Avantor, Inc. (AVTR) shareholders
AVTRNYSELaboratory Analytical InstrumentsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 10/3018% below fair value
$15.54−0.08 (-0.51%)
Close on Nov 13, 2026Market cap $10.53BP/E 31.1Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
700M of 678M shares
Institutional holders
459
99 new, 66 sold out
Net institutional buying
24M
In Q2 2026
Insider trades, 12 months
7 buys · 0 sales
Net bought $7.56M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Dodge & Cox | 117,433,484 | 17.20% | 13G (passive) amendment | Jun 30, 2025 |
| BlackRock, Inc. | 59,049,575 | 8.70% | 13G (passive) amendment | Sep 30, 2025 |
| Vanguard Capital Management | 35,802,263 | 5.29% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of AVTR | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Dodge & Cox | 120,020,974 | 17.71% | $1.19B | +372,645 | 0.62% |
| BlackRock, Inc. | 70,281,231 | 10.37% | $695.78M | +4,577,677 | 0.01% |
| Vanguard Portfolio Management LLC | 31,343,250 | 4.63% | $310.30M | +67,403 | 0.01% |
| Vanguard Capital Management LLC | 30,802,835 | 4.55% | $304.95M | +196,723 | 0.01% |
| Greenhaven Associates Inc | 24,637,310 | 3.64% | $243.91M | +2,043,472 | 2.82% |
| State Street Corp | 21,572,974 | 3.18% | $213.57M | +851,895 | 0.01% |
| Dimensional Fund Advisors LP | 20,412,181 | 3.01% | $202.09M | +3,517,532 | 0.04% |
| Engine Capital Management, LP | 19,860,830 | 2.93% | $196.62M | +80,000 | 19.13% |
| Barrow Hanley Mewhinney & Strauss LLC | 19,735,968 | 2.91% | $195.39M | −2,622,431 | 0.59% |
| New Mountain Capital, L.L.C. | 14,000,000 | 2.07% | $138.60M | – | 100.00% |
| Invesco Ltd. | 13,885,360 | 2.05% | $137.47M | +5,811,506 | 0.01% |
| Geode Capital Management, LLC | 13,180,567 | 1.95% | $130.52M | +289,146 | 0.01% |
| Marshall Wace, Llp | 13,130,158 | 1.94% | $129.99M | +9,692,325 | 0.10% |
| Aqr Capital Management LLC | 11,627,566 | 1.72% | $115.11M | +6,760,358 | 0.04% |
| Bank Of America Corp /De/ | 10,989,344 | 1.62% | $108.79M | +3,921,781 | 0.01% |
| Earnest Partners LLC | 10,748,525 | 1.59% | $106.41M | +4,723,813 | 0.38% |
| London Co Of Virginia | 10,485,960 | 1.55% | $103.81M | −366,297 | 0.59% |
| Fuller & Thaler Asset Management, Inc. | 10,256,345 | 1.51% | $101.54M | −375,767 | 0.28% |
| D. E. Shaw & Co., Inc. | 9,571,523 | 1.41% | $94.76M | −3,539,151 | 0.05% |
| First Pacific Advisors, LP | 8,190,740 | 1.21% | $81.09M | +101,717 | 1.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 459 | 700M | 100.0% | 99 / 189 | 111 / 66 | 106M | 81M |
| Q1 2026 | 433 | 676M | 99.7% | 91 / 168 | 127 / 72 | 162M | 138M |
| Q4 2025 | 421 | 718M | 100.0% | 65 / 116 | 193 / 102 | 115M | 75M |
| Q3 2025 | 466 | 681M | 100.0% | 75 / 144 | 203 / 111 | 107M | 140M |
| Q2 2025 | 505 | 713M | 100.0% | 92 / 217 | 143 / 65 | 127M | 111M |
| Q1 2025 | 484 | 697M | 100.0% | 63 / 196 | 167 / 65 | 75M | 61M |
| Q4 2024 | 493 | 686M | 100.0% | 62 / 170 | 210 / 80 | 80M | 80M |
