~$848.0 million in goodwill and intangible assets, net of accumulated amortization, recorded on our balance sheet. We will incur expenses related to the amortization of intangible assets and we

may in the future need to incur charges with respect to the impairment of goodwill or intangible assets, which could adversely affect our operating results. Moreover, we cannot assure you that the anticipated benefits of any acquisition or investment would be realized or that we would not be exposed to unknown liabilities. In connection with these types of transactions, we may issue additional equity securities that would dilute our stockholders’ ownership interests, use cash that we may need in the future to operate our business, incur debt on terms unfavorable to us or that we are unable to repay, incur large charges or substantial liabilities, encounter difficulties integrating diverse business cultures, and become subject to adverse tax consequences, substantial depreciation or deferred compensation charges. These challenges related to acquisitions or investments could adversely affect our business, operating results and financial condition.

If we are unable to attract and retain qualified employees, lose key personnel, fail to integrate replacement personnel successfully, or fail to manage our employee base effectively, we may be unable to develop new and enhanced solutions, effectively manage or expand our business, or increase our revenue.

Our future success depends upon our ability to recruit and retain key management, technical, sales, marketing, finance, and other critical personnel. Competition for qualified management, technical and other personnel is intense, and we may not be successful in attracting and retaining such personnel. If we fail to attract and retain qualified employees, our ability to grow our business could be harmed. Our officers and other key personnel are employees-at-will, and we cannot assure you that we will be able to retain them. Competition for people with the specific skills that we require is significant. In order to attract and retain personnel in a competitive marketplace, we believe that we must provide a competitive compensation package, including cash and equity‑based compensation. Volatility in our stock price may from time to time adversely affect our ability to recruit or retain employees. If we lose the services of our senior management or other key personnel, including due to illness resulting from COVID-19, if we are unable to hire and retain qualified employees, or conversely, if we fail to manage employee performance or reduce staffing levels when required by market conditions, our business and operating results could be adversely affected.

In addition, hiring, training, and successfully integrating replacement personnel could be time consuming, may cause additional disruptions to our operations, and may be unsuccessful, which could negatively impact future revenue.

Changes in laws and/or regulations related to the Internet or changes in the Internet infrastructure itself may diminish the demand for our solutions, and could have a negative impact on our business.

The future success of our business depends upon the continued use of the Internet as a primary medium for commerce, communication and business applications. Federal, state or foreign government bodies or agencies have in the past adopted, and may in the future adopt, laws or regulations affecting data privacy and the use of the Internet as a commercial medium. Changes in these laws or regulations could require us to modify our solutions in order to comply with these changes. In addition, government agencies or private organizations may begin to impose taxes, fees or other charges for accessing the Internet or commerce conducted via the Internet. These laws or charges could limit the growth of Internet‑related commerce or communications generally, result in a decline in the use of the Internet and the viability of Internet‑based applications such as ours and reduce the demand for our solutions.

The legal and regulatory framework also drives demand for our solutions. Our customers are subject to laws, regulations and internal policies that mandate how they process, handle, store, use and transmit a variety of sensitive data and communications. These laws and regulations are subject to revision, change and interpretation at any time, and any such change could either help or hurt the demand for our solutions. We cannot be sure that the legal and regulatory framework in any given jurisdiction will be favorable to our business or that we will be able to sustain or grow our business if there are any adverse changes to these laws and regulations.

If we are required to collect sales and use taxes on the solutions we sell, we may be subject to liability for past sales and our future sales may decrease.

State and local taxing jurisdictions have differing rules and regulations governing sales and use taxes, and these rules and regulations are subject to varying interpretations that may change over time. In particular, the applicability of sales taxes to our subscription services in various jurisdictions is unclear. It is possible that we could face sales tax audits and that our liability for these taxes could exceed our estimates as state tax authorities could still assert that we are obligated to collect additional amounts as taxes from our customers and remit those taxes to those authorities. We could also be subject to audits with respect to state and international jurisdictions for which we have not accrued tax liabilities. A successful assertion that we should be collecting additional sales or other taxes on our services in jurisdictions where we have not historically done so and do not accrue for sales taxes could result in substantial tax liabilities for past sales, discourage customers from purchasing our application or otherwise harm our business and operating results.

