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8-K filings in September 2024, explained

172 material Form 8-K filings that 152 companies we cover made with the SEC in September 2024, each read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). All of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).

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ENTGENTEGRIS INC Sep 5, 5:20 PM ET

Entegris Appoints Mary Puma, Former Axcelis CEO, to Board of Directors

Neutral leadership Written later 5.02

Entegris, Inc. appointed Mary Puma, former president and chief executive officer of Axcelis Technologies, as a director effective September 5, 2024, bringing the board to eight members. The filing describes standard non-employee director pay for Ms. Puma and a board committee assignment that has not yet been determined, so it is routine governance news with limited direct financial effect on shareholders.

Mary Puma appointed to Entegris board effective September 5, 2024; board has determined she is independent under Nasdaq rules
Ms. Puma received a prorated award of 1,207 restricted stock units on September 5, 2024
She will receive a prorated portion of the $105,000 annual non-employee director retainer
Committee assignments not yet determined; Entegris will file an amendment within four business days after they are set

Read the filing on SEC.gov ↗

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.

Briefs marked “Written later” were written in November 2026 for filings that were by then more than three weeks old, so months before mid-October 2026 hold a selection: every material 8-K of the past year for the 100 largest companies we cover and the last 15 important 8-Ks of every other one. Briefs the number check holds back are not shown or counted. Also: the last 45 days, briefs by company, A–Z and the live SEC filings wire.