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IGMS

IGM Biosciences
IGMS

Delisted

IGMS was delisted on the 13th of August, 2025.

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79 hedge funds and large institutions have $208M invested in IGM Biosciences in 2023 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 37 increasing their positions, 16 reducing their positions, and 15 closing their positions.

New
Increased
Maintained
Reduced
Closed

131% more repeat investments, than reductions

Existing positions increased: 37 | Existing positions reduced: 16

36% more call options, than puts

Call options by funds: $226K | Put options by funds: $166K

33% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 15

10.29% more ownership

Funds ownership: 61.26% → 71.55% (+10%)

7% more funds holding

Funds holding: 74 → 79 (+5)

15% less capital invested

Capital invested by funds: $245M → $208M (-$37.8M)

Holders
79
Holders Change
+5
Holders Change %
+6.76%
% of All Funds
1.24%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
20
Increased
37
Reduced
16
Closed
15
Calls
$226K
Puts
$166K
Net Calls
+$60K
Net Calls Change
-$769K

Top Buyers

Rank Fund Capital Flow
1
Fidelity Investments
Fidelity Investments
Massachusetts
+$14.4M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$12.4M
3
RCM
RA Capital Management
Massachusetts
+$10.5M
4
Millennium Management
Millennium Management
New York
+$10.4M
5
GPP
Great Point Partners
Connecticut
+$5.6M

Top Sellers

Rank Fund Capital Flow
1
Alkeon Capital Management
Alkeon Capital Management
New York
-$9.78M
2
RG
Redmile Group
California
-$4.06M
3
Marshall Wace
Marshall Wace
United Kingdom
-$3.03M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
-$1.78M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$1.67M
Name Holding Trade Value Shares
Change 		Change in
Stake
WP
26
Woodline Partners
California
$692K -$883K -78,825 -51%
Bank of New York Mellon
27
Bank of New York Mellon
New York
$666K +$68.9K +6,152 +9%
Walleye Capital
28
Walleye Capital
New York
$641K +$778K +69,417 New
OM
29
Opaleye Management
Massachusetts
$586K +$711K +63,500 New
BC
30
Bruce & Co
Illinois
$507K – – –
Dimensional Fund Advisors
31
Dimensional Fund Advisors
Texas
$482K -$479K -42,739 -45%
MCM
32
Moore Capital Management
New York
$462K +$560K +50,000 New
Manulife (Manufacturers Life Insurance)
33
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$452K +$126K +11,286 +30%
EBA
34
Eagle Bay Advisors
New York
$412K +$33.6K +3,000 +7%
Susquehanna International Group
35
Susquehanna International Group
Pennsylvania
$387K +$470K +41,941 New
TD Asset Management
36
TD Asset Management
Ontario, Canada
$385K +$256K +22,833 +121%
AllianceBernstein
37
AllianceBernstein
Tennessee
$302K +$77K +6,870 +27%
PI
38
Putnam Investments
Massachusetts
$269K +$95.4K +8,518 +41%
Swiss National Bank
39
Swiss National Bank
Switzerland
$264K +$73.9K +6,600 +30%
Squarepoint
40
Squarepoint
New York
$243K +$295K +26,312 New
Citadel Advisors
41
Citadel Advisors
Florida
$232K +$217K +19,379 +336%
MS
42
Maven Securities
Jersey
$229K +$278K +24,800 New
TI
43
Trexquant Investment
Connecticut
$216K +$262K +23,387 New
RhumbLine Advisers
44
RhumbLine Advisers
Massachusetts
$192K +$66.3K +5,915 +40%
JF
45
Jump Financial
Illinois
$183K +$222K +19,783 New
PCM
46
Prelude Capital Management
New York
$182K +$220K +19,675 New
Verition Fund Management
47
Verition Fund Management
Connecticut
$160K +$194K +17,306 New
Bank of America
48
Bank of America
North Carolina
$153K +$12.1K +1,079 +7%
California State Teachers Retirement System (CalSTRS)
49
California State Teachers Retirement System (CalSTRS)
California
$143K +$30K +2,674 +21%
HF
50
HRT Financial
New York
$140K +$171K +15,257 New
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IGMS Hedge Fund Activity: Q2 2023 in Review

79 of the 6,369 institutional investors tracked by Wall St. Rank reported a position in IGM Biosciences (IGMS) for Q2 2023, worth a combined $208M — down 15% from $245M a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new IGMS positions and 15 closed out — a net gain of 5 holders — while 37 added to existing stakes and 16 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $14.4M. The largest seller was Alkeon Capital Management, exiting entirely with an estimated $9.78M sold.

  • 79 institutional investors held IGM Biosciences (IGMS) as of Q2 2023, up from 74 in Q1 2023.
  • Funds reported $208M of IGM Biosciences stock for Q2 2023, down 15% quarter-over-quarter.
  • 20 funds opened new IGM Biosciences positions in Q2 2023 and 15 closed out, a net change of +5 holders.
  • The largest IGM Biosciences buyer in Q2 2023 was Fidelity Investments, an estimated $14.4M added.
  • The largest IGM Biosciences seller in Q2 2023 was Alkeon Capital Management, an estimated $9.78M sold.

Based on aggregated 13F filings for Q2 2023.