~~Adverse conditions in the national and global economies and financial markets may adversely affect our business and financial results.~~

Adverse macroeconomic conditions could negatively affect our customers, thereby impacting our business, operating results or financial condition. Challenging economic conditions worldwide have from time to time contributed, and may continue to contribute, to slowdowns in the information technology industry, resulting in reduced demand for our solutions as a result of continued constraints on IT-related capital spending by our customers and increased price competition for our solutions. Moreover, we target some of our solutions to the financial services industry and therefore if there is consolidation in that industry, or layoffs, or lack of funding for IT purchases, our business may suffer. If economic conditions deteriorate, our business, financial condition and operating results could be materially and adversely affected.

Our business is subject to the risks of earthquakes, fire, power outages, floods and other catastrophic events, and to interruption by manmade problems such as terrorism.

Natural disasters or other catastrophic events may cause damage or disruption to our operations, international commerce and the global economy, and thus could have a strong negative effect on us. We have significant operations in the Silicon Valley area of Northern California, a region known for seismic ~~activity.~~activity and wildfires. A major earthquake, wildfire or other natural disaster, fire, act of terrorism or other catastrophic event that results in the destruction or disruption of any of our critical business operations or information technology systems could severely affect our ability to conduct normal business operations and, as a result, our future operating results could be harmed. These negative events could make it difficult or impossible for us to deliver our services to our customers, and could decrease demand for our services. Because we do not carry earthquake insurance for direct quake‑related losses, and significant recovery time could be required to resume operations, our financial condition and operating results could be materially adversely affected in the event of a major earthquake or catastrophic event.

A portion of our revenue is generated by sales to government entities, which are subject to a number of challenges and risks.

Sales to U.S. and foreign federal, state and local governmental agency customers have accounted for a portion of our revenue in past periods, and we may in the future increase sales to government entities. Sales into government entities are subject to a number of risks. Selling to government entities can be highly competitive, expensive and time consuming, often requiring significant upfront time and expense without any assurance that we will win a sale. We have invested in the creation of a cloud offering that has been certified under both the Federal Information Security Management Act and the Federal Risk and Authorization Management Program for government usage but we cannot be sure that we will continue to sustain or renew this certification, that the government will continue to mandate such certification or that other government agencies or entities will use this cloud offering. Government demand and payment for our solutions may be impacted by public sector budgetary cycles and funding authorizations, with funding reductions or delays adversely affecting public sector demand for our solutions. Government entities may have contractual or other legal rights to terminate contracts with our distributors and resellers for convenience or due to a default, and any such termination may adversely impact our future results of operations. For example, if the distributor receives a significant portion of its revenue from sales to such governmental entity, the financial health of the distributor could be substantially harmed, which could negatively affect our future sales to such distributor. Governments routinely investigate and audit government contractors’ administrative processes, and any unfavorable audit could result in the government refusing to continue buying our solutions, a reduction of revenue or fines or civil or criminal liability if the audit uncovers improper or illegal activities. Any such penalties could adversely impact our results of operations in a material way.

If we fail to maintain an effective system of internal controls, our ability to produce timely and accurate financial statements or comply with applicable regulations could be impaired.

As a public company, we are subject to the reporting requirements of the Exchange Act, the Sarbanes‑Oxley Act of 2002 (the “Sarbanes-Oxley Act”), and the rules and regulations of the NASDAQ Global Market. We expect that the requirements of these rules and regulations will continue to increase our legal, accounting and financial compliance costs, make some activities more difficult, time consuming and costly, and place significant strain on our personnel, systems and resources.

The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal control over financial reporting. We are continuing to develop and refine our disclosure controls and other procedures that are designed to ensure that information required to be disclosed by us in the reports that we file with the SEC, is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that information required to be disclosed in reports under the Exchange Act is accumulated and communicated to our principal executive and financial officers.

