There have been 50 recent insider transactions recorded for Regeneron Pharmaceuticals, Inc. (REGN), including 23 buys and 27 sells. Total insider buying was valued at $11.7M and total insider selling at $156.61M.
Notable insiders with recent activity include Ryan Arthur F, Zoghbi Huda Y, Pitofsky Jason. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — REGN
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Ryan Arthur F |
Director |
Informative Sell |
40 |
$779.71 |
$31.19K |
17,603 |
| 2026-03-02 |
Ryan Arthur F |
Director |
Informative Sell |
20 |
$789.28 |
$15.79K |
17,703 |
| 2026-02-19 |
Zoghbi Huda Y |
Director |
Option Exercise (Sell) |
1,638 |
$376.69 |
$617.02K |
800 |
| 2026-02-09 |
Ryan Arthur F |
Director |
Informative Sell |
1 |
$787.82 |
$787.82 |
17,803 |
| 2026-02-09 |
Pitofsky Jason |
SVP Controller |
Option Exercise (Sell) |
1,000 |
$492.00 |
$492K |
905 |
| 2026-01-07 |
Bassler Bonnie L |
Director |
Informative Sell |
1,500 |
$800.00 |
$1.2M |
1,703 |
| 2026-01-02 |
Brown Michael S |
Director |
RSU Award |
155 |
- |
- |
1,703 |
| 2026-01-02 |
Ryan Arthur F |
Director |
RSU Award |
1,962 |
$772.76 |
$1.52M |
1,962 |
| 2026-01-02 |
Poon Christine A |
Director |
RSU Award |
1,962 |
$772.76 |
$1.52M |
1,962 |
| 2026-01-02 |
Coles N Anthony |
Director |
RSU Award |
155 |
- |
- |
1,714 |
| 2026-01-02 |
Sing George L |
Director |
RSU Award |
1,962 |
$772.76 |
$1.52M |
1,962 |
| 2026-01-02 |
Goldstein Joseph L |
Director |
RSU Award |
1,962 |
$772.76 |
$1.52M |
1,962 |
| 2026-01-02 |
Thompson Craig B. |
Director |
RSU Award |
155 |
- |
- |
775 |
| 2026-01-02 |
Schenkein David P |
Director |
RSU Award |
155 |
- |
- |
603 |
| 2026-01-02 |
Zoghbi Huda Y |
Director |
RSU Award |
155 |
- |
- |
1,703 |
| 2026-01-02 |
Bassler Bonnie L |
Director |
RSU Award |
155 |
- |
- |
1,703 |
| 2026-01-02 |
Guarini Kathryn |
Director |
RSU Award |
155 |
- |
- |
603 |
| 2025-12-31 |
Schleifer Leonard S |
Bd. Co-chair, President & CEO |
Tax Withholding of RSU |
28,570 |
$772.09 |
$22.06M |
214,523 |
| 2025-12-31 |
Yancopoulos George |
Bd. Co-chair, President & CSO |
Tax Withholding of RSU |
28,570 |
$772.09 |
$22.06M |
310,460 |
| 2025-12-30 |
Sing George L |
Director |
Option Exercise (Sell) |
9,212 |
$520.01 |
$4.79M |
- |
| 2025-12-09 |
Yancopoulos George |
Bd. Co-chair, President & CSO |
Tax Withholding of RSU |
131,874 |
$701.51 |
$92.51M |
310,460 |
| 2025-12-09 |
Van Plew Daniel P |
EVP & General Mgr, Industrial |
Tax Withholding of RSU |
2,552 |
$701.51 |
$1.79M |
21,673 |
| 2025-12-09 |
Mccourt Marion |
EVP Commercial |
Tax Withholding of RSU |
1,021 |
$701.51 |
$716.24K |
14,349 |
| 2025-12-09 |
Murphy Andrew J |
EVP Research |
Tax Withholding of RSU |
4,229 |
