Rivian Automotive, Inc.
MX ˙ BMV ˙ US76954A1034
SecurityMX:RIVN / Rivian Automotive, Inc.
InstitutionSavant Capital, LLC
Latest Disclosed Ownership29,208 shares
Latest Disclosed Value $ 439,578
Savant Capital, LLC reports 6.94% increase in ownership of RIVN / Rivian Automotive, Inc.

On May 4, 2026 - Savant Capital, LLC filed a 13F-HR form disclosing ownership of 29,208 shares of Rivian Automotive, Inc. (MX:RIVN) valued at $439,578 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 27,313 shares of Rivian Automotive, Inc.. This represents a change in shares of 6.94% during the quarter.

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)
2026-05-04 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 29,208 1,895 6.94 440 -18.40 0.0021
2026-02-10 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 27,313 3,815 16.24 538 56.40 0.0031
2026-03-04 2025-09-30 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 23,498 4,996 27.00 345 35.43 0.0021
2025-11-05 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 24,848 -53,867 365 0.0019
2026-03-04 2025-06-30 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 18,502 1,222 7.07 254 18.14 0.0018
2025-08-06 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 78,715 -32,766 1,082 0.0067
2026-03-04 2025-03-31 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 17,280 -88,937 -83.73 215 -84.77 0.0018
2025-05-08 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 111,481 5,264 1,388 0.0101
2025-01-29 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 106,217 -75,944 -41.69 1,413 -30.89 0.0111
2024-11-04 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 182,161 10,069 5.85 2,044 -11.52 0.0170
2024-08-05 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 172,092 172,092 2,309 0.0231
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.