As of June 2025, 69.33% is owned by Indian Promoters and 30.67% by Public.

Top five Promoters holding highest number of shares of Neptune Petrochem company are Paresh Subodhchandra Shah (76.55 lakhs shares / 33.79%), Riddhi Pareshkumar Shah (72.80 lakhs shares / 32.14%), Sanjaykumar Subodhchandra Shah (3.40 lakhs shares / 1.50%), Neha Sanjaykumar Shah (1.45 lakhs shares / 0.64%) and Sanjay S Shah HUF (1.00 lakhs shares / 0.44%).