13D Filing: Caxton Corp and Strongbridge Biopharma PLC (SBBP)

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Page 2 of 11 – SEC Filing

1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Caxton Corporation

22-2437619

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [_]
(b) [X]
3. SEC USE ONLY
4. SOURCE OF FUNDS
AF
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEMS 2(d) OR 2(e)
[_]
6. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
7. SOLE VOTING POWER
0
8. SHARED VOTING POWER
7,614,994
9. SOLE DISPOSITIVE POWER
0
10. SHARED DISPOSITIVE POWER
7,614,994
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON
7,614,994
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES
[_]
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
18.1%
14. TYPE OF REPORTING PERSON
CO

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