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Ken Griffin's Astera Labs, Inc. Common Stock (ALAB) position

Yes: as of Q1 2026, Ken Griffin holds 303K shares of ALAB worth $33M (0.0% of the disclosed portfolio). Last quarter the position was increased by 145.9%. First disclosed Q1 2024.
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Current value
$33M
Shares held
303K
% of portfolio
0.0%
Est. average buy price (i)
$148.12
est. since Q1 2025
Quarter-end price
$109.60

Estimated trade prices

Average price in quarters with purchases
$82.96
Average prices in quarters with sales
  • Q4 2025: $167.28 (203K shares sold)
  • Q2 2025: $79.01 (346K shares sold)

ALAB price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$30$200$400$60020252026New position of 623K shares · Q1 2024. Average closing price $74.10 · Price range $62.03–$85.00623KsharespurchasedNew position of 799K shares · Q3 2024. Average closing price $46.93 · Price range $36.37–$60.50799KsharespurchasedSold 346K shares (90.5%) · Q2 2025. Average closing price $79.01 · Price range $52.94–$99.53346KsharessoldAdded 290K shares (797.8%) · Q3 2025. Average closing price $164.43 · Price range $88.57–$251.88290KsharespurchasedSold 203K shares (62.3%) · Q4 2025. Average closing price $167.28 · Price range $139.29–$224.19203KsharessoldAdded 179K shares (145.9%) · Q1 2026. Average closing price $142.43 · Price range $100.27–$187.67179Ksharespurchased
Average closing price · filing quarter
$142.43
Price range · filing quarter
$100.27 – $187.67
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +179K +$26M +145.9% 303K May 15, 2026
Q4 2025 Reduced −203K −$34M −62.3% 123K Feb 17, 2026
Q3 2025 Added +290K +$48M +797.8% 326K Nov 14, 2025
Q2 2025 Reduced −346K −$27M −90.5% 36K Aug 14, 2025
Q1 2025 First covered – – – 382K May 15, 2025
Q4 2024 First covered – – – 111K Feb 14, 2025
Q3 2024 New +799K +$38M – 799K Nov 14, 2024
Q1 2024 New +623K +$46M – 623K May 15, 2024
Data through Q1 2026 · filed May 15, 2026
8 grouped rows from 8 quarters

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Common questions

Does Ken Griffin own ALAB?

Yes. As of Q1 2026, Ken Griffin disclosed 303K shares of ALAB, worth $33M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy ALAB?

Ken Griffin first disclosed a ALAB position in Q1 2024; 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 ALAB?

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

How many shares of ALAB does Ken Griffin own?

Ken Griffin disclosed 303K shares of ALAB 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 ALAB?

Ken Griffin began building the ALAB position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. 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.