$701.51 |
$2.97M |
47,833 |
| 2025-01-02 |
Sing George L |
Director |
RSU Award |
1,958 |
$719.37 |
$1.41M |
1,958 |
| 2025-01-02 |
Brown Michael S |
Director |
RSU Award |
166 |
- |
- |
1,548 |
| 2025-01-02 |
Ryan Arthur F |
Director |
RSU Award |
1,958 |
$719.37 |
$1.41M |
1,958 |
| 2025-01-02 |
Poon Christine A |
Director |
RSU Award |
1,958 |
$719.37 |
$1.41M |
1,958 |
| 2025-01-02 |
Coles N Anthony |
Director |
RSU Award |
166 |
- |
- |
1,559 |
| 2025-01-02 |
Goldstein Joseph L |
Director |
RSU Award |
1,958 |
$719.37 |
$1.41M |
1,958 |
| 2025-01-02 |
Thompson Craig B. |
Director |
RSU Award |
166 |
- |
- |
620 |
| 2025-01-02 |
Schenkein David P |
Director |
RSU Award |
166 |
- |
- |
448 |
| 2025-01-02 |
Zoghbi Huda Y |
Director |
RSU Award |
166 |
- |
- |
1,548 |
| 2025-01-02 |
Bassler Bonnie L |
Director |
RSU Award |
166 |
- |
- |
1,548 |
| 2025-01-02 |
Guarini Kathryn |
Director |
RSU Award |
166 |
- |
- |
448 |
| 2024-12-31 |
Sing George L |
Director |
Option Exercise (Sell) |
3,338 |
$413.33 |
$1.38M |
- |
| 2024-12-20 |
Poon Christine A |
Director |
Inheritance (Buy) |
14 |
- |
- |
2,186 |
| 2024-12-16 |
Stahl Neil |
EVP Research and Development |
Tax Withholding of RSU |
304 |
$730.81 |
$222.17K |
48,829 |
| 2024-12-16 |
Larosa Joseph J |
EVP General Counsel and Secret |
Tax Withholding of RSU |
702 |
$730.81 |
$513.03K |
30,075 |
| 2024-12-16 |
Van Plew Daniel P |
EVP & General Mgr, Industrial |
Tax Withholding of RSU |
969 |
$730.81 |
$708.15K |
34,792 |
| 2024-12-16 |
Mccourt Marion |
EVP Commercial |
Tax Withholding of RSU |
759 |
$730.81 |
$554.68K |
14,230 |
| 2024-12-16 |
Fenimore Christopher R. |
SVP Finance & CFO |
Tax Withholding of RSU |
491 |
$730.81 |
$358.83K |
16,265 |
| 2024-12-16 |
Murphy Andrew J |
EVP Research |
Tax Withholding of RSU |
1,054 |
$730.81 |
$770.27K |
49,074 |
| 2024-12-16 |
Pitofsky Jason |
VP Controller |
Tax Withholding of RSU |
298 |
$730.81 |
$217.78K |
4,664 |
| 2024-12-09 |
Stahl Neil |
EVP Research and Development |
Tax Withholding of RSU |
466 |
$787.00 |
$366.74K |
49,133 |
| 2024-12-09 |
Larosa Joseph J |
EVP General Counsel and Secret |
Tax Withholding of RSU |
492 |
$787.00 |
$387.2K |
30,777 |
| 2024-12-09 |
Van Plew Daniel P |
EVP & General Mgr, Industrial |
Tax Withholding of RSU |
492 |
$787.00 |
$387.2K |
35,761 |
| 2024-12-09 |
Mccourt Marion |
EVP Commercial |
Tax Withholding of RSU |
274 |
$787.00 |
$215.64K |
14,989 |
| 2024-12-09 |
Fenimore Christopher R. |
SVP Finance & CFO |
Tax Withholding of RSU |
1,140 |
$787.00 |
$897.18K |
16,756 |
| 2024-12-09 |
Murphy Andrew J |
EVP Research |
Tax Withholding of RSU |
492 |
$787.00 |
$387.2K |
50,128 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
