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Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
ALECTOR INC: ALEC
Price: 12/12/25 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
$1.49 $3.40 $0.87 $163 109 2,708 0.0% 5.3% 82.16% 9.94%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Biological Products, (No Disgnostic Substances)
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#
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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
    
 
GAROFALO ELIZABETH A
DIR
JB
---
35,000
---
6/12/24
---
---
61,250
133.3
D
R
6/12/24 - 4:46:08 pm
2
    
 
SCHELLER RICHARD H
DIR
JB
---
35,000
---
6/12/24
---
---
79,250
79.1
D
R
6/12/24 - 4:46:06 pm
3
    
 
WEHNER DAVID M
DIR
JB
---
35,000
---
6/12/24
---
---
115,330
43.6
D
R
6/12/24 - 4:46:05 pm
4
    
 
HAMMOND PAULA
DIR
JB
---
35,000
---
6/12/24
---
---
70,709
98.0
D
R
6/12/24 - 4:46:03 pm
5
    
 
ROMANO GARY
O
S
$38,582
8,040
---
6/3/24
---
$4.80
188,273
-4.1
D
R
6/4/24 - 6:05:06 pm
6
    
 
KENKARE MITRA SARA
PR
S
$63,373
13,206
---
6/3/24
---
$4.80
305,641
-4.1
D
R
6/4/24 - 6:05:05 pm
7
    
 
ROSENTHAL ARNON
CEO,DIR
S
$120,618
25,135
---
6/3/24
---
$4.80
1,975,245
-1.3
D
R
6/4/24 - 6:05:04 pm
8
    
 
GRASSO MARC
CFO
S
$33,208
6,920
---
6/3/24
---
$4.80
138,037
-4.8
D
R
6/4/24 - 6:05:03 pm
9
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JS
---
500,000
---
5/29/24
---
---
9,853,817
-4.8
I
---
5/31/24 - 5:24:23 pm
10
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JS
---
98,533
---
5/29/24
---
---
---
All
D
---
5/31/24 - 5:24:23 pm
11
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JB
---
98,533
---
5/29/24
---
---
98,533
New
D
---
5/31/24 - 5:24:23 pm
12
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JS
---
98,533
---
4/30/24
---
---
---
All
D
---
5/2/24 - 5:32:41 pm
13
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JS
---
500,000
---
4/30/24
---
---
10,353,817
-4.6
I
---
5/2/24 - 5:32:41 pm
14
    
 
POLARIS VENTURE MANAGEMENT CO VI L L C
BO
JB
---
98,533
---
4/30/24
---
---
98,533
New
D
---
5/2/24 - 5:32:41 pm
15
    
 
ALTMEYER MARK
DIR
JB
---
41,250
---
3/19/24
---
---
41,250
New
D
R
3/21/24 - 5:01:10 pm
16
    
 
DESOUZA ERROL B
DIR
JB
---
41,250
---
3/19/24
---
---
41,250
New
D
R
3/21/24 - 5:01:08 pm
17
    
 
ALTMEYER MARK
DIR
3
---
---
---
3/19/24
---
---
---
---
D
---
3/21/24 - 5:00:20 pm
18
    
 
DESOUZA ERROL B
DIR
3
---
---
---
3/19/24
---
---
---
---
D
---
3/21/24 - 5:00:15 pm
19
    
 
GRASSO MARC
CFO
S
$39,562
5,716
---
3/4/24
---
$6.92
144,957
-3.8
D
R
3/5/24 - 6:00:22 pm
20
    
 
ROSENTHAL ARNON
CEO,DIR
S
$130,386
18,837
---
3/4/24
---
$6.92
2,000,380
-0.9
D
R
3/5/24 - 6:00:21 pm
21
    
 
ROMANO GARY
O
S
$41,554
6,001
---
3/4/24
---
$6.92
196,313
-3.0
D
R
3/5/24 - 6:00:19 pm
22
    
 
KENKARE MITRA SARA
PR
S
$70,387
10,169
---
3/4/24
---
$6.92
318,847
-3.1
D
R
3/5/24 - 6:00:14 pm
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