| Q3 2024 | 519 | 687M | 100.0% | 80 / 207 | 173 / 70 | 134M | 55M |
| Q2 2024 | 514 | 651M | 96.1% | 75 / 190 | 174 / 52 | 66M | 64M |
| Q1 2024 | 496 | 652M | 96.2% | 64 / 207 | 161 / 37 | 64M | 62M |
| Q4 2023 | 471 | 650M | 96.0% | 86 / 162 | 164 / 49 | 110M | 89M |
| Q3 2023 | 438 | 629M | 92.8% | 52 / 181 | 136 / 51 | 74M | 51M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
331 funds held AVTR in Q2 2026, 33% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of AVTR | Value | % of fund | As of |
|---|---|---|---|---|---|
| Dodge & Cox Stock Fund | 74,871,715 | 11.05% | $741.23M | 0.63% | Jun 30, 2026 |
| iShares Core S&P Mid-Cap ETF | 23,369,146 | 3.45% | $231.35M | 0.19% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 21,677,422 | 3.20% | $214.61M | 0.01% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 15,664,504 | 2.31% | $155.08M | 0.08% | Jun 30, 2026 |
| Bridge Builder Large Cap Value Fund | 10,911,894 | 1.61% | $108.03M | 0.37% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 9,918,894 | 1.46% | $98.20M | 0.14% | Jun 30, 2026 |
| Invesco Small Cap Value Fund | 9,615,932 | 1.42% | $132.51M | 1.19% | Jul 31, 2026 |
| Touchstone Funds Group Trust-Touchstone Mid Cap Fund | 9,518,552 | 1.40% | $94.23M | 2.09% | Jun 30, 2026 |
| Undiscovered Managers Behavioral Value Fund | 8,365,453 | 1.23% | $82.82M | 0.92% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 7,837,892 | 1.16% | $77.60M | 0.08% | Jun 30, 2026 |
| Dodge & Cox Global Stock Fund | 7,756,600 | 1.14% | $76.79M | 0.59% | Jun 30, 2026 |
| U.S. Small Cap Value Portfolio | 6,943,583 | 1.02% | $95.68M | 0.49% | Jul 31, 2026 |
| Dodge & Cox Balanced Fund | 6,317,700 | 0.93% | $62.55M | 0.42% | Jun 30, 2026 |
| FPA Crescent Fund | 4,862,151 | 0.72% | $48.14M | 0.39% | Jun 30, 2026 |
| AMG Yacktman Fund | 4,500,000 | 0.66% | $44.55M | 0.61% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Emmanuel Ligner | President and CEO, Director | 737,334 | 0.11% | Aug 20, 2026 |
| Michael Stubblefield | President & CEO, Director | 1,917,522 | 0.28% | May 21, 2025 |
| Mary Blenn | EVP, Chief Operating Officer | 250,484 | 0.04% | Nov 12, 2026 |
| Claudius Sokenu | EVP, Chief Legal & Compliance | 313,533 | 0.05% | Nov 3, 2026 |
| Brittany Hankamer | EVP, Chief HR Officer | 295,592 | 0.04% | Nov 3, 2026 |
| Todd W. Garner | EVP and CFO | 49,688 | 0.01% | Sep 23, 2026 |
| Steven W. Eck | SVP & Chief Accounting Officer | 129,593 | 0.02% | Aug 4, 2026 |
| Corey Walker | President, VWR Dist. & Servs. | 384,535 | 0.06% | Jun 22, 2026 |
| Ludovic Brellier | EVP, Bioscience & Medtech | 146,566 | 0.02% | May 5, 2026 |
| Benoit Gourdier | EVP, Bioscience & Medtech | 362,859 | 0.05% | Feb 25, 2026 |
| R. Brent Jones | EVP, Chief Financial Officer | 419,782 | 0.06% | Feb 25, 2026 |
| Christophe Couturier | EVP, AMEA | 211,271 | 0.03% | Aug 12, 2025 |
| James Bramwell | EVP Sales, Customer Excellence | 86,605 | 0.01% | Feb 28, 2025 |
