Michael Anthony Costonis

CIK 1758026 · EVP, Head of Marketing · last filed 2023-03-17

Michael Anthony Costonis is an EVP, Head of Marketing who has filed 8 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing, for CNA, was dated Mar 17, 2023. Current disclosed insider exposure totals $6.0M 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

$6.03M

Companies

1

Total Filings

8

Lifetime Open-Market Net

$0

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
CNA	EVP, Head of Marketing	124,664	$48.36	$6.03M	$0	8	2023-03-17

Recent Filings

8 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
2023-03-17	CNA	Mixed	+16,491	-$626.2K	EDGAR
2022-03-17	CNA	Mixed	+25,289	-$312.8K	EDGAR
2021-03-16	CNA	Mixed	+36,851	-$102.8K	EDGAR
2021-03-02	CNA	Tax (F)	−2,014	-$87.4K	EDGAR
2020-03-17	CNA	Grant (A)	+15,366	$0	EDGAR
2020-03-02	CNA	Tax (F)	−4,051	-$167.3K	EDGAR
2019-03-19	CNA	Grant (A)	+5,141	$0	EDGAR
2019-03-05	CNA	Tax (F)	−4,051	-$176.0K	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.