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 JS
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Detailed Insider History for:
AXCELIS TECHNOLOGIES INC: ACLS
Price: 5/22/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$156.94 $171.61 $55.93 $4,823 31 731 0.0% 14.1% 111.12% 0.75%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Industrial And Commercial Machinery And Computer Equipment Special Industry Machinery, N E C
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
EVANS EILEEN
VP,GC,SEC
S
$143,998
926
---
5/22/26
---
$155.51
31,295
-2.9
D
R
5/22/26 - 5:05:08 pm
2
    
 
BLUMENSTOCK GERALD M
VP
S
$177,285
1,161
---
5/21/26
---
$152.70
20,493
-5.4
D
R
5/22/26 - 5:05:05 pm
3
    
 
TATNALL CHRISTOPHER
VP,OO
S
$174,609
1,166
---
5/20/26
---
$149.75
27,627
-4.0
D
R
5/21/26 - 5:05:18 pm
4
    
 
GRAVES GREGORY B
DIR
S
$456,697
3,225
---
5/19/26
$141.41
$142.51
5,473
-37.1
D
R
5/20/26 - 5:05:21 pm
5
1y
12
33%
25%
6
KURTZWEIL JOHN T
DIR
S
$485,771
3,500
---
5/19/26
---
$138.79
32,990
-9.6
D
R
5/20/26 - 5:05:19 pm
6
    
