SUMME GREGORY L

Director at STATE STREET CORP · on record since Apr 19, 2006
Director at REVVITY, INC. · on record since Feb 2, 2006
Director at AUTOMATIC DATA PROCESSING INC · on record since Sep 11, 2007
Director at Freescale Semiconductor, Ltd. · on record since May 25, 2011
Director at GRAIL, Inc. · on record since Apr 17, 2026
Director at Avantor, Inc. · on record since May 11, 2026
Director at Wheels Up Experience Inc. · on record since Jun 10, 2026
Director at LMI AEROSPACE INC · on record since Jul 28, 2014
Director at NXP Semiconductors N.V. · on record since Jun 12, 2026
10% owner at Regional Management Corp. · on record since Jun 9, 2016
Chairman and CEO at REVVITY, INC. · on record since Jan 27, 2005
Director at Xos, Inc. · on record since Oct 6, 2020
Director at Virgin Orbit Holdings, Inc. · on record since Mar 22, 2021

Insider trading activity of SUMME GREGORY L

Transactions on record: 513; since Oct 24, 2003

Open-market buys: 10; $7.1M

Open-market sells: 358; $99M

Companies traded: 11; last filing Jul 16, 2026

Figures computed from official regulatory filings — .

Companies where SUMME GREGORY L has traded

GRAIL, Inc.12 tx · $849.9K · Jul 16, 2026
NXP Semiconductors N.V.35 tx · $2.8M · Jun 12, 2026
Wheels Up Experience Inc.3 tx · Jun 10, 2026
15 tx · $4.6M · May 11, 2026
30 tx · $2.6M · Feb 19, 2025
6 tx · $20.8M · Jan 3, 2022
6 tx · $22.2M · Jun 28, 2017
3 tx · $2.4M · Jul 29, 2016
3 tx · Dec 9, 2015
25 tx · $2.5M · Nov 25, 2013
375 tx · $110.9M · Mar 3, 2009

Track record of SUMME GREGORY L

Statistical track record

Free account

Open-market buys: 10

Last buy: Feb 12, 2026

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of SUMME GREGORY L

Co-insiders of SUMME GREGORY L

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
GRAIL, Inc.Listing on record	Jul 16, 2026	Award	427	74.36 USD	$31.8K		SEC
GRAIL, Inc.Listing on record	Jun 22, 2026	Award	5,491	63.74 USD	$350K	Unusual size	SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	AwardD (derivative)	841	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	Exercise	1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	ExerciseD (derivative)	-1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	Other	-513	297.41 USD	$152.6K		SEC
Wheels Up Experience Inc.Listing on record	Jun 10, 2026	Award	24,305	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Avantor, Inc.Listing on record	May 11, 2026	Award	25,270	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAIL, Inc.Listing on record	Apr 17, 2026	Award	631	49.79 USD	$31.4K		SEC
Avantor, Inc.Listing on record	Feb 12, 2026	Buy	100,000	9.40 USD	$940K	conv 54Cluster	SEC
GRAIL, Inc.Listing on record	Jan 16, 2026	Award	329	97.44 USD	$32.1K		SEC
Avantor, Inc.Listing on record	Oct 31, 2025	Buy	100,000	11.25 USD	$1.1M	conv 53	SEC
GRAIL, Inc.Listing on record	Oct 16, 2025	Award	425	75.52 USD	$32.1K		SEC
Avantor, Inc.Listing on record	Aug 22, 2025	Buy	100,000	12.56 USD	$1.3M	conv 66	SEC
GRAIL, Inc.Listing on record	Jul 17, 2025	Award	825	38.53 USD	$31.8K		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2025	AwardD (derivative)	1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Wheels Up Experience Inc.Listing on record	Jun 11, 2025	Award	148,026	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	ExerciseD (derivative)	-822	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	Exercise	822	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	Other	-407	196.21 USD	$79.9K		SEC
GRAIL, Inc.Listing on record	May 30, 2025	Award	6,082	41.10 USD	$250K		SEC
Avantor, Inc.Listing on record	May 27, 2025	Buy	30,000	12.50 USD	$375K	conv 53Cluster	SEC
Avantor, Inc.Listing on record	May 22, 2025	Buy	20,000	12.65 USD	$253K	conv 53Cluster	SEC
Avantor, Inc.Listing on record	May 12, 2025	Award	17,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Avantor, Inc.Listing on record	May 9, 2025	Buy	25,000	12.00 USD	$300K	conv 63Cluster	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
GRAIL, Inc.Listing on record	Jul 16, 2026	Award	427	74.36 USD	$31.8K		SEC
GRAIL, Inc.Listing on record	Jun 22, 2026	Award	5,491	63.74 USD	$350K	Unusual size	SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	AwardD (derivative)	841	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	Exercise	1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	ExerciseD (derivative)	-1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2026	Other	-513	297.41 USD	$152.6K		SEC
Wheels Up Experience Inc.Listing on record	Jun 10, 2026	Award	24,305	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Avantor, Inc.Listing on record	May 11, 2026	Award	25,270	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAIL, Inc.Listing on record	Apr 17, 2026	Award	631	49.79 USD	$31.4K		SEC
Avantor, Inc.Listing on record	Feb 12, 2026	Buy	100,000	9.40 USD	$940K	conv 54Cluster	SEC
GRAIL, Inc.Listing on record	Jan 16, 2026	Award	329	97.44 USD	$32.1K		SEC
Avantor, Inc.Listing on record	Oct 31, 2025	Buy	100,000	11.25 USD	$1.1M	conv 53	SEC
GRAIL, Inc.Listing on record	Oct 16, 2025	Award	425	75.52 USD	$32.1K		SEC
Avantor, Inc.Listing on record	Aug 22, 2025	Buy	100,000	12.56 USD	$1.3M	conv 66	SEC
GRAIL, Inc.Listing on record	Jul 17, 2025	Award	825	38.53 USD	$31.8K		SEC
NXP Semiconductors N.V.Listing on record	Jun 12, 2025	AwardD (derivative)	1,035	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Wheels Up Experience Inc.Listing on record	Jun 11, 2025	Award	148,026	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	ExerciseD (derivative)	-822	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	Exercise	822	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NXP Semiconductors N.V.Listing on record	Jun 2, 2025	Other	-407	196.21 USD	$79.9K		SEC
GRAIL, Inc.Listing on record	May 30, 2025	Award	6,082	41.10 USD	$250K		SEC
Avantor, Inc.Listing on record	May 27, 2025	Buy	30,000	12.50 USD	$375K	conv 53Cluster	SEC
Avantor, Inc.Listing on record	May 22, 2025	Buy	20,000	12.65 USD	$253K	conv 53Cluster	SEC
Avantor, Inc.Listing on record	May 12, 2025	Award	17,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Avantor, Inc.Listing on record	May 9, 2025	Buy	25,000	12.00 USD	$300K	conv 63Cluster	SEC