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 JS
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Detailed Insider History for:
REGENERON PHARMACEUTICALS INC: REGN
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
$741.29 $790.98 $476.49 $78,567 103 1,110 0.5% 3.2% 90.11% 2.02%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
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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
    
 
VAN PLEW DANIEL P
VP
JS
$1,790,254
2,552
---
12/9/25
---
$701.51
21,673
-10.5
D
---
12/11/25 - 4:34:24 pm
2
    
 
MURPHY ANDREW J
VP
JS
$2,966,686
4,229
---
12/9/25
---
$701.51
47,833
-8.1
D
---
12/11/25 - 4:32:45 pm
3
    
 
MCCOURT MARION
VP
JS
$716,242
1,021
---
12/9/25
---
$701.51
14,349
-6.6
D
---
12/11/25 - 4:30:49 pm
4
1y
40
48%
2%
1
YANCOPOULOS GEORGE
CB,PR,DIR
OS
$92,510,928
131,874
---
12/9/25
---
$701.51
310,460
-29.8
D
---
12/11/25 - 4:27:23 pm
5
    
 
YANCOPOULOS GEORGE
CB,PR,DIR
OE
$81,580,688
146,815
---
12/9/25
---
$555.67
442,334
49.7
D
---
12/11/25 - 4:27:23 pm
6
1y
34
29%
18%
1
SCHLEIFER LEONARD S
CB,PR,CEO,DIR
OS
$108,835,768
155,145
---
12/9/25
---
$701.51
214,523
-42.0
D
---
12/11/25 - 4:23:04 pm
7
    
 
SCHLEIFER LEONARD S
CB,PR,CEO,DIR
OE
$95,976,992
172,723
---
12/9/25
---
$555.67
369,668
87.7
D
---
12/11/25 - 4:23:04 pm
8
    
 
PITOFSKY JASON
VP,CT
JS
$705,098
989
---
12/8/25
---
$712.94
5,308
-15.7
D
R
12/9/25 - 5:38:25 pm
9
    
 
VAN PLEW DANIEL P
VP
JS
$1,358,864
1,906
---
12/8/25
---
$712.94
24,225
-7.3
D
R
12/9/25 - 4:31:12 pm
10
    
 
MURPHY ANDREW J
VP
JS
$1,211,285
1,699
---
12/8/25
---
$712.94
52,062
-3.2
D
R
12/9/25 - 4:17:05 pm
11
    
 
MCCOURT MARION
VP
JS
$952,488
1,336
---
12/8/25
---
$712.94
15,370
-8.0
D
R
12/9/25 - 4:10:59 pm
12
    
 
LAROSA JOSEPH J
VP,GC,SEC
JS
$995,264
1,396
---
12/8/25
---
$712.94
29,517
-4.5
D
R
12/9/25 - 4:09:43 pm
13
    
 
FENIMORE CHRISTOPHER R
VP,CFO
JS
$707,237
992
---
12/8/25
---
$712.94
18,300
-5.1
D
R
12/9/25 - 4:08:22 pm
14
    
 
PITOFSKY JASON
VP,CT
JB
---
2,064
---
12/5/25
---
---
6,297
48.8
D
R
12/9/25 - 5:38:25 pm
15
    
 
VAN PLEW DANIEL P
VP
JB
---
3,715
---
12/5/25
---
---
26,131
16.6
D
R
12/9/25 - 4:31:12 pm
16
    
 
MURPHY ANDREW J
VP
JB
---
3,715
---
12/5/25
---
---
53,761
7.4
D
R
12/9/25 - 4:17:05 pm
17
    
 
MCCOURT MARION
VP
JB
---
2,476
---
12/5/25
---
---
16,706
17.4
D
R
12/9/25 - 4:10:59 pm
18
    
 
LAROSA JOSEPH J
VP,GC,SEC
JB
---
2,476
---
12/5/25
---
---
30,913
8.7
D
R
12/9/25 - 4:09:43 pm
19
    
 
FENIMORE CHRISTOPHER R
VP,CFO
JB
---
3,027
---
12/5/25
---
---
19,292
18.6
D
R
12/9/25 - 4:08:22 pm
20
1y
23
70%
-10%
1
LAROSA JOSEPH J
VP,GC,SEC
OS
$9,346,664
12,686
---
11/20/25
---
$736.77
22,839
-35.7
D
---
11/24/25 - 4:07:16 pm
21
    
 
LAROSA JOSEPH J
VP,GC,SEC
OE
$8,029,432
14,450
---
11/20/25
---
$555.67
35,525
68.6
D
---
11/24/25 - 4:07:16 pm
22
    
 
BASSLER BONNIE L
DIR
OS
$570,000
760
---
11/20/25
---
$750.00
1,548
-32.9
D
10b
11/24/25 - 4:05:34 pm
23
    
 
BASSLER BONNIE L
DIR
OE
$282,264
760
---
11/20/25
---
$371.40
2,308
49.1
D
10b
11/24/25 - 4:05:34 pm
24
    
 
PITOFSKY JASON
VP,CT
S
$280,766
431
---
11/7/25
---
$651.43
4,233
-9.2
D
---
11/10/25 - 4:37:37 pm
25
1y
3
100%
39%
2
POON CHRISTINE A
DIR
OB
$4,790,332
9,212
10/29/25
10/30/25
---
$520.01
8,852
---
D
---
10/31/25 - 4:09:02 pm
26
    