Our current controls and any new controls that we develop may become inadequate because of changes in conditions in our business. In addition, because we have acquired companies in the past and may continue to do so in the future, we will also need to expend resources to integrate the controls of these acquired entities with ours. Further, weaknesses in our internal controls may be discovered in the future. Any failure to develop or maintain effective controls, or any difficulties encountered in their implementation or improvement, could harm our operating results or cause us to fail to meet our reporting obligations and may result in a restatement of our financial statements for prior periods. Any failure to implement and maintain effective internal controls also could adversely affect the results of periodic management evaluations and annual independent registered public accounting firm report regarding the effectiveness of our internal control over financial reporting that we are required to include in our Annual Report on Form 10-K under Section 404 of the Sarbanes‑Oxley Act. Ineffective disclosure

controls and procedures and internal control over financial reporting could also cause investors to lose confidence in our reported financial and other information, which would likely have a negative effect on the trading price of our common stock.

In order to maintain and improve the effectiveness of our disclosure controls and procedures and internal control over financial reporting, we have expended, and anticipate that we will continue to expend, significant resources, including accounting‑related costs, and provide significant management oversight. Any failure to maintain the adequacy of our internal controls, or consequent inability to produce accurate financial statements on a timely basis, could increase our operating costs and could materially impair our ability to operate our business. In the event that we or our independent registered public accounting firm are not able to complete the work required under Section 404 of the Sarbanes-Oxley Act on a timely basis, or we are not able to demonstrate compliance with Section 404, we could be subject to late filings of our annual and quarterly reports, restatements of consolidated financial statements or other corrective disclosure, and, investors may lose confidence in our operating results and our stock price could decline. In addition, if we are unable to continue to meet these requirements, we may not be able to remain listed on the NASDAQ Global Market.

We may not be able to utilize a significant portion of our net operating loss or research tax credit carryforwards, which could adversely affect our profitability.

As of ~~September~~June 30, ~~2019,~~2020, we had federal and state net operating loss carryforwards due to prior period losses, some of which if not utilized will continue to expire in ~~2019~~2020 for federal and state purposes. We also have federal research tax credit carryforwards, which will continue to expire in ~~2019.~~2020. These net operating loss and research tax credit carryforwards could expire unused and be unavailable to offset future income tax liabilities, which could adversely affect our profitability.

In addition, under Sections 382 and 383 of the Internal Revenue Code of 1986, as amended, our ability to utilize net operating loss carryforwards or other tax attributes, such as research tax credits, in any taxable year may be limited if we experience an “ownership change.” An “ownership change” generally occurs if one or more stockholders or groups of stockholders who own at least 5% of our stock increase their ownership by more than 50 percentage points over their lowest ownership percentage within a rolling three-year period. Similar rules may apply under state tax laws.

Future issuances of our stock could cause an “ownership change.” It is possible that any future ownership change could have a material effect on the use of our net operating loss carryforwards or other tax attributes, which could adversely affect our profitability.

~~Our stock price has been volatile in the past and may be subject to volatility in the future.~~

The trading price of our common stock has been volatile historically, and is likely to continue to be subject to wide fluctuations in response to various factors described below. Factors affecting the market price of our securities include:

In addition, the stock markets in general, and the NASDAQ Global Market in particular, have experienced substantial price and volume volatility that is often seemingly unrelated to the operating results of any particular companies. Moreover, if the market for technology stocks, especially security and cloud computing-related stocks, or the stock market in

general experiences uneven investor confidence, the market price of our common stock could decline for reasons unrelated to our business, operating results or financial condition. The market price for our stock might also decline in reaction to events that affect other companies within, or outside, our industry, even if these events do not directly affect us. Some companies that have experienced volatility in the trading price of their stock have been subject of securities litigation. If we are the subject of such litigation, it could result in substantial costs and a diversion of management’s attention and resources.Convertible Senior Notes

In August 2019, we completed an offering of $920.0 million aggregate principal amount of 0.25% Convertible Senior Notes due 2024 (the “2024 Notes”). As a result of this convertible notes offering, we incurred $920.0 million principal amount of indebtedness, the principal amount of which we may be required to pay at maturity in 2024, upon an event of default (as defined in the indenture governing the 2024 Notes (the “indenture”)), or, upon the occurrence of a make-whole fundamental change (as defined in the indenture). There can be no assurance that we will be able to repay this indebtedness when due, or that we will be able to refinance this indebtedness on acceptable terms or at all. In addition, this indebtedness could, among other things:

Conversion of our 2024 Notes may affect the price of our common stock and the value of the 2024 Notes.

