Stocks › AVTR
Avantor, Inc.
AVTR·NYSE·
United States·USD
United States·USD$15.43
-0.38 (-2.40%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
AVTR
Avantor, Inc. · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
AVTRS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of AVTR by members of U.S. Congress · 18 on record
Whale Activity
Position changes in AVTR reported for 2026-06-30 by 8 tracked institutional filers
- Increased4
- New0
- Held0
- Decreased3
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 70.3M | $695.8M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31.3M | $310.3M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 30.8M | $304.9M | increased |
| D. E. Shaw & Co., Inc. | 9.6M | $94.8M | decreased |
| LOEWS CORP | 2.2M | $21.8M | — |
| MILLENNIUM MANAGEMENT LLC | 753.6K | $7.5M | decreased |
| CITADEL ADVISORS LLC | 399.1K | $4.0M | decreased |
| Bridgewater Associates, LP | 301.2K | $3.0M | increased |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by AVTR insiders, by quarter · Form 4
Recent Insider Transactions
923 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Walker CoreyPresident, VWR Dist. & Servs. | Tax withholding | −3,010 | $9.58 | $29K | Jun 21, 2026 | Form 4 ↗ |
| LUCIER GREGORY TDirector | Purchase | +10.0K | $8.32 | $83K | May 8, 2026 | Form 4 ↗ |
| Murthy MalaDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| LUCIER GREGORY TDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| Dingemans SimonDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| Makin LouiseDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| Massaro Joseph RDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| MEHRA SANJEEV KDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| SEVERINO MICHAELDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| SUMME GREGORY LDirector | Grant / award | +25.3K | $0.00 | $0 | May 7, 2026 | Form 4 ↗ |
| Dingemans SimonDirector | Purchase | +25.0K | $8.14 | $204K | May 1, 2026 | Form 4 ↗ |
| Brellier LudovicEVP, Bioscience & Medtech | Grant / award | +146.6K | $0.00 | $0 | May 1, 2026 | Form 4 ↗ |
| Eck Steven WSVP & Chief Accounting Officer | Grant / award | +31.6K | $0.00 | $0 | Apr 3, 2026 | Form 4 ↗ |
| MEHRA SANJEEV KDirector | Purchase | +125.0K | $8.01 | $1.0M | Mar 10, 2026 | Form 4 ↗ |
| Hankamer BrittanyEVP, Chief HR Officer | Tax withholding | −359 | $9.11 | $3K | Feb 24, 2026 | Form 4 ↗ |
| Eck Steven WSVP & Chief Accounting Officer | Tax withholding | −452 | $9.11 | $4K | Feb 24, 2026 | Form 4 ↗ |
| Sokenu ClaudiusEVP, Chief Legal & Compliance | Tax withholding | −2,376 | $8.89 | $21K | Feb 23, 2026 | Form 4 ↗ |
| Hankamer BrittanyEVP, Chief HR Officer | Tax withholding | −1,324 | $8.89 | $12K | Feb 23, 2026 | Form 4 ↗ |
| Jones R. BrentEVP, Chief Financial Officer | Tax withholding | −2,805 | $8.89 | $25K | Feb 23, 2026 | Form 4 ↗ |
| Gourdier BenoitEVP, Bioscience & Medtech | Tax withholding | −3,029 | $8.89 | $27K | Feb 23, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding AVTR · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Dodge & Cox Stock Fund Dodge & Cox Funds | 74.9M | $741.2M | 0.63% | Jun 30, 2026 |
| iShares Core S&P Mid-Cap ETF iShares Trust | 23.4M | $231.4M | 0.19% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 21.7M | $214.6M | 0.01% | Jun 30, 2026 |
| VANGUARD HEALTH CARE FUND VANGUARD SPECIALIZED FUNDS | 20.5M | $165.9M | 0.45% | Apr 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 15.7M | $155.1M | 0.08% | Jun 30, 2026 |
| Invesco Small Cap Value Fund AIM Sector Funds (Invesco Sector Funds) | 9.6M | $132.5M | 1.19% | Jul 31, 2026 |
| Bridge Builder Large Cap Value Fund Bridge Builder Trust | 10.9M | $108.0M | 0.37% | Jun 30, 2026 |
| VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS | 9.9M | $98.2M | 0.14% | Jun 30, 2026 |
| U.S. SMALL CAP VALUE PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 6.9M | $95.7M | 0.49% | Jul 31, 2026 |
| Touchstone Funds Group Trust-Touchstone Mid Cap Fund Touchstone Funds Group Trust | 9.5M | $94.2M | 2.09% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list AVTR's shares (CUSIP 05352A100), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Vanguard Capital ManagementSCHEDULE 13G · passive (13G) · 35.8M shares5.3%
Apr 29, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming Avantor, Inc. as client
No lobbying filings found naming Avantor, Inc. as the client.
Government Contracts
Federal awards to Avantor, Inc. · USAspending
No federal contract awards found for Avantor, Inc..
U.S. Patents
Recent USPTO applications naming Avantor, Inc.
No USPTO patent applications found for Avantor, Inc..
Annual Financials
From AVTR's 10-K filings · XBRL
No annual XBRL figures on record for AVTR. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in AVTR's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureSep 21, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureSep 21, 2026
EDGAR ↗ - 8-K/A · Items 5.02, 9.01Officer / director changeAug 27, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsJul 29, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 9.01Material agreement · Direct financial obligationJul 17, 2026
EDGAR ↗ - 8-K · Items 5.07, 9.01Shareholder voteMay 12, 2026
EDGAR ↗
About Avantor, Inc.
From SEC EDGAR company records
Industry (SIC 3826)Laboratory Analytical Instruments
SectorTechnology
HeadquartersRADNOR, PA
SEC CIK0001722482 ↗
Former namesVail Holdco Corp