Gregory L Summe

Director

Gregory L Summe (Director) filed 2 Form 4 reports in the trailing twelve months (2 purchases, 0 sales), most often in AVTR. Across 2 priced purchase filings, the average 21-session return was -6.5% from execution and -4.8% from disclosure (delay-adjusted; derived). The largest single filing was $1.1M of AVTR (100,000 sh × $11.25, as filed), executed Oct 30 2025.

Add to watchlist

Return, ttmiAverage return per filing, trailing twelve months

-6.5%

avg across 2 priced filings

Delay-adjustediThe same average, entered at disclosure dates

-4.8%

same 2 filings, from disclosure

Filings, ttm

2 buys · 0 sells

Median delay

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$2.1M

shares × price, as filed

Last traded

Feb 12

Filed Feb 12

Median ADV $415.1M across their filed names

Impact on $10,000 · 12M

$8,933 (-10.7%)

S&P 500 $11,725 (+17.2%) · 27.9 pts behind

Gregory L Summe S&P 500

Compounded across filings from disclosure dates · past 12 months

Open performance→

Volume by month

Buys $4.6M Sells $1.4M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Not on file 2 filings

Sector per market data · by filing · past 12 months

Most traded names

AVTR AVTR AVTR · 7 buys · 0 sells 7 filings STT

State Street Corporation STT · 0 buys · 1 sell 1 filing

Recent filings

AVTRPURCHASE Avantor, Inc. View filing → $940K
100,000 sh × $9.40
Exec Feb 12
Filed Feb 12 · 5:24 PM ET AVTRPURCHASE Avantor, Inc. View filing → $1.1M
100,000 sh × $11.25
Exec Oct 30 2025
Filed Oct 31 2025 · 9:46 AM ET AVTRPURCHASE Avantor, Inc. View filing → $1.3M
100,000 sh × $12.56
Exec Aug 21 2025
Filed Aug 22 2025 · 4:15 PM ET AVTRPURCHASE Avantor, Inc. View filing → $375K
30,000 sh × $12.50
Exec May 23 2025
Filed May 27 2025 · 5:30 PM ET AVTRPURCHASE Avantor, Inc. View filing → $253K
20,000 sh × $12.65
Exec May 22 2025
Filed May 22 2025 · 5:30 PM ET AVTRPURCHASE Avantor, Inc. View filing → $300K
25,000 sh × $12.00
Exec May 7 2025
Filed May 9 2025 · 5:30 PM ET AVTRPURCHASE Avantor, Inc. View filing → $312K
25,000 sh × $12.50
Exec Apr 28 2025
Filed Apr 29 2025 · 5:30 PM ET STTSALE State Street Corporation View filing → $1.4M
13,815 sh across 2 lots
Exec Feb 18 2025
Filed Feb 19 2025 · 5:30 PM ET