UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

OF THE SECURITIES EXCHANGE ACT OF 1934

DATED: May 23, 2022

Commission File No. 001-33811

NAVIOS MARITIME PARTNERS L.P.

7 Avenue de Grande Bretagne, Office 11B2

Monte Carlo, MC 98000 Monaco

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes  ☐            No  ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes  ☐            No  ☒

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes  ☐            No  ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): N/A

NAVIOS MARITIME PARTNERS L.P.

FORM 6-K

TABLE OF CONTENTS

This Report on Form 6-K is hereby incorporated by reference into the Navios Maritime Partners L.P. Registration Statement on Form F-3, File No. 333-237934.

Operating and Financial Review and Prospects

The following is a discussion of the financial condition and results of operations for the three month periods ended March 31, 2022 and 2021 of Navios Maritime Partners L.P. (referred to herein as “we”, “us”, “Company” or “Navios Partners”). All of the financial statements have been stated in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). You should read this section together with the consolidated financial statements and the accompanying notes included in Navios Partners’ 2021 Annual Report filed on Form 20-F with the U.S. Securities and Exchange Commission (the “SEC”) on April 12, 2022.

This Report contains and will contain forward-looking statements (as defined in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended) concerning future events, including Navios Partners’ 2022 cash flow generation, future contracted revenues, future distributions and its ability to make distributions going forward, Navios Partners’ ability to realize the projected advantages of the merger with Navios Maritime Acquisition Corporation (“Navios Acquisition”), opportunities to reinvest cash accretively in a fleet renewal program or otherwise, potential capital gains, its ability to take advantage of dislocation in the market and Navios Partners’ growth strategy and measures to implement such strategy; including expected vessel acquisitions and entering into further time charters and Navios Partners’ ability to refinance its debt on attractive terms, or at all. Words such as “may,” “expects,” “intends,” “plans,” “believes,” “anticipates,” “hopes,” “estimates,” and variations of such words and similar expressions are intended to identify forward-looking statements. Such statements include comments regarding expected revenue and time charters. These forward-looking statements are based on the information available to, and the expectations and assumptions deemed reasonable by Navios Partners at the time these statements were made. Although Navios Partners believes that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve risks and are based upon a number of assumptions and estimates that are inherently subject to significant uncertainties and contingencies, many of which are beyond the control of Navios Partners. Actual results may differ materially from those expressed or implied by such forward-looking statements. Factors that could cause actual results to differ materially include, but are not limited to, risks relating to: global and regional economic and political conditions including the impact of the COVID-19 pandemic and efforts throughout the world to contain its spread, global economic activity, demand for seaborne transportation of the products we ship, the ability and willingness of charterers to fulfill their obligations to us and prevailing charter rates, the economic condition of the markets in which we operate, shipyards performing scrubber installations, construction of newbuilding vessels, drydocking and repairs, changing vessel crews and availability of financing, potential disruption of shipping routes due to accidents, wars, sanctions, diseases, pandemics, political events, piracy or acts by terrorists, uncertainty relating to global trade, including prices of seaborne commodities and continuing issues related to seaborne volume, the impact of the COVID-19 pandemic and the ongoing efforts throughout the world to contain it, the creditworthiness of our charterers and the ability of our contract counterparties to fulfill their obligations to us, our ability to maximize the use of our vessels, expected demand in the dry and liquid cargo shipping sectors in general and the demand for our drybuk, containerships and tanker vessels in particular, dry cargo and tanker industry trends, fluctuations in charter rates for dry bulk vessels, containerships and tanker vessels, vessel values and factors affecting vessel supply and demand, the aging of our vessels and resultant increases in operation and dry docking costs, the loss of any customer or charter or vessel, our ability to repay outstanding indebtedness, to obtain additional financing and to obtain replacement charters for our vessels, in each case, at commercially acceptable rates or at all, increases in costs and expenses, including but not limited to: crew wages, insurance, provisions, port expenses, lube oil, bunkers, repairs, maintenance and general and administrative expenses, the expected cost of, and our ability to comply with, governmental regulations and maritime self-regulatory organization standards, as well as standard regulations imposed by our charterers applicable to our business, potential liability from litigation and our vessel operations, including discharge of pollutants, general domestic and international political conditions, competitive factors in the market in which Navios Partners operates; risks associated with operations outside the United States; and other factors listed from time to time in Navios Partners’ filings with the U.S. Securities and Exchange Commission, including its reports on Form 20-F and reports on Form 6-K. Navios Partners expressly disclaims any obligations or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in Navios Partners’ expectations with respect thereto or any change in events, conditions or circumstances on which any statement is based. Navios Partners makes no prediction or statement about the performance of its common units.

