13D Filing: Black Horse Capital LP and Humanigen Inc (HGEN)

1.

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

Black Horse Capital LP

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)    [ ]

(b)    [ ]

3.

SEC USE ONLY

4.

SOURCE OF FUNDS

WC

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 WITH:

7.

SOLE VOTING POWER

5,996,710

8.

SHARED VOTING POWER

0

9.

SOLE DISPOSITIVE POWER

5,996,710

10.

SHARED DISPOSITIVE POWER

0

11.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

5,996,710

12.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
EXCLUDES CERTAIN SHARES    [ ]

13.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

5.6%

14.

TYPE OF REPORTING PERSON

PN