Transformers is a subtheme of BrickHeadz introduced in 2025 and currently consists of 3 sets. Most sets were released in 2025 which accounted for 2 sets. Currently, the average annual growth of sets in BrickHeadz Transformers is approximately 4.6% per year, however, an increase in the near future is expected.
The LEGO BrickHeadz Transformers series debuted in 2025 with two sets: 40803 Optimus Prime and 40804 Bumblebee. Each set includes both a BrickHeadz-style robot figure and a corresponding vehicle build, representing their classic forms from the Transformers franchise.