$SBLK

$28.83 +$0.00 (0.0%) After hours

$SBLK Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 113.4M shares outstanding

Who owns SBLK?

By type of holder

Institutions 34.9% Insiders 0.0% Everyone else 65.1%

Concentration Top 10 holders own 49.1%

C.K. Limited 12.0% · Greenwich Holdings Limited 12.0%

Institutional ownership

34.9%

+1.4 pts vs last qtr

Institutional holders

200

+12 vs last qtr

Net shares bought

+1.5M

by institutions in Q2 2026

New / sold out

35 / 23

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +2.2M
Encompass Capital Advisors LLC NEW +962.5K

Biggest sellers in Q2 2026

Cooper Creek Partners Management LLC SOLD OUT −866.0K
Boston Partners −838.2K

Who is planning to sell?

Notices of proposed sale, last 12 months

$8.54M

25 notices from 11 people

Shares covered

345.4K

0.30% of the company

Arranged in advance

44%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Nikolaos Reskos Officer $2.6M
Charis Plakantonaki Officer $1.34M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+142.6%

+10.35% a year

Each share's claim on the business

−58.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$571M vs $130M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years25% 3–5 years7% 1–3 years14% Under 1 year53%

Quarterly turnover

24.7%

of institutional shares changed hands

Top 10 managers, median time held

1.8 years

Super Investors

Investment managers reporting SBLK on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
TS Two Sigma Investments, LP	3.5M	3.11%	+517.1K (+17.2%)	Q4 '25	0.1%
Shares held by quarter Peak holding3.5M (Q2'26) Change over 8 quarters+1.4M Share of the company3.110% Two Sigma Investments, LP's full portfolio →
B BlackRock, Inc.	2.8M	2.48%	+2.2M (+369.2%)	≤2021	0.0%
Shares held by quarter Peak holding2.8M (Q2'26) Change over 8 quarters+1.6M Share of the company2.480% BlackRock, Inc.'s full portfolio →

Two Sigma Investments, LP

3.5M

% of company

3.11%

Change vs last qtr

+517.1K (+17.2%)

Held since

Q4 '25

BlackRock, Inc.

2.8M

% of company

2.48%

Change vs last qtr

+2.2M (+369.2%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Star Bulk Carriers Corp., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting SBLK on Form N-PORT; together they hold 2.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VP Victory Pioneer Multi-Asset Income Fund Victory Portfolios IV	$27.7M	964.3K	0.85%	0.29%	July 31, 2026
PR PIMCO RAE Emerging Markets Fund PIMCO Equity Series	$15.2M	661.2K	0.58%	0.54%	March 31, 2026

Victory Pioneer Multi-Asset Income Fund

Victory Portfolios IV

Position value

$27.7M

% of company

0.85%

% of the fund

0.29%

As of

July 31, 2026

PIMCO RAE Emerging Markets Fund

PIMCO Equity Series

Position value

$15.2M

% of company

0.58%

% of the fund

0.54%

As of

March 31, 2026

15 more funds behind a free account

See every fund holding Star Bulk Carriers Corp. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
CL C.K. Limited 5%+ holder 13D · 11.8%	13.6M	11.96%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company11.960% Disclosed stake13D · 11.8% View the 13D/G filing →
GH Greenwich Holdings Limited 5%+ holder 13D · 11.8%	13.6M	11.96%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company11.960% Disclosed stake13D · 11.8% View the 13D/G filing →

C.K. Limited

5%+ holder13D · 11.8%

13.6M

% of company

11.96%

Change vs last qtr

—

Held since

—

Greenwich Holdings Limited

5%+ holder13D · 11.8%

13.6M

% of company

11.96%

Change vs last qtr

—

Held since

—

1 more holders behind a free account

See every insider and 5%+ holder of Star Bulk Carriers Corp..

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