Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CMDB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | DIMENSIONAL FUND ADVISORS LP | 1.3M | $20.2M | -3.7% | 5.413% | 0.00% |
| 2 | BlackRock, Inc. | 540K | $8.3M | +0.5% | 2.232% | 0.00% |
| 3 | AMERIPRISE FINANCIAL INC | 377K | $5.8M | β | 1.561% | 0.00% |
| 4 | AMERICAN CENTURY COMPANIES INC | 321K | $5.0M | +17.2% | 1.327% | 0.00% |
| 5 | Oceanic Investment Management LTD | 256K | $4.0M | +24.9% | 1.057% | 3.37% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 204K | $3.2M | +48.1% | 0.846% | 0.00% |
| 7 | MORGAN STANLEY | 159K | $2.5M | -10.6% | 0.657% | 0.00% |
| 8 | STATE STREET CORP | 143K | $2.2M | +0.8% | 0.591% | 0.00% |
| 9 | Qube Research & Technologies Ltd | 122K | $1.9M | +3.6% | 0.504% | 0.00% |
| 10 | Walleye Capital LLC | 115K | $1.8M | +256.3% | 0.474% | 0.01% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 107K | $1.7M | +1.2% | 0.441% | 0.00% |
| 12 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 102K | $1.6M | -15.0% | 0.421% | 0.03% |
| 13 | Nuveen, LLC | 102K | $1.6M | -16.8% | 0.420% | 0.00% |
| 14 | Russell Investments Group, Ltd. | 94K | $1.5M | +10.1% | 0.391% | 0.00% |
| 15 | BOOTHBAY FUND MANAGEMENT, LLC | 89K | $1.4M | +35.5% | 0.369% | 0.04% |
| 16 | GOLDMAN SACHS GROUP INC | 74K | $1.1M | -7.0% | 0.307% | 0.00% |
| 17 | Quantinno Capital Management LP | 62K | $961K | +25.4% | 0.257% | 0.00% |
| 18 | BANK OF AMERICA CORP /DE/ | 60K | $928K | +121.0% | 0.248% | 0.00% |
| 19 | CITADEL ADVISORS LLC | 58K | $900K | -1.9% | 0.240% | 0.00% |
| 20 | MARSHALL WACE, LLP | 57K | $880K | β | 0.235% | 0.00% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 55K | $850K | -4.3% | 0.227% | 0.00% |
| 22 | NORTHERN TRUST CORP | 53K | $824K | +7.7% | 0.220% | 0.00% |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | 51K | $790K | β | 0.211% | 0.00% |
| 24 | Schonfeld Strategic Advisors LLC | 45K | $702K | -50.7% | 0.188% | 0.01% |
| 25 | JANE STREET GROUP, LLC | 44K | $687K | +18.7% | 0.184% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in CMDB β a direct measure of their conviction.
Filings activity in CMDB during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new CMDB position in Q1 2026
Institutions that fully closed their CMDB position in Q1 2026
4 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 94 | +8.0% | 18.09% | +2.25 pp | $79M | +14% |
| Q4 2025 | 87 | 1.1% | 15.84% | +1.43 pp | $69M | +9.9% |
| Q3 2025 | 88 | +1.1% | 14.41% | +5.40 pp | $63M | +60% |
| Q2 2025 | 87 | β | 9.01% | β | $39M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CMDB stock.
Based on Q1 2026 13F filings, institutional ownership of Costamare Bulkers Holdings Ltd stands at 18.1%, held across 94 reporting institutions.
DIMENSIONAL FUND ADVISORS LP is the largest reported institutional holder of CMDB, with approximately 1,308,857 shares worth $0.02B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of CMDB, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for CMDB is 76 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
15 institutions opened new positions in CMDB during Q1 2026, while 8 fully exited. 55 added to existing positions and 23 trimmed.
CMDB institutional ownership rose by 2.25 percentage points quarter-over-quarter, with a net change of +7 holders.
The top 10 institutions account for 69.8% of all reported 13F value in CMDB, and the top 25 account for 90.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Costamare Bulkers Holdings Ltd (CMDB) Institutional Ownership