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RA Capital Management, L.P.

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

Total Filings

441

Stocks Covered

166

Latest Filing

Feb 17, 2026

Filings

TVTX

TRAVERE THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2022

9.2%

5.6M shares

PYXS

Pyxis Oncology, Inc.

SC 13G/A · Feb 14, 2022

7.0%

2.3M shares

KNTE

Kinnate Biopharma Inc.

SC 13G/A · Feb 14, 2022

8.2%

3.6M shares

CCXI

ChemoCentryx, Inc.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

XLO

Xilio Therapeutics, Inc.

SC 13G/A · Feb 14, 2022

7.3%

2.0M shares

ORTX

ORCHARD THERAPEUTICS PLC

SC 13G/A · Feb 14, 2022

7.7%

9.7M shares

SCPH

SCPHARMACEUTICALS INC.

SC 13G/A · Feb 14, 2022

9.8%

6.7M shares

PHASQ

PhaseBio Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2022

5.9%

2.9M shares

OTIC

Otonomy, Inc.

SC 13G/A · Feb 14, 2022

9.9%

5.6M shares

MCRB

SERES THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

RYTM

RHYTHM PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2022

9.7%

4.9M shares

AVIR

ATEA PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

MGNX

MACROGENICS, INC

SC 13G/A · Feb 14, 2022

10.0%

6.1M shares

PHAT

PHATHOM PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2022

9.9%

3.1M shares

OLMA

Olema Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2022

5.3%

2.2M shares

ASND

Ascendis Pharma A/S

SC 13G/A · Feb 14, 2022

13.3%

7.6M shares

N/A

Frazier Lifesciences Acquisition Corporation

SC 13G/A · Feb 14, 2022

0.0%

0 shares

VRDN

VIRIDIAN THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

ZGNX

ZOGENIX, INC.

SC 13G/A · Feb 14, 2022

6.0%

3.3M shares

NVAX

NOVAVAX, INC.

SC 13G/A · Feb 14, 2022

2.8%

2.1M shares

GERN

GERON CORPORATION

SC 13G/A · Feb 14, 2022

10.0%

32.4M shares

NAUT

Nautilus Biotechnology, Inc. (f/k/a ARYA Sciences Acquisition Corp III)

SC 13G/A · Feb 14, 2022

2.0%

2.4M shares

GHRS

GH Research PLC

SC 13G/A · Feb 14, 2022

5.5%

2.8M shares

ATXS

Astria Therapeutics Inc. (f/k/a Catabasis Pharmaceuticals, Inc.)

SC 13G/A · Feb 14, 2022

9.7%

1.3M shares

BLSA

BCLS ACQUISITION CORP.

SC 13G/A · Feb 14, 2022

8.4%

1.3M shares

DYN

Dyne Therapeutics, Inc.

SC 13G/A · Feb 14, 2022

5.4%

2.8M shares

EWTX

EDGEWISE THERAPEUTICS, INC.

SC 13G · Feb 14, 2022

5.3%

2.6M shares

TNGX

Tango Therapeutics, Inc. (f/k/a BCTG Acquisition Corp.)

SC 13G/A · Feb 14, 2022

2.6%

2.3M shares

AKUS

AKOUOS, INC.

SC 13G/A · Feb 14, 2022

6.6%

2.3M shares

MIST

Milestone Pharmaceuticals Inc.

SC 13G/A · Feb 14, 2022

7.5%

2.2M shares

CTMX

CYTOMX THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

IMGN

ImmunoGen, Inc.

SC 13G/A · Feb 14, 2022

10.0%

22.2M shares

SPRY

Silverback Therapeutics, Inc.

SC 13G/A · Feb 14, 2022

5.0%

1.7M shares

FVAM

501 ACQUISITION CORP.

SC 13G/A · Feb 14, 2022

8.7%

750K shares

CNCE

CONCERT PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2022

10.0%

3.5M shares

XFOR

X4 PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2022

3.9%

1.1M shares

CYT

Cyteir Therapeutics, Inc.

SC 13G/A · Feb 14, 2022

9.5%

3.4M shares

LRMR

LARIMAR THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2022

7.5%

1.3M shares

KALV

KalVista Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2022

7.9%

1.9M shares

VRNA

Verona Pharma plc

SC 13G/A · Feb 14, 2022

10.0%

48.8M shares

N/A

Pardes Biosciences, Inc.

SC 13G · Jan 10, 2022

7.1%

4.4M shares