For the quarterly period ended March 31, 2019

Commission File Number 001-36632

 EMCORE Corporation

Registrant's telephone number, including area code:  (626) 293-3400

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. þ 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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). þ Yes ¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definition of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. ¨ Large accelerated filer þ Accelerated filer ¨ Non-accelerated filer þ Smaller reporting company ¨ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

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

As of May 6, 2019, the number of shares outstanding of our no par value common stock totaled 27,856,061.

For The Quarterly Period Ended March 31, 2019

As of March 31, 2019 and September 30, 2018

For the three and six months ended March 31, 2019 and 2018

EMCORE Corporation (referred to herein, together with its subsidiaries, as the “Company,” “we,” “our,” or “EMCORE”) was established in 1984 as a New Jersey corporation. The Company became publicly traded in 1997 and is listed on the Nasdaq stock exchange under the ticker symbol EMKR. EMCORE pioneered the linear fiber optic transmission technology that enabled the world’s first delivery of Cable TV directly on fiber, and today is a leading provider of advanced Mixed-Signal Optics products that enable communications systems and service providers to meet growing demand for increased bandwidth and connectivity. The Mixed-Signal Optics technology at the heart of our broadband communications products is shared with our fiber optic gyros and inertial sensors to provide the aerospace and defense markets with state-of-the-art navigation systems technology. With both analog and digital circuits on multiple chips, or even a single chip, the value of Mixed-Signal device solutions are often far greater than traditional digital applications and requires a specialized expertise held by EMCORE which is unique in the optics industry.

We currently have one reporting segment: Fiber Optics. This segment is comprised of three product lines: Broadband (which includes Cable TV (“CATV”) systems and components, radio frequency over glass (“RFoG”) products, satellite/microwave communications products and wireless communication products), Chip Devices and Navigation Systems.

Effective October 1, 2018, we adopted the requirements of Topic 606 using the modified retrospective method. The adoption of Topic 606 did not have an impact on the Company’s condensed consolidated financial statements.

Our significant accounting policies are detailed in “Note 2 - Summary of Significant Accounting Policies” of our Annual Report on Form 10-K for the year ended September 30, 2018. Significant changes to our accounting policies as a result of adopting Topic 606 are discussed below:

Revenue Recognition - To determine the proper revenue recognition, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) we satisfy a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer.

Receivables, Net - Receivables, net, include amounts billed and currently due from customers. The amounts due are stated at their net estimated realizable value. Payments are generally due within 90 days or less of invoicing and do not include a significant financing component. We maintain an allowance for doubtful accounts to provide for the estimated amount of receivables that will not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience, the age of outstanding receivables and collateral to the extent applicable. Receivables, net, totaled $20.1 million and $19.3 million at March 31, 2019 and September 30, 2018, respectively.

Remaining Performance Obligations - Remaining performance obligations represent the transaction price of firm orders for long-term contracts which control has not transferred to the customer. As of March 31, 2019, the aggregate amount of the transaction price allocated to remaining performance obligations was $3.2 million. The Company expects to recognize revenue on approximately 100% of the remaining performance obligations over the next year.

Product Warranty Reserves - We provide our customers with warranty claims for certain products and warranty-related services are not considered a separate performance obligation. Pursuant to Accounting Standards Codification (“ASC”) 450, Contingencies, we make estimates of product warranty expense using historical experience rates and accrue estimated warranty expense as a cost of revenue. We estimate the costs of our warranty obligations based on historical experience of known product failure rates and anticipated rates of warranty claims, use of materials to repair or replace defective products, and service delivery costs incurred in correcting the product issues. In addition, from time to time, specific warranty accruals may be made if unforeseen technical problems arise.

Disaggregation of Revenue - Revenue is classified based on the product line of business. For additional information on the disaggregated revenues by geographical region, see Note 14 - Geographical Information in the notes to the condensed consolidated financial statements.

The Company's restricted cash includes cash balances which are legally or contractually restricted to use. The Company's restricted cash is included in current assets as of March 31, 2019, September 30, 2018 and March 31, 2018.

ASC Topic 820 (“ASC 820”), Fair Value Measurements, establishes a valuation hierarchy for disclosure of the inputs to valuation techniques used to measure fair value. This standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value:

The following table summarizes changes in the allowance for doubtful accounts for the three and six months ended March 31, 2019 and 2018.

