DIMENSIONAL FUND ADVISORS LP MAGN — MAGNERA CORP

Ownership history in DIMENSIONAL FUND ADVISORS LP  ·  8 quarters on record

AI Ownership Summary

DIMENSIONAL FUND ADVISORS LP reported MAGNERA CORP (MAGN) in 8 quarterly 13F filings from 2024 Q4 through 2026 Q3. The latest visible filing shows MAGN 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 MAGN ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was DIMENSIONAL FUND ADVISORS LP's position in MAGNERA CORP, 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

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

High-water mark
Peak Conviction
0.0% in 2024 Q4

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

Time in book
Holding Window
2024 Q4 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.

MAGN stock page DIMENSIONAL FUND ADVISORS LP fund profile DIMENSIONAL FUND ADVISORS LP full holdings
How DIMENSIONAL FUND ADVISORS LP held MAGN — position size vs. price
% of Fund (quarterly)    MAGN price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q3 ADDED — — — 846,620 +275,276 +48.2% 0.00% $9.6M 2026-11-04 $12.69
2026 Q2 ADDED — — — 571,344 +317,436 +125.0% 0.00% $6.7M 2026-08-11 $12.46
2026 Q1 ADDED — — — 253,908 +131,772 +107.9% 0.00% $2.4M 2026-05-07 $11.75
2025 Q4 REDUCED 52.1% -37.2% ✅ 122,136 -132,621 -52.1% 0.00% $1.8M 2026-02-12 $13.59
2025 Q3 REDUCED 49.1% +28.2% ❌ 254,757 -245,517 -49.1% 0.00% $3.0M 2025-11-12 $9.44
2025 Q2 REDUCED 36.5% -7.2% ✅ 500,274 -287,856 -36.5% 0.00% $6.0M 2025-08-12 $13.48
2025 Q1 REDUCED 15.6% -33.5% ✅ 788,130 -145,994 -15.6% 0.00% $14.3M 2025-05-13 $15.05
2024 Q4 INITIATED — — — 934,124 — — 0.00% $17.0M 2025-02-13 $22.99

🏢 Other funds also holding MAGN

As of 2026 Q3 — sorted by position size

PRIVATE MANAGEMENT GROUP INC 3Y 7Y 0.18% Tactive Advisors, LLC 0.1% State of Wyoming 3Y 0.01% Y-Intercept (Hong Kong) Ltd 3Y 0.01% BFSG, LLC 3Y 7Y 0.01% Assenagon Asset Management S.A. 3Y 7Y 0.0% Essential Partners LLC 0.0% Valeo Financial Advisors, LLC 3Y 7Y 0.0% GAMMA Investing LLC 0.0% Investors Research Corp 3Y 7Y 0.0%

FAQ About DIMENSIONAL FUND ADVISORS LP and MAGN

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

How long has DIMENSIONAL FUND ADVISORS LP reported owning MAGN?

DIMENSIONAL FUND ADVISORS LP reported MAGN across 8 quarterly 13F filings, from 2024 Q4 through 2026 Q3.

What was the largest reported MAGN position in DIMENSIONAL FUND ADVISORS LP's portfolio?

The largest reported portfolio weight for MAGN was 0.00% in 2024 Q4.

What is the latest reported MAGN position on this page?

The most recent filing on this page is 2026 Q3, when DIMENSIONAL FUND ADVISORS LP reported 846,620 shares, equal to 0.00% of portfolio, with an estimated market value of $9.6M.

What does the chart on this MAGN ownership page compare?

The chart compares DIMENSIONAL FUND ADVISORS LP's quarterly MAGN 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 DIMENSIONAL FUND ADVISORS LP time their MAGN position?

Based on 13F filing dates vs. subsequent MAGN price moves, DIMENSIONAL FUND ADVISORS LP correctly timed 5 out of 7 reported position changes (71%). The annualised alpha on MAGN relative to SPY over the holding period was -38.0%.

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