BlackRock, Inc. ownership in AYB / Aehr Test Systems, Inc.

Aehr Test Systems, Inc.

DE ˙ DB ˙ US00760J1088

95,60 € ↑2,10 (2,25%)

2026-06-05
CENA AKCJI

Security	DE:AYB / Aehr Test Systems, Inc.
Institution	BlackRock, Inc.
Latest Disclosed Ownership	2,077,807 shares
Ownership	7.20%

2024-01-26 - BlackRock, Inc. has filed an SC 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,077,807 shares of Aehr Test Systems, Inc. (DE:AYB). This represents 7.2 percent ownership of the company.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2024-01-26	2024-01-26	13G		2,077,807		7.20

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-13	2026-03-31	13F	AEHR TEST SYS	COM	00760J108	2,286,899	159,794	7.51	84,798	97.45	0.0015
2026-02-12	2025-12-31	13F	AEHR TEST SYS	COM	00760J108	2,127,105	124,772	6.23	42,946	-28.77	0.0007
2025-11-12	2025-09-30	13F	AEHR TEST SYS	COM	00760J108	2,002,333	-49,839	-2.43	60,290	127.22	0.0011
2025-08-12	2025-06-30	13F	AEHR TEST SYS	COM	00760J108	2,052,172	-7,465	-0.36	26,535	76.73	0.0005
2025-05-02	2025-03-31	13F	AEHR TEST SYS	COM	00760J108	2,059,637	13,033	0.64	15,015	-55.89	0.0003
2025-02-07	2024-12-31	13F	AEHR TEST SYS	COM	00760J108	2,046,604	24,835	1.23	34,035	31.01	0.0007
2024-11-13	2024-09-30	13F	AEHR TEST SYS	COM	00760J108	2,021,769	118,134	6.21	25,980	22.18	0.0005
2024-08-13	2024-06-30	13F	AEHR TEST SYS	COM	00760J108	1,903,635	-131,869	-6.48	21,264	-15.76	0.0005
2024-05-10	2024-03-31	13F	AEHR TEST SYS	COM	00760J108	2,035,504	-42,303	-2.04	25,240	-54.21	0.0006
2024-02-13	2023-12-31	13F	AEHR TEST SYS	COM	00760J108	2,077,807	240,516	13.09	55,124	-34.35	0.0014
2023-11-13	2023-09-30	13F	AEHR TEST SYS	COM	00760J108	1,837,291	6,736	0.37	83,964	11.20	0.0024
2023-08-11	2023-06-30	13F	AEHR TEST SYS	COM	00760J108	1,830,555	1,312,565	253.40	75,510	369.94	0.0021
2023-05-12	2023-03-31	13F	AEHR TEST SYS	COM	00760J108	517,990	16,652	3.32	16,068	59.47	0.0005
2023-02-13	2022-12-31	13F	AEHR TEST SYS	COM	00760J108	501,338	116,956	30.43	10,077	85.90	0.0003
2022-11-14	2022-09-30	13F	AEHR TEST SYS	COM	00760J108	384,382	10,145	2.71	5,420	93.09	0.0002
2022-08-12	2022-06-30	13F	AEHR TEST SYS	COM	00760J108	374,237	-3,886	-1.03	2,807	-26.94	0.0001
2022-05-12	2022-03-31	13F	AEHR TEST SYS	COM	00760J108	378,123	3,455	0.92	3,842	-57.59	0.0001
2022-02-10	2021-12-31	13F	AEHR TEST SYS	COM	00760J108	374,668	201,607	116.49	9,060	283.41	0.0002
2021-11-09	2021-09-30	13F	AEHR TEST SYS	COM	00760J108	173,061	153,252	773.65	2,363	4,275.93	0.0001
2021-08-11	2021-06-30	13F	AEHR TEST SYS	COM	00760J108	19,809	-60,902	-75.46	54	-73.40	0.0000
2021-05-07	2021-03-31	13F	AEHR TEST SYS	COM	00760J108	80,711	7,934	10.90	203	10.33	0.0000
2021-02-05	2020-12-31	13F	AEHR TEST SYS	COM	00760J108	72,777	-2,413	-3.21	184	76.92	0.0000
2020-11-06	2020-09-30	13F	AEHR TEST SYSTEMS	COM	00760J108	75,190	-1,414	-1.85	104	-30.67	0.0000
2020-08-14	2020-06-30	13F	AEHR TEST SYSTEMS	COM	00760J108	76,604	11,261	17.23	150	37.61	0.0000
2020-05-01	2020-03-31	13F	AEHR TEST SYSTEMS	COM	00760J108	65,343	-114	-0.17	109	-16.79	0.0000
2020-02-13	2019-12-31	13F	AEHR TEST SYSTEMS	COM	00760J108	65,457	-290	-0.44	131	11.02	0.0000
2019-11-08	2019-09-30	13F	AEHR TEST SYSTEMS	COM	00760J108	65,747	-2,188	-3.22	118	5.36	0.0000
2019-08-22	2019-06-30	13F/A-1	AEHR TEST SYSTEMS	COM	00760J108	67,935	8,580	14.46	112	36.59	0.0000
2019-08-13	2019-06-30	13F	AEHR TEST SYSTEMS	COM	00760J108	67,935	8,580		112
2019-05-09	2019-03-31	13F	AEHR TEST SYSTEMS	COM	00760J108	59,355	-2,388	-3.87	82	-5.75	0.0000
2019-02-08	2018-12-31	13F	AEHR TEST SYSTEMS	COM	00760J108	61,743	6,511	11.79	87	-29.27	0.0000
2018-11-09	2018-09-30	13F	AEHR TEST SYSTEMS	COM	00760J108	55,232	2,168	4.09	123	-0.81	0.0000
2018-08-09	2018-06-30	13F	AEHR TEST SYSTEMS	COM	00760J108	53,064	-13,065	-19.76	124	-16.78	0.0000
2018-05-09	2018-03-31	13F	AEHR TEST SYSTEMS	COM	00760J108	66,129	13,449	25.53	149	4.20	0.0000
2018-02-09	2017-12-31	13F	AEHR TEST SYSTEMS	COM	00760J108	52,680	2,272	4.51	143	-30.58	0.0000
2017-11-14	2017-09-30	13F	AEHR TEST SYSTEMS	COM	00760J108	50,408	-1,677	-3.22	206	5.64	0.0000
2017-08-10	2017-06-30	13F	AEHR TEST SYSTEMS	COM	00760J108	52,085	47,026	929.55	195	712.50	0.0000
2017-05-12	2017-03-31	13F	AEHR TEST SYSTEMS	COM	00760J108	5,059	5,059		24		0.0000

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.