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

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No ¨

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934). Yes ¨ No x

As of ~~June 12,~~August 10, 2015, 14,521,137 shares of common stock, par value $0.01, were outstanding.

As a company with less than $1.0 billion in revenue during our last fiscal year, we qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). An emerging growth company may take advantage of specified reduced reporting requirements and is relieved of certain other significant requirements that are otherwise generally applicable to public companies.

We will continue to operate under these provisions for up to five years or such earlier time that we are no longer an emerging growth company. We would cease to be an emerging growth company if we have more than $1.0 billion in annual revenues, qualify as a “large accelerated filer” under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which requires us to have more than $700 million in market value of our common stock held by non-affiliates, or issue more than $1.0 billion of non-convertible debt over a three-year period. We may choose to take advantage of some, but not all, of these reduced burdens.

Condensed Statement of Consolidated Operations and Comprehensive Loss (Unaudited)


	Quarter Ended March 31,						Quarter Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014			2015			2014
Revenue	$	6,793		$	7,285
Revenue - third parties							$	7,358		$	11,200		$	14,149		$	18,463
Revenue - related parties								1,140			1			1,142			23

								8,498			11,201			15,291			18,486

Cost of sales		6,793			5,666			7,393			8,705			14,186			14,371


Gross profit		—			1,619			1,105			2,496			1,105			4,115

Operating expenses
Research and development		1,734			1,844			1,659			1,909			3,393			3,753
Selling, general and administrative		6,118			5,201			6,343			5,267			12,461			10,468

		7,852			7,045			8,002			7,176			15,854			14,221


Loss from operations		(7,852	)		(5,426	)		(6,897	)		(4,680	)		(14,749	)		(10,106	)

Other (income) expense
Other expense (income)
Interest expense		28			29			30			45			58			74
Other income - net		(150	)		(92	)
Other expense (income) - net								71			(63	)		(79	)		(155	)

								101			(18	)		(21	)		(81	)
		(122	)		(63	)

Loss before income taxes		(7,730	)		(5,363	)		(6,998	)		(4,662	)		(14,728	)		(10,025	)

(Benefit) provision for income taxes		(59	)		164			(100	)		3			(159	)		167


Net loss	$	(7,671	)	$	(5,527	)	$	(6,898	)	$	(4,665	)	$	(14,569	)	$	(10,192	)


Net loss per common share:
Basic	$	(0.53	)	$	(0.38	)	$	(0.48	)	$	(0.32	)	$	(1.01	)	$	(0.71	)
Diluted	$	(0.53	)	$	(0.38	)	$	(0.48	)	$	(0.32	)	$	(1.01	)	$	(0.71	)

Comprehensive loss:
Net loss	$	(7,671	)	$	(5,527	)	$	(6,898	)	$	(4,665	)	$	(14,569	)	$	(10,192	)
Other comprehensive (loss) income:
Other comprehensive income (loss):
Foreign currency translation adjustments		(5,348	)		112			685			(294	)		(4,663	)		(182	)


Comprehensive loss	$	(13,019	)	$	(5,415	)	$	(6,213	)	$	(4,959	)	$	(19,232	)	$	(10,374	)

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.


	March 31, 2015			December 31, 2014			June 30, 2015			December 31, 2014
Assets
Current assets:
Cash and cash equivalents	$	30,101		$	36,202		$	24,780		$	36,202
Accounts receivable - net of allowance of $2,139 (2015) and $2,431 (2014)		10,221			14,238
Accounts receivable - net of allowance of $2,617 (2015) and $2,431 (2014)								7,240			14,238
Inventories - net		17,759			17,014			21,858			17,014
Prepaid expenses and other current assets		3,993			3,138			2,966			3,138

Total current assets		62,074			70,592			56,844			70,592

Property and equipment - net		54,250			55,298			54,727			55,298
Goodwill		4,316			4,665			4,381			4,665
Other noncurrent assets		2,337			2,875			2,218			2,875

Total assets	$	122,977		$	133,430		$	118,170		$	133,430


Liabilities
Current liabilities:
Current portion of long-term debt	$	134		$	132		$	135		$	132
Current portion of capital and financing leases		216			346			171			346
Accounts payable		3,897			2,553			3,748			2,553
Accrued expenses and other current liabilities		7,941			8,424			7,063			8,424
Deferred revenue and customer prepayments		2,592			902			4,826			902

Total current liabilities		14,780			12,357			15,943			12,357

Long-term debt - net of current portion		1,916			1,950			1,882			1,950
Capital and financing leases - net of current portion		144			164			123			164
Other noncurrent liabilities		208			414			87			414

Total liabilities		17,048			14,885			18,035			14,885


Contingencies and commitments

Stockholders’ equity
Common stock, $0.01 par value, 200,000,000 shares authorized, 14,428,634 (2015) and 14,417,803 (2014) shares issued and outstanding		144			144			144			144
Additional paid-in capital		155,305			154,902			155,724			154,902
Accumulated deficit		(35,969	)		(28,298	)		(42,867	)		(28,298	)
Accumulated other comprehensive loss		(13,551	)		(8,203	)		(12,866	)		(8,203	)

Total stockholders’ equity		105,929			118,545			100,135			118,545

Total liabilities and stockholders’ equity	$	122,977		$	133,430		$	118,170		$	133,430

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.


	Quarter Ended March 31,						Six Months Ended June 30,
	2015			2014			2015			2014
Operating activities
Net loss	$	(7,671	)	$	(5,527	)	$	(14,569	)	$	(10,192	)
Adjustments to reconcile net loss to cash used for operations:
Depreciation and amortization		1,218			733			2,489			1,602
Deferred income taxes		(79	)		—			(206	)		—
Equity-based compensation		403			440			822			693
Provision for bad debts		(128	)		21			324			44
Changes in fair value of contingent consideration		3			—			(193	)		(197	)
Changes in assets and liabilities, excluding effects of acquisitions and foreign currency translation adjustments:
Decrease (increase) in accounts receivable		2,628			(147	)		6,134			(4,436	)
Increase in inventories		(1,916	)		(3,811	)		(8,357	)		(7,103	)
(Increase) decrease in prepaid expenses and other assets		(489	)		311
Decrease (increase) in prepaid expenses and other assets								89			(3	)
Increase in accounts payable		1,267			1,213			1,914			1,422
Decrease in accrued expenses and other liabilities		(328	)		(91	)		(527	)		(255	)
Increase in deferred revenue and customer prepayments		996			532			3,974			42

Cash used for operating activities		(4,096	)		(6,326	)		(8,106	)		(18,383	)

Investing activities
Capital expenditures		(1,769	)		(5,141	)		(2,831	)		(14,501	)
Acquisitions, net of cash acquired of $201		—			(9,230	)		—			(9,230	)

Cash used for investing activities		(1,769	)		(14,371	)		(2,831	)		(23,731	)

Financing activities
Proceeds from exercise of employee stock options		—			318			—			318
Payments on long-term debt		(32	)		(369	)		(65	)		(400	)
Payments on capital and financing leases		(125	)		(134	)		(194	)		(272	)

Cash used for financing activities		(157	)		(185	)		(259	)		(354	)

Effect of exchange rate changes on cash and cash equivalents		(79	)		27			(226	)		35

Net change in cash and cash equivalents		(6,101	)		(20,855	)		(11,422	)		(42,433	)
Cash and cash equivalents at beginning of period		36,202			98,445			36,202			98,445

Cash and cash equivalents at end of period	$	30,101		$	77,590		$	24,780		$	56,012

Supplemental disclosure of noncash investing and financing activities
Property and equipment included in accounts payable	$	13		$	556		$	234		$	992

Transfer of inventories to property and equipment for internal use	$	2,506		$	1,524		$	2,506		$	3,368

Transfer of property and equipment to inventories for sale							$	149		$	332

Property and equipment acquired through financing arrangements							$	—		$	89

Net assets acquired through acquisitions, net of cash acquired of $201	$	—		$	9,685		$	—		$	9,685

Noncash consideration for acquisitions	$	—		$	455		$	—		$	455

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

Condensed Statement of Changes in Consolidated Stockholders’ Equity (Unaudited)


	Common stock				Additional paid-in capital			Accumulated deficit				Accumulated other comprehensive loss				Total stockholders’ equity				Common stock					Additional paid-in capital			Accumulated deficit				Accumulated other comprehensive loss				Total stockholders’ equity
	Shares		$									Accumulated other comprehensive loss			Shares						$				Additional paid-in capital			Accumulated deficit				Accumulated other comprehensive loss				Total stockholders’ equity
Balance at December 31, 2013		14,387	$	144	Additional paid-in capital	$	153,363	Accumulated deficit		$	(6,455	)		$	(352	Total stockholders’ equity	)		$	146,700		14,387		$	144		$	153,363			$	(6,455	)		$	(352	)		$	146,700
Net loss		—		—		—			(5,527	)			—				(5,527	)			—		—			—			(10,192	)			—				(10,192	)
Other comprehensive income		—		—		—			—				112				112
Other comprehensive loss																					—		—			—			—				(182	)			(182	)
Equity-based compensation		—		—		440			—				—				440				—		—			693			—				—				693
Common stock issued from equity incentive plan		30		—		318			—				—				318				30		—			318			—				—				318

