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.
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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 3 of 7
61 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-02-01 | ATKR | Grant (A) | +4,277 | $0 | EDGAR |
| 2017-09-20 | Horizon Global Corp (HZN) Delisted | Sell (S) | −27,000 | -$442.3K | EDGAR |
| 2017-05-04 | ATKR | Grant (A) | +3,353 | $0 | EDGAR |
| 2017-03-16 | Horizon Global Corp (HZN) Delisted | Buy (P) | +10,800 | $146.6K | EDGAR |
| 2017-03-03 | Horizon Global Corp (HZN) Delisted | Grant (A) | +20,742 | $0 | EDGAR |
| 2016-03-08 | Horizon Global Corp (HZN) Delisted | Tax (F) | −3,115 | -$32.7K | EDGAR |
| 2016-03-03 | Horizon Global Corp (HZN) Delisted | Mixed | +81,135 | -$110.4K | EDGAR |
| 2015-11-02 | Horizon Global Corp (HZN) Delisted | Tax (F) | −1,593 | -$14.0K | EDGAR |
| 2015-10-09 | Horizon Global Corp (HZN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-10-08 | Horizon Global Corp (HZN) Delisted | Grant (A) | +96,286 | $0 | EDGAR |
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.