Avantor, Inc.
AVTR- Exchange
- NYSE
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001722482
No open-market purchases or sales by Avantor, Inc. insiders were filed in the last 90 days; 461 institutions reported holding it in 13F filings for Q2 2026, worth $6.92B in total; superinvestors Greenhaven Associates and Southeastern Asset Management (Longleaf) hold it.
Key figures
- Market capClose on Nov 13, 2026
- $10.5B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +33 vs. previous quarter
- 461
- 13F valueReported value at the end of Q2 2026
- $6.92B
- Superinvestors holdingAt the end of Q2 2026
- 2
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $6.55B
- −3.4% year over year
- Net income, FY2025
- -$530.2M
- −174.5% year over year
- Free cash flow, FY2025
- $495.0M
- −28.5% year over year
- Revenue, Q3 FY2026
- $1.70B
- +4.6% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Net loss for FY2025: $530.2M (8.1% of revenue).
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 26.9M
- Shares sold short
- Change
- −7.74M
- −22.4% vs. previous
- Days to cover
- 2.00
- At average daily volume
Superinvestors holding AVTR, Q2 2026
Go to the superinvestors tab2 superinvestors report holding Avantor, Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Greenhaven Associates
Edgar Wachenheim III
2.8%
Avantor, Inc.'s share of the portfolio
- Shares
- 24,637,310
- Value
- $243.9M
Southeastern Asset Management (Longleaf)
Mason Hawkins
2.4%
Avantor, Inc.'s share of the portfolio
- Shares
- 4,725,478
- Value
- $46.8M
Latest insider trades
See all insider tradesOpen-market purchases and sales by Avantor, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 11, 2026 (view filing) | May 8 | 3 days | Lucier Gregory TDirector | PPurchase | +10.0K | $8.32 | +$83.2K | +20.0%60.0K after | |
| May 5, 2026 (view filing) | May 1 | 4 days | Dingemans SimonDirector | PPurchase | +25.0K | $8.14 | +$203.5K | New position25.0K after | |
| Mar 11, 2026 (view filing) | Mar 10 | 1 day | Mehra Sanjeev KDirector | PPurchase | +125.0K | $8.01 | +$1.00M | +35.7%475.0K after | |
| Feb 23, 2026 (view filing) | Feb 19 | 4 days | Lucier Gregory TDirector | PPurchase | +50.0K | $9.16 | +$458.0K | New position50.0K after | |
| Feb 12, 2026 (view filing) | Feb 12 | Same day | Summe Gregory LDirector | PPurchase | +100.0K | $9.40 | +$940.0K | +33.3%400.0K after | |
| Dec 9, 2025 (view filing) | Dec 5 | 4 days | Mehra Sanjeev KDirector | PPurchase | +350.0K | $11.09 | +$3.88M | New position350.0K after | |
| Nov 17, 2025 (view filing) | Nov 17 | Same day | Ligner EmmanuelPresident and CEO | PPurchase | +87.5K | $11.35 | +$993.1K | +44.7%283.4K after | |
| Oct 31, 2025 (view filing) | Oct 30 | 1 day | Summe Gregory LDirector | PPurchase | +100.0K | $11.25 | +$1.13M | +50.0%300.0K after | |
| Aug 22, 2025 (view filing) | Aug 21 | 1 day | Summe Gregory LDirector | PPurchase | +100.0K | $12.56 | +$1.26M | +100.0%200.0K after | |
| Aug 6, 2025 (view filing) | Aug 5 | 1 day | Eck Steven WSVP & Chief Accounting Officer | SSale | −3.48K | $11.39 | −$39.6K | −5.9%55.1K after | 10b5-1 |
Top 10 13F holders, Q2 2026
See all 461 holdersThe largest institutional positions in Avantor, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dodge & Cox | 120,020,974 | $1.19B | 0.62% | +372,645+0.3% | Added |
| BlackRock, Inc. | 70,281,231 | $695.8M | 0.01% | +4,577,677+7.0% | Added |
| Vanguard Portfolio Management LLC | 31,343,250 | $310.3M | 0.01% | +67,403+0.2% | Added |
| Vanguard Capital Management LLC | 30,802,835 | $304.9M | 0.01% | +196,723+0.6% | Added |
| Greenhaven Associates IncSuperinvestorGreenhaven Associates | 24,637,310 | $243.9M | 2.82% | +2,043,472+9.0% | Added |
| State Street Corp | 21,572,974 | $213.6M | 0.01% | +851,895+4.1% | Added |
| Dimensional Fund Advisors LP | 20,412,181 | $202.1M | 0.04% | +3,517,532+20.8% | Added |
| Engine Capital Management, LP | 19,860,830 | $196.6M | 19.13% | +80,000+0.4% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 19,735,968 | $195.4M | 0.59% | −2,622,431−11.7% | Reduced |
| New Mountain Capital, L.L.C. | 14,000,000 | $138.6M | 100.00% | 00.0% | Unchanged |
Holders of 5% or more of AVTR
See all 3 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Avantor, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Dodge & Cox | 13G/A | 17.20%117.4M shares | +2.60 ppfrom 14.60% | Feb 13, 20244 filings | Aug 13, 2025 | SEC |
| BlackRock, Inc. | 13G/A | 8.70%59.0M shares | – | Oct 17, 20251 filing | Oct 17, 2025 | SEC |
| Vanguard Capital Management LLC | 13G | 5.29%35.8M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Politician trades
All politician trades in AVTR5 members of Congress reported 10 trades in Avantor, Inc. since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Sep 12, 2025 |  Gilbert Ray Cisneros, Jr. House · CA | Sell (partial) | $1K-$15K |
| Sep 12, 2025 | Gilbert Ray Cisneros, Jr. House · CA | Sell | $1K-$15K |
| Aug 14, 2025 | Gilbert Ray Cisneros, Jr. House · CA | Sell (partial) | $1K-$15K |
| Aug 13, 2025 |  Lisa C. McClain House · MI | Buy | $1K-$15K |
| Aug 13, 2025 | Lisa C. McClain House · MI | Sell (partial) | $1K-$15K |
House · CA · Sep 12, 2025
Sell (partial)$1K-$15K
House · CA · Sep 12, 2025
Sell$1K-$15K
House · CA · Aug 14, 2025
Sell (partial)$1K-$15K
House · MI · Aug 13, 2025
Buy$1K-$15K
House · MI · Aug 13, 2025
Sell (partial)$1K-$15K