13D Filing: GAMCO Investors and Mocon Inc (MOCO)

1

Names of reporting persons

I.R.S. identification nos. of above persons (entities only)

Check the appropriate box if a member of a group (SEE INSTRUCTIONS) (a)

(b)

3

Sec use only

4

Source of funds (SEE INSTRUCTIONS)

None

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

None   (Item 5)

: 8

:

:

:

Shared voting power

None

: 9

:

:

:

Sole dispositive power

None     (Item 5)

:10

:

:

:

Shared dispositive power

None

11

Aggregate amount beneficially owned by each reporting person

None   (Item 5)

X

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)

0.00%

14

Type of reporting person (SEE INSTRUCTIONS)

    HC, CO