Exhibit 99.1

Incyte Reports 2017 Third-Quarter Financial Results and
 Updates on Key Clinical Programs

·                  $304 million of 2017 third-quarter net product revenues from Jakafi® (ruxolitinib), representing 36 percent growth over the same period last year

·                  Progress across the portfolio as multiple candidates enter late-stage development trials

·                  Two recent collaborations further expand potential and scope of Incyte’s combination immunotherapy development activities

Conference Call and Webcast Scheduled Today at 10:00 a.m. ET

WILMINGTON, DE, October 31, 2017 — Incyte Corporation (Nasdaq: INCY) today reports 2017 third-quarter financial results, highlighting 38 percent year-on-year growth in product-related revenue, driven by increased sales of Jakafi® (ruxolitinib) in the U.S. and Iclusig® (ponatinib) in Europe, and royalties from ex-U.S. sales of Jakavi® (ruxolitinib) by Novartis and Olumiant® (baricitinib) by Lilly.

“We exit the third quarter of 2017 with excellent momentum across the whole business,” stated Hervé Hoppenot, Incyte’s Chief Executive Officer. “Jakafi and Iclusig continue to outperform our expectations, and we are now evaluating ten different indications across our five late-stage development candidates. We are also on track to initiate the next wave of pivotal trials planned for the epacadostat development program. We are striving to build Incyte into a world-class biopharmaceutical company, and we are very pleased to report another quarter of significant progress towards that goal.”

Portfolio Update

Cancer — Targeted Therapies

The REACH1 pivotal trial studying ruxolitinib in patients with steroid-refractory acute graft-versus-host disease (GVHD) is on track to deliver results in the first half of 2018. If successful, Incyte anticipates submitting an sNDA seeking accelerated approval of ruxolitinib in this indication during 2018. Three additional pivotal trials are evaluating the role of JAK inhibition in GVHD (REACH2 and REACH3 with ruxolitinib, and GRAVITAS-301 with itacitinib).

The FIGHT and CITADEL programs evaluating INCB54828 (FGFR1/2/3) and INCB50465 (PI3Kδ), respectively, now include multiple different indications in potentially-pivotal trials.

Cancer — Immune Therapies

The pivotal Phase 3 ECHO-301 trial of epacadostat plus pembrolizumab in patients with unresectable or metastatic melanoma is now fully-recruited and data are expected in the first half of 2018.

In collaboration with Merck and Bristol-Myers Squibb, preparations for the next wave of eight pivotal Phase 3 trials of epacadostat plus PD-1 antagonists continue as planned. Initiation of these trials are expected before the end of 2017.

In October, Incyte and AstraZeneca announced an expanded clinical trial collaboration and the companies intend to initiate a Phase 3 trial of epacadostat in combination with AstraZeneca’s PD-L1 antagonist durvalumab in patients with Stage III non-small cell lung cancer.

In October, Incyte and MacroGenics announced an exclusive global collaboration and license agreement for MacroGenics’ MGA012, an investigational monoclonal antibody that inhibits PD-1. Under this agreement, Incyte will obtain exclusive worldwide rights for the development and commercialization of MGA012 in all indications.

Notes:

(1)         INCB01158 co-developed with Calithera

(2)         INCSHR1210 licensed from Hengrui

(3)         INCAGN1876 & INCAGN1949 from discovery alliance with Agenus

Non-oncology

Partnered

In August, Lilly and Incyte announced that Lilly plans to resubmit the New Drug Application (NDA) for baricitinib to the U.S. Food & Drug Administration (FDA) before the end of January 2018. The companies anticipate the FDA will classify the application as a Class II resubmission, which would start a new six-month review cycle.

In September, Lilly and Incyte announced that baricitinib met the primary endpoint in a Phase 2 study in patients with moderate-to-severe atopic dermatitis.

Novartis has stated that it anticipates submitting an NDA for capmatinib, a potent and selective c-MET inhibitor licensed from Incyte, in 2018.

Notes:

(1)         Baricitinib licensed to Lilly

(2)         Capmatinib licensed to Novartis

2017 Third-Quarter Financial Results

Revenues For the quarter ended September 30, 2017, net product revenues of Jakafi were $304 million as compared to $224 million for the same period in 2016, representing 36 percent growth. For the nine months ended September 30, 2017, net product revenues of Jakafi were $831 million as compared to $615 million for the same period in 2016, representing 35 percent growth. For the quarter ended September 30, 2017, net product revenues of Iclusig were $18 million as compared to $13 million for the same period in 2016, representing 42 percent growth.  For the nine months ended September 30, 2017, net product revenues of Iclusig were $47 million as compared to $17 million for the same period in 2016(1).

