리비안 오토모티브, Inc.
MX ˙ BMV ˙ US76954A1034
SecurityMX:RIVN / Rivian Automotive, Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership171,075 shares
Latest Disclosed Value $ 2,574,679
Millennium Management Llc ownership in RIVN / Rivian Automotive, Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 171,075 shares of Rivian Automotive, Inc. (MX:RIVN) valued at $2,574,679 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,472,107 shares of Rivian Automotive, Inc.. This represents a change in shares of -93.08% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (RIVN) in the form of stock options. The firm currently holds call options representing 310,000 of underlying shares valued at $4,665,500 USD and put options representing 976,500 of underlying shares valued at $14,696,325 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:RIVN / Rivian Automotive, Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 171,075 -2,301,032 -93.08 2,575 -94.72 0.0011
2026-02-17 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 2,472,107 -741,846 -23.08 48,725 3.27 0.0205
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 3,213,953 1,906,402 145.80 47,181 162.62 0.0201
2025-08-14 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 1,307,551 436,708 50.15 17,966 65.71 0.0087
2025-05-15 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 870,843 -1,879,750 -68.34 10,842 -70.37 0.0058
2025-02-14 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 2,750,593 2,515,941 1,072.20 36,583 1,289.89 0.0179
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 234,652 -4,629,347 -95.18 2,633 -95.97 0.0012
2024-08-14 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 4,863,999 2,211,085 83.35 65,275 124.70 0.0302
2024-05-15 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 2,652,914 1,409,079 113.29 29,049 -0.45 0.0124
2024-02-14 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 1,243,835 -3,193,521 -71.97 29,180 -72.92 0.0126
2023-11-14 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 4,437,356 2,583,728 139.39 107,739 248.88 0.0544
2023-08-14 2023-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 1,853,628 694,330 59.89 30,881 72.08 0.0152
2023-05-15 2023-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 1,159,298 -34,745 -2.91 17,946 -18.45 0.0103
2023-02-14 2022-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 1,194,043 1,159,440 3,350.69 22,006 1,832.05 0.0122
2022-11-14 2022-09-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 34,603 -3,916 -10.17 1,139 14.93 0.0007
2022-08-15 2022-06-30 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 38,519 -107,397 -73.60 991 -86.48 0.0006
2022-05-16 2022-03-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 145,916 143,557 6,085.50 7,331 2,892.24 0.0039
2022-02-14 2021-12-31 13F RIVIAN AUTOMOTIVE COM CL A 76954A103 2,359 2,359 245 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A Call 310,000 -43.66 4,666 -56.98 n/a n/a n/a
2026-02-17 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A Call 550,200 -5.15 10,844 27.35 n/a n/a n/a
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A Call 580,100 -28.34 8,516 -23.44 n/a n/a n/a
2025-08-14 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A Call 809,500 -3.59 11,123 6.40 n/a n/a n/a
2025-05-15 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A Call 839,600 623.79 10,453 577.89 n/a n/a n/a
2025-02-14 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A Call 116,000 282.84 1,543 354.87 n/a n/a n/a
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A Call 30,300 340 n/a n/a n/a
2024-08-14 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A Call 76,600 571.93 839 213.86 n/a n/a n/a
2024-02-14 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A Call 11,400 -80.58 267 -81.26 n/a n/a n/a
2023-11-14 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A Call 58,700 1,425 n/a n/a n/a
2023-08-14 2023-06-30 13F RIVIAN AUTOMOTIVE COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F RIVIAN AUTOMOTIVE COM CL A Call 518,500 8,026 n/a n/a n/a
2023-02-14 2022-12-31 13F RIVIAN AUTOMOTIVE COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F RIVIAN AUTOMOTIVE COM CL A Call 19,500 -82.86 642 -78.08 n/a n/a n/a
2022-08-15 2022-06-30 13F RIVIAN AUTOMOTIVE COM CL A Call 113,800 1,038.00 2,929 483.47 n/a n/a n/a
2022-05-16 2022-03-31 13F RIVIAN AUTOMOTIVE COM CL A Call 10,000 502 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F RIVIAN AUTOMOTIVE COM CL A Put 976,500 -60.86 14,696 -70.11 n/a n/a n/a
2026-02-17 2025-12-31 13F RIVIAN AUTOMOTIVE COM CL A Put 2,494,600 -52.73 49,169 -36.53 n/a n/a n/a
2025-11-14 2025-09-30 13F RIVIAN AUTOMOTIVE COM CL A Put 5,277,400 -2.18 77,472 4.51 n/a n/a n/a
2025-08-14 2025-06-30 13F RIVIAN AUTOMOTIVE COM CL A Put 5,395,000 30.22 74,127 43.71 n/a n/a n/a
2025-05-15 2025-03-31 13F RIVIAN AUTOMOTIVE COM CL A Put 4,143,000 58.57 51,580 48.44 n/a n/a n/a
2025-02-14 2024-12-31 13F RIVIAN AUTOMOTIVE COM CL A Put 2,612,700 -17.98 34,749 -2.78 n/a n/a n/a
2024-11-14 2024-09-30 13F RIVIAN AUTOMOTIVE COM CL A Put 3,185,500 148.79 35,741 108.01 n/a n/a n/a
2024-08-14 2024-06-30 13F RIVIAN AUTOMOTIVE COM CL A Put 1,280,400 -27.37 17,183 -10.99 n/a n/a n/a
2024-05-15 2024-03-31 13F RIVIAN AUTOMOTIVE COM CL A Put 1,762,900 31.84 19,304 -38.47 n/a n/a n/a
2024-02-14 2023-12-31 13F RIVIAN AUTOMOTIVE COM CL A Put 1,337,200 50.47 31,371 45.39 n/a n/a n/a
2023-11-14 2023-09-30 13F RIVIAN AUTOMOTIVE COM CL A Put 888,700 77.74 21,578 159.03 n/a n/a n/a
2023-08-14 2023-06-30 13F RIVIAN AUTOMOTIVE COM CL A Put 500,000 99.36 8,330 114.58 n/a n/a n/a
2023-05-15 2023-03-31 13F RIVIAN AUTOMOTIVE COM CL A Put 250,800 313.86 3,882 247.54 n/a n/a n/a
2023-02-14 2022-12-31 13F RIVIAN AUTOMOTIVE COM CL A Put 60,600 -17.66 1,117 -53.88 n/a n/a n/a
2022-11-14 2022-09-30 13F RIVIAN AUTOMOTIVE COM CL A Put 73,600 -2.00 2,422 25.30 n/a n/a n/a
2022-08-15 2022-06-30 13F RIVIAN AUTOMOTIVE COM CL A Put 75,100 1,933 n/a n/a n/a
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.