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SBLK · Star Bulk Carriers Corp.

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$30.50 +0.44 (+1.46%) At close · Aug 21
Market Cap
$3.41B
Shares
111.67M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 204
Total Value: $1,106,066,305
Total Shares: 44,295,812

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 204 13F filers · Δ vs Mar 31, 2026
Top Holder
8.0%
Sep 2023 → Jun 2026 · range 7.4% – 40.7%
+0.6 pts
Top 5
29.1%
Sep 2023 → Jun 2026 · range 26.0% – 65.6%
+3.1 pts
Top 10
46.9%
Sep 2023 → Jun 2026 · range 43.6% – 75.6%
+3.4 pts
HHI
311
Sep 2023 → Jun 2026 · range 285 – 1,932
Broadly held+25

Quarterly Activity

vs Mar 31, 2026
New
35
Increased
62
Decreased
67
Sold Out
23
Unchanged
40
Holder count: +12
Institutional value: +17.9%
Shares held: +8.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 216
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1386716 CUSIP Y8162K204 13F (30d) 189 filings 183 filers Visit website Investor relations