Balance at March 31, 2014		14,417	$	144	$	154,121		$	(11,982	)		$	(240	)		$	142,043

Balance at June 30, 2014																					14,417	$	144		$	154,374		$	(16,647	)		$	(534	)		$	137,337


Balance at December 31, 2014		14,417	$	144	$	154,902		$	(28,298	)		$	(8,203	)		$	118,545				14,417	$	144		$	154,902		$	(28,298	)		$	(8,203	)		$	118,545
Net loss		—		—		—			(7,671	)			—				(7,671	)			—		—			—			(14,569	)			—				(14,569	)
Other comprehensive loss		—		—		—			—				(5,348	)			(5,348	)			—		—			—			—				(4,663	)			(4,663	)
Equity-based compensation		—		—		403			—				—				403				—		—			822			—				—				822
Common stock issued from equity incentive plan		11		—		—			—				—				—				11		—			—			—				—				—

Balance at March 31, 2015		14,428	$	144	$	155,305		$	(35,969	)		$	(13,551	)		$	105,929

Balance at June 30, 2015																					14,428	$	144		$	155,724		$	(42,867	)		$	(12,866	)		$	100,135

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

The ExOne Company (“ExOne”) is a corporation organized under the laws of the state of Delaware. ExOne was formed on January 1, 2013, when The Ex One Company, LLC, a Delaware limited liability company, merged with and into a Delaware corporation, which survived and changed its name to The ExOne Company (the “Reorganization”). As a result of the Reorganization, The Ex One Company, LLC became ExOne, the common and preferred interest holders of The Ex One Company, LLC became holders of common stock and preferred stock, respectively, of ExOne, and the subsidiaries of The Ex One Company, LLC became the subsidiaries of ExOne. The condensed consolidated financial statements include the accounts of ExOne, its wholly-owned subsidiaries, ExOne Americas LLC (United States), ExOne GmbH (Germany), ExOne Property GmbH (Germany), ExOne KK (Japan); effective in March 2014, MWT—Gesellschaft für Industrielle Mikrowellentechnik mbH (Germany); and effective in May 2014, ExOne Italy S.r.l (Italy). Collectively, the consolidated group is referred to as the “Company”.

On February 6, 2013, the Company commenced an initial public offering of 6,095,000 shares of its common stock at a price to the public of $18.00 per share, of which 5,483,333 shares were sold by the Company and 611,667 were sold by a selling stockholder (including consideration of the exercise of the underwriters’ over-allotment option). Following completion of the offering on February 12, 2013, the Company received net proceeds of approximately $91,996 (net of underwriting commissions).

On September 9, 2013, the Company commenced a secondary public offering of 3,054,400 shares of its common stock at a price to the public of $62.00 per share, of which 1,106,000 shares were sold by the Company and 1,948,400 were sold by selling stockholders (including consideration of the exercise of the underwriters’ over-allotment option). Following completion of the offering on September 13, 2013, the Company received net proceeds of approximately $65,315 (net of underwriting commissions).

The condensed consolidated financial statements of the Company are unaudited. The condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, considered necessary by management to fairly state the results of operations, financial position and cash flows of the Company. All material intercompany transactions and balances have been eliminated in consolidation. The results reported in these condensed consolidated financial statements are not necessarily indicative of the results that may be expected for the entire year. The December 31, 2014 condensed consolidated balance sheet data was derived from the audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). This Quarterly Report on Form 10-Q should be read in connection with the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, which includes all disclosures required by GAAP.

The Company has incurred net losses in each of its annual periods since its inception. As shown in the accompanying condensed consolidated financial statements, the Company incurred a net loss of approximately ~~$7,671~~$6,898 and $14,569 for the quarter and six months ended ~~March 31, 2015.~~June 30, 2015, respectively. Prior to Reorganization the Company operated as a limited liability company and was substantially supported by the continued financial support provided by its majority member. As noted above, in connection with the completion of its initial public offering and secondary public offering in 2013, the Company received unrestricted net proceeds from the sale of its common stock of approximately $157,311. Management believes that the Company’s existing capital resources will be sufficient to support the Company’s operations through ~~April~~July 1, 2016.

The Company has additionally considered the impact of continued operating losses and cash flow deficiencies on the carrying value of goodwill and long-lived assets held ~~and used~~for use by the Company. Based on the assessment completed by management, no impairment loss has been recorded by the Company during the quarter or six months ended ~~March 31,~~June 30, 2015. Assessing the recoverability of goodwill and long-lived assets held for use requires significant judgments and estimates by management. A deterioration in general economic conditions, negative developments in equity and credit markets, a significant decline in the Company’s market capitalization, adverse changes in the markets in which the Company operates, increases in input costs that have a negative effect on earnings and cash flows, or a trend of negative or declining cash flows, among other indicators, could cause a future assessment to be performed which may result in an impairment of goodwill, long-lived assets held for use, or both, resulting in ana material adverse effect on the financial position and results of operations of the Company.

On January 1, 2015, the Company adopted Financial Accounting Standards Board (“FASB”) guidance clarifying the presentation of unrecognized tax benefits when a net operating loss carryforward, or similar tax loss or a tax credit carryforward exists. The amendment requires that unrecognized tax benefits be presented in the consolidated financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, unless certain exceptions exist. Previously, there was diversity in practice as no explicit guidance existed. As the Company had previously followed the now required presentation, the adoption of this guidance did not have a material impact on the consolidated financial statements of the Company.

In May 2014, the FASB issued changes to the recognition of revenue from contracts with customers. These changes created a comprehensive framework for all entities in all industries to apply in the determination of when to recognize revenue, and, therefore, supersede virtually all existing revenue recognition requirements and guidance. This framework is expected to provide a consistent and comparable methodology for revenue recognition. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this principle, an entity should apply the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract(s), (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract(s), and (v) recognize revenue when, or as, the entity satisfies a performance obligation. These changes become effective for the Company on January 1, 2018, or January 1, 2017, in the event that the Company no longer qualifies as an emerging growth company in accordance with the JOBS ~~Act.~~Act and the Company elects to early adopt the changes. Management is currently evaluating the potential impact of these changes on the consolidated financial statements of the Company.

In August 2014, the FASB issued changes to the disclosure of uncertainties about an entity’s ability to continue as a going concern. Under GAAP, continuation of a reporting entity as a going concern is presumed as the basis for preparing financial statements unless and until the entity’s liquidation becomes imminent. Even if an entity’s liquidation is not imminent, there may be conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern. Because there is no guidance in GAAP about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern or to provide related note disclosures, there is diversity in practice whether, when, and how an entity discloses the relevant conditions and events in its financial statements. As a result, these changes require an entity’s management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that financial statements are issued. Substantial doubt is defined as an indication that it is probable that an entity will be unable to meet its obligations as they become due within one year after the date that financial statements are issued. If management has concluded that substantial doubt exists, then the following disclosures should be made in the financial statements: (i) principal conditions or events that raised the substantial doubt, (ii) management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations, (iii) management’s plans that alleviated the initial substantial doubt or, if substantial doubt was not alleviated, management’s plans that are intended to at least mitigate the conditions or events that raise substantial doubt, and (iv) if the latter in (iii) is disclosed, an explicit statement that there is substantial doubt about the entity’s ability to continue as a going concern. These changes become effective for the Company on December 31, 2016. Subsequent to adoption, this guidance will need to be applied by management at the end of each annual period and interim period therein to determine what, if any, impact there will be on the consolidated financial statements of the Company in a given reporting period.

In April 2015, the FASB issued changes to the presentation of debt issuance costs in financial statements. These changes require an entity to present such costs in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs will continue to be reported as interest expense. These changes become effective for the Company on December 31, 2016, or March 31, 2016, in the event that the Company no longer qualifies as an emerging growth company in accordance with the JOBS Act. Early adoption is permitted. The new guidance will be applied retrospectively to each prior period presented. Management is currently evaluating the potential impact of these changes on the consolidated financial statements of the Company.

In July 2015, the FASB issued changes to the measurement of inventories accounted for under any method other than last in, first out or the retail method. These changes require such inventories to be measured at the lower of cost and net realizable value, with net realizable value defined as the estimated selling price in the normal course of business, less reasonably predictable costs of completion, disposal and transportation. These changes become effective for the Company on January 1, 2017. Early adoption is permitted. The new guidance will be applied prospectively in the interim or annual period adopted. Management is currently evaluating the potential impact of these changes on the consolidated financial statements of the Company.

The following table summarizes changes in the components of accumulated other comprehensive loss:


	Quarter Ended March 31,						Quarter Ended June 30,						Six Months Ended June 30,
Foreign currency translation adjustments	2015			2014			2015			2014			2015			2014
Balance at beginning of period	$	(8,203	)	$	(352	)	$	(13,551	)	$	(240	)	$	(8,203	)	$	(352	)
Other comprehensive (loss) income		(5,348	)		112
Other comprehensive income (loss)								685			(294	)		(4,663	)		(182	)

Balance at end of period	$	(13,551	)	$	(240	)	$	(12,866	)	$	(534	)	$	(12,866	)	$	(534	)

Foreign currency translation adjustments consist of (i) the effect of translation of functional currency financial statements (denominated in the Euro and Japanese Yen) to the reporting currency of the Company (U.S. ~~Dollar)~~dollar) and (ii) certain long-term intercompany transactions between subsidiaries for which settlement is not planned or anticipated.

