Star Bulk Carriers

SBLK • NASDAQ

Star Bulk Carriers is a marine shipping company in the industrials sector on NASDAQ, led by Petros Alexandros Pappas, with a market cap of $2.4B. As of Q3 2025, 25% of shares are held by 162 institutional investors, with ALLIANCEBERNSTEIN L.P. as the largest holder at 4.76%.

CEOPetros Alexandros Pappas

Market Cap$2.4B

Marine Shipping

Industrials

Employees216.0

Websitestarbulk.com

Overview

Overview of institutional ownership in SBLK as of Q3 2025 with a market cap of $2.1B

All Institutions

Institutions: 162
Value Held: $539.0M
Shares Held: 29.0M
Avg Position: $3.3M
Median Position: $290.8K

Hedge Funds

Hedge Funds: 26
Value Held: $145.5M
Shares Held: 7.8M
Avg Position: $5.6M
Median Position: $1.5M

Ownership Breakdown

Institutional (non-HF)

18.52%

$393.5M

Hedge Funds

6.85%

$145.5M

Retail & Other

74.64%

$1.6B

Based on market cap of $2.1B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in SBLK as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
ALLIANCEBERNSTEIN L.P. Long Only Manager	Seth Perry Bernstein CEO	$101.2M 0.03% of portfolio	4.76% 5.4M shares	Q2 2025 Held for 6 months	$317.45B
BlackRock, Inc. Institution	Laurence D. Fink CEO	$43.7M 0.00% of portfolio	2.05% 2.3M shares	Q2 2020 Held for 5y 6m	$5.67T
AMERIPRISE FINANCIAL INC Institution	Jim Cracchiolo CEO	$40.3M 0.01% of portfolio	1.90% 2.2M shares	Q4 2021 Held for 4 years	$433.11B
OAKTREE CAPITAL MANAGEMENT LP Hedge Fund•Multi-Strategy	Robert J O'Leary CEO	$36.5M 0.77% of portfolio	1.72% 2.0M shares	Q3 2013 Held for 12y 3m	$4.7B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	David Allen Lippe CEO	$35.9M 0.05% of portfolio	1.69% 1.9M shares	Q3 2016 Held for 9y 3m	$75.8B
UBS Group AG Institution	Sergio P. Ermotti CEO	$33.6M 0.01% of portfolio	1.58% 1.8M shares	Q4 2014 Held for 11 years	$511.60B
P Philosophy Capital Management LLC Hedge Fund•Multi-Strategy	Jacob Daniel Rubin Managing Partner	$27.0M 3.12% of portfolio	1.27% 1.5M shares	Q3 2024 Held for 1y 3m	$864.0M
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$21.4M 0.00% of portfolio	1.01% 1.1M shares	Q3 2013 Held for 12y 3m	$1.65T
C Colony Group, LLC Institution	-	$18.6M 0.03% of portfolio	0.87% 998.1K shares	Q3 2024 Held for 1y 3m	$61.0B
D DnB Asset Management AS Institution	-	$15.4M 0.06% of portfolio	0.72% 826.6K shares	Q2 2024 Held for 1y 6m	$26.8B

Net Capital Flow

Institutional buying and selling activity for SBLK in Q3 2025

Traded: −$102.6M
Buyers: 65
Sellers: 81
Total Bought: +$114.2M
Total Sold: −$216.7M
Avg Position: $2.8M

Biggest Buyers

Institution	Net Bought	Current Position
ALLIANCEBERNSTEIN L.P. Long Only Manager	+$31.3M +1.7M shares	$101.2M 5.4M shares
BlackRock, Inc. Institution	+$14.9M +801.4K shares	$43.7M 2.3M shares
MORGAN STANLEY RIA/Wealth	+$11.9M +642.1K shares	$21.4M 1.1M shares
AMERIPRISE FINANCIAL INC Institution	+$10.0M +539.6K shares	$40.3M 2.2M shares
GEODE CAPITAL MANAGEMENT LLC ETF Provider	+$9.7M +521.7K shares	$12.0M 643.8K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	+$4.5M +241.0K shares	$4.5M 241.0K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$4.1M +219.2K shares	$8.8M 472.7K shares
A Allianz Asset Management AG Institution	+$3.1M +168.5K shares	$12.1M 653.0K shares
MIRABELLA FINANCIAL SERVICES LLP Institution	+$2.8M +151.8K shares	$2.8M 151.8K shares
Schonfeld Strategic Advisors LLC Hedge Fund•Multi-Strategy	+$2.0M +109.6K shares	$3.6M 194.0K shares

Biggest Sellers

Institution	Net Sold	Current Position
Kingstone Capital Partners Texas, LLC RIA/Wealth	−$57.2M −3.3M shares	Sold Off 0 shares
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	−$33.2M −1.9M shares	Sold Off 0 shares
UBS Group AG Institution	−$24.3M −1.3M shares	$33.6M 1.8M shares
OAKTREE CAPITAL MANAGEMENT LP Hedge Fund•Multi-Strategy	−$23.6M −1.3M shares	$36.5M 2.0M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$20.5M −1.2M shares	Sold Off 0 shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	−$11.8M −685.0K shares	Sold Off 0 shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	−$9.5M −549.1K shares	Sold Off 0 shares
G Grand Alliance Asset Management Ltd Hedge Fund•Market Neutral	−$8.6M −500.0K shares	Sold Off 0 shares
Gilman Hill Asset Management, LLC RIA/Wealth	−$6.7M −388.8K shares	Sold Off 0 shares
6 683 Capital Management, LLC Hedge Fund•Long/Short	−$2.3M −125.0K shares	$1.9M 100.0K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited SBLK in Q3 2025

