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 |
|---|---|---|---|---|---|---|
| 2020-06-09 | Sanofi10% owner | Sale | 120,234 | $597.48 | $71.8m | Form 4 |
| 2020-05-29 | Sanofi10% owner | Sale | 2,399,552 | $509.85 | $1.22bn | Form 4 |
| 2020-05-29 | Sanofi10% owner | Sale | 20,421,899 | $509.85 | $10.41bn | Form 4 |
| 2020-03-09 | Sanofi10% owner | Sale | 128,914 | $489.6532 | $63.1m | Form 4 |
| 2019-09-10 | Sanofi10% owner | Sale | 172,904 | $281.1491 | $48.6m | Form 4 |
| 2019-03-08 | Sanofi10% owner | Sale | 131,115 | $412.1673 | $54.0m | Form 4 |
| 2018-09-06 | Sanofi10% owner | Sale | 104,552 | $406.6804 | $42.5m | Form 4 |
| 2018-06-08 | Sanofi10% owner | Sale | 121,601 | $309.3057 | $37.6m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 2,557 | $487.0108 | $1.2m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 2,681 | $485.9939 | $1.3m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 5,723 | $485.2798 | $2.8m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 2,000 | $484.21 | $968.4k | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 4,485 | $482.8734 | $2.2m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 1,302 | $481.6284 | $627.1k | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 21,360 | $480.7489 | $10.3m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 28,586 | $479.9313 | $13.7m | Form 4 |
| 2017-08-25 | Sanofi10% owner | Purchase | 3,684 | $479.1912 | $1.8m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 6,960 | $488.574 | $3.4m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 8,860 | $487.5532 | $4.3m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 6,920 | $486.6264 | $3.4m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 5,724 | $485.5536 | $2.8m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 8,982 | $484.2671 | $4.3m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 5,016 | $483.3125 | $2.4m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 1,700 | $481.9565 | $819.3k | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 17,756 | $481.3267 | $8.5m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 13,638 | $480.3643 | $6.6m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 8,273 | $479.2349 | $4.0m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 3,326 | $478.1171 | $1.6m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 10,929 | $477.4224 | $5.2m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 5,103 | $475.9319 | $2.4m | Form 4 |
| 2017-08-24 | Sanofi10% owner | Purchase | 2,633 | $474.8578 | $1.3m | Form 4 |
| 2017-08-23 | Sanofi10% owner | Purchase | 13,037 | $480.3731 | $6.3m | Form 4 |
| 2017-08-23 | Sanofi10% owner | Purchase | 23,872 | $479.451 | $11.4m | Form 4 |
| 2017-08-23 | Sanofi10% owner | Purchase | 12,186 | $478.3422 | $5.8m | Form 4 |
| 2017-08-23 | Sanofi10% owner | Purchase | 9,600 | $477.3484 | $4.6m | Form 4 |
| 2017-08-23 | Sanofi10% owner | Purchase | 1,900 | $475.9732 | $904.3k | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 4,708 | $484.0367 | $2.3m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 18,311 | $483.0403 | $8.8m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 23,490 | $482.0789 | $11.3m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 15,197 | $481.1292 | $7.3m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 12,710 | $480.1698 | $6.1m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 6,507 | $478.9431 | $3.1m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 6,312 | $476.1472 | $3.0m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 12,020 | $475.1593 | $5.7m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 7,068 | $473.8843 | $3.3m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 5,806 | $473.0711 | $2.7m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 7,443 | $471.8245 | $3.5m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 13,544 | $470.7248 | $6.4m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 2,132 | $469.8097 | $1.0m | Form 4 |
| 2017-06-02 | Sanofi10% owner | Purchase | 400 | $468.10 | $187.2k | Form 4 |
Source: SEC EDGAR, Forms 4. Last ingested by Listed: Oct 30, 2026, 16:29 ET. Listed shows no prices and gives no investment advice.