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Rubric Capital Management LP

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

Total Filings

156

Stocks Covered

58

Latest Filing

Feb 13, 2026

Filings

Stratasys Ltd.

SC 13G/A · Nov 13, 2024

8.7%

6.2M shares

Collegium Pharmaceutical, Inc.

SC 13G/A · Nov 13, 2024

3.9%

1.3M shares

QuidelOrtho Corporation

SC 13G · Nov 13, 2024

6.3%

4.2M shares

GoodRx Holdings, Inc.

SC 13G/A · Nov 13, 2024

4.8%

4.7M shares

Werewolf Therapeutics, Inc.

SC 13G/A · Nov 13, 2024

3.0%

1.3M shares

Pediatrix Medical Group, Inc.

SC 13G · Nov 13, 2024

9.6%

8.3M shares

OPKO Health, Inc.

SC 13G · Nov 13, 2024

7.0%

48.7M shares

BGC Group, Inc.

SC 13G/A · Nov 13, 2024

4.5%

17.0M shares

Trevi Therapeutics, Inc.

SC 13G/A · Nov 13, 2024

6.9%

5.0M shares

ANI Pharmaceuticals, Inc.

SC 13G/A · Nov 13, 2024

0.3%

57K shares

Zymeworks, Inc.

SC 13G · Nov 13, 2024

5.5%

3.9M shares

ReNew Energy Global Plc

SC 13G · Nov 13, 2024

5.6%

13.7M shares

Adaptive Biotechnologies Corporation

SC 13G · Nov 13, 2024

9.8%

14.4M shares

Mereo BioPharma Group plc

SC 13D/A · Jun 17, 2024

14.2%

108.5M shares

Xperi Inc.

SC 13D/A · Jun 11, 2024

9.2%

4.1M shares

Xperi Inc.

SC 13D/A · May 31, 2024

9.0%

4.0M shares

Heron Therapeutics, Inc.

SC 13D/A · May 31, 2024

17.7%

26.7M shares

Mereo BioPharma Group plc

SC 13D/A · Apr 16, 2024

14.2%

99.7M shares

Xperi Inc.

SC 13D/A · Feb 21, 2024

9.3%

4.0M shares

Xperi Inc.

SC 13D/A · Feb 14, 2024

8.6%

3.7M shares

GoodRx Holdings, Inc.

SC 13G · Feb 12, 2024

6.4%

5.9M shares

Par Pacific Holdings, Inc.

SC 13G/A · Feb 12, 2024

2.0%

1.2M shares

Golar LNG Limited

SC 13G/A · Feb 12, 2024

6.2%

6.5M shares

Arcutis Biotherapeutics, Inc.

SC 13G · Feb 12, 2024

7.0%

6.6M shares

Mativ Holdings, Inc.

SC 13G/A · Feb 12, 2024

7.4%

4.0M shares

Kiniksa Pharmaceuticals, Ltd.

SC 13G · Feb 12, 2024

8.2%

2.9M shares

Ovid Therapeutics Inc.

SC 13G/A · Feb 12, 2024

7.5%

5.3M shares

Sutro Biopharma, Inc.

SC 13G/A · Feb 12, 2024

5.5%

3.3M shares

Digimarc Corporation

SC 13G/A · Feb 12, 2024

0.0%

0 shares

scPharmaceuticals Inc.

SC 13G · Feb 12, 2024

9.8%

3.5M shares

Chimerix, Inc.

SC 13G/A · Feb 12, 2024

0.0%

0 shares

Werewolf Therapeutics, Inc.

SC 13G/A · Feb 12, 2024

5.3%

1.9M shares

LendingClub Corporation

SC 13G/A · Feb 12, 2024

0.0%

0 shares

Telesat Corporation

SC 13G/A · Feb 12, 2024

7.1%

960K shares

Collegium Pharmaceutical, Inc.

SC 13G/A · Feb 12, 2024

8.5%

2.8M shares

BGC Group, Inc.

SC 13G/A · Feb 12, 2024

5.2%

20.0M shares

Playa Hotels & Resorts N.V.

SC 13G/A · Feb 12, 2024

3.2%

4.4M shares

ANI Pharmaceuticals, Inc.

SC 13G · Feb 12, 2024

5.5%

1.1M shares

Koppers Holdings Inc.

SC 13G/A · Feb 12, 2024

4.8%

1.0M shares

Orthofix Medical Inc.

SC 13G · Feb 12, 2024

10.0%

3.7M shares

Stratasys Ltd.

SC 13G · Feb 12, 2024

6.2%

4.3M shares

Karyopharm Therapeutics Inc.

SC 13G/A · Feb 12, 2024

0.0%

0 shares

Trevi Therapeutics, Inc.

SC 13G/A · Feb 12, 2024

8.9%

5.7M shares

Xperi Inc.

SC 13D · Jan 23, 2024

7.6%

3.3M shares

Mereo BioPharma Group plc

SC 13D/A · Nov 20, 2023

14.2%

99.7M shares

TherapeuticsMD, Inc.

SC 13D/A · Nov 17, 2023

25.7%

2.9M shares

Mereo BioPharma Group plc

SC 13D/A · Nov 15, 2023

13.9%

97.3M shares

Mereo BioPharma Group plc

SC 13D/A · Nov 13, 2023

13.9%

97.3M shares

Mereo BioPharma Group plc

SC 13D/A · Nov 8, 2023

13.6%

95.6M shares

Mereo BioPharma Group plc

SC 13D/A · Nov 6, 2023

13.3%

93.4M shares