Greek Billionaire George Economou Buys More Shares of Danaos Corp (DAC)

1

NAMES OF REPORTING PERSONS

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

Sphinx Investment Corp.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

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(b)

ý

3

SEC USE ONLY

4

SOURCE OF FUNDS (SEE INSTRUCTIONS)

WC

5

CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)

☐

6

CITIZENSHIP OR PLACE OF ORGANIZATION

Republic of the Marshall Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

7

SOLE VOTING POWER

16,221,621*

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

16,221,621*

10

SHARED DISPOSITIVE POWER

0

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,221,621*

12

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

14.78%

14

TYPE OF REPORTING PERSON

CO