According to recent filings covering the 90 days ending December 12, 2025, the three most significant insider holders at SELLAS Life Sciences Group are President And CEO Angelos M. Stergiou (686.97K shares), SVP And Chief Development Officer Dragan Cicic (257.81K shares), Cfo John Thomas Burns (254.33K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Angelos M. Stergiou | President And CEO | 686,966 | 05 Dec, 2025 |
| Dragan Cicic | SVP And Chief Development Officer | 257,805 | 05 Dec, 2025 |
| John Thomas Burns | Cfo | 254,327 | 05 Dec, 2025 |
| Barbara A Wood | EVP And Gen. Counsel And Corp. Sec. | 117,225 | 25 Jan, 2024 |
| Katherine Bach Kalin | 104,400 | 21 Nov, 2025 | |
| Robert Francomano | Chief Commercial Officer | 40,918 | 25 Jan, 2024 |
| Jane Wasman | 30,400 | 02 Jun, 2025 | |
| David A Scheinberg | 23,082 | 14 Jan, 2025 | |
| John Varian | 22,900 | 14 Jan, 2025 | |
| Nostrand Robert L Van | 20,400 | 13 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Dec, 2025 | Angelos M. Stergiou | Common Stock | D | 187,066 | $1.50 | 686,966 | D | J |
| 03 Dec, 2025 | John Thomas Burns | Common Stock | D | 58,592 | $1.50 | 254,327 | D | J |
| 03 Dec, 2025 | Dragan Cicic | Common Stock | D | 63,800 | $1.50 | 257,805 | D | J |
| 19 Nov, 2025 | Katherine Bach Kalin | Common Stock | A | 63,400 | $1.59 | 104,400 | D | P |
| 12 Jun, 2025 | Nostrand Robert L Van | Common Stock | A | 10,000 | $1.48 | 20,400 | D | P |
| 12 Jun, 2025 | Nostrand Robert L Van | - | - | 20,400 | D | |||
| 30 May, 2025 | Jane Wasman | - | - | 30,400 | D | |||
| 30 May, 2025 | Jane Wasman | Common Stock | A | 20,000 | $1.69 | 30,400 | D | P |
| 22 May, 2025 | Katherine Bach Kalin | Common Stock | A | 20,000 | $1.80 | 41,000 | D | P |
| 10 Jan, 2025 | Nostrand Robert L Van | Common Stock | A | 12,500 | $0.00 | 22,900 | D | A |
| 10 Jan, 2025 | David A Scheinberg | - | - | 23,082 | D | |||
| 10 Jan, 2025 | Jane Wasman | Common Stock | A | 12,500 | $0.00 | 22,900 | D | A |
| 10 Jan, 2025 | John Varian | Common Stock | A | 12,500 | $0.00 | 22,900 | D | A |
| 10 Jan, 2025 | Dragan Cicic | Common Stock | A | 113,000 | $0.00 | 228,328 | D | A |
| 10 Jan, 2025 | John Thomas Burns | Common Stock | A | 113,000 | $0.00 | 217,762 | D | A |
| 10 Jan, 2025 | Katherine Bach Kalin | Common Stock | A | 12,500 | $0.00 | 21,000 | D | A |
| 10 Jan, 2025 | David A Scheinberg | Common Stock | A | 12,500 | $0.00 | 23,082 | D | A |
| 10 Jan, 2025 | Angelos M. Stergiou | Common Stock | A | 257,000 | $0.00 | 615,132 | D | A |
| 10 Jan, 2025 | Angelos M. Stergiou | - | - | 859,032 | D | |||
| 10 Jan, 2025 | Angelos M. Stergiou | Common Stock | A | 243,900 | $0.00 | 859,032 | D | A |