Ticker · CUSIP 054540208

ACLS

AXCELIS TECHNOLOGIES INC
···Share
Holders (tracked)
16
Combined shares
1,985,757
Combined value
$128.79M
Last close
$118.76
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
16132024Q12025Q4
Price is +83.1% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

24 events
  1. −149,052 shares · 2025Q4
    13F
  2. +149,220 shares · 2025Q4
    13F
  3. +315,947 shares · 2025Q4
    13F
  4. +930 shares · 2025Q4
    13F
  5. +34,079 shares · 2025Q4
    13F
  6. −121,014 shares · 2025Q4
    13F
  7. −131,686 shares · 2025Q4
    13F
  8. +2,700 shares · 2025Q4
    13F
  9. +20,741 shares · 2025Q4
    13F
  10. −2,224 shares · 2025Q4
    13F
  11. +66,899 shares · 2025Q4
    13F
  12. +88,147 shares · 2025Q4
    13F
  13. +5,960 shares · 2025Q4
    13F
  14. +76,085 shares · 2025Q3
    13F
  15. −6,652 shares · 2025Q3
    13F
  16. +154,381 shares · 2025Q3
    13F
  17. +1,272 shares · 2025Q3
    13F
  18. +2,965 shares · 2025Q3
    13F
  19. +2,224 shares · 2025Q3
    13F
  20. −10,899 shares · 2025Q3
    13F
  21. +1,798 shares · 2025Q3
    13F
  22. −62,448 shares · 2025Q3
    13F
  23. −23,461 shares · 2024Q3
    13F
  24. +57,358 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ACLS…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q3$50.17+136.7%$45.5M
Paul Tudor Jones (Tudor Investment)2016Q2$66.87+77.6%$356K
Paul Tudor Jones (Tudor Investment)2016Q2$66.87+77.6%$356K
Renaissance Technologies2016Q3$77.11+54.0%$7.9M
Two Sigma Investments2017Q2$79.57+49.2%$8.5M
Two Sigma Investments2017Q2$79.57+49.2%$8.5M
Steve Cohen (Point72)2025Q4$80.34+47.8%$321K
First Eagle Investment Management2022Q2$80.39+47.7%$16.2M
D.E. Shaw & Co.2016Q3$80.42+47.7%$55.9M
Ken Griffin (Citadel Advisors)2017Q2$81.28+46.1%$3.0M
Ken Griffin (Citadel Advisors)2017Q2$81.28+46.1%$3.0M
Ken Griffin (Citadel Advisors)2017Q2$81.28+46.1%$3.0M
Jeremy Grantham (GMO)2019Q2$86.70+37.0%$38.3M
Izzy Englander (Millennium Mgmt)2017Q1$93.13+27.5%$15.4M
AQR Capital Management2016Q3$101.17+17.4%$4.5M
Norges Bank (Norway SWF)2016Q3$1817.90-93.5%$10.5M

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$5.12B
2022Q2
15
$6.56B
2022Q3
16
$7.2M
2022Q4
14
$533.6M
2023Q1
20
$980.1M
2023Q2
21
$1.41B
2023Q3
19
$1.25B
2023Q4
13
$977.7M
2024Q1
13
$871.1M
2024Q2
14
$1.06B
2024Q3
17
$195.0M
2024Q4
16
$178.2M
2025Q1
14
$79.4M
2025Q2
15
$104.8M
2025Q3
13
$126.2M
2025Q4
16
$128.8M

Who owns ACLS

16 super-investors · 2025Q4
Tracked stake
1.99M
shares
Combined value
$129M
% of shares outstanding
shares-out unknown
Quarter action mix
New5Added8Trim3
#ManagerSharesValue
1D.E. Shaw & Co.470.3K$38M
2Jeremy Grantham
GMO
322.8K$26M
3Ken Griffin
Citadel Advisors
176.0K$14M
4First Eagle Investment Management136.3K$11M
5Izzy Englander
Millennium Mgmt
130.1K$10M
6Norges Bank
Norway SWF
88.1K$7M
7Two Sigma Investments71.2K$6M
8Renaissance Technologies66.9K$5M
9Ken Griffin
Citadel Advisors
46.3K$4M
10AQR Capital Management37.6K$3M
11Ken Griffin
Citadel Advisors
25.5K$2M
12Paul Tudor Jones
Tudor Investment
20.7K$2M
13Two Sigma Investments5.0K$402K
14Paul Tudor Jones
Tudor Investment
3.0K$241K
15Steve Cohen
Point72
2.7K$217K
16T. Rowe Price383.1K$31K

Recent moves

20 transactions
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