GEORGE YANCOPOULOS
CIK 1226690 · Bd. Co-Chair, President & CSO · last filed 2026-01-05
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$354.56M
Companies
1
Total Filings
59
Lifetime Open-Market Net
-$467.64M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| REGN | Bd. Co-Chair, President & CSO | 510,460 | $694.59 | $354.56M | -$467.64M | 57 | 2026-01-05 |
Recent Filings · Page 2 of 6
59 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-01-02 | REGN | Notice (144) | −4,212 | -$3.79M | EDGAR |
| 2023-12-13 | REGN | Mixed | +12,314 | -$10.84M | EDGAR |
| 2023-03-27 | REGN | Sell (S) | −3,656 | -$2.94M | EDGAR |
| 2023-02-08 | REGN | Sell (S) | −13,189 | -$10.55M | EDGAR |
| 2021-12-23 | REGN | Mixed | +132,170 | -$91.40M | EDGAR |
| 2021-08-17 | REGN | Sell (S) | −50,000 | -$31.26M | EDGAR |
| 2021-08-06 | REGN | Mixed | −50,000 | -$30.00M | EDGAR |
| 2021-06-23 | REGN | Mixed | +2,108 | -$43.11M | EDGAR |
| 2021-01-05 | REGN | Grant (A) | — | $0 | EDGAR |
| 2020-12-31 | REGN | Mixed | +123,804 | -$84.06M | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.