Koert Erhardt, a director at $SBLK, bought 6,000 shares of the company on 09-15-2026 for an estimated $169,620. This trade was reported by Quiver Quantitative using data from a recent SEC filing. This increased their holdings of this class of stock by approximately 59.5%. Following this trade, they now own 16,080 shares of this class of $SBLK stock.
$SBLK Insider Trading Activity
$SBLK insiders have traded $SBLK stock on the open market 17 times in the past 6 months. Of those trades, 1 have been purchases and 16 have been sales.
Here’s a breakdown of recent trading of $SBLK stock by insiders over the last 6 months:
- RAFFAELE ZAGARI has made 0 purchases and 3 sales selling 111,500 shares for an estimated $2,619,782,000.
- NIKOLAOS RESKOS (Chief Operating Officer) has made 0 purchases and 9 sales selling 98,103 shares for an estimated $2,639,395.
- CHARIS PLAKANTONAKI (Chief Strategy Officer) has made 0 purchases and 3 sales selling 38,150 shares for an estimated $1,041,408.
- NIKOLAOS KARELLIS sold 20,000 shares for an estimated $539,200
- KOERT ERHARDT purchased 6,000 shares for an estimated $169,620
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.
$SBLK Hedge Fund Activity
We have seen 91 institutional investors add shares of $SBLK stock to their portfolio, and 115 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- ALLIANCEBERNSTEIN L.P. removed 5,832,805 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $133,979,530
- BLACKROCK, INC. added 2,216,799 shares (+369.2%) to their portfolio in Q2 2026, for an estimated $55,353,471
- VICTORY CAPITAL MANAGEMENT INC added 2,027,422 shares (+inf%) to their portfolio in Q2 2026, for an estimated $50,624,727
- OAKTREE CAPITAL MANAGEMENT LP removed 1,962,892 shares (-100.0%) from their portfolio in Q2 2026, for an estimated $49,013,413
- ENCOMPASS CAPITAL ADVISORS LLC added 962,500 shares (+inf%) to their portfolio in Q2 2026, for an estimated $24,033,625
- COOPER CREEK PARTNERS MANAGEMENT LLC removed 866,033 shares (-100.0%) from their portfolio in Q2 2026, for an estimated $21,624,844
- BOSTON PARTNERS removed 838,244 shares (-51.5%) from their portfolio in Q2 2026, for an estimated $20,930,952
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
