Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^{F4,F5,F9,F10,F13,F14}	May 2, 2018	M	20,000	$9.92	A	4,407,408	I	See Footnotes
Common Stock^{F5,F6,F9,F11,F13,F14}	May 2, 2018	M	20,000	$9.92	A	29,267,937	I	See Footnotes
Common Stock^{F5,F7,F9,F12,F13,F14}	May 2, 2018	M	20,000	$9.92	A	810,006	I	See Footnotes
Common Stock^F1	holding	—	—		—	58,632	D
Common Stock^F2	holding	—	—		—	61,049	D
Common Stock^F3	holding	—	—		—	33,410	I	See Footnotes

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Non-Qualified Stock Options (right to buy)^{F8,F14,F15,F16}	$60.85	May 1, 2018	A	15,000	A	May 1, 2019	Apr 30, 2028	Common Stock	15,000	15,000	I
Non-Qualified Stock Options (right to buy)^F8,F4,F9,F14	$9.92	May 2, 2018	M	20,000	D	May 22, 2009	May 21, 2018	Common Stock	20,000	0	I
Non-Qualified Stock Options (right to buy)^F8,F6,F9,F14	$9.92	May 2, 2018	M	20,000	D	May 22, 2009	May 21, 2018	Common Stock	20,000	0	I
Non-Qualified Stock Options (right to buy)^F8,F7,F9,F14	$9.92	May 2, 2018	M	20,000	D	May 22, 2009	May 21, 2018	Common Stock	20,000	0	I

