Looking at the affidavit [1], Executive 1 is definitely the ex-CEO.
"On April 10, 2019... Executive 2 texted Executive 1... sending along a link to the Newsletter’s coverage that day [2] of Executive 1's compensation".
[1] https://www.scribd.com/document/465728291/FBI-Affidavit-agai...
[2] https://www.ecommercebytes.com/C/blog/blog.pl?/pl/2019/4/155...