Sign in Sign Up Free

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

HARPOON THERAPEUTICS, INC.

SC 13G · Nov 6, 2023

10.0%

1.7M shares

MACROGENICS, INC.

SC 13G · Oct 30, 2023

6.1%

3.8M shares

SOLENO THERAPEUTICS, INC.

SC 13G · Oct 5, 2023

4.6%

1.2M shares

CHIMERIX, INC.

SC 13G · Sep 29, 2023

7.3%

6.5M shares

ARS PHARMACEUTICALS, INC.

SC 13D/A · Sep 25, 2023

9.9%

9.5M shares

CYMABAY THERAPEUTICS, INC.

SC 13G · Sep 22, 2023

6.2%

6.9M shares

Cytek Biosciences, Inc.

SC 13D/A · Sep 19, 2023

5.0%

6.8M shares

ARS PHARMACEUTICALS, INC.

SC 13D · Aug 31, 2023

7.1%

6.8M shares

TAYSHA GENE THERAPIES, INC.

SC 13G · Aug 25, 2023

10.0%

18.7M shares

GRACELL BIOTECHNOLOGIES INC.

SC 13G · Aug 21, 2023

10.0%

48.6M shares

NEKTAR THERAPEUTICS

SC 13G · Aug 17, 2023

9.8%

18.7M shares

Bellus Health Inc.

SC 13G/A · Aug 14, 2023

0.0%

0 shares

Kinnate Biopharma Inc.

SC 13G/A · Aug 14, 2023

0.0%

0 shares

VOR BIOPHARMA INC.

SC 13D/A · Aug 11, 2023

33.7%

22.8M shares

89BIO, INC.

SC 13D/A · Aug 11, 2023

16.7%

12.9M shares

DICE THERAPEUTICS, INC.

SC 13D/A · Aug 9, 2023

0.0%

0 shares

NEWAMSTERDAM PHARMA COMPANY N.V.

SC 13G/A · Aug 1, 2023

11.3%

9.3M shares

Acumen Pharmaceuticals, Inc.

SC 13D/A · Jul 25, 2023

25.9%

15.0M shares

TALARIS THERAPEUTICS, INC.

SC 13G · Jul 6, 2023

5.5%

2.3M shares

UNICYCIVE THERAPEUTICS, INC.

SC 13G · Jul 6, 2023

10.0%

3.5M shares

Aerovate Therapeutics, Inc.

SC 13D/A · Jun 27, 2023

30.0%

8.3M shares

DICE THERAPEUTICS, INC.

SC 13D/A · Jun 21, 2023

16.5%

7.9M shares

Satsuma Pharmaceuticals, Inc.

SC 13D/A · Jun 12, 2023

0.0%

0 shares

4D MOLECULAR THERAPEUTICS, INC.

SC 13G · Jun 5, 2023

6.7%

2.8M shares

Icosavax, Inc.

SC 13D/A · May 30, 2023

12.5%

6.0M shares

TRAVERE THERAPEUTICS, INC.

SC 13G/A · May 15, 2023

0.0%

0 shares

DA32 Life Science Tech Acquisition Corp.

SC 13G/A · May 15, 2023

0.0%

0 shares

ARYA SCIENCES ACQUISITION CORP V.

SC 13G/A · May 15, 2023

0.0%

0 shares

Satsuma Pharmaceuticals, Inc.

SC 13D/A · Apr 18, 2023

17.9%

5.9M shares

NANOSTRING TECHNOLOGIES, INC.

SC 13G · Apr 10, 2023

5.5%

2.6M shares

Eliem Therapeutics, Inc.

SC 13D/A · Apr 10, 2023

48.8%

13.2M shares

Ascendis Pharma A/S

SC 13G/A · Apr 10, 2023

17.4%

10.0M shares

GH Research PLC

SC 13G/A · Mar 30, 2023

10.7%

5.6M shares

ACRIVON THERAPEUTICS, INC.

SC 13D/A · Mar 30, 2023

22.0%

4.8M shares

89BIO, INC.

SC 13D/A · Mar 30, 2023

18.0%

12.9M shares

DICE THERAPEUTICS, INC.

SC 13D/A · Mar 29, 2023

16.1%

7.7M shares

CUREVAC N.V.

SC 13G · Mar 27, 2023

5.5%

12.2M shares

ORCHARD THERAPEUTICS PLC

SC 13G · Mar 20, 2023

10.0%

18.6M shares

ENLIVEN THERAPEUTICS, INC.

SC 13G/A · Feb 27, 2023

5.2%

2.1M shares

MINERALYS THERAPEUTICS, INC.

SC 13D · Feb 24, 2023

7.8%

3.2M shares

Kinnate Biopharma Inc.

SC 13G/A · Feb 14, 2023

9.7%

4.3M shares

Ascendis Pharma A/S

SC 13G/A · Feb 14, 2023

12.2%

7.0M shares

GH Research PLC

SC 13G/A · Feb 14, 2023

9.4%

4.9M shares

RHYTHM PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2023

9.8%

5.5M shares

CELCUITY INC.

SC 13G/A · Feb 14, 2023

9.9%

2.2M shares

THIRD HARMONIC BIO, INC.

SC 13G/A · Feb 14, 2023

1.3%

535K shares

CONCERT PHARMACEUTICALS, INC.

SC 13G/A · Feb 14, 2023

10.0%

5.2M shares

ImmunoGen, Inc.

SC 13G/A · Feb 14, 2023

10.0%

22.1M shares

INSTIL BIO, INC.

SC 13G/A · Feb 14, 2023

0.0%

0 shares

Tenaya Therapeutics, Inc.

SC 13G/A · Feb 14, 2023

10.0%

6.4M shares