Rtw Investments 13F: Adds $5M to MIST Stake

RTW Investments has significantly increased its stake in MIST, as revealed in its latest 13F filing with the SEC. The firm boosted its holdings by 3,824,899 shares, a 152% increase, bringing its total to 6,331,001 shares. The value of this position is approximately $8.29 million as of the reporting period.

What Changed in RTW Investments' MIST Position

RTW Investments' recent activity in MIST saw a substantial increase in its holdings. The firm previously held 2,506,102 shares and added 3,824,899 shares, resulting in a total of 6,331,001 shares. This represents a 152% increase in its position, reflecting a significant investment in the company.

Other Institutional Activity in MIST

Institutional interest in MIST has been active, with several key players adjusting their positions. Propel Bio Management, LLC maintained its position with 4,118,321 shares valued at about $5.08 million. Two Sigma Investments, LP increased its holdings by 802,715 shares, ending with 2,317,176 shares worth approximately $2.76 million. Goldman Sachs Group Inc entered with 2,000,025 shares valued at $2.38 million. Meanwhile, Marshall Wace, LLP added 287,709 shares for a total of 1,944,530 shares, valued at $2.31 million. Millennium Management LLC made a notable increase, adding 1,141,690 shares to hold 1,544,325 shares valued at $1.84 million.

Milestone Pharmaceuticals Inc. Stock Up 43.0%

Shares of MIST are trading around $1.31. The stock's recent market activity has been influenced by various institutional movements and analyst ratings. MIST's market cap and other financial metrics were not available, but the stock's performance continues to draw attention from investors.

Insider Buying and Selling at Milestone Pharmaceuticals Inc.

Recent insider activity at MIST includes several purchases on June 10, 2026. Insiders such as Michael John Tomsicek, Robert James Wills, Andrew Saik, Joseph Papa, Lisa Giles, and Stuart Duty each acquired 77,000 shares. These transactions were not part of a pre-arranged trading plan.

Analysts Set New Price Targets

Analysts have shown continued interest in MIST. On May 14, 2026, Wells Fargo maintained its buy rating with a $7 price target. HC Wainwright & Co. reiterated its buy rating with an $8 target back in January. The consensus among analysts remains bullish, with a general buy recommendation and an average target price reflecting optimism about the company's future.

About MIST

MIST operates in a sector that was not specified, focusing on innovative solutions and products. The company continues to attract interest from both institutional investors and analysts, suggesting potential growth opportunities. Further details about its operations, leadership, and strategic goals were not provided in the available data.

Bottom Line

RTW Investments' substantial increase in its stake in MIST signals a strong interest in the company's prospects. While 13F filings like this one are backward-looking and may not reflect current holdings, they provide valuable insights into institutional sentiment. Investors often track such filings to gauge market trends and institutional confidence. As MIST continues to develop its business, the attention from major funds and analysts could play a significant role in its future performance.