Bain Capital Life Sciences Fund, L.P.

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

Stocks Covered

Latest Filing

Nov 14, 2025

Filings

PHVS

Pharvaris N.V.

SC 13G/A · Nov 14, 2025

3.0%

1.9M shares

XFOR

X4 PHARMACEUTICALS, INC.

SC 13G · Sep 15, 2025

10.0%

2.4M shares

PHVS

PHARVARIS N.V.

SC 13G/A · Jan 22, 2024

3.8%

2.0M shares

PHVS

PHARVARIS N.V.

SC 13G/A · Jun 23, 2023

7.1%

2.9M shares

ANNX

Annexon, Inc.

SC 13G/A · May 30, 2023

5.5%

2.9M shares

ANNX

Annexon, Inc.

SC 13G/A · Feb 14, 2023

10.0%

4.9M shares

XFOR

X4 Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2023

10.0%

12.2M shares

DVAX

Dynavax Technologies Corporation

SC 13D/A · Aug 17, 2022

3.9%

4.9M shares

ARQT

ARCUTIS BIOTHERAPEUTICS, INC.

SC 13D/A · Aug 8, 2022

4.5%

2.7M shares

ARQT

ARCUTIS BIOTHERAPEUTICS, INC.

SC 13D/A · May 27, 2022

5.3%

2.7M shares

XFOR

X4 Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2022

10.0%

2.9M shares

RPID

Rapid Micro Biosystems, Inc.

SC 13G · Feb 14, 2022

22.2%

7.7M shares