We are live on ! Find out more
SBLK icon

Star Bulk Carriers

188 hedge funds and large institutions have $566M invested in Star Bulk Carriers in 2025 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 75 increasing their positions, 43 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

74% more repeat investments, than reductions

Existing positions increased: 75 | Existing positions reduced: 43

15% more call options, than puts

Call options by funds: $22.9M | Put options by funds: $19.9M

0% more funds holding in top 10

Funds holding in top 10: 33 (0)

1% less capital invested

Capital invested by funds: $571M → $566M (-$5.08M)

0.93% less ownership

Funds ownership: 32.14%31.21% (-0.93%)

15% less funds holding

Funds holding: 220188 (-32)

46% less first-time investments, than exits

New positions opened: 33 | Existing positions closed: 61

Holders
188
Holders Change
-32
Holders Change %
-14.55%
% of All Funds
2.52%
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
33
Increased
75
Reduced
43
Closed
61
Calls
$22.9M
Puts
$19.9M
Net Calls
+$3.02M
Net Calls Change
+$10.4M
Name Holding Trade Value Shares
Change
Change in
Stake
OCM
1
Oaktree Capital Management
California
$83.6M
UBS Group
2
UBS Group
Switzerland
$44.4M +$37.1M +2,381,307 +503%
Renaissance Technologies
3
Renaissance Technologies
New York
$29.4M +$2.06M +132,300 +8%
Amundi
4
Amundi
France
$26.5M +$10.8M +693,683 +59%
Arrowstreet Capital
5
Arrowstreet Capital
Massachusetts
$25.6M -$17.9M -1,147,437 -41%
Ameriprise
6
Ameriprise
Minnesota
$23.7M +$23.4M +1,501,188 +7,873%
PCM
7
Philosophy Capital Management
California
$23.6M +$2.18M +139,930 +10%
BlackRock
8
BlackRock
New York
$21.6M +$11.6M +744,039 +116%
Bank of America
9
Bank of America
North Carolina
$20.3M +$17.2M +1,104,136 +548%
UBS AM
10
UBS AM
Illinois
$20.2M +$7.57M +485,436 +60%
Two Sigma Advisers
11
Two Sigma Advisers
New York
$16.5M -$12.4M -796,400 -43%
Focus Partners Wealth
12
Focus Partners Wealth
Massachusetts
$14.6M +$5.25M +336,873 +56%
DnB Asset Management
13
DnB Asset Management
Norway
$12.4M -$1.51M -96,659 -11%
GAAM
14
Grand Alliance Asset Management
Hong Kong
$12.1M +$624K +40,000 +5%
Morgan Stanley
15
Morgan Stanley
New York
$11.8M -$6.63M -425,388 -36%
Mirae Asset Global ETFs Holdings
16
Mirae Asset Global ETFs Holdings
Hong Kong
$10.7M +$10.8M +689,818 New
Balyasny Asset Management
17
Balyasny Asset Management
Illinois
$9.29M +$9.31M +596,732 New
RAM
18
Ramirez Asset Management
New York
$7.82M +$1.22M +78,241 +18%
Susquehanna International Group
19
Susquehanna International Group
Pennsylvania
$7.19M -$3.2M -204,926 -31%
Vanguard Group
20
Vanguard Group
Pennsylvania
$6.95M -$1.11M -71,481 -14%
GHAM
21
Gilman Hill Asset Management
Connecticut
$6.07M +$1.11M +71,195 +22%
Franklin Resources
22
Franklin Resources
California
$6.06M +$5.26M +337,063 +642%
V
23
ValueWorks
New York
$5.67M +$352K +22,545 +7%
AA
24
Armor Advisors
New York
$5.2M -$494K -31,694 -9%
Allianz Asset Management
25
Allianz Asset Management
Germany
$4.89M +$403K +25,838 +9%

SBLK Hedge Fund Activity: Q1 2025 in Review

188 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Star Bulk Carriers (SBLK) for Q1 2025, worth a combined $566M — down 0.89% from $571M a quarter earlier.

Sellers outnumbered buyers: 61 funds closed out of SBLK and 33 opened new positions — a net loss of 28 holders — while 43 trimmed existing stakes and 75 added.

The largest buyer was UBS Group, adding an estimated $37.1M. The largest seller was Encompass Capital Advisors, exiting entirely with an estimated $18.5M sold.

  • 188 institutional investors held Star Bulk Carriers (SBLK) as of Q1 2025, down from 220 in Q4 2024.
  • Funds reported $566M of Star Bulk Carriers stock for Q1 2025, down 0.89% quarter-over-quarter.
  • 33 funds opened new Star Bulk Carriers positions in Q1 2025 and 61 closed out, a net change of -28 holders.
  • The largest Star Bulk Carriers buyer in Q1 2025 was UBS Group, an estimated $37.1M added.
  • The largest Star Bulk Carriers seller in Q1 2025 was Encompass Capital Advisors, an estimated $18.5M sold.

Based on aggregated 13F filings for Q1 2025.