SHULAR CRAIG S 4

What Happened

• Craig S. Shular, a director of MATERION Corp (MTRN), was granted a total of 52.259 restricted stock units (RSUs) on 2026-03-06: 50.259 RSUs listed as an award and 2 RSUs listed as a derivative acquisition. The reported acquisition price is $0.00, so the grant involved no cash purchase; the RSUs represent rights to receive shares upon vesting.

Key Details

• Transaction date: 2026-03-06; Form 4 filed: 2026-03-10 (filed 4 days after the transaction; note Form 4s are typically due within 2 business days, so this may be a delayed filing).
• Price: $0.00 per RSU; total reported cash value $0.
• Shares owned after transaction: not specified in the filing.
• Footnotes: F1 — each RSU converts to one share of MTRN common stock upon vesting. F2 — the 2 RSUs were dividend equivalents reinvested and will vest at the same time as the related RSUs (earlier of May 8, 2026, and the date of the next annual meeting). F3 — (general note) expiration date equals date exercisable.
• Transaction type code: A = Award/Grant; derivative entry explains the dividend-equivalent RSUs.

Context

• RSU awards are compensation-related grants that convert to actual shares only when they vest; they are not open-market purchases or sales and do not by themselves indicate a buy/sell market action. The reinvested dividend-equivalent RSUs simply increase the award amount and follow the vesting schedule of the underlying grant.