Materion Corp. 13F holders
Of the 44 funds followed here, 10 reported a position in Materion Corp. in a 13F for the quarter ended 30 June 2026. The largest: Capital Research Global Investors, 1.0 million shares worth $297.5 million, 0.0% of its reported book. New this quarter: Point72 Asset Management. Sold out: Two Sigma Investments.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Capital Research Global Investors | 1,000,456 | $297.5 million | 0.0% | +210,583 | added | 30 June 2026 | 13F |
| Geode Capital Management | 591,006 | $175.8 million | 0.0% | +87,038 | added | 30 June 2026 | 13F |
| Citadel Advisors | 90,153 | $26.8 million | 0.0% | +40,280 | added | 30 June 2026 | 13F |
| FMR LLC | 75,705 | $22.5 million | 0.0% | +63,196 | added | 30 June 2026 | 13F |
| Norges Bank | 25,900 | $7.7 million | 0.0% | held | 30 June 2026 | 13F | |
| Millennium Management | 12,224 | $3.6 million | 0.0% | -2,286 | trimmed | 30 June 2026 | 13F |
| Point72 Asset Management | 3,300 | $981,387 | 0.0% | +3,300 | new | 30 June 2026 | 13F |
| Bridgewater Associates | 3,213 | $955,514 | 0.0% | -449 | trimmed | 30 June 2026 | 13F |
| Soros Fund Management | 1,437 | $427,349 | 0.0% | -19,705 | trimmed | 30 June 2026 | 13F |
| ARK Investment Management | 455 | $135,312 | 0.0% | -116 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 0 | $0 | 0.0% | -6,000 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 14 May 2026 | 13G/A | Capital Research Global Investors and 1 other | 789,873 | 3.8% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 April 2026 | 13G | Vanguard Capital Management and 1 other | 1.1 million | 5.2% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 1.4 million | 6.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 January 2026 | 13G/A | The Vanguard Group and 1 other | 2.3 million | 11.3% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 4 September 2026 | 1,995 | $240.56 | SEC |
| 21 August 2026 | 55 | $232.72 | SEC |
| 14 August 2026 | 20 | $282.36 | SEC |
| 10 August 2026 | 23 | $290.05 | SEC |
| 7 August 2026 | 216 | $278.26 | SEC |
| 5 August 2026 | 142 | $227.10 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
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Largest in the window: 1,995 on 4 September 2026. A fail is an operational fact about settlement, not a position.Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to MTRN by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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