 
QUIRK JEANNE
DIR
S
$250,854
1,789
---
5/19/26
---
$140.22
11,400
-13.6
D
R
5/20/26 - 5:05:17 pm
7
    
 
SUTTON TODD
VP,CT
JS
$26,908
184
---
5/18/26
---
$146.24
8,360
-2.2
D
R
5/20/26 - 5:05:14 pm
8
    
 
MAHONEY ROBERT JOHN
VP,OO
JS
$45,627
312
---
5/18/26
---
$146.24
15,565
-2.0
D
R
5/20/26 - 5:05:11 pm
9
    
 
REDINBO GREG
VP,SO
JS
$27,786
190
---
5/18/26
---
$146.24
35,024
-0.5
D
R
5/20/26 - 5:05:09 pm
10
    
 
LOW RUSSELL
PR,CEO,DIR
JS
$103,977
711
---
5/18/26
---
$146.24
154,900
-0.5
D
R
5/20/26 - 5:05:07 pm
11
    
 
SUTTON TODD
VP,CT
JS
$68,434
441
---
5/15/26
---
$155.18
8,544
-4.9
D
R
5/19/26 - 5:05:18 pm
12
    
 
SUTTON TODD
VP,CT
JB
---
1,168
---
5/15/26
---
---
8,985
14.9
D
R
5/19/26 - 5:05:18 pm
13
    
 
RYZHIK DAVID
VP,CFO
JS
$35,071
226
---
5/15/26
---
$155.18
10,031
-2.2
D
R
5/19/26 - 5:05:16 pm
14
    
 
RYZHIK DAVID
VP,CFO
JB
---
3,115
---
5/15/26
---
---
10,257
43.6
D
R
5/19/26 - 5:05:16 pm
15
    
 
MAHONEY ROBERT JOHN
VP,OO
JS
$120,420
776
---
5/15/26
---
$155.18
15,877
-4.7
D
R
5/19/26 - 5:05:14 pm
16
    
 
MAHONEY ROBERT JOHN
VP,OO
JB
---
3,894
---
5/15/26
---
---
16,653
30.5
D
R
5/19/26 - 5:05:14 pm
17
    
 
BLUMENSTOCK GERALD M
VP
JS
$168,991
1,089
---
5/15/26
---
$155.18
21,654
-4.8
D
R
5/19/26 - 5:05:12 pm
18
    
 
BLUMENSTOCK GERALD M
VP
JB
---
5,450
---
5/15/26
---
---
22,743
31.5
D
R
5/19/26 - 5:05:12 pm
19
    
 
TATNALL CHRISTOPHER
VP,OO
JS
$195,372
1,259
---
5/15/26
---
$155.18
28,793
-4.2
D
R
5/19/26 - 5:05:10 pm
20
    
 
TATNALL CHRISTOPHER
VP,OO
JB
---
7,008
---
5/15/26
---
---
30,052
30.4
D
R
5/19/26 - 5:05:10 pm
21
    
 
REDINBO GREG
VP,SO
JS
$130,196
839
---
5/15/26
---
$155.18
35,214
-2.3
D
R
5/19/26 - 5:05:08 pm
22
    
 
REDINBO GREG
VP,SO
JB
---
6,230
---
5/15/26
---
---
36,053
20.9
D
R
5/19/26 - 5:05:08 pm
23
    
 
EVANS EILEEN
VP,GC,SEC
JS
$134,541
867
---
5/15/26
---
$155.18
32,221
-2.6
D
R
5/19/26 - 5:05:06 pm
24
    
 
EVANS EILEEN
VP,GC,SEC
JB
---
7,786
---
5/15/26
---
---
33,088
30.8
D
R
5/19/26 - 5:05:06 pm
25
    
 
LOW RUSSELL
PR,CEO,DIR
JS
$1,069,345
6,891
---
5/15/26
---
$155.18
155,611
-4.2
D
R
5/19/26 - 5:05:04 pm
26
    
 
LOW RUSSELL
PR,CEO,DIR
JB
---
38,932
---
5/15/26
---
---
162,502
31.5
D
R
5/19/26 - 5:05:04 pm
27
    
 
TITINGER JORGE
DIR
JB
---
1,440
---
5/15/26
---
---
5,917
32.2
D
R
5/18/26 - 5:05:16 pm
28
    
 
ST DENNIS THOMAS
DIR
JB
---
1,440
---
5/15/26
---
---
18,595
8.4
D
R
5/18/26 - 5:05:15 pm
29
    
 
SAYINER NECIP
DIR
JB
---
1,440
---
5/15/26
---
---
8,698
19.8
D
R
5/18/26 - 5:05:14 pm
30
    
 
QUIRK JEANNE
DIR
JB
---
1,440
---
5/15/26
---
---
13,189
12.3
D
R
5/18/26 - 5:05:10 pm
31
    
 
KURTZWEIL JOHN T
DIR
JB
---
1,440
---
5/15/26
---
---
36,490
4.1
D
R
5/18/26 - 5:05:08 pm
32
    
 
GRAVES GREGORY B
DIR
JB
---
1,440
---
5/15/26
---
---
8,698
19.8
D
R
5/18/26 - 5:05:07 pm
33
    
 
CHIU TZU YIN
DIR
JB
---
1,440
---
5/15/26
---
---
11,843
13.8
D
R
5/18/26 - 5:05:05 pm
34
    
 
SUTTON TODD
VP,CT
S
$421,865
2,574
---
5/14/26
---
$163.89
7,817
-24.8
D
R
5/15/26 - 5:05:08 pm
35
    
 
BLUMENSTOCK GERALD M
VP
S
$164,750
1,015
---
5/14/26
---
$162.31
17,293
-5.5
D
R
5/15/26 - 5:05:05 pm
36
1y
4
75%
-4%
8
TITINGER JORGE
DIR
S
$328,280
2,000
---
5/13/26
---
$164.14
4,477
-30.9
D
R
5/14/26 - 5:05:07 pm
37
    
 
REDINBO GREG
VP,SO
S
$463,731
2,883
---
5/13/26
---
$160.85
29,823
-8.8
D
R
5/14/26 - 5:05:05 pm
38
    
 
MAHONEY ROBERT JOHN
VP,OO
S
$363,538
2,258
---
5/12/26
---
$161.00
12,759
-15.0
D
R
5/13/26 - 5:05:06 pm
39
    
 
LOW RUSSELL
PR,CEO,DIR
AS
$1,170,609
7,468
---
5/6/26
---
$156.75
123,570
-5.7
D
R,10b
5/7/26 - 5:05:05 pm
40
    
 
LOW RUSSELL
PR,CEO,DIR
AS
$172,742
1,244
---
5/1/26
---
$138.86
131,038
-0.9
D
R,10b
5/4/26 - 5:05:06 pm
41
    
 
TATNALL CHRISTOPHER
VP,OO
JS
$118,835
907
---
4/20/26
---
$131.02
23,044
-3.8
D
R
4/21/26 - 5:05:05 pm
42
    
 
LOW RUSSELL
PR,CEO,DIR
AS
$117,011
1,244
---
4/1/26
---
$94.06
132,282
-0.9
D
R,10b
4/2/26 - 5:05:09 pm
43
    
 
LOW RUSSELL
PR,CEO,DIR
AS
$111,960
1,244
---
3/24/26
---
$90.00
133,526
-0.9
D
R,10b
3/26/26 - 5:05:07 pm
44
    
 
SUTTON TODD
VP,CT
3
---
---
---
3/12/26
---
---
10,391
---
D
R
3/25/26 - 5:26:52 pm
45
    
 
RYZHIK DAVID
VP,CFO
3
---
---
---
3/12/26
---
---
7,142
---
D
R
3/24/26 - 5:05:53 pm
46
    
 
MAHONEY ROBERT JOHN
VP,OO
JS
$49,610
573
---
3/2/26
---
$86.58
14,633
-3.8
D
R
3/3/26 - 5:05:22 pm
47
    
 
BLUMENSTOCK GERALD M
VP
JS
$97,056
1,121
---
3/2/26
---
$86.58
17,540
-6.0
D
R
3/3/26 - 5:05:20 pm
48
    
 
TATNALL CHRISTOPHER
VP,OO
JS
$97,056
1,121
---
3/2/26
---
$86.58
23,183
-4.6
D
R
3/3/26 - 5:05:19 pm
49
    
 
REDINBO GREG
VP,SO
JS
$62,597
723
---
3/2/26
---
$86.58
31,938
-2.2
D
R
3/3/26 - 5:05:17 pm
50
    
 
COOGAN JAMES GORDON
VP,CFO
JS
$155,844
1,800
---
3/2/26
---
$86.58
37,144
-4.6
D
R
3/3/26 - 5:05:10 pm
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