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Orin Hirschman

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

Total Filings

59

Stocks Covered

27

Latest Filing

Feb 2, 2026

Filings

N/A

Capstone Green Energy Corporation

SC 13G/A · Feb 2, 2026

9.9%

2.3M shares

PolyPid Ltd.

SC 13G/A · Jan 30, 2026

9.8%

1.8M shares

Talphera, Inc.

SC 13G/A · Jan 30, 2026

9.8%

4.7M shares

SmartKem, Inc.

SC 13G/A · Jan 30, 2026

9.9%

679K shares

Renovorx, Inc.

SC 13G/A · Jan 30, 2026

7.1%

2.6M shares

BK Technologies Corporation

SC 13G · Jan 30, 2026

5.7%

211K shares

Personalis, Inc.

SC 13G/A · Jan 30, 2026

3.8%

3.4M shares

Ideal Power, Inc

SC 13G/A · Jan 30, 2026

5.8%

492K shares

BIOMX INC.

SC 13G/A · Jan 30, 2026

0.1%

38K shares

N/A

Dror Ortho-Design, Inc.

SC 13G/A · Jan 30, 2026

9.9%

95.7M shares

Kiora Pharmaceuticals, Inc.

SC 13G/A · Jan 30, 2026

4.9%

193K shares

Grace Therapeutics, Inc.

SC 13G/A · Jan 28, 2026

5.9%

907K shares

Elutia Inc.

SC 13G/A · Jan 28, 2026

7.6%

3.1M shares

Coya Therapeutics, Inc.

SC 13G/A · Jan 28, 2026

5.3%

1.1M shares

Biofrontera Inc.

SC 13G/A · Jan 28, 2026

7.9%

915K shares

ARQ, Inc

SC 13G/A · Jan 28, 2026

5.8%

2.5M shares

Aprea Therapeutics, Inc.

SC 13G/A · Jan 28, 2026

9.9%

652K shares

Ideal Power Inc.

SC 13G/A · Nov 10, 2025

6.0%

513K shares

N/A

Myomo, Inc.

SC 13G/A · Nov 10, 2025

1.3%

523K shares

Renovorx, Inc.

SC 13G/A · Nov 10, 2025

7.1%

2.6M shares

Lightpath Technologies Inc

SC 13G/A · Nov 10, 2025

4.8%

2.2M shares

Electrovaya Inc.

SC 13G/A · Nov 10, 2025

1.3%

532K shares

SCPHARMACEUTICALS INC.

SC 13G/A · Nov 10, 2025

0.0%

0 shares

Velo3D, Inc.

SC 13G/A · Nov 10, 2025

0.0%

0 shares

Talphera, Inc.

SC 13G · Nov 10, 2025

9.7%

4.5M shares

Velo3D, Inc.

SC 13G · Nov 10, 2025

8.6%

1.7M shares

Theratechnologies, Inc.

SC 13G/A · Jul 29, 2025

3.4%

2.1M shares

Intellicheck, Inc.

SC 13G/A · Jul 29, 2025

0.8%

154K shares

IN8bio, Inc.

SC 13G/A · Jul 29, 2025

4.4%

150K shares

BK Technologies Corp

SC 13G/A · Jul 29, 2025

0.0%

0 shares

Plus Therapeutics, Inc.

SC 13G/A · Jul 29, 2025

3.9%

1.3M shares

PolyPid Ltd.

SC 13G · Jul 29, 2025

7.7%

1.2M shares

Verastem, Inc.

SC 13G/A · Jul 29, 2025

3.6%

2.0M shares

TELA Bio, Inc.

SC 13G/A · May 8, 2025

3.6%

1.4M shares

BIOMX INC.

SC 13G · May 8, 2025

6.3%

1.6M shares

Kiora Pharmaceuticals, Inc.

SC 13G/A · Feb 10, 2025

8.5%

256K shares

Aprea Therapeutics, Inc.

SC 13G/A · Feb 10, 2025

9.9%

539K shares

Coya Therapeutics, Inc.

SC 13G/A · Feb 10, 2025

8.0%

1.3M shares

Ideal Power, Inc

SC 13G/A · Feb 10, 2025

9.9%

823K shares

N/A

Myomo, Inc.

SC 13G/A · Feb 10, 2025

9.9%

3.4M shares

Personalis, Inc.

SC 13G/A · Feb 10, 2025

6.1%

4.3M shares

Plus Therapeutics, Inc.

SC 13G/A · Feb 10, 2025

9.5%

561K shares

Theratechnologies, Inc.

SC 13G/A · Feb 10, 2025

6.1%

3.0M shares

SmartKem, Inc.

SC 13G/A · Feb 4, 2025

9.9%

363K shares

SmartKem, Inc.

SC 13G/A · Feb 4, 2025

9.9%

380K shares

Intellicheck, Inc.

SC 13G/A · Jan 31, 2025

8.2%

1.6M shares

SCPHARMACEUTICALS INC.

SC 13G/A · Jan 31, 2025

8.4%

4.2M shares

Lightpath Technologies Inc

SC 13G/A · Jan 31, 2025

9.4%

3.7M shares

IN8bio, Inc.

SC 13G/A · Jan 31, 2025

8.5%

6.2M shares

TELA Bio, Inc.

SC 13G/A · Jan 31, 2025

6.8%

2.7M shares