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Equibles

CMDB

Costamare Bulkers Holdings Ltd

Company with tickers: CMDB

CIK
2033535
CUSIP
Y2001C101
Shares Outstanding
24,240,981
13F Activity (30d)
55 filings 51 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 96
Total Value: $78,969,388
Total Shares: 5,104,684

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 96 13F filers · Δ vs Dec 31, 2025
Top Holder
25.6%
Jun 2025 → Mar 2026 · range 25.6% – 32.4%
−4.8 pts
Top 5
54.9%
Jun 2025 → Mar 2026 · range 53.4% – 57.5%
−2.2 pts
Top 10
69.4%
Jun 2025 → Mar 2026 · range 69.4% – 71.7%
−1.9 pts
HHI
968
Jun 2025 → Mar 2026 · range 968 – 1,327
Broadly held−250

Quarterly Activity

vs Dec 31, 2025
New
14
Increased
31
Decreased
27
Sold Out
8
Unchanged
24
Holder count: +6
Institutional value: +14.6%
Shares held: +14.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large Walleye Capital LLC +82,421 114,577
Large RENAISSANCE TECHNOLOGIES LLC +66,390 204,439
Small Oceanic Investment Management LTD +50,899 255,677
Mega AMERICAN CENTURY COMPANIES INC +47,089 320,746
Mega BANK OF AMERICA CORP /DE/ +32,851 59,990

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega DIMENSIONAL FUND ADVISORS LP −50,191 1,308,857
Large Schonfeld Strategic Advisors LLC −46,695 45,371
Mid Arax Advisory Partners −21,023 1,748
Mega Nuveen, LLC −20,462 101,545
Mega MORGAN STANLEY −18,847 158,850

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega AMERIPRISE FINANCIAL INC 377,401 $5,838,392
Large MARSHALL WACE, LLP 56,859 $879,608
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 51,058 $789,867
Large LOS ANGELES CAPITAL MANAGEMENT LLC 32,624 $504,693
Mega TWO SIGMA INVESTMENTS, LP 27,990 $433,005

