裡維安汽車公司
US ˙ NasdaqGS ˙ US76954A1034

SecurityRIVN / Rivian Automotive, Inc.
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership23,789 shares
Latest Disclosed Value $ 358,030
CAPROCK Group, Inc. reports 36.29% increase in ownership of RIVN / Rivian Automotive, Inc.

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 23,789 shares of Rivian Automotive, Inc. (US:RIVN) valued at $358,024 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 17,455 shares of Rivian Automotive, Inc.. This represents a change in shares of 36.29% during the quarter. The current value of the position is $431,057 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)
2026-05-11 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 23,789 6,334 36.29 358 4.07 0.0087
2026-01-28 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 17,455 17,455 344 0.0073
2025-05-15 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 0 -10,608 -100.00 0 -100.00
2025-01-23 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 10,608 10,608 141 0.0046
2024-08-06 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 0 -10,806 -100.00 0 -100.00
2024-04-29 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 10,806 -7,657 -41.47 118 -72.75 0.0068
2024-01-18 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 18,463 -1,255 -6.36 433 -9.41 0.0277
2023-10-18 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 19,718 19,718 479 0.0362
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.