Castor Maritime (CTRM) director files Form 3 on indirect holdings

Rhea-AI Filing Summary

Castor Maritime Inc. director and officer Panagiotidis Petros Panagiotis has filed an initial statement of indirect holdings in the company. The filing shows 11,240 Common Shares and 12,000 Series B Preferred Shares held through Thalassa Investment Co. S.A., with a disclaimer that he is not necessarily the beneficial owner beyond any pecuniary interest.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Panagiotidis Petros Panagiotis

(Last) (First) (Middle)

223 CHRISTODOULOU CHATZIPAVLOU STREET,

HAWAII ROYAL GARDENS

(Street)

LIMASSOL 3036

(City) (State) (Zip)

CYPRUS

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Castor Maritime Inc. [ CTRM ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Shares	11,240	I	By Thalassa Investment Co. S.A.(1)
Series B Preferred Shares	12,000	I	By Thalassa Investment Co. S.A.(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The Reporting Person disclaims beneficial ownership in these securities except to the extent he has a pecuniary interest therin and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 or for any other purpose.

Remarks:

Chairman, Chief Executive Officer and Chief Financial Officer

	/s/ Petros Panagiotis Panagiotidis	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What insider holdings in Castor Maritime (CTRM) are reported in this Form 3?

The Form 3 reports indirect holdings of 11,240 Common Shares and 12,000 Series B Preferred Shares of Castor Maritime Inc., all held through Thalassa Investment Co. S.A. as of the reported date for the director and officer.

How are the Castor Maritime (CTRM) shares held for Panagiotidis Petros Panagiotis?

All reported Castor Maritime securities are held indirectly by Thalassa Investment Co. S.A.. The filing classifies the ownership type as indirect, meaning the reporting person’s interest is through this entity rather than direct personal registration in his own name.

Does the Castor Maritime (CTRM) insider fully acknowledge beneficial ownership of these shares?

No. The reporting person disclaims beneficial ownership of the securities except to the extent of any pecuniary interest. The footnote states that the report should not be deemed an admission of beneficial ownership for Section 16 or other purposes.

What is the role of Panagiotidis Petros Panagiotis at Castor Maritime (CTRM)?

He is identified as both a director and an officer of Castor Maritime Inc., with his specific officer title referenced in the remarks section. This Form 3 records his initial reportable indirect holdings in the company’s Common and Series B Preferred Shares.

Does this Castor Maritime (CTRM) Form 3 show any insider buying or selling activity?

No buying or selling activity is shown. The entries are classified as holdings with unknown transaction codes, reflecting the number of Common and Series B Preferred Shares indirectly held after the reported date, rather than new purchase or sale transactions.