| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Group President | Senior Vice President | Vice President
1 company
Brett Argirakis is Group President at MTX. Brett Argirakis's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $2.1M at current prices.
Historically, Brett Argirakis's trades have earned a below-average insider score of 44/100 across 4 rated trades. Over a 12-month horizon, 33.3% of those trades were profitable, with an average 12-month return of +1.3%.
The MTX filings lean toward selling, a net 12,342 shares.
Brett Argirakis has 31 Form 4 filings on record from January 2018 to January 2026, all as Group President at Minerals Technologies (MTX), 2018–2026.
The 74 reported transactions were 28 option exercises, 24 tax withholdings, 18 option or other derivative awards and 4 open-market sales.
Counted by filing, the open-market trades come to no purchases and 4 sales worth about $804K.
The largest open-market sale was 6,501 shares of MTX at an average $58.68 on November 21, 2025, about $381K.
None of the 3 sales since April 2023 was marked as made under a Rule 10b5-1 trading plan.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 21, 2025 | MTX Minerals Technologies Inc | Group President | Sale+OE | 6,501 | $58.68 | $381,458.53 | -19.1% | +23.0% | - | |
| Jun 17, 2024 | MTX Minerals Technologies Inc | Group President | Sale+OE | 2,259 | $83.95 | $189,643.05 | -8.9% | -14.1% | -36.0% | |
| Dec 14, 2023 | MTX Minerals Technologies Inc | Group President | Sale+OE | 2,655 | $66.84 | $177,460.20 | -12.3% | +9.6% | +19.2% | |
| Dec 20, 2022 | MTX Minerals Technologies Inc | Senior Vice President | Sale+OE | 927 | $60.03 | $55,651.89 | -5.6% | -5.8% | +12.8% |