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Detailed Insider History for:
KLAVIYO INC: KVYO
Price: 9/12/25 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
$31.19 $49.55 $23.77 $9,357 117 1,848 0.0% 5.8% 88.56% 0.39%
Exch Sector Industry Sub-Industry
NYSE 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
1y
2
0%
6%
1
WHALEN AMANDA
CFO
AS
$472,500
15,000
---
9/12/25
---
$31.50
481,719
-3.0
D
R,10b
9/12/25 - 6:10:00 pm
2
    
 
WHALEN AMANDA
CFO
JB
---
11,204
---
9/12/25
---
---
496,719
2.3
D
R,10b
9/12/25 - 6:10:00 pm
3
    
 
HALLEN ED
DIR,BO
JS
---
990,000
---
9/11/25
---
---
---
All
D
---
9/12/25 - 6:08:57 pm
4
    
 
HALLEN ED
DIR,BO
JB
---
990,000
---
9/11/25
---
---
990,000
New
D
---
9/12/25 - 6:08:57 pm
5
    
 
HALLEN ED
DIR,BO
JB
---
990,000
---
9/11/25
---
---
790,000
---
I
---
9/12/25 - 6:08:57 pm
6
1y
1
0%
39%
4
ST LEDGER SUSAN
DIR
AS
$109,899
3,413
---
9/10/25
---
$32.20
10,939
-23.8
D
R,10b
9/12/25 - 6:07:48 pm
7
3m
1
100%
-11%
1
BIALECKI ANDREW
CEO,DIR,BO
AS
$7,046,573
220,481
---
9/9/25
---
$31.96
---
All
D
10b
9/11/25 - 4:06:10 pm
8
    
 
BIALECKI ANDREW
CEO,DIR,BO
JB
---
220,481
---
9/9/25
---
---
220,481
New
D
10b
9/11/25 - 4:06:10 pm
9
1y
16
44%
2%
12
SUMMIT PARTNERS L P
BO
JS*
$127,480,000
4,000,000
---
9/8/25
---
$31.87
---
All
I
---
9/10/25 - 4:15:16 pm
10
    
 
SUMMIT PARTNERS L P
BO
JB
---
4,000,000
---
9/8/25
---
---
4,000,000
New
I
---
9/10/25 - 4:15:16 pm
11
3m
1
100%
-11%
1
BIALECKI ANDREW
CEO,DIR,BO
AS
$6,922,960
223,304
---
9/2/25
---
$30.76
---
All
D
10b
9/4/25 - 4:15:29 pm
12
    
 
BIALECKI ANDREW
CEO,DIR,BO
JB
---
223,304
---
9/2/25
---
---
223,304
New
D
10b
9/4/25 - 4:15:29 pm
13
    
 
BIALECKI ANDREW
CEO,DIR,BO
JS
---
3,500,000
---
8/28/25
---
---
---
All
D
10b
8/28/25 - 4:08:51 pm
14
    
 
BIALECKI ANDREW
CEO,DIR,BO
JB
---
3,726,702
8/26/25
8/28/25
---
---
3,500,000
---
D
10b
8/28/25 - 4:08:51 pm
15
3m
1
100%
-11%
1
BIALECKI ANDREW
CEO,DIR,BO
AS
$7,140,300
226,702
---
8/26/25
---
$31.21
---
All
D
10b
8/28/25 - 4:08:51 pm
16
1y
16
44%
2%
12
SUMMIT PARTNERS L P
BO
JS*
$29,259,750
975,000
---
8/25/25
---
$30.01
---
All
I
---
8/27/25 - 4:05:07 pm
17
    
 
SUMMIT PARTNERS L P
BO
JB
---
975,000
---
8/25/25
---
---
975,000
New
I
---
8/27/25 - 4:05:07 pm
18
    
 
SUMMIT PARTNERS L P
BO
JS
---
500,000
---
8/21/25
---
---
---
All
I
---
8/22/25 - 4:12:34 pm
19
6m
1
100%
-18%
2
GALVIN CARMEL
HR
AS
$353,279
11,155
---
8/18/25
---
$31.67
675,833
-1.6
D
R,10b
8/19/25 - 8:49:13 pm
20
1y
1
100%
-1%
1
ROWLAND STEPHEN ERIC
PR
AS
$223,523
7,105
---
8/18/25
---
$31.46
445,726
-1.6
D
R,10b
8/19/25 - 8:47:43 pm
21
    
 
ROWLAND STEPHEN ERIC
PR
JB
---
51,312
8/15/25
8/18/25
---
---
458,700
12.6
D
R,10b
8/19/25 - 8:47:43 pm
22
1y
4
0%
8%
1
EDMOND LANDON
LO
AS
$313,499
9,965
---
8/18/25
---
$31.46
392,584
-2.5
D
R,10b
8/19/25 - 8:44:24 pm
23
    