There were no tax impacts related to income tax rate changes and no amounts were reclassified to earnings for either of the periods presented.

The Company presents basic and diluted net loss per common share amounts. Basic net loss per share is calculated by dividing net loss available to common shareholders by the weighted average number of common shares outstanding during the applicable period. Diluted net loss per share is calculated by dividing net loss available to common shareholders by the weighted average number of common shares and common equivalent shares outstanding during the applicable period.

As the Company incurred a net loss during each of the quarters and six months ended ~~March 31,~~June 30, 2015 and 2014, basic average shares outstanding and diluted average shares outstanding were the same because the effect of potential shares of common stock, including incentive stock options ~~(207,803~~(206,303 – 2015 and 155,637 – 2014) and unvested restricted stock issued (92,503 – 2015 and 25,834 – 2014), was anti-dilutive.

The information used to compute basic and diluted net loss per common share was as follows:


	Quarter Ended March 31,						Quarter Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014			2015			2014
Net loss	$	(7,671	)	$	(5,527	)	$	(6,898	)	$	(4,665	)	$	(14,569	)	$	(10,192	)
Weighted average shares outstanding (basic and diluted)		14,423,237			14,392,403			14,428,634			14,416,970			14,425,950			14,404,755
Net loss per common share:

Net loss attributable to ExOne per common share:
Basic	$	(0.53	)	$	(0.38	)	$	(0.48	)	$	(0.32	)	$	(1.01	)	$	(0.71	)
Diluted	$	(0.53	)	$	(0.38	)	$	(0.48	)	$	(0.32	)	$	(1.01	)	$	(0.71	)


	March 31, 2015		December 31, 2014		June 30, 2015		December 31, 2014
Raw materials and components	$	10,775	$	10,838	$	13,533	$	10,838
Work in process		4,466		4,221		3,881		4,221
Finished goods		2,518		1,955		4,444		1,955

	$	17,759	$	17,014	$	21,858	$	17,014

Raw materials and components consist of (i) consumable materials and (ii) component parts and subassemblies associated with 3D printing machine manufacturing and support activities. Work in process consists of 3D printing machines and other products in varying stages of completion. Finished goods consist of 3D printing machines and other products prepared for delivery in accordance with customer specifications.

At ~~March 31,~~June 30, 2015 and December 31, 2014, the allowance for slow-moving and obsolete inventories was approximately ~~$1,165~~$1,207 and $1,241, respectively, and has been reflected as a reduction to inventories (principally raw materials and components). Included in the allowance for slow-moving and obsolete inventories at ~~March 31,~~June 30, 2015 and December 31, 2014, is approximately ~~$406~~$445 and $419, respectively, associated with the Company’s laser micromachining product line which was discontinued at the end of 2014.

The Company and its subsidiaries are subject to various litigation, claims, and proceedings which have been or may be instituted or asserted from time to time in the ordinary course of business. Management does not believe that the outcome of any pending or threatened matters will have a material adverse effect, individually or in the aggregate, on the financial position, results of operations or cash flows of the Company.

On January 24, 2013, the Board of Directors of the Company adopted the 2013 Equity Incentive Plan (the “Plan”). In connection with the adoption of the Plan, 500,000 shares of common stock were reserved for issuance pursuant to the Plan, with automatic increases in such reserve available each year annually on January 1 from 2014 through 2023 equal to the lesser of (i) 3.0% of the total outstanding shares of common stock as of December 31 of the immediately preceding year or (ii) a number of shares of common stock determined by the Board of Directors, provided that the maximum number of shares authorized under the Plan will not exceed 1,992,242 shares, subject to certain adjustments.

The following table summarizes the total equity-based compensation expense recognized for awards issued under the Plan:


	Quarter Ended March 31,				Quarter Ended, June 30				Six Months Ended, June 30
	2015		2014		2015		2014		2015		2014
Equity-based compensation expense recognized:
Incentive stock options	$	195	$	160	$	186	$	159	$	381	$	319
Restricted stock		208		83		233		94		441		177
Stock bonus awards		—		197		—		—		—		197

Total equity-based compensation expense before income taxes		403		440		419		253		822		693
Benefit for income taxes*		—		—		—		—		—		—

Total equity-based compensation expense net of income taxes	$	403	$	440	$	419	$	253	$	822	$	693

At ~~March 31,~~June 30, 2015, total future compensation expense related to unvested awards yet to be recognized by the Company was approximately ~~$1,002~~$802 for incentive stock options (“ISOs”) and ~~$1,601~~$1,368 for restricted stock awards. Total future compensation expense related to unvested awards yet to be recognized by the Company is expected to be recognized over a weighted-average remaining vesting period of approximately ~~1.9~~1.7 years.

The activity for ISOs for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, was as follows:


								Number of ISOs			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
	Number of ISOs			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2014		215,137		$	17.35	$	10.62		215,137		$	17.35	$	10.62
ISOs granted		—		$	—	$	—		—		$	—	$	—
ISOs exercised		—		$	—	$	—		—		$	—	$	—
ISOs forfeited		(7,334	)	$	17.54	$	11.03		(8,834	)	$	17.23	$	10.54

Outstanding at March 31, 2015		207,803		$	17.34	$	10.61
Outstanding at June 30, 2015									206,303		$	17.35	$	10.62

ISOs exercisable at March 31, 2015		96,472		$	18.00	$	11.03
ISOs expected to vest at March 31, 2015		106,248		$	16.79	$	10.26
ISOs exercisable at June 30, 2015									96,472		$	18.00	$	11.03
ISOs expected to vest at June 30, 2015									104,836		$	16.80	$	10.27

At ~~March 31,~~June 30, 2015, there was no intrinsic value associated with ISOs exercisable or ISOs expected to vest. The weighted average remaining contractual term of ISOs ~~both~~ exercisable and expected to vest at ~~March 31,~~June 30, 2015, was approximately ~~6.8 years.~~7.6 years and 8.6 years, respectively. ISOs with an aggregate intrinsic value of approximately $306 were exercised by employees during the quarter ended March 31, 2014, resulting in proceeds to the Company from the exercise of stock options of approximately $318. The Company received no income tax benefit related to these exercises. There were no exercises during the quarter or six months ended ~~March 31, 2015.~~June 30, 2015 or the quarter ended June 30, 2014.

The activity for restricted stock awards for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, was as follows:


						Shares of Restricted Stock			Weighted Average Grant Date Fair Value
	Shares of Restricted Stock			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2014		80,834		$	22.78		80,834		$	22.78
Restricted shares granted		22,500		$	14.17		22,500		$	14.17
Restricted shares vested*		(10,831	)	$	34.80
Restricted shares vested							(10,831	)	$	34.80
Restricted shares forfeited		—		$	—		—		$	—

Outstanding at March 31, 2015		92,503		$	19.28
Outstanding at June 30, 2015							92,503		$	19.28

Restricted shares expected to vest at December 31, 2015		92,503		$	19.28
Restricted shares expected to vest at June 30, 2015							92,503		$	19.28

The (benefit) provision for income taxes for the quarters ended ~~March 31,~~June 30, 2015 and 2014 was ($~~59)~~100) and ~~$164,~~$3, respectively. The (benefit) provision for income taxes for the six months ended June 30, 2015 and 2014 was ($159) and $167, respectively. The Company has completed a discrete period computation of its (benefit) provision for income taxes for each of the periods presented. Discrete period computation is as a result of (i) jurisdictions with losses before income taxes for which no tax benefit can be recognized and (ii) an inability to generate reliable estimates for results in certain jurisdictions as a result of inconsistencies in generating net operating profits (losses) in those jurisdictions.

The effective tax rate for the quarters ended ~~March 31,~~June 30, 2015 and 2014 was ~~0.8%~~1.4% (benefit on a loss) and ~~3.1%~~0.1% (provision on a loss), respectively. The effective tax rate for the six months ended June 30, 2015 and 2014 was 1.1% (benefit on a loss) and 1.7% (provision on a loss), respectively. The effective tax rate differs from the U.S. federal statutory rate of 34.0% for each of the periods presented primarily due to net changes in valuation allowances for the periods.

The Company has provided a valuation allowance for its net deferred tax assets as a result of the Company not generating consistent net operating profits in jurisdictions with which it operates. As such, any benefit from deferred taxes in either quarterly period has been fully offset by changes in the valuation allowance for net deferred tax assets. The Company continues to assess its future taxable income by jurisdiction based on (i) recent historical operating results, (ii) the expected timing of reversal of temporary differences, (iii) various tax planning strategies that the Company may be able to enact in future periods, (iv) the impact of potential operating

changes on the business and (v) forecast results from operations in future periods based on available information at the end of each reporting period. To the extent that the Company is able to reach the conclusion that deferred tax assets are realizable based on any combination of the above factors, a reversal of existing valuation allowances may occur.

