Avantor, Inc.
US ˙ NYSE ˙ US05352A1007

SecurityAVTR / Avantor, Inc.
InsiderGregory L Summe
This page shows the track record and history of SUMME GREGORY L insider trades in Avantor, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Gregory L Summe in AVTR / Avantor, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2026-02-12 100,000 9.4000 100,000 9.4000 940,000 112 9.5200 12,000 1.28
2025-10-30 100,000 11.2500 100,000 11.2500 1,125,000
2025-08-21 100,000 12.5600 100,000 12.5600 1,256,000
2025-05-23 30,000 12.5000 30,000 12.5000 375,000
2025-05-22 20,000 12.6500 20,000 12.6500 253,000
2025-05-07 25,000 12.0000 25,000 12.0000 300,000
2025-04-28 25,000 12.5000 25,000 12.5000 312,500

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AVTR / Avantor, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Gregory L Summe in AVTR / Avantor, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

AVTR / Avantor, Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-05-11 2026-05-07 4 SUMME GREGORY L AVTR Common Stock A - Award D 25,270 83,381
2026-02-12 2026-02-12 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 9.4000 100,000 940 400,000
2025-10-31 2025-10-30 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 11.2500 100,000 1,125 300,000
2025-08-22 2025-08-21 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 12.5600 100,000 1,256 200,000
2025-05-27 2025-05-23 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 12.5000 30,000 375 100,000
2025-05-22 2025-05-22 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 12.6500 20,000 253 70,000
2025-05-12 2025-05-08 4 SUMME GREGORY L AVTR Common Stock A - Award D 17,100 58,111
2025-05-09 2025-05-07 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 12.0000 25,000 300 50,000
2025-04-29 2025-04-28 4 SUMME GREGORY L By a Trust AVTR Common Stock P - Purchase I 12.5000 25,000 312 25,000
2024-05-13 2024-05-09 4 SUMME GREGORY L AVTR Common Stock A - Award D 8,477 41,011
2023-05-15 2023-05-11 4 SUMME GREGORY L AVTR Common Stock A - Award D 9,808 32,534
2022-05-16 2022-05-12 4 SUMME GREGORY L AVTR Common Stock A - Award D 6,693 22,726
2022-04-05 2022-04-01 4 SUMME GREGORY L AVTR Common Stock A - Award D 1,215 16,033
2021-03-01 2021-02-25 4 SUMME GREGORY L AVTR Common Stock A - Award D 7,236 14,818
2020-05-12 2020-05-08 4 SUMME GREGORY L AVTR Common Stock A - Award D 7,582 7,582
P
Compra de mercado aberto ou privada de ativo não-derivativo ou derivativo
S
Venda de mercado aberto ou privada de ativo não-derivativo ou derivativo
A
Concessão, premiação, ou outra aquisição de ativos da empresa (como uma opção)
C
Conversão de derivativo
D
Venda ou transferência de ativos de volta para a empresa
F
Pagamento do preço de exercício ou responsabilidade fiscal utilizando parte dos ativos recebidos da empresa
G
Doação de ativos pelo ou para o insider
K
Swaps de capital e transações de hedge similares
M
Exercício ou conversão de ativo derivativo recebido da empresa (como uma opção)
V
Uma transação voluntariamente reportada no Formulário 4
J
Outro (acompanhado de uma nota explicativa descrevendo a transação)