| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $100,806 | 1 | 100 |
Sells | $0 | 0 | 0 |
| Kalin Katherine Bach | director | 1 | $100,806 | 0 | $0 | $100,806 |
SELLAS Life Sciences Group, Inc., a late-stage clinical biopharmaceutical company, focuses on the development of novel therapeutics for various cancer indications in the United States. The company's lead product candidate is galinpepimut-S (GPS), a peptide immunotherapy directed against the Wilms tumor 1, antigen; and SLS009 (tambiciclib), a selective small molecule cyclin-dependent kinase 9, or CDK9, inhibitor. It has a strategic collaboration with Merck & Co., Inc. to evaluate GPS as it is administered in combination with PD1 blocker …
Over the last 12 months, insiders at SELLAS Life Sciences Group, Inc. have bought $100,806 and sold $0 worth of SELLAS Life Sciences Group, Inc. stock.
On average, over the past 5 years, insiders at SELLAS Life Sciences Group, Inc. have bought $92,703 and sold $22,757 worth of stock each year.
Highest buying activity among insiders over the last 12 months: Kalin Katherine Bach (director) — $100,806.
The last purchase of 63,400 shares for transaction amount of $100,806 was made by Kalin Katherine Bach (director) on 2025‑11‑19.
| 2025-11-19 | Kalin Katherine Bach | director | 63,400 0.0629% | $1.59 | $100,806 | +365.79% | ||
| 2025-06-12 | VAN NOSTRAND ROBERT L | director | 10,000 0.009% | $1.48 | $14,800 | +31.52% | ||
| 2025-05-30 | Wasman Jane | director | 20,000 0.0198% | $1.69 | $33,800 | +19.01% | ||
| 2025-05-22 | Kalin Katherine Bach | director | 20,000 0.0205% | $1.80 | $36,000 | +13.64% | ||
| 2022-12-05 | Sale | Stergiou Angelos M. | President and CEO | 6,494 0.0347% | $2.61 | $16,938 | -37.30% | |
| 2022-12-05 | Sale | WOOD BARBARA A | EVP, Gen. Counsel, Corp. Sec. | 2,153 0.0114% | $2.59 | $5,576 | -37.30% | |
| 2022-12-05 | Sale | Burns John Thomas | Senior VP, Finance & CAO | 1,159 0.0061% | $2.59 | $3,002 | -37.30% | |
| 2021-12-02 | Sale | Stergiou Angelos M. | President and CEO | 2,120 0.0133% | $6.25 | $13,252 | -51.09% | |
| 2021-12-02 | Sale | WOOD BARBARA A | EVP, Gen. Counsel, Corp. Sec. | 847 0.0053% | $6.25 | $5,298 | -51.09% | |
| 2021-12-02 | Sale | Burns John Thomas | VP, Finance & Corp Controller | 231 0.0014% | $6.27 | $1,448 | -51.09% | |
| 2018-12-31 | Sale | Stergiou Angelos M. | President and CEO | 23,277 0.1061% | $1.25 | $29,189 | -86.59% | |
| 2017-06-20 | Sale | Nisi Rudolph | director | 500 0.0013% | $0.55 | $273 | -50.00% | |
| 2017-02-08 | Sale | Hudson Bay Capital Management LP | 10 percent owner | 2.36M 9.0582% | $0.84 | $1.99M | -50.00% | |
| 2014-02-12 | Sale | Chin Richard | director | 187,500 0.1611% | $4.33 | $812,438 | -48.39% | |
| 2014-02-07 | Nisi Rudolph | director | 20,000 0.0172% | $4.94 | $98,742 | -53.96% | ||
| 2014-02-03 | Sale | GALLIKER STEPHEN S | director | 300,000 0.2555% | $4.18 | $1.25M | -45.97% | |
| 2014-01-30 | Sale | SCHWARTZ MARK W. | EVP & Chief Operating Officer | 100,000 0.0885% | $5.57 | $556,500 | -57.67% | |
| 2014-01-30 | Sale | Hillsberg Sanford | director | 250,000 0.2151% | $5.41 | $1.35M | -57.67% | |
| 2014-01-30 | Sale | Chin Richard | director | 75,000 0.0666% | $5.58 | $418,755 | -57.67% | |
| 2014-01-29 | Sale | Nisi Rudolph | director | 250,000 0.2151% | $5.28 | $1.32M | -56.63% |
| Kalin Katherine Bach | director | 104400 0.0517% | $926,028.00 | 2 | 0 | +13.64% |
| Wasman Jane | director | 30400 0.0151% | $269,648.00 | 1 | 0 | +19.01% |
| VAN NOSTRAND ROBERT L | director | 20400 0.0101% | $180,948.00 | 1 | 0 | +31.52% |
| Ahn Mark J | President & CEO | 20000 0.0099% | $177,400.00 | 2 | 0 | |
| Beerman Noah D | CEO and President | 15407 0.0076% | $136,660.09 | 1 | 0 | |
| Nisi Rudolph | director | 14864 0.0074% | $131,843.68 | 1 | 3 | |
| Lee Kwang | Principal Accounting Officer | 5000 0.0025% | $44,350.00 | 1 | 0 |
$8,217,280 | 112 | 46.33% | $1.6B | |
$607,395,062 | 99 | 4.23% | $1.88B | |
$47,419,530 | 58 | 17.20% | $1.96B | |
$61,893,001 | 38 | 19.63% | $1.89B | |
$678,065,999 | 37 | -13.32% | $1.97B |
| Increased Positions | 79 | +108.22% | 11M | +33.82% |
| Decreased Positions | 29 | -39.73% | 9M | -27.2% |
| New Positions | 29 | New | 2M | New |
| Sold Out Positions | 12 | Sold Out | 7M | Sold Out |
| Total Postitions | 123 | +68.49% | 35M | +6.62% |
| Vanguard Group Inc | $29,754.00 | 4.82% | 6.84M | +185,106 | +2.78% | 2025-09-30 |
| Anson Funds Management Lp | $26,243.00 | 4.25% | 6.03M | +6M | +2,093.8% | 2025-09-30 |
| Blackrock, Inc. | $24,738.00 | 4.01% | 5.69M | +1M | +23.89% | 2025-09-30 |
| Marshall Wace, Llp | $10,257.00 | 1.66% | 2.36M | -357,490 | -13.16% | 2025-09-30 |
| Geode Capital Management, Llc | $9,850.00 | 1.6% | 2.26M | +63,956 | +2.91% | 2025-09-30 |
| State Street Corp | $5,920.00 | 0.96% | 1.36M | +248,209 | +22.31% | 2025-09-30 |
| Morgan Stanley | $4,588.00 | 0.74% | 1.05M | -29,687 | -2.74% | 2025-09-30 |
| Nuveen, Llc | $4,341.00 | 0.7% | 997,910 | +26,581 | +2.74% | 2025-09-30 |
| Susquehanna International Group, Llp | $3,757.00 | 0.61% | 863,575 | -626,097 | -42.03% | 2025-09-30 |
| Northern Trust Corp | $3,181.00 | 0.52% | 731,175 | +32,682 | +4.68% | 2025-09-30 |