Archer Aviation Inc.
MX ˙ BMV ˙ US03945R1023
SecurityMX:ACHR / Archer Aviation Inc.
InstitutionGreen Alpha Advisors, LLC
Latest Disclosed Ownership123,381 shares
Latest Disclosed Value $ 637,880
Green Alpha Advisors, LLC reports 0.90% decrease in ownership of ACHR / Archer Aviation Inc.

On April 7, 2026 - Green Alpha Advisors, LLC filed a 13F-HR form disclosing ownership of 123,381 shares of Archer Aviation Inc. (MX:ACHR) valued at $637,880 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 124,506 shares of Archer Aviation Inc.. This represents a change in shares of -0.90% 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)
2026-04-07 2026-03-31 13F ARCHER AVIATION COM CL A 03945R102 123,381 -1,125 -0.90 638 -31.94 0.6281
2026-01-07 2025-12-31 13F ARCHER AVIATION COM CL A 03945R102 124,506 -3,393 -2.65 936 -23.59 0.8578
2025-10-15 2025-09-30 13F ARCHER AVIATION COM CL A 03945R102 127,899 -14,745 -10.34 1,225 -20.81 1.1828
2025-08-01 2025-06-30 13F ARCHER AVIATION COM CL A 03945R102 142,644 -8,928 -5.89 1,548 43.64 1.4784
2025-04-09 2025-03-31 13F ARCHER AVIATION COM CL A 03945R102 151,572 66,449 78.06 1,078 29.92 1.1509
2025-01-13 2024-12-31 13F ARCHER AVIATION COM CL A 03945R102 85,123 -9,415 -9.96 830 189.86 0.6657
2024-10-07 2024-09-30 13F ARCHER AVIATION COM CL A 03945R102 94,538 21,348 29.17 286 11.28 0.2250
2024-08-13 2024-06-30 13F ARCHER AVIATION COM CL A 03945R102 73,190 -3,619 -4.71 258 -27.40 0.2070
2024-04-10 2024-03-31 13F ARCHER AVIATION COM CL A 03945R102 76,809 1,251 1.66 355 -23.54 0.2570
2024-01-05 2023-12-31 13F ARCHER AVIATION COM CL A 03945R102 75,558 34,942 86.03 464 125.85 0.3344
2023-10-10 2023-09-30 13F ARCHER AVIATION COM CL A 03945R102 40,616 40,616 206 0.1579
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.