Castor Maritime Inc.
CTRM- Exchange
- Nasdaq
- Industry
- Deep Sea Foreign Transportation of Freight
- SEC CIK
- 0001720161
No open-market purchases or sales by Castor Maritime Inc. insiders were filed in the last 90 days; 25 institutions reported holding it in 13F filings for Q2 2026, worth $902.9K in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Castor Maritime Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 25
- +6 vs. Q1 2026
- Shares held
- 430.2K
- +55.9K (+14.9%) vs. Q1 2026
- Total value
- $902.9K
- +$210.5K (+30.4%) vs. Q1 2026
- New holders
- 8
- 4 more added
- Sold out
- 2
- 2 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CTRM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 25 | $902.9K |
| Q1 2026 | 19 | $692.4K |
| Q4 2025 | 25 | $1.02M |
| Q3 2025 | 18 | $778.5K |
| Q2 2025 | 17 | $852.6K |
| Q1 2025 | 16 | $925.1K |
| Q4 2024 | 17 | $1.08M |
| Q3 2024 | 22 | $659.0K |
| Q2 2024 | 22 | $577.8K |
| Q1 2024 | 20 | $383.1K |
| Q4 2023 | 30 | $479.1K |
| Q3 2023 | 28 | $392.7K |
| Q2 2023 | 27 | $398.9K |
| Q1 2023 | 29 | $9.15M |
| Q4 2022 | 33 | $1.91M |
| Q3 2022 | 28 | $1.44M |
| Q2 2022 | 32 | $1.95M |
| Q1 2022 | 28 | $1.68M |
| Q4 2021 | 29 | $6.31M |
| Q3 2021 | 33 | $6.66M |
| Q2 2021 | 31 | $12.2M |
| Q1 2021 | 40 | $7.71M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Castor Maritime Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Towerview LLC | 240,000 | $504.0K | 0.33% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 64,817 | $136.1K | 0.00% | −9,052−12.3% | Reduced |
| Citadel Advisors LLC | 26,060 | $54.5K | 0.00% | +26,060 | New |
| GWM Advisors LLC | 21,912 | $46.0K | 0.00% | +21,912 | New |
| Goldman Sachs Group Inc | 21,202 | $44.5K | 0.00% | +121+0.6% | Added |
| Apriem Advisors | 19,000 | $39.9K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,558 | $26.2K | 0.00% | +12,558 | New |
| Centiva Capital, LP | 12,248 | $25.6K | 0.00% | +1,159+10.5% | Added |
| Simplex Trading, LLC | 8,510 | $17.9K | 0.00% | +2,632+44.8% | Added |
| TD Waterhouse Canada Inc. | 2,800 | $5.89K | 0.00% | +2,800 | New |
| Group One Trading, L.P. | 571 | $1.19K | 0.00% | −100−14.9% | Reduced |
| Morgan Stanley | 254 | $533 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 101 | $212 | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 25 | $53 | 0.00% | +25 | New |
| Allworth Financial LP | 20 | $42 | 0.00% | 00.0% | Unchanged |
| Wolff Wiese Magana LLC | 20 | $42 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 20 | $42 | 0.00% | +20 | New |
| Caitong International Asset Management Co., Ltd | 16 | $34 | 0.00% | +12+300.0% | Added |
| Farther Finance Advisors, LLC | 15 | $32 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 10 | $21 | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 10 | $21 | 0.00% | 00.0% | Unchanged |
| Gill Capital Partners, LLC | 6 | $13 | 0.00% | 00.0% | Unchanged |
| Cape Investment Advisory, Inc. | 4 | $8 | 0.00% | +4 | New |
| Russell Investments Group, Ltd. | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 1 | $2 | 0.00% | +1 | New |
| UBS Group AG | 0 | $0 | 0.00% | −2,227−100.0% | Sold out |
| Robinswood Financial LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |