NYSE · CIK 0001722482
AVTR Avantor, Inc.
Insider trading from SEC Form 4. Last filing 19 d ago. Close $15.67 on Oct 9, 2026, +111% from the 52-week low and -1% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
23
with a Form 4 at this company
Price and insider trades, last year
AVTROct 9, 2026 · close 15.67
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Avantor, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 66Notable | Sanjeev K Mehra director buy | $3.9M 350,000 shares | - | +0% from low-52% from high | |
| 74Notable | Emmanuel Ligner President and CEO buy | $993k 87,500 shares | +45% | 0% from low-52% from high | |
| 73Notable | Gregory L Summe director buy | $1.1M 100,000 shares | +50% | 0% from low-52% from high | |
| 63Notable | Gregory L Summe director buy | $1.3M 100,000 shares | +100% | +12% from low-55% from high | |
| 1Weak | Steven W Eck SVP & Chief Accounting Officer sell | $40k 3,476 shares | -6% | +3% from low-58% from high | |
| 60Notable | Gregory L Summe director buy | $375k 30,000 shares | +43% | +6% from low-54% from high | |
| 57Moderate | Gregory L Summe director buy | $253k 20,000 shares | +40% | +8% from low-54% from high | |
| 77Notable | Gregory L Summe director buy | $300k 25,000 shares | +100% | 0% from low-57% from high | |
| 58Moderate | Jonathan M Peacock director buy | $104k 8,091 shares | +4% | 0% from low-55% from high | |
| 59Moderate | Lan Kang director buy | $63k 5,000 shares | +17% | 0% from low-55% from high | |
| 70Notable | Gregory L Summe director buy | $313k 25,000 shares | - | 0% from low-55% from high | |
| 64Notable | Joseph R Massaro director buy | $100k 8,100 shares | +30% | +2% from low-54% from high | |
| 18Weak | Steven W Eck SVP & Chief Accounting Officer sell | $104k 5,940 shares | -13% | - | |
| 12Weak | James Bramwell EVP Sales, Customer Excellence sell | $79k 4,532 shares | -5% | - |
Congressional trades
5 trades in AVTR disclosed by members of Congress under the STOCK Act. All congressional trades.
- Gilbert Ray Cisneros, Jr.House · D-CA · last Sep 12, 20250 bought
3 sold - Lisa C. McClainHouse · R-MI · last Aug 13, 20251 bought
1 sold
| Member | Trade | Asset | Reported range | Trade / filing date | Source |
|---|---|---|---|---|---|
Gilbert Ray Cisneros, Jr. House · D-CA | Partial sale | AVTR Avantor, Inc. Common Stock | $1,001 to $15k | Aug 12, 2025 / Sep 12, 2025 31 days after the trade | Clerk |
Gilbert Ray Cisneros, Jr. House · D-CA | Sale | AVTR Avantor, Inc. Common Stock | $1,001 to $15k | Aug 13, 2025 / Sep 12, 2025 30 days after the trade | Clerk |
Gilbert Ray Cisneros, Jr. House · D-CA | Partial sale | AVTR Avantor, Inc. Common Stock | $1,001 to $15k | Jul 23, 2025 / Aug 14, 2025 22 days after the trade | Clerk |
Lisa C. McClain House · R-MI | Purchase | AVTR Avantor, Inc. Common Stock | $1,001 to $15k | Jun 11, 2025 / Aug 13, 2025 63 days after the trade | Clerk |
Lisa C. McClain House · R-MI | Partial sale | AVTR Avantor, Inc. Common Stock | $1,001 to $15k | Jun 17, 2025 / Aug 13, 2025 57 days after the trade | Clerk |
Transactions
The last 81 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | Todd W Garner EVP and CFO | AGrant or award Common Stock | +49,688 | $0.00 | $0 | 49,688 | 19 d ago |
| Sep 21, 2026 | Todd W Garner EVP and CFO | AGrant or award Stock Options (Right to Buy)derivative | +138,632 | $0.00 | $0 | 138,632 | 19 d ago |
| Dec 5, 2025 | Sanjeev K Mehra director | AGrant or award Common Stock | +8,106 | $0.00 | $0 | 8,106 | Dec 9, 2025 |
| Dec 5, 2025 | Sanjeev K Mehra director | POpen-market purchase Common Stockindirect: By limited liability company | +350,000 | $11.09 | $3.9M | 350,000 | Dec 9, 2025 |
| Nov 17, 2025 | Emmanuel Ligner President and CEO | POpen-market purchase Common Stock | +87,500 | $11.35 | $993k | 283,424 | Nov 17, 2025 |
