Regeneron Pharmaceuticals, Inc.
REGNNasdaqCIK 872589HealthcareFiscal year ends Dec 31
All transactions: 551
Non-derivative transactions reported on Forms 4, newest first. Purchases and sales (codes P and S) are open-market trades; the other codes are grants, exercises, withholding and gifts. The reported price is as stated on the form, not a market price.
What these mean: insiders, Form 4, transaction codes, Rule 10b5-1 plans.
No open-market purchases or sales by insiders are in coverage from Dec 2024 to Nov 2026.
| Date | Insider | Transaction | Shares | Reported price | Value | Filing |
|---|---|---|---|---|---|---|
| 2015-09-23 | Sanofi10% owner | Purchase | 2,573 | $527.8528 | $1.4m | Form 4 |
| 2015-09-23 | Sanofi10% owner | Purchase | 3,472 | $526.9029 | $1.8m | Form 4 |
| 2015-09-23 | Sanofi10% owner | Purchase | 1,200 | $525.8842 | $631.1k | Form 4 |
| 2015-09-23 | Sanofi10% owner | Purchase | 3,211 | $524.4477 | $1.7m | Form 4 |
| 2015-09-23 | Sanofi10% owner | Purchase | 2,600 | $523.4327 | $1.4m | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 253 | $542.2822 | $137.2k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 700 | $541.1486 | $378.8k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 2,503 | $540.2032 | $1.4m | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 1,600 | $539.2194 | $862.8k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 948 | $537.8604 | $509.9k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 1,633 | $537.101 | $877.1k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 305 | $535.7123 | $163.4k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 700 | $534.3414 | $374.0k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 823 | $533.1927 | $438.8k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 674 | $532.3597 | $358.8k | Form 4 |
| 2015-07-27 | Sanofi10% owner | Purchase | 500 | $530.708 | $265.4k | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 20,245 | $399.7415 | $8.1m | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 3,300 | $398.7791 | $1.3m | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 2,067 | $397.5334 | $821.7k | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 1,700 | $396.6641 | $674.3k | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 890 | $395.5299 | $352.0k | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 700 | $393.8886 | $275.7k | Form 4 |
| 2014-12-24 | Sanofi10% owner | Purchase | 1,100 | $392.7173 | $432.0k | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 9,983 | $398.1565 | $4.0m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 16,237 | $397.7191 | $6.5m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 2,868 | $396.6363 | $1.1m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 47,730 | $394.8543 | $18.8m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 16,393 | $393.9927 | $6.5m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 8,030 | $392.9571 | $3.2m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 2,550 | $391.2539 | $997.7k | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 12,046 | $389.8806 | $4.7m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 15,104 | $389.1733 | $5.9m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 5,500 | $388.0395 | $2.1m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 17,013 | $386.4523 | $6.6m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 16,813 | $385.5228 | $6.5m | Form 4 |
| 2014-12-23 | Sanofi10% owner | Purchase | 1,190 | $384.4259 | $457.5k | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 9,625 | $339.9273 | $3.3m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 5,824 | $338.6903 | $2.0m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 25,548 | $337.948 | $8.6m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 12,784 | $336.9438 | $4.3m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 5,010 | $335.80 | $1.7m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 22,601 | $334.7498 | $7.6m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 11,402 | $333.4863 | $3.8m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 13,224 | $332.3833 | $4.4m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 6,308 | $331.4553 | $2.1m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 5,799 | $330.1847 | $1.9m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 3,702 | $329.3762 | $1.2m | Form 4 |
| 2014-10-16 | Sanofi10% owner | Purchase | 300 | $328.4733 | $98.5k | Form 4 |
| 2014-10-15 | Sanofi10% owner | Purchase | 2,419 | $334.8098 | $809.9k | Form 4 |
| 2014-10-15 | Sanofi10% owner | Purchase | 7,825 | $334.0712 | $2.6m | Form 4 |
Source: SEC EDGAR, Forms 4. Last ingested by Listed: Nov 6, 2026, 16:27 ET. Listed shows no prices and gives no investment advice.