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 205 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

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	OAKTREE CAPITAL MANAGEMENT LP CIK 949509 · View history	$145.80M 6,107,983 shares	2.34%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2024	▾
02	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$127.58M 5,344,838 shares	0.05%	-7.93K(-0.10%)Reduced	SEC filing ↗ May 14, 2024	▾
03	BlackRock Inc. CIK 1364742 · View history	$83.89M 3,514,252 shares	0.00%	+1.96M(+125.70%)Added	SEC filing ↗ May 10, 2024	▾
04	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$67.16M 2,813,713 shares	0.06%	+890.65K(+46.30%)Added	SEC filing ↗ May 15, 2024	▾
05	Encompass Capital Advisors LLC CIK 1541901 · View history	$38.42M 1,609,402 shares	2.08%	+709.40K(+78.80%)Added	SEC filing ↗ May 15, 2024	▾
06	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$33.11M 1,387,200 shares	0.05%	+60.80K(+4.60%)Added	SEC filing ↗ May 13, 2024	▾
07	MORGAN STANLEY CIK 895421 · Amended · View history	$31.32M 1,312,031 shares	0.00%	+242.21K(+22.60%)Added	SEC filing ↗ Oct 17, 2024	▾
08	Ion Asset Management Ltd. CIK 1603837 · View history	$27.83M 1,165,862 shares	2.03%	-647.14K(-35.70%)Reduced	SEC filing ↗ May 15, 2024	▾
09	MARSHALL WACE, LLP CIK 1318757 · View history	$21.19M 887,884 shares	0.04%	+319.45K(+56.20%)Added	SEC filing ↗ May 15, 2024	▾
10	Artemis Investment Management LLP CIK 1535385 · View history	$18.91M 792,802 shares	0.25%	+420.10K(+112.70%)Added	SEC filing ↗ Apr 16, 2024	▾
11	Amundi CIK 1330387 · View history	$16.82M 716,250 shares	0.01%	+715.92K(+214,346.10%)Added	SEC filing ↗ May 15, 2024	▾
12	Grand Alliance Asset Management Ltd CIK 1986124 · View history	$16.71M 700,000 shares	9.51%	+100.00K(+16.70%)Added	SEC filing ↗ May 15, 2024	▾
13	Gratus Capital, LLC CIK 1652103 · View history	$16.66M 697,867 shares	0.77%	+17.12K(+2.50%)Added	SEC filing ↗ May 13, 2024	▾
14	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$16.16M 676,845 shares	0.04%	+649.60K(+2,384.40%)Added	SEC filing ↗ May 15, 2024	▾
15	WELLS FARGO & COMPANY/MN CIK 72971 · View history	$14.68M 615,029 shares	0.00%	-142.66K(-18.80%)Reduced	SEC filing ↗ May 10, 2024	▾
16	TWO SIGMA ADVISERS, LP CIK 1478735 · View history	$12.59M 527,500 shares	0.03%	+448.90K(+571.10%)Added	SEC filing ↗ May 15, 2024	▾
17	Gilman Hill Asset Management, LLC CIK 1551969 · View history	$9.65M 404,110 shares	1.73%	+1.05K(+0.30%)Added	SEC filing ↗ Apr 12, 2024	▾
18	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$8.84M 370,410 shares	0.01%	+333.85K(+913.00%)Added	SEC filing ↗ May 15, 2024	▾
19	Cubist Systematic Strategies, LLC CIK 1603465 · View history	$8.47M 354,710 shares	0.10%	+338.69K(+2,114.60%)Added	SEC filing ↗ May 15, 2024	▾
20	Ramirez Asset Management, Inc. CIK 1992110 · View history	$8.37M 350,818 shares	1.69%	-29.14K(-7.70%)Reduced	SEC filing ↗ May 14, 2024	▾

Showing 20 / 205 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

205

Cancelled or null records excluded

Disclosed shares

39,915,966

Not deduplicated across managers

Disclosed value

$951.10M

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. · Q1 2024

Explore all 205 reporting institutions.

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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.