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Curran Simpson

CIK 1346164 · Chief Executive Officer · last filed 2026-07-06

Curran Simpson is a Chief Executive Officer who has filed 66 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for RGNX, was dated Jul 6, 2026. Across all open-market trades the lifetime net is −$25.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.9M 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

$3.87M

Companies

2

Total Filings

66

Lifetime Open-Market Net

-$25.77M

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
RGNX Chief Executive Officer 343,418 $11.28 $3.87M -$17.42M 39 2026-07-06
HUMAN GENOME SCIENCES INC (HGSI) Delisted Sr. VP, Operations 0 — — -$8.35M 24 2012-08-01

Recent Filings

66 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
2026-07-06 RGNX Mixed −4,414 -$67.8K EDGAR
2026-01-08 RGNX Grant (A) +144,864 $0 EDGAR
2026-01-06 RGNX Tax (F) −18,559 -$267.2K EDGAR
2025-10-10 RGNX Sell (S) −20,811 -$262.6K EDGAR
2025-10-09 RGNX Notice (144) −20,811 -$254.3K EDGAR
2025-10-01 RGNX Sell (S) −7,624 -$76.5K EDGAR
2025-09-12 RGNX Sell (S) −7,734 -$77.5K EDGAR
2025-09-10 RGNX Notice (144) −15,358 -$151.9K EDGAR
2025-07-03 RGNX Tax (F) −4,701 -$38.7K EDGAR
2025-01-14 RGNX Grant (A) — $0 EDGAR
Showing 1–10 of 66
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.