Much of their growth comes from live action properties like completing production on the first half of season four of Wynonna Earp and Netflix ordering a second season of Locke & Key. They also credit things like puzzles, board games, coloring books and new graphic novels. They were also able to soften the blow of the pandemic through things like Paycheck Protection Program loans amounting to $3.0 million for furloughed employees, the majority of which have returned to work. IDW was also able to do things like focus on "back catalog, digital sales, direct-to-consumer sales, foreign sales, and book market channels" to keep ahead. This is where Transformers would have had the most influence on their revenue despite few titles being mentioned directly in the report.
There's a lot more information at the link above and charts aplenty if you really want to go deep on the details. If you were ever concerned that IDW was in trouble then rest assured that they're doing just fine and more Transformers comics are on the way!