2

Recent Developments

Acquisition of Vessels

In April 2022, Navios Partners agreed to purchase four 115,000 dwt Aframax/LR2 newbuilding vessels for a purchase price of $58.5 million each (plus $4.2 million in additional features). The vessels have been designed with the latest technology to optimize efficiency. They are expected to be delivered into Navios Partners’ fleet during 2024 and the first quarter of 2025. The closing of the transaction is subject to completion of customary documentation.

Credit Facilities

On May 9, 2022, Navios Partners entered into a new credit facility with a commercial bank for a total amount of up to $25.2 million in order to refinance existing indebtedness and for working capital purposes. The credit facility matures in the second quarter of 2027 and bears interest at Term Secured Overnight Financing Rate (SOFR) plus credit adjustment spread plus 250 bps per annum. On May 11, 2022, the entire amount was drawn under this credit facility.

Overview

We are an international owner and operator of dry cargo and tanker vessels, formed on August 7, 2007 under the laws of the Republic of the Marshall Islands. Olympos Maritime Ltd. is our general partner (the “General Partner”).

As of May 18, 2022, there were 30,197,087 outstanding common units and 622,555 general partnership units. Navios Maritime Holdings Inc. (“Navios Holdings”) currently owns an approximately 10.3% ownership interest in Navios Partners and the General Partner currently owns an approximately 2.0% ownership interest in Navios Partners based on all outstanding common units and general partner units.

Fleet

Navios Partners’ fleet consists of 54 Dry bulk vessels, 47 Containerships and 49 Tanker vessels, including three newbuilding Capesize bareboat charter-in vessels expected to be delivered by the second half of 2022, two newbuilding Capesize bareboat charter-in vessels expected to be delivered by the first half of 2023, two newbuilding Panamax vessels expected to be delivered by the second half of 2022 and first half of 2023, one newbuilding VLCC bareboat charter-in vessel expected to be delivered by the second half of 2022, four newbuilding Aframax/LR2 vessels expected to be delivered in 2024 and first half of 2025, ten newbuilding Containerships expected to be delivered by the second half of 2023 and in 2024 and two Containerships agreed to be sold and expected to be delivered in the second half of 2022.

We generate revenues by charging our customers for the use of our vessels to transport their dry cargo commodities, containers, crude oil, refined petroleum products and/or bulk liquid chemicals. From time to time, we operate vessels in the spot market until the vessels have been chartered out under short-term, medium and long-term charters.

The following table provides summary information about our fleet as of May 16, 2022:

3

4

5

6

7

8

Our Charters

We provide seaborne shipping services under short, medium, and long-term time charters with customers that we believe are creditworthy. For the three month period ended March 31, 2022, Cosco represented approximately 10.6% of total revenues. For the three month period ended March 31, 2021, Hyundai Merchant Marine Co., Ltd. (“HMM”), Singapore Marine Pte Ltd. (“Singapore Marine”), and Cargill International S.A. (“Cargill”), represented approximately 21.5%, 19.4% and 12.2%, respectively, of total revenues. No other customers accounted for 10% or more of total revenues for any of the periods presented.

Our revenues are driven by the number of vessels in the fleet, the number of days during which vessels operate and our charter hire rates, which, in turn, are affected by a number of factors, including:

Time charters are available for varying periods, ranging from a single trip (spot charter) to long-term which may be many years. In general, a long-term time charter assures the vessel owner of a consistent stream of revenue. Operating the vessel in the spot market affords the owner greater spot market opportunity, which may result in high rates when vessels are in high demand or low rates when vessel availability exceeds demand. We intend to operate our vessels in the long-term charter market. Vessel charter rates are affected by world economics, international events, weather conditions, strikes, governmental policies, supply and demand and many other factors that might be beyond our control. Please read “Risk Factors” in our 2021 Annual Report on Form 20-F for a discussion of certain risks inherent in our business.

We could lose a customer or the benefits of a charter if:

9

Under some of our time charters, either party may terminate the charter contract in the event of war in specified countries or in locations that would significantly disrupt the free trade of the vessel. Some of the time charters covering our vessels require us to return to the charterer, upon the loss of the vessel, all advances paid by the charterer but not earned by us.

Trends and Factors Affecting Our Future Results of Operations

We believe the principal factors that will affect our future results of operations are the economic, regulatory, political and governmental conditions that affect the shipping industry generally and that affect conditions in countries and markets in which our vessels engage in business. Please read “Risk Factors” in our 2021 Annual Report on Form 20-F for a discussion of certain risks inherent in our business.

Results of Operations

Overview

The financial condition and the results of operations presented for the three month periods ended March 31, 2022 and 2021 of Navios Partners presented and discussed below include the following entities:

10

11

12