Aehr Test Systems AEHR Institutional Ownership

NASDAQ AEHR

$94.69 +0.88 (+0.94%)

As of: Sep 11, 2026 · 3:59 PM EDT

Institutions by Trading Activity

263 Institutions

Increased 179 68.1%

Unchanged 13 4.9%

Reduced 71 27.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

76.57%

▲+3.37 pp QoQ

Shares Held by Institutions

23.48Mn

of 30.67Mn outstanding

▲+11.78% QoQ

Shares Outstanding

30.67Mn

7.18Mn held outside 13F filers

Institutional Investors

263

filed 13F for Jun 2026

▲+73 vs prior quarter

Net Shares Added (QoQ)

+2.47Mn

accumulated since last quarter

Value of Holdings

$2.03Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Aehr Test Systems (NASDAQ:AEHR) appears in 263 institutional 13F filings for the quarter ending June 2026.

These investors held 76.6% of outstanding shares in June 2026, up from 73.2% in March 2026.
They increased total shares held in Aehr Test Systems by 11.78% from last quarter, and the number of investors in AEHR increased 121.01% annually.
During the quarter, 179 of these 263 funds increased positions in AEHR, 71 reduced exposure, and 13 held steady.
Combined, these investors held 23.48Mn shares in AEHR for June 2026, up by 2.47Mn shares quarter on quarter, and up 5.37Mn shares year over year.
BlackRock, Inc. holds the largest position in AEHR at 2.66Mn shares as of June 30, 2026, or 8.67% of shares outstanding.
Leading buyers of Aehr Test Systems shares for the quarter ending June 2026 were TWO SIGMA INVESTMENTS, LP (950.24K), D. E. Shaw & Co., Inc. (835.78K), Jpmorgan Chase & Co (542.21K), JANE STREET GROUP, LLC (476.48K), Connor, Clark & Lunn Investment Management Ltd. (451.95K).
Top sellers of AEHR stock for the quarter ending June 2026 included AWM Investment Company, Inc. (1.22Mn), FMR LLC (1.14Mn), PRICE T ROWE ASSOCIATES INC /MD/ (842.32K), BAILLIE GIFFORD & CO (797.14K), Goldman Sachs Group Inc (452.01K).
Aehr Test Systems's 10 largest shareholders as of June 2026 include BlackRock, Inc. (2.66Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.32Mn), D. E. Shaw & Co., Inc. (1.18Mn), TWO SIGMA INVESTMENTS, LP (1.16Mn), FMR LLC (1.01Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (966.66K), GEODE CAPITAL MANAGEMENT, LLC (875.5K), Goldman Sachs Group Inc (810.04K), JANE STREET GROUP, LLC (753.52K), Jpmorgan Chase & Co (732.55K) per Business Quant data.

Form 13F Holdings

263 Institutional Holders

Report period 30 Jun, 2026

Total shares held 23.48Mn

Of outstanding 76.57%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	2,659,542	8.67%	▲372,643	+16.29%	$255.48Mn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,320,350	4.31%	▲38,493	+3.00%	$126.83Mn
3	D. E. Shaw & Co., Inc.	0001009207	1,177,421	3.84%	▲835,783	+244.64%	$113.10Mn
4	TWO SIGMA INVESTMENTS, LP	0001179392	1,164,614	3.80%	▲950,242	+443.27%	$111.87Mn
5	FMR LLC	0000315066	1,006,830	3.28%	▼1,135,809	-53.01%	$96.72Mn
6	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	966,659	3.15%	▲48,783	+5.31%	$92.86Mn
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	875,505	2.85%	▲149,794	+20.64%	$84.11Mn
8	Goldman Sachs Group Inc	0000886982	810,036	2.64%	▼452,007	-35.82%	$77.81Mn
9	JANE STREET GROUP, LLC	0001595888	753,523	2.46%	▲476,478	+171.99%	$72.38Mn
10	Jpmorgan Chase & Co	0000019617	732,547	2.39%	▲542,208	+284.86%	$69.55Mn
11	State Street Corp	0000093751	712,926	2.32%	▲89,620	+14.38%	$68.48Mn
12	Connor, Clark & Lunn Investment Management Ltd.	0001596800	670,758	2.19%	▲451,949	+206.55%	$64.43Mn
13	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	507,035	1.65%	▼842,316	-62.42%	$48.71K
14	Morgan Stanley	0000895421	480,400	1.57%	▲314,727	+189.97%	$46.15Mn
15	NEXT CENTURY GROWTH INVESTORS LLC	0001134007	410,731	1.34%	▼344,006	-45.58%	$39.45Mn
16	CITADEL ADVISORS LLC	0001423053	400,732	1.31%	▲259,441	+183.62%	$38.49Mn
17	MARSHALL WACE, LLP	0001318757	382,738	1.25%	▲372,527	+3,648.29%	$36.77Mn
18	AWM Investment Company, Inc.	0001535264	374,808	1.22%	▼1,219,163	-76.49%	$36.00Mn
19	T. Rowe Price Investment Management, Inc.	0001897612	318,127	1.04%	▲318,127	0.00%	$30.56K
20	Invesco Ltd.	0000914208	296,226	0.97%	▲10,501	+3.68%	$28.46Mn

Showing 1 to 20 of 263 holders