Company · Ownership research

Star Bulk Carriers Corp. SBLK

CIK 0001386716 · CUSIP Y8162K204

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP Y8162K204 (SBLK), not CUSIP Y8162K904 (SBLK), CUSIP Y8162K954 (SBLK), and does not merge CUSIPs.

This page lists the top 20 of 174 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$112.11M 5,832,805 shares	0.04%	+386.61K(+7.10%)Added	SEC filing ↗ Feb 17, 2026	▾
02	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$41.26M 2,146,631 shares	0.01%	-20.26K(-0.90%)Reduced	SEC filing ↗ Feb 17, 2026	▾
03	OAKTREE CAPITAL MANAGEMENT LP CIK 949509 · View history	$37.73M 1,962,892 shares	0.61%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
04	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$35.18M 1,830,389 shares	0.05%	-101.72K(-5.30%)Reduced	SEC filing ↗ Feb 12, 2026	▾
05	Philosophy Capital Management LLC CIK 1869199 · View history	$31.71M 1,650,000 shares	3.71%	+200.00K(+13.80%)Added	SEC filing ↗ Feb 17, 2026	▾
06	MORGAN STANLEY CIK 895421 · Amended · View history	$21.03M 1,094,404 shares	0.00%	-54.92K(-4.80%)Reduced	SEC filing ↗ May 27, 2026	▾
07	Focus Partners Wealth CIK 1542153 · View history	$19.39M 1,041,252 shares	0.02%	+43.16K(+4.30%)Added	SEC filing ↗ Feb 13, 2026	▾
08	UBS Group AG CIK 1610520 · View history	$17.61M 915,978 shares	0.00%	-893.72K(-49.40%)Reduced	SEC filing ↗ Jan 29, 2026	▾
09	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$17.05M 887,056 shares	0.01%	+807.75K(+1,018.50%)Added	SEC filing ↗ Feb 17, 2026	▾
10	Boston Partners CIK 1386060 · View history	$16.21M 843,098 shares	0.02%	+682.41K(+424.70%)Added	SEC filing ↗ Feb 13, 2026	▾
11	DNB Asset Management AS CIK 1456670 · View history	$15.70M 817,099 shares	0.05%	-9.53K(-1.20%)Reduced	SEC filing ↗ Feb 5, 2026	▾
12	Point72 Asset Management, L.P. CIK 1603466 · View history	$15.51M 807,152 shares	0.02%	+807.15KNew	SEC filing ↗ Feb 17, 2026	▾
13	Allianz Asset Management GmbH CIK 1535323 · View history	$14.74M 766,774 shares	0.02%	+113.79K(+17.40%)Added	SEC filing ↗ Feb 11, 2026	▾
14	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$12.21M 635,394 shares	0.00%	+201.27K(+46.40%)Added	SEC filing ↗ Mar 25, 2026	▾
15	Bridgewater Associates, LP CIK 1350694 · View history	$11.62M 604,686 shares	0.04%	+526.20K(+670.50%)Added	SEC filing ↗ Feb 13, 2026	▾
16	FEARNLEY ASSET MANAGEMENT AS CIK 2056821 · Amended · View history	$11.10M 577,316 shares	5.09%	—	SEC filing ↗ Mar 3, 2026	▾
17	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$10.81M 562,400 shares	0.02%	+562.40KNew	SEC filing ↗ Feb 17, 2026	▾
18	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$9.40M 489,010 shares	0.01%	+68.36K(+16.20%)Added	SEC filing ↗ Feb 17, 2026	▾
19	Jump Financial, LLC CIK 1831577 · View history	$9.15M 476,101 shares	0.11%	+476.10KNew	SEC filing ↗ Feb 17, 2026	▾
20	FRANKLIN RESOURCES INC CIK 38777 · View history	$8.90M 463,275 shares	0.00%	+74.00K(+19.00%)Added	SEC filing ↗ Feb 11, 2026	▾

Showing 20 / 174 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

174

Cancelled or null records excluded

Disclosed shares

32,620,686

Not deduplicated across managers

Disclosed value

$626.35M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Star Bulk Carriers Corp. · Q4 2025

Explore all 174 reporting institutions.

This page includes 20 of 174 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.