Explanation of responses

F1Reflects shares of common stock of Incyte Corporation (the "Issuer") held directly by Julian C. Baker.
F10After giving effect to the transactions reported herein, and as a result of their ownership interest in Baker Biotech Capital (GP), LLC, Julian C. Baker and Felix J. Baker may be deemed to have an indirect pecuniary interest in the Issuer's shares of Common Stock reported in column 5 of Table I directly held by 667, a limited partnership of which the sole general partner is Baker Biotech Capital, L.P., a limited partnership of which the sole general partner is Baker Biotech Capital (GP), LLC, due to Baker Biotech Capital, L.P.'s right to receive an allocation of a portion of the profits from 667.
F11After giving effect to the transactions reported herein, and as a result of their ownership interest in Baker Brothers Life Sciences Capital (GP), LLC, Julian C. Baker and Felix J. Baker may be deemed to have an indirect pecuniary interest in the Issuer's shares of Common Stock reported in column 5 of Table I directly held by Life Sciences, a limited partnership of which the sole general partner is Baker Brothers Life Sciences Capital, L.P., a limited partnership of which the sole general partner is Baker Brothers Life Sciences Capital (GP), LLC, due to Baker Brothers Life Sciences Capital, L.P.'s right to receive an allocation of a portion of the profits from Life Sciences.
F12After giving effect to the transactions reported herein, and as a result of their ownership interest in 14159 Capital (GP), LLC, Julian C. Baker and Felix J. Baker may be deemed to have an indirect pecuniary interest in the Issuer's shares of Common Stock reported in column 5 of Table I directly held by 14159, a limited partnership of which the sole general partner is 14159 Capital, L.P., a limited partnership of which the sole general partner is 14159 Capital (GP), LLC, due to 14159, L.P.'s right to receive an allocation of a portion of the profits from 14159.
F13Includes beneficial ownership of 2,300 shares issued pursuant to the Stock Incentive Plan in lieu of director retainer fees and 115,000 shares, 95,000 of which were received previously, from exercise of 115,000 stock options of the Issuer that were issued to Julian C. Baker in his capacity as a director of the Issuer, of which the fund may be deemed to own a portion.
F14The Adviser serves as the Investment Adviser to the Funds. In connection with the services provided by the Adviser, the Adviser receives an asset-based management fee that does not confer any pecuniary interest in the securities held by the Funds. Baker Bros. Advisors (GP) LLC (the "Adviser GP") is the Adviser's sole general partner. Julian C. Baker and Felix J. Baker are principals of the Adviser GP. The Adviser has complete and unlimited discretion and authority with respect to the investment and voting power of the securities held by the Funds. The general partners of the Funds relinquished to the Adviser all discretion and authority with respect to the investment and voting power of the securities held by the Funds. Julian C. Baker, Felix J. Baker, the Adviser GP and the Adviser disclaim beneficial ownership of the securities held directly by the Funds except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that any of Julian C. Baker, Felix J. Baker, the Adviser GP or the Adviser is a beneficial owner of such securities for purposes of Section 16 or any other purpose.
F1515,000 non-qualified stock options (the "Stock Options") convertible solely into common shares were granted to Julian C. Baker. The Stock Options have a strike price of $60.85 and vest on the first anniversary of the grant date or, if earlier, the date of the next regular annual meeting of the Issuer stockholders or upon a change in control of the Issuer (as defined in the Issuer's Amended and Restated 2010 Stock Incentive Plan). Julian C. Baker serves on the Board as a representative of the Funds. Pursuant to the policies of the Adviser, Julian C. Baker does not have any right to any of the Issuer's securities issued as part of his service on the Board and the Funds are entitled to receive all the pecuniary interest in the securities issued.
F16The Funds each own an indirect proportionate pecuniary interest in the Stock Options. Solely as a result of Felix J. Baker's and Julian C. Baker's ownership interest in the general partners of the general partners of the Funds, Felix J. Baker and Julian C. Baker may be deemed to have an indirect pecuniary interest in the Stock Options (i.e. no direct pecuniary interest).
F2Reflects shares of common stock of the Issuer held directly by Felix J. Baker.
F3Julian C. Baker and Felix J. Baker may be deemed to have an indirect pecuniary interest in 33,410 shares of Common Stock of the Issuer directly held by FBB Associates. Julian C. Baker and Felix J. Baker are the sole partners of FBB Associates. Julian C. Baker and Felix J. Baker disclaim beneficial ownership of the securities held directly by FBB Associates except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that Julian C. Baker or Felix J. Baker is a beneficial owner of such securities for purposes of Section 16 or any other purpose.
F4As a result of their ownership interest in Baker Biotech Capital (GP), LLC, Felix J. Baker and Julian C. Baker may be deemed to have an indirect pecuniary interest in 20,000 shares of Common Stock of the Issuer received upon the exercise of stock options of the Issuer held by 667, L.P. ("667"), a limited partnership of which the sole general partner is Baker Biotech Capital, L.P., a limited partnership of which the sole general partner is Baker Biotech Capital (GP), LLC, due to Baker Biotech Capital, L.P.'s right to receive an allocation of a portion of the profits from 667. The policy of the Funds (defined below) and Baker Bros. Advisors LP (the "Adviser"), does not permit full-time employees or principals of the Adviser to receive compensation for serving as Directors of the Issuer.
F5The shares of common stock were received upon exercise of 20,000 stock options that were issued to Julian C. Baker in his capacity as a director of the Issuer. Julian C. Baker, pursuant to the policies of the Adviser, does not have any right to the pecuniary interest in the stock options issued for his service on the Board of Directors of the Issuer (the "Board") or the shares of common stock received upon exercise of such stock options. Each of the Funds owns an indirect proportionate pecuniary interest in the shares of common stock received upon exercise of the stock options issued in connection with Julian C. Baker's service on the Board less the exercise cost of those options. Solely as a result of their ownership interest in the general partners of the general partners of the Funds, Felix J. Baker and Julian C. Baker may be deemed to have an indirect pecuniary interest in the shares issued upon exercise of the stock options (i.e. no direct pecuniary interest).
F6As a result of their ownership interest in Baker Brothers Life Sciences Capital (GP), LLC, Felix J. Baker and Julian C. Baker may be deemed to have an indirect pecuniary interest in 20,000 shares of Common Stock of the Issuer received upon the exercise of stock options of the Issuer held by Baker Brothers Life Sciences, L.P. ("Life Sciences"), a limited partnership of which the sole general partner is Baker Brothers Life Sciences Capital, L.P., a limited partnership of which the sole general partner is Baker Brothers Life Sciences Capital (GP), LLC, due to Baker Brothers Life Sciences Capital, L.P.'s right to receive an allocation of a portion of the profits from Life Sciences. The policy of the Funds (defined below) and the Adviser, does not permit full-time employees or principals of the Adviser to receive compensation for serving as Directors of the Issuer.
F7As a result of their ownership interest in 14159 Capital (GP), LLC, Felix J. Baker and Julian C. Baker may be deemed to have an indirect pecuniary interest in 20,000 shares of Common Stock of the Issuer received upon the exercise of stock options of the Issuer held by 14159, L.P. ("14159" and together with 667 and Life Sciences, the "Funds"), a limited partnership of which the sole general partner is 14159 Capital, L.P., a limited partnership of which the sole general partner is 14159 Capital (GP), LLC, due to 14159 Capital, L.P.'s right to receive an allocation of a portion of the profits from 14159. The policy of the Funds and the Adviser, does not permit full-time employees or principals of the Adviser to receive compensation for serving as Directors of the Issuer.
F8These non-qualified stock options are not priced.
F9The disclosure of the exercise of directors options for shares of common stock reported on this form is a single exercise of 20,000 shares. The 20,000 shares is reported for each of the Funds as each has an indirect pecuniary interest.

Remarks

Julian C. Baker is a director of Incyte Corporation (the "Issuer"). By virtue of his representation on the Board of Directors of the Issuer, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the reporting persons are deemed directors by deputization of the Issuer.