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IMGN

Immunogen Inc
IMGN

Delisted

IMGN was delisted on the 9th of February, 2024.

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190 hedge funds and large institutions have $805M invested in Immunogen Inc in 2023 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 62 increasing their positions, 57 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

188% more call options, than puts

Call options by funds: $18.4M | Put options by funds: $6.38M

9% more repeat investments, than reductions

Existing positions increased: 62 | Existing positions reduced: 57

7% less funds holding

Funds holding: 204 → 190 (-14)

20% less capital invested

Capital invested by funds: $1B → $805M (-$198M)

32% less first-time investments, than exits

New positions opened: 21 | Existing positions closed: 31

Holders
190
Holders Change
-14
Holders Change %
-6.86%
% of All Funds
3.03%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
21
Increased
62
Reduced
57
Closed
31
Calls
$18.4M
Puts
$6.38M
Net Calls
+$12M
Net Calls Change
+$8.64M

Top Buyers

Rank Fund Capital Flow
1
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$56.7M
2
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$27.8M
3
Artisan Partners
Artisan Partners
Wisconsin
+$13.6M
4
Morgan Stanley
Morgan Stanley
New York
+$13.1M
5
Millennium Management
Millennium Management
New York
+$8.71M

Top Sellers

Rank Fund Capital Flow
1
DM
Deerfield Management
New York
-$31.5M
2
Jennison Associates
Jennison Associates
New York
-$29.1M
3
WP
Woodline Partners
California
-$24.9M
4
B
Braidwell
Connecticut
-$17.2M
5
GIM
Granahan Investment Management
Massachusetts
-$5.63M
Name Holding Trade Value Shares
Change 		Change in
Stake
Rafferty Asset Management
26
Rafferty Asset Management
New York
$5.25M -$1.04K -243 -0%
PA
27
Pinnacle Associates
New York
$5.09M -$30.2K -7,079 -0.5%
TCM
28
Tang Capital Management
California
$4.9M – – –
PAM
29
Panagora Asset Management
Massachusetts
$4.67M +$621K +145,791 +14%
RPAM
30
Rhenman & Partners Asset Management
Sweden
$4.64M -$1.07M -250,000 -17%
Fidelity Investments
31
Fidelity Investments
Massachusetts
$4.61M +$8.74K +2,051 +0.2%
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
$4.58M -$5.17M -1,212,259 -50%
PI
33
Putnam Investments
Massachusetts
$4.42M +$127K +29,841 +3%
Citigroup
34
Citigroup
New York
$4.22M +$2.12M +496,726 +82%
SAM
35
Sectoral Asset Management
Quebec, Canada
$3.85M +$842K +197,500 +25%
Citadel Advisors
36
Citadel Advisors
Florida
$3.74M +$4.04M +948,435 +3,562%
JP Morgan Chase
37
JP Morgan Chase
New York
$3.72M +$3.21M +752,266 +348%
SI
38
Sofinnova Investments
California
$3.55M -$3.25M -761,622 -45%
GIM
39
Granahan Investment Management
Massachusetts
$3.32M -$5.63M -1,321,192 -60%
Fisher Asset Management
40
Fisher Asset Management
Washington
$3.28M +$11.5K +2,705 +0.3%
Barclays
41
Barclays
United Kingdom
$3.27M +$299K +70,086 +9%
LOAMS
42
Lombard Odier Asset Management (Switzerland)
Switzerland
$3.03M -$624K -146,358 -16%
Bank of New York Mellon
43
Bank of New York Mellon
New York
$3M -$31K -7,273 -0.9%
VOYA Investment Management
44
VOYA Investment Management
Georgia
$2.65M -$158K -36,982 -5%
Prudential Financial
45
Prudential Financial
New Jersey
$2.63M -$1.9M -446,303 -39%
Susquehanna International Group
46
Susquehanna International Group
Pennsylvania
$2.53M +$1.42M +334,180 +103%
William Blair & Company
47
William Blair & Company
Illinois
$2.23M +$1M +235,000 +68%
UBS Group
48
UBS Group
Switzerland
$2.1M -$1.7M -399,586 -42%
BNP Paribas Financial Markets
49
BNP Paribas Financial Markets
France
$2.06M +$742K +174,138 +48%
CM
50
CM Management
Florida
$1.92M – – –
1
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IMGN Hedge Fund Activity: Q1 2023 in Review

190 of the 6,275 institutional investors tracked by Wall St. Rank reported a position in Immunogen Inc (IMGN) for Q1 2023, worth a combined $805M — down 20% from $1B a quarter earlier.

Sellers outnumbered buyers: 31 funds closed out of IMGN and 21 opened new positions — a net loss of 10 holders — while 57 trimmed existing stakes and 62 added.

The largest buyer was Janus Henderson Group, adding an estimated $56.7M. The largest seller was Deerfield Management, exiting entirely with an estimated $31.5M sold.

  • 190 institutional investors held Immunogen Inc (IMGN) as of Q1 2023, down from 204 in Q4 2022.
  • Funds reported $805M of Immunogen Inc stock for Q1 2023, down 20% quarter-over-quarter.
  • 21 funds opened new Immunogen Inc positions in Q1 2023 and 31 closed out, a net change of -10 holders.
  • The largest Immunogen Inc buyer in Q1 2023 was Janus Henderson Group, an estimated $56.7M added.
  • The largest Immunogen Inc seller in Q1 2023 was Deerfield Management, an estimated $31.5M sold.

Based on aggregated 13F filings for Q1 2023.