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AVTR · Avantor, Inc.

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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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AVTR

Name: Avantor, Inc. (AVTR) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

Avantor, Inc.

MEDICAL DEVICES · LABORATORY ANALYTICAL INSTRUMENTS · CIK 0001722482

CLUSTER · 3 INSIDERS☆ WATCH

INSIDER NET · 180D

$1.3M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

288

13F, latest reported quarter

REVENUE GROWTH

-3.4%

XBRL, annual

NET MARGIN

-8.1%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net +$1.3M over 180 days

more than 93% of Medical Devices

CONGRESS

no member of Congress has reported trading it

FUNDS

288 funds added or opened last quarter

more than 83% of Medical Devices

REVENUE

-3.4% year over year

below 78% of Medical Devices

MARGIN

-8.1% net margin

more than 51% of Medical Devices

BUYBACKS

$75.1M repurchased, FY to 2025-12-31

more than 56% of Medical Devices

SHORT

7.8% of shares outstanding short · 3.4 days to cover · settled 2026-07-31

more than 81% of Medical Devices

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

3 insiders independently bought a net $1.3M — no planned sales are queued against it.

288 funds added or opened positions in the latest 13F quarter, of 460 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +12.6%

+12.6%12M

INSIDER BUY

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

3 insiders reported buying shares.

The record shows a net $1.3M bought by insiders over 180 days, 288 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

TMO PEN ROK BLFS MTD SIBN WRBY ISRG TXG DXCM EW TMDX

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Avantor, Inc. insiders bought a net $1.3M of stock across 64 Form 4 purchases and sales, with 3 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

LUCIER GREGORY T

Director

BUY

2026-05-08

10,000.0

$83.2K

Dingemans Simon

Director

BUY

2026-05-01

25,000.0

$203.5K

MEHRA SANJEEV K

Director

BUY

2026-03-10

125,000.0

$1.0M

LUCIER GREGORY T

Director

BUY

2026-02-19

50,000.0

$458.0K

SUMME GREGORY L

Director

BUY

2026-02-12

100,000.0

$940.0K

64 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 59 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

Dodge & Cox

120,020,974.0 sh

$1.2B

BlackRock, Inc.

70,281,231.0 sh

$695.8M

VANGUARD PORTFOLIO MANAGEMENT LLC

31,343,250.0 sh

$310.3M

VANGUARD CAPITAL MANAGEMENT LLC

30,802,835.0 sh

$304.9M

GREENHAVEN ASSOCIATES INC

24,637,310.0 sh

$243.9M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Clarkston Partners Fund

$18.4M POSITION · AS OF 2026-03-31

5.9%

Clarkston Founders Fund

$9.0M POSITION · AS OF 2026-03-31

5.5%

Clarkston Fund

$4.9M POSITION · AS OF 2026-03-31

5.0%

Olstein Strategic Opportunities Fund

$1.8M POSITION · AS OF 2026-03-31

4.6%

Cromwell Tran Focus Fund

$675.8K POSITION · AS OF 2026-03-31

3.1%

Longleaf Partners Fund

$24.2M POSITION · AS OF 2026-03-31

2.3%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2020

$11.3M

$34.0M

$4.6M

+55%

+13%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$6.6B	$6.8B	$7.0B	$7.5B
GROSS PROFIT	$2.1B	$2.3B	$2.4B	$2.6B
OPERATING INCOME	$-246.2M	$1.1B	$696.4M	$1.1B
NET INCOME	$-530.2M	$711.5M	$321.1M	$686.5M
EPS (DILUTED)	-0.78	1.04	0.47	1.01
OPERATING CASH FLOW	$623.8M	$840.8M	$870.0M	$843.6M
CASH	$365.4M	$261.9M	$262.9M	$372.9M
LONG-TERM DEBT	$3.9B	$3.2B	$5.3B	$5.9B
BUYBACKS	$75.1M	$0	$0	—

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE