Dimensional's passive 5.1% stake is a routine disclosure by a large index/quant manager. Monitor for any future conversion to a 13D (activist filing) or significant changes in stake size, but no near-term catalyst is implied.
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Executive Summary
Dimensional Fund Advisors LP disclosed a 5.1% passive stake in Mativ Holdings, Inc. as of September 30, 2026, holding 2,789,161 shares. This is a new 13G filing by Dimensional, a large quantitative asset manager, indicating a meaningful passive position but no activist intent.
Key Financial Metrics
Key Facts
- Dimensional Fund Advisors LP reported beneficial ownership of 2,789,161 shares of Mativ Holdings common stock.
- The stake represents 5.1% of shares outstanding.
- Dimensional is a registered investment adviser filing under Rule 13d-1(b) (passive investor).
- The filing certifies the securities were acquired in the ordinary course of business and not to influence control.
- This is a new Schedule 13G filing by Dimensional; prior 13G filings for MATV were by Allspring Global Investments and Vanguard.
Financial Impact
5.1% passive stake with no disclosed dollar value — not a material financial event.
Risk Factors
- No material risk — passive 13G filings are not associated with activist pressure or control events.
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0000354204-26-001071 |
| Document: 0000354204-26-001071-index.html | 0000354204-26-001071 |
| Document: 0000354204-26-001071.txt | 0000354204-26-001071 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 8, 2026 18d ago | SC 13G | $11.86 | awaiting T+20 | — | $11.59 (−2.28%) |
Oct 7, 2026 19d ago | SC 13G/A | $11.92 | awaiting T+20 | — | $11.59 (−2.77%) |
May 6, 2026 24w ago | 8-K | $9.40 $7.58 | ▼ −19.36% | ▼ −22.50% | $11.59 (+23.30%) |
Mar 17, 2026 31w ago | DEFA14A | $8.53 $9.44 | ▲ +10.67% | ▲ +4.62% | $11.59 (+35.87%) |
US Market Status
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