 NEW YORK, March 27, 2021 PRNewswire -- Juan Monteverde , founder and managing partner at Monteverde Associates PC, a national securities firm rated Top 50 in the 2018 and 2019 ISS Securities Class Action Services Report and headquartered at the Empire State Building in New York City, is investigating Thoma Bravo Advantage TBA or the Company TBA relating to its proposed merger with ironSource. Under the terms of the agreement, TBA shareholders will own only 9 of the combined company. 