Mario Gabelli via GAMCO, Gabelli Funds, and Teton Advisors holds a total of 14.12% of Tredegar's common stock. The position involves 4.6 million shares. Out of the total position, GAMCO owns over 3.8 million shares, equal to 11.84% of the common stock. Earlier in October, GAMCO sent another letter to the company, mentioning that the fund would consider proposing a vote regarding the poison pill policy. The fund also stated that they "remain committed to shareholder value creation"