Insider Trading & Ownership of Gregory L. Summe

Location: Waltham, MA
Summary: The estimated net worth of Gregory L. Summe is at least $17,833,988 dollars as of 11 May 2026. Gregory L. Summe is the Director of STATE STREET CORP and owns shares of STATE STREET CORP (STT) stock worth about $10M. Gregory L. Summe is the Director of Avantor, Inc. and owns shares of Avantor, Inc. (AVTR) stock worth about $3.79M. Gregory L. Summe is the Director of GRAIL, Inc. and owns shares of GRAIL, Inc. (GRAL) stock worth about $2.05M. Gregory L. Summe is the Director of NXP Semiconductors N.V. and owns shares of NXP Semiconductors N.V. (NXPI) stock worth about $1.59M. Gregory L. Summe is the Director of Wheels Up Experience Inc. and owns shares of Wheels Up Experience Inc. (UP) stock worth about $393.6K.
Signature: /s/ Scott Baker, as Attorney-in-Fact
All Insider Reports: All Insider Reports

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Key facts

Gregory L. Summe has 6 issuer positions tracked on this page.
Estimated disclosed ownership value: $17,833,988.
Recent insider filing activity is available below.

Change

Largest disclosed position: STATE STREET CORP ($10,002,300).
Past-year value change for that position: .

Research use

This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
You can cross-check role, issuer, and filing chronology directly against the SEC source.