The conversion of some or all of our 2024 Notes may dilute the ownership interest of existing stockholders to the extent we deliver shares of common stock upon conversion. Holders of the 2024 Notes will be able to convert them only upon the satisfaction of certain conditions prior to April 15, 2024. Upon conversion, holders of the 2024 Notes will receive cash, shares of common stock or a combination of cash and shares of common stock, at our election. Any sales in the public market of shares of common stock issued upon conversion of the 2024 Notes could adversely affect the trading price of our common stock and the value of the 2024 Notes.

Servicing our debt will require a significant amount of cash. We may not have sufficient cash flow from our business to pay our substantial debt, and we may not have the ability to raise the funds necessary to settle conversions of the 2024 Notes in cash or to repurchase the 2024 Notes upon a fundamental change, which could adversely affect our business and results of operations.

Our ability to make scheduled payments of the principal of, to pay interest on, or to refinance our indebtedness, including the amounts payable under the 2024 Notes, depends on our future performance, which is subject to economic, financial, competitive, and other factors beyond our control. Our business may not continue to generate cash flow from operations in the future sufficient to service our indebtedness and make necessary capital expenditures. If we are unable to generate such cash flow, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt, or obtaining additional equity capital on terms that may be onerous or highly dilutive. Our ability to refinance our indebtedness will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations.

Further, holders of the 2024 Notes have the right to require us to repurchase all or a portion of their 2024 Notes upon the occurrence of a “fundamental change” (as defined in the indenture) before the maturity date at a repurchase price equal to 100% of the principal amount of the 2024 Notes to be repurchased, plus accrued and unpaid interest, if any. In addition, upon conversion of the 2024 Notes, unless we elect to deliver solely shares of our common stock to settle such conversion (other than paying cash in lieu of delivering any fractional share), we will be required to make cash payments in respect of the 2024 Notes being converted. However, we may not have enough available cash or be able to obtain financing at the time we are required to make repurchases of 2024 Notes surrendered therefor or pay cash with respect toof 2024 Notes being converted.

The conditional conversion feature of the 2024 Notes, when triggered, may adversely affect our financial condition and operating results.

In the event the conditional conversion feature of the 2024 Notes is triggered, holders of the 2024 Notes will be entitled to convert their 2024 Notes at any time during specified periods at their option. If one or more holders elect to

convert their 2024 Notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional share), we would be required to settle a portion or all of our conversion obligation in cash, which could adversely affect our liquidity. In addition, even if holders of 2024 Notes do not elect to convert their 2024 Notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the 2024 Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital.

The accounting ~~method~~ for convertible debt securities that may be settled in cash, such as the 2024 Notes, could have a material effect on our reported financial results.

Under Accounting Standards Codification 470-20, Debt with Conversion and Other Options (“ASC 470-20”), an entity must separately account for the liability and equity components of the convertible debt instruments (such as the 2024 Notes) that may be settled entirely or partially in cash upon conversion in a manner that reflects the issuer’s economic interest cost. The effect of ASC 470-20 on the accounting for the 2024 Notes is that the equity component is required to be included in the additional paid-in capital section of stockholders’ equity on our condensed consolidated balance sheet at the issuance date and the value of the equity component would be treated as debt discount for purposes of accounting for the debt component of the 2024 Notes. As a result, we will be required to record a greater amount of non-cash interest expense as a result of the amortization of the discounted carrying value of the 2024 Notes to their face amount over the term of the 2024 Notes. We will report larger net losses (or lower net income) in our financial results because ASC 470-20 will require interest to include both the amortization of the debt discount and the instrument’s non-convertible coupon interest rate, which could adversely affect our reported or future financial results, the trading price of our common stock and the trading price of the 2024 Notes.

