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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +6 vs. previous quarter
- 25
- 13F valueReported value at the end of Q2 2026
- $902.9K
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding CTRM, Q2 2026
No superinvestor reported holding CTRM at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Castor Maritime Inc. insiders from Form 4, newest first.
No open-market purchases or sales by Castor Maritime Inc. insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Castor Maritime Inc. at the end of Q2 2026; 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 |