No. And if they did delay it to keep Trump from falsely claiming credit for it then good. That monster didn't deserve anything that could have even slightly improved his chances of winning.
I'm convinced that the news was delayed intentionally with the election in mind, and I'm totally OK with it. I think we have partly the public polls to thank for that. They made it seem like Biden was a heavy favorite to win, and thus the CEOs of Pfizer and Moderna probably thought that even if they bumped the needle in Trump's favor, Biden would still win and then this would poison their relationship with the new administration from the start.
If the polls accurately reflected the state of the race, I think these CEOs would have been tempted by the idea that if they boosted Trump into winning he would reward them (and their shareholders and stock portfolios) richly with federal government contracts and that might have been enough for them to sell their souls.