George Yancopoulos is President at REGENERON PHARMACEUTICALS, INC. (REGN). They have made 7 open-market trades across 1 company since 2006, most recently 2025-12-31.
CIK 0001226690
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| REGN | 310,460 | $245.6M |
Shares reported on the most recent Form 4, priced at the 2026-01-05 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| REGN | SELL · 10b5-1 | 2024-05-16 | 2024-05-17 | $972.73 | $97.3M | -1.1% | +6.6% | +19.9% |
| REGN | SELL · 10b5-1 | 2024-05-15 | 2024-05-17 | $975.92 | $91.7M | -1.1% | +6.6% | +19.9% |
| REGN | SELL · 10b5-1 | 2024-01-02 | 2024-01-04 | $900.00 | $15.2M | +2.7% | +3.5% | +5.1% |
| REGN | SELL · 10b5-1 | 2023-03-23 | 2023-03-27 | $803.61 | $5.0M | +0.6% | -5.6% | -4.8% |
| REGN | SELL | 2023-02-06 | 2023-02-08 | $800.08 | $21.1M | -0.6% | -0.6% | +0.5% |
| REGN | SELL | 2021-08-13 | 2021-08-17 | $625.29 | $62.0M | +2.0% | +0.5% | -0.3% |
| REGN | SELL | 2021-08-05 | 2021-08-06 | $600.06 | $60.0M | +4.0% | +9.5% | +6.0% |
| REGN | SELL | 2021-06-21 | 2021-06-23 | $538.90 | $86.2M | +9.2% | +10.0% | +21.4% |
| REGN | SELL | 2020-03-10 | 2020-03-11 | $470.47 | $107.2M | +2.5% | +16.4% | +37.0% |
| REGN | SELL | 2020-02-24 | 2020-02-25 | $420.17 | $99.3M | +11.4% | +1.9% | +22.8% |
| REGN | SELL · 10b5-1 | 2015-12-02 | 2015-12-04 | $549.03 | $23.8M | -13.6% | -2.9% | -24.4% |
| REGN | SELL · 10b5-1 | 2015-11-02 | 2015-11-03 | $571.61 | $24.8M | -13.6% | -2.9% | -21.3% |
| REGN | SELL · 10b5-1 | 2014-02-12 | 2014-02-13 | $320.33 | $28.5M | -13.6% | -2.9% | -2.9% |
| REGN | SELL | 2013-05-07 | 2013-05-08 | $262.64 | $26.3M | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2012-05-01 | 2012-05-02 | $134.83 | $4.5M | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2012-03-26 | 2012-03-27 | $120.24 | $4.0M | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2012-01-05 | 2012-01-06 | $58.00 | $1.6M | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2011-12-01 | 2011-12-02 | $59.38 | $1.6M | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2008-12-16 | 2008-12-18 | $16.40 | $443K | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2007-04-16 | 2007-04-17 | $24.98 | $10K | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2007-04-16 | 2007-04-17 | $24.54 | $758K | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2007-04-09 | 2007-04-11 | $23.82 | $228K | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2007-01-03 | 2007-01-05 | $20.02 | $461K | -13.6% | -2.9% | -2.9% |
| REGN | SELL · 10b5-1 | 2006-01-09 | 2006-01-11 | $17.33 | $16K | -13.6% | -2.9% | -2.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.