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GEORGE L SING

CIK 1225471 · last filed 2026-01-06

GEORGE L SING is a corporate insider who has filed 65 SEC Form 4 insider transactions across 1 company since 2007. The most recent filing, for REGN, was dated Jan 6, 2026. Across all open-market trades the lifetime net is −$146.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $21.8M across reported positions.

"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

$21.82M

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 $694.70 $21.82M -$146.52M 60 2026-01-06

Recent Filings

65 filings
Insider 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
2026-01-06 REGN Grant (A) +155 $0 EDGAR
2025-12-31 REGN Mixed +3,024 $634 EDGAR
2025-01-03 REGN Mixed +1,556 $141 EDGAR
2024-09-05 REGN Gift (G) −1,200 $0 EDGAR
2024-05-06 REGN Mixed +1,123 $61 EDGAR
2024-02-28 REGN Mixed −500 -$785.8K EDGAR
2024-02-26 REGN Mixed −2,000 -$2.77M EDGAR
2024-02-26 REGN Notice (144) −1,000 -$992.5K EDGAR
2024-02-23 REGN Notice (144) −500 -$492.5K EDGAR
2024-02-22 REGN Notice (144) −3,000 -$1.93M EDGAR
Showing 1–10 of 65
Page 1 of 7
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.