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Ken Griffin's Aehr Test Systems (AEHR) position

Yes: as of Q1 2026, Ken Griffin holds 141K shares of AEHR worth $5.2M (0.0% of the disclosed portfolio). Last quarter the position was reduced by 36.0%. First disclosed Q2 2021.
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Current value
$5.2M
Shares held
141K
% of portfolio
0.0%
Est. average buy price (i)
$21.65
Quarter-end price
$37.08

Estimated trade prices

Average price in quarters with purchases
$20.21
Average prices in quarters with sales
  • Q1 2026: $31.99 (79K shares sold)
  • Q4 2025: $24.19 (2K shares sold)
  • Q3 2024: $14.46 (347K shares sold)
  • Q1 2024: $16.67 (173K shares sold)
  • Q4 2022: $21.39 (84K shares sold)
  • Q3 2022: $13.46 (1K shares sold)
  • Q2 2022: $8.31 (31K shares sold)
  • Q4 2021: $19.54 (338K shares sold)

AEHR price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$5$50$100$15020222023202420252026Sold 338K shares (96.8%) · Q4 2021. Average closing price $19.54 · Price range $12.60–$25.72338KsharessoldAdded 190K shares (over 1,000%) · Q1 2022. Average closing price $12.78 · Price range $9.06–$23.39190KsharespurchasedSold 31K shares (15.7%) · Q2 2022. Average closing price $8.31 · Price range $7.03–$10.6431KsharessoldSold 1K shares (0.8%) · Q3 2022. Average closing price $13.46 · Price range $6.94–$18.501KsharessoldSold 84K shares (50.1%) · Q4 2022. Average closing price $21.39 · Price range $13.87–$27.1084KsharessoldAdded 46K shares (499.0%) · Q2 2023. Average closing price $32.81 · Price range $23.90–$43.0246KsharespurchasedAdded 75K shares (136.8%) · Q3 2023. Average closing price $46.36 · Price range $38.19–$53.6975KsharespurchasedAdded 138K shares (106.1%) · Q4 2023. Average closing price $29.17 · Price range $22.96–$46.76138KsharespurchasedSold 173K shares (64.6%) · Q1 2024. Average closing price $16.67 · Price range $11.17–$24.95173KsharessoldAdded 257K shares (271.9%) · Q2 2024. Average closing price $11.65 · Price range $10.17–$13.85257KsharespurchasedSold 347K shares (98.4%) · Q3 2024. Average closing price $14.46 · Price range $10.71–$20.61347KsharessoldNew position of 223K shares · Q3 2025. Average closing price $21.65 · Price range $13.29–$33.63223KsharespurchasedSold 2K shares (1.1%) · Q4 2025. Average closing price $24.19 · Price range $19.40–$33.252KsharessoldSold 79K shares (36.0%) · Q1 2026. Average closing price $31.99 · Price range $22.16–$44.0379Ksharessold← Earlier —1 purchase
Average closing price · filing quarter
$31.99
Price range · filing quarter
$22.16 – $44.03
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −79K −$2.5M −36.0% 141K May 15, 2026
Q4 2025 Reduced −2K −$60K −1.1% 221K Feb 17, 2026
Q3 2025 New +223K +$4.8M – 223K Nov 14, 2025
Q3 2024 Reduced −347K −$5.0M −98.4% 6K Nov 14, 2024
Q2 2024 Added +257K +$3.0M +271.9% 352K Aug 14, 2024
Q1 2024 Reduced −173K −$2.9M −64.6% 95K May 15, 2024
Q4 2023 Added +138K +$4.0M +106.1% 267K Feb 14, 2024
Q3 2023 Added +75K +$3.5M +136.8% 130K Nov 14, 2023
Q2 2023 Added +46K +$1.5M +499.0% 55K Aug 14, 2023
Q1 2023 First covered – – – 9K May 15, 2023
Q4 2022 Reduced −84K −$1.8M −50.1% 84K Feb 14, 2023
Q3 2022 Reduced −1K −$18K −0.8% 168K Nov 14, 2022
Q2 2022 Reduced −31K −$262K −15.7% 169K Aug 15, 2022
Q1 2022 Added +190K +$2.4M +1,705.5% 201K May 16, 2022
Q4 2021 Reduced −338K −$6.6M −96.8% 11K Feb 14, 2022
Q3 2021 First covered – – – 349K Nov 15, 2021
Q2 2021 New +27K +$64K – 27K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
17 grouped rows from 17 quarters

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Common questions

Does Ken Griffin own AEHR?

Yes. As of Q1 2026, Ken Griffin disclosed 141K shares of AEHR, worth $5.2M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy AEHR?

Ken Griffin first disclosed a AEHR position in Q2 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell AEHR?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in AEHR. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of AEHR does Ken Griffin own?

Ken Griffin disclosed 141K shares of AEHR as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for AEHR?

Ken Griffin's estimated average buy price for AEHR is $21.65, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.