Over the trailing 12 months, GSL insiders sold $5.08 million worth of shares (117.86K shares) in open-market trades, with no open-market purchases.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Anastasios Psaropoulos | Chief Financial Officer | 68,698 | 0 | 68,698 | 71.3% | 28 Aug, 2026 |
| 2 | Thomas Arthur Lister | Chief Executive Officer | 15,934 | 0 | 15,934 | 16.5% | 28 Aug, 2026 |
| 3 | Ulrike Helfer | Director | 8,503 | 0 | 8,503 | 8.8% | 02 Oct, 2026 |
| 4 | Yoram Neugeborn | Director | 3,174 | 0 | 3,174 | 3.3% | 31 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 13 Oct, 2026 | Georgios Giannopoulos | Chief Compliance Officer | Disposed S | 7,692 | $45.08 | $346.73K | 0 | Direct |
| 30 Sep, 2026 | Ulrike Helfer | Director | Disposed S | 4,000 | $44.82 | $179.27K | 8,503 | Direct |
| 26 Aug, 2026 | Thomas Arthur Lister | Chief Executive Officer | Disposed S | 30,000 | $44.26 | $1.33Mn | 15,934 | Direct |
| 26 Aug, 2026 | Anastasios Psaropoulos | Chief Financial Officer | Disposed S | 1,670 | $45.03 | $75.20K | 117,028 | Direct |
| 27 Aug, 2026 | Anastasios Psaropoulos | Chief Financial Officer | Disposed S | 48,330 | $45.02 | $2.18Mn | 68,698 | Direct |
| 14 Jul, 2026 | Yoram Neugeborn | Director | Disposed S | 3,000 | $41.13 | $123.38K | 3,174 | Direct |
| 07 Apr, 2026 | Georgios Giannopoulos | Chief Compliance Officer | Disposed S | 7,692 | $38.51 | $296.23K | 0 | Direct |
| 25 Mar, 2026 | Anastasios Psaropoulos | Chief Financial Officer | Disposed S | 23,173 | $39.00 | $903.84K | 108,102 | Direct |
| 26 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 600 | $15.52 | $9.31K | 115,567 | Direct |
| 29 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 10,500 | $14.88 | $156.24K | 114,255 | Direct |
| 29 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 500 | $14.96 | $7.48K | 114,192 | Direct |
| 15 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 2,999 | $16.40 | $49.18K | 115,642 | Direct |
| 15 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 1 | $16.48 | $16 | 115,642 | Direct |
| 08 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 4,700 | $17.60 | $82.72K | 116,017 | Direct |
| 08 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 49,900 | $0.96 | $47.90K | 516,840 | Direct |
| 08 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 100 | $1.04 | $104 | 516,827 | Direct |
| 04 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 2,700 | $17.60 | $47.52K | 120,174 | Direct |
| 04 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 300 | $17.68 | $5.30K | 120,136 | Direct |
| 04 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 6,750 | $17.84 | $120.42K | 119,293 | Direct |
| 04 Jun, 2009 | Core Strategies (Us) Llc Integrated | TenPercentOwner | Disposed S | 300 | $17.92 | $5.38K | 119,255 | Direct |