The non-current inventory balance of $1.1 million and $1.4 million as of March 31, 2019 and September 30, 2018, respectively, is comprised entirely of raw materials which we acquired as part of a last time purchase as a result of the vendor announcing it would cease manufacturing a part. During the three and six months ended March 31, 2019, we recorded a $0.1 million and $0.5 million reserve, respectively, on non-current inventory due to the decline in sales and future demand of the inventory.

Compensation: Compensation is primarily comprised of accrued employee salaries, taxes and benefits.

Severance and restructuring accruals: On December 4, 2018, the Company and Jikun Kim, the Company's former Chief Financial Officer, entered into a Separation and General Release Agreement (the “Separation Agreement”) pursuant to which the Company and Mr. Kim agreed that he would cease service with the Company effective as of December 31, 2018 (the “Separation Date”). The Separation Agreement provided for, among other things, the continuation of his base salary for a period of two months following the Separation Date and a lump sum payment of $22,875 in lieu of any cash bonus payment under the Company’s Fiscal Year 2018 Bonus Plan, in each case subject to his execution and non-revocation of a general release agreement releasing the Company from any liability or obligation to him and compliance with certain confidentiality, non-solicitation and other restrictive covenants as provided in the Separation Agreement. Mr. Kim’s outstanding equity awards that remained unvested as of the Separation Date were cancelled and terminated. The Company recorded a charge of approximately $0.1 million in the six months ended March 31, 2019 related to this Separation Agreement.

Warranty: The following table summarizes the changes in our product warranty accrual accounts:

On July 27, 2017, we entered into a Ninth Amendment of the Credit Facility which adjusted the interest rate to LIBOR plus 1.75%. On November 7, 2018, we entered into a Tenth Amendment of the Credit Facility which extended the maturity date of the facility to November 2021. The Credit Facility currently provides us with a revolving credit line of up to $15.0 million, subject to a borrowing base formula, that can be used for working capital requirements, letters of credit, acquisitions, and other general corporate purpose subject to a requirement, for certain specific uses, that the Company have liquidity of at least $25.0 million after such use.

As of March 31, 2019, there were no amounts outstanding under this Credit Facility and the Company was in compliance with all financial covenants. Also, as of March 31, 2019, the Credit Facility had approximately $0.5 million reserved for one outstanding stand-by letter of credit and $5.0 million available for borrowing. As of May 6, 2019, there was no outstanding balance under this Credit Facility and $0.5 million reserved for one outstanding stand-by letter of credit.

For the three months ended March 31, 2019 and 2018, the Company recorded income tax (expense) benefit of approximately $(15,000) and $0.2 million, respectively. Income tax expense for the three months ended March 31, 2019 is primarily comprised of state minimum tax expense. Income tax benefit for the three months ended March 31, 2018 is primarily comprised of the effect of the December 22, 2017 Tax Cuts and Jobs Act (the “Tax Act”) which eliminated Alternative Minimum Taxes (“AMT”) and resulted in a refund to the Company of amounts paid in prior fiscal years, state minimum tax expense, and foreign tax expense included within continuing operations. For the six months ended March 31, 2019 and 2018, the Company recorded income tax (expense) benefit of approximately $(30,000) and $0.5 million, respectively. Income tax expense for the six months ended March 31, 2019 is primarily comprised of state minimum tax expense. Income tax benefit for the six months ended March 31, 2018 is primarily comprised of the effect of the December 22, 2017 “Tax Act” which eliminated AMT and resulted in a refund to the Company of amounts paid in prior fiscal years.

For the three months ended March 31, 2019 and 2018, the effective tax rate on continuing operations was 0% and (5.2)%, respectively. The lower tax rate for the three months ended March 31, 2019 is primarily due to the operating loss and state minimum tax expense. The higher beneficial tax rate for the three months ended March 31, 2018 was primarily due to the effect of the Tax Act, which resulted in a credit to the Company on future tax payments for past AMT amounts paid and the fiscal year 2018 operating loss. Income tax expense is comprised of estimated alternative minimum tax as prescribed by ASC 740 and foreign tax expense. The Company uses some estimates to forecast permanent differences between book and tax accounting.