For the quarter and nine months ended September 30, 2017, product royalties from sales of Jakavi, which has been out-licensed to Novartis outside of the United States, were $41 million and $104 million, respectively, as compared to $30 million and $77 million for the same periods in 2016. For the quarter and nine months ended September 30, 2017, product royalties from sales of Olumiant outside of the United States received from Lilly were $3 million, and $4 million, respectively.

For the quarter and nine months ended September 30, 2017, contract revenues were $15 million and $105 million, respectively, as compared to $3 million and $70 million for the same periods in 2016. The contract revenues in 2017 relate to milestone payments earned.

For the quarter ended September 30, 2017, total revenues were $382 million as compared to $269 million for the same period in 2016. For the nine months ended September 30, 2017, total revenues were $1.1 billion as compared to $779 million for the same period in 2016.

(1)  In June 2016, Incyte obtained an exclusive license from ARIAD to develop and commercialize Iclusig in Europe and other select ex-U.S. countries.

Year Over Year Revenue Growth

(in thousands, unaudited)

Research and development expenses Research and development expenses for the quarter and nine months ended September 30, 2017 were $270 million and $879 million, respectively, as compared to $143 million and $420 million for the same periods in 2016. The increase in research and development expenses was primarily due to the expansion of the Company’s clinical portfolio as well as upfront and milestone expenses of $209 million related to our collaboration and license agreements with Agenus, Calithera and Merus. Included in research and development expenses for the quarter and nine months ended September 30, 2017 were non-cash expenses related to equity awards to our employees of $23 million and $68 million, respectively.

Selling, general and administrative expenses Selling, general and administrative expenses for the quarter and nine months ended September 30, 2017 were $91 million and $269 million, respectively, as compared to $76 million and $207 million for the same periods in 2016. Increased selling, general and administrative expenses were driven primarily by additional costs related to the commercialization of Jakafi and the geographic expansion in Europe. Included in selling, general and administrative expenses for the quarter and nine months ended September 30, 2017 were non-cash expenses related to equity awards to our employees of $12 million and $31 million, respectively.

Change in fair value of acquisition-related contingent consideration The change in fair value of acquisition-related contingent consideration for the quarter and nine months ended September 30, 2017 was a benefit of $16 million and $2 million, respectively, as compared to expense of $8 million and $10 million for the same periods in 2016.  The change in fair value of acquisition-related contingent consideration represents the fair market value adjustments of the Company’s contingent liability related to the acquisition of the European business of ARIAD Pharmaceuticals, Inc.

Unrealized gain (loss) on long term investments Unrealized gain on long term investments for the quarter ended September 30, 2017 was $23 million as compared to $24 million for the same period in 2016.  The unrealized loss on long term investments for the nine months ended September 30, 2017 was $2 million as compared to an unrealized gain of $20 million for the same period in 2016. The unrealized gain or loss on long term investments for the quarter and nine months ended September 30, 2017 represents the fair market value adjustments of the Company’s investments in Agenus and Merus.

Expense related to senior note conversions Expense related to senior note conversions for the nine months ended September 30, 2017 was $55 million related to the conversions of certain of our 2018 and 2020 convertible senior notes.

Net income (loss) Net income for the quarter ended September 30, 2017 was $36 million, or $0.17 per basic and diluted share, as compared to net income of $37 million, or $0.20 per basic and $0.19 per diluted share for the same period in 2016. Net loss for the nine months ended September 30, 2017 was $164 million, or $0.81 per basic and diluted share, as compared to net income of $95 million, or $0.51 per basic and $0.49 per diluted share for the same period in 2016.

Cash, cash equivalents and marketable securities position As of September 30, 2017, cash, cash equivalents and marketable securities totaled $1.3 billion as compared to $809 million as of December 31, 2016. The increase in cash, cash equivalents and marketable securities from December 31, 2016 to September 30, 2017 is primarily due to the recent public offering of 4,945,000 shares of our common stock resulting in net proceeds of $649 million.

2017 Financial Guidance

The Company has updated its full year 2017 financial guidance, as detailed below.

* Includes upfront and milestone expenses of $359 million related to the amended Agenus collaboration, and the Merus, Calithera, and MacroGenics collaborations

Conference Call and Webcast Information

Incyte will hold its 2017 third-quarter financial results conference call and webcast this morning at 10:00 a.m. ET.  To access the conference call, please dial 877-407-3042 for domestic callers or 201-389-0864 for international callers. When prompted, provide the conference identification number, 13672268.

