Gregory L Summe

Director

Gregory L Summe (Director) filed 1 Form 4 report in the trailing twelve months (1 purchase, 0 sales), most often in AVTR. Across 1 priced purchase filing, the average 21-session return was -16.5% from execution and -16.5% from disclosure (delay-adjusted; derived). The largest single filing was $940K of AVTR (100,000 sh × $9.40, as filed), executed Feb 12. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months

-16.5%

avg across 1 priced filings

Delay-adjustediThe same average, entered at disclosure dates

-16.5%

same 1 filings, from disclosure

Filings, ttm

1 buys · 0 sells

Median delay

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$940K

shares × price, as filed

Last traded

Feb 12

Filed Feb 12

Median ADV $415.1M across their filed names

Impact on $10,000 · 12M

$8,529 (-14.7%)

S&P 500 $10,907 (+9.1%) · 23.8 pts behind

Gregory L Summe S&P 500

Derived: 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

Most traded names

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