Rivian Automotive, Inc.
US ˙ NasdaqGS ˙ US76954A1034

SecurityRIVN / Rivian Automotive, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership355,649 shares
Latest Disclosed Value $ 5,352,385
Advisor Group Holdings, Inc. reports 6.75% decrease in ownership of RIVN / Rivian Automotive, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 355,649 shares of Rivian Automotive, Inc. (US:RIVN) valued at $5,352,517 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 381,396 shares of Rivian Automotive, Inc.. This represents a change in shares of -6.75% during the quarter. The current value of the position is $6,497,707 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 355,649 -25,747 -6.75 5,352 -28.80 0.0046
2026-02-17 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 381,396 -2,524 -0.66 7,517 36.15 0.0110
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 383,920 -61,943 -13.89 5,521 -9.86 0.0077
2025-09-04 2025-06-30 13F/A-1 IVIAN AUTOMOTIVE COM CL A 76954A103 445,863 2,957 0.67 6,125 11.10 0.0109
2025-08-13 2025-06-30 13F IVIAN AUTOMOTIVE COM CL A 76954A103 421,273 -21,633 5,616 0.0065
2025-05-12 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 442,906 32,071 7.81 5,514 0.92 0.0123
2025-06-06 2024-12-31 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 410,835 107,523 35.45 5,464 60.58 0.0123
2025-02-07 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 280,084 -23,228 3,184 0.0081
2024-11-13 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 303,312 26,367 9.52 3,403 -8.45 0.0077
2024-08-13 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 276,945 -36,134 -11.54 3,717 8.46 0.0088
2024-05-10 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 313,079 10,614 3.51 3,427 -51.71 0.0077
2024-02-12 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 302,465 -78,610 -20.63 7,095 -23.31 0.0124
2023-11-13 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 381,075 133,252 53.77 9,252 121.82 0.0137
2023-08-21 2023-06-30 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 247,823 20,725 9.13 4,171 18.80 0.0075
2023-08-10 2023-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 247,823 20,725 4,171 0.0011
2023-05-12 2023-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 227,098 6,094 2.76 3,512 -13.82 0.0066
2023-02-10 2022-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 221,004 730 0.33 4,075 -43.79 0.0083
2022-11-14 2022-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 220,274 42,018 23.57 7,248 58.01 0.0166
2022-08-10 2022-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 178,256 81,951 85.10 4,587 -5.21 0.0101
2022-05-04 2022-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 96,305 27,017 38.99 4,839 -32.62 0.0094
2022-02-03 2021-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 69,288 69,288 7,182 0.0136
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.