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Jim Simons's Axcelis Technologies, Inc. (ACLS) position

Not anymore: Jim Simons fully exited ACLS in Q1 2026. The position peaked at $15M in Q4 2024.
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Value at exit
$5.4M
Shares at exit
67K
Est. average buy price (i)
$83.73
Quarter-end price
$80.34

Estimated trade prices

Average price in quarters with purchases
$89.36
Average prices in quarters with sales
  • Q2 2025: $57.05 (79K shares sold)
  • Q1 2025: $63.23 (122K shares sold)
  • Q2 2023: $143.96 (18K shares sold)
  • Q3 2022: $64.60 (61K shares sold)
  • Q1 2022: $68.31 (4K shares sold)
  • Q4 2021: $59.25 (43K shares sold)
  • Q3 2021: $43.50 (81K shares sold)
  • Q2 2021: $41.43 (58K shares sold)

ACLS price vs Simons's position

1Y 3Y 5Y MAX
Dates
$30$100$150$20020222023202420252026Sold 81K shares (58.9%) · Q3 2021. Average closing price $43.50 · Price range $34.06–$51.6781KsharessoldSold 43K shares (75.1%) · Q4 2021. Average closing price $59.25 · Price range $45.52–$74.5643KsharessoldSold 4K shares (29.8%) · Q1 2022. Average closing price $68.31 · Price range $57.30–$82.534KsharessoldAdded 94K shares (952.5%) · Q2 2022. Average closing price $57.95 · Price range $51.63–$72.3094KsharespurchasedSold 61K shares (58.4%) · Q3 2022. Average closing price $64.60 · Price range $47.95–$81.7361KsharessoldNew position of 35K shares · Q1 2023. Average closing price $117.49 · Price range $78.20–$133.4535KsharespurchasedSold 18K shares (50.9%) · Q2 2023. Average closing price $143.96 · Price range $113.54–$183.3318KsharessoldAdded 27K shares (160.0%) · Q3 2023. Average closing price $175.88 · Price range $154.04–$200.4827KsharespurchasedNew position of 40K shares · Q3 2024. Average closing price $116.95 · Price range $96.98–$155.0240KsharespurchasedAdded 172K shares (432.7%) · Q4 2024. Average closing price $83.05 · Price range $69.18–$105.10172KsharespurchasedSold 122K shares (57.8%) · Q1 2025. Average closing price $63.23 · Price range $49.67–$74.45122KsharessoldSold 79K shares (87.8%) · Q2 2025. Average closing price $57.05 · Price range $42.42–$70.9279KsharessoldNew position of 67K shares · Q4 2025. Average closing price $83.73 · Price range $74.12–$94.7667Ksharespurchased← Earlier —1 sell
Average closing price · filing quarter
$83.73
Price range · filing quarter
$74.12 – $94.76
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Exited −67K −$5.9M −100.0% 0 May 14, 2026
Q4 2025 New +67K +$5.6M – 67K Feb 12, 2026
Q2 2025 Reduced −79K −$4.5M −87.8% 11K Aug 13, 2025
Q1 2025 Reduced −122K −$7.7M −57.8% 89K May 14, 2025
Q4 2024 Added +172K +$14M +432.7% 212K Feb 13, 2025
Q3 2024 New +40K +$4.7M – 40K Nov 13, 2024
Q3 2023 Added +27K +$4.8M +160.0% 44K Nov 14, 2023
Q2 2023 Reduced −18K −$2.5M −50.9% 17K Aug 11, 2023
Q1 2023 New +35K +$4.1M – 35K May 12, 2023
Q3 2022 Reduced −61K −$3.9M −58.4% 43K Nov 14, 2022
Q2 2022 Added +94K +$5.5M +952.5% 104K Aug 12, 2022
Q1 2022 Reduced −4K −$287K −29.8% 10K May 13, 2022
Q4 2021 Reduced −43K −$2.5M −75.1% 14K Feb 11, 2022
Q3 2021 Reduced −81K −$3.5M −58.9% 57K Nov 12, 2021
Q2 2021 Reduced −58K −$2.4M −29.4% 138K Aug 13, 2021
Q1 2021 First covered – – – 196K May 13, 2021
Data through Q1 2026 · filed May 14, 2026
16 grouped rows from 16 quarters

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Common questions

Does Jim Simons own ACLS?

Not currently. Jim Simons fully exited ACLS in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy ACLS?

Jim Simons 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 Jim Simons sell ACLS?

Yes. Jim Simons reduced and then fully exited ACLS by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of ACLS does Jim Simons own?

None as of the latest filing: Jim Simons has exited ACLS. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for ACLS?

Jim Simons's estimated average buy price for ACLS is $83.73, 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.