ImmunoGen Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

NasdaqGS:IMGN Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
06 Nov 23SellUS$1,513,970Renee LentiniIndividual99,017US$15.29

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of IMGN?
Owner TypeNumber of SharesOwnership Percentage
Private Companies5,2540.00196%
Individual Insiders1,004,5470.375%
General Public14,766,7665.52%
Hedge Funds17,503,4176.54%
Institutions234,382,45087.6%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 21.3%.


Top Shareholders

Top 25 shareholders own 69% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
9.15%
The Vanguard Group, Inc.
24,482,155US$764.6m17.1%0.01%
8.15%
BlackRock, Inc.
21,823,243US$681.5m7.64%0.01%
6.61%
Janus Henderson Group plc
17,684,816US$552.3m14.1%0.24%
6.54%
Redmile Group, LLC
17,503,417US$546.6m-1.28%16.56%
4.98%
RA Capital Management, L.P.
13,322,288US$416.1m472%5.41%
4.95%
Wellington Management Group LLP
13,258,997US$414.1m36%0.06%
3.02%
State Street Global Advisors, Inc.
8,075,671US$252.2m-15.5%0.01%
2.61%
D. E. Shaw & Co., L.P.
6,995,239US$218.5m11.4%0.35%
2.22%
Fairmount Funds Management LLC
5,929,592US$185.2m-1.66%13.37%
2.16%
FMR LLC
5,788,099US$180.8m3.13%0.01%
2.07%
Norges Bank Investment Management
5,539,334US$173.0m0%0.02%
1.83%
Geode Capital Management, LLC
4,899,975US$153.0m3.1%0.01%
1.62%
Morgan Stanley, Investment Banking and Brokerage Investments
4,331,504US$135.3m46.1%0.02%
1.46%
T. Rowe Price Group, Inc.
3,906,370US$122.0m68.2%0.01%
1.39%
Artisan Partners Limited Partnership
3,724,583US$116.3m-0.04%0.09%
1.39%
Pictet Asset Management Limited
3,708,139US$115.8m414%0.08%
1.14%
Hood River Capital Management LLC
3,044,485US$95.1m2.04%2.52%
1.11%
Tavistock Life Sciences
2,961,000US$92.5m0%4.0%
1.1%
Emerald Advisers, LLC
2,933,190US$91.6m-10.5%2.13%
1.08%
Teachers Insurance and Annuity Association-College Retirement Equities Fund
2,886,241US$90.1m0%0.02%
0.94%
Maverick Capital, Ltd.
2,518,527US$78.7m-33.5%1.63%
0.94%
Voloridge Investment Management, LLC
2,512,251US$78.5m23.7%0.34%
0.91%
Woodline Partners LP
2,433,161US$76.0m-4.49%0.81%
0.89%
Northern Trust Global Investments
2,370,864US$74.0m-1.05%0.01%
0.76%
Sofinnova Investment, Inc.
2,045,202US$63.9m147%3.04%