Insmed Inc’s filing revealed that its Chair and CEO Lewis William unloaded Company’s shares for reported $3.25 million on Jan 12 ’26. In the deal valued at $169.00 per share,19,215 shares were sold. As a result of this transaction, Lewis William now holds 306,891 shares worth roughly $49.54 million.
Then, Flammer Martina M.D. sold 1,887 shares, generating $351,341 in total proceeds. Upon selling the shares at $186.19, the Chief Medical Officer now owns 84,907 shares.
Before that, William Lewis bought 19,215 shares. Insmed Inc shares valued at $3,247,325 were divested by the Officer at a price of $169.00 per share.
A number of analysts have revised their coverage, including Rothschild & Co Redburn’s analysts, who began to cover the stock in early December with a ‘”a Buy”‘ rating. Wells Fargo started covering the stock on October 20, 2025. It rated INSM as “an Overweight”.
Price Performance Review of INSM
On Friday, Insmed Inc [NASDAQ:INSM] saw its stock jump 1.35% to $161.42. Over the last five days, the stock has lost -8.27%. Insmed Inc shares have risen nearly 129.94% since the year began. Nevertheless, the stocks have fallen -7.25% over the past one year.
How much short interest is there in Insmed Inc?
A steep rise in short interest was recorded in Insmed Inc stocks on 2025-12-31, growing by 1.15 million shares to a total of 11.02 million shares. Yahoo Finance data shows the prior-month short interest on 2025-11-28 was 9.87 million shares. There was a rise of 10.43%, which implies that there is a positive sentiment for the stock.
The most recent change occurred on August 20, 2025 when William Blair began covering the stock and recommended ‘”an Outperform”‘ rating.
