Rivian Automotive, Inc.
MX ˙ BMV ˙ US76954A1034
SecurityMX:RIVN / Rivian Automotive, Inc.
InstitutionIeq Capital, Llc
Latest Disclosed Ownership179,784 shares
Latest Disclosed Value $ 2,705,749
Ieq Capital, Llc reports 51.53% increase in ownership of RIVN / Rivian Automotive, Inc.

On May 14, 2026 - Ieq Capital, Llc filed a 13F-HR form disclosing ownership of 179,784 shares of Rivian Automotive, Inc. (MX:RIVN) valued at $2,705,749 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 118,645 shares of Rivian Automotive, Inc.. This represents a change in shares of 51.53% 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)
2026-05-14 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 179,784 61,139 51.53 2,706 15.70 0.0091
2026-02-13 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 118,645 1,689 1.44 2,338 36.25 0.0070
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 116,956 14,860 14.55 1,717 22.40 0.0052
2025-08-14 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 102,096 1,271 1.26 1,403 11.71 0.0086
2025-05-14 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 100,825 -760 -0.75 1,255 -7.11 0.0100
2025-02-03 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 101,585 6,344 6.66 1,351 26.50 0.0131
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 95,241 12,942 15.73 1,069 -3.26 0.0131
2024-08-12 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 82,299 1,142 1.41 1,104 24.32 0.0149
2024-05-09 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 81,157 66,301 446.29 889 155.17 0.0128
2024-02-07 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 14,856 -1,789 -10.75 349 -13.86 0.0058
2023-11-06 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 16,645 3,496 26.59 404 84.47 0.0082
2023-08-08 2023-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 13,149 13,149 219 0.0044
2023-02-04 2022-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 0 -13,175 -100.00 0 -100.00
2022-11-04 2022-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 13,175 517 4.08 434 33.13 0.0119
2022-07-27 2022-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 12,658 12,658 326 0.0099
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.