Insider · CIK 0001695302
Brett Argirakis
Files at MTX (MINERALS TECHNOLOGIES INC). First filing Dec 18, 2023, latest Nov 25, 2025.
In brief
Brett Argirakis files SEC Form 4 as president at MTX (MINERALS TECHNOLOGIES INC). Since Dec 18, 2023, Brett Argirakis has reported 0 open-market buys worth $0 and 3 open-market sells worth $749k, the latest filed on Nov 25, 2025.
A track record needs three past buys with six months of prices behind them; Brett Argirakis has 0, so none is measured yet.
The newest scored trade: sold $381k of MTX on Nov 21, 2025, filed Nov 25, 2025, scored 26 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $381k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MTX: MINERALS TECHNOLOGIES INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 26Weak | MTXsell MINERALS TECHNOLOGIES INC | $381k 6,501 shares | -19% | +16% from low-30% from high | |
| 32Weak | MINERALS TECHNOLOGIES INC | $190k 2,259 shares | -9% | +74% from low-3% from high | |
| 37Weak | MINERALS TECHNOLOGIES INC | $177k 2,655 shares | -12% | +37% from low-8% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Nov 21, 2025 | MTX MINERALS TECHNOLOGIES INC | 6,501 0.02% of outstanding | $381k | Nov 21, 2025 | none |
| Jun 17, 2024 | MTX MINERALS TECHNOLOGIES INC. | 2,259 0.01% of outstanding | $190k | Jun 17, 2024 | none |
| Dec 14, 2023 | MTX MINERALS TECHNOLOGIES INC. | 2,655 0.01% of outstanding | $177k | Dec 14, 2023 | none |
Transactions
Every row this insider has filed, 42 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jan 23, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +3,247 | $0.00 | $0 | 32,504 | Jan 27, 2026 |
| Jan 23, 2026 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,413 | $68.77 | $97k | 31,091 | Jan 27, 2026 |
| Jan 26, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,672 | $0.00 | $0 | 33,763 | Jan 27, 2026 |
| Jan 26, 2026 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,163 | $68.89 | $80k | 32,600 | Jan 27, 2026 |
| Jan 23, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -3,247 | $0.00 | $0 | 24,244 | Jan 27, 2026 |
| Jan 26, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -2,672 | $0.00 | $0 | 21,572 | Jan 27, 2026 |
| Jan 21, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +3,112 | $0.00 | $0 | 30,714 | Jan 23, 2026 |
| Jan 21, 2026 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,457 | $66.92 | $98k | 29,257 | Jan 23, 2026 |
| Jan 21, 2026 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -3,112 | $0.00 | $0 | 27,491 | Jan 23, 2026 |
| Jan 20, 2026 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Deferred Restricted Stock Units (DRSUs)derivative | +12,101 | $0.00 | $0 | 30,603 | Jan 22, 2026 |
| Jan 20, 2026 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Employee Stock Option (Right to Buy)derivative | +10,393 | $0.00 | $0 | 10,393 | Jan 22, 2026 |
| Nov 21, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +6,501 | $38.29 | $249k | 34,103 | Nov 25, 2025 |
| Nov 21, 2025 | MTX MINERALS TECHNOLOGIES INC | SOpen-market sale Common Stock | -6,501 | $58.68 | $381k | 27,602 | Nov 25, 2025 |
| Nov 21, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise EMPLOYEE Stock Option (Right to Buy)derivative | -6,501 | $0.00 | $0 | 0 | Nov 25, 2025 |
| Jan 27, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,169 | $0.00 | $0 | 28,546 | Jan 29, 2025 |
| Jan 27, 2025 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -944 | $76.19 | $72k | 27,602 | Jan 29, 2025 |
| Jan 27, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -2,169 | $0.00 | $0 | 18,502 | Jan 29, 2025 |
| Jan 24, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,672 | $0.00 | $0 | 27,540 | Jan 28, 2025 |
