13G Filing: Maverick Capital and Castlight Health Inc. (CSLT)

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Item 3.
If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)  Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
(b)  Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c)  Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
(d)  Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e)  An investment advisor in accordance with §240.13d-1(b)(1)(ii)(E).
(f)  An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).
(g)  A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).
(h)  A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).
(i)  A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3).
(j)  A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);
(k)  Group, in accordance with § 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: _______________
Item 4
Ownership
Ownership as of April 3, 2017 is incorporated by reference to items (5) – (9) and (11) of the cover page of the Reporting Person.
Maverick Capital, Ltd. is an investment adviser registered under Section 203 of the Investment Advisers Act of 1940 and, as such, may be deemed to have beneficial ownership of the Shares which are the subject of this filing through the investment discretion it exercises over its clients’ accounts.  Maverick Capital Management, LLC is the General Partner of Maverick Capital, Ltd.  Mr. Ainslie is the manager of Maverick Capital Management, LLC.  Mr. Warford serves as the Chairman of the Stock Committee of Maverick Capital, Ltd.
Item 5
Ownership of Five Percent or Less of a Class
Not applicable.

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