Rivian Automotive, Inc.
DE ˙ DB ˙ US76954A1034
15,36 € ↓ -0,06 (-0,36%)
2026-06-03
DEL PRIS
SecurityDE:99U / Rivian Automotive, Inc.
InstitutionEdgestream Partners, L.P.
Latest Disclosed Ownership394,487 shares
Latest Disclosed Value $ 5,937,029
Edgestream Partners, L.P. reports 47.91% increase in ownership of 99U / Rivian Automotive, Inc.

On May 18, 2026 - Edgestream Partners, L.P. filed a 13F-HR form disclosing ownership of 394,487 shares of Rivian Automotive, Inc. (DE:99U) valued at $4,946,867 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 266,699 shares of Rivian Automotive, Inc.. This represents a change in shares of 47.91% during the quarter. The current value of the position is $6,059,320 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-18 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 394,487 127,788 47.91 5,937 12.96 0.1948
2026-02-13 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 266,699 215,073 416.60 5,257 594.32 0.1479
2025-11-12 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 51,626 -288,537 -84.82 758 -83.80 0.0222
2025-08-13 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 340,163 161,183 90.06 4,674 109.74 0.1300
2025-05-02 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 178,980 -100,618 -35.99 2,228 -40.08 0.0756
2025-02-07 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 279,598 279,598 3,719 0.1584
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 0 -85,343 -100.00 0 -100.00
2024-08-09 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 85,343 85,343 1,145 0.0551
2024-05-10 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 0 -24,626 -100.00 0 -100.00
2024-02-14 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 24,626 12,459 102.40 578 95.59 0.0416
2023-11-15 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 12,167 12,167 295 0.0235
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.