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 UNDERTHE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2025

Commission File Number: 001-37889

TOP SHIPS INC.
(Translation of registrant's name into English)

20 Iouliou Kaisara Str
19002, Paiania
Athens-Greece
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under coverof Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

INFORMATION CONTAINED IN THISFORM 6-K REPORT

Top Ships Inc. (togetherwith its subsidiaries, the “Company” or “Top Ships”) (NYSE: TOPS)announced today that it has entered into four sale and leaseback financing agreements with a major Chinese financier for the refinancingof two 300,000 dwt VLCC tankers, the M/Ts Julius Caesar and Legio X Equestris (expected to be concluded in October 2025),one 157,000 dwt Suezmax tanker, the M/T Eco Oceano CA (expected to be concluded in November 2025) (these three agreements, the“VLCC / Suez Financing Agreements”), and one 50,000 dwt MR product tanker, the M/T Eco Marina Del Ray (expected tobe concluded in November 2025) the (“MR Financing Agreement”). The closing of these financing agreements is subject to conditionsset forth in the relevant agreements.

Total proceeds from the VLCC / Suez Financing Agreements and the MR FinancingAgreement will amount to $207.0 million, an estimated approximately $179.8 million of which will be used to repay the four vessels’existing financing facilities and the remaining balance will be used for general working capital purposes.

VLCC / Suez Financing Agreements

The VLCC / Suez Financing Agreements have durations of ten years and providecontinuous options, after the first year, to buy back the vessels at purchase prices stipulated in the agreements.

Under the terms of the VLCC/ Suez Financing Agreements, the Company will bareboat charter back the vessels for a period often years at bareboat hire rates of $3.0 million per annum per VLCC vessel and of $2.2 million per annum for the Suezmax,plus interest based on Term SOFR plus a margin of 1.95% per annum. At the end of the ten-year period, the Company is obligatedto buy back the vessels for $38.5 million per vessel for the two VLCCs and $20.0 million for the Suezmax.

The VLCC / Suez Financing Agreements contain customary covenants and eventof default clauses, including cross-default provisions and restrictive covenants and performance requirements including (i) a ratio oftotal net debt to the aggregate market value of the Company’s fleet, current or future, of no more than 85% and (ii) minimum freeliquidity of $0.55 million per VLCC vessel and $0.4 million for the Suezmax vessel.

MR Financing Agreement

The MR Financing Agreement has a duration of seven years and provides continuousoptions, after the first year, to buy back the vessel at purchase prices stipulated in the agreement.

Under the terms of the MRFinancing Agreement, the Company will bareboat charter back the vessel at bareboat hire ratesof $2.0 million per annum plus interest based on Term SOFR plus a margin of 1.95% per annum.At the end of the seven-year period the Company has an obligation to buy back the vessel for $13.0 million. The MR Financing Agreementcontains covenants similar to VLCC / Suez Financing Agreements.

Concurrently with entry into these financing agreements, TopShips Inc. provided a guarantee of the obligations of its vessel-owning subsidiaries under the respective financing agreements, and alsoentered into a guarantee of the obligations of the vessel-owning subsidiaries of Rubico Inc. under similar financing agreements enteredinto with the same major Chinese financier in an aggregate amount of $84.0 million, expected to close in December 2025. The VLCC / SuezFinancing Agreements and MR Financing Agreement contain cross-default provisions which would be triggered by a default under these financingagreements entered into by Rubico Inc.

Cautionary Note Regarding Forward-Looking Statements

Matters discussed in this press release may constituteforward-looking statements. The Private Securities Litigation Reform Act of 1995 provides safe harbor protections for forward-lookingstatements in order to encourage companies to provide prospective information about their business. Forward-looking statements includestatements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements,which are other than statements of historical facts, including statements regarding the entry into and performance under the sale andleaseback financing agreements.

The Company desires to take advantage of the safe harborprovisions of the Private Securities Litigation Reform Act of 1995 and is including this cautionary statement in connection with thissafe harbor legislation. The words “believe,” “anticipate,” “intends,” “estimate,” “forecast,”“project,” “plan,” “potential,” “may,” “should,” “expect,” “pending,”and similar expressions identify forward-looking statements. The forward-looking statements in this report are based upon various assumptions,many of which are based, in turn, upon further assumptions, including, without limitation, management's examination of historical operatingtrends, data contained in the Company’s records, and other data available from third parties. Although the Company believes thatthese assumptions were reasonable when made, because these assumptions are inherently subject to significant uncertainties and contingencieswhich are difficult or impossible to predict and are beyond the Company’s control, the Company cannot assure you that it will achieveor accomplish these expectations, beliefs, or projections. Please see the Company’s filings with the Securities and Exchange Commissionfor a more complete discussion of these and other risks and uncertainties. The information set forth herein speaks only as of the datehereof, and the Company disclaims any intention or obligation to update any forward-looking statements as a result of developments occurringafter the date of this communication.

The information contained in this report on Form 6-Kis hereby incorporated by reference into the Company's registration statements on Form F-3 (FileNos. 333-267170, 333-268475 and 333-267545).

SIGNATURES

Pursuant to the requirements of the Securities ExchangeAct of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 19, 2025