Rivian Automotive, Inc.
MX ˙ BMV ˙ US76954A1034
SecurityMX:RIVN / Rivian Automotive, Inc.
InstitutionBartlett & Co. Wealth Management Llc
Latest Disclosed Ownership8,425 shares
Latest Disclosed Value $ 122,247
Bartlett & Co. Wealth Management Llc ownership in RIVN / Rivian Automotive, Inc.

On May 6, 2026 - Bartlett & Co. Wealth Management Llc filed a 13F-HR form disclosing ownership of 8,425 shares of Rivian Automotive, Inc. (MX:RIVN) valued at $122,247 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 8,425 shares of Rivian Automotive, Inc.. This represents a change in shares of 0.00% 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)
2026-05-06 2026-03-31 13F Rivian Automotive Inc COM 76954A103 8,425 0 0.00 122 -26.51 0.0015
2026-01-22 2025-12-31 13F Rivian Automotive Inc COM 76954A103 8,425 0 0.00 166 34.96 0.0022
2025-10-09 2025-09-30 13F Rivian Automotive Inc COM 76954A103 8,425 0 0.00 124 6.96 0.0016
2025-07-18 2025-06-30 13F Rivian Automotive Inc COM 76954A103 8,425 -3,000 -26.26 116 -19.01 0.0016
2025-04-24 2025-03-31 13F Rivian Automotive Inc COM 76954A103 11,425 3,005 35.69 142 27.93 0.0021
2025-01-17 2024-12-31 13F Rivian Automotive Inc COM 76954A103 8,420 0 0.00 112 18.09 0.0016
2024-10-17 2024-09-30 13F Rivian Automotive Inc COM 76954A103 8,420 -7 -0.08 94 -16.81 0.0014
2024-07-12 2024-06-30 13F Rivian Automotive Inc COM 76954A103 8,427 120 1.44 113 25.56 0.0017
2024-05-09 2024-03-31 13F Rivian Automotive Inc COM 76954A103 8,307 4,207 102.61 91 -6.25 0.0014
2024-02-14 2023-12-31 13F Rivian Automotive Inc COM 76954A103 4,100 -150 -3.53 97 -6.80 0.0016
2024-02-14 2023-09-30 13F Rivian Automotive Inc COM 76954A103 4,250 400 10.39 103 60.94 0.0019
2024-02-14 2023-06-30 13F Rivian Automotive Inc COM 76954A103 3,850 3,070 393.59 64 433.33 0.0011
2024-02-14 2023-03-31 13F Rivian Automotive Inc COM 76954A103 780 0 0.00 12 -14.29 0.0002
2024-02-14 2022-12-31 13F Rivian Automotive Inc COM 76954A103 780 -340 -30.36 14 -61.11 0.0003
2024-02-14 2022-09-30 13F Rivian Automotive Inc COM 76954A103 1,120 140 14.29 37 44.00 0.0008
2024-02-14 2022-06-30 13F Rivian Automotive Inc COM 76954A103 980 500 104.17 25 4.17 0.0005
2024-02-14 2022-03-31 13F Rivian Automotive Inc COM 76954A103 480 480 24 0.0004
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.