The Company has a liability for uncertain tax positions related to certain capitalized expenses and intercompany transactions. At ~~March 31,~~June 30, 2015 and December 31, 2014, the liability for uncertain tax positions was approximately ~~$777~~$795 and $871, respectively, and is included in accrued expenses and other current liabilities in the condensed consolidated balance sheet. In addition, at ~~March 31,~~June 30, 2015 and December 31, 2014, the Company had a liability for uncertain tax positions related to its ExOne GmbH (Germany) and ExOne KK (Japan) subsidiaries of approximately ~~$437~~$552 and $354, respectively, which were fully offset against net operating loss carryforwards of the respective subsidiaries.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which the Company would transact and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability, such as inherent risk, transfer restrictions and credit risk.

The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

The Company is required to disclose its estimate of the fair value of material financial instruments, including those recorded as assets or liabilities in its consolidated financial statements, in accordance with GAAP.

The following table sets forth the fair value of the Company’s liabilities measured on a recurring basis by level:


	Level		March 31, 2015		December 31, 2014		Level		June 30, 2015		December 31, 2014
Accrued expenses and other current liabilities:
Contingent consideration		3	$	193	$	190		3	$	—	$	190

The fair value of contingent consideration associated with the 2014 acquisition of Machin-A-Mation Corporation (“MAM”) is determined by using certain forecasts of future profitability of MAM (an unobservable input). The valuation technique utilized by the Company with respect to this instrument is a discounted cash flow model, principally based on the assumption of achievement of the profitability targets stipulated in the earn-out provision. Future expected payments have been discounted using a market interest rate assumption. Terms of the earn-out provision require minimum achievement of revenues ($3,500) and gross profit ($875) for the year ~~ended~~ending December 31, 2015.

During the quarter and six months ended ~~March 31,~~June 30, 2015, the Company recorded changes in the fair value of contingent consideration issued in connection with the acquisition of MAM of approximately ~~$3,~~($193) and ($190), respectively, with a corresponding amount recorded to selling, general and administrative expenses. Changes in contingent consideration recorded by the Company during the quarter and six months ended ~~March 31,~~June 30, 2015 are based on (i) revisions of estimates of revenues and gross profit for MAM for the year ending December 31, 2015 and (ii) the impact of discounting future cash payments on the associated liabilities.

The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial instruments:


	Quarter Ended March 31,				Quarter Ended June 30,						Six Months Ended June 30,
	2015		2014		2015			2014			2015			2014
Beginning balance	$	190	$	—	$	193		$	377		$	190		$	—
Purchases		—		—		—			—			—			—
Sales		—		—		—			—			—			—
Issuances		—		377		—			—			—			377
Settlements		—		—		—			—			—			—
Realized (gains) losses		—		—		(193	)		(200	)		(193	)		(200	)
Unrealized (gains) losses		3		—		—			3			3			3
Transfers into Level 3		—		—		—			—			—			—
Transfers out of Level 3		—		—		—			—			—			—

Ending balance	$	193	$	377	$	—		$	180		$	—		$	180

The carrying values and fair values of other financial instruments (assets and liabilities) not required to be recorded at fair value were as follows:


	March 31, 2015				December 31, 2014				June 30, 2015				December 31, 2014
	Carrying Value		Fair Value		Carrying Value		Fair Value		Carrying Value		Fair Value		Carrying Value		Fair Value
Cash and cash equivalents	$	30,101	$	30,101	$	36,202	$	36,202	$	24,780	$	24,780	$	36,202	$	36,202
Current portion of long-term debt	$	134	$	134	$	132	$	132	$	135	$	135	$	132	$	132
Current portion of capital and financing leases	$	216	$	216	$	346	$	346	$	171	$	171	$	346	$	346
Long-term debt - net of current portion	$	1,916	$	1,894	$	1,950	$	2,022	$	1,882	$	1,859	$	1,950	$	2,022
Capital and financing leases - net of current portion	$	144	$	144	$	164	$	164	$	123	$	123	$	164	$	164

The carrying amounts of cash and cash equivalents, current portion of long-term debt and current portion of capital and financing leases approximate fair value due to their short-term maturities. Cash and cash equivalents are classified in Level 1; current portion of long-term debt, current portion of capital and financing leases, long-term debt – net of current portion and capital and financing leases – net of current portion are classified in Level 2.

During the quarters and six months ended ~~March 31,~~June 30, 2015 and 2014, the Company conducted a significant portion of its business with a limited number of customers. For the quarters ended ~~March 31,~~June 30, 2015 and 2014, the Company’s five most significant customers represented approximately ~~23.5%~~25.5% and ~~39.0%~~49.3% of total revenue, respectively. For the six months ended June 30, 2015 and 2014, the Company’s five most significant customers represented approximately 18.9% and 34.3% of total revenue, respectively. At ~~March 31,~~June 30, 2015 and December 31, 2014, accounts receivable from the Company’s five most significant customers were approximately ~~$4,653~~$2,634 and $6,326, respectively.

In December 2014, the Company entered into a sale agreement for a 3D printing machine with a powdered metal company with proprietary powders determined to be a related entity ~~under~~based on common control by the Chairman and CEO of the Company. Total consideration for the 3D printing machine (approximately $1,000) was determined to represent a fair market value selling price (based on comparable 3D printing machine sales to third parties) and was approved prior to execution by the Audit Committee of the Board of Directors of the Company. The Company recorded revenue of approximately $815 on this transaction during ~~2014.~~2014 based on the delivery of products and/or services. During the quarter and six months ended June 30, 2015, the Company recorded approximately $115 of the remaining consideration covered under this transaction based on the delivery of additional products and/or services. At ~~March 31,~~June 30, 2015, the Company continued to defer the remaining consideration covered under this transaction (approximately ~~$185)~~$70) as certain additional products and/or services remained undelivered by the Company. All of the proceeds associated with this transaction have been received by the Company at ~~March 31,~~June 30, 2015.

In March 2015, the Company entered into a separate sale agreement for a 3D printing machine with the same related entity ~~under common control by the Chairman and CEO of the Company.~~described above. Total consideration for the 3D printing machine (approximately $950)

was determined to represent a fair market value selling price (based on comparable 3D printing machine sales to third parties) and was approved prior to execution by the Audit Committee of the Board of Directors of the Company. The Company recorded revenue of approximately $866 on this transaction during the quarter ended June 30, 2015, based on the delivery of products and/or services. At ~~March 31,~~June 30, 2015, the Company ~~deferred~~continued to defer the ~~full~~remaining consideration covered under this transaction (approximately $84) as certain ~~criteria necessary to recognize revenue on this transaction were not met.~~additional products and/or services remained undelivered by the Company. All of the proceeds associated with this transaction have been received by the Company at ~~March 31,~~June 30, 2015.

In June 2015, the Company entered into a sale agreement for a 3D printing machine with a multi-national, diversified metals company determined to be a related entity on the basis that a member of the Board of Directors of the Company also receives his principal compensation from the entity. Total consideration for the 3D printing machine (approximately $146) was determined to represent a fair market value selling price (based on comparable 3D printing machine sales to third parties) and was approved prior to execution by the Audit Committee of the Board of Directors of the Company. The Company recorded revenue of approximately $141 on this transaction during the quarter ended June 30, 2015 based on the delivery of products and/or services. At June 30, 2015, the Company continued to defer the remaining consideration covered under this transaction (approximately $5) as certain additional products and/or services remained undelivered by the Company. At June 30, 2015, amounts due from this related party were not significant.

Additional sales of products and/or services to related entities, both individually and in the aggregate, during the quarters and six months ended ~~March 31,~~June 30, 2015 and 2014 were not significant.

Amounts due from related entities (both individually and in the aggregate) at ~~March 31,~~June 30, 2015 and December 31, 2014, were not significant.

In December 2014, the Company entered into a consulting arrangement with Hans J. Sack who was subsequently appointed to the Board of Directors of the Company on December 17, 2014. Total consideration under the consulting arrangement was approximately $75, of which approximately $50 was included in selling, general and administrative expenses in the condensed statement of consolidated operations and comprehensive loss for the quarter ended March 31, 2015, based on the services rendered (the remaining amount having been recorded by the Company during the quarter ended December 31, 2014). In connection with his appointment to the Board of Directors of the Company, the Audit Committee of the Board of Directors of the Company approved this arrangement under company policy for related party transactions. In March 2015, Hans J. Sack resigned from the Board of Directors to accept a position as President of the Company.

Separate from the consulting agreement described above, the Company has purchased certain raw materials and components, website design services and the corporate use of an airplane and leased office space from related entities under common control by the Chairman and CEO of the Company. The cost of these products and/or services were not significant to the Company during the quarters or six months ended ~~March 31,~~June 30, 2015 and 2014. None of the transactions met a threshold requiring review and approval by the Board of Directors of the Company. The Company also receives the benefit of the corporate use of an airplane from a related party under common control by the Chairman and CEO of the Company for no consideration. The value of this benefit during the quarters and six months ended ~~March 31,~~June 30, 2015 and 2014 was not significant to the Company.

Amounts due to related entities (both individually and in the aggregate) at ~~March 31,~~June 30, 2015 and December 31, 2014, were not significant.

The Company has evaluated all of its activities and concluded that no subsequent events have occurred that would require recognition in the condensed consolidated financial statements or disclosure in the notes to the condensed consolidated financial statements.

The following discussion and analysis should be read together with our unaudited condensed consolidated financial statements and related notes thereto set forth in this Quarterly Report on Form 10-Q as well as our Annual Report on Form 10-K for the year ended December 31, 2014.

