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SLS

Sellas Life Sciences Group Inc

NASDAQ: SLS · HEALTHCARE · BIOTECHNOLOGY

$10.16
-2.17% today

Updated 2026-10-29

Market cap
$2.29B
P/E ratio
—
P/S ratio
26.90x
EPS (TTM)
$-0.21
Dividend yield
—
52W range
$1 – $16
Volume
6.9M
OverviewPrice TargetsFinancialsValuationInsidersEarnings

Sellas Life Sciences Group Inc (SLS) Insider transactions

Net insider activity
Net buying (4,194,655 shares)
Buy transactions
84
Sell transactions
16

All transactions

DateInsiderTitleTypeSharesPriceValue
2026-01-07WASMAN, JANEDirectorBuy50,000——
2026-01-07VARIAN, JOHNDirectorBuy50,000——
2026-01-07VAN, NOSTRAND ROBERT LDirectorBuy50,000——
2026-01-07SCHEINBERG, DAVID ADirectorBuy50,000——
2026-01-07KALIN, KATHERINE BACHDirectorBuy50,000——
2026-01-07CICIC, DRAGANSVP, Chief Development OfficerBuy300,000——
2026-01-07BURNS, JOHN THOMASCFOBuy300,000——
2025-12-03STERGIOU, ANGELOS M.Director, President and CEOSale187,066$1.50$280599.00
2025-12-03CICIC, DRAGANSVP, Chief Development OfficerSale63,800$1.50$95700.00
2025-12-03BURNS, JOHN THOMASCFOSale58,592$1.50$87888.00
2025-11-19KALIN, KATHERINE BACHDirectorBuy63,400$1.59$100806.00
2025-06-12VAN, NOSTRAND ROBERT LDirectorBuy10,000$1.48$14800.00
2025-05-30WASMAN, JANEDirectorBuy20,000$1.69$33800.00
2025-05-22KALIN, KATHERINE BACHDirectorBuy20,000$1.80$36000.00
2025-01-10WASMAN, JANEDirectorBuy18,500——
2025-01-10WASMAN, JANEDirectorBuy12,500——
2025-01-10VARIAN, JOHNDirectorBuy18,500——
2025-01-10VARIAN, JOHNDirectorBuy12,500——
2025-01-10VAN, NOSTRAND ROBERT LDirectorBuy18,500——
2025-01-10VAN, NOSTRAND ROBERT LDirectorBuy12,500——
2025-01-10STERGIOU, ANGELOS M.Director, President and CEOBuy385,750——
2025-01-10STERGIOU, ANGELOS M.Director, President and CEOBuy257,000——
2025-01-10STERGIOU, ANGELOS M.Director, President and CEOBuy243,900——
2025-01-10SCHEINBERG, DAVID ADirectorBuy18,500——
2025-01-10SCHEINBERG, DAVID ADirectorBuy12,500——
2025-01-10KALIN, KATHERINE BACHDirectorBuy18,500——
2025-01-10KALIN, KATHERINE BACHDirectorBuy12,500——
2025-01-10CICIC, DRAGANSVP, Chief Development OfficerBuy169,500——
2025-01-10CICIC, DRAGANSVP, Chief Development OfficerBuy113,000——
2025-01-10CICIC, DRAGANSVP, Chief Development OfficerBuy81,300——
2025-01-10BURNS, JOHN THOMASCFOBuy169,500——
2025-01-10BURNS, JOHN THOMASCFOBuy113,000——
2025-01-10BURNS, JOHN THOMASCFOBuy81,300——
2024-12-04STERGIOU, ANGELOS M.Director, President and CEOSale28,289$1.13$31966.57
2024-12-04CICIC, DRAGANSVP, Chief Development OfficerSale8,256$1.13$9329.28
2024-12-04BURNS, JOHN THOMASCFOSale7,165$1.13$8096.45
2024-01-22WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy50,000——
2024-01-22WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy35,000——
2024-01-22WASMAN, JANEDirectorBuy10,000——
2024-01-22WASMAN, JANEDirectorBuy6,000——
2024-01-22VARIAN, JOHNDirectorBuy10,000——
2024-01-22VARIAN, JOHNDirectorBuy6,000——
2024-01-22VAN, NOSTRAND ROBERT LDirectorBuy10,000——
2024-01-22VAN, NOSTRAND ROBERT LDirectorBuy6,000——
2024-01-22STERGIOU, ANGELOS M.Director, President and CEOBuy238,500——
2024-01-22STERGIOU, ANGELOS M.Director, President and CEOBuy159,000——
2024-01-22SCHEINBERG, DAVID ADirectorBuy10,000——
2024-01-22SCHEINBERG, DAVID ADirectorBuy6,000——
2024-01-22KALIN, KATHERINE BACHDirectorBuy10,000——
2024-01-22KALIN, KATHERINE BACHDirectorBuy6,000——
2024-01-22FRANCOMANO, ROBERTChief Commercial OfficerBuy30,000——
2024-01-22FRANCOMANO, ROBERTChief Commercial OfficerBuy20,000——
