Castor MaritimeCTRM
13F holders, Q1 2026 (March 31)19holders −6
4new positions
10sold out
1famous investor
$1.85avg. 13F price*
At the end of Q1 2026, 19 institutions reported holding Castor Maritime Inc. (CTRM) in their 13F filings, down 6 from Q4 2025. 4 opened new positions and 10 sold out. The largest holders were Towerview LLC ($444K), Renaissance Technologies ($137K) and Goldman Sachs Group Inc. ($39K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Castor Maritime Inc.
- CUSIP
- Y1146L208
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $21K |
| Exits | 10 | $330K |
All 13F filers, Q4 2025 → Q1 2026: 49,140 shares bought and 168,825 shares sold, net −119,685 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 19 holders
| Towerview LLC | 0.29% | No change | 240,000 | $444K |
| Renaissance Technologies | 0.00% | Add +82.1% | 73,869 | $137K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -27.1% | 21,081 | $39K |
| Apriem Advisors | 0.00% | No change | 19,000 | $35K |
| Centiva Capital, LP | 0.00% | New | 11,089 | $21K |
| Simplex Trading, LLC | 0.00% | Add +122.4% | 5,878 | $11K |
| UBS Group AG | 0.00% | Add +202.6% | 2,227 | $4K |
| Group One Trading LLC | 0.00% | Reduce -75.1% | 671 | $1K |
| Morgan Stanley | 0.00% | Reduce -1.9% | 254 | $470 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -12.9% | 101 | $187 |
| Allworth Financial LP | 0.00% | No change | 20 | $37 |
| Wolff Wiese Magana LLC | 0.00% | No change | 20 | $37 |
| Farther Finance Advisors, LLC | 0.00% | New | 15 | $27 |
| Robinswood Financial LLC | 0.00% | No change | 15 | $27 |
| Parallel Advisors, LLC | 0.00% | No change | 10 | $19 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 10 | $19 |
| Gill Capital Partners, LLC | 0.00% | New | 6 | $11 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 4 | $7 |
| Russell Investments Group, Ltd. | 0.00% | No change | 1 | $2 |
"% of holder's portfolio" is CTRM's weight in each manager's 13F, not the share of Castor Maritime Inc. the manager owns.