I assume OP meant "last 4 reported financial quarters":

    2019 Q3   139.48M
    2019 Q2  (702.14M)
    2019 Q1  (408.33M)
    2018 Q4   143.00M

Total of (827.99M) [1]

[1] https://www.marketwatch.com/investing/stock/tsla/financials/...