New Positions: 8
New Value: $2.1M
Exited Positions: 28
Exited Value: $153.1M

New Positions

Institution	Position Value
Bridgewater Associates, LP Hedge Fund•Global Macro	$1.5M 78.5K shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	$360.6K 19.4K shares
S State of Alaska, Department of Revenue Institution	$121.4K 6.5K shares
Bayforest Capital Ltd Hedge Fund•Quant	$111.2K 6.0K shares
Morse Asset Management, Inc RIA/Wealth	$37.2K 2.0K shares
Triumph Capital Management RIA/Wealth	$26.0K 1.4K shares
T Turning Point Benefit Group, Inc. Institution	$15.0K 803.0 shares
Union Bankshares Corp Institution	$93.0 5.0 shares

Exited Positions

Institution	Previous Position
Kingstone Capital Partners Texas, LLC RIA/Wealth	$57.2M 3.3M shares
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	$33.2M 1.9M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	$20.5M 1.2M shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	$11.8M 685.0K shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	$9.5M 549.1K shares
G Grand Alliance Asset Management Ltd Hedge Fund•Market Neutral	$8.6M 500.0K shares
Gilman Hill Asset Management, LLC RIA/Wealth	$6.7M 388.8K shares
Janney Montgomery Scott LLC RIA/Wealth	$1.7M 96.8K shares
S Squarepoint Ops LLC Hedge Fund•Quant	$751.3K 43.6K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	$566.4K 32.8K shares

Options Activity

Institutions with the largest Call and Put options positions in SBLK as of Q3 2025

Call Positions: 8
Call Value: $19.9M
Put Positions: 9
Put Value: $11.6M

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$9.2M 5.0K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$4.3M 2.3K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$2.6M 1.4K contracts
J JANE STREET GROUP, LLC Institution	$1.9M 1.0K contracts
S SIG BROKERAGE, LP Institution	$929.5K 500.0 contracts
W WOLVERINE TRADING, LLC Institution	$567.8K 303.0 contracts
Walleye Trading LLC RIA/Wealth	$308.6K 166.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$104.1K 56.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$7.7M 4.1K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.5M 820.0 contracts
S SIG BROKERAGE, LP Institution	$557.7K 300.0 contracts
J JANE STREET GROUP, LLC Institution	$533.5K 287.0 contracts
Caption Management, LLC Hedge Fund•Long/Short	$520.5K 280.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$360.6K 194.0 contracts
W WOLVERINE TRADING, LLC Institution	$208.0K 111.0 contracts
Walleye Trading LLC RIA/Wealth	$156.2K 84.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	- - contracts

Most Committed Institutions

Institutions with SBLK as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
A ARMOR ADVISORS, L.L.C. Hedge Fund•Multi-Strategy	Eden Nanazia CFO	5.79% $6.1M	0.29% 328.4K shares	Q2 2023 Held for 2y 6m	$105.5M
P Philosophy Capital Management LLC Hedge Fund•Multi-Strategy	Jacob Daniel Rubin Managing Partner	3.12% $27.0M	1.27% 1.5M shares	Q3 2024 Held for 1y 3m	$864.0M
VALUEWORKS LLC Hedge Fund•Value	Charles Spencer Lemonides Managing Partner	1.96% $6.7M	0.32% 361.6K shares	Q4 2020 Held for 5 years	$343.6M
OAKTREE CAPITAL MANAGEMENT LP Hedge Fund•Multi-Strategy	Robert J O'Leary CEO	0.77% $36.5M	1.72% 2.0M shares	Q3 2013 Held for 12y 3m	$4.7B
Capital Advisory Group Advisory Services, LLC RIA/Wealth	Brett Allen Machtig Managing Partner	0.68% $2.2M	0.10% 118.1K shares	Q2 2025 Held for 6 months	$321.2M
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short	Mark Allen Broach Managing Partner	0.62% $1.7M	0.08% 93.8K shares	Q4 2022 Held for 3 years	$282.7M
Glenorchy Capital Ltd Hedge Fund•Global Macro	Bradley Thomas Mcfadden CIO	0.37% $515.2K	0.02% 27.7K shares	Q2 2024 Held for 1y 6m	$137.8M
Michels Family Financial, LLC RIA/Wealth	Nicholas Eugene Michels Managing Partner	0.35% $446.1K	0.02% 24.0K shares	Q4 2024 Held for 1 year	$128.4M
CFM WEALTH PARTNERS LLC RIA/Wealth	Edward Allen Moody Founder	0.30% $2.1M	0.10% 112.6K shares	Q3 2022 Held for 3y 3m	$688.8M
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	Charles Eugene Davidson Chairman	0.30% $993.6K	0.05% 53.4K shares	Q3 2025 Held for 3 months	$330.0M

Hedge Fund Spotlight

Discover hedge funds investing in SBLK

Bridgewater Associates, LP

Hedge Fund • Global Macro

Portfolio ManagerNir Bar Dea

Portfolio Value: $25.5B
Positions: 1,015
Last Reported: Q3 2025

Sector Allocation

Position in Star Bulk Carriers

Market Value: $1.5M
Shares Held: 78.5K
Portfolio Weight: 0.01%
Owned Since: 2025-Q3

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