Star Bulk Carriers SBLK Institutional Ownership

NASDAQ SBLK

$28.86 +0.04 (+0.14%)

As of: Oct 22, 2026 · 1:07 PM EDT

Institutions by Trading Activity

202 Institutions

Increased 96 47.5%

Unchanged 40 19.8%

Reduced 66 32.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

34.75%

▲+1.63 pp QoQ

Shares Held by Institutions

39.96Mn

of 115.00Mn outstanding

▲+4.92% QoQ

Shares Outstanding

115.00Mn

75.04Mn held outside 13F filers

Institutional Investors

202

filed 13F for Jun 2026

▲+14 vs prior quarter

Net Shares Added (QoQ)

+1.87Mn

accumulated since last quarter

Value of Holdings

$1.12Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Star Bulk Carriers Corp. (NASDAQ:SBLK) appeared in the 13F filings of 202 institutional investors for the quarter ended June 30, 2026.

These investors held 34.75% of outstanding shares in Q2 2026, up from 33.12% the quarter before.
Total shares held in Star Bulk Carriers rose 4.92% versus Q1 2026, while the number of holders rose 19.53% versus Q2 2025.
Of these 202 holders, 96 added to their positions, 66 reduced their stakes and 40 left their positions unchanged.
Altogether, institutional holders owned 39.96Mn SBLK shares at the end of Q2 2026, up 1.87Mn from the prior quarter and up 5.42Mn from a year earlier.
As of June 30, 2026, Two Sigma Investments, LP held the largest stake in Star Bulk Carriers with 3.53Mn shares, or 3.07% of shares outstanding.
The largest position increases in SBLK for Q2 2026 were by BlackRock, Inc. (+2.22Mn shares), Acadian Asset Management LLC (+787.44K shares), Artemis Investment Management LLP (+685.91K shares), Marex Group Ltd (+602K shares) and Two Sigma Investments, LP (+517.06K shares).
Among holders that kept a stake in Star Bulk Carriers, the biggest sellers in Q2 2026 were Boston Partners (-838.24K shares), D. E. Shaw & Co., Inc. (-582.56K shares), HRT Financial LP (-565.81K shares), Morgan Stanley (-494.46K shares) and Marshall Wace, LLP (-430.27K shares).
Per Business Quant data, the 10 largest holders of Star Bulk Carriers at the end of Q2 2026 were Two Sigma Investments, LP (3.53Mn shares), BlackRock, Inc. (2.82Mn shares), Renaissance Technologies LLC (2.1Mn shares), Victory Capital Management Inc (2.03Mn shares), Goldman Sachs Group Inc (2.01Mn shares), Philosophy Capital Management LLC (1.75Mn shares), Focus Partners Wealth (1.26Mn shares), Qube Research & Technologies Ltd (1.16Mn shares), Morgan Stanley (1.04Mn shares) and Fearnley Asset Management As (1Mn shares).

Form 13F Holdings

202 Institutional Holders

Report period 30 Jun, 2026

Total shares held 39.96Mn

Of outstanding 34.75%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	TWO SIGMA INVESTMENTS, LP	0001179392	3,530,020	3.07%	▲517,057	+17.16%	$88.14Mn
2	BlackRock, Inc.	0002012383	2,817,294	2.45%	▲2,216,799	+369.16%	$70.35Mn
3	RENAISSANCE TECHNOLOGIES LLC	0001037389	2,099,637	1.83%	▲32,000	+1.55%	$52.43Mn
4	VICTORY CAPITAL MANAGEMENT INC	0001040188	2,027,422	1.76%	▲107,133	+5.58%	$50.62Mn
5	Goldman Sachs Group Inc	0000886982	2,014,371	1.75%	▲276,438	+15.91%	$50.30Mn
6	Philosophy Capital Management LLC	0001869199	1,752,666	1.52%	▼121,752	-6.50%	$43.76Mn
7	Focus Partners Wealth	0001542153	1,263,659	1.10%	▲123,836	+10.86%	$31.55Mn
8	Qube Research & Technologies Ltd	0001729829	1,156,624	1.01%	▲69,782	+6.42%	$28.88Mn
9	Morgan Stanley	0000895421	1,040,248	0.90%	▼494,457	-32.22%	$25.98Mn
10	FEARNLEY ASSET MANAGEMENT AS	0002056821	1,004,209	0.87%	▲53,003	+5.57%	$25.08Mn
11	Encompass Capital Advisors LLC	0001541901	962,500	0.84%	▲962,500	0.00%	$24.03Mn
12	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	926,378	0.81%	▲168,952	+22.31%	$23.13Mn
13	Boston Partners	0001386060	788,200	0.69%	▼838,244	-51.54%	$19.69Mn
14	ACADIAN ASSET MANAGEMENT LLC	0000916542	788,099	0.69%	▲787,444	+120,220.46%	$19.66K
15	MARSHALL WACE, LLP	0001318757	786,668	0.68%	▼430,269	-35.36%	$19.64Mn
16	Artemis Investment Management LLP	0001535385	761,688	0.66%	▲685,915	+905.22%	$19.02Mn
17	Marex Group Ltd	0001997464	728,022	0.63%	▲601,998	+477.69%	$18.18Mn
18	Bridgewater Associates, LP	0001350694	718,057	0.62%	▲166,728	+30.24%	$17.93Mn
19	Jpmorgan Chase & Co	0000019617	675,646	0.59%	▲23,101	+3.54%	$16.65Mn
20	Allianz Asset Management GmbH	0001535323	649,841	0.57%	▼149,600	-18.71%	$16.23Mn

Showing 1 to 20 of 202 holders