AVANTOR INC AVTR
COM · Common Stock · CUSIP 05352A100 · ISIN US05352A1007
U.S. chemical company
- SectorTechnology
- IndustryLaboratory Analytical Instruments
- HeadquartersRadnor, PA
- Websiteavantorsciences.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($75.7m this quarter). Holder counts are more reliable. Shares outstanding: 680.9m as of 2025-02-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $21.08. Options: 20 managers hold calls ($52.6m notional), 16 hold puts ($144.8m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 440 |
| Q4 2022 | 445 |
| Q1 2023 | 467 |
| Q2 2023 | 444 |
| Q3 2023 | 441 |
| Q4 2023 | 473 |
| Q1 2024 | 498 |
| Q2 2024 | 517 |
| Q3 2024 | 521 |
| Q4 2024 | 495 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 257 | 207 |
| Q2 2023 | 215 | 223 |
| Q3 2023 | 229 | 187 |
| Q4 2023 | 228 | 212 |
| Q1 2024 | 261 | 198 |
| Q2 2024 | 260 | 225 |
| Q3 2024 | 277 | 242 |
| Q4 2024 | 209 | 289 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $43.3m | $315.6m | 7.29 |
| Q2 2024 | $97.6m | $149.7m | 1.53 |
| Q3 2024 | $78.2m | $273.2m | 3.49 |
| Q4 2024 | $52.6m | $144.8m | 2.76 |
Biggest buyers
| Dodge & Cox | Added | +30.7m |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | Added | +8.9m |
| UBS Group AG | Added | +3.9m |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Added | +3.0m |
| Clarkston Capital Partners, LLC | Added | +2.5m |
| FMR LLC | Added | +2.3m |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | Added | +1.8m |
| MORGAN STANLEY | Added | +1.6m |
| DIMENSIONAL FUND ADVISORS LP | Added | +1.4m |
| BESSEMER GROUP INC | Added | +1.2m |
Biggest sellers
| T. Rowe Price Investment Management, Inc. | Reduced | -25.7m |
| Boston Partners | Reduced | -12.7m |
| BANK OF AMERICA CORP /DE/ | Reduced | -4.1m |
| Durable Capital Partners LP | Reduced | -3.2m |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Sold out | -2.4m |
| PARNASSUS INVESTMENTS, LLC | Sold out | -2.1m |
| JPMORGAN CHASE & CO | Reduced | -2.1m |
| MILLENNIUM MANAGEMENT LLC | Sold out | -2.0m |
| BlackRock, Inc. | Reduced | -2.0m |
| SG Capital Management LLC | Sold out | -1.5m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.3m582.6k shares |
| Arvin Capital Management LP | Added | $6.3m300.0k shares |
| MOORE CAPITAL MANAGEMENT, LP | Reduced | $6.0m285.0k shares |
| SIMPLEX TRADING, LLC | Added | $5.1m243.3k shares |
| JPMORGAN CHASE & CO | Added | $5.1m240.0k shares |
| CITADEL ADVISORS LLC | Added | $4.8m228.0k shares |
| PEAK6 LLC | First filing | $3.0m144.2k shares |
| GOLDMAN SACHS GROUP INC | Unchanged | $1.7m80.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.3m61.2k shares |
| Verition Fund Management LLC | Unchanged | $1.2m55.3k shares |
Biggest puts
| BARCLAYS PLC | Added | $83.7m4.0m shares |
| JANE STREET GROUP, LLC | Reduced | $27.7m1.3m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $14.0m663.1k shares |
| CITADEL ADVISORS LLC | Added | $6.8m320.9k shares |
| IMC-Chicago, LLC | Added | $2.6m124.9k shares |
| Squarepoint Ops LLC | Reduced | $2.2m103.8k shares |
| JPMORGAN CHASE & CO | Reduced | $1.9m90.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.7m82.4k shares |
| GOLDMAN SACHS GROUP INC | Unchanged | $1.7m80.0k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $1.2m55.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| DODGE & COX 13G · institution +2.6 pts · filed 2025-08-13 | 17.2% |
| BlackRock, Inc. 13G · institution filed 2025-10-17 | 8.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), BARROW HANLEY MEWHINNEY & STRAUSS LLC (4.9%, 2026-02-11), T. Rowe Price Investment Management, Inc. (4.8%, 2025-11-14)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 2 | $1.1m | — |
| Q2 2023 | 0 | — | 1 | $31.7k | $31.7k |
| Q3 2023 | 0 | — | 2 | $693.1k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 3 | $687.5k | $94.4k |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 2 | $361.1k | $272.8k |
| Q4 2024 | 0 | — | 0 | — | — |
None reported in Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| Dodge & Cox 1.22% of their portfolio | 99.1m $2.1bn | Added +30.7m |
| BlackRock, Inc. 0.03% of their portfolio | 70.9m $1.5bn | Reduced -2.0m |
