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Insider Cluster (9 insiders) ·Filed Sep 22, 2026

SBLK

Star Bulk Carriers Corp.
BULLISH
Impact 6/10
Horizonweeks Processed1mo ago
Insider cluster: 9 insiders, $5.8M total
Actionable Insight ▲ Bullish

The concentrated buy cluster at $28.27 by multiple C-suite and board members, including two $2.1M purchases, suggests management sees material upside. Monitor for any upcoming earnings or strategic announcements that could catalyze a re-rating.

DirectionBullish
Confidencehigh
Horizonweeks
Latest settled — T+20d
SBLK ▼ -9.21% at T+20d
LONG call ✗ call lost -9.21% · α vs SPY -8.65% · entry $30.94 → $28.09
Next anchor: T+60d in 7w
Latest observation: T+23 -11.86% FF3 residual α
Entry = T+0 close
Sep 22, 2026
via day close
T+1d
-1.75%
call -1.75% · α -1.03%
$30.40
settled 5w ago
T+5d
-5.62%
call -5.62% · α -4.44%
$29.20
settled 28d ago
T+20d
-9.21%
call -9.21% · α -8.65%
$28.09
settled 7d ago
T+60d
Pending
in 7w

Price Chart

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Executive Summary

A cluster of 9 Star Bulk insiders traded over Sep 11-18, with 8 making open-market buys totaling ~$5.5M at ~$28.27 and 1 director selling $323K at $32.34. The heavy insider buying, especially by two insiders each deploying $2.1M, signals strong conviction that the stock is undervalued near $28, while the lone sale appears routine and non-informative.

Key Financial Metrics

Direction
mixed
Total Value
$5.8M
Insiders
9

Key Facts

  • 8 insiders executed open-market buys totaling ~$5.5M at ~$28.27/share on Sep 15
  • Director Pappas Alexandros and Director Pappa Milena Maria each bought 74.4K shares ($2.1M each)
  • COO Reskos Nikolaos bought 10K shares ($283K), co-CFO Spyrou Symeon bought 15K shares ($424K)
  • Director Erhardt Koert bought 6K shares ($170K), Director Zagari Raffaele bought 10K shares ($283K)
  • Director Balakrishnan Mahesh sold 10K shares ($323K) at $32.34 on Sep 18 — a routine, non-informative sale
  • Total insider buy value of ~$5.5M represents ~1.7% of SBLK's ~$326M market cap — highly material

Financial Impact

Insider buys of ~$5.5M represent ~1.7% of market cap, a very strong signal of undervaluation

market capinsider ownership

Risk Factors

  • Dry bulk shipping rates are volatile and could deteriorate, offsetting insider conviction
  • The lone director sale at $32.34 may indicate a near-term ceiling if repeated by other insiders

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-SBLK-1790082012027
24 reports for SBLK
Performance horizon
100% Hit rate @ T+60 3 of 3 directional calls Went positive at some point 11 of 12 best @ T+60▲ +21.12%Mar 6, 2026
Filters
Rows
Reports for SBLK — sortable, filterable
TypeNow
Oct 9, 2026
17d ago
6-K
BEARISH ★ 5/10
$29.84awaiting T+60—$29.08 (+2.55%)
Oct 9, 2026
17d ago
424B5
BEARISH ★ 5/10
$29.84awaiting T+60—$29.08 (+2.55%)
Oct 9, 2026
17d ago
424B5
BEARISH ★ 5/10
$29.84awaiting T+60—$29.08 (+2.55%)
Oct 5, 2026
21d ago
144
NEUTRAL ★ 2/10
$30.84awaiting T+60—$29.08 (−5.71%)
Sep 22, 2026
4w ago
Insider Cluster
BULLISH ★ 6/10
$30.94awaiting T+60—$29.08 (−6.01%)
Sep 18, 2026
5w ago
6-K
BULLISH ★ 5/10
$32.48awaiting T+60—$29.08 (−10.47%)
Sep 17, 2026
5w ago
Insider Cluster
BULLISH ★ 4/10
$31.75awaiting T+60—$29.08 (−8.41%)
Sep 16, 2026
5w ago
6-K
NEUTRAL ★ 2/10
$30.87awaiting T+60—$29.08 (−5.80%)
Sep 16, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$30.87awaiting T+60—$29.08 (−5.80%)
Sep 16, 2026
5w ago
Insider Cluster
BULLISH ★ 4/10
$30.87awaiting T+60—$29.08 (−5.80%)
Showing 10 of 24

US Market Status

Market Closed — Opens Wed (11h 57m)

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Report published Sep 22, 2026