IGM Biosciences
IGMS
IGMS was delisted on the 13th of August, 2025.
50 hedge funds and large institutions have $463M invested in IGM Biosciences in 2019 Q4 according to their latest regulatory filings, with 33 funds opening new positions, 6 increasing their positions, 4 reducing their positions, and 10 closing their positions.
230% more first-time investments, than exits
New positions opened: 33 | Existing positions closed: 10
160% more capital invested
Capital invested by funds: $178M → $463M (+$285M)
52% more funds holding
Funds holding: 33 → 50 (+17)
50% more repeat investments, than reductions
Existing positions increased: 6 | Existing positions reduced: 4
8.95% more ownership
Funds ownership: 41.64% → 50.59% (+8.9%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
United Kingdom
|
+$25.1M |
| 2 |
RCM
RA Capital Management
Boston,
Massachusetts
|
+$13M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$12.1M |
| 4 |
BlackRock
New York
|
+$6.17M |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$3.08M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$4.5M |
| 2 |
DM
Deerfield Management
New York
|
-$4.44M |
| 3 |
OAM
Oxford Asset Management
Oxford,
United Kingdom
|
-$1.33M |
| 4 |
AG
Artal Group
Luxembourg
|
-$1.26M |
| 5 |
MIM
Monashee Investment Management
Boston,
Massachusetts
|
-$1.17M |
IGMS Hedge Fund Activity: Q4 2019 in Review
50 of the 5,076 institutional investors tracked by Wall St. Rank reported a position in IGM Biosciences (IGMS) for Q4 2019, worth a combined $463M — up 160% from $178M a quarter earlier.
Buyers outnumbered sellers: 33 funds opened new IGMS positions and 10 closed out — a net gain of 23 holders — while 6 added to existing stakes and 4 trimmed.
The largest buyer was Janus Henderson Group, adding an estimated $25.1M. The largest seller was Millennium Management, exiting entirely with an estimated $4.5M sold.
- 50 institutional investors held IGM Biosciences (IGMS) as of Q4 2019, up from 33 in Q3 2019.
- Funds reported $463M of IGM Biosciences stock for Q4 2019, up 160% quarter-over-quarter.
- 33 funds opened new IGM Biosciences positions in Q4 2019 and 10 closed out, a net change of +23 holders.
- The largest IGM Biosciences buyer in Q4 2019 was Janus Henderson Group, an estimated $25.1M added.
- The largest IGM Biosciences seller in Q4 2019 was Millennium Management, an estimated $4.5M sold.
Based on aggregated 13F filings for Q4 2019.