SELLAS Life Sciences Group, Inc. (SLS) Insider Ownership

Historic Insider Ownership Trends

SELLAS Life Sciences's top three insider shareholders as of May 04, 2026 are Angelos M. Stergiou (President And Ceo, 686.97K shares), Dragan Cicic (Svp, Chief Development Officer, 557.80K shares), John Thomas Burns (Cfo, 554.33K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Angelos M. Stergiou President And Ceo 686,966 0 05 Dec, 2025
Dragan Cicic Svp, Chief Development Officer 557,805 0 09 Jan, 2026
John Thomas Burns Cfo 554,327 0 09 Jan, 2026
Angelos M. Stergiou President And Ceo 217,421 0 08 Dec, 2023
Katherine Bach Kalin - 154,400 0 09 Jan, 2026
Barbara A Wood Evp, Gen. Counsel, Corp. Sec. 117,225 0 24 Jan, 2024
Jane Wasman - 92,900 0 09 Jan, 2026
Barbara A Wood Evp, Gen. Counsel, Corp. Sec. 82,225 0 08 Dec, 2023
David A Scheinberg - 73,082 0 09 Jan, 2026
John Thomas Burns Cfo 54,927 0 08 Dec, 2023
Robert Francomano Chief Commercial Officer 40,918 0 24 Jan, 2024
Robert Francomano Chief Commercial Officer 20,918 0 08 Dec, 2023

* 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
07 Jan, 2026 David A Scheinberg Common Stock A 50,000 $0.00 73,082 D A
07 Jan, 2026 Katherine Bach Kalin Common Stock A 50,000 $0.00 154,400 D A
07 Jan, 2026 John Thomas Burns Common Stock A 300,000 $0.00 554,327 D A
07 Jan, 2026 Dragan Cicic Common Stock A 300,000 $0.00 557,805 D A
07 Jan, 2026 Jane Wasman Common Stock A 50,000 $0.00 92,900 D A
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
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 Jane Wasman Common Stock A 12,500 $0.00 22,900 D A
10 Jan, 2025 Katherine Bach Kalin Common Stock A 12,500 $0.00 21,000 D A
10 Jan, 2025 John Thomas Burns Common Stock A 113,000 $0.00 217,762 D A
10 Jan, 2025 Angelos M. Stergiou Common Stock A 257,000 $0.00 615,132 D A
10 Jan, 2025 Dragan Cicic Common Stock A 113,000 $0.00 228,328 D A
10 Jan, 2025 David A Scheinberg Common Stock A 12,500 $0.00 23,082 D A
10 Jan, 2025 David A Scheinberg Stock Option (Right to Buy) A 18,500 $0.00 18,500 D A
10 Jan, 2025 Jane Wasman Stock Option (Right to Buy) A 18,500 $0.00 18,500 D A
10 Jan, 2025 Dragan Cicic Common Stock A 81,300 $0.00 309,628 D A