| VANGUARD GROUP INC 0.02% of their portfolio | 64.0m $1.3bn | Added +1.2m |
| T. Rowe Price Investment Management, Inc. 0.54% of their portfolio | 41.4m $871.5m | Reduced -25.7m |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 2.19% of their portfolio | 30.5m $643.2m | Added +8.9m |
| STATE STREET CORP 0.02% of their portfolio | 23.3m $491.1m | Added +939.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.42% of their portfolio | 21.0m $443.3m | Added +112.6k |
| JANUS HENDERSON GROUP PLC 0.19% of their portfolio | 18.1m $382.1m | Added +443.5k |
| New Mountain Capital, L.L.C. 100.00% of their portfolio | 14.0m $295.0m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 11.2m $236.2m | Added +81.5k |
| Invesco Ltd. 0.04% of their portfolio | 9.8m $206.2m | Added +317.3k |
| 1832 Asset Management L.P. 0.36% of their portfolio | 9.5m $201.2m | Added +497.7k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.17% of their portfolio | 9.2m $193.0m | Added +3.0m |
| BESSEMER GROUP INC 0.31% of their portfolio | 8.9m $186.9m | Added +1.2m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.04% of their portfolio | 8.6m $181.1m | Added +509.8k |
| Clarkston Capital Partners, LLC 3.29% of their portfolio | 8.1m $171.6m | Added +2.5m |
| Robeco Schweiz AG 3.43% of their portfolio | 7.6m $160.4m | Added +848.8k |
| FMR LLC 0.01% of their portfolio | 7.0m $147.3m | Added +2.3m |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 6.8m $144.1m | Added +1.4m |
| NORGES BANK 0.02% of their portfolio | 6.8m $142.5m | Reduced -1.3m |
| Pictet Asset Management Holding SA 0.15% of their portfolio | 6.6m $138.2m | Added +179.9k |
| Boston Partners 0.16% of their portfolio | 6.4m $135.3m | Reduced -12.7m |
| NORTHERN TRUST CORP 0.02% of their portfolio | 6.2m $130.0m | Added +1.1m |
| MORGAN STANLEY 0.01% of their portfolio | 5.9m $124.9m | Added +1.6m |
| CCLA Investment Management 1.79% of their portfolio | 5.4m $112.9m | Added +229.2k |
| UBS Group AG 0.02% of their portfolio | 5.1m $107.9m | Added +3.9m |
| VOYA INVESTMENT MANAGEMENT LLC 0.11% of their portfolio | 5.0m $105.6m | Reduced -868.9k |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 4.9m $103.1m | Added +640.9k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 4.8m $101.8m | Added +68.6k |
| Durable Capital Partners LP 0.83% of their portfolio | 4.8m $101.3m | Reduced -3.2m |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.24% of their portfolio | 4.7m $100.1m | Reduced -116.5k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.98% of their portfolio | 4.7m $99.0m | Added +1.8m |
| Sound Shore Management Inc /CT/ 3.26% of their portfolio | 4.7m $98.6m | Added +1.2m |
| TrinityBridge Ltd 2.76% of their portfolio | 4.6m $98.0m | Unchanged |
| Legal & General Group Plc 0.02% of their portfolio | 4.1m $86.7m | Reduced -251.7k |
| Artemis Investment Management LLP 1.17% of their portfolio | 3.9m $81.8m | Reduced -158.0k |
| TD Asset Management Inc 0.06% of their portfolio | 3.4m $71.9m | Added +84.8k |
| Thrivent Financial for Lutherans 0.13% of their portfolio | 3.1m $65.8m | Reduced -151.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 3.0m $63.8m | Added +74.7k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.42% of their portfolio | 3.0m $63.4m | Reduced -105.1k |
| BROWN BROTHERS HARRIMAN & CO 0.43% of their portfolio | 2.9m $61.6m | Added +7.8k |
| Standard Investments LLC 3.39% of their portfolio | 2.9m $60.9m | Unchanged |
| DAVENPORT & Co LLC 0.35% of their portfolio | 2.8m $59.9m | Added +497.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 2.4m $50.5m | Reduced -4.1m |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 2.2m $47.2m | Reduced -386.4k |
| Clearbridge Investments, LLC 0.04% of their portfolio | 2.2m $46.4m | Reduced -19.9k |
| RHUMBLINE ADVISERS 0.04% of their portfolio | 1.9m $40.5m | Added +33.7k |
| Swiss National Bank 0.03% of their portfolio | 1.9m $40.5m | Reduced -95.6k |
| Impax Asset Management Group plc 0.17% of their portfolio | 1.8m $37.7m | Added +421.3k |
| COUNTRY TRUST BANK 0.94% of their portfolio | 1.8m $37.5m | Reduced -59.6k |
| Perpetual Ltd 0.44% of their portfolio | 1.8m $37.2m | Added +493.4k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 1.8m $37.1m | Added +170.5k |