This Quarterly Report on Form 10-Q may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act with respect to our future financial or business performance, strategies, or expectations. Forward-looking statements typically are identified by words or phrases such as “trend,” “potential,” “opportunity,” “pipeline,” “believe,” “comfortable,” “expect,” “anticipate,” “current,” “intention,” “estimate,” “position,” “assume,” “outlook,” “continue,” “remain,” “maintain,” “sustain,” “seek,” “achieve,” as well as similar expressions, or future or conditional verbs such as “will,” “would,” “should,” “could” and “may.”

We caution that forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made and we assume no duty to and do not undertake to update forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements and future results could differ materially from historical performance.

In addition to items described under “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2014, as modified and supplemented by “Risk Factors” in Part II, Item 1A of our Quarterly Report on Form 10-Q for the periods ended March 31, 2015 and June 30, 2015, the following factors, among others, could cause results to differ materially from forward-looking statements or historical performance: timing and length of sales of machines; risks related to global operations including effects of foreign currency and risks related to the situation in the Ukraine; our ability to qualify more industrial materials in which we can print; the availability of skilled personnel; the impact of increased operating expenses and expenses relating to proposed acquisitions, investments and alliances; our strategy, including the expansion and growth of our operations; the impact of loss of key management; our plans regarding increased international operations in additional international locations; sufficiency of funds for required capital expenditures, working capital, and debt service; the adequacy of sources of liquidity; expectations regarding demand for our industrial products, operating revenues, operating and maintenance expenses, insurance expenses and deductibles, interest expenses, debt levels, and other matters with regard to outlook; demand for aerospace, automotive, heavy equipment, energy/oil/gas and other industrial products; the scope, nature or impact of acquisitions, alliances and strategic investments and our ability to integrate acquisitions and strategic investments; liabilities under laws and regulations protecting the environment; the impact of governmental laws and regulations; operating hazards, war, terrorism and cancellation or unavailability of insurance coverage; the effect of litigation and contingencies; the impact of disruption of our manufacturing facilities or production service centers (“PSCs”); the adequacy of our protection of our intellectual property; ~~and~~ material weaknesses in our internal control over financial ~~reporting.~~reporting; and the impact of customer specific terms in machine purchase agreements on the period in which we recognize revenue.

We are a global provider of 3D printing machines and 3D printed and other products, materials and services to industrial customers. Our business primarily consists of manufacturing and selling 3D printing machines and printing products to specification for our customers using our installed base of 3D printing machines. We offer pre-production collaboration and printed products for customers through our eight production PSCs, which are located in the United States, Germany, Italy and Japan. We build 3D printing machines at our facilities in the United States and Germany. We also supply the associated materials, including consumables and replacement parts, and other services, including training and technical support, necessary for purchasers of our machines to print products. We believe that our ability to print in a variety of industrial materials, as well as our industry-leading printing capacity (as measured by build box size and print head speed) uniquely position us to serve the needs of industrial customers.

Our results of operations for the quarter ended ~~March 31,~~June 30, 2015, were negatively affected by lower than expected sales of 3D printing machines as a result of longer than expected sales cycles for certain customers and as ~~well~~a result, our gross profit was negatively affected based on a lower contribution margin from the sale of these units. We also experienced higher than expected selling, general and administrative costs during the quarter ended June 30, 2015, principally due to an increase in the provision for bad debts related to certain customer balances estimated as uncollectible. In addition to the factors above, our results of operations for the six months ended June 30, 2015, were negatively impacted by overall increased costs ~~for~~of production and selling, general and administrative activities, principally in the form of expanded personnel costs ~~consulting and professional fees~~ and facilities costs, ~~all~~both of which were ~~impacted by~~attributable to the transition and expansion of our German and United States operations and deployment of our new enterprise resource planning (“ERP”) ~~system. Offsetting these negative effects, were increases~~system (both resulting in ~~revenues associated with 3D printed~~production and ~~other products, materials and services, mostly due to increased customer acceptance and demand for our additive manufacturing technologies.~~operational inefficiencies).

Note the following 2015 operational ~~highlights for the quarter ended March 31, 2015:~~highlights:

Qualification of Water Wash-Out Tooling Process for Industrial 3D Printing Applications. In July 2015, we announced the qualification of a new application for our additive manufacturing process, Water Wash-Out Tooling, designed to aid in the development of manufacturing and composite tooling. Intended for the production of hollow parts, typical of mandrel or clamshell molding, our Water Wash-Out Tooling process involves the 3D printing of a core in sand, ceramics, or carbon applying a composite lay-up and curing. The final core is then washed out with only the structural composite part remaining. Water Wash-Out Tooling is ideal for printing mandrels for filament winding, tape placement or hand lay-up; plugs and source tools; styling and design models; hollow or trapped shape fabrication; and one-off parts for part validation.

Debut of the Exerial 3D printing system and delivery of the initial production units. In June 2015, we debuted the Exerial machine platform at the GIFA International Foundry Trade Fair in Dusseldorf, Germany. We also shipped the initial production units with an expected delivery date in August 2015. The Exerial is unique compared to our other indirect printing systems in that it contains multiple industrial stations that allow for continuous production and simultaneous processing. The Exerial is distinctly equipped with two job boxes, each 1.5 times larger than the single job box in our next largest model, the S-Max. Notably, the Exerial system offers a total build platform of 3,168 liters and is expected to be capable of printing output rates nearly four times faster than the S-Max. The Exerial utilizes a new recoater system, multiple print heads and automation controls. As part of the development of the Exerial, we have filed six patents related to machine design elements.

With our facilities expansions substantially behind us, and our new machine platforms (Exerial, S-MAX+ and Innovent) gaining market attention, we plan to shift our focus over the remainder of 2015 to improving the operational effectiveness of our business with the primary goal being the continued global adoption of our binder jetting technologies. This includes further expanding our business focus from predominantly prototyping activities and short-run production to series production, principally through our continued introduction of the Exerial machine platform (planned introduction at the GIFA International Foundry Trade Fair in Dusseldorf, Germany in June 2015). We are in the process of completing an extensive strategic review of our businesses which will consider the markets we serve, our customers and our geographic footprint.platform. We intend to place a firm emphasis on maximizing revenues from our 3D printing machines and continuing to grow our revenues from 3D printed and other products, materials and services. We also plan to continue to effectively manage our costs of production (focusing on our print material costs and machine manufacturing costs) and operating expenses such that we align our spending plans with the anticipated growth of our business. We expect that our existing capital resources will be sufficient to meet our 2015 operating plan. If we anticipate that our

actual results will differ from our 2015 operating plan, we believe we have sufficient capabilities to enact cost saving measures to preserve capital. Further, we may seek to raise capital to support our growth through debt, equity or other alternatives or a combination thereof.

Net loss for the quarter ended ~~March 31,~~June 30, 2015, was ~~$7,671,~~$6,898, or ~~$0.53~~$0.48 per basic and diluted share, compared with a net loss of ~~$5,527,~~$4,665 or ~~$0.38~~$0.32 per basic and diluted share, for the quarter ended ~~March 31,~~June 30, 2014. Net loss for the six months ended June 30, 2015, was $14,569, or $1.01 per basic and diluted share, compared with a net loss of $10,192, or $0.71 per basic and diluted share, for the six months ended June 30, 2014.

The increase in our net loss for both periods was principally due to ~~(i)~~ a decrease in our revenues and gross profit principally attributed to an unfavorable mix of sales (between 3D printing machines and ~~increases in~~3D printed and other products, materials and services). We also incurred increased production costs associated with the transition and expansion of our global facilities and ~~(ii) an increase in~~increased operating expenses ~~attributed to increased selling, general and administrative expense (due~~due to increased personnel costs and consulting and professional ~~fees).~~fees, mostly due to our global facilities transition and expansion and implementation of our ERP system. In addition, we incurred an increase in our provision for bad debts associated with certain customer balances estimated as uncollectible. These changes were offset by a reduction in research and development expense as a result of a reduction in costs associated with materials qualification and machine development activities, principally materials usage, offset by an increase in personnel costs based on an increased headcount.

