Aehr Test Systems, Inc.
DE ˙ DB ˙ US00760J1088
95,60 € ↑2,10 (2,25%)
2026-06-05
AKTIENPREIS
SecurityDE:AYB / Aehr Test Systems, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership36,420 shares
Latest Disclosed Value $ 735,320
Alliancebernstein L.p. ownership in AYB / Aehr Test Systems, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 36,420 shares of Aehr Test Systems, Inc. (DE:AYB) valued at $1,103,526 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 36,420 shares of Aehr Test Systems, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $3,481,752 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)
2026-05-15 2026-03-31 13F AEHR TEST SYS COM 00760J108 36,420 0 0.00 735 0.00 0.0002
2026-02-17 2025-12-31 13F AEHR TEST SYS COM 00760J108 36,420 0 0.00 735 -32.94 0.0002
2025-11-14 2025-09-30 13F AEHR TEST SYS COM 00760J108 36,420 11,900 48.53 1,097 245.74 0.0003
2025-08-14 2025-06-30 13F AEHR TEST SYS COM 00760J108 24,520 8,500 53.06 317 173.28 0.0001
2025-05-15 2025-03-31 13F AEHR TEST SYS COM 00760J108 16,020 0 0.00 117 -56.39 0.0000
2025-02-12 2024-12-31 13F AEHR TEST SYS COM 00760J108 16,020 -18,110 -53.06 266 -39.27 0.0001
2024-11-14 2024-09-30 13F AEHR TEST SYS COM 00760J108 34,130 -11,970 -25.97 439 -14.79 0.0001
2024-08-14 2024-06-30 13F AEHR TEST SYS COM 00760J108 46,100 22,360 94.19 515 74.83 0.0002
2024-05-14 2024-03-31 13F AEHR TEST SYS COM 00760J108 23,740 -2,770 -10.45 294 -58.18 0.0001
2024-02-14 2023-12-31 13F AEHR TEST SYS COM 00760J108 26,510 -140 -0.53 703 -42.24 0.0003
2023-11-14 2023-09-30 13F AEHR TEST SYS COM 00760J108 26,650 0 0.00 1,218 10.74 0.0005
2023-08-15 2023-06-30 13F AEHR TEST SYS COM 00760J108 26,650 26,650 1,099 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.