Activist 13D/13G Filings - ImmunoGen Inc. (IMGN)

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime		TypeCompany
Symbol		Filed By
Symbol		Shares Owned
% Owned		Shares Vs. Prev ReportFiling
2022-02-10
08:17 am
Purchase		13GIMMUNOGEN INC
IMGN		VANGUARD GROUP INC15,131,752
6.87%		974,752increase
(+6.89%)		View
2022-02-09
09:19 am
Sale		13GIMMUNOGEN INC
IMGN		FMR LLC12,274,822
5.576%		-267,791decrease
(-2.14%)		View
2022-02-08
5:05 pm
Sale		13GIMMUNOGEN INC
IMGN		BlackRock Inc.
BLK		14,863,304
6.9%		-293,278decrease
(-1.93%)		View
2022-01-10
08:37 am
Sale		13GIMMUNOGEN INC
IMGN		WELLINGTON MANAGEMENT GROUP LLP13,902,498
6.32%		-8,181,605decrease
(-37.05%)		View
2021-02-16
4:39 pm
Purchase		13GIMMUNOGEN INC
IMGN		RA CAPITAL MANAGEMENT L.P.18,417,458
9.8%		18,417,458increase
(New Position)		View
2021-02-16
4:10 pm
Sale		13GIMMUNOGEN INC
IMGN		Redmile Group LLC10,528,179
5.6%		-4,111,781decrease
(-28.09%)		View
2021-02-10
6:01 pm
Sale		13GIMMUNOGEN INC
IMGN		RENAISSANCE TECHNOLOGIES LLC4,235,966
2.18%		-6,471,173decrease
(-60.44%)		View
2021-02-10
11:03 am
Sale		13GIMMUNOGEN INC
IMGN		VANGUARD GROUP INC14,157,000
7.27%		-68,670decrease
(-0.48%)		View
2021-02-09
5:20 pm
Sale		13GIMMUNOGEN INC
IMGN		Clearbridge Investments LLC6,892,928
3.5%		-2,157,941decrease
(-23.84%)		View
2021-02-08
10:25 am
Purchase		13GIMMUNOGEN INC
IMGN		FMR LLC12,542,613
6.441%		11,740,584increase
(+1463.86%)		View
2021-02-04
09:37 am
Purchase		13GIMMUNOGEN INC
IMGN		WELLINGTON MANAGEMENT GROUP LLP22,084,103
11.34%		3,981,879increase
(+22.00%)		View
2021-01-29
09:57 am
Purchase		13GIMMUNOGEN INC
IMGN		BlackRock Inc.
BLK		15,156,582
7.8%		2,974,593increase
(+24.42%)		View
2020-02-14
4:25 pm
Purchase		13GIMMUNOGEN INC
IMGN		Redmile Group LLC14,639,960
9.8%		3,755,353increase
(+34.50%)		View
2020-02-14
12:38 pm
Purchase		13GIMMUNOGEN INC
IMGN		Clearbridge Investments LLC9,050,869
6.05%		644,388increase
(+7.67%)		View
2020-02-13
2:58 pm
Sale		13GIMMUNOGEN INC
IMGN		STATE STREET CORP
STT		5,346,426
3.57%		-2,753,945decrease
(-34.00%)		View
2020-02-12
3:03 pm
Purchase		13GIMMUNOGEN INC
IMGN		RENAISSANCE TECHNOLOGIES LLC10,707,139
7.15%		10,707,139increase
(New Position)		View
2020-02-12
07:50 am
Purchase		13GIMMUNOGEN INC
IMGN		VANGUARD GROUP INC14,225,670
9.5%		3,733,447increase
(+35.58%)		View
2020-02-10
09:10 am
Purchase		13GIMMUNOGEN INC
IMGN		WELLINGTON MANAGEMENT GROUP LLP18,102,224
10.39%		14,921,527increase
(+469.13%)		View
2020-02-05
11:45 am
Sale		13GIMMUNOGEN INC
IMGN		BlackRock Inc.
BLK		12,181,989
8.1%		-196,215decrease
(-1.59%)		View
2019-05-09
4:49 pm
Sale		13GIMMUNOGEN INC
IMGN		MORGAN STANLEY
MS		2,760,341
1.8%		-5,266,358decrease
(-65.61%)		View
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