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SUMME GREGORY L

DirectorCIK 0001143422

Largest Purchase

$1.1M

Avantor, Inc. (AVTR)

Oct 31

Profile

Filings
10
Buy transactions
2
Sell transactions
0
Companies
4
Active
2025–2026

SUMME GREGORY L, Director, has filed 10 SEC reports (2025–2026), spread across 4 companies, totaling $2.7M in disclosed volume. Weighing $2.1M bought versus $0 sold, the history is heavily weighted toward buying. The largest single open-market purchase on record is $1.1M in Avantor, Inc.. Data is sourced from official SEC Form 3, 4, and 5 filings.

Trading History

10 loaded
Jul 16GRAL
GRAIL, Inc.
SUMME GREGORY LDirectorGrant$31.8K
Jun 22GRAL
GRAIL, Inc.
SUMME GREGORY LDirectorGrant$350.0K
Jun 12NXPI
NXP Semiconductors N.V.
SUMME GREGORY LDirectorExercise$152.6K
Jun 10UP
Wheels Up Experience Inc.
SUMME GREGORY LDirectorGrant$0
May 11AVTR
Avantor, Inc.
SUMME GREGORY LDirectorGrant$0
Feb 12AVTR
Avantor, Inc.
SUMME GREGORY LDirectorBuy$940.0K
Jan 16GRAL
GRAIL, Inc.
SUMME GREGORY LDirectorGrant$32.1K
Oct 31AVTR
Avantor, Inc.
SUMME GREGORY LDirectorBuy$1.1M
Oct 16GRAL
GRAIL, Inc.
SUMME GREGORY LDirectorGrant$32.1K
Jul 17GRAL
GRAIL, Inc.
SUMME GREGORY LDirectorGrant$31.8K

10 filings