Insiders · Profile

SUMME GREGORY L

Director at Avantor · Director at State Street · Director at NXP Semiconductors · and 2 more. Filing since 31 Aug 2007. CIK 0001143422

AVTR Avantor, Inc. Director · 7 trades STT State Street Corporation Director · 4 trades NXPI NXP Semiconductors Director · 2 trades ADP Automatic Data Processing Director · 1 trade RVTY Revvity Exe. Chairman of the Board · 13 trades

Company

Date

Role

Action

Shares

Amount

Of holding

AVTR Avantor, Inc.

12 Feb 2026

Director

Bought

100,000

$940.00K

33.3%

AVTR Avantor, Inc.

30 Oct 2025

Director

Bought

100,000

$1.13M

50.0%

AVTR Avantor, Inc.

21 Aug 2025

Director

Bought

100,000

$1.26M

100%

AVTR Avantor, Inc.

23 May 2025

Director

Bought

30,000

$375.00K

42.9%

AVTR Avantor, Inc.

22 May 2025

Director

Bought

20,000

$253.00K

40.0%

AVTR Avantor, Inc.

7 May 2025

Director

Bought

25,000

$300.00K

100%

AVTR Avantor, Inc.

28 Apr 2025

Director

Bought

25,000

$312.50K

opened

STT State Street Corporation

18 Feb 2025

Director

Sold at will

10,815

$1.08M

9.8%

STT State Street Corporation

18 Feb 2025

Director

Sold at will

3,000

$300.00K

100%

NXPI NXP Semiconductors

28 Feb 2024

Director

Sold at will

4,695

$1.15M

39.8%

NXPI NXP Semiconductors

28 Feb 2024

Director

Sold at will

3,000

$735.80K

100%

STT State Street Corporation

7 May 2019

Director

Bought

3,000

$193.50K

opened

ADP Automatic Data Processing

25 Nov 2013

Director

Sold, plan not stated

15,000

$1.20M

40.1%

STT State Street Corporation

19 Aug 2011

Director

Bought

10,000

$319.90K

25.3%

27 Feb 2009

Exe. Chairman of the Board

Sold, plan not stated

131,829

$1.72M

36.3%

8 Aug 2008

Executive Chairman

Sold, plan not stated

282,813

$8.34M

43.8%

6 Aug 2008

Executive Chairman

Sold, plan not stated

26,700

$787.65K

6.8%

31 Jul 2008

Executive Chairman

Sold, plan not stated

15,487

$456.87K

4.1%

29 Jul 2008

Executive Chairman

Sold, plan not stated

625,000

$17.87M

63.2%

1 May 2008

Executive Chairman

Sold, plan not stated

185,511

$5.01M

33.8%

30 Apr 2008

Executive Chairman

Sold, plan not stated

1,000

$27.00K

0.2%

29 Apr 2008

Executive Chairman

Sold, plan not stated

381,200

$10.04M

40.9%

28 Feb 2008

Exe. Chairman of the Board

Sold, plan not stated

126,983

$3.13M

16.9%

6 Feb 2008

Executive Chairman

Sold, plan not stated

400

$10.40K

0.1%

5 Sep 2007

Chairman & CEO

Sold, plan not stated

248,100

$6.80M

24.8%

4 Sep 2007

Chairman & CEO

Sold, plan not stated

300,000

$8.21M

23.0%

31 Aug 2007

Chairman & CEO

Sold, plan not stated

350,000

$9.57M

21.2%

27 decisions on file.