Activist investor & 5%+ owner · SC 13D/13G filings
Total Filings
114
Stocks Covered
45
Latest Filing
Feb 24, 2026
Cabaletta Bio, Inc.
SC 13G · Jan 13, 2023
5.0%
1.5M shares
Satsuma Pharmaceuticals, Inc.
SC 13G/A · Nov 16, 2022
0.0%
0 shares
Imara Inc.
SC 13G · Oct 24, 2022
5.7%
Immunic, Inc.
SC 13G · Oct 21, 2022
9.3%
3.8M shares
VIRIDIAN THERAPEUTICS, INC.
SC 13G · May 19, 2022
1.4M shares
Merus N.V.
SC 13G · May 16, 2022
5.1%
2.2M shares
Karyopharm Therapeutics Inc.
SC 13G · May 9, 2022
4.0M shares
VistaGen Therapeutics, Inc.
SC 13G · Apr 14, 2022
10.5M shares
SC 13G/A · Feb 14, 2022
11.8%
3.7M shares
Genocea Biosciences, Inc.
5.4%
3.1M shares
CymaBay Therapeutics, Inc.
7.8%
5.4M shares
Cogent Biosciences, Inc.
2.3M shares
Celcuity Inc.
6.2%
920K shares
BELLUS Health Inc.
SC 13G · Feb 14, 2022
5.3%
5.5M shares
