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 S  AS  JS*  OS  OS*  3
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 JS
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Detailed Insider History for:
DUOLINGO INC: DUOL
Price: 10/31/25 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
$270.64 $544.93 $256.63 $12,401 40 1,801 0.0% 10.9% 99.75% 0.79%
Exch Sector Industry Sub-Industry
NasdaqGS Services Business Services Services- Prepackaged Software
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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
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,147,198
10,000
---
10/20/25
$305.86
$324.10
72
-99.3
D
R,10b
10/22/25 - 8:16:42 pm
2
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
10/20/25
---
$38.08
10,072
13,888.9
D
R,10b
10/22/25 - 8:16:42 pm
3
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,216,303
10,000
---
10/6/25
$317.31
$328.75
72
-99.3
D
10b
10/7/25 - 4:13:22 pm
4
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
10/6/25
---
$38.08
10,072
13,888.9
D
10b
10/7/25 - 4:13:22 pm
5
    
 
GLANCE NATALIE
O
AS
$1,025,265
3,283
---
10/1/25
$300.56
$319.76
116,171
-2.7
D
10b
10/6/25 - 8:13:10 am
6
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$2,889,373
10,000
---
9/19/25
$286.77
$290.78
72
-99.3
D
10b
9/22/25 - 4:17:34 pm
7
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
9/19/25
---
$38.08
10,072
13,888.9
D
10b
9/22/25 - 4:17:34 pm
8
    
 
CHEN STEPHEN C
GC
OB
$24,514
1,700
---
9/18/25
---
$14.42
34,338
5.2
D
---
9/19/25 - 9:36:10 pm
9
    
 
MEESE ROBERT
O
OB
$40,750
5,000
---
9/11/25
---
$8.15
125,080
4.2
D
---
9/12/25 - 5:31:34 pm
10
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$2,685,462
10,000
---
9/5/25
$264.75
$271.57
72
-99.3
D
10b
9/9/25 - 8:09:16 am
11
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
9/5/25
---
$38.08
10,072
13,888.9
D
10b
9/9/25 - 8:09:16 am
12
    
 
CHEN STEPHEN C
GC
AS
$486,860
1,515
---
8/26/25
---
$321.36
32,638
-4.4
D
10b
8/28/25 - 4:37:43 pm
13
    
 
SKARUPPA MATTHEW
CFO
OS
$3,471,322
10,937
---
8/26/25
$311.38
$321.33
43,345
-20.1
D
10b
8/28/25 - 4:37:06 pm
14
    
 
SKARUPPA MATTHEW
CFO
OE
$19,871
1,378
---
8/26/25
---
$14.42
54,282
2.6
D
10b
8/28/25 - 4:37:06 pm
15
    
 
HACKER SEVERIN
CTO,F,DIR,BO
JS
---
10,000
---
8/20/25
---
---
---
All
I
---
8/22/25 - 5:09:30 pm
16
    
 
HACKER SEVERIN
CTO,F,DIR,BO
JB
---
10,000
---
8/20/25
---
---
10,000
New
I
---
8/22/25 - 5:09:30 pm
17
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,445,587
10,000
---
8/19/25
$339.15
$363.05
72
-99.3
D
10b
8/21/25 - 8:43:16 pm
18
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
8/19/25
---
$38.08
10,072
13,888.9
D
10b
8/21/25 - 8:43:16 pm
19
    
