SBLK Star Bulk Carriers Corp.

NASDAQ
$32.48

Star Bulk Carriers Corp. (SBLK) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal Bullish Insiders bought more than they sold over this window — uncommon at any size.
Cluster activity 8 buyers in the last 30 days 8 buyers in the last 90 days 3 sellers in the last 90 days
Insiders buying
8
9 transactions
Insiders selling
3
5 transactions
Purchases
$6.9M
244,800 shares
Sales
$2.5M
81,650 shares
Net activity
$4.4M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $2.5M 5 transactions · 81,650 shares

Largest single sale: $1.6M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: September 15, 2026 , by Erhardt Koert .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Pappas Alexandros Other Buy 74,400 $28.27 $2.1M 2,532,150
Pappa Milena Maria Director Buy 74,400 $28.27 $2.1M 3,167,074
Zagari Raffaele 2 fills Director Buy 60,000 $28.27 $1.7M 1,953,000
Spyrou Symeon co CFO Buy 15,000 $28.27 $424.1K 241,200
Reskos Nikolaos Chief Operating Officer Buy 10,000 $28.27 $282.7K 410,875
Erhardt Koert Director Buy 6,000 $28.27 $169.6K 16,080
Plakantonaki Charis Chief Strategy Officer Buy 3,000 $28.27 $84.8K 58,778
Karellis Nikolaos Director Buy 2,000 $28.27 $56.5K 9,580
Zagari Raffaele Director Sell 50,000 $31.20 $1.6M 1,903,000 −2.6% of holding
Plakantonaki Charis Chief Strategy Officer Sell 10,825 $29.82 $322.8K 55,778 −16.3% of holding
Plakantonaki Charis Chief Strategy Officer Sell 10,825 $28.95 $313.4K 66,603 −14% of holding
Reskos Nikolaos Chief Operating Officer Sell 5,000 $29.50 $147.5K 400,875 −1.2% of holding
Reskos Nikolaos Chief Operating Officer Sell 5,000 $28.99 $145.0K 405,875 −1.2% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.