Marc Stapley

CIK 1539796 · Chief Executive Officer · last filed 2026-06-23

Marc Stapley is a Chief Executive Officer who has filed 128 SEC Form 4 insider transactions across 3 companies since 2012. The most recent filing, for GKOS, was dated Jun 23, 2026. Across all open-market trades the lifetime net is −$32.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $43.4M 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.

Disclosed Exposure

$43.44M

Companies

3

Total Filings

128

Lifetime Open-Market Net

-$32.51M

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
GKOS	Director	39,327	$164.85	$6.48M	-$5.20M	27	2026-06-23
VCYT	Chief Executive Officer	578,545	$56.62	$32.76M	-$10.17M	30	2026-06-04
ILMN	EVP Strategy & Corp Developmt	21,466	$195.53	$4.20M	-$17.14M	60	2018-12-07

Recent Filings

128 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
2026-06-23	GKOS	Grant (A)	—	$0	EDGAR
2026-06-04	VCYT	Notice (144)	−138,051	-$6.72M	EDGAR
2026-06-04	VCYT	Mixed	−9,012	-$2.30M	EDGAR
2026-06-01	GKOS	Grant (A)	+1,878	$0	EDGAR
2026-03-10	VCYT	Grant (A)	+92,099	$0	EDGAR
2026-03-06	VCYT	Sell (S)	−45,523	-$1.64M	EDGAR
2026-03-04	VCYT	Notice (144)	−45,523	-$1.60M	EDGAR
2026-03-04	VCYT	Tax (F)	−19,455	-$700.6K	EDGAR
2026-03-02	VCYT	Mixed	+103,233	-$1.39M	EDGAR
2026-01-26	GKOS	Mixed	—	-$1.55M	EDGAR

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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.