| Michael Severino | Director | 85,821 | 0.01% | May 11, 2026 |
| Mala Murthy | Director | 69,479 | 0.01% | May 11, 2026 |
| Gregory L. Summe | Director | 483,381 | 0.07% | May 11, 2026 |
| Sanjeev K. Mehra | Director | 508,376 | 0.08% | May 11, 2026 |
| Joseph R. Massaro | Director | 77,408 | 0.01% | May 11, 2026 |
| Gregory T. Lucier | Director | 94,006 | 0.01% | May 11, 2026 |
| Louise Makin | Director | 47,140 | 0.01% | May 11, 2026 |
| Simon Dingemans | Director | 56,495 | 0.01% | May 11, 2026 |
| Jonathan M. Peacock | Director | 219,815 | 0.03% | May 12, 2025 |
| Juan Andres | Director | 65,480 | 0.01% | May 12, 2025 |
| John Carethers | Director | 45,858 | 0.01% | May 12, 2025 |
| Lan Kang | Director | 52,315 | 0.01% | May 12, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Mary Blenn EVP, Chief Operating Officer | Nov 10, 2026 | Tax withholding | −2,900 | $15.57 | $45.15K | 250,484 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Oct 30, 2026 | Award | +62,305 | – | – | 313,533 |
| Brittany Hankamer EVP, Chief HR Officer | Oct 30, 2026 | Award | +46,728 | – | – | 295,592 |
| Todd W. Garner EVP and CFO | Sep 21, 2026 | Award | +49,688 | – | – | 49,688 |
| Emmanuel Ligner President and CEO, Director | Aug 18, 2026 | Tax withholding | −29,803 | $13.33 | $397.27K | 737,334 |
| Brittany Hankamer EVP, Chief HR Officer | Aug 14, 2026 | Tax withholding | −181 | $13.66 | $2.47K | 248,864 |
| Steven W. Eck SVP & Chief Accounting Officer | Jul 31, 2026 | Tax withholding | −1,385 | $13.78 | $19.09K | 129,593 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Jul 24, 2026 | Tax withholding | −1,201 | $11.44 | $13.74K | 251,228 |
| Corey Walker President, VWR Dist. & Servs. | Jun 21, 2026 | Tax withholding | −3,010 | $9.58 | $28.84K | 384,535 |
| Gregory T. Lucier Director | May 8, 2026 | Buy | +10,000 | $8.32 | $83.20K | 60,000 |
| Mala Murthy Director | May 7, 2026 | Award | +25,270 | – | – | 69,479 |
| Gregory T. Lucier Director | May 7, 2026 | Award | +25,270 | – | – | 34,006 |
| Louise Makin Director | May 7, 2026 | Award | +25,270 | – | – | 47,140 |
| Michael Severino Director | May 7, 2026 | Award | +25,270 | – | – | 85,821 |
| Gregory L. Summe Director | May 7, 2026 | Award | +25,270 | – | – | 83,381 |
| Joseph R. Massaro Director | May 7, 2026 | Award | +25,270 | – | – | 77,408 |
| Simon Dingemans Director | May 7, 2026 | Award | +25,270 | – | – | 31,495 |
| Sanjeev K. Mehra Director | May 7, 2026 | Award | +25,270 | – | – | 33,376 |
| Ludovic Brellier EVP, Bioscience & Medtech | May 1, 2026 | Award | +146,566 | – | – | 146,566 |
| Simon Dingemans Director | May 1, 2026 | Buy | +25,000 | $8.14 | $203.50K | 25,000 |
| Steven W. Eck SVP & Chief Accounting Officer | Apr 3, 2026 | Award | +31,645 | – | – | 130,978 |
| Sanjeev K. Mehra Director | Mar 10, 2026 | Buy | +125,000 | $8.01 | $1.00M | 475,000 |
| Brittany Hankamer EVP, Chief HR Officer | Feb 24, 2026 | Tax withholding | −359 | $9.11 | $3.27K | 249,045 |