For the six months ended March 31, 2019 and 2018, the effective tax rate on continuing operations was 0% and (13.7)%, respectively. The lower tax rate for the six months ended March 31, 2019 is primarily due to the operating loss and state minimum tax expense. The higher beneficial tax rate for the six months ended March 31, 2018 was primarily due to the effect of the Tax Act, which resulted in a credit to the Company on future tax payments for past AMT amounts paid and the current period operating loss. Income tax expense is comprised of estimated alternative minimum tax as prescribed by ASC 740 and foreign tax expense. The Company uses some estimates to forecast permanent differences between book and tax accounting.

We have not provided for income taxes on non-U.S. subsidiaries' undistributed earnings as of March 31, 2019 because we plan to indefinitely reinvest the unremitted earnings of our non-U.S. subsidiaries and all of our non-U.S. subsidiaries historically have negative earnings and profits.

All deferred tax assets have a full valuation allowance at March 31, 2019. However, on a quarterly basis, the Company will evaluate the positive and negative evidence to assess whether the more likely than not criteria, mandated by ASC 740, has been satisfied in determining whether there will be further adjustments to the valuation allowance.

During the three and six months ended March 31, 2019 and 2018, there were no material increases or decreases in unrecognized tax benefits. As of March 31, 2019 and September 30, 2018, we had approximately $0.5 million and $0.4 million, respectively, of interest and penalties accrued as tax liabilities on our balance sheet. We believe that it is reasonably possible that none of the uncertain tax positions will be paid or settled within the next 12 months. Interest that is accrued on tax liabilities is recorded within interest expense on the condensed consolidated statements of operations.

Operating Lease Obligations: We lease certain facilities and equipment under non-cancelable operating leases. Operating lease amounts exclude renewal option periods, property taxes, insurance, and maintenance expenses on leased properties. Our facility leases typically provide for rental adjustments for increases in base rent (up to specific limits), property taxes, insurance, and general property maintenance that would be recorded as rent expense. Rent expense was approximately $0.3 million for the three months ended March 31, 2019 and 2018. Rent expense was approximately $0.6 million for the six months ended March 31, 2019 and 2018. There are no off-balance sheet arrangements other than our operating leases.

Asset Retirement Obligation: We have known conditional Asset Retirement Obligations (“AROs”) such as certain asset decommissioning and restoration of rented facilities to be performed in the future. Our ARO includes assumptions related to renewal option periods for those facilities where we expect to extend lease terms. The Company recognizes its estimate of the fair value of its ARO in the period incurred in long-term liabilities. The fair value of the ARO is also capitalized as property, plant and equipment.

In future periods, the ARO is accreted for the change in its present value and capitalized costs are depreciated over the useful life of the related assets. If the fair value of the estimated ARO changes, an adjustment will be recorded to both the ARO and the asset retirement capitalized cost. Revisions in estimated liabilities can result from revisions of estimated inflation rates, changes in estimated retirement costs, and changes in the estimated timing of settling the ARO. The fair value of our ARO was estimated by discounting projected cash flows over the estimated life of the related assets using credit adjusted risk-free rates which ranged from 1.20% to 4.20%. There was no ARO settled during the three months ended March 31, 2019 and 2018. Accretion expense of $13,000 and $16,000 was recorded during the three months ended March 31, 2019 and 2018, respectively. Accretion expense of $27,000 and $33,000 was recorded during the six months ended March 31, 2019 and 2018, respectively.

EMCORE leases its primary facility in Alhambra, California covering six buildings where manufacturing, research and development, and general and administrative work is performed. In March 2019, amendments to leases for five of the six buildings were signed, extending the terms of the leases for these buildings for an additional three years through September 2023 plus a three year option to extend the leases through September 2026. In connection with the lease agreement, the Company has recorded an ARO liability at March 31, 2019 and September 30, 2018 of $1.8 million. The lease related to the sixth building expired in 2011, and this building is being occupied on a month-to-month basis.

In May 2016 (and retroactively effective on February 1, 2016), the Company entered into a five year lease agreement for facilities in Beijing, China where some manufacturing work is to be performed. In connection with the lease agreement, the Company has recorded an ARO liability in the amount of $0.1 million at March 31, 2019 and September 30, 2018.