The capped call transactions may affect the value of the 2024 Notes and our common stock.

In connection with the pricing of the 2024 Notes, we entered into capped call transactions with certain financial institutions. The capped call transactions are expected generally to reduce or offset the potential dilution upon conversion of the 2024 Notes and/or offset any cash payments we are required to make in excess of the principal amount of converted 2024 Notes, as the case may be, with such reduction and/or offset subject to a cap.

In connection with establishing their initial hedges of the capped call transactions, these financial institutions or their respective affiliates likely purchased shares of our common stock and/or entered into various derivative transactions with respect to our common stock concurrently with or shortly after the pricing of the 2024 Notes. These financial institutions or

their respective affiliates may modify their hedge positions by entering into or unwinding various derivatives with respect to our common stock and/or purchasing or selling our common stock or other securities of ours in secondary market transactions following the pricing of the 2024 Notes and prior to the maturity of the 2024 Notes (and are likely to do so during any observation period related to a conversion of 2024 Notes). This activity could also cause or avoid an increase or a decrease in the market price of our common stock or the 2024 Notes.

The potential effect, if any, of these transactions and activities on the price of our common stock or the 2024 Notes will depend in part on market conditions and cannot be ascertained at this time. Any of these activities could adversely affect the value of our common stock.

We are subject to counterparty risk with respect to the capped call transactions.

The counterparties to the capped call transactions we entered into in connection with our 2024 Notes are financial institutions, and we will be subject to the risk that one or more of these counterparties may default or otherwise fail to perform, or may exercise certain rights to terminate, their obligations under the capped call agreements. Our exposure to the credit risk of these counterparties will not be secured by any collateral.

If any of these counterparties to one or more of the capped call transactions becomes subject to insolvency proceedings, we will become an unsecured creditor in those proceedings with a claim equal to our exposure at the time under such transaction. Our exposure will depend on many factors but, generally, our exposure will increase if the market price or the volatility of our common stock increases. In addition, upon a default or other failure to perform, or a termination of obligations, by a counterparty, we may suffer less relief from dilution than we currently anticipate with respect to our common stock. We can provide no assurances as to the financial stability or viability of these counterparties.

60Our stock price has been volatile in the past and may be subject to volatility in the future.

In addition, the stock markets in general and the NASDAQ Global Market in particular, have experienced substantial price and volume volatility that is often seemingly unrelated to the operating results of any particular companies. Moreover, if the market for technology stocks, especially security and cloud computing-related stocks, or the stock market in general experiences uneven investor confidence, the market price of our common stock could decline for reasons unrelated to our business, operating results or financial condition. The market price for our stock might also decline in reaction to events that affect other companies within, or outside, our industry, even if these events do not directly affect us. Some companies that have experienced volatility in the trading price of their stock have been subject of securities litigation. If we are the subject of such litigation, it could result in substantial costs and a diversion of management’s attention and resources. Furthermore, market volatility arising from the COVID-19 pandemic may lead to increased shareholder activism if we experience a market valuation that they believe is not reflective of our intrinsic value. Activist campaigns that contest or

conflict with our strategic direction or seek changes in the composition of our board of directors could have an adverse effect on our operating results and financial condition.

Anti-takeover provisions contained in our certificate of incorporation and bylaws, as well as provisions of Delaware law, and provisions in the indenture for our 2024 Notes, could impair a takeover attempt.

