As of 17:50 MSK, Tesla shares were up 5.7% on Nasdaq, trading at $418.6 per share.

On September 12, 2025, Tesla closed at $395.3; at peak on September 15, shares hit $430.3.

This marks Musk’s largest open-market purchase since 2020, when he bought roughly $10 million of Tesla stock.

Analysts suggest the move signals Musk’s confidence in Tesla’s future, following a board-approved nearly $1 trillion compensation plan:

12 tranches of stock tied to ambitious targets, including:

Market cap growth: $2T → $8.5T

20M vehicles sold

1M robots delivered

1M Robotaxi in commercial operation

Takeaway: Musk putting his own money on the line often drives market optimism — and Tesla stock responded immediately.