SELLAS Life Sciences Group Inc
SELLAS Life Sciences Group Inc (SLS) Unusual Options Activity Today
SLS options volume power reached 20.09x on the previous trading day. The highest reading was on the $5 PUT expiring 2026-10-23.
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Checking SLS unusual options activity helps you spot when traders are making outsized bets on SELLAS Life Sciences Group Inc before the broader market catches on. SELLAS Life Sciences Group Inc's unusual options activity flags contracts trading at multiples of their average daily volume, often signaling that informed money is positioning ahead of a catalyst. Use our scanner to monitor SLS unusual options activity today and surface the prints that deserve a second look.
Unusual options flow typically refers to trades where volume vastly exceeds open interest at a given strike, or where total contract volume on a name spikes well above its norm. Watching SLS unusual options flow today can reveal large block trades, sweeps across exchanges, and aggressive directional bets. Tracking SLS unusual options volume across calls and puts helps you separate hedging activity from genuinely speculative positioning, and SLS unusual options flow data becomes especially valuable around earnings, product launches, and macro events.
SELLAS Life Sciences Group, Inc., a late-stage biopharmaceutical company, focuses on the development of novel cancer immunotherapies for various cancer indications in the United States. Its lead product candidate is galinpepimut-S (GPS), a cancer immunotherapeutic agent that targets Wilms tumor 1, which is in Phase III clinical trials for the treatment of acute myeloid leukemia; and in Phase 1/2 clinical trials for the treatment for ovarian cancer. The company also develops nelipepimut-S, a cancer immunotherapy that targets human epidermal growth factor receptor 2, which is in Phase 2b clinical trials for the treatment of early-stage breast cancer.
It has a strategic collaboration with Merck & Co., Inc. to evaluate GPS as it is administered in combination with PD1 blocker pembrolizumab in a Phase 1/2 clinical trial enrolling patients in up to five cancer indications, including hematologic malignancies and solid tumors. The company was founded in 2012 and is headquartered in New York, New York.
Catalysts rarely arrive without a footprint, and SLS unusual options activity is often where that footprint shows up first. Our scanner tracks SELLAS Life Sciences Group Inc's unusual options flow in real time, ranks prints by volume-to-open-interest, premium spent, and aggressor side, and separates real conviction from noise. Whether you're looking at SLS unusual options volume on the call side or chasing put sweeps, SELLAS Life Sciences Group Inc's unusual options flow today is one click away, so put it on your radar before the headlines hit.
| 10.50 | 0.65 | 1.50 | 1.08 | 10% | 23 | 14 | 164.29% |
| 14.50 | — | 0.35 | 0.35 | 255% | 226 | 195 | 115.90% |
| 3.00 | 7.90 | 9.10 | 8.50 | 145% | 166 | 156 | 106.41% |
| 6.00 | 4.90 | 6.10 | 5.50 | 83% | 78 | 76 | 102.63% |
| 11.50 | 0.55 | 0.70 | 0.63 | 124% | 520 | 669 | 77.73% |
| 9.50 | — | 0.30 | 0.30 | 243% | 165 | 82 | 201.22% |
| 11.00 | 0.25 | 0.35 | 0.30 | 121% | 517 | 407 | 127.03% |
| 20.00 | 7.50 | 9.40 | 8.45 | 285% | 1 | 1 | 100.00% |
| 12.00 | 0.75 | 1.50 | 1.13 | 192% | 108 | 189 | 57.14% |
| 10.50 | 0.10 | 0.20 | 0.15 | 119% | 248 | 610 | 40.66% |
As of September 28, 2026
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