| Nov 10, 2025 | Mary Blenn EVP, Chief Operating Officer | AGrant or award Common Stock | +17,391 | $0.00 | $0 | 17,391 | Nov 12, 2025 |
| Nov 10, 2025 | Mary Blenn EVP, Chief Operating Officer | AGrant or award Stock Options (Right to Buy)derivative | +47,058 | $0.00 | $0 | 47,058 | Nov 12, 2025 |
| Oct 30, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +100,000 | $11.25 | $1.1M | 300,000 | Oct 31, 2025 |
| Oct 3, 2025 | Gregory T Lucier director | AGrant or award Common Stock | +8,736 | $0.00 | $0 | 8,736 | Oct 7, 2025 |
| Oct 2, 2025 | Benoit Gourdier EVP, Bioscience Production | FTax withholding Common Stock | -1,264 | $13.77 | $17k | 235,684 | Oct 3, 2025 |
| Aug 21, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +100,000 | $12.56 | $1.3M | 200,000 | Aug 22, 2025 |
| Aug 18, 2025 | Emmanuel Ligner President and CEO | AGrant or award Common Stock | +195,924 | $0.00 | $0 | 195,924 | Aug 21, 2025 |
| Aug 18, 2025 | Emmanuel Ligner President and CEO | AGrant or award Stock Options (Right to Buy)derivative | +573,394 | $0.00 | $0 | 573,394 | Aug 21, 2025 |
| Aug 14, 2025 | Brittany Hankamer EVP, Chief HR Officer | FTax withholding Common Stock | -181 | $12.98 | $2,349 | 171,563 | Aug 15, 2025 |
| Aug 8, 2025 | Christophe Couturier EVP, AMEA | AGrant or award Common Stock | +65,217 | $0.00 | $0 | 211,271 | Aug 12, 2025 |
| Aug 5, 2025 | Steven W Eck SVP & Chief Accounting Officer | SOpen-market sale Common Stock10b5-1 | -3,476 | $11.39 | $40k | 55,068 | Aug 6, 2025 |
| Jul 31, 2025 | Steven W Eck SVP & Chief Accounting Officer | FTax withholding Common Stock | -1,385 | $13.44 | $19k | 58,544 | Aug 4, 2025 |
| Jul 24, 2025 | Claudius Sokenu EVP, Chief Legal & Compliance | FTax withholding Common Stock | -3,123 | $14.01 | $44k | 177,106 | Jul 25, 2025 |
| Jun 21, 2025 | Corey Walker President Laboratory Solutions | FTax withholding Common Stock | -2,730 | $13.57 | $37k | 231,271 | Jun 24, 2025 |
| May 23, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +30,000 | $12.50 | $375k | 100,000 | May 27, 2025 |
| May 22, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +20,000 | $12.65 | $253k | 70,000 | May 22, 2025 |
| May 21, 2025 | Michael Stubblefield President & CEO | GGift Common Stock | -76,000 | $0.00 | $0 | 1,219,013 | May 21, 2025 |
| May 21, 2025 | Michael Stubblefield President & CEO | GGift Common Stockindirect: See Footnote | +76,000 | $0.00 | $0 | 545,500 | May 21, 2025 |
| May 9, 2025 | Benoit Gourdier EVP, Bioscience Production | AGrant or award Common Stock | +162,866 | $0.00 | $0 | 236,948 | May 12, 2025 |
| May 8, 2025 | John Carethers director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 45,858 | May 12, 2025 |
| May 8, 2025 | Gregory L Summe director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 58,111 | May 12, 2025 |
| May 8, 2025 | Joseph R Massaro director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 52,138 | May 12, 2025 |
| May 8, 2025 | Jonathan M Peacock director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 219,815 | May 12, 2025 |
| May 8, 2025 | Lan Kang director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 52,315 | May 12, 2025 |
| May 8, 2025 | Mala Murthy director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 44,209 | May 12, 2025 |
| May 8, 2025 | Louise Makin director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 21,870 | May 12, 2025 |
| May 8, 2025 | Michael Severino director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 60,551 | May 12, 2025 |
| May 8, 2025 | Juan Andres director | AGrant or award Common Stock | +17,100 | $0.00 | $0 | 65,480 | May 12, 2025 |
| May 9, 2025 | Corey Walker President Laboratory Solutions | AGrant or award Common Stock | +162,866 | $0.00 | $0 | 234,001 | May 12, 2025 |
