John Smollen

CIK 2080703 · EVP, New Product Development · last filed 2026-06-18

John Smollen is an EVP, New Product Development who has filed 5 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing, for MIAX, was dated Jun 18, 2026. Across all open-market trades the lifetime net is +$115.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $11.4M 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

$11.45M

Companies

1

Total Filings

5

Lifetime Open-Market Net

$115.0K

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
MIAX	EVP, New Product Development	269,878	$42.41	$11.45M	$115.0K	5	2026-06-18

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
2026-06-18	MIAX	Grant (A)	+7,455	$0	EDGAR
2026-04-01	MIAX	Tax (F)	−362	-$13.6K	EDGAR
2025-09-15	MIAX	Mixed	+97,946	-$146.3K	EDGAR
2025-08-19	MIAX	Mixed	+164,839	$0	EDGAR
2025-08-15	MIAX	Buy (P)	+5,000	$115.0K	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.