Heidy Kingwan Chow

CIK 1806477 · Chief Financial Officer · last filed 2026-06-15

Heidy Kingwan Chow is a Chief Financial Officer who has filed 5 SEC Form 4 insider transactions across 3 companies since 2021. The most recent filing, for VHC, was dated Jun 15, 2026. Current disclosed insider exposure totals $431.2K across reported positions. 4 SEC filings were submitted jointly with VirnetX Holding Corp.

"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.

Disclosed Exposure

$431.2K

Companies

3

Total Filings

5

Lifetime Open-Market Net

$0

Filer Profile

Reported Address

92 KESTREL
IRVINE, CA 92618

Related Filers

VirnetX Holding Corp — 4 joint filings, latest 2026-06-15

Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
VHC	Director	37,500	$11.50	$431.2K	$0	3	2026-06-15
SNAL	Chief Financial Officer	—	$2.58	—	$0	1	2022-11-14
FKWL	Director	—	$2.38	—	$0	1	2021-12-30

Recent Filings

5 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
2026-06-15	VHC	Grant (A)	+7,500	$0	EDGAR
2025-06-16	VHC	Grant (A)	+7,500	$0	EDGAR
2024-06-18	VHC	Grant (A)	+22,500	$0	EDGAR
2022-11-14	SNAL	Grant (A)	—	$0	EDGAR
2021-12-30	FKWL	Grant (A)	—	$0	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.