Shares of MoonLake Immunotherapeutics (MLTX) got a shot of adrenaline in Monday's premarket session. The reason? The biotech company announced positive results from a mid-stage clinical trial for its drug sonelokimab, which is being tested to treat a form of chronic inflammatory back pain.
The condition, called axial spondyloarthritis, is an immune-mediated disease that primarily attacks the spine and sacroiliac joints. For patients, that often translates to persistent back pain, stiffness, and in severe cases, spinal fusion. It's a tough condition to live with, and new treatments are always welcome.
In the Phase 2 trial, dubbed S-OLARIS, sonelokimab showed it could make a meaningful difference. A solid 81% of patients treated with the drug achieved a clinically meaningful response by week 12. The data also suggested the drug works quickly to reduce inflammation and the activity of bone-forming cells in the affected joints. As a biomarker-controlled study, it provided concrete evidence that sonelokimab lowered key inflammatory markers in patients' blood and tissue samples. On the safety front, things looked familiar—the profile was consistent with earlier studies, with no new red flags popping up.
Now, developing drugs is expensive, but MoonLake seems to have its finances in order for the long haul. The company ended the last quarter with $394 million in cash, cash equivalents, and short-term securities. That pile of money, combined with the proceeds from a recent equity raise, is expected to fund operations into the second half of 2027. The company also tweaked its debt facility with Hercules Capital, drawing down $25 million and leaving a hefty $400 million in non-dilutive funding available for future needs. In biotech, a long runway is a beautiful thing.
It's worth noting that sonelokimab isn't a one-trick pony. Back in January, MoonLake received feedback from the U.S. Food and Drug Administration regarding its development strategy for the same drug in treating Hidradenitis Suppurativa, a chronic skin condition. That's based on a formal meeting the company requested with the regulator.
So, the science and the finances look promising. The stock market's reaction, however, tells a more complicated story. The shares were up about 9.7% to $20.59 in premarket trading on the news. But zoom out, and the picture is less rosy. The stock is still trading 9.8% below its 20-day simple moving average and 4.1% below its 100-day average, which hints at some lingering short-term weakness. Over the past 12 months, the shares have taken a significant dive and are currently much closer to their 52-week lows than their highs. The Relative Strength Index (RSI) sits at a neutral 44.45, and the MACD indicator wasn't available for analysis, suggesting traders might want to be cautious as the stock finds its footing.
From a technical perspective, traders are watching key resistance at $20.00 and support at $15.00.
What do the professionals think? The analyst consensus rating is a Buy, with an average price target sitting all the way up at $40.00. But recent individual actions show there's not exactly a uniform chorus of optimism:
- RBC Capital: Sector Perform (Raises Target to $12.00) – Feb. 20
- BTIG: Buy (Maintains Target at $24.00) – Feb. 9
- HC Wainwright & Co.: Buy (Maintains Target at $32.00) – Feb. 3
So, you've got one firm with a very cautious price target, and others that are significantly more bullish. It's a classic biotech story: promising data meets a skeptical market, with analysts trying to figure out exactly what it's all worth. For MoonLake, the path forward involves turning this positive Phase 2 data into a successful late-stage program and, eventually, a marketable drug. Investors betting on that outcome are hoping today's premarket pop is the start of a longer-term recovery.