 
MURPHY ANDREW J
VP
OS
$21,080,162
34,028
10/29/25
10/30/25
---
$648.82
50,046
-40.5
D
---
10/31/25 - 4:06:57 pm
27
1y
4
25%
8%
2
POON CHRISTINE A
DIR
S
$4,252,746
6,500
---
10/29/25
$652.68
$657.29
2,352
-73.4
D
---
10/31/25 - 4:09:02 pm
28
    
 
MURPHY ANDREW J
VP
OE
$19,448,450
35,000
---
10/29/25
---
$555.67
84,074
71.3
D
---
10/31/25 - 4:06:57 pm
29
    
 
SCHENKEIN DAVID P
DIR
JB
---
166
---
1/2/25
---
---
448
58.9
D
R
1/6/25 - 5:42:19 pm
30
    
 
THOMPSON CRAIG B
DIR
JB
---
166
---
1/2/25
---
---
620
36.6
D
R
1/6/25 - 4:13:03 pm
31
    
 
COLES N ANTHONY
DIR
JB
---
166
---
1/2/25
---
---
1,559
11.9
D
R
1/6/25 - 4:12:14 pm
32
    
 
ZOGHBI HUDA Y
DIR
JB
---
166
---
1/2/25
---
---
1,548
12.0
D
R
1/6/25 - 4:11:47 pm
33
    
 
RYAN ARTHUR F
DIR
JB
---
166
---
1/2/25
---
---
17,748
0.9
D
R
1/6/25 - 4:08:27 pm
34
    
 
POON CHRISTINE A
DIR
JB
---
166
---
1/2/25
---
---
2,352
7.6
D
R
1/6/25 - 4:07:40 pm
35
    
 
GUARINI KATHRYN
DIR
JB
---
166
---
1/2/25
---
---
448
58.9
D
R
1/6/25 - 4:06:55 pm
36
    
 
GOLDSTEIN JOSEPH L
DIR
JB
---
166
---
1/2/25
---
---
6,548
2.6
D
R
1/6/25 - 4:06:04 pm
37
    
 
BROWN MICHAEL S
DIR
JB
---
166
---
1/2/25
---
---
1,548
12.0
D
R
1/6/25 - 4:05:22 pm
38
    
 
BASSLER BONNIE L
DIR
JB
---
166
---
1/2/25
---
---
1,548
12.0
D
R
1/6/25 - 4:04:09 pm
39
    
 
SING GEORGE L
DIR
JB
---
166
---
1/2/25
---
---
27,828
0.6
D
R
1/3/25 - 4:02:28 pm
40
1y
40
35%
11%
1
SING GEORGE L
DIR
OS
$1,379,554
1,948
---
12/31/24
---
$708.19
27,662
-6.6
D
R
1/3/25 - 4:02:28 pm
41
    
 
SING GEORGE L
DIR
OE
$1,379,696
3,338
---
12/31/24
---
$413.33
29,610
12.7
D
R
1/3/25 - 4:02:28 pm
42
    
 
POON CHRISTINE A
DIR
JB
---
14
---
12/20/24
---
---
2,186
0.6
D
R
1/6/25 - 4:07:40 pm
43
    
 
VAN PLEW DANIEL P
VP
JS
$708,155
969
---
12/16/24
---
$730.81
34,792
-2.7
D
---
12/18/24 - 4:03:11 pm
44
    
 
STAHL NEIL
VP
JS
$222,166
304
---
12/16/24
---
$730.81
48,829
-0.6
D
---
12/18/24 - 4:02:59 pm
45
    
 
PITOFSKY JASON
VP,CT
JS
$217,781
298
---
12/16/24
---
$730.81
4,664
-6.0
D
---
12/18/24 - 4:02:48 pm
46
    
 
MURPHY ANDREW J
VP
JS
$770,274
1,054
---
12/16/24
---
$730.81
49,074
-2.1
D
---
12/18/24 - 4:02:34 pm
47
    
 
MCCOURT MARION
VP
JS
$554,685
759
---
12/16/24
---
$730.81
14,230
-5.1
D
---
12/18/24 - 4:02:07 pm
48
    
 
LAROSA JOSEPH J
VP,GC,SEC
JS
$513,029
702
---
12/16/24
---
$730.81
30,075
-2.3
D
---
12/18/24 - 4:01:51 pm
49
    
 
FENIMORE CHRISTOPHER R
VP,CFO
JS
$358,828
491
---
12/16/24
---
$730.81
16,265
-2.9
D
---
12/18/24 - 4:01:20 pm
50
    
 
PITOFSKY JASON
VP,CT
JS
$117,263
149
---
12/9/24
---
$787.00
4,962
-2.9
D
R
12/10/24 - 4:03:48 pm
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