Atria Investments, Inc MTX — MINERALS TECHNOLOGIES INC

Ownership history in Atria Investments, Inc  ·  7 quarters on record

AI Ownership Summary

Atria Investments, Inc reported MINERALS TECHNOLOGIES INC (MTX) in 7 quarterly 13F filings from 2025 Q1 through 2026 Q3. Peak portfolio weight reached 0.01% in 2025 Q1. The latest visible filing shows MTX at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this MTX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Atria Investments, Inc's position in MINERALS TECHNOLOGIES INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q3

MTX was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.01% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2026 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Atria Investments, Inc held MTX — position size vs. price
% of Fund (quarterly)    MTX price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q3 ADDED — — — 6,640 +567 +9.3% 0.00% $434K 2026-10-15 $63.75
2026 Q2 REDUCED — — — 6,073 -132 -2.1% 0.00% $449K 2026-07-28 $75.16
2026 Q1 REDUCED 9.3% +9.3% ❌ 6,205 -635 -9.3% 0.00% $440K 2026-05-05 $78.75
2025 Q4 REDUCED — — — 6,840 -286 -4.0% 0.00% $417K 2026-02-05 $71.28
2025 Q3 REDUCED — — — 7,126 -200 -2.7% 0.01% $443K 2025-11-06 $55.23
2025 Q2 ADDED — — — 7,326 +1,064 +17.0% 0.00% $403K 2025-08-04 $56.04
2025 Q1 INITIATED — — — 6,262 — — 0.01% $398K 2025-05-06 $51.86

FAQ About Atria Investments, Inc and MTX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Atria Investments, Inc reported owning MTX?

Atria Investments, Inc reported MTX across 7 quarterly 13F filings, from 2025 Q1 through 2026 Q3.

What was the largest reported MTX position in Atria Investments, Inc's portfolio?

The largest reported portfolio weight for MTX was 0.01% in 2025 Q1.

What is the latest reported MTX position on this page?

The most recent filing on this page is 2026 Q3, when Atria Investments, Inc reported 6,640 shares, equal to 0.00% of portfolio, with an estimated market value of $434K.

What does the chart on this MTX ownership page compare?

The chart compares Atria Investments, Inc's quarterly MTX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Atria Investments, Inc time their MTX position?

Based on 13F filing dates vs. subsequent MTX price moves, Atria Investments, Inc correctly timed 3 out of 6 reported position changes (50%). The annualised alpha on MTX relative to SPY over the holding period was +873.9%.

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