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 ($62.2m this quarter). Holder counts are more reliable. Shares outstanding: 678.3m as of 2024-02-09, 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 ≈ $22.83. Options: 20 managers hold calls ($96.1m notional), 14 hold puts ($47.1m).
Trends to Q4 2023
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 242 | 202 |
| Q1 2023 | 257 | 207 |
| Q2 2023 | 215 | 223 |
| Q3 2023 | 229 | 187 |
| Q4 2023 | 228 | 212 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2023 | $58.8m | $3.9m | 0.07 |
| Q2 2023 | $45.0m | $49.0m | 1.09 |
| Q3 2023 | $79.0m | $74.9m | 0.95 |
| Q4 2023 | $96.1m | $47.1m | 0.49 |
Biggest buyers
| Dodge & Cox | Added | +47.9m |
| MORGAN STANLEY | Added | +5.5m |
| Invesco Ltd. | Added | +4.3m |
| Clarkston Capital Partners, LLC | Added | +4.1m |
| Point72 Asset Management, L.P. | New | +4.1m |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | Added | +3.6m |
| MILLENNIUM MANAGEMENT LLC | Added | +2.8m |
| CITADEL ADVISORS LLC | Added | +2.8m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +2.5m |
| Avidity Partners Management LP | New | +2.1m |
Biggest sellers
| T. Rowe Price Investment Management, Inc. | Reduced | -19.5m |
| Meritage Group LP | Sold out | -8.9m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -7.7m |
| AMERICAN CENTURY COMPANIES INC | Reduced | -6.1m |
| Holocene Advisors, LP | Sold out | -4.0m |
| Balyasny Asset Management L.P. | Reduced | -4.0m |
| Sound Shore Management Inc /CT/ | Sold out | -4.0m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -3.8m |
| North Peak Capital Management, LLC | Sold out | -3.5m |
| SHAPIRO CAPITAL MANAGEMENT LLC | Reduced | -2.8m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $18.0m787.4k shares |
| Greenhouse Funds LLLP | Added | $17.1m750.2k shares |
| GROUP ONE TRADING LLC | Added | $11.9m521.1k shares |
| MOORE CAPITAL MANAGEMENT, LP | Reduced | $9.1m400.0k shares |
| BARCLAYS PLC | New | $8.2m360.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $8.1m353.2k shares |
| Arvin Capital Management LP | First filing | $8.0m350.0k shares |
| CITADEL ADVISORS LLC | Added | $4.8m209.2k shares |
| Waratah Capital Advisors Ltd. | New | $2.8m122.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.7m75.5k shares |
Biggest puts
| MILLENNIUM MANAGEMENT LLC | Added | $14.9m653.2k shares |
| CITADEL ADVISORS LLC | Reduced | $8.5m373.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.4m280.5k shares |
| SIMPLEX TRADING, LLC | Added | $5.7m249.9k shares |
| GROUP ONE TRADING LLC | Added | $4.1m181.7k shares |
| PEAK6 Investments LLC | Added | $2.4m105.8k shares |
| JANE STREET GROUP, LLC | Reduced | $2.1m93.5k shares |
| Walleye Capital LLC | Added | $1.0m44.2k shares |
| Walleye Trading LLC | Reduced | $767.1k33.6k shares |
| GTS SECURITIES LLC | Reduced | $463.4k20.3k 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 2023
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 2022 | 0 | — | 1 | $3.0m | — |
| Q2 2022 | 0 | — | 2 | $1.8m | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 2 | $573.1k | 0 | — | — |
| Q1 2023 | 0 | — | 2 | $1.1m | — |
| Q2 2023 | 0 | — | 1 | $31.7k | $31.7k |
| Q3 2023 | 0 | — | 2 | $693.1k | — |
| Q4 2023 | 0 | — | 0 | — | — |
None reported in Q4 2023.
