Robert E. Landry is CFO & VP at REGENERON PHARMACEUTICALS, INC. (REGN). They have made 37 open-market trades across 2 companies since 2015, most recently 2026-09-15.
CIK 0001585160
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 37 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| REGN | 23,693 | $18.7M |
| CYTK | 8,184 | $507K |
| Total | $19.3M |
Shares reported on the most recent Form 4, priced at the 2026-09-15 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CYTK | SELL | 2026-09-15 | 2026-09-15 | $72.13 | $72K | -7.3% | -8.3% | — |
| CYTK | SELL | 2026-09-11 | 2026-09-11 | $74.66 | $75K | -10.6% | -14.7% | — |
| REGN | SELL | 2023-08-23 | 2023-08-25 | $844.00 | $188K | -1.0% | +0.1% | -4.2% |
| REGN | SELL · 10b5-1 | 2023-03-27 | 2023-03-29 | $823.30 | $1.8M | +0.4% | -1.7% | -12.2% |
| REGN | SELL | 2023-02-03 | 2023-02-07 | $775.40 | $2.1M | -2.3% | -2.9% | -1.9% |
| REGN | SELL | 2022-12-02 | 2022-12-02 | $756.66 | $462K | -1.6% | -5.5% | +0.9% |
| REGN | SELL | 2022-11-01 | 2022-11-02 | $758.04 | $631K | +2.2% | +5.6% | +4.5% |
| REGN | SELL | 2022-10-17 | 2022-10-18 | $739.50 | $265K | +4.4% | +2.8% | +1.2% |
| REGN | SELL | 2022-04-08 | 2022-04-11 | $734.38 | $2.9M | -4.5% | -14.9% | -14.7% |
| REGN | SELL | 2022-04-01 | 2022-04-01 | $695.66 | $429K | +4.6% | -6.9% | -15.6% |
| REGN | SELL | 2022-03-29 | 2022-03-30 | $687.94 | $3.6M | +3.8% | -5.3% | -14.6% |
| REGN | SELL | 2022-03-21 | 2022-03-23 | $693.00 | $208K | +4.7% | +3.1% | -11.9% |
| REGN | SELL | 2022-03-16 | 2022-03-18 | $678.95 | $260K | +0.7% | +5.2% | -19.0% |
| REGN | SELL | 2021-12-13 | 2021-12-14 | $662.50 | $77K | -1.9% | -4.8% | +1.5% |
| REGN | SELL | 2021-12-10 | 2021-12-10 | $666.57 | $808K | -5.5% | -4.9% | -3.5% |
| REGN | SELL | 2021-11-17 | 2021-11-18 | $645.08 | $879K | -3.3% | -7.6% | -3.3% |
| REGN | SELL | 2021-08-09 | 2021-08-10 | $614.30 | $553K | +7.7% | +4.9% | +1.1% |
| REGN | SELL | 2020-08-04 | 2020-08-05 | $654.46 | $911K | -1.3% | -7.7% | -11.4% |
| REGN | SELL | 2020-07-21 | 2020-07-22 | $647.58 | $253K | +1.1% | -5.1% | -9.6% |
| REGN | SELL | 2020-07-14 | 2020-07-14 | $640.50 | $742K | -5.1% | -4.8% | -6.3% |
| REGN | SELL | 2020-07-08 | 2020-07-09 | $639.38 | $1.3M | +0.0% | -4.8% | -7.4% |
| REGN | SELL | 2020-06-29 | 2020-06-30 | $612.60 | $339K | -1.5% | +1.0% | -8.5% |
| REGN | SELL | 2020-06-23 | 2020-06-24 | $631.86 | $483K | +6.0% | +0.7% | -5.5% |
| REGN | SELL | 2020-06-11 | 2020-06-12 | $610.88 | $984K | +3.5% | +5.4% | -5.9% |
| REGN | SELL | 2020-06-09 | 2020-06-10 | $608.03 | $5.2M | +1.2% | -0.0% | -9.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.