SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D/A

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED

PURSUANT TO § 240.13D-1(A) AND AMENDMENTS

THERETO FILED PURSUANT TO § 240.13D-2(A)

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 15)

Capital Product Partners L.P.

(Name of Issuer)

Common units, representing limited partner interests

(Title of Class of Securities)

Y11082206

(CUSIP Number)

Gerasimos (Jerry) Kalogiratos

Capital Maritime & Trading Corp.

3 Iassonos Street

Piraeus, 18537, Greece

Tel: +30 210 458-4950

with a copy to:

Richard Pollack

Sullivan & Cromwell LLP

1 New Fetter Lane

London, EC4A 1AN

Tel: +44-20-7959-8900

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

September 22, 2020

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.  ☐

This Amendment No. 15 amends and supplements the disclosures in Items 2 through 5 of the Schedule 13D (the “Schedule 13D”) filed with the Securities and Exchange Commission (the “SEC”) on April 4, 2008, as amended by amendments thereto filed on September 10, 2020, May 1, 2019, December 14, 2018, December 3, 2018, April 23, 2015, September 29, 2014, March 29, 2013, June 13, 2012, May 31, 2012, October 26, 2011, October 5, 2011, May 9, 2011, February 26, 2009, and April 30, 2008, relating to the common units representing limited partner interests (the “Common Units”) of Capital Product Partners L.P., a limited partnership organized under the laws of the Republic of the Marshall Islands (the “Issuer”). Unless specifically amended hereby, the disclosures set forth in the Schedule 13D remain unchanged.

Item 2. Identity and Background.

This Schedule 13D is jointly filed by Capital Maritime & Trading Corp. (“Capital Maritime”), Crude Carriers Investments Corp. (“CCIC”) and Evangelos M. Marinakis (collectively, the “Reporting Persons”).

The principal business office and address of each Reporting Person is c/o Capital Maritime, 3 Iassonos Street Piraeus, 18537, Greece.

Mr. Marinakis is the chairman and a director of Capital Maritime.

The principal business of Capital Maritime consists of shipping and transportation services.

The principal business of CCIC is owning investments in companies.

The name, position, address and citizenship of the directors and executive officers of Capital Maritime and CCIC are set forth on Schedule A attached hereto, and are incorporated herein by reference.

During the past five years, none of the Reporting Persons, and to the best of their knowledge, none of the Reporting Persons’ directors or executive officers (as applicable) (1) has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (2) has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

Item 3. Source and Amount of Funds or Other Consideration.

Item 3 is hereby amended and supplemented by adding the following:

On September 10, 2020 Capital Maritime acquired 200 Common Units, in open market transactions for an average price of $6.345 per Common Unit.

On September 11, 2020, Capital Maritime acquired 28,030 Common Units, in open market transactions, for an average price of $6.576 per Common Unit.

On September 14, 2020, Capital Maritime acquired 9,769 Common Units, in open market transactions, for an average price of $6.791 per Common Unit.

The source of funds used for these transactions was working capital of Capital Maritime.

The information set forth in Item 4 of this Schedule 13D is hereby incorporated herein by reference.

Item 4. Purpose of Transaction.

Item 4 is hereby amended and supplemented by the following:

Capital GP L.L.C., the general partner of the Issuer (the “General Partner”), is a limited liability company organized under the laws of the Republic of the Marshall Islands. The General Partner was initially formed and controlled by Capital Maritime. On April 26, 2019, Capital Maritime transferred all membership interests in the General Partner to a vehicle wholly owned by Miltiadis E. Marinakis, as part of a reallocation of various shipping interests and businesses among members of the Marinakis family. Mr. Miltiadis E. Marinakis, born in 1999, is the son of Evangelos M. Marinakis. Although not engaged in day-to-day management, Mr. Miltiadis E. Marinakis holds and oversees certain shipping interests on behalf of the Marinakis family.

Pursuant to the Limited Liability Company Agreement of the General Partner dated March 22, 2007, the management of the General Partner is vested exclusively in its members from time to time. Accordingly, Mr. Miltiadis E. Marinakis, acting on behalf of the Marinakis family as the sole member of the General Partner, has the right to appoint and elect all the officers of the General Partner.

Pursuant to the terms of the Second Amended and Restated Agreement of Limited Partnership of the Issuer, dated February 22, 2010 (as amended from time to time, the “Partnership Agreement”), the General Partner controls the appointment of three of the eight members of the Issuer’s board of directors. Accordingly, through the right to manage the General Partner, Mr. Miltiadis E. Marinakis, acting on behalf of the Marinakis family, has the ability to influence the management, policies and control of the Issuer.

The General Partner may not be removed from its position as General Partner of the Issuer unless two thirds of the outstanding Common Units, including units held by the General Partner and its affiliates, as well as the majority of the board of directors of the Issuer vote to approve such removal. As of September 22, 2020, the Reporting Persons may be deemed to beneficially own in aggregate 18.1% of the Common Units issued and outstanding. Accordingly, the Reporting Persons have the ability to significantly influence the outcome of any unitholder votes on the removal of the General Partner.

Furthermore, the General Partner is able to prevent the Issuer and its subsidiaries from taking certain significant actions, including, among other things:

References to, and descriptions of, the Partnership Agreement set forth in this Item 4 are qualified in their entirety by reference to the Partnership Agreement and the amendments thereto contained as exhibits to the Issuer’s Current Reports on Form 6-K filed or furnished with the SEC on February 24, 2010, September 30, 2011, May 23, 2012, March 21, 2013, and August 26, 2014.

Item 5. Interest in Securities of the Issuer.

Item 5 is hereby deleted and replaced in its entirety by the following:

(a) Capital Maritime beneficially owns 2,901,804 Common Units, representing 15.6% of the outstanding Common Units.

CCIC beneficially owns 469,172 Common Units, representing 2.5% of the outstanding Common Units.

The Marinakis family, including Evangelos M. Marinakis, may be deemed to beneficially own, in aggregate, 3,370,976 Common Units through its beneficial ownership of CCIC and Capital Maritime, representing, in aggregate, 18.1% of the outstanding Common Units.

Furthermore, the General Partner owns 348,570 general partner units, representing a 1.8% partnership interest in the Issuer (calculated based on an aggregate of 18,971,670 units of the Issuer). Disclosure contained in Item 4 is incorporated herein by reference.

(b)

Neither the filing of the Schedule 13D nor any of its contents shall be deemed to constitute an admission that any of the Reporting Persons (other than Capital Maritime and CCIC) or the persons set forth on Schedule A is the beneficial owner of the Common Units referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed.

(c) Except as described herein, none of the Reporting Persons has engaged in any transactions in the Common Units during the past sixty days.

(d) Except as described in Item 6 of the Schedule 13D, no other person is known by any Reporting Person to have the right to receive or the power to direct the receipt of distributions from, or the proceeds from the sale of, Common Units beneficially owned by such Reporting Person.

(e) Not applicable.

SIGNATURES

After reasonable inquiry and to the best of each of the undersigned’s knowledge and belief, each of the undersigned certify that the information set forth in this statement is true, complete and correct.

Dated: September 22, 2020

SCHEDULE A

Directors and Executive Officers of Capital Maritime:

Directors and Executive Officers of CCIC: