ING GROEP NV has opened a new $53.8M position in $INSM, per a new SEC 13F filing. This disclosure reflects the funds' holdings for the 09-30-2025 report period. You can see the fund's full portfolio on Quiver Quantitative, and also track the largest institutional owners of $INSM.
$INSM Hedge Fund Activity
We have seen 313 institutional investors add shares of $INSM stock to their portfolio, and 249 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- JPMORGAN CHASE & CO added 9,282,377 shares (+146.1%) to their portfolio in Q2 2025, for an estimated $934,178,421
- BLACKROCK, INC. removed 4,906,450 shares (-30.6%) from their portfolio in Q2 2025, for an estimated $493,785,128
- DARWIN GLOBAL MANAGEMENT, LTD. added 3,946,646 shares (+25.6%) to their portfolio in Q2 2025, for an estimated $397,190,453
- D. E. SHAW & CO., INC. added 2,687,739 shares (+365.7%) to their portfolio in Q2 2025, for an estimated $270,494,052
- BAKER BROS. ADVISORS LP added 2,332,274 shares (+43.3%) to their portfolio in Q2 2025, for an estimated $234,720,055
- FMR LLC added 1,698,877 shares (+50.0%) to their portfolio in Q2 2025, for an estimated $170,974,981
- PRICE T ROWE ASSOCIATES INC /MD/ removed 1,692,836 shares (-13.1%) from their portfolio in Q2 2025, for an estimated $170,367,015
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
$INSM Insider Trading Activity
$INSM insiders have traded $INSM stock on the open market 103 times in the past 6 months. Of those trades, 2 have been purchases and 101 have been sales.
Here’s a breakdown of recent trading of $INSM stock by insiders over the last 6 months:
- MARTINA M.D. FLAMMER (Chief Medical Officer) has made 0 purchases and 14 sales selling 264,088 shares for an estimated $33,589,027.
- ORLOV S NICOLE SCHAEFFER (Chief People Strategy Officer) has made 0 purchases and 16 sales selling 231,869 shares for an estimated $25,600,026.
- WILLIAM LEWIS (Chair and CEO) has made 0 purchases and 30 sales selling 216,936 shares for an estimated $20,065,264.
- SARA BONSTEIN (Chief Financial Officer) has made 0 purchases and 9 sales selling 186,012 shares for an estimated $18,234,222.
- MICHAEL ALEXANDER SMITH (Chief Legal Officer) has made 0 purchases and 20 sales selling 61,226 shares for an estimated $9,213,356.
- ROGER ADSETT (Chief Operating Officer) has made 0 purchases and 7 sales selling 46,953 shares for an estimated $5,012,233.
- MELVIN MD SHAROKY has made 0 purchases and 3 sales selling 30,000 shares for an estimated $3,964,700.
- DAVID W J MCGIRR has made 0 purchases and 2 sales selling 6,250 shares for an estimated $451,535.
- CLARISSA DESJARDINS has made 2 purchases buying 3,025 shares for an estimated $201,694 and 0 sales.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$INSM Congressional Stock Trading
Members of Congress have traded $INSM stock 4 times in the past 6 months. Of those trades, 1 have been purchases and 3 have been sales.
Here’s a breakdown of recent trading of $INSM stock by members of Congress over the last 6 months:
- REPRESENTATIVE GILBERT RAY CISNEROS, JR. has traded it 3 times. They made 0 purchases and 3 sales worth up to $45,000 on 09/22, 08/08, 07/07.
- REPRESENTATIVE JOSH GOTTHEIMER purchased up to $15,000 on 06/16.
To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.
$INSM Analyst Ratings
Wall Street analysts have issued reports on $INSM in the last several months. We have seen 15 firms issue buy ratings on the stock, and 0 firms issue sell ratings.
Here are some recent analyst ratings:
- RBC Capital issued a "Outperform" rating on 10/31/2025
- Goldman Sachs issued a "Buy" rating on 10/31/2025
- UBS issued a "Buy" rating on 10/31/2025
- Wells Fargo issued a "Overweight" rating on 10/31/2025
- B of A Securities issued a "Buy" rating on 10/27/2025
- TD Cowen issued a "Buy" rating on 10/02/2025
- Guggenheim issued a "Buy" rating on 09/08/2025
To track analyst ratings and price targets for $INSM, check out Quiver Quantitative's $INSM forecast page.
$INSM Price Targets
Multiple analysts have issued price targets for $INSM recently. We have seen 17 analysts offer price targets for $INSM in the last 6 months, with a median target of $165.0.
Here are some recent targets:
- Andrea Tan from Goldman Sachs set a target price of $225.0 on 10/31/2025
- Leonid Timashev from RBC Capital set a target price of $215.0 on 10/31/2025
- Tiago Fauth from Wells Fargo set a target price of $217.0 on 10/31/2025
- Trung Huynh from UBS set a target price of $223.0 on 10/31/2025
- Jason Zemansky from B of A Securities set a target price of $187.0 on 10/27/2025
- Ritu Baral from TD Cowen set a target price of $193.0 on 10/02/2025
- Vamil Divan from Guggenheim set a target price of $172.0 on 09/08/2025
Note that there may be inaccuracies in these estimates due to filing errors by the funds, parsing errors by us, or other anomalies.
Check out Quiver Quantitative's $INSM ticker page for more data.
