13G Filing: Sabby Capital and Onconova Therapeutics Inc. (ONTX)

Page 2 of 9 – SEC Filing

1.
NAME OF REPORTING PERSONSSabby Healthcare Master Fund, Ltd.2.
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a) [_]

(b) [X]

3.
SEC USE ONLY4.
CITIZENSHIP OR PLACE OF ORGANIZATIONCayman IslandsNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.
SOLE VOTING POWER06.
SHARED VOTING POWER 702,8967.
SOLE DISPOSITIVE POWER08.
SHARED DISPOSITIVE POWER 702,8969.
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 702,89610.
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS)

[_]11.
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)7.6112.
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

CO?
CUSIP No.
68232V1081.
NAME OF REPORTING PERSONSSabby Volatility Warrant Master Fund, Ltd.2.
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a) [_]

(b) [X]

3.
SEC USE ONLY4.
CITIZENSHIP OR PLACE OF ORGANIZATIONCayman IslandsNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.
SOLE VOTING POWER

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