Rivian Automotive, Inc.
DE ˙ DB ˙ US76954A1034
15,34 € ↑0,00 (0,03%)
2026-06-05
DEL PRIS
SecurityDE:99U / Rivian Automotive, Inc.
InstitutionColony Group, LLC
Latest Disclosed Ownership85,597 shares
Latest Disclosed Value $ 1,648,644
Colony Group, LLC reports 87.40% increase in ownership of 99U / Rivian Automotive, Inc.

On February 13, 2026 - Colony Group, LLC filed a 13F-HR form disclosing ownership of 85,597 shares of Rivian Automotive, Inc. (DE:99U) valued at $1,477,404 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 45,675 shares of Rivian Automotive, Inc.. This represents a change in shares of 87.40% during the quarter. The current value of the position is $1,312,887 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)
2026-02-13 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 85,597 39,922 87.40 1,649 145.97
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 45,675 -29,917 -39.58 671 -35.45 0.0011
2025-08-14 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 75,592 11,058 17.14 1,039 29.27 0.0023
2025-05-20 2025-03-31 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 64,534 13,427 26.27 803 18.26 0.0020
2025-05-15 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 64,534 14,497 803 0.0020
2025-05-29 2024-12-31 13F/A-2 RIVIAN AUTOMOTIVE COM CL A 76954A103 51,107 24,623 92.97 680 124.09 0.0018
2025-05-20 2024-12-31 13F/A-1 RIVIAN AUTOMOTIVE COM CL A 76954A103 50,037 23,553 680 0.0018
2025-02-14 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 50,037 23,553 680 0.0018
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 26,484 26,484 303 0.0010
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.