John A. Kryzanowski

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

Total Filings

8

Stocks Covered

2

Latest Filing

Feb 14, 2024

Filings

SYBX

Synlogic, Inc.

SC 13G/A · Feb 14, 2024

9.5%

874K shares

SYBX

Synlogic, Inc.

SC 13G/A · Jan 20, 2023

6.3%

4.4M shares

SYBX

Synlogic, Inc.

SC 13G · Jan 20, 2023

5.3%

3.7M shares

APTX

Aptinyx Inc.

SC 13G/A · Jan 20, 2023

9.8%

6.6M shares

APTX

Aptinyx Inc.

SC 13G/A · Jun 24, 2022

8.7%

5.9M shares

APTX

Aptinyx Inc.

SC 13G/A · Jun 24, 2022

5.8%

1.9M shares

APTX

Aptinyx Inc.

SC 13G/A · Jun 24, 2022

7.4%

4.7M shares

APTX

Aptinyx Inc.

SC 13G · Jun 24, 2022

5.1%

1.8M shares