CTRM · Castor Maritime Inc. · Shareholders & Ownership
Every disclosed holder of CTRM in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns CTRM
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 427,387 | — |
| Insiders (Forms 3, 4, 5) | 23,240 | — |
| 13D/G-only blocks | 0 | — |
| Registered funds (N-PORT, not summed) | 0 | — |
% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of CTRM
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
TOWERVIEW LLC
13F
CIK 1166573 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
240,000 | ||
| 2 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
64,817 | ||
| 3 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
26,060 | ||
| 4 |
Panagiotidis Petros Panagiotis
Insider
CIK 2118775 · Mar 18, 2026
Director, See Remarks, issuer-wide
|
23,240 | ||
| 5 |
NewEdge Advisors, LLC
13F
CIK 1633516 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
21,912 | ||
| 6 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
21,202 | ||
| 7 |
Apriem Advisors
13F
CIK 1425165 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
19,000 | ||
| 8 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,558 | ||
| 9 |
Centiva Capital, LP
13F
CIK 1692507 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,248 | ||
| 10 |
SIMPLEX TRADING, LLC
13F
CIK 1488542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,510 | ||
| 11 |
GROUP ONE TRADING LLC
13F
CIK 932540 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
|
571 | ||
| 12 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
254 | ||
| 13 |
SBI Securities Co., Ltd.
13F
CIK 1851815 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
101 | ||
| 14 |
JONES FINANCIAL COMPANIES LLLP
13F
CIK 815917 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
25 | ||
| 15 |
Allworth Financial LP
13F
CIK 1555170 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
20 | ||
| 16 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
20 | ||
| 17 |
WOLFF WIESE MAGANA LLC
13F
CIK 1832097 · Registered investment adviser · Sep 30, 2026
|
20 | ||
| 18 |
Caitong International Asset Management Co., Ltd
13F
CIK 1963355 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16 | ||
| 19 |
Farther Finance Advisors, LLC
13F
CIK 1992825 · Registered investment adviser · Sep 30, 2026
|
15 | ||
| 20 |
TD Waterhouse Canada Inc.
13F
CIK 1999606 · Unknown · Sep 30, 2026
|
12 | ||
| 21 |
Federation des caisses Desjardins du Quebec
13F
CIK 2022297 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10 | ||
| 22 |
Parallel Advisors, LLC
13F
CIK 1690010 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10 | ||
| 23 |
Cape Investment Advisory, Inc.
13F
CIK 1944437 · Registered investment adviser · Sep 30, 2026
|
4 | ||
| 24 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 | ||
| 25 |
Steward Partners Investment Advisory, LLC
13F
CIK 1723397 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.