Skip to main content
AEHR logo

AEHR · Aehr Test Systems

Track AEHR — free
$77.33 -1.94 (-2.45%)
Market Cap
$2.59B
Shares
32.62M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 268
Total Value: $2,881,554,820
Total Shares: 30,000,284
Showing 1–100 of 290 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 268 13F filers · Δ vs Mar 31, 2026
Top Holder
8.9%
Sep 2023 → Jun 2026 · range 8.6% – 16.2%
+0.2 pts
Top 5
33.4%
Sep 2023 → Jun 2026 · range 30.9% – 53.9%
+0.1 pts
Top 10
51.2%
Sep 2023 → Jun 2026 · range 47.7% – 68.9%
−1.8 pts
HHI
354
Sep 2023 → Jun 2026 · range 325 – 706
Broadly held−18

Quarterly Activity

vs Mar 31, 2026
New
105
Increased
77
Decreased
73
Sold Out
32
Unchanged
13
Holder count: +73
Institutional value: +192.8%
Shares held: +13.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 290
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1040470 CUSIP 00760J108 13F (30d) 217 filings 215 filers Visit website Investor relations