GEORGE L SING
CIK 1225471 · last filed 2026-01-06
"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.
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Disclosed Exposure
$21.81M
Companies
1
Total Filings
65
Lifetime Open-Market Net
-$146.52M
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 | Director | 31,407 | $694.59 | $21.81M | -$146.52M | 60 | 2026-01-06 |
Recent Filings · Page 2 of 7
65 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 |
|---|---|---|---|---|---|
| 2024-02-12 | REGN | Mixed | — | -$536.7K | EDGAR |
| 2024-02-09 | REGN | Notice (144) | −500 | -$477.5K | EDGAR |
| 2024-02-08 | REGN | Notice (144) | −500 | -$472.5K | EDGAR |
| 2024-01-04 | REGN | Grant (A) | +135 | $0 | EDGAR |
| 2023-01-05 | REGN | Grant (A) | +165 | $0 | EDGAR |
| 2022-03-01 | REGN | Sell (S) | −4,000 | -$2.47M | EDGAR |
| 2022-01-05 | REGN | Grant (A) | +191 | $0 | EDGAR |
| 2021-11-23 | REGN | Sell (S) | −3,000 | -$1.97M | EDGAR |
| 2021-11-18 | REGN | Sell (S) | −10,750 | -$7.03M | EDGAR |
| 2021-08-30 | REGN | Sell (S) | −1,700 | -$1.14M | 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.