ImmunoGen Ownership

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

Recent Insider Transactions

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 IMU?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	885,636	0.401%
Hedge Funds	13,740,205	6.22%
General Public	14,637,070	6.63%
VC/PE Firms	21,741,458	9.85%
Institutions	169,746,559	76.9%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 8.9%.

Top Shareholders

Top 25 shareholders own 73.26% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
9.85%	RA Capital Management, L.P.	21,741,458	€104.9m	0%	2.43%
8.24%	State Street Global Advisors, Inc.	18,199,554	€87.8m	0%	0.01%
7.9%	BlackRock, Inc.	17,445,026	€84.1m	-2.42%	no data
7.08%	The Vanguard Group, Inc.	15,624,848	€75.4m	-2.7%	no data
6.22%	Deerfield Management Company, L.P. Series C	13,740,205	€66.3m	-8.52%	2.3%
4.53%	Wellington Management Group LLP	10,007,505	€48.3m	-6.62%	0.01%
3.87%	Redmile Group, LLC	8,548,145	€41.2m	-6.49%	1.54%
3.58%	Adage Capital Management, L.P.	7,900,000	€38.1m	-31.8%	0.1%
2.81%	Jennison Associates LLC	6,197,480	€29.9m	3,770%	0.03%
2.19%	ClearBridge Investments, LLC	4,825,543	€23.3m	-10.2%	0.02%
1.75%	Morgan Stanley, Investment Banking and Brokerage Investments	3,870,559	€18.7m	-16.6%	no data
1.68%	Geode Capital Management, LLC	3,707,278	€17.9m	0.58%	no data
1.61%	Maverick Capital, Ltd.	3,553,128	€17.1m	28.4%	0.44%
1.36%	Two Sigma Advisers, LP	3,012,418	€14.5m	6.57%	0.05%
1.36%	Deutsche Asset & Wealth Management	3,006,485	€14.5m	-0.81%	0.01%
1.29%	Candriam Luxembourg S.A.	2,854,635	€13.8m	170%	0.05%
1.15%	Dimensional Fund Advisors LP	2,540,851	€12.3m	57.7%	no data
1.1%	Two Sigma Investments, LP	2,424,757	€11.7m	19.7%	0.05%
0.96%	Northern Trust Global Investments	2,126,854	€10.3m	-0.81%	no data
0.88%	Norges Bank Investment Management	1,936,727	€9.3m	0%	no data
0.85%	Granahan Investment Management, LLC	1,876,960	€9.1m	-0.26%	0.32%
0.83%	Millennium Management LLC	1,840,837	€8.9m	-63.6%	0.01%
0.77%	Renaissance Technologies LLC	1,705,140	€8.2m	17.7%	0.01%
0.69%	Charles Schwab Investment Management, Inc.	1,525,106	€7.4m	4.16%	no data
0.68%	Tang Capital Management, LLC	1,500,000	€7.2m	0%	1.12%