They're probably counting e.g. SWEIII with an intern. Still, I'm more amazed that a single person has done feedback session with 9000 people in two months ;)

Two months are around 40 business days, which gives over 200 people per day, or one person every two minutes. The only way this would be possible is when he did mostly collective sessions, which heavily undermines the impressivness of the feat.

*she

My guess would be that the "conducting" sessions actually means sending out 9000 emails with a link to a survey.

Probably some heavy delegation.

A manager can also be a report. I assume that statistic includes middle managers, such as group managers, directors, etc.

Ex:

* Director might have 3 group manager reports

* Each group manager might have 3 manager reports

* Each manager might have 4 engineer reports

In the above example, we have 10 managers and 36 engineers, which isn't too far off from the 25% management statistic.

I'm parsing this as: "Of the 9000 employees that attended sessions, 3000 were managers."

Yes, that is the correct way to parse it. That implies that Uber has at least 3k managers, possibly more.

OP was commenting that >3k managers seems like a high proportion of their ~12k total employees.

Yes, I think you misinterpreted that.

The sentence from the article says 3,000 out of 9,000 (not 12,000) that have had sessions are managers...