A Mark Zeffiro

CIK 1446066 · President, CEO · last filed 2026-06-02

"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.

Loading insider history…
Disclosed Exposure

$6.59M

Companies

3

Total Filings

61

Lifetime Open-Market Net

-$4.90M

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
ATKR Director 23,945 $79.27 $1.90M -$1.25M 21 2026-06-02
Horizon Global Corp (HZN) Delisted President, CEO 342,696 $1.76 $603.1K -$295.7K 11 2018-03-05
TRS Executive Vice President & CFO 113,562 $41.32 $4.69M -$3.35M 29 2014-10-31

Recent Filings · Page 5 of 7

61 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2013-04-03 TRS Tax (F) −3,911 -$113.5K EDGAR
2013-03-12 TRS Sell (S) −10,000 -$290.1K EDGAR
2013-03-05 TRS Mixed +27,029 -$277.3K EDGAR
2012-03-13 TRS Mixed −2,055 -$711.9K EDGAR
2012-03-05 TRS Mixed +14,483 -$44.9K EDGAR
2011-06-06 TRS Tax (F) −1,632 -$32.7K EDGAR
2011-05-31 TRS Mixed +16,050 -$262.0K EDGAR
2011-05-12 TRS Sell (S) −15,134 -$339.0K EDGAR
2011-03-17 TRS Tax (F) −1,836 -$34.2K EDGAR
2011-03-03 TRS Mixed −492 -$694.6K EDGAR
Showing 4150 of 61
Page 5 of 7
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.