In February 2019, the lease and related obligations, including ARO, at our former facility in Ivyland, Pennsylvania was terminated, resulting in no payment by the Company. As a result of this termination, the Company reduced its ARO associated with the former Pennsylvania facility by $40,000 and recorded a gain on the termination in the three and six months ended March 31, 2019.

Indemnifications: We have agreed to indemnify certain customers against claims of infringement of intellectual property rights of others in our sales contracts with these customers. Historically, we have not paid any claims under these indemnification obligations.

Legal Proceedings: We are subject to various legal proceedings, claims, and litigation, either asserted or unasserted, that arise in the ordinary course of business. The outcome of these matters is currently not determinable and we are unable to estimate a range of loss, should a loss occur, from these proceedings. The ultimate outcome of legal proceedings involves judgments, estimates and inherent uncertainties and the results of these matters cannot be predicted with certainty. Professional legal fees are expensed when incurred. We accrue for contingent losses when such losses are probable and reasonably estimable. In the event that estimates or assumptions prove to differ from actual results, adjustments are made in subsequent periods to reflect more current information. Should we fail to prevail in any legal matter or should several legal matters be resolved against the Company in the same reporting period, then the financial results of that particular reporting period could be materially affected.

We provide long-term incentives to eligible officers, directors, and employees in the form of equity-based awards. We maintain four equity incentive compensation plans, collectively described below as our “Equity Plans”:

Most of our stock options vest and become exercisable over a four to five year period and have a contractual life of 10 years. Certain stock options awarded are intended to qualify as incentive stock options pursuant to Section 422A of the Internal Revenue Code.

The following table summarizes stock option activity under the Equity Plans for the six months ended March 31, 2019:

(*) Intrinsic value for stock options represents the “in-the-money” portion or the positive variance between a stock option's exercise price and the underlying stock price. For the six months ended March 31, 2018, the intrinsic value of options exercised was $13,000.

As of March 31, 2019, there was approximately $14,000 of unrecognized stock-based compensation expense related to non-vested stock options granted under the Equity Plans which is expected to be recognized over an estimated weighted average life of 1.6 years.

Valuation Assumptions

There were no stock option grants for the six months ended March 31, 2019 and 2018.

Time-based restricted stock units (“RSUs”) and restricted stock awards (“RSAs”) granted to employees under the 2010 Plan, 2012 Plan or 2019 Plan typically vest over 3 to 4 years and are subject to forfeiture if employment terminates prior to the lapse of the restrictions. RSUs are not considered issued or outstanding common stock until they vest. RSAs are considered issued and outstanding on the grant date and are subject to forfeiture if specified vesting conditions are not satisfied.

The following table summarizes the activity related to RSUs and RSAs subject to time-based vesting requirements for the six months ended March 31, 2019:

As of March 31, 2019, there was approximately $3.8 million of remaining unamortized stock-based compensation expense associated with RSUs, which will be expensed over a weighted average remaining service period of approximately 2.7 years. The 0.7 million outstanding non-vested and expected to vest RSUs have an aggregate intrinsic value of approximately $2.7 million and a weighted average remaining contractual term of 1.6 years. For the six months ended March 31, 2019 and 2018, the intrinsic value of RSUs vested was approximately $0.9 million and $2.0 million, respectively. For the six months ended March 31, 2018, the weighted average grant date fair value of RSUs granted was $6.53 per share.

As of March 31, 2019, there was approximately $34,000 of remaining unamortized stock-based compensation expense associated with RSAs, which will be expensed over a weighted average remaining service period of approximately 1.5 years.

Performance based restricted stock units (“PSUs”) and performance based shares of restricted stock (“PRSAs”) granted to employees under the 2012 Plan or 2019 Plan typically vest over 1 to 3 years and are subject to forfeiture in whole, if employment terminates, or in whole or in part, if specified vesting conditions are not satisfied, in each case prior to vesting. PSUs are not considered issued or outstanding common stock until they vest. PRSAs are considered issued and outstanding on the grant date (at 200% of the target number of shares) and are subject to forfeiture if specified vesting conditions are not satisfied. PSUs and PRSAs that are granted to our executive officers and key employees are provided as long-term incentive compensation that is based on relative total shareholder return, which measures our performance against that of our competitors.

The following table summarizes the activity related to PSUs and PRSAs for the six months ended March 31, 2019: