// company-profile
Avantor, Inc.
AVTRExchangeNYSESectorLaboratory Analytical InstrumentsFilings156Insiders32
// api This Avantor, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $29K across 1 transaction.
// 90-day insight
Over the last 90 days, Avantor, Inc. insiders bought $287K (13 transactions) and sold $29K (1 transaction).
- Most active insider: Dingemans Simon with 2 transactions totaling $204K.
- Largest single purchase: $204K by Dingemans Simon on May 1, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Avantor, Inc. as of 2026-03-31
Total reported AUM
$4.89B
QoQ change
-28.8%
Reporting period
2026-03-31
#1
Dodge & Cox
CIK 200217
$938.0M
119.6M shares
#2
BlackRock, Inc.
CIK 2012383
$275.3M
35.1M shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$240.0M
30.6M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 21, 2026 | Walker Corey | AVTR | Tax Withholding | 3,010 | $9.58 | $29K |
| May 8, 2026 | LUCIER GREGORY T | AVTR | Purchase | 10,000 | $8.32 | $83K |
| May 7, 2026 | SEVERINO MICHAEL | AVTR | Award | 25,270 | $0.00 | $0K |
| May 7, 2026 | LUCIER GREGORY T | AVTR | Award | 25,270 | $0.00 | $0K |
| May 7, 2026 | MEHRA SANJEEV K | AVTR | Award | 25,270 | $0.00 | $0K |
45 more transactions hidden
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