The following table summarizes revenue by product line for each of the ~~quarterly~~quarter and six month periods ended ~~March 31:~~June 30:


									Quarter Ended June 30,								Six Months Ended June 30,
	2015				2014				2015				2014				2015				2014
3D printing machines	$	1,082	15.9	%	$	2,439	33.5	%
3D printed and other products, materials and services		5,711	84.1	%		4,846	66.5	%
3D printing machines - third parties									$	1,319	15.5	%	$	5,959	53.2	%	$	2,401	15.7	%	$	8,398	45.4	%
3D printing machines - related parties										1,122	13.2	%		—	0.0	%		1,122	7.3	%		—	0.0	%

	$	6,793	100.0	%	$	7,285	100.0	%		2,441	28.7	%		5,959	53.2	%		3,523	23.0	%		8,398	45.4	%

3D printed and other products, materials and services
3D printed and other products, materials and services - third parties										6,039	71.1	%		5,241	46.8	%		11,748	76.8	%		10,065	54.4	%
3D printed and other products, materials and services - related parties										18	0.2	%		1	0.0	%		20	0.1	%		23	0.1	%

										6,057	71.3	%		5,242	46.8	%		11,768	77.0	%		10,088	54.6	%

									$	8,498	100.0	%	$	11,201	100.0	%	$	15,291	100.0	%	$	18,486	100.0	%

The following table summarizes the significant components of the change in revenue by product line for the quarter ended June 30, 2014, compared to the quarter ended June 30, 2015:

Revenue for the quarter ended ~~March 31,~~June 30, 2015, was ~~$6,793~~$8,498 compared with revenue of ~~$7,285~~$11,201 for the quarter ended ~~March 31,~~June 30, 2014, a decrease of ~~$492,~~$2,703, or ~~6.8%~~24.1%. ~~This~~The decrease in revenue was principally due to a decrease in revenues associated with 3D printing machines ~~for the quarter ended March 31, 2015, as compared to the quarter ended March 31, 2014,~~ as a result of an unfavorable mix of sales of machines. Offsetting this decrease was an increase in revenue as a ~~reduction in~~result of higher volumes (2from both 3D printing machines (seven units sold versus 3six in the ~~prior year quarter)~~comparable period) and 3D printed and other products, materials and services driven by an overall continued increase in customer acceptance and demand for our additive manufacturing technologies, resulting in higher PSC volumes and an increase in the number of our 3D printing machines that are installed and active worldwide (resulting in higher aggregate consumable material and service revenues). Unfavorable changes in currency also impacted revenues from both product lines (principally appreciation of the U.S. dollar against the Euro and Japanese Yen).

The following table summarizes the significant components of the change in revenue by product line for the six months ended June 30, 2014, compared to the six months ended June 30, 2015:

Revenue for the six months ended June 30, 2015, was $15,291 compared with revenue of $18,486 for the six months ended June 30, 2014, a decrease of $3,195, or 17.3%. The decrease in revenue was principally due to a decrease in revenues associated with 3D printing machines as a result of an unfavorable mix of sales of machines. Offsetting this decrease was an increase in revenue as a result of higher volumes from 3D printed and other products, materials and services driven by ~~(i)~~ an overall continued increase in customer acceptance and demand for our additive manufacturing technologies, resulting in higher PSC volumes ~~(ii)~~and an increase in the number of our 3D printing machines that are installed and active worldwide (resulting in higher aggregate consumable material and service revenues) ~~and (iii) a full quarterly period of revenues attributable to MAM and MWT (both acquired in March 2014)~~. Unfavorable changes in currency also impacted revenues from both product lines (principally appreciation of the U.S. dollar against the Euro and Japanese Yen).

The following table summarizes ~~the significant components of the change in revenue by product line for the quarter ended March 31, 2014, compared to the quarter ended March 31, 2015:~~

~~The following table summarizes~~ 3D printing machines sold by type for each of the ~~quarterly~~quarter and six month periods ended ~~March 31~~June 30 (refer to the “Our Machines and Machine Platforms” section of Part I Item 1 of our Annual Report on Form 10-K for the year ended December 31, 2014, for a description of 3D printing machines by type):


	2015		2014		Quarter Ended June 30,				Six Months Ended June 30,
Machine units sold:
					2015		2014		2015		2014
3D printing machine units sold:
S-Max		—		1		—		3		—		4
S-Print						—		1		—		1
S-15		—		1		—		—		—		1
M-Print*						1		—		1		—
M-Flex		1		1		1		1		2		2
Innovent*						5		—		5		—
X1-Lab		1		—		—		1		1		1

		2		3		7		6		9		9

Cost of sales for the quarter ended ~~March 31,~~June 30, 2015, was ~~$6,793~~$7,393 compared with cost of sales of ~~$5,666~~$8,705 for the quarter ended ~~March 31,~~June 30, 2014, ~~an increase~~a decrease of ~~$1,127,~~$1,312, or ~~19.9%~~15.1%. Cost of sales as a percentage of revenue was ~~100.0%~~87.0% for the quarter ended ~~March 31,~~June 30, 2015, compared with ~~77.8%~~77.7% for the quarter ended ~~March 31,~~June 30, 2014. ~~This increase~~The cost of sales decrease was principally the result of the overall decrease in revenues versus the corresponding period. In addition, we experienced a decrease in costs associated with our ExCast strategy which were incurred principally in 2014. Offsetting these decreases were increased costs associated with our global facilities transition and expansion in Germany and the United States and our ERP system deployment (both resulting in production inefficiencies), and ~~costs associated with~~ the continued development of operations at our ~~PSC~~Italy PSC. Favorable changes in ~~Italy.~~currency also impacted cost of sales (principally appreciation of the U.S. dollar against the Euro and Japanese Yen).

Gross profit for the quarter ended ~~March 31,~~June 30, 2015, was $0$1,105 compared with gross profit of ~~$1,619~~$2,496 for the quarter ended ~~March 31,~~June 30, 2014, a decrease of ~~$1,619,~~$1,391, or ~~100.0%~~55.7%. Gross profit percentage was ~~0.0%~~13.0% for the quarter ended ~~March 31,~~June 30, 2015, compared with ~~22.2%~~22.3% for the quarter ended ~~March 31,~~June 30, 2014. This decrease was principally as a result of lower revenues from an unfavorable mix of 3D printing machine sales versus sales of 3D printed and other products, materials and services ~~and~~offset by the ~~increases~~net reduction in cost of sales cited above.

Cost of sales for the six months ended June 30, 2015, was $14,186 compared with cost of sales of $14,371 for the six months ended June 30, 2014, a decrease of $185, or 1.3%. Cost of sales as a percentage of revenue was 92.8% for the six months ended June 30, 2015, compared with 77.7% for the quarter ended June 30, 2014. The cost of sales decrease was principally the result of the overall decrease in revenues versus the corresponding period. In addition, we experienced a decrease in costs associated with our ExCast strategy which were incurred principally in 2014. Offsetting these decreases were increased costs associated with our global facilities transition and expansion in Germany and the United States and our ERP system deployment (both resulting in production inefficiencies) and the continued development of operations at our Italy PSC. Favorable changes in currency also impacted cost of sales (principally appreciation of the U.S. dollar against the Euro and Japanese Yen).

Gross profit for the six months ended June 30, 2015, was $1,105 compared with gross profit of $4,115 for the six months ended June 30, 2014, a decrease of $3,010, or 73.1%. Gross profit percentage was 7.2% for the six months ended June 30, 2015, compared with 22.3% for the six months ended June 30, 2014. This decrease was principally as a result of lower revenues from an unfavorable mix of 3D printing machine sales versus sales of 3D printed and other products, materials and services offset by the net reduction in cost of sales cited above.

The following table summarizes the significant components of operating expenses for each of the ~~quarterly~~quarter and six month periods ended ~~March 31:~~June 30:


					Quarter Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014		2015		2014
Research and development	$	1,734	$	1,844	$	1,659	$	1,909	$	3,393	$	3,753
Selling, general and administrative		6,118		5,201		6,343		5,267		12,461		10,468

	$	7,852	$	7,045	$	8,002	$	7,176	$	15,854	$	14,221

Operating expenses for the quarter ended ~~March 31,~~June 30, 2015, were ~~$7,852~~$8,002 compared with operating expenses of ~~$7,045~~$7,176 for the quarter ended ~~March 31,~~June 30, 2014, an increase of ~~$807,~~$826, or 11.5%. Operating expenses as a percentage of revenue were ~~115.6%~~94.2% for the quarter ended ~~March 31,~~June 30, 2015, compared with ~~96.7%~~64.1% for the quarter ended ~~March 31,~~June 30, 2014.

Research and development expenses for the quarter ended ~~March 31,~~June 30, 2015, were ~~$1,734~~$1,659 compared with research and development expenses of ~~$1,844~~$1,909 for the quarter ended ~~March 31,~~June 30, 2014, a decrease of ~~$110,~~$250, or ~~6.0%~~13.1%. This decrease was primarily due to a reduction in costs associated with materials qualification and machine development activities, principally materials usage, offset by an increase in personnel costs based on an increased headcount.

Selling, general and administrative expenses for the quarter ended ~~March 31,~~June 30, 2015, were ~~$6,118~~$6,343 compared with selling, general and administrative expenses of ~~$5,201~~$5,267 for the quarter ended ~~March 31,~~June 30, 2014, an increase of ~~$917,~~$1,076, or ~~17.6%~~20.4%. This increase was principally due to personnel costs associated with an increased headcount (including salaries, related benefits and travel expenses) and other growth-related expenses (consulting and professional fees, including costs associated with the deployment of our new ERP system), as well as an increase in the provision for bad debts associated with certain customer balances estimated as uncollectible.

Operating expenses for the six months ended June 30, 2015, were $15,854 compared with operating expenses of $14,221 for the six months ended June 30, 2014, an increase of $1,633, or 11.5%. Operating expenses as a percentage of revenue were 103.7% for the six months ended June 30, 2015, compared with 76.9% for the six months ended June 30, 2014.

Research and development expenses for the six months ended June 30, 2015, were $3,393 compared with research and development expenses of $3,753 for the six months ended June 30, 2014, a decrease of $360, or 9.6%. This decrease was primarily due to a reduction in costs associated with materials qualification and machine development activities, principally materials usage, offset by an increase in personnel costs based on an increased headcount.

