SEC 13F Intelligence

Mass General Brigham, Inc / RIVN

Mass General Brigham, Inc’s Rivian Automotive Inc Position

Does Mass General Brigham, Inc own Rivian Automotive Inc (RIVN)? Not currently — the last reported position was 45.1K shares worth $1M in Q3 2023; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$1M
Q3 2023
Shares
45.1K
% of Portfolio
+10.16%
Quarters Held
3
position exited

Position History RIVN

Reported value by quarter
Q1 ’23: $698Q1 ’23Q2 ’23: $750,933Q2 ’23Q3 ’23: $1MQ3 ’23filingsflow.com
QuarterSharesValue% of Portfolio
Q3 202345.1K$1M+10.16%
Q2 202345.1K$750,933+0.68%
Q1 202345.1K$698+0.54%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Mass General Brigham, Inc’s full portfolio or all institutional holders of RIVN.