X0306
4
2021-06-01
0
0001496323
IGM Biosciences, Inc.
IGMS
0001578771
Hambleton Julie
C/O IGM BIOSCIENCES, INC.
325 E MIDDLEFIELD ROAD
MOUNTAIN VIEW
CA
94043
1
0
0
0
Common Stock
2021-06-01
4
S
0
2000
80.00
D
3000
D
The sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.
/s/ Misbah Tahir, by power of attorney
2021-06-03