| Amundi 0.01% of their portfolio | 1.8m $38.8m | Added +64.8k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.6m $34.7m | Added +225.8k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 1.6m $33.1m | First filing |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 1.5m $32.6m | Reduced -51.6k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.5m $31.7m | Reduced -526.6k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 1.5m $31.6m | Reduced -26.7k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.29% of their portfolio | 1.5m $30.9m | Reduced -27.0k |
| SEI INVESTMENTS CO 0.04% of their portfolio | 1.5m $30.6m | Added +285.7k |
| MACQUARIE GROUP LTD 0.04% of their portfolio | 1.4m $30.3m | Reduced -83.0k |
| Russell Investments Group, Ltd. 0.04% of their portfolio | 1.4m $30.1m | Added +222.3k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 1.4m $29.1m | Reduced -105.3k |
| NEW SOUTH CAPITAL MANAGEMENT INC 1.17% of their portfolio | 1.3m $27.7m | Reduced -65.6k |
| BARCLAYS PLC 0.01% of their portfolio | 1.3m $26.6m | Added +280.6k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 1.2m $26.2m | Reduced -704.1k |
| GREAT LAKES ADVISORS, LLC 0.22% of their portfolio | 1.2m $25.8m | Reduced -45.4k |
| Woodline Partners LP 0.17% of their portfolio | 1.2m $25.4m | New |
| National Pension Service 0.02% of their portfolio | 1.2m $25.4m | Reduced -83.6k |
| WESTWOOD HOLDINGS GROUP INC 0.19% of their portfolio | 1.2m $25.3m | Added +209.0k |
| LAZARD ASSET MANAGEMENT LLC 0.04% of their portfolio | 1.2m $24.8m | Reduced -648.2k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 1.2m $24.3m | Added +17.6k |
| Zuckerman Investment Group, LLC 2.32% of their portfolio | 1.1m $24.2m | Added +170.6k |
| California Public Employees Retirement System 0.02% of their portfolio | 1.1m $23.2m | Reduced -106.9k |
| DUDLEY & SHANLEY, INC. 3.53% of their portfolio | 1.1m $22.9m | Unchanged |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.21% of their portfolio | 1.1m $22.8m | Reduced -59.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 1.1m $22.6m | Reduced -34.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.0m $21.9m | Reduced -2.1m |
| CANADA LIFE ASSURANCE Co 0.04% of their portfolio | 1.0m $21.3m | Added +55.5k |
| CITIGROUP INC 0.02% of their portfolio | 1.0m $21.3m | Added +589.2k |
| Avidity Partners Management LP 1.99% of their portfolio | 947.0k $20.0m | Reduced -288.0k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 922.2k $19.4m | Reduced -99.9k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 866.8k $18.3m | Reduced -70.9k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 862.4k $18.2m | Reduced -23.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 861.8k $18.2m | Reduced -40.3k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.53% of their portfolio | 857.5k $18.1m | Added +147.2k |
| Retirement Systems of Alabama 0.06% of their portfolio | 827.6k $17.4m | Added +1.7k |
| Arvin Capital Management LP 6.91% of their portfolio | 817.1k $17.2m | Added +143.4k |
| WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD 4.40% of their portfolio | 805.7k $17.0m | Added +48.6k |
| Corebridge Financial, Inc. 0.09% of their portfolio | 770.1k $16.2m | Reduced -33.8k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.21% of their portfolio | 761.5k $16.0m | Reduced -3.5k |
| Walleye Capital LLC 0.15% of their portfolio | 742.4k $15.6m | Reduced -79.1k |
| Thematics Asset Management 0.68% of their portfolio | 740.0k $15.6m | Reduced -210.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.07% of their portfolio | 717.7k $15.1m | Added +185.4k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.02% of their portfolio | 704.8k $14.9m | Reduced -855.2k |
| Stanley Capital Management, LLC 2.86% of their portfolio | 698.5k $14.7m | Unchanged |
| Aberdeen Group plc 0.03% of their portfolio | 676.2k $14.3m | Reduced -18.1k |
| Skandinaviska Enskilda Banken AB (publ) 0.06% of their portfolio | 673.4k $14.2m | Reduced -123.5k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.12% of their portfolio | 671.8k $14.2m | Reduced -51.4k |
| STRS OHIO 0.05% of their portfolio | 655.0k $13.8m | Reduced -57.6k |