Our certificate of incorporation and bylaws contain provisions that could have the effect of rendering more difficult, delaying or preventing an acquisition of our company deemed undesirable by our board of directors. These provisions could also reduce the price that investors might be willing to pay in the future for shares of our common stock and result in the market price of our common stock being lower than it would be without these provisions. Our corporate governance documents include provisions:

In addition, if a fundamental change occurs prior to the maturity date of the 2024 Notes, holders of the 2024 Notes will have the right, at their option, to require us to repurchase all or a portion of their 2024 Notes. If a “make-whole fundamental change” (as defined in the indenture) occurs prior to the maturity date, we will in some cases be required to increase the conversion rate of the 2024 Notes for a holder that elects to convert its 2024 Notes in connection with such make-whole fundamental change. Furthermore, the indenture prohibits us from engaging in certain mergers or acquisitions unless, among other things, the surviving entity assumes our obligations under the 2024 Notes.

These provisions, alone or together, could frustrate, delay or prevent hostile takeovers and changes in control or changes in our management.

As a Delaware corporation, we are also subject to provisions of Delaware law, including Section 203 of the Delaware General Corporation law, which prevents some stockholders holding more than 15% of our outstanding common stock from engaging in certain business combinations merging or combining with us without approval of the holders of a substantial majority of all of our outstanding common stock.

Our failure to raise additional capital or generate the significant capital necessary to expand our operations and invest in new solutions could reduce our ability to compete and could harm our business.

We may need to raise additional funds, and we may not be able to obtain additional debt or equity financing on favorable terms, if at all. If we raise additional equity financing, our stockholders may experience significant dilution of their ownership interests and the per share value of our common stock could decline. If we issue equity securities in any additional financing, the new securities may have rights and preferences senior to our common stock. If we engage in debt financing, we may be required to accept terms that restrict our ability to incur additional indebtedness and force us to maintain specified liquidity or other ratios. The trading prices for our common stock and the stock of other technology companies have been highly volatile as a result of the COVID-19 pandemic, which may reduce our ability to access capital on favorable terms or at all. In addition, a recession, depression or other sustained adverse market event resulting from the spread of COVID-19 could materially and adversely affect our business and the value of our common stock. If we need additional capital and cannot raise it on acceptable terms, we may not be able to, among other things:

Future sales of our common stock in the public market could lower the market price for our common stock and adversely impact the trading price of our common stock.

In the future, we may sell additional shares of our common stock to raise capital. In addition, a substantial number of shares of our common stock is reserved for issuance upon the conversion of the 2024 Notes, exercise of stock options, the vesting of restricted stock units and restricted stock pursuant to our employee benefit plans, and for purchase by employees under our employee stock purchase plan. We cannot predict the size of future issuances or the effect, if any, that they may have on the market price for our common stock. The issuance and sale of substantial amounts of common stock, or the perception that such issuances and sales may occur, could adversely affect the market price of our common stock and impair our ability to raise capital through the sale of additional equity securities.

We do not anticipate paying cash dividends, and accordingly, stockholders must rely on stock appreciation for any return on their investment.

We do not anticipate paying cash dividends on our common stock in the future. As a result, only appreciation of the price of our common stock will provide a return to our stockholders. Investors seeking cash dividends should not invest in our common stock.

~~None.~~On June 4, 2020, the Company issued 11,053 shares of its common stock to the former sole shareholder of The Defence Works Limited, in connection with the consummation of the Company's acquisition of The Defence Works Limited. The shares were not registered under the Securities Act of 1933, as amended (“Securities Act”) in reliance upon the exemption from registration pursuant to Regulation S of the Securities Act because the former sole shareholder is an individual based outside of the U.S.

Incorporated by Reference
Exhibit No.

Exhibit Title

Form

File No.

Filing Date

Exhibit No.

4.01

Indenture dated August 23, 2019 between Proofpoint, Inc. and Wells Fargo Bank, National Association (including the form of 0.25% Convertible Senior Notes due 2024).

8-K

001-35506

August 23, 2019

4.1

31.01
*
Certification of Periodic Report by Chief Executive Officer under Section 302 of the Sarbanes-Oxley Act of 2002

31.02
*
Certification of Periodic Report by Chief Financial Officer under Section 302 of the Sarbanes-Oxley Act of 2002

32.01
**
Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.02
**
Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS
**
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
**
XBRL Taxonomy Extension Schema Document.

101.CAL
**
XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF
**
XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB
**
XBRL Taxonomy Extension Label Linkbase Document.

