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Ken Griffin's Axcelis Technologies, Inc. (ACLS) position

Yes: as of Q1 2026, Ken Griffin holds 5K shares of ACLS worth $419K (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$419K
Shares held
5K
% of portfolio
0.0%
Est. average buy price (i)
$80.29
Quarter-end price
$93.08

Estimated trade prices

Average price in quarters with purchases
$88.30
Average prices in quarters with sales
  • Q1 2026: $88.53 (172K shares sold)
  • Q3 2025: $80.54 (228K shares sold)
  • Q1 2025: $63.23 (109K shares sold)
  • Q3 2024: $116.95 (82K shares sold)
  • Q3 2023: $175.88 (11K shares sold)
  • Q2 2023: $143.96 (142K shares sold)
  • Q4 2022: $70.45 (1K shares sold)
  • Q3 2022: $64.60 (4K shares sold)
  • Q2 2022: $57.95 (7K shares sold)
  • Q1 2022: $68.31 (18K shares sold)
  • Q4 2021: $59.25 (15 shares sold)
  • Q3 2021: $43.50 (59K shares sold)

ACLS price vs Griffin's position

Dates
$50$100$150$2002026Sold 228K shares (89.5%) · Q3 2025. Average closing price $80.54 · Price range $67.69–$100.44228KsharessoldAdded 149K shares (556.2%) · Q4 2025. Average closing price $83.73 · Price range $74.12–$94.76149KsharespurchasedSold 172K shares (97.4%) · Q1 2026. Average closing price $88.53 · Price range $78.79–$100.85172Ksharessold← Earlier —6 purchases, 10 sells
Average closing price · filing quarter
$88.53
Price range · filing quarter
$78.79 – $100.85

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −172K −$15M −97.4% 5K May 15, 2026
Q4 2025 Added +149K +$12M +556.2% 176K Feb 17, 2026
Q3 2025 Reduced −228K −$18M −89.5% 27K Nov 14, 2025
Q2 2025 Added +232K +$13M +1,051.9% 254K Aug 14, 2025
Q1 2025 Reduced −109K −$6.9M −83.2% 22K May 15, 2025
Q4 2024 Added +52K +$4.4M +66.2% 132K Feb 14, 2025
Q3 2024 Reduced −82K −$9.6M −50.9% 79K Nov 14, 2024
Q2 2024 Added +49K +$5.7M +44.2% 161K Aug 14, 2024
Q1 2024 New +112K +$13M 112K May 15, 2024
Q3 2023 Reduced −11K −$1.9M −39.8% 16K Nov 14, 2023
Q2 2023 Reduced −142K −$20M −83.9% 27K Aug 14, 2023
Q1 2023 Added +166K +$20M +5,202.5% 169K May 15, 2023
Q4 2022 Reduced −1K −$95K −29.8% 3K Feb 14, 2023
Q3 2022 Reduced −4K −$288K −49.5% 5K Nov 14, 2022
Q2 2022 Reduced −7K −$418K −44.5% 9K Aug 15, 2022
Q1 2022 Reduced −18K −$1.2M −52.3% 16K May 16, 2022
Q4 2021 Reduced −15 −$889 0.0% 34K Feb 14, 2022
Q3 2021 Reduced −59K −$2.6M −63.4% 34K Nov 15, 2021
Q2 2021 Added +30K +$1.2M +47.9% 93K Aug 16, 2021
Q1 2021 First covered 63K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
20 grouped rows from 20 quarters

More Griffin positions

Common questions

Does Ken Griffin own ACLS?

Yes. As of Q1 2026, Ken Griffin disclosed 5K shares of ACLS, worth $419K. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy ACLS?

Ken Griffin held ACLS since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell ACLS?

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

How many shares of ACLS does Ken Griffin own?

Ken Griffin disclosed 5K shares of ACLS 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 ACLS?

Ken Griffin's estimated average buy price for ACLS is $80.29, 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.