Major Biotech Player Quietly Ramps Up Its Stake in Merus

New insider activity at Merus ( (MRUS) ) has taken place on December 22, 2025.Claim 70% Off TipRanks This Holiday SeasonUnlock hedge-fund level data and powerful investing tools for smarter, sharper decisions Stay ahead of the market with the latest news and analysis and maximize your portfolio's potential Significant shareholder GENMAB A/S has made a substantial move in Merus stock, acquiring 278,441 shares in a recent transaction. The total value of this purchase amounts to $27,008,777, underscoring a strong show of confidence in Merus from one of its key investors. Recent Updates on MRUS stock In the last 24 hours, news around Merus has centered on its acquisition by Genmab A/S and the resulting corporate transition, rather than short‑term price swings. Shareholders approved Genmab’s offer to buy all outstanding Merus shares at a fixed cash price, and the deal has now closed with over 94% of shares tendered, triggering changes to the board and executive team, including the appointment of Jan van de Winkel as CEO. These developments effectively anchor the stock around the agreed acquisition price and shift analyst focus from standalone growth prospects to integration with Genmab’s strategy. Where analysts have adjusted or reaffirmed targets and ratings, the rationale is tied to this takeover-driven valuation cap, Merus’s weaker standalone fundamentals (declining revenue, significant losses, and a negative P/E), and technical indicators showing strong upward momentum but overbought conditions that limit further upside now that the company is being absorbed into Genmab. Spark’s Take on MRUS Stock According to Spark, TipRanks’ AI Analyst, MRUS is a Neutral. Merus’s overall stock score is primarily impacted by its weak financial performance, characterized by declining revenue and substantial losses. While technical analysis indicates strong upward momentum, the overbought signals suggest caution. The negative P/E ratio further reflects the company’s financial struggles, limiting its valuation appeal. To see Spark’s full report on MRUS stock, click here. More about Merus YTD Price Performance: 129.34% Average Trading Volume: 2,508,180 Technical Sentiment Signal: Buy Current Market Cap: $7.36B