Institutional holders added a net 70,436,746 Rivian Class A shares in the second quarter, according to Form 13F filings compiled by Nasdaq.
A total of 417 holders raised their positions by a combined 106,424,812 shares, while 318 cut back by 31,005,657 and 84 exited the stock entirely, giving up 4,982,409.
Another 205 holders left their positions untouched, sitting on 708,978,324 shares — a block that includes Amazon.com Inc.’s unchanged 158,363,834.
Buyers narrowly outnumbered sellers, 417 against 402.
Two block placements did most of the work.
Slate Path Capital opened a 21,978,400-share position and Uber Technologies Inc. one of 19,553,911, together accounting for 86.7% of everything the quarter’s new entrants brought in.
What the Buckets Measure
The 417 increases include 111 holders opening positions for the first time, whose 47,930,214 shares are counted within the larger figure rather than alongside it.
The share totals above are changes rather than holdings: Vanguard Group Inc. alone, a reducer, holds 81,409,278 shares, more than the entire 31,005,657 attributed to the 318 that cut back.
That distinction also affects the ownership figure.
Nasdaq puts institutional ownership at 58.62% of 1,444 million shares outstanding, but its 846,408,793 total counts Vanguard twice.
The Vanguard Group reorganized its investment operations into two wholly owned advisers, Vanguard Capital Management and Vanguard Portfolio Management, effective January 12, 2026, after which the parent stopped reporting the funds’ holdings and filed more than a thousand amended ownership statements to say so.
The parent’s row on Rivian‘s register is frozen at 81,409,278 shares and dated December 31, 2025, while the two successors report 39,268,910 and 34,835,795 for the same money.
Biggest Buyers
D.E. Shaw delivered the quarter’s single largest purchase by an institutional investor, adding 12,203,342 shares to more than double its position to 20,832,777 Class A shares.
The stake was valued at $361.4 million as of June 30 and lifted the New York-based firm into Rivian‘s ten largest institutional holders.
Slate Path Capital’s 21,978,400-share entry was larger still, and the biggest single new position of the quarter.
BlackRock raised its holding by 2,448,064 shares, or 4.5%, to 56,419,011.
The position was worth $978.9 million at quarter-end.
State Street added 1,801,150 shares to reach 22,396,819, an 8.7% increase.
Deutsche Bank expanded its stake by 34.0% to 2,517,003 shares.
Uber Technologies appeared on Rivian‘s institutional register for the first time, reporting 19,553,911 shares acquired through a $300 million strategic equity investment tied to a robotaxi partnership contemplating up to $1.25 billion through 2031.
Biggest Sellers
Renaissance Technologies made the quarter’s largest reduction among continuing holders, selling 3,317,300 shares to cut its position 30.4% to 7,599,796.
Goldman Sachs followed, cutting 3,242,999 shares, or 36.5%, to 5,653,443.
Citigroup sold 2,547,235 shares to cut its position 29.4% to 6,127,012.
The sale marked the bank’s second consecutive quarterly trim and took its six-month disposal to 3.7 million shares — nearly 38% of the record position held at the end of 2025.
Baillie Gifford shaved 611,152 shares, a 1.4% reduction, yet remained Rivian‘s third-largest 13F filer at 43,210,348 shares.
JPMorgan Chase edged down 0.6% to 22,651,249 shares.
Vanguard Capital Management cut 990,512 shares and Vanguard Portfolio Management 1,249,388.
Among the 84 sold-out holders, the largest departures by share count came from Connor, Clark & Lunn Investment Management at 603,317 shares, Covalis Capital at 540,918, IMC-Chicago at 444,941, Tredje AP-Fonden at 268,677, Exoduspoint Capital Management at 247,796, and Winton Group at 246,871.
New Holders and Exits
The 112 new entrants outnumbered the 84 sold-out holders, and the share imbalance was far wider.
New positions accounted for 47,930,214 shares against 4,982,409 that exited, a nearly ten-to-one ratio.
Slate Path Capital and Uber alone made up 41,532,311 of that total, leaving 6,397,903 spread across the other 109 entrants.
The new-entrant figure therefore reflects two large block placements rather than broad-based open-market buying.
Uber‘s shares came through a strategic investment tied to its robotaxi program with the company.
Rivian issued about 82.4 million new Class A shares over the quarter, taking $1.0 billion from Volkswagen on April 30 and about $300 million from an Uber affiliate days later, so part of the institutional increase tracks the enlarged share count rather than open-market demand.
The company began customer deliveries of the R2 on June 9 and raised full-year delivery guidance to a range of 65,000 to 70,000 vehicles from 62,000 to 67,000.
Ownership Context
Rivian‘s shareholder register underwent its most significant reshuffling in years during the quarter, driven largely by strategic capital.
Volkswagen overtook Amazon as the largest single shareholder in May with 209,769,645 Class A shares, or 15.90% of the class, after completing a $1.0 billion milestone-linked equity tranche.
Amazon held 158,363,834 shares unchanged throughout the quarter, followed by BlackRock at 56.4 million and Baillie Gifford at 43.2 million, with Vanguard’s two successor advisers between them at 39.3 million and 34.8 million.
As of press time, Rivian shares were trading 0.6% lower at $14.79 on Tuesday, extending a decline for six consecutive market sessions now.
