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*
CDK ASSOCIATES, L.L.C.

(Last) (First) (Middle)
C/O CAXTON CORPORATION
731 ALEXANDER ROAD, BUILDING #2

(Street)
PRINCETON NJ 08540

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Strongbridge Biopharma plc [ SBBP ]
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)
08/08/2018
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
Ordinary Shares, $0.01 par value 08/08/2018 P 360,995 A $4.9267(1) 6,294,829 D(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*
CDK ASSOCIATES, L.L.C.

(Last) (First) (Middle)
C/O CAXTON CORPORATION
731 ALEXANDER ROAD, BUILDING #2

(Street)
PRINCETON NJ 08540

(City) (State) (Zip)
1. Name and Address of Reporting Person*
CAXTON CORP

(Last) (First) (Middle)
731 ALEXANDER ROAD
BUILDING #2

(Street)
PRINCETON NJ 08540

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Kovner Bruce

(Last) (First) (Middle)
C/O CAXTON CORPORATION
731 ALEXANDER ROAD, BUILDING #2

(Street)
PRINCETON NJ 08540

(City) (State) (Zip)
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.878 to $5.00 per share, inclusive. The Reporting Persons undertake to provide to the staff of the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price.
2. These shares represent (a) 5,968,147 Ordinary Shares that are owned directly by CDK Associates, LLC, which is a reporting person, and may be deemed to be indirectly beneficially owned by (i) Caxton Corporation, the manager of CDK Associates, LLC, and (ii) Bruce Kovner, the chairman and sole shareholder of Caxton Corporation; and (b) 326,682 Ordinary Shares beneficially owned by employees of an affiliate of Caxton Corporation and entities affiliated with such employees and may be deemed to be indirectly beneficially owned by (i) Caxton Corporation and (ii) Bruce Kovner, the chairman and sole shareholder of Caxton Corporation. Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
CDK Associates, L.L.C., By: Caxton Corporation, its Manager By: /s/ Heath Weisberg, General Counsel 08/09/2018
Caxton Corporation, By: /s/ Heath Weisberg, General Counsel 08/09/2018
By: /s/ Heath Weisberg, Attorney-in-Fact 08/09/2018
** 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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