101.PRE
**
XBRL Taxonomy Extension Presentation Linkbase Document.

104

The cover page from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019, formatted in Inline XBRL (included in Exhibit 101)

			Incorporated by Reference
Exhibit No.		Exhibit Title	Form	File No.	Filing Date	Exhibit No.


31.01	*	Certification of Periodic Report by Chief Executive Officer under Section 302 of the Sarbanes-Oxley Act of 2002

31.02	*	Certification of Periodic Report by Chief Financial Officer under Section 302 of the Sarbanes-Oxley Act of 2002

32.01	**	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.02	**	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS	**	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	**	XBRL Taxonomy Extension Schema Document.

101.CAL	**	XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF	**	XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB	**	XBRL Taxonomy Extension Label Linkbase Document.

101.PRE	**	XBRL Taxonomy Extension Presentation Linkbase Document.

104		The cover page from the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, formatted in Inline XBRL (included in Exhibit 101)

**These exhibits are furnished with this Quarterly Report on Form 10-Q and are not deemed filed with the Securities and Exchange Commission and are not incorporated by reference in any filing of Proofpoint, Inc. under the Securities Act of 1933 or the Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language in such filings.

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, in the City of Sunnyvale, State of California, on ~~October~~July 31, ~~2019.~~2020.

Delaware		51-0414846
(State or other jurisdiction of incorporation or organization)		(I.R.S. employer identification no.)
892 Ross Drive Sunnyvale, California		94089
(Address of principal executive offices)		(Zip Code)


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock , $0.0001 par value per share,	PFPT	NASDAQ Global Select Market

		Page
PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED):		3

Condensed Consolidated Balance Sheets as of ~~September~~June 30, ~~2019~~2020 and December 31, ~~2018~~2019		3

Condensed Consolidated Statements of Operations for the Three and ~~Nine~~Six Months Ended ~~September~~June 30, ~~2019~~2020 and ~~2018~~2019		4

Condensed Consolidated Statements of Comprehensive Loss for the Three and ~~Nine~~Six Months Ended ~~September,30~~June 30, 2020 and 2019 ~~and 2018~~		5

Condensed Consolidated Statements of Stockholders' Equity for the Three and ~~Nine~~Six Months Ended ~~September~~June 30, ~~2019~~2020 and ~~2018~~2019		6

Condensed Consolidated Statements of Cash Flows for the ~~Nine~~Six Months Ended ~~September~~June 30, ~~2019~~2020 and ~~2018~~2019		8

Notes to Condensed Consolidated Financial Statements		10

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS		3029

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK		43

ITEM 4. CONTROLS AND PROCEDURES		44

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS		45

ITEM 1A. RISK FACTORS		45

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS		6263

ITEM 3. DEFAULTS UPON SENIOR SECURITIES		6263

ITEM 4. MINE SAFETY DISCLOSURES		6263

ITEM 5. OTHER INFORMATION		6263

ITEM 6. EXHIBITS		6364

SIGNATURES		6465

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Total revenue	$	227,385		$	184,202		$	644,869		$	525,183
Net loss	$	(44,284	)	$	(40,733	)	$	(106,510	)	$	(96,907	)
Basic and diluted net loss per share	$	(0.79	)	$	(0.78	)	$	(1.91	)	$	(1.89	)

	Shares subject to Options Outstanding
	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Balance at December 31, 2018		1,255		$	28.67		4.77	$	69,224
Options assumed per business acquisition		34			3.07
Options exercised		(219	)		16.87
Options forfeited and expired		(1	)		5.94
Balance at September 30, 2019		1,069		$	30.30		4.33	$	105,580

