SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
MAVERICK CAPITAL LTD

(Last) (First) (Middle)
300 CRESCENT COURT
18TH FLOOR

(Street)
DALLAS TX 75201

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
CASTLIGHT HEALTH, INC. [ CSLT ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/27/2014
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class B Common Stock 08/27/2014 P 140,045 A $11.03 (1) 590,045 I See footnote (2)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
1. Name and Address of Reporting Person*
MAVERICK CAPITAL LTD

(Last) (First) (Middle)
300 CRESCENT COURT
18TH FLOOR

(Street)
DALLAS TX 75201

(City) (State) (Zip)
1. Name and Address of Reporting Person*
MAVERICK CAPITAL MANAGEMENT LLC

(Last) (First) (Middle)
300 CRESCENT COURT
18TH FLOOR

(Street)
DALLAS TX 75201

(City) (State) (Zip)
1. Name and Address of Reporting Person*
AINSLIE LEE S III

(Last) (First) (Middle)
767 FIFTH AVENUE
11TH FLOOR

(Street)
NEW YORK NY 10153

(City) (State) (Zip)
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $10.88 to $11.36 inclusive. The reporting person undertakes to provide to Castlight Health, Inc. ("Castlight"), any security holder of Castlight, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.
2. Maverick Capital, Ltd. ("Maverick Capital") is a registered investment adviser under the Investment Advisers Act of 1940, as amended, and acts as the investment manager for each of the portfolio funds that directly hold the reported securities. Maverick Capital Management, LLC ("Maverick Management") is the general partner of Maverick Capital. Lee S. Ainslie III is the manager of Maverick Management who is granted sole investment decision pursuant to Maverick Management's limited liability company regulations. Each reporting owner disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.
/s/ John T. McCafferty, Attorney-in-Fact 08/29/2014
/s/ John T. McCafferty, Attorney-in-Fact 08/29/2014
/s/ John T. McCafferty, Attorney-in-Fact 08/29/2014
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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