| May 9, 2025 | Steven W Eck SVP & Chief Accounting Officer | AGrant or award Common Stock | +20,358 | $0.00 | $0 | 59,929 | May 12, 2025 |
| May 9, 2025 | Claudius Sokenu EVP, Chief Legal & Compliance | AGrant or award Common Stock | +122,149 | $0.00 | $0 | 180,229 | May 12, 2025 |
| May 9, 2025 | Brittany Hankamer EVP, Chief HR Officer | AGrant or award Common Stock | +122,149 | $0.00 | $0 | 171,744 | May 12, 2025 |
| May 9, 2025 | Christophe Couturier EVP, AMEA | AGrant or award Common Stock | +61,074 | $0.00 | $0 | 144,914 | May 12, 2025 |
| May 9, 2025 | R. Brent Jones EVP, Chief Financial Officer | AGrant or award Common Stock | +162,866 | $0.00 | $0 | 269,676 | May 12, 2025 |
| May 7, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +25,000 | $12.00 | $300k | 50,000 | May 9, 2025 |
| Apr 29, 2025 | Joseph R Massaro director | POpen-market purchase Common Stock | +8,100 | $12.30 | $100k | 35,038 | Apr 29, 2025 |
| Apr 28, 2025 | Lan Kang director | POpen-market purchase Common Stock | +5,000 | $12.57 | $63k | 35,215 | Apr 29, 2025 |
| Apr 28, 2025 | Jonathan M Peacock director | POpen-market purchase Common Stock | +8,091 | $12.81 | $104k | 202,715 | Apr 29, 2025 |
| Apr 28, 2025 | Gregory L Summe director | POpen-market purchase Common Stockindirect: By a Trust | +25,000 | $12.50 | $313k | 25,000 | Apr 29, 2025 |
| Apr 5, 2025 | Christophe Couturier EVP, AMEA | FTax withholding Common Stock | -569 | $15.13 | $8,609 | 83,840 | Apr 8, 2025 |
| Feb 26, 2025 | Steven W Eck SVP & Chief Accounting Officer | SOpen-market sale Common Stock10b5-1 | -4,907 | $17.53 | $86k | 40,604 | Feb 28, 2025 |
| Feb 26, 2025 | James Bramwell EVP Sales, Customer Excellence | SOpen-market sale Common Stock10b5-1 | -3,758 | $17.53 | $66k | 87,379 | Feb 28, 2025 |
| Feb 27, 2025 | Steven W Eck SVP & Chief Accounting Officer | SOpen-market sale Common Stock10b5-1 | -1,033 | $17.00 | $18k | 39,571 | Feb 28, 2025 |
| Feb 27, 2025 | James Bramwell EVP Sales, Customer Excellence | SOpen-market sale Common Stock10b5-1 | -774 | $17.00 | $13k | 86,605 | Feb 28, 2025 |
| Feb 24, 2025 | Brittany Hankamer EVP, Chief HR Officer | FTax withholding Common Stock | -437 | $17.47 | $7,634 | 49,964 | Feb 26, 2025 |
| Feb 24, 2025 | Christophe Couturier EVP, AMEA | FTax withholding Common Stock | -750 | $17.47 | $13k | 84,965 | Feb 26, 2025 |
| Feb 24, 2025 | Michael Stubblefield President & CEO | FTax withholding Common Stock | -6,800 | $17.47 | $119k | 1,452,991 | Feb 26, 2025 |
| Feb 24, 2025 | Steven W Eck SVP & Chief Accounting Officer | FTax withholding Common Stock | -439 | $17.47 | $7,669 | 46,016 | Feb 26, 2025 |
| Feb 24, 2025 | James Bramwell EVP Sales, Customer Excellence | FTax withholding Common Stock | -2,181 | $17.47 | $38k | 91,720 | Feb 26, 2025 |
| Feb 25, 2025 | Christophe Couturier EVP, AMEA | FTax withholding Common Stock | -556 | $17.56 | $9,763 | 84,409 | Feb 26, 2025 |
| Feb 25, 2025 | Michael Stubblefield President & CEO | FTax withholding Common Stock | -4,969 | $17.56 | $87k | 1,448,022 | Feb 26, 2025 |
| Feb 25, 2025 | Steven W Eck SVP & Chief Accounting Officer | FTax withholding Common Stock | -505 | $17.56 | $8,868 | 45,511 | Feb 26, 2025 |
| Feb 25, 2025 | James Bramwell EVP Sales, Customer Excellence | FTax withholding Common Stock | -583 | $17.56 | $10k | 91,137 | Feb 26, 2025 |
| Feb 25, 2025 | Brittany Hankamer EVP, Chief HR Officer | FTax withholding Common Stock | -369 | $17.56 | $6,480 | 49,595 | Feb 26, 2025 |
| Feb 20, 2025 | Benoit Gourdier EVP, Bioscience Production | AGrant or award Common Stock | +35,734 | $0.00 | $0 | 76,924 | Feb 24, 2025 |
| Feb 20, 2025 | Steven W Eck SVP & Chief Accounting Officer | AGrant or award Common Stock | +18,867 | $0.00 | $0 | 48,411 | Feb 24, 2025 |
