It is right in the SEC filling which anyone can look up. The 2000 shares sold were by the CEOs wife, which is why they are marked as indirect.
$80k is rich people walking around money when compared to ~$100 million. It was part of an automated selling plan and not suspicious in any way.
There's an old Peter Lynch quote about many reasons to sell but only one to buy.
Ok, so the report is on the person (CEO in this case). Only directors and certain executive levels are required to report.
Table I shows 'non-derivative securities' (regular stock). The CEO holds in their own name 3 million+ shares. No transaction was reported for those, but they have to be listed.
The CEO's spouse aquired 2000 shares at a cost of $1.425 each. After this transaction, they had 2000 shares total (column 5).
They then sold those shares for $40 each. After, they weren't holding any stock, so column 5 shows 0.
The CEO financially benefits from this, so the transactions are listed on their form, as (I) for indirect. If the spouse also had a position within Unity which required reporting this would be listed on their own SEC form as well.