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 53,997 $832,093
Large Mariner, LLC 12,820 $197,556
Mega Invesco Ltd. 11,844 $182,515
Large Verition Fund Management LLC 11,340 $174,749
Small Pinnacle Holdings, LLC 631 $9,723
Filter: New 14 Increased 31 Reduced 27 Sold out 8 Unchanged 24
Showing 96 of 96
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega DIMENSIONAL FUND ADVISORS LP $20,248,015 25.64% 1,308,857
Mega BlackRock, Inc. $8,349,093 10.57% 539,696
Mega AMERIPRISE FINANCIAL INC $5,838,392 7.39% 377,401
Mega AMERICAN CENTURY COMPANIES INC $4,961,940 6.28% 320,746
Small Oceanic Investment Management LTD $3,955,323 5.01% 255,677
Large RENAISSANCE TECHNOLOGIES LLC $3,162,671 4.00% 204,439
Mega MORGAN STANLEY $2,457,405 3.11% 158,850
Mega STATE STREET CORP $2,210,523 2.80% 142,891
Large Qube Research & Technologies Ltd $1,885,793 2.39% 121,900
Large Walleye Capital LLC $1,772,506 2.24% 114,577
Mega GEODE CAPITAL MANAGEMENT, LLC $1,650,478 2.09% 106,689
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $1,575,310 1.99% 101,830
Mega Nuveen, LLC $1,570,899 1.99% 101,545
Large Russell Investments Group, Ltd. $1,460,754 1.85% 94,425
Mid BOOTHBAY FUND MANAGEMENT, LLC $1,380,527 1.75% 89,239
Mega GOLDMAN SACHS GROUP INC $1,149,405 1.46% 74,299
Large Quantinno Capital Management LP $960,748 1.22% 62,104
Mega BANK OF AMERICA CORP /DE/ Bank $928,045 1.18% 59,990
Mega CITADEL ADVISORS LLC $899,673 1.14% 58,156
Large MARSHALL WACE, LLP $879,608 1.11% 56,859
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $849,627 1.08% 54,921
Mega NORTHERN TRUST CORP Bank $824,146 1.04% 53,274
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $789,867 1.00% 51,058
Large Schonfeld Strategic Advisors LLC $701,889 0.89% 45,371
Mega JANE STREET GROUP, LLC $686,743 0.87% 44,392
Mega MILLENNIUM MANAGEMENT LLC $665,256 0.84% 43,003
Large Empowered Funds, LLC $650,204 0.82% 42,030
Large LOS ANGELES CAPITAL MANAGEMENT LLC $504,693 0.64% 32,624
Mega JPMORGAN CHASE & CO $501,395 0.63% 32,411
Mega TWO SIGMA INVESTMENTS, LP $433,005 0.55% 27,990
Mid HORIZON KINETICS ASSET MANAGEMENT LLC $426,662 0.54% 27,580
Mega Bank of New York Mellon Corp Bank $366,808 0.46% 23,711
Mid PRELUDE CAPITAL MANAGEMENT, LLC $360,976 0.46% 23,334
Large Creative Planning $330,238 0.42% 21,347
Mid Moran Wealth Management, LLC $316,779 0.40% 20,477
Large Trexquant Investment LP $308,239 0.39% 19,925
Mid XTX Topco Ltd $227,749 0.29% 14,722
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $225,026 0.28% 14,546
Mega CITIGROUP INC $224,283 0.28% 14,498
Mid WINTON GROUP Ltd $206,431 0.26% 13,344
Mega AQR CAPITAL MANAGEMENT LLC $201,370 0.25% 13,017
Mega ALLIANCEBERNSTEIN L.P. $188,300 0.24% 12,172
Mega RHUMBLINE ADVISERS $185,887 0.24% 12,016
Large Point72 Asset Management, L.P. $182,236 0.23% 11,780
Mid Savant Capital, LLC $170,958 0.22% 11,051
Mega UBS Group AG $157,979 0.20% 10,212
Mega FMR LLC $132,887 0.17% 8,590
Mega BARCLAYS PLC $111,584 0.14% 7,213
Mega DEUTSCHE BANK AG\ Bank $105,319 0.13% 6,808
Mega WELLS FARGO & COMPANY/MN $74,641 0.09% 4,825
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $66,381 0.08% 4,291
Mega VANGUARD FIDUCIARY TRUST CO Bank $56,248 0.07% 3,636
Mid GAMMA Investing LLC $40,222 0.05% 2,600
Large CWM, LLC $39,897 0.05% 2,579
Mid Tower Research Capital LLC (TRC) $35,796 0.05% 2,314
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $34,312 0.04% 2,218
Mid Parallel Advisors, LLC $30,058 0.04% 1,943
Mega BNP PARIBAS ARBITRAGE, SA $29,315 0.04% 1,895
Large Police & Firemen's Retirement System of New Jersey Pension $28,511 0.04% 1,843
Mid Blue Trust, Inc. $27,103 0.03% 1,752
Mid Arax Advisory Partners $27,041 0.03% 1,748
Large STRS OHIO $24,752 0.03% 1,600
Mid Ameritas Investment Partners, Inc. $13,288 0.02% 859
Mega ROYAL BANK OF CANADA Bank $13,102 0.02% 847
Mid SIGNATUREFD, LLC $12,917 0.02% 835
Mega Legal & General Group Plc $11,447 0.01% 740
Large NISA INVESTMENT ADVISORS, LLC $10,473 0.01% 677
Small Root Financial Partners, LLC $9,699 0.01% 627
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $7,348 0.01% 475
Mid QUADRANT CAPITAL GROUP LLC $5,816 0.01% 376
Small Essential Partners LLC $5,213 0.01% 337
Mid Sterling Capital Management LLC $4,254 0.01% 275
Micro Private Wealth Management Group, LLC $3,573 0.00% 231
Mid EverSource Wealth Advisors, LLC $3,447 0.00% 223
Mid MassMutual Private Wealth & Trust, FSB $2,861 0.00% 185
Micro Torren Management, LLC $2,722 0.00% 176
Mid Smartleaf Asset Management LLC $2,181 0.00% 141
Small Medallion Wealth Advisors, LLC $2,011 0.00% 130
Large OSAIC HOLDINGS, INC. $1,547 0.00% 100
Small ARMSTRONG ADVISORY GROUP, INC $1,392 0.00% 90
Large JONES FINANCIAL COMPANIES LLLP $1,021 0.00% 66
Small Versant Capital Management, Inc $990 0.00% 64
Mid Allworth Financial LP $990 0.00% 64
Mid Farther Finance Advisors, LLC $835 0.00% 54
Large HUNTINGTON NATIONAL BANK Bank $711 0.00% 46
Mid MAI Capital Management $603 0.00% 39
Mid IFP Advisors, Inc $587 0.00% 38
Micro Cornerstone Planning Group LLC $572 0.00% 37
Mid MATHER GROUP, LLC. $324 0.00% 21
Large ASSETMARK, INC $324 0.00% 21
Small Physician Wealth Advisors, Inc. $324 0.00% 21
Small SJS Investment Consulting Inc. $309 0.00% 20
Small Covestor Ltd $232 0.00% 15
Large FIFTH THIRD BANCORP Bank $185 0.00% 12
Mid Advisory Services Network, LLC $108 0.00% 7
Small JPL Wealth Management, LLC $61 0.00% 4

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