Insider Transactions in Q4 2025 at Regeneron Pharmaceuticals, Inc. (REGN)
Insider Transaction List (Q4 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 09
2025
|
Marion Mc Court EVP Commercial |
SELL
Payment of exercise price or tax liability
|
Direct |
1,021
-6.64%
|
$715,721
$701.51 P/Share
|
|
Dec 09
2025
|
Andrew J Murphy EVP Research |
SELL
Payment of exercise price or tax liability
|
Direct |
4,229
-8.12%
|
$2,964,529
$701.51 P/Share
|
|
Dec 09
2025
|
Daniel P Van Plew EVP & General Mgr, Industrial |
SELL
Payment of exercise price or tax liability
|
Direct |
2,552
-10.53%
|
$1,788,952
$701.51 P/Share
|
|
Dec 09
2025
|
George Yancopoulos Bd. Co-Chair, President & CSO |
SELL
Payment of exercise price or tax liability
|
Direct |
131,874
-29.81%
|
$92,443,674
$701.51 P/Share
|
|
Dec 09
2025
|
George Yancopoulos Bd. Co-Chair, President & CSO |
BUY
Exercise of conversion of derivative security
|
Direct |
146,815
+24.92%
|
$81,482,325
$555.67 P/Share
|
|
Dec 09
2025
|
Leonard S Schleifer Bd. Co-Chair, President & CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
155,145
-41.97%
|
$108,756,645
$701.51 P/Share
|
|
Dec 09
2025
|
Leonard S Schleifer Bd. Co-Chair, President & CEO |
BUY
Exercise of conversion of derivative security
|
Direct |
172,723
+31.84%
|
$95,861,265
$555.67 P/Share
|
|
Dec 08
2025
|
Jason Pitofsky VP Controller |
SELL
Payment of exercise price or tax liability
|
Direct |
989
-15.71%
|
$704,168
$712.94 P/Share
|
|
Dec 08
2025
|
Daniel P Van Plew EVP & General Mgr, Industrial |
SELL
Payment of exercise price or tax liability
|
Direct |
1,906
-7.29%
|
$1,357,072
$712.94 P/Share
|
|
Dec 08
2025
|
Andrew J Murphy EVP Research |
SELL
Payment of exercise price or tax liability
|
Direct |
1,699
-3.16%
|
$1,209,688
$712.94 P/Share
|
|
Dec 08
2025
|
Joseph J Larosa EVP General Counsel and Secret |
SELL
Payment of exercise price or tax liability
|
Direct |
1,396
-4.52%
|
$993,952
$712.94 P/Share
|
|
Dec 08
2025
|
Marion Mc Court EVP Commercial |
SELL
Payment of exercise price or tax liability
|
Direct |
1,336
-8.0%
|
$951,232
$712.94 P/Share
|
|
Dec 08
2025
|
Christopher R. Fenimore EVP Finance CFO |
SELL
Payment of exercise price or tax liability
|
Direct |
992
-5.14%
|
$706,304
$712.94 P/Share
|
|
Dec 05
2025
|
Jason Pitofsky VP Controller |
BUY
Grant, award, or other acquisition
|
Direct |
2,064
+24.69%
|
-
|
|
Dec 05
2025
|
Daniel P Van Plew EVP & General Mgr, Industrial |
BUY
Grant, award, or other acquisition
|
Direct |
3,715
+12.45%
|
-
|
|
Dec 05
2025
|
Andrew J Murphy EVP Research |
BUY
Grant, award, or other acquisition
|
Direct |
3,715
+6.46%
|
-
|
|
Dec 05
2025
|
Joseph J Larosa EVP General Counsel and Secret |
BUY
Grant, award, or other acquisition
|
Direct |
2,476
+7.42%
|
-
|
|
Dec 05
2025
|
Marion Mc Court EVP Commercial |
BUY
Grant, award, or other acquisition
|
Direct |
2,476
+12.91%
|
-
|
|
Dec 05
2025
|
Christopher R. Fenimore EVP Finance CFO |
BUY
Grant, award, or other acquisition
|
Direct |
3,027
+13.56%
|
-
|
|
Nov 20
2025
|
Bonnie L Bassler Director |
SELL
Open market or private sale
|
Direct |
760
-32.93%
|
$570,000
$750.0 P/Share
|
|
Nov 20
2025
|
Bonnie L Bassler Director |
BUY
Exercise of conversion of derivative security
|
Direct |
760
+24.77%
|
$281,960
$371.4 P/Share
|
|
Nov 20
2025
|
Joseph J Larosa EVP General Counsel and Secret |
SELL
Payment of exercise price or tax liability
|
Direct |
12,686
-35.71%
|
$9,336,896
$736.77 P/Share
|
|
Nov 20
2025
|
Joseph J Larosa EVP General Counsel and Secret |
BUY
Exercise of conversion of derivative security
|
Direct |
14,450
+28.91%
|
$8,019,750
$555.67 P/Share
|
|
Nov 07
2025
|
Jason Pitofsky VP Controller |
SELL
Open market or private sale
|
Direct |
431
-9.24%
|
$280,581
$651.43 P/Share
|
|
Oct 30
2025
|
Andrew J Murphy EVP Research |
SELL
Bona fide gift
|
Direct |
1,538
-2.98%
|
-
|
|
Oct 30
2025
|
Christine A Poon Director |
BUY
Exercise of conversion of derivative security
|
Direct |
2,712
+34.88%
|
$1,410,240
$520.01 P/Share
|
|
Oct 29
2025
|
Andrew J Murphy EVP Research |
SELL
Payment of exercise price or tax liability
|
Direct |
32,490
-38.64%
|
$21,053,520
$648.82 P/Share
|
|
Oct 29
2025
|
Andrew J Murphy EVP Research |
BUY
Exercise of conversion of derivative security
|
Direct |
35,000
+29.39%
|
$19,425,000
$555.67 P/Share
|
|
Oct 29
2025
|
Christine A Poon Director |
SELL
Open market or private sale
|
Direct |
6,500
-18.89%
|
$4,251,000
$654.91 P/Share
|
|
Oct 29
2025
|
Christine A Poon Director |
BUY
Exercise of conversion of derivative security
|
Direct |
6,500
+42.34%
|
$3,380,000
$520.01 P/Share
|