Joseph C. Breunig
CIK 1500401 · Exec VP, Chemicals · last filed 2026-05-21
Joseph C. Breunig is an Exec VP, Chemicals who has filed 74 SEC Form 4 insider transactions across 3 companies since 2010. The most recent filing, for MTX, was dated May 21, 2026. Across all open-market trades the lifetime net is −$34.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $93.7K 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.
$93.7K
3
74
-$34.8K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MTX | Director | 1,200 | $78.12 | $93.7K | $83.4K | 59 | 2026-05-21 |
| AXIALL CORP/DE/ (AXLL) Delisted | Exec VP, Chemicals | 81,381 | — | — | -$181.8K | 9 | 2015-09-02 |
| AXIALL CORP/DE/ (GGC) Delisted | Exec. VP, Chemicals | 51,773 | — | — | $63.6K | 6 | 2012-10-09 |
Recent Filings
74 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | MTX | Grant (A) | — | $0 | EDGAR |
| 2026-03-10 | MTX | Grant (A) | — | $0 | EDGAR |
| 2025-12-08 | MTX | Grant (A) | — | $0 | EDGAR |
| 2025-09-09 | MTX | Grant (A) | — | $0 | EDGAR |
| 2025-06-16 | MTX | Grant (A) | — | $0 | EDGAR |
| 2025-05-16 | MTX | Grant (A) | — | $0 | EDGAR |
| 2025-03-11 | MTX | Grant (A) | — | $0 | EDGAR |
| 2024-12-09 | MTX | Grant (A) | — | $0 | EDGAR |
| 2024-09-09 | MTX | Grant (A) | — | $0 | EDGAR |
| 2024-06-14 | MTX | Grant (A) | — | $0 | EDGAR |