Large accelerated filer	☑	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

	Three months ended September 30, 2019
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity
Balances at June 30, 2019		56,043		$	6	$	1,177,800		$	2		$	(652,520	)	$	525,288
Net loss		—			—		—			—			(44,340	)		(44,340	)
Unrealized gain on short-term investments		—			—		—			1			—			1
Stock-based compensation expense		—			—		41,732			—			—			41,732
Common stock issued		218					827			—			—			827
Tax withholding upon vesting of restricted stock awards		(57	)		—		(6,931	)		—			—			(6,931	)
Embedded conversion feature on convertible senior notes (Note 8)		—			—		163,023			—			—			163,023
Purchase of capped calls (Note 8)		—			—		(84,871	)		—			—			(84,871	)
Balances at September 30, 2019		56,204		$	6	$	1,291,580		$	3		$	(696,860	)	$	594,729



	Nine months ended September 30, 2019
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive			Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)			Deficit			Equity
Balances at December 31, 2018		55,149		$	6	$	1,107,953		$	(7	)	$	(595,418	)	$	512,534
Cumulative effect of adjustment from adoption of ASC 842		—			—		—			—			89			89
Net loss		—			—		—			—			(101,531	)		(101,531	)
Unrealized gain on short-term investments		—			—		—			10			—			10
Stock-based compensation expense		—			—		118,674			—			—			118,674
Acquisition of Meta Networks, Ltd. (Note 3)		72			—		446			—			—			446
Common stock issued		1,348			—		28,170			—			—			28,170
Tax withholding upon vesting of restricted stock awards		(365	)		—		(41,815	)		—			—			(41,815	)
Embedded conversion feature on convertible senior notes (Note 8)		—			—		163,023			—			—			163,023
Purchase of capped calls (Note 8)		—			—		(84,871	)		—			—			(84,871	)
Balances at September 30, 2019		56,204		$	6	$	1,291,580		$	3		$	(696,860	)	$	594,729

	Six months ended June 30, 2020
	Common Stock					Additional Paid-In			Accumulated Other Comprehensive		Accumulated			Total Stockholders’
	Shares			Amount		Capital			Income (Loss)		Deficit			Equity
Balances at December 31, 2019		56,784		$	6	$	1,318,084		$	1	$	(725,594	)	$	592,497
Net loss		—			—		—			—		(96,832	)		(96,832	)
Unrealized gain on short-term investments		—			—		—			1		—			1
Stock-based compensation expense		—			—		80,410			—		—			80,410
Issuance of restricted shares		11			—		—			—		—			—
Common stock issued		1,068			—		31,854			—		—			31,854
Tax withholding upon vesting of restricted stock awards		(275	)		—		(31,562	)		—		—			(31,562	)
Balances at June 30, 2020		57,588		$	6	$	1,398,786		$	2	$	(822,426	)	$	576,368

	Estimated Fair Value			Estimated Useful Life (in years)
Current assets	$	10,603		N/A
Fixed assets		2,132		N/A
Operating lease right-of-use asset		2,669		N/A
Other assets		652		N/A
Customer relationships		15,800			5
Order backlog		1,300			1
Core/developed technology		35,400			4
Trade name		400			2
In-process research and development^*		20,600		N/A
Operating lease liabilities		(3,317	)	N/A
Deferred revenue		(6,700	)	N/A
Other liabilities		(5,591	)	N/A
Goodwill		144,551		Indefinite
	$	218,499

	Ending Balance as of December 31, 2018			Adjustments			Opening Balance as of January 1, 2019
Assets
Prepaid expenses and other current assets	$	16,872		$	(81	)	$	16,791
Operating lease right-of-use assets	$	—		$	59,549		$	59,549
Liabilities
Accounts payable	$	20,237		$	(216	)	$	20,021
Deferred rent	$	829		$	(829	)	$	—
Operating lease liabilities	$	—		$	24,820		$	24,820
Long-term operating lease liabilities	$	—		$	39,361		$	39,361
Long-term deferred rent	$	3,757		$	(3,757	)	$	—
Stockholders’ Equity
Accumulated deficit	$	(595,418	)	$	89		$	(595,329	)

	PROOFPOINT, INC.

	By:	/s/ GARY STEELE
		Gary Steele Chief Executive Officer (Principal Executive Officer)

	By:	/s/ PAUL AUVIL
		Paul Auvil Chief Financial Officer (Principal Financial and Accounting Officer)