| Steven W. Eck SVP & Chief Accounting Officer | Feb 24, 2026 | Tax withholding | −452 | $9.11 | $4.12K | 99,333 |
| R. Brent Jones EVP, Chief Financial Officer | Feb 23, 2026 | Tax withholding | −2,805 | $8.89 | $24.94K | 419,782 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Feb 23, 2026 | Tax withholding | −2,376 | $8.89 | $21.12K | 252,429 |
| Brittany Hankamer EVP, Chief HR Officer | Feb 23, 2026 | Tax withholding | −1,324 | $8.89 | $11.77K | 249,404 |
| Steven W. Eck SVP & Chief Accounting Officer | Feb 23, 2026 | Tax withholding | −2,017 | $8.89 | $17.93K | 99,785 |
| Benoit Gourdier EVP, Bioscience & Medtech | Feb 23, 2026 | Tax withholding | −3,029 | $8.89 | $26.93K | 362,859 |
| Steven W. Eck SVP & Chief Accounting Officer | Feb 20, 2026 | Tax withholding | −2,125 | $9.03 | $19.19K | 101,802 |
| Benoit Gourdier EVP, Bioscience & Medtech | Feb 20, 2026 | Tax withholding | −4,160 | $9.03 | $37.56K | 365,888 |
| R. Brent Jones EVP, Chief Financial Officer | Feb 20, 2026 | Tax withholding | −9,506 | $9.03 | $85.84K | 422,587 |
| Brittany Hankamer EVP, Chief HR Officer | Feb 20, 2026 | Tax withholding | −1,453 | $9.03 | $13.12K | 250,728 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Feb 20, 2026 | Tax withholding | −2,919 | $9.03 | $26.36K | 254,805 |
| Corey Walker President, VWR Dist. & Servs. | Feb 20, 2026 | Tax withholding | −4,963 | $9.03 | $44.82K | 387,545 |
| Steven W. Eck SVP & Chief Accounting Officer | Feb 19, 2026 | Award | +48,859 | – | – | 103,927 |
| Benoit Gourdier EVP, Bioscience & Medtech | Feb 19, 2026 | Award | +134,364 | – | – | 370,048 |
| R. Brent Jones EVP, Chief Financial Officer | Feb 19, 2026 | Award | +161,237 | – | – | 432,093 |
| Brittany Hankamer EVP, Chief HR Officer | Feb 19, 2026 | Award | +80,618 | – | – | 252,181 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Feb 19, 2026 | Award | +80,618 | – | – | 257,724 |
| Mary Blenn EVP, Chief Operating Officer | Feb 19, 2026 | Award | +235,993 | – | – | 253,384 |
| Corey Walker President, VWR Dist. & Servs. | Feb 19, 2026 | Award | +161,237 | – | – | 392,508 |
| Emmanuel Ligner President and CEO, Director | Feb 19, 2026 | Award | +483,713 | – | – | 767,137 |
| Gregory T. Lucier Director | Feb 19, 2026 | Buy | +50,000 | $9.16 | $458.00K | 50,000 |
| Gregory L. Summe Director | Feb 12, 2026 | Buy | +100,000 | $9.40 | $940.00K | 400,000 |
| Simon Dingemans Director | Jan 2, 2026 | Award | +6,225 | – | – | 6,225 |
| Sanjeev K. Mehra Director | Dec 5, 2025 | Buy | +350,000 | $11.09 | $3.88M | 350,000 |
| Sanjeev K. Mehra Director | Dec 5, 2025 | Award | +8,106 | – | – | 8,106 |
| Emmanuel Ligner President and CEO, Director | Nov 17, 2025 | Buy | +87,500 | $11.35 | $993.13K | 283,424 |
| Mary Blenn EVP, Chief Operating Officer | Nov 10, 2025 | Award | +17,391 | – | – | 17,391 |
| Gregory L. Summe Director | Oct 30, 2025 | Buy | +100,000 | $11.25 | $1.13M | 300,000 |
