Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2025

Earnings Per Common Share [Abstract]

Calculation of Basic and Diluted Earnings per Share

The components of the calculation of basic and diluted earnings per common share are as follows:

	Year ended December 31,			Year ended December 31,			Year ended December 31,
	2023			2024			2025
Net income from continuing operations, net of taxes		21,303,156			15,304,934			21,542,163
Net income from discontinued operations, net of taxes		17,339,332			—			—
Less: Net income attributable to non-controlling interest in subsidiaries		—			(685,938	)		(2,273,340	)
Net income attributable to Castor Maritime Inc.	$	38,642,488		$	14,618,996		$	19,268,823
Less: Dividend on Series D Preferred Shares		(1,020,833	)		(2,645,833	)		(4,979,167	)
Less: Deemed dividend on Series D Preferred Shares		(196,296	)		(606,444	)		(3,005,817	)
Less: Dividend on Series E Preferred Shares		—			—			(189,583	)
Less: Deemed dividend on Series E Preferred Shares		—			—			(168,629	)
Less: Deemed dividend on warrants repurchased		(444,885	)		—			—
Add: Deemed contribution from Series D preferred shareholders		—			22,437,675			—
Net income available to common shareholders, basic		36,980,474			33,804,394			10,925,627
Dividend on Series D Preferred Shares		1,020,833			2,645,833			4,979,167
Deemed dividend on Series D Preferred Shares		196,296			606,444			3,005,817
Dividend on Series E Preferred Shares		—			—			189,583
Deemed dividend on Series E Preferred Shares		—			—			168,629
Deemed contribution from Series D preferred shareholders		—			(22,437,675	)		—
Effect of subsidiary share based expense on diluted EPS		—			—			(30,521	)
Net income attributable to common shareholders, diluted		38,197,603			14,618,996			19,238,302
Weighted average number of common shares outstanding, basic		9,571,045			9,662,354			9,662,354
Effect of dilutive shares		12,382,788			29,082,896			43,990,556
Weighted average number of common shares outstanding, diluted		21,953,833			38,745,250			53,652,910
Earnings per common share, basic, continuing operations	$	2.05		$	3.50		$	1.13
Earnings per common share, diluted, continuing operations	$	0.95		$	0.38		$	0.36
Earnings per common share, basic, discontinued operations	$	1.81		$	—		$	—
Earnings per common share, diluted, discontinued operations	$	0.79		$	—		$	—
Earnings per common share, basic, Total	$	3.86		$	3.50		$	1.13
Earnings per common share, diluted, Total	$	1.74		$	0.38		$	0.36