 
EDMOND LANDON
LO
JB
---
22,500
8/15/25
8/18/25
---
---
416,170
5.7
D
R,10b
8/19/25 - 8:44:24 pm
24
    
 
FERNANDEZ GOMEZ LUCIANO
DIR
JS
$220,010
7,000
---
8/15/25
---
$31.43
26,788
-20.7
D
R
8/19/25 - 8:52:42 pm
25
    
 
FERNANDEZ GOMEZ LUCIANO
DIR
JB
---
7,000
---
8/15/25
---
---
33,788
26.1
D
R
8/19/25 - 8:52:42 pm
26
    
 
WHALEN AMANDA
CFO
JS
$1,471,836
46,829
---
8/15/25
---
$31.43
500,515
-8.6
D
R,10b
8/19/25 - 8:51:10 pm
27
1y
2
0%
6%
1
WHALEN AMANDA
CFO
AS
$469,800
15,000
---
8/15/25
---
$31.32
485,515
-3.0
D
R,10b
8/19/25 - 8:51:10 pm
28
    
 
WHALEN AMANDA
CFO
JB
---
29,513
---
8/15/25
---
---
547,344
5.7
D
R,10b
8/19/25 - 8:51:10 pm
29
    
 
GALVIN CARMEL
HR
JS
$779,998
24,817
---
8/15/25
---
$31.43
686,988
-3.5
D
R,10b
8/19/25 - 8:49:13 pm
30
    
 
ROWLAND STEPHEN ERIC
PR
JS
$1,078,866
34,326
---
8/15/25
---
$31.43
424,374
-7.5
D
R,10b
8/19/25 - 8:47:43 pm
31
    
 
EDMOND LANDON
LO
JS
$776,164
24,695
---
8/15/25
---
$31.43
391,475
-5.9
D
R,10b
8/19/25 - 8:44:24 pm
32
1y
16
44%
2%
12
SUMMIT PARTNERS L P
BO
JS*
$195,064,992
6,500,000
---
8/13/25
---
$30.01
500,000
-92.9
I
---
8/15/25 - 4:17:27 pm
33
    
 
SUMMIT PARTNERS L P
BO
JB
---
7,000,000
---
8/13/25
---
---
7,000,000
New
I
---
8/15/25 - 4:17:27 pm
34
1y
1
100%
-1%
1
ROWLAND STEPHEN ERIC
PR
AS
$223,413
7,079
---
7/15/25
---
$31.56
435,845
-1.6
D
R,10b
7/16/25 - 5:59:31 pm
35
1y
2
0%
6%
1
WHALEN AMANDA
CFO
AS
$474,832
15,000
---
7/11/25
---
$31.32
517,831
-2.8
D
R,10b
7/14/25 - 4:09:04 pm
36
    
 
WHALEN AMANDA
CFO
JB
---
15,000
---
7/11/25
---
---
532,831
2.9
D
R,10b
7/14/25 - 4:09:04 pm
37
1y
1
100%
-1%
1
ROWLAND STEPHEN ERIC
PR
AS
$244,632
7,079
---
6/16/25
---
$33.82
442,924
-1.6
D
R,10b
6/17/25 - 4:33:24 pm
38
1y
2
0%
6%
1
WHALEN AMANDA
CFO
AS
$502,050
15,000
---
6/13/25
---
$33.47
517,831
-2.8
D
R,10b
6/13/25 - 6:55:37 pm
39
    
 
WHALEN AMANDA
CFO
JB
---
11,204
---
6/13/25
---
---
532,831
2.1
D
R,10b
6/13/25 - 6:55:37 pm
40
    
 
BIALECKI ANDREW
CEO,DIR,BO
JS
---
100,000
---
6/11/25
---
---
---
All
D
---
6/11/25 - 4:27:43 pm
41
    
 
BIALECKI ANDREW
CEO,DIR,BO
JB
---
100,000
---
6/11/25
---
---
100,000
New
D
---
6/11/25 - 4:27:43 pm
42
    
 
FERNANDEZ GOMEZ LUCIANO
DIR
JS
$87,117
2,560
---
6/10/25
---
$34.03
20,968
-10.9
D
R
6/11/25 - 4:25:35 pm
43
    
 
FERNANDEZ GOMEZ LUCIANO
DIR
JB
---
5,820
---
6/10/25
---
---
26,788
27.8
D
R
6/11/25 - 4:25:35 pm
44
    
 
WEISMAN TONY
DIR
JB
---
5,820
---
6/10/25
---
---
89,352
7.0
D
R
6/11/25 - 4:22:44 pm
45
    
 
OULMAN ROXANNE
DIR
JB
---
5,820
---
6/10/25
---
---
14,352
68.2
D
R
6/11/25 - 4:21:15 pm
46
    
 
CERAN JENNIFER
DIR
JB
---
5,820
---
6/10/25
---
---
14,352
68.2
D
R
6/11/25 - 4:19:46 pm
47
    
 
ST LEDGER SUSAN
DIR
JB
---
5,820
---
6/10/25
---
---
14,352
68.2
D
R
6/11/25 - 4:17:15 pm
48
1y
16
44%
2%
12
SUMMIT PARTNERS L P
BO
S
$133,400,000
4,000,000
---
6/4/25
---
$33.35
---
All
I
---
6/5/25 - 7:13:36 pm
49
    
 
SUMMIT PARTNERS L P
BO
JB
---
4,000,000
---
6/4/25
---
---
4,000,000
New
I
---
6/5/25 - 7:13:36 pm
50
1y
16
44%
2%
12
SUMMIT PARTNERS L P
BO
JS*
$132,000,000
4,000,000
---
5/19/25
---
$33.00
---
All
I
---
5/20/25 - 6:25:33 pm
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