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Granahan Investment Management LLC

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

Total Filings

65

Stocks Covered

25

Latest Filing

Dec 5, 2025

Filings

PORCH GROUP, INC.

SC 13G/A · Dec 5, 2025

11.0%

11.6M shares

INDIE SEMICONDUCTOR, INC.

SC 13G/A · Nov 14, 2025

8.8%

17.5M shares

KURA SUSHI USA, INC.

SC 13G · Nov 14, 2025

6.0%

671K shares

PORCH GROUP, INC.

SC 13G/A · Nov 14, 2025

9.2%

9.6M shares

Digital Turbine, Inc.

SC 13G · Nov 14, 2025

5.3%

5.7M shares

INDIE SEMICONDUCTOR, INC.

SC 13G/A · Jun 11, 2025

10.1%

19.6M shares

PORCH GROUP, INC.

SC 13G/A · Jan 8, 2025

11.8%

11.9M shares

Genius Sports Limited

SC 13G/A · Nov 14, 2024

3.7%

7.9M shares

Cytosorbents Corporation

SC 13G/A · Nov 14, 2024

3.9%

2.1M shares

Castle Biosciences, Inc.

SC 13G/A · Nov 14, 2024

1.5%

425K shares

THE LOVESAC COMPANY

SC 13G/A · Nov 14, 2024

3.1%

477K shares

INDIE SEMICONDUCTOR, INC.

SC 13G/A · Nov 14, 2024

9.9%

17.8M shares

bluebird bio, Inc.

SC 13G/A · Nov 14, 2024

0.0%

0 shares

908 Devices, Inc.

SC 13G/A · Nov 14, 2024

2.5%

861K shares

EverQuote, Inc.

SC 13G/A · Nov 14, 2024

2.3%

718K shares

BIOMERICA, INC.

SC 13G/A · Nov 14, 2024

3.1%

527K shares

PORCH GROUP, INC.

SC 13G/A · Nov 14, 2024

8.4%

10.0M shares

INDIE SEMICONDUCTOR, INC.

SC 13G/A · Apr 11, 2024

11.8%

19.4M shares

bluebird bio, Inc.

SC 13G · Feb 14, 2024

7.4%

8.1M shares

Genius Sports Limited

SC 13G · Feb 14, 2024

6.3%

13.6M shares

Magnite, Inc.

SC 13G/A · Feb 14, 2024

4.9%

6.7M shares

ICAD INC.

SC 13G/A · Feb 14, 2024

1.6%

426K shares

LIQUIDITY SERVICES INC.

SC 13G/A · Feb 14, 2024

1.0%

318K shares

THE LOVESAC COMPANY

SC 13G/A · Feb 14, 2024

9.2%

1.4M shares

PORCH GROUP, INC.

SC 13G/A · Feb 14, 2024

12.0%

11.9M shares

EverQuote, Inc.

SC 13G/A · Feb 14, 2024

5.3%

1.5M shares

BIOMERICA, INC.

SC 13G/A · Feb 14, 2024

6.4%

1.1M shares

Castle Biosciences, Inc.

SC 13G · Feb 14, 2024

8.1%

2.2M shares

908 Devices, Inc.

SC 13G · Feb 14, 2024

6.3%

2.0M shares

Cytosorbents Corporation

SC 13G · Feb 14, 2024

6.9%

3.6M shares

KORNIT DIGITAL LTD.

SC 13G/A · Feb 14, 2024

4.5%

2.2M shares

INDIE SEMICONDUCTOR, INC.

SC 13G/A · Feb 14, 2024

8.2%

13.2M shares

AIRGAIN, INC.

SC 13G/A · Dec 7, 2023

0.0%

0 shares

Chicken Soup for the Soul Entertainment, Inc.

SC 13G/A · Oct 18, 2023

0.0%

0 shares

ICAD INC.

SC 13G/A · Jul 24, 2023

5.9%

1.5M shares

LIQUIDITY SERVICES INC.

SC 13G/A · Feb 14, 2023

6.0%

2.1M shares

ShotSpotter, Inc.

SC 13G/A · Feb 14, 2023

4.5%

553K shares

Porch Group, Inc.

SC 13G/A · Feb 14, 2023

13.2%

13.3M shares

ICAD INC.

SC 13G/A · Feb 14, 2023

11.2%

2.8M shares

EVOLENT HEALTH, INC

SC 13G/A · Feb 14, 2023

3.1%

3.2M shares

Chicken Soup for the Soul Entertainment, Inc.

SC 13G/A · Feb 14, 2023

10.5%

1.4M shares

Magnite, Inc.

SC 13G/A · Feb 14, 2023

7.8%

10.4M shares

KORNIT DIGITAL LTD.

SC 13G · Feb 14, 2023

7.1%

3.5M shares

EverQuote, Inc.

SC 13G/A · Feb 14, 2023

6.3%

1.6M shares

BIOMERICA, INC.

SC 13G/A · Feb 14, 2023

8.4%

1.1M shares

INDIE SEMICONDUCTOR, INC.

SC 13G · Feb 14, 2023

6.0%

7.3M shares

THE LOVESAC COMPANY

SC 13G · Feb 14, 2023

8.6%

1.3M shares

AIRGAIN, INC.

SC 13G · Feb 14, 2023

6.8%

690K shares

ICAD INC.

SC 13G/A · Nov 2, 2022

10.2%

2.6M shares

PORCH GROUP, INC.

SC 13G · Jul 11, 2022

10.1%

10.0M shares