| Jan 24, 2025 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,163 | $75.68 | $88k | 26,377 | Jan 28, 2025 |
| Jan 24, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -2,672 | $0.00 | $0 | 20,671 | Jan 28, 2025 |
| Jan 23, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +3,248 | $0.00 | $0 | 26,350 | Jan 27, 2025 |
| Jan 23, 2025 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,482 | $75.65 | $112k | 24,868 | Jan 27, 2025 |
| Jan 23, 2025 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -3,248 | $0.00 | $0 | 23,343 | Jan 27, 2025 |
| Jan 21, 2025 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Deferred Restricted Stock Units (DRSUs)derivative | +9,336 | $0.00 | $0 | 26,591 | Jan 23, 2025 |
| Jan 21, 2025 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Employee Stock Option (Right to Buy)derivative | +8,018 | $0.00 | $0 | 8,018 | Jan 23, 2025 |
| Jun 17, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,630 | $60.19 | $158k | 25,361 | Jun 18, 2024 |
| Jun 17, 2024 | MTX MINERALS TECHNOLOGIES INC | SOpen-market sale Common Stock | -2,259 | $83.95 | $190k | 23,102 | Jun 18, 2024 |
| Jun 17, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Employee Stock Option (Right to Buy)derivative | -2,630 | $0.00 | $0 | 0 | Jun 18, 2024 |
| Jan 25, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,169 | $0.00 | $0 | 22,583 | Jan 29, 2024 |
| Jan 25, 2024 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -954 | $66.09 | $63k | 21,629 | Jan 29, 2024 |
| Jan 26, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +1,966 | $0.00 | $0 | 23,595 | Jan 29, 2024 |
| Jan 26, 2024 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -864 | $66.51 | $57k | 22,731 | Jan 29, 2024 |
| Jan 25, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -2,169 | $0.00 | $0 | 19,221 | Jan 29, 2024 |
| Jan 26, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -1,966 | $0.00 | $0 | 17,255 | Jan 29, 2024 |
| Jan 24, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,672 | $0.00 | $0 | 21,683 | Jan 26, 2024 |
| Jan 24, 2024 | MTX MINERALS TECHNOLOGIES INC | FTax withholding Common Stock | -1,269 | $66.10 | $84k | 20,414 | Jan 26, 2024 |
| Jan 24, 2024 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Deferred Restricted Stock Units (DRSUs)derivative | -2,672 | $0.00 | $0 | 21,390 | Jan 26, 2024 |
| Jan 23, 2024 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Deferred Restricted Stock Units (DRSUs)derivative | +9,742 | $0.00 | $0 | 24,062 | Jan 25, 2024 |
| Jan 23, 2024 | MTX MINERALS TECHNOLOGIES INC | AGrant or award Employee Stock Option (Right to Buy)derivative | +8,367 | $0.00 | $0 | 8,367 | Jan 25, 2024 |
| Dec 14, 2023 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Common Stock | +2,655 | $57.97 | $154k | 21,666 | Dec 18, 2023 |
| Dec 14, 2023 | MTX MINERALS TECHNOLOGIES INC | SOpen-market sale Common Stock | -2,655 | $66.84 | $177k | 19,011 | Dec 18, 2023 |
| Dec 14, 2023 | MTX MINERALS TECHNOLOGIES INC | MOption exercise Employee Stock Option (Right to Buy)derivative | -2,655 | $0.00 | $0 | 0 | Dec 18, 2023 |
Questions about Brett Argirakis
Answered from the filings on this page, as of the latest one.
Is Brett Argirakis buying or selling?
In the last 12 months Brett Argirakis reported 0 open-market buys worth $0 and 1 open-market sell worth $381k on SEC Form 4; the latest was sold $381k of MTX on Nov 21, 2025. Grants, option exercises and tax withholding are not counted.
How did Brett Argirakis's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Brett Argirakis has 0.
Where does Brett Argirakis file Form 4?
Brett Argirakis has filed Form 4 at MTX (MINERALS TECHNOLOGIES INC) as Group President. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.