| Gregory T. Lucier Director | Oct 3, 2025 | Award | +8,736 | – | – | 8,736 |
| Benoit Gourdier EVP, Bioscience Production | Oct 2, 2025 | Tax withholding | −1,264 | $13.77 | $17.41K | 235,684 |
| Gregory L. Summe Director | Aug 21, 2025 | Buy | +100,000 | $12.56 | $1.26M | 200,000 |
| Emmanuel Ligner President and CEO, Director | Aug 18, 2025 | Award | +195,924 | – | – | 195,924 |
| Brittany Hankamer EVP, Chief HR Officer | Aug 14, 2025 | Tax withholding | −181 | $12.98 | $2.35K | 171,563 |
| Christophe Couturier EVP, AMEA | Aug 8, 2025 | Award | +65,217 | – | – | 211,271 |
| Steven W. Eck SVP & Chief Accounting Officer | Aug 5, 2025 | Sale(10b5-1 plan) | −3,476 | $11.39 | $39.59K | 55,068 |
| Steven W. Eck SVP & Chief Accounting Officer | Jul 31, 2025 | Tax withholding | −1,385 | $13.44 | $18.61K | 58,544 |
| Claudius Sokenu EVP, Chief Legal & Compliance | Jul 24, 2025 | Tax withholding | −3,123 | $14.01 | $43.75K | 177,106 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
4.01%
27M shares short
Days to cover
2.0
At 13M shares a day
Change since last report
-22.3%
From 35M shares
Short volume, 20 days
46.4%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Avantor's stock actually held short. Settlement fails (shares not delivered on time) peaked at 53,800 shares on Aug 21, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Todd Edwards officer | Nov 6, 2025 | 29,131 | $732.93K | Nov 6, 2025 | Restricted shares vest |
| Steven W. Eck Officer | Aug 5, 2025 | 3,476 | $39.59K | Aug 5, 2025 | Restricted Stock Grant Vest |
| Steven W. Eck Officer | Feb 27, 2025 | 1,033 | $17.57K | Feb 27, 2025 | Restricted Stock Grant Vest |
| James Bramwell Officer | Feb 27, 2025 | 774 | $13.17K | Feb 27, 2025 | Restricted stock vest |
| James Bramwell Officer | Feb 26, 2025 | 3,758 | $65.89K | Feb 26, 2025 | Restricted stock vest |
| Steven W. Eck Officer | Feb 26, 2025 | 4,907 | $86.04K | Feb 26, 2025 | Restricted Stock Grant Vest |
| Steven W. Eck Officer | Sep 5, 2024 | 3,525 | $88.34K | Sep 5, 2024 | RSU Vesting |
| Wondrasch Michael Officer | Aug 26, 2024 | 17,000 | $434.25K | Aug 26, 2024 | Stock Option Exercise |
| Christophe Couturier Officer | Jul 31, 2024 | 100 | $2.80K | Jul 31, 2024 | Restricted stock vest |
| Christophe Couturier Officer | Jul 30, 2024 | 10,000 | $270.06K | Jul 30, 2024 | Restricted Stock Vest |
| Randy Lee Stone Former officer | Jul 26, 2024 | 143,523 | $3.28M | Jul 26, 2024 | Restricted stock vest |
| Steven W. Eck Officer | Mar 12, 2024 | 3,685 | $95.00K | Mar 8, 2024 | Restricted Stock Grant Vest |
| Brophy Gerard Officer | Mar 1, 2024 | 232,267 | $5.81M | Mar 1, 2024 | Restricted stock vest |
| James Bramwell Officer | Feb 29, 2024 | 4,910 | $120.42K | Feb 29, 2024 | Restricted stock vest |
| Christophe Couturier Officer | Feb 29, 2024 | 13,074 | $320.76K | Feb 29, 2024 | Restricted stock vest |
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