2024-01-22BURNS, JOHN THOMASCFOBuy75,000——
2024-01-22BURNS, JOHN THOMASCFOBuy47,000——
2023-12-06WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Sale4,119$1.08$4448.52
2023-12-06STERGIOU, ANGELOS M.Director, President and CEOSale12,268$1.08$13249.44
2023-12-06FRANCOMANO, ROBERTChief Commercial OfficerSale1,082$1.08$1168.56
2023-12-06BURNS, JOHN THOMASCFOSale2,929$1.08$3163.32
2023-02-02WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy80,000——
2023-02-02WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy20,000——
2023-02-02WASMAN, JANEDirectorBuy9,500——
2023-02-02WASMAN, JANEDirectorBuy2,500——
2023-02-02VARIAN, JOHNDirectorBuy9,500——
2023-02-02VARIAN, JOHNDirectorBuy2,500——
2023-02-02VAN, NOSTRAND ROBERT LDirectorBuy9,500——
2023-02-02VAN, NOSTRAND ROBERT LDirectorBuy2,500——
2023-02-02STERGIOU, ANGELOS M.Director, President and CEOBuy217,500——
2023-02-02STERGIOU, ANGELOS M.Director, President and CEOBuy58,000——
2023-02-02SCHEINBERG, DAVID ADirectorBuy9,500——
2023-02-02SCHEINBERG, DAVID ADirectorBuy2,500——
2023-02-02KALIN, KATHERINE BACHDirectorBuy9,500——
2023-02-02KALIN, KATHERINE BACHDirectorBuy2,500——
2023-02-02FRANCOMANO, ROBERTChief Commercial OfficerBuy45,000——
2023-02-02FRANCOMANO, ROBERTChief Commercial OfficerBuy12,000——
2023-02-02BURNS, JOHN THOMASCFOBuy75,000——
2023-02-02BURNS, JOHN THOMASCFOBuy20,000——
2022-12-05WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Sale2,153$2.59$5576.27
2022-12-05STERGIOU, ANGELOS M.Director, President and CEOSale6,494$2.61$16938.30
2022-12-05BURNS, JOHN THOMASSenior VP, Finance & CAOSale1,159$2.59$3001.81
2022-08-13KALIN, KATHERINE BACHDirectorBuy19,000——
2022-03-14FRANCOMANO, ROBERTChief Commercial OfficerBuy100,000——
2022-01-31WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy48,750——
2022-01-31WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy13,000——
2022-01-31WASMAN, JANEDirectorBuy7,125——
2022-01-31WASMAN, JANEDirectorBuy1,900——
2022-01-31VARIAN, JOHNDirectorBuy7,125——
2022-01-31VARIAN, JOHNDirectorBuy1,900——
2022-01-31VAN, NOSTRAND ROBERT LDirectorBuy7,125——
2022-01-31VAN, NOSTRAND ROBERT LDirectorBuy1,900——
2022-01-31STERGIOU, ANGELOS M.Director, President and CEOBuy165,000——
2022-01-31STERGIOU, ANGELOS M.Director, President and CEOBuy44,000——
2022-01-31SCHEINBERG, DAVID ADirectorBuy7,125——
2022-01-31SCHEINBERG, DAVID ADirectorBuy1,900——
2022-01-31BURNS, JOHN THOMASSenior VP, Finance & CAOBuy36,000——
2022-01-31BURNS, JOHN THOMASSenior VP, Finance & CAOBuy9,600——
2021-12-02WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Sale847$6.25$5297.73
2021-12-02STERGIOU, ANGELOS M.Director, President and CEOSale2,120$6.25$13251.91
2021-12-02BURNS, JOHN THOMASVP, Finance & Corp ControllerSale231$6.27$1447.75
2021-03-04WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy47,250——
2021-03-04WOOD, BARBARA AEVP, Gen. Counsel, Corp. Sec.Buy7,875——

Frequently asked questions

Are SLS insiders buying or selling?

Over the transactions on record, SLS insiders have been net buyers, with about $581122.91 in stock sold across 16 sales, against 4 open-market purchases.

Does insider selling at SLS mean the stock will fall?

Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.

Which SLS insiders are selling the most?

Recent selling is concentrated in a few names. STERGIOU, ANGELOS M. accounts for the largest share on record, with about $356005.22 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.