When I've looked it up, the shares of each owned by Blackrock is pretty small. Less than 10% each. Where is all of this evidence they're both owned by Blackrock?

Edited to add: I went checking again for the amounts of each that Blackrock owns and discovered that the Dominion company they own stocks in is Dominion electric. Which has nothing to do with Dominion voting machines.

As far as I can find, they don't own any shares of Dominion voting machines.

If anyone can show evidence they do, please share.

Thanks

When I've looked it up, the shares of each owned by Blackrock is pretty small. Less than 10% each. Where is all of this evidence they're both owned by Blackrock?