Selling, general and administrative expenses for the six months ended June 30, 2015, were $12,461 compared with selling, general and administrative expenses of $10,468 for the six months ended June 30, 2014, an increase of $1,993, or 19.0%. This increase was principally due to personnel costs associated with an increased headcount (including salaries, related benefits and travel expenses) and certain employee termination costs and other growth-related expenses (consulting and professional fees, including costs associated with the deployment of our new ERP system)., as well as an increase in the provision for bad debts associated with certain customer balances estimated as uncollectible.

Interest expense for the quarter ended ~~March 31,~~June 30, 2015, was ~~$28~~$30 compared with interest expense of ~~$29~~$45 for the quarter ended ~~March 31,~~June 30, 2014, a decrease of ~~$1,~~$15, or ~~3.4%~~33.3%. ~~This~~

Interest expense for the six months ended June 30, 2015, was $58 compared with interest expense of $74 for the six months ended June 30, 2014, a decrease of $16, or 21.6%.

The decrease for both periods was principally due to a lower average outstanding debt balance for the quarter and six months ended ~~March 31,~~June 30, 2015, as compared to the quarter and six months ended ~~March 31,~~June 30, 2014.

Other ~~income~~expense (income) – net for the quarter ended ~~March 31,~~June 30, 2015, was ~~$150~~$71 compared with other ~~income~~expense (income) – net of ~~$92~~($63) for the quarter ended ~~March 31,~~June 30, 2014, ~~an increase~~a decrease of ~~$58, or 63.0%.~~$134. This ~~increase~~decrease was principally due to ~~net foreign exchange gains on certain transactions during the quarter ended March 31, 2015 (U.S. dollar appreciation versus the Euro) offset by~~ a decrease in interest income and other financing activity benefits, mostly due to a lower average cash and cash equivalents balance for the quarter ended ~~March 31,~~June 30, 2015, as compared to the quarter ended ~~March 31,~~June 30, 2014 and net foreign exchange losses on certain transactions during the quarter ended June 30, 2015 (U.S. dollar depreciation versus the Euro).

Other expense (income) – net for the six months ended June 30, 2015, was ($79) compared with other expense (income) – net of ($155) for the six months ended June 30, 2014, a decrease of $76. This decrease was principally due to a decrease in interest income and other financing activity benefits, mostly due to a lower average cash and cash equivalents balance for the six months ended June 30, 2015, as compared to the six months ended June 30, 2014. This decrease was offset by net foreign exchange gains on certain transactions during the six months ended June 30, 2015 (U.S. dollar appreciation versus the Euro).

The (benefit) provision for income taxes for the quarters ended ~~March 31,~~June 30, 2015 and 2014, was ($~~59)~~100) and ~~$164,~~$3, respectively. The effective tax rate for the quarters ended ~~March 31,~~June 30, 2015 and 2014, was ~~0.8%~~1.4% (benefit on a loss) and ~~3.1%~~0.1% (provision on a loss), respectively. For each of the quarters ended ~~March 31,~~June 30, 2015 and 2014, the effective tax rate differs from the U.S. federal statutory rate of 34.0% primarily due to net changes in valuation allowances for the period.

The (benefit) provision for income taxes for the six months ended June 30, 2015 and 2014, was ($159) and $167, respectively. The effective tax rate for the six months ended June 30, 2015 and 2014, was 1.1% (benefit on a loss) and 1.7% (provision on a loss), respectively. For each of the six months ended June 30, 2015 and 2014, the effective tax rate differs from the U.S. federal statutory rate of 34.0% primarily due to net changes in valuation allowances for the period.

We have provided a valuation allowance for our net deferred tax assets as a result of our inability to generate consistent net operating profits in jurisdictions in which we operate. As such, any benefit from deferred taxes in either quarterly period has been fully offset by changes in the valuation allowance for net deferred tax assets. We continue to assess our future taxable income by jurisdiction based on (i) our recent historical operating results, (ii) the expected timing of reversal of temporary differences, (iii) various tax planning strategies that we may be able to enact in future periods, (iv) the impact of potential operating changes on our business and (v) our forecast results from operations in future periods based on available information at the end of each reporting period. To the extent that we are able to reach the conclusion that deferred tax assets are realizable based on any combination of the above factors, a reversal of existing valuation allowances may occur.

Our results of operations and financial condition are presented based on historical cost. While it is difficult to accurately measure the impact of inflation due to the imprecise nature of the estimates required, we believe the effects of inflation, if any, on our results of operations and financial condition are not significant.

We have incurred net losses in each of our annual periods since our inception. In addition, we incurred a net ~~loss~~losses of approximately ~~$7,671~~$6,898 and $14,569 for the quarter and six months ended ~~March 31,~~June 30, 2015. Prior to our Reorganization, we operated as a limited liability company and were substantially supported by the continued financial support provided by our majority member. In connection with the completion of our initial public offering and secondary public offering in 2013, we received unrestricted net proceeds from the sale of our common stock of approximately $157,311. We believe that our existing capital resources will be sufficient to support our operations through ~~April~~July 1, 2016.

We have additionally considered the impact of continued operating losses and cash flow deficiencies on the carrying value of goodwill and long-lived assets held ~~and used~~for use by us. Based on the assessment completed by management, we did not record an impairment loss during the quarter or six months ended ~~March 31,~~June 30, 2015. Assessing the recoverability of goodwill and long-lived assets held for use requires significant judgments and estimates by management. A deterioration in general economic conditions, negative developments in equity and credit markets, a significant decline in our market capitalization, adverse changes in the markets in which we operate, increases in input costs that have a negative effect on earnings and cash flows, or a trend of negative or declining cash flows, among other indicators, could cause a future assessment to be performed which may result in an impairment of goodwill, long-lived assets held for use, or both, resulting in ana material adverse effect on our financial position and results of operations.

We expect that our existing capital resources will be sufficient to meet our 2015 operating plan. If we anticipate that our actual results will differ from our 2015 operating plan, we believe we have sufficient capabilities to enact cost savings measures to preserve capital. Further, we may seek to raise capital to support our growth through debt, equity or other alternatives or a combination thereof.

The following table summarizes the significant components of cash flows for each of the ~~quarterly~~six month periods ended ~~March 31~~June 30 and our cash and cash equivalents balance at ~~March 31,~~June 30, 2015 and December 31, 2014:


	2015			2014			2015			2014
Cash used for operating activities	$	(4,096	)	$	(6,326	)	$	(8,106	)	$	(18,383	)
Cash used for investing activities		(1,769	)		(14,371	)		(2,831	)		(23,731	)
Cash used for financing activities		(157	)		(185	)		(259	)		(354	)
Effect of exchange rate changes on cash and cash equivalents		(79	)		27			(226	)		35

Net change in cash and cash equivalents	$	(6,101	)	$	(20,855	)	$	(11,422	)	$	(42,433	)


	March 31, 2015			December 31, 2014			June 30, 2015			December 31, 2014
Cash and cash equivalents	$	30,101		$	36,202		$	24,780		$	36,202

Cash used for operating activities for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, was ~~$4,096~~$8,106 compared with ~~$6,326~~$18,383 for the ~~quarter~~six months ended ~~March 31,~~June 30, 2014. The decrease of ~~$2,230,~~$10,277, or ~~35.3%~~55.9%, was mostly attributed to an increase in cash flows from net changes in assets and liabilities principally impacted by ~~(i)~~ cash inflows (versus outflows) for accounts receivable from customers based on the timing of payment (mostly the timing of receipt of installment payments on 3D printing machines), (ii) a decrease in outflows associated with inventories (mostly due to differing production schedules considering the anticipated move of our operations in Germany in 2014 which required an acceleration of production activities during our 2014 first half) and ~~(iii)~~ an increase in ~~deposits~~prepayments received from customers on 3D printing machine sale contracts. These increases were offset by cash outflows associated with an increase in our net loss and an increase in ~~deposits paid to vendors for certain 3D printing machine components.~~outflows associated with inventories based on the timing of our production schedules between periods.

Cash used for investing activities for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, was ~~$1,769~~$2,831 compared with ~~$14,371~~$23,731 for the ~~quarter~~six months ended ~~March 31,~~June 30, 2014. The decrease of ~~$12,602,~~$20,900, or ~~87.7%~~88.1%, was primarily attributed to a decrease in capital expenditures, mostly due to (i) spending associated with the expansion of our facilities in Germany (spending complete at the end of 2014) and (ii) the acquisition of the land and building associated with our Japanese subsidiary (completed during the quarter ended June 30, 2014) and cash paid for acquisitions closed during the quarter ended March 31, 2014 (MAM and MWT).

Our remaining 2015 capital expenditures plan includes approximately ~~$3,000~~$1,000 to ~~$5,000~~$2,000 in spending associated with continued facilities expansions and our ERP system deployment.

Cash used for financing activities for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, was ~~$157~~$259 compared with ~~$185~~$354 for the ~~quarter~~six months ended ~~March 31,~~June 30, 2014.

Uses of cash for the ~~quarter~~six months ended ~~March 31,~~June 30, 2015, included principal payments on outstanding debt and capital and financing leases.

