Ticker · CUSIP 054540208

ACLS

AXCELIS TECHNOLOGIES INC
···Share
Holders (tracked)
16
Combined shares
1,985,757
Combined value
$159.54M
Last close
$118.73
Quarter
2025Q4
Price · 1Y$118.73+73.95 (+165.14%)H $118.76 · L $44.78 · Avg Vol 638K
$60.00$80.00$100.00$120.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
16132024Q12025Q4
Price is +47.8% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

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

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 each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Paul Tudor Jones (Tudor Investment)2016Q2$66.87+77.6%$356K
Paul Tudor Jones (Tudor Investment)2016Q2$66.87+77.6%$356K
Two Sigma Investments2017Q2$79.57+49.2%$8.5M
Two Sigma Investments2017Q2$79.57+49.2%$8.5M
Renaissance Technologies2016Q3$80.18+48.1%$7.9M
Steve Cohen (Point72)2025Q4$80.34+47.8%$321K
D.E. Shaw & Co.2016Q3$80.42+47.6%$55.8M
First Eagle Investment Management2022Q2$81.20+46.2%$16.2M
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
T. Rowe Price2016Q3$82.64+43.7%$45.5M
Jeremy Grantham (GMO)2019Q2$90.48+31.2%$38.3M
Izzy Englander (Millennium Mgmt)2017Q1$93.13+27.5%$15.4M
AQR Capital Management2016Q3$101.74+16.7%$4.5M
Norges Bank (Norway SWF)2016Q3$1817.90-93.5%$10.5M

Who moved on this name in 2025Q4

Position changes 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
$440.6M
2022Q4
14
$575.0M
2023Q1
20
$1.07B
2023Q2
21
$1.50B
2023Q3
19
$1.33B
2023Q4
13
$1.04B
2024Q1
13
$922.7M
2024Q2
14
$1.14B
2024Q3
17
$250.2M
2024Q4
16
$214.8M
2025Q1
14
$105.6M
2025Q2
15
$141.6M
2025Q3
13
$178.1M
2025Q4
16
$159.5M

Who owns ACLS

16 super-investors · 2025Q4
Tracked stake
1.99M
shares
Combined value
$160M
% of shares outstanding
shares-out unknown
Quarter action mix
New5Added8Trim3
#ManagerSharesValue
1D.E. Shaw & Co.470.3K$38M
2T. Rowe Price383.1K$31M
3Jeremy Grantham
GMO
322.8K$26M
4Ken Griffin
Citadel Advisors
176.0K$14M
5First Eagle Investment Management136.3K$11M
6Izzy Englander
Millennium Mgmt
130.1K$10M
7Norges Bank
Norway SWF
88.1K$7M
8Two Sigma Investments71.2K$6M
9Renaissance Technologies66.9K$5M
10Ken Griffin
Citadel Advisors
46.3K$4M
11AQR Capital Management37.6K$3M
12Ken Griffin
Citadel Advisors
25.5K$2M
13Paul Tudor Jones
Tudor Investment
20.7K$2M
14Two Sigma Investments5.0K$402K
15Paul Tudor Jones
Tudor Investment
3.0K$241K
16Steve Cohen
Point72
2.7K$217K

Recent moves

20 transactions
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