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*
BRATTON DOUGLAS K

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Juno Therapeutics, Inc. [ JUNO ]
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)
03/01/2016
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
Common Stock 03/01/2016 S 8,600,000(1) D $39 17,166,130 I By CL Alaska, L.P.(2)(3)
Common Stock 182,669 I By JT Line Partners LP(4)
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*
BRATTON DOUGLAS K

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Crestline Investors, Inc.

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Crestline SI (GP), L.P.

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Crestline Management, LP

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
1. Name and Address of Reporting Person*
CL Alaska, L.P.

(Last) (First) (Middle)
201 MAIN STREET, SUITE 1900

(Street)
FORT WORTH TX 76102

(City) (State) (Zip)
Explanation of Responses:
1. The purchase reported in Column 4 occurred in a block transaction at a price of $39.00 per share.
2. These 17,166,130 shares of the Issuer are held directly by CL Alaska, L.P. ("CLA"). The general partner of CLA is Crestline SI (GP), L.P. ("Crestline SI") and the investment manager of CLA is Crestline Management, L.P. ("Crestline Management"). Crestline Investors, Inc. ("Crestline") is the general partner of both Crestline SI and Crestline Management. Douglas K. Bratton is the sole director of Crestline. CLA is ultimately controlled by Mr. Bratton and Mr. Bratton has voting and investment power over all of these shares of the Issuer as well as a partial pecuniary interest in the shares held by CLA. Mr. Bratton does not intend to sell additional shares of the Issuer from CLA at this time, however, please see the related disclosures in Item 4 of the Schedule 13D/A filed on June 25, 2015.
3. (Continued from footnote 2) CLA may be deemed to directly beneficially own all of these shares of the Issuer. Crestline SI, Crestline Management, Crestline and Mr. Bratton may each be deemed to indirectly beneficially own all of these shares of the Issuer. Each such entity and Mr. Bratton disclaims beneficial ownership of these shares, except to the extent of its or his respective pecuniary interest therein.
4. The shares of the Issuer reported in Column 5 are held directly by JT Line Partners LP ("JT"). The general partner of JT is Bratton Capital Management L.P. ("Bratton Capital Management"). The general partner of Bratton Capital Management is Bratton Capital, Inc. ("Bratton Capital"). Douglas K. Bratton is the sole director of Bratton Capital. JT is ultimately controlled by Mr. Bratton and Mr. Bratton has voting and investment power over all of the shares of the Issuer held by JT, as well as a partial pecuniary interest in such shares. JT directly beneficially owns these shares of the Issuer. Bratton Capital Management, Bratton Capital and Mr. Bratton may each be deemed to indirectly beneficially own the shares of the Issuer held by JT. Each such entity and Mr. Bratton disclaims beneficial ownership of these shares, except to the extent of its or his respective pecuniary interest therein.
Remarks:
/s/ Douglas K. Bratton 03/03/2016
/s/ John S. Cochran, Vice President of Crestline Investors, Inc. 03/03/2016
/s/ John S. Cochran, Vice President of Crestline Investors, Inc., general partner of Crestline SI (GP), L.P. 03/03/2016
/s/ John S. Cochran, Vice President of Crestline Investors, Inc., general partner of Crestline Management, L.P. 03/03/2016
/s/ John S. Cochran, Vice President of Crestline Investors, Inc., general partner of Crestline SI (GP), L.P., general partner of CL Alaska, L.P. 03/03/2016
** 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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