 
GLANCE NATALIE
O
JS
---
187
---
8/18/25
---
---
119,454
-0.2
D
10b
8/19/25 - 4:15:41 pm
20
    
 
GLANCE NATALIE
O
AS
$907,091
2,471
---
8/18/25
$364.64
$369.87
119,641
-2.0
D
10b
8/19/25 - 4:15:41 pm
21
    
 
CHEN STEPHEN C
GC
S
$421,816
1,282
---
8/15/25
---
$329.03
34,153
-3.6
D
R
8/18/25 - 5:22:01 pm
22
    
 
SKARUPPA MATTHEW
CFO
S
$920,297
2,797
---
8/15/25
---
$329.03
52,904
-5.0
D
R
8/18/25 - 5:21:53 pm
23
    
 
GLANCE NATALIE
O
S
$833,433
2,533
---
8/15/25
---
$329.03
122,112
-2.0
D
R
8/18/25 - 5:21:46 pm
24
    
 
MEESE ROBERT
O
S
$475,119
1,444
---
8/15/25
---
$329.03
120,080
-1.2
D
R
8/18/25 - 5:21:38 pm
25
    
 
CHEN STEPHEN C
GC
JS
---
750
---
8/15/25
---
---
35,435
-2.1
D
---
8/15/25 - 4:15:23 pm
26
    
 
SKARUPPA MATTHEW
CFO
JS
---
2,522
---
8/14/25
---
---
55,701
-4.3
D
---
8/14/25 - 4:15:46 pm
27
    
 
GLANCE NATALIE
O
JS
---
2,300
---
8/12/25
---
---
124,645
-1.8
D
---
8/13/25 - 4:23:17 pm
28
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,444,077
10,000
---
8/5/25
$339.32
$355.06
72
-99.3
D
10b
8/7/25 - 9:10:53 pm
29
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
8/5/25
---
$38.08
10,072
13,888.9
D
10b
8/7/25 - 9:10:53 pm
30
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,603,336
10,000
---
7/21/25
$355.31
$370.05
72
-99.3
D
10b
7/22/25 - 8:46:03 pm
31
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
7/21/25
---
$38.08
10,072
13,888.9
D
10b
7/22/25 - 8:46:03 pm
32
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$3,928,885
10,000
---
7/7/25
$386.90
$396.73
72
-99.3
D
10b
7/9/25 - 5:11:04 pm
33
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
7/7/25
---
$38.08
10,072
13,888.9
D
10b
7/9/25 - 5:11:04 pm
34
    
 
GLANCE NATALIE
O
AS
$1,090,582
2,709
---
7/1/25
$395.93
$413.14
126,945
-2.1
D
10b
7/2/25 - 4:10:38 pm
35
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OS
$4,711,993
10,000
---
6/20/25
$466.43
$481.35
72
-99.3
D
10b
6/23/25 - 8:29:21 pm
36
    
 
HACKER SEVERIN
CTO,F,DIR,BO
OE
$380,800
10,000
---
6/20/25
---
$38.08
10,072
13,888.9
D
10b
6/23/25 - 8:29:21 pm
37
1y
2
0%
73%
2
SHELTON JAMES H
DIR
AS
$426,777
895
---
6/13/25
---
$476.85
4,253
-17.4
D
10b
6/16/25 - 4:10:22 pm
38
    
 
SCHLOSSER MARIO
DIR
JB
---
379
---
6/11/25
---
---
379
New
D
R
6/20/25 - 8:01:17 am
39
    
 
MUNSON GILLIAN
DIR
JB
---
379
---
6/11/25
---
---
3,909
10.7
D
R
6/18/25 - 8:17:46 pm
40
    
 
CLEMENS SARA
DIR
JB
---
379
---
6/11/25
---
---
3,954
10.6
D
R
6/18/25 - 8:17:36 pm
41
    
 
ROSS BONNIE
DIR
JB
---
379
---
6/11/25
---
---
379
New
D
R
6/18/25 - 8:17:26 pm
42
    
 
LILLY III JOHN OSBORNE
DIR
JB
---
379
---
6/11/25
---
---
6,904
5.8
D
R
6/18/25 - 8:17:16 pm
43
    
 
SHELTON JAMES H
DIR
JB
---
379
---
6/11/25
---
---
4,632
8.9
D
R
6/18/25 - 8:17:06 pm
44
    
 
GORDON WILLIAM B
DIR
JB
---
379
---
6/11/25
---
---
76,414
0.5
D
R
6/18/25 - 8:16:56 pm
45
    
 
BOHUTINSKY AMY
DIR
JB
---
379
---
6/11/25
---
---
5,527
7.4
D
R
6/18/25 - 8:16:47 pm
46
    
 
HACKER SEVERIN
CTO,F,DIR,BO
JS
---
60,000
---
6/6/25
---
---
---
All
I
---
6/10/25 - 5:37:53 pm
47
    
 
HACKER SEVERIN
CTO,F,DIR,BO
JB
---
60,000
---
6/6/25
---
---
60,000
New
I
---
6/10/25 - 5:37:53 pm
48
    
 
VON AHN LUIS
PR,CEO,F,DIR,BO
JS
---
5,000
---
6/5/25
---
---
---
All
D
---
6/9/25 - 9:19:45 pm
49
    
 
VON AHN LUIS
PR,CEO,F,DIR,BO
JB
---
5,000
---
6/5/25
---
---
5,000
New
D
---
6/9/25 - 9:19:45 pm
50
    
 
MEESE ROBERT
O
AS
$3,676,456
10,000
---
4/23/25
$362.80
$370.00
123,805
-7.5
D
10b
4/24/25 - 4:06:45 pm
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