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Mitchell P. Kopin

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

Total Filings

235

Stocks Covered

104

Latest Filing

Mar 5, 2026

Filings

Edible Garden AG Incorporated

SC 13G · May 30, 2024

5.0%

159K shares

N/A

Interactive Strength Inc.

SC 13G · May 29, 2024

5.3%

1.4M shares

Virpax Pharmaceuticals, Inc.

SC 13G · May 23, 2024

5.0%

111K shares

Tivic Health Systems, Inc.

SC 13G · May 15, 2024

5.0%

325K shares

Helius Medical Technologies, Inc.

SC 13G · May 14, 2024

5.0%

90K shares

Innovative Eyewear, Inc.

SC 13G · May 9, 2024

5.9%

1.0M shares

N/A

Tantech Holdings Ltd

SC 13G · May 8, 2024

10.0%

815K shares

TFF Pharmaceuticals, Inc.

SC 13G · May 8, 2024

5.0%

156K shares

Nuwellis, Inc.

SC 13G · May 3, 2024

5.0%

815K shares

N/A

PainReform Ltd.

SC 13G · Apr 24, 2024

7.9%

202K shares

Longeveron Inc.

SC 13G · Apr 17, 2024

5.0%

174K shares

N/A

Bio-Path Holdings, Inc.

SC 13G · Apr 3, 2024

7.1%

54K shares

ASLAN Pharmaceuticals Limited

SC 13G · Mar 21, 2024

4.4%

25.0M shares

Bone Biologics Corporation

SC 13G · Mar 14, 2024

10.0%

100K shares

N/A

Aclarion, Inc.

SC 13G · Mar 6, 2024

5.0%

376K shares

N/A

Venus Concept Inc.

SC 13G · Mar 1, 2024

5.0%

321K shares

N/A

Nuvve Holding Corp.

SC 13G · Feb 12, 2024

8.9%

411K shares

N/A

RedHill Biopharma Ltd.

SC 13G · Feb 2, 2024

4.0%

1.3M shares

N/A

Bone Biologics Corporation

SC 13G · Nov 27, 2023

5.0%

224K shares

INVO Bioscience, Inc.

SC 13G · Aug 11, 2023

7.1%

184K shares

Adamis Pharmaceuticals Corporation

SC 13G · Aug 10, 2023

7.6%

650K shares

N/A

Allarity Therapeutics, Inc.

SC 13G · Jul 14, 2023

5.0%

45K shares

Innovative Eyewear, Inc.

SC 13G · Jun 30, 2023

4.2%

569K shares

N/A

Dermata Therapeutics, Inc.

SC 13G · Jun 1, 2023

5.0%

144K shares

N/A

OncoSec Medical Incorporated

SC 13G · May 25, 2023

5.0%

313K shares

N/A

Allarity Therapeutics, Inc.

SC 13G · Apr 28, 2023

4.2%

400K shares

N/A

SenesTech, Inc.

SC 13G · Apr 19, 2023

5.0%

154K shares

N/A

Clearmind Medicine Inc.

SC 13G · Apr 14, 2023

6.3%

385K shares

N/A

Atlis Motor Vehicles Inc.

SC 13G · Feb 24, 2023

0.0%

0 shares

N/A

TOP Ships Inc.

SC 13G · Feb 23, 2023

5.0%

1.0M shares

N/A

Revelation Biosciences, Inc.

SC 13G · Feb 21, 2023

5.0%

185K shares

N/A

OceanPal Inc.

SC 13G · Feb 17, 2023

10.0%

2.7M shares

SINTX Technologies, Inc.

SC 13G · Feb 16, 2023

4.5%

120K shares

N/A

Tenax Therapeutics, Inc.

SC 13G · Feb 13, 2023

5.0%

480K shares

WiSA Technologies, Inc.

SC 13G · Dec 9, 2022

5.0%

3.5M shares

Avenue Therapeutics, Inc.

SC 13G · Oct 17, 2022

45.0%

4.2M shares

N/A

Aditxt, Inc.

SC 13G · Sep 26, 2022

50.0%

4.3M shares

Baudax Bio, Inc.

SC 13G · Sep 6, 2022

6.5%

1.1M shares

N/A

Performance Shipping Inc.

SC 13G · Aug 22, 2022

8.4%

5.4M shares

Palisade Bio, Inc.

SC 13G · Aug 22, 2022

10.0%

7.6M shares

Timber Pharmaceuticals, Inc.

SC 13G · Aug 15, 2022

4.2%

5.8M shares

Helius Medical Technologies, Inc.

SC 13G · Aug 15, 2022

8.4%

2.5M shares

Enveric Biosciences, Inc.

SC 13G · Aug 1, 2022

10.0%

130K shares

Kiora Pharmaceuticals, Inc.

SC 13G · Aug 1, 2022

10.0%

3.5M shares

N/A

Performance Shipping Inc.

SC 13G · Jul 27, 2022

5.0%

1.4M shares

N/A

United Maritime Corporation

SC 13G · Jul 27, 2022

4.9%

447K shares

Agile Therapeutics, Inc.

SC 13G · Jul 11, 2022

10.0%

3.4M shares

ToughBuilt Industries, Inc.

SC 13G · Jun 27, 2022

10.0%

431K shares

AIkido Pharma Inc.

SC 13G · Jun 14, 2022

3.0%

160K shares

Baudax Bio, Inc.

SC 13G · May 27, 2022

5.0%

424K shares