Company · Ownership research

MATERION Corp MTRN

CIK 0001104657

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 128 rows; the complete set is available through the API.

Insider filings on file run through 2026-09-09.

Insider purchases & sales

Purchased: $0.00
Sold: $23.50M

Sep 1, 2023 – Sep 9, 2026
Available records · partial months are marked ·

202610 of 16 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-09-01	LIGGETT EMILY M Director	Sale	$235.21K 1,012 shares sold	24.25% sold Direct holding	▾
2026-08-31	KHILNANI VINOD M Director	Sale	$470.32K 2,000 shares sold	15.18% sold Direct holding	▾
2026-08-07	Chadwick Shelly Marie Vice President, Finance & CFO	Sale	$499.56K 1,705 shares sold	10.06% sold Direct holding	▾
2026-08-07	Vijayvargiya Jugal K. President and CEO · Director	Sale	$7.10M 24,336 shares sold	17.26% sold Direct holding	▾
2026-08-07	Solomon Darlene J. S. Director	Sale	$1.08M 3,705 shares sold	12.18% sold Direct holding	▾
2026-05-29	PHILLIPPY ROBERT J Director	Sale	$765.16K 3,500 shares sold	48.86% sold Direct holding	▾
2026-05-13	KHILNANI VINOD M Director	Sale	$517.50K 2,500 shares sold	15.95% sold Direct holding	▾
2026-05-08	Chadwick Shelly Marie Vice President, Finance & CFO	Sale	$237.06K 1,192 shares sold	7.25% sold Direct holding	▾
2026-03-03	Fashinpaur Melissa A Chief Accounting Officer	Sale	$49.44K 309 shares sold	49.92% sold Direct holding	▾
2026-03-03	Chadwick Shelly Marie Vice President, Finance & CFO	Sale10b5-1 footnote	$406.39K 2,539 shares sold	14.28% sold Direct holding	▾

Showing 16 / 16 record groups in 2026. The complete set is available through the API.

MATERION Corp · MTRN

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 16 of 16 purchase / sale groups and 30 of 128 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"MTRN","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.