| Feb 20, 2025 | Brittany Hankamer EVP, Chief HR Officer | AGrant or award Common Stock | +17,152 | $0.00 | $0 | 51,938 | Feb 24, 2025 |
| Feb 20, 2025 | Claudius Sokenu EVP, Chief Legal & Compliance | AGrant or award Common Stock | +21,440 | $0.00 | $0 | 60,398 | Feb 24, 2025 |
| Feb 20, 2025 | R. Brent Jones EVP, Chief Financial Officer | AGrant or award Common Stock | +42,881 | $0.00 | $0 | 69,646 | Feb 24, 2025 |
| Feb 20, 2025 | Michael Stubblefield President & CEO | AGrant or award Common Stock | +157,232 | $0.00 | $0 | 1,474,465 | Feb 24, 2025 |
| Feb 20, 2025 | Christophe Couturier EVP, AMEA | AGrant or award Common Stock | +12,864 | $0.00 | $0 | 87,221 | Feb 24, 2025 |
| Feb 23, 2025 | James Bramwell EVP Sales, Customer Excellence | FTax withholding Common Stock | -3,443 | $17.30 | $60k | 93,901 | Feb 24, 2025 |
| Feb 23, 2025 | Benoit Gourdier EVP, Bioscience Production | FTax withholding Common Stock | -2,842 | $17.30 | $49k | 74,082 | Feb 24, 2025 |
| Feb 23, 2025 | Steven W Eck SVP & Chief Accounting Officer | FTax withholding Common Stock | -1,956 | $17.30 | $34k | 46,455 | Feb 24, 2025 |
| Feb 23, 2025 | Brittany Hankamer EVP, Chief HR Officer | FTax withholding Common Stock | -1,537 | $17.30 | $27k | 50,401 | Feb 24, 2025 |
| Feb 20, 2025 | R. Brent Jones EVP, Chief Financial Officer | AGrant or award Common Stock | +37,164 | $0.00 | $0 | 106,810 | Feb 24, 2025 |
| Feb 23, 2025 | Claudius Sokenu EVP, Chief Legal & Compliance | FTax withholding Common Stock | -2,318 | $17.30 | $40k | 58,080 | Feb 24, 2025 |
| Feb 23, 2025 | Christophe Couturier EVP, AMEA | FTax withholding Common Stock | -1,506 | $17.30 | $26k | 85,715 | Feb 24, 2025 |
| Feb 20, 2025 | Christophe Couturier EVP, AMEA | AGrant or award Stock Options (Right to Buy)derivative | +31,163 | $0.00 | $0 | 31,163 | Feb 24, 2025 |
| Feb 20, 2025 | Benoit Gourdier EVP, Bioscience Production | AGrant or award Stock Options (Right to Buy)derivative | +86,565 | $0.00 | $0 | 86,565 | Feb 24, 2025 |
| Feb 20, 2025 | R. Brent Jones EVP, Chief Financial Officer | AGrant or award Stock Options (Right to Buy)derivative | +103,878 | $0.00 | $0 | 103,878 | Feb 24, 2025 |
| Feb 20, 2025 | Claudius Sokenu EVP, Chief Legal & Compliance | AGrant or award Stock Options (Right to Buy)derivative | +51,939 | $0.00 | $0 | 51,939 | Feb 24, 2025 |
| Feb 20, 2025 | Brittany Hankamer EVP, Chief HR Officer | AGrant or award Stock Options (Right to Buy)derivative | +41,551 | $0.00 | $0 | 41,551 | Feb 24, 2025 |
| Feb 23, 2025 | Michael Stubblefield President & CEO | FTax withholding Common Stock | -14,674 | $17.30 | $254k | 1,459,791 | Feb 24, 2025 |
| Feb 20, 2025 | Michael Stubblefield President & CEO | AGrant or award Stock Options (Right to Buy)derivative | +380,886 | $0.00 | $0 | 380,886 | Feb 24, 2025 |
| Nov 4, 2024 | Louise Makin director | AGrant or award Common Stock | +4,770 | $0.00 | $0 | 4,770 | Nov 6, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Juan Andresdirector
- Mary BlennEVP, Chief Operating Officer
- James BramwellEVP Sales, Customer Excellence
- John Carethersdirector
- Christophe CouturierEVP, AMEA
- Steven W EckSVP & Chief Accounting Officer
- Todd W GarnerEVP and CFO
- Benoit GourdierEVP, Bioscience Production
- Brittany HankamerEVP, Chief HR Officer
- R. Brent JonesEVP, Chief Financial Officer
- Lan Kangdirector
- Gregory T Lucierdirector
- Emmanuel LignerPresident and CEO
- Sanjeev K Mehradirector
- Louise Makindirector
- Joseph R Massarochair, officer, director
- Mala Murthycfo, officer, director
- Jonathan M Peacockdirector
- Michael Severinodirector
- Gregory L Summedirector
- Claudius SokenuEVP, Chief Legal & Compliance
- Michael StubblefieldPresident & CEO
- Corey WalkerPresident Laboratory Solutions
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.