Uses of cash for the ~~quarter~~six months ended ~~March 31,~~June 30, 2014, included principal payments on outstanding debt (including the payoff of debt assumed in connection with the acquisition of MAM) and capital and financing leases. These uses were offset by cash proceeds from the exercise of employee stock options.

Refer to Note 1 to the condensed consolidated financial statements in Part I, Item 1 of this Quarterly Report on Form 10-Q.

Refer to Note 1 of the consolidated financial statements in Part I, Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2014.

We are exposed to market risk from fluctuations in foreign currency exchange rates which may adversely affect our results of operations and financial condition. We seek to minimize these risks through regular operating and financing activities and, when we consider it to be appropriate, through the use of derivative financial instruments. We do not purchase, hold or sell derivative financial instruments for trading or speculative purposes.

The local currency is the functional currency for significant operations outside of the United States. The determination of the functional currency of an operation is made based on the appropriate economic and management indicators.

Foreign currency assets and liabilities are translated into their U.S. dollar equivalents based on year end exchange rates, and are included in stockholders’ equity as a component of other comprehensive income (loss). Revenues and expenses are translated at average exchange rates. Transaction gains and losses that arise from exchange rate fluctuations are charged to operations as incurred, except for gains and losses associated with intercompany receivables and payables for which settlement is not planned or anticipated in the foreseeable future, which are included in accumulated other comprehensive loss in the consolidated balance sheet.

We transact business globally and are subject to risks associated with fluctuating foreign exchange rates. Approximately ~~57.3%~~36.9% and ~~54.8%~~61.7% of our consolidated revenue was derived from transactions outside the United States for the quarters ended ~~March 31,~~June 30, 2015 and 2014, respectively. Approximately 46.0% and 59.0% of our consolidated revenue was derived from transactions outside the United States for the six months ended June 30, 2015 and 2014, respectively. This revenue is generated primarily from wholly-owned subsidiaries operating in their respective countries and surrounding geographic areas. This revenue is primarily denominated in each subsidiary’s local functional currency, including the Euro and Japanese Yen. A hypothetical change in foreign exchange rates of +/- 10.0% for the quarter and six months ended ~~March 31,~~June 30, 2015, would result in an increase (decrease) in revenue of approximately ~~$400.~~$300 and $700, respectively. These subsidiaries incur most of their expenses (other than intercompany expenses) in their local functional currencies.

At ~~March 31,~~June 30, 2015, we held approximately ~~$30,101~~$24,780 in cash and cash equivalents, of which approximately ~~$28,743~~$19,861 was held by our United States parent in U.S. dollars.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of ~~March 31,~~June 30, 2015. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost benefit relationship of possible controls and procedures. Based on this evaluation, management concluded as of ~~March 31,~~June 30, 2015, that our disclosure controls and procedures were not effective at the reasonable assurance level due to material weaknesses in our internal control over financial reporting as discussed in the Company’s Annual Report on Form 10-K filed on March 26, 2015.

As a result of material weaknesses described in our Annual Report on Form 10-K, we performed additional analysis and other post-closing procedures to ensure our condensed consolidated financial statements were prepared in accordance with GAAP. Accordingly, management believes that the financial statements and related notes thereto included in this report fairly present, in all material respects, our financial condition, results of operations and cash flows for the periods presented.

During the quarter and six months ended ~~March 31,~~June 30, 2015, with the oversight of senior management and our audit committee, we continued to take steps and additional measures to remediate the underlying causes of the identified material weaknesses including:

We can provide no assurance at this time that management will be able to report that our internal control over financial reporting is effective as of December 31, 2015. As an emerging growth company, we are exempt from the requirement to obtain an attestation report from our independent registered public accounting firm on the assessment of our internal controls pursuant to the Sarbanes-Oxley Act of 2002 until such time that we no longer qualify as an emerging growth company in accordance with the JOBS Act.

The disclosure in this item updates and supplements the risk factors set forth in Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2014.

~~We are~~ExOne machine customer contractual requirements often have specific, individual needs that may in turn impact the period in which we recognize the revenue under accounting principles generally accepted in the ~~process~~United States of ~~remediating the three material weaknesses in internal controls over financial reporting.~~America relating to that machine purchase.

~~As further discussed~~Once a customer makes the decision to purchase a machine from us, we may then be required to address specific, individual factors relating, among other things, to that customer’s purchase, its intended use of that machine or relating to the installation of that machine in the customer’s facilities. These specific, individual requirements are often required by the customer to be included in our ~~Annual Report on Form 10-K for~~commercial agreements relating to the ~~year ended December 31, 2014,~~purchase. As a result, our responsiveness to our customers’ specific requirements has the potential to impact the period in which we ~~have put into place a comprehensive plan~~recognize the revenue relating to remediate the underlying causes of our material weaknesses in financial reporting with the oversight of senior management and our audit committee. Our plan is to continue to take the following additional steps and implement the following measures to remediate the underlying causes of the identified material weaknesses:that machine purchase.

This includes a detailed review of our existing processes, improvements to the design of our internal controls (including conversion of historically manual control activities to automated control activities), updating documentation related to our business process flows, internal testing of operating effectiveness of our controls and remediation activities, as necessary. This process began in mid-2014 and we expect it to continue during 2015 and beyond as a means of continuous improvement.

On January 1, 2015, we implemented the first phase of a new ERP system for our Europe operations. Despite certain difficulties encountered in the initial implementation phase of this project, resulting in a delay of the filing of our Quarterly Report on Form 10-Q for the period ended March 31, 2015, we believe that this system, when fully implemented, provides a substantial upgrade in operational and financial reporting as compared to our legacy systems. We continue to address the difficulties encountered in the initial implementation in a variety of ways, including through the direct hire of personnel and collaboration with external consultants, both with systems expertise, in an effort to resolve the identified issues in a timely and efficient manner. Our 2015 information technology plan includes additional upgrades or enhancements of both this system, as well as our other existing information technologies with the overall goal of a simple, common and global platform for processing, recording and analyzing financial and operational data.

In 2015, we hired a new Chief Financial Officer and a new Head of Controlling for our Europe operations, both of whom possess extensive knowledge of GAAP and experience in working for a United States based multi-national operation. As part of our redesign of our global reporting structure and responsibilities, we plan to add additional personnel with requisite GAAP experience to both our United States and Europe operations during 2015.

~~We can provide no assurance at this time that management will be able to report that our internal control over financial reporting is effective as of December 31, 2015.~~

The Exhibits listed on the accompanying Index to Exhibits are filed as part of this Quarterly Report on Form 10-Q.

Pursuant to the requirements of Section 13 or 15(d) of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

The agreements and other documents filed as exhibits to this report are not intended to provide factual information or other disclosure other than with respect to the terms of the agreements or other documents themselves, and you should not rely on them for that purpose. In particular, any representations and warranties made by us in these agreements or other documents were made solely within the specific context of the relevant agreement or document and may not describe the actual state of affairs as of the date they were made or at any other time.


*Level 1*		Observable inputs such as quoted prices in active markets for identical investments that the Company has the ability to access.

*Level 2*		Inputs include:

		Quoted prices for similar assets or liabilities in active markets;

		Quoted prices for identical or similar assets or liabilities in inactive markets;

		Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

		Inputs that are derived principally from, or corroborated by, observable market data by correlation or other means.

*Level 3*		Inputs that are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability.


	3D printing machines			3D printed and other products, materials and services			Total
Six Months Ended June 30, 2014	$	8,398		$	10,088		$	18,486
Change in revenue attributed to:
Volume		—			2,595			2,595
Pricing and sales mix		(4,629	)		—			(4,629	)
Foreign currency		(246	)		(915	)		(1,161	)

		(4,875	)		1,680			(3,195	)

Six Months Ended June 30, 2015	$	3,523		$	11,768		$	15,291


	3D printing machines			3D printed and other products, materials and services			Total
Quarter Ended March 31, 2014	$	2,439		$	4,846		$	7,285
Change in revenue attributed to:
Volume		(706	)		1,247			541
Pricing and sales mix		(472	)		—			(472	)
Foreign currency		(179	)		(382	)		(561	)

		(1,357	)		865			(492	)

Quarter Ended March 31, 2015	$	1,082		$	5,711		$	6,793


The ExOne Company

By:		/s/ S. Kent Rockwell
		S. Kent Rockwell
		Chief Executive Officer (Principal Executive Officer)

Date:		~~June 12,~~August 10, 2015

By:		/s/ Brian W. Smith
		Brian W. Smith
		Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

Date:		~~June 12,~~August 10, 2015


Exhibit Number	Description	Method of Filing

31.1	Rule 13(a)-14(a) Certification of Principal Executive Officer.		Filed herewith.

31.2	Rule 13(a)-14(a) Certification of Principal Financial Officer.		Filed herewith.

32	Section 1350 Certification of Principal Executive Officer and Principal Financial Officer.		Filed herewith.

101.INS	XBRL Instance Document.		Filed herewith.

101.SCH	XBRL Taxonomy Extension Schema Document.		Filed herewith.

101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.		Filed herewith.

101.DEF	XBRL Taxonomy Extension Definition Linkbase Document.		Filed herewith.

101.LAB	XBRL Taxonomy Extension Label Linkbase Document.		Filed herewith.

101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.		Filed herewith.

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