Graham Capital Company is filing this Statement pursuant to Rule 13d-1(c) as a result of an acquisition on December 31, 2010. Graham Alternative Investment Partners I, Steven C. Graham, and William H. Kerlin Jr. are filing this Statement pursuant to Rule 13d-1(c) as a result of an acquisition on March 26, 2010. GPC Investments, LLC and Donald C. Graham are filings this Statement pursuant to Rule 13d-1(d).

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

Graham Alternative Investment Partners I

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    Pennsylvania

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    3,357,358

Sole dispositive power –

    0

Shared dispositive power –

    3,357,358

  9.

Aggregate amount beneficially owned by each reporting person –

    3,357,358

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    5.1%

12.

Type of reporting person –

    PN

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

Steven C. Graham

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    United States of America

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    3,357,358

Sole dispositive power –

    0

Shared dispositive power –

    0

  9.

Aggregate amount beneficially owned by each reporting person –

    3,357,358

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    5.1%

12.

Type of reporting person –

    IN

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

William H. Kerlin Jr.

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    United States of America

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    3,357,358

Sole dispositive power –

    0

Shared dispositive power –

    0

  9.

Aggregate amount beneficially owned by each reporting person –

    3,357,358

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    5.1%

12.

Type of reporting person –

    IN

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

GPC Investments, LLC

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    Pennsylvania

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    26,681

Sole dispositive power –

    0

Shared dispositive power –

    3,384,039

  9.

Aggregate amount beneficially owned by each reporting person –

    3,384,039

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    5.1%

12.

Type of reporting person –

    CO

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

Donald C. Graham

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    United States of America

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    3,449,515

Sole dispositive power –

    0

Shared dispositive power –

    6,806,873

  9.

Aggregate amount beneficially owned by each reporting person –

    6,806,873

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    9.8%

12.

Type of reporting person –

    IN

CUSIP No. 384701108

Names of reporting persons.

I.R.S. Identification Nos. of above persons (entities only).

Graham Capital Company

Check the appropriate box if a member of a group (see instructions)

(a)  ¨        (b)  ¨

SEC use only

Citizenship or place of organization:

    Pennsylvania

Number of

shares

beneficially

owned by

each

reporting

person

with

Sole voting power –

    0

Shared voting power –

    3,332,022

Sole dispositive power –

    0

Shared dispositive power –

    3,332,022

  9.

Aggregate amount beneficially owned by each reporting person –

    3,332,022

10.

Check if the aggregate amount in Row (9) excludes certain shares (see instructions) –

    Not Applicable

11.

Percent of class represented by amount in Row (9):

    5.1%

12.

Type of reporting person –

    CO

(a)

(b)

(a)

(b)

(c)

(d)

(e)

Graham Engineering Corporation (“GEC”) is the direct beneficial owner of 90,812 Shares.

GAIP is the direct beneficial owner of 3,357,358 Limited Partnership Units (“LP Units”) of Graham Packaging Holdings Company, which are exchangeable into shares of Common Stock at any time on a one-for-one basis, subject to customary conversion rate adjustments for splits, stock dividends and reclassifications, pursuant to the terms of an exchange agreement among the Company and certain holders of LP Units.

GCC is the direct beneficial owner of 452,940 Shares and 2,879,082 LP Units.

GPC Investments is the direct beneficial owner of 26,681 LP Units.

Donald Graham is the sole member of GPC Investments, which is the sole general partner of GAIP. Donald Graham is the sole member of GCC and the majority shareholder of GEC. In these capacities, Donald Graham has dispositive power over all Shares and LP Units held by GPC Investments, GCC, GEC, and GAIP. He also has voting power over all Shares and LP Units held by GPC Investments, GCC, and GEC. Pursuant to the partnership agreement of GAIP (the “LP Agreement of GAIP”), voting rights with respect to all shares of stock and other securities owned by GAIP are held by the Class B Partners of GAIP, as opposed to the general partner of GAIP. As a result, Donald Graham does not have voting power with respect to Shares and LP Units held by GAIP.

Based on the foregoing, Donald Graham is the beneficial owner of 6,806,873 Shares (including 6,263,121 LP Units convertible into Shares), of which he has shared voting power over 3,449,515 Shares (including 2,905,763 LP Units convertible into Shares) and shared dispositive power over 6,806,873 Shares (including 6,263,121 LP Units convertible into Shares).

GPC Investments, as the sole general partner of GAIP, has dispositive power over all Shares and LP Units held by GAIP. Pursuant to the LP Agreement of GAIP, voting rights with respect to all shares of stock and other securities owned by GAIP are held by the Class B Partners of GAIP, as opposed to the general partner of GAIP. As a result, GPC Investments does not have voting power with respect to Shares and LP Units held by GAIP.

Based on the foregoing, and as the direct beneficial owner of 26,681 LP Units, GPC Investments is the beneficial owner of 3,384,039 Shares (all of which are LP Units convertible into Shares), of which it has shared voting power over 26,681 Shares (all of which are LP Units convertible into Shares) and shared dispositive power over 3,384,039 Shares (all of which are LP Units convertible into Shares).

As the direct beneficial owner of 3,357,358 LP Units, GAIP has shared voting and dispositive power over 3,357,358 Shares (all of which are LP Units convertible in to Shares).

Pursuant to the LP Agreement of GAIP, all shares of stock and other securities owned by GAIP may only be voted with the consent of the majority of the five Class B Partners of GAIP, which are trusts, all of the beneficiaries of which are members of Donald Graham’s immediate family. Accordingly, none of the Class B Partners of GAIP, individually, has voting power over the shares of stock and other securities owned by GAIP. Steven Graham and William Kerlin are the co-trustees of each of the trusts comprising the Class B Partners of GAIP and, as such, in their fiduciary capacities as trustees only, share voting power with respect to all shares of stock and other securities owned by GAIP, which include all of the LP Units held by GAIP.

Based on the foregoing, Steven Graham and William Kerlin are the beneficial owners of 3,357,358 Shares (all of which are LP Units convertible into Shares), of which they share voting powers over 3,357,358 Shares (all of which are LP Units convertible into Shares).

As of December 31, 2010, the Reporting Persons’ beneficial ownership, based on 63,067,261 shares of Common Stock outstanding on December 21, 2010, as disclosed by the Company in its Amendment No. 1 to the Registration Statement on Form S-1 filed with the SEC on December 21, 2010, were as follows: (i) Donald Graham beneficially owned 9.8% of the outstanding Common Stock (including LP Units convertible into Shares); (ii) GPC Investments beneficially owned 5.1% of the outstanding Common Stock (including LP Units convertible into Shares); (iii) GAIP beneficially owned 5.1% of the outstanding Common Stock (including LP Units convertible into Shares); (iv) Steven Graham beneficially owned 5.1% of the outstanding Common Stock (including LP Units convertible into Shares); (v) William Kerlin beneficially owned 5.1% of the outstanding Common Stock (including LP Units convertible into Shares); and (vi) GCC beneficially owned 5.1% of the outstanding Common Stock (including LP Units convertible into Shares).

Certification of Graham Capital Company, GAIP, Steven Graham, and William Kerlin:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.