A board member of Avantor paid $1M out of pocket for Avantor shares. 2 other people at Avantor bought some too, in the same month. The Avantor shares held grew by 36%.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Mar 10, 2026
Reporting period: Not applicable
Filed with the SEC: Mar 11, 2026

DirectorIndirect holding$1M+Holdings +36%3 insiders bought in 30d

Context

Classification

open market purchase

Code P — open-market or private purchase

Absolute commitment

~$1,001,250

Shares × reported transaction price

Size band

Ask Claude or ChatGPT about these filings. Connect OQRO in a minute, then ask things like “which insiders bought this week?”

$1M+

Ownership change

+35.7%

Purchase shares ÷ estimated pre-transaction holdings, from the filing

Rarity

First purchase in 3 months

Confirmed open-market purchases by the same insider in the available history

Largest by this insider

Compared with 1 earlier confirmed purchase

Cluster activity

3 distinct insiders in 30 days

Distinct insiders at the same issuer with confirmed open-market purchases

Timing vs results

27 days after results of Feb 11, 2026, 50 days before results of Apr 29, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	−3.7%	−0.9%	−2.7%
30 days	+3.5%	+3.0%	+0.5%
90 days	+22.1%	+8.9%	+13.2%
180 days	+93.0%	+15.0%	+78.0%

Past results only. Not a forecast.

Source receipt

Record ID: 0001628280-26-016904
Filed / recorded: Mar 11, 2026, 9:10 PM UTC
Added to OQRO: Oct 6, 2026, 4:40 PM UTC
Parser: form4-xml-v2
Data quality: Verified: identifiers matched exactly
Issuer: Avantor, Inc.
Issuer CIK: 1722482
Ticker: AVTR
Reporting person: Sanjeev K Mehra
Relationship: Director
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Mar 10, 2026
Transaction code: P
Shares / units: 125,000
Price per share: $8.01
Acquired / disposed: Acquired (A)
Shares owned after: 475,000
Ownership form: Indirect — By limited liability company
Amendment: No

Footnotes from the filing

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $7.98 to $8.05, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each price within the range set forth above.
The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.