If you are unable to participate, a replay of the conference call will be available for 30 days. The replay dial-in number for the United States is 877-660-6853 and the dial-in number for international callers is 201-612-7415. To access the replay you will need the conference identification number, 13672268.

The conference call will also be webcast live and can be accessed at www.incyte.com in the Investors section under “Events and Presentations”.

About Incyte

Incyte Corporation is a Wilmington, Delaware-based biopharmaceutical company focused on the discovery, development and commercialization of proprietary therapeutics.  For additional information on Incyte, please visit the Company’s website at www.incyte.com.

Follow @Incyte on Twitter at https://twitter.com/Incyte.

About Jakafi® (ruxolitinib)

Jakafi is a first-in-class JAK1/JAK2 inhibitor approved by the U.S. Food and Drug Administration for treatment of people with polycythemia vera (PV) who have had an inadequate response to or are intolerant of hydroxyurea. Jakafi is also indicated for treatment of people with intermediate or high-risk myelofibrosis (MF), including primary MF, post—polycythemia vera MF, and post—essential thrombocythemia MF.

Jakafi is marketed by Incyte in the United States and by Novartis as Jakavi® (ruxolitinib) outside the United States.

About Iclusig® (ponatinib) tablets

Iclusig targets not only native BCR-ABL but also its isoforms that carry mutations that confer resistance to treatment, including the T315I mutation, which has been associated with resistance to other approved TKIs.

In the EU, Iclusig is approved for the treatment of adult patients with chronic phase, accelerated phase or blast phase chronic myeloid leukemia (CML) who are resistant to dasatinib or nilotinib; who are intolerant to dasatinib or nilotinib and for whom subsequent treatment with imatinib is not clinically appropriate; or who have the T315I mutation, or the treatment of adult patients with Philadelphia-chromosome positive acute lymphoblastic leukemia (Ph+ ALL) who are resistant to dasatinib; who are intolerant to dasatinib and for whom subsequent treatment with imatinib is not clinically appropriate; or who have the T315I mutation.

Incyte has an exclusive license from ARIAD Pharmaceuticals, Inc, since acquired by Takeda Pharmaceutical Company Limited, to develop and commercialize Iclusig in the European Union and 22 other countries, including Switzerland, Norway, Turkey, Israel and Russia.

Forward-Looking Statements

Except for the historical information set forth herein, the matters set forth in this release contain predictions, estimates and other forward-looking statements, including without limitation statements regarding: the Company’s financial guidance for 2017 and the expectations underlying such guidance;  whether and when the NDA for baricitinib for RA will be resubmitted to the FDA, how the FDA will classify the resubmission and the timing of the FDA’s review, whether baricitinib will ever be approved in the U.S. for any indication and whether development of baricitinib in other indications will be successful or will continue as currently planned, including for atopic dermatitis; plans and expectations regarding our product pipeline and strategy (including without limitation plans and expectations relating to epacadostat, ruxolitinib, itacitinib, INCB50465 and INCB54828) - including timelines for advancing our drug candidates through clinical trials (including enrollment and commencement), whether certain trials will serve as the

basis for registration, timelines for regulatory submissions and timelines for releasing trial data, the number of potential clinical trials, and whether any specific program will be successful - and plans and expectations regarding development activities of our collaboration partners (including without limitation collaboration development activities relating to capmatinib and baricitinib); whether the Company’s development portfolio will lead to transformational growth; and whether Incyte will become a world-class global biopharmaceutical company.

These forward-looking statements are based on the Company’s current expectations and subject to risks and uncertainties that may cause actual results to differ materially, including unanticipated developments in and risks related to: the efficacy or safety of our products; the acceptance of our products in the marketplace; market competition; further research and development; sales, marketing and distribution requirements; clinical trials, including pivotal trials, possibly being unsuccessful or insufficient to meet applicable regulatory standards or warrant continued development; the ability to enroll sufficient numbers of subjects in clinical trials; determinations made by the FDA; other market, economic or strategic factors and technological advances; unanticipated delays; the ability of the Company to compete against parties with greater financial or other resources; the Company’s dependence on its relationships with its collaboration partners; greater than expected expenses; expenses relating to litigation or strategic activities; our ability to obtain additional capital when needed; obtaining and maintaining effective patent coverage for the Company’s products; and other risks detailed from time to time in the Company’s reports filed with the Securities and Exchange Commission, including its Form 10-Q for the quarter ended June 30, 2017. The Company disclaims any intent or obligation to update these forward-looking statements.

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INCYTE CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited, in thousands, except per share amounts)

INCYTE CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited, in thousands)

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