Holders, Q4 2023
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 65.3m $1.5bn | Reduced -112.6k |
| Dodge & Cox 0.89% of their portfolio | 61.2m $1.4bn | Added +47.9m |
| T. Rowe Price Investment Management, Inc. 0.78% of their portfolio | 52.7m $1.2bn | Reduced -19.5m |
| BlackRock Inc. 0.03% of their portfolio | 45.8m $1.0bn | Added +624.6k |
| Boston Partners 0.84% of their portfolio | 27.9m $637.3m | Reduced -139.6k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 1.96% of their portfolio | 24.4m $556.3m | Added +3.6m |
| CANADA PENSION PLAN INVESTMENT BOARD 0.64% of their portfolio | 22.2m $507.2m | Reduced -86.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.06% of their portfolio | 19.5m $446.1m | Reduced -3.8m |
| JANUS HENDERSON GROUP PLC 0.20% of their portfolio | 14.7m $335.0m | Added +194.5k |
| New Mountain Capital, L.L.C. 21.82% of their portfolio | 14.0m $319.6m | Unchanged |
| STATE STREET CORP 0.02% of their portfolio | 13.8m $314.5m | Added +540.9k |
| Invesco Ltd. 0.06% of their portfolio | 10.9m $249.4m | Added +4.3m |
| MILLENNIUM MANAGEMENT LLC 0.22% of their portfolio | 10.2m $232.5m | Added +2.8m |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 9.9m $224.6m | Added +389.7k |
| MORGAN STANLEY 0.01% of their portfolio | 8.5m $193.8m | Added +5.5m |
| Artemis Investment Management LLP 2.66% of their portfolio | 7.9m $181.3m | Added +299.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 7.3m $166.6m | Added +1.1m |
| PARNASSUS INVESTMENTS, LLC 0.35% of their portfolio | 6.9m $158.4m | Unchanged |
| Pictet Asset Management Holding SA 0.17% of their portfolio | 6.9m $156.7m | Added +186.3k |
| NORGES BANK 0.03% of their portfolio | 6.9m $156.5m | Added +236.4k |
| BESSEMER GROUP INC 0.30% of their portfolio | 6.8m $155.3m | Reduced -332.0k |
| Robeco Schweiz AG 2.46% of their portfolio | 6.4m $146.7m | Reduced -1.7m |
| Clarkston Capital Partners, LLC 2.47% of their portfolio | 5.8m $133.4m | Added +4.1m |
| VOYA INVESTMENT MANAGEMENT LLC 0.13% of their portfolio | 5.4m $123.9m | Added +143.2k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.72% of their portfolio | 5.4m $123.7m | Added +1.2m |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 5.1m $117.5m | Reduced -999.3k |
| Point72 Asset Management, L.P. 0.28% of their portfolio | 4.1m $93.4m | New |
| Legal & General Group Plc 0.03% of their portfolio | 4.1m $93.1m | Reduced -316.8k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 4.0m $90.8m | Added +463.7k |
| Woodline Partners LP 0.97% of their portfolio | 3.9m $89.1m | Added +1.0m |
| NORTHERN TRUST CORP 0.02% of their portfolio | 3.8m $87.9m | Reduced -281.2k |
| TrinityBridge Ltd 3.60% of their portfolio | 3.8m $85.9m | Added +360 |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 3.7m $85.1m | Reduced -62.4k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.60% of their portfolio | 3.7m $84.8m | Added +28.0k |
| Thrivent Financial for Lutherans 0.18% of their portfolio | 3.7m $83.6m | Reduced -71.5k |
| BROWN BROTHERS HARRIMAN & CO 0.68% of their portfolio | 3.6m $82.0m | Reduced -1.4m |
| BROWN ADVISORY INC 0.11% of their portfolio | 3.5m $80.1m | Reduced -377.6k |
| TD Asset Management Inc 0.08% of their portfolio | 3.4m $77.7m | Added +331.1k |
| CCLA Investment Management 1.21% of their portfolio | 3.2m $73.9m | Added +62.5k |
| SHAPIRO CAPITAL MANAGEMENT LLC 1.96% of their portfolio | 3.1m $70.8m | Reduced -2.8m |
| CITADEL ADVISORS LLC 0.07% of their portfolio | 3.0m $68.5m | Added +2.8m |
| Clearbridge Investments, LLC 0.06% of their portfolio | 2.9m $65.4m | Added +746.6k |
| Public Sector Pension Investment Board 0.47% of their portfolio | 2.7m $62.2m | Added +186.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.10% of their portfolio | 2.7m $61.8m | Added +2.5m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.6m $59.5m | Reduced -72.7k |
| CAUSEWAY CAPITAL MANAGEMENT LLC 1.49% of their portfolio | 2.6m $58.4m | Reduced -13.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 2.5m $57.7m | Added +75.5k |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.57% of their portfolio | 2.5m $57.3m | Added +194.0k |
| JANE STREET GROUP, LLC 0.07% of their portfolio | 2.4m $54.5m | Added +1.3m |
| Amundi 0.02% of their portfolio | 2.3m $51.1m | Added +55.3k |
| DAVENPORT & Co LLC 0.36% of their portfolio | 2.3m $52.4m | Added +342.5k |
| Avidity Partners Management LP 1.85% of their portfolio | 2.1m $48.4m | New |
| Swiss National Bank 0.04% of their portfolio | 2.1m $48.3m | Reduced -57.8k |
| Wolf Hill Capital Management, LP 4.01% of their portfolio | 2.0m $46.6m | Reduced -1.2m |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.60% of their portfolio | 1.9m $43.0m | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.9m $42.3m | Added +942.6k |
| Impax Asset Management Group plc 0.17% of their portfolio | 1.8m $42.1m | Reduced -45.5k |
| NATIXIS ADVISORS, LLC 0.10% of their portfolio | 1.7m $39.8m | Added +400.6k |
| COUNTRY TRUST BANK 1.09% of their portfolio | 1.7m $39.3m | Reduced -81.5k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.05% of their portfolio | 1.7m $37.9m | Added +748.2k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 1.6m $36.8m | Reduced -29.7k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 1.6m $36.5m | Reduced -6.1m |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 1.5m $33.7m | Added +11.6k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 1.5m $33.2m | Reduced -88.7k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 1.4m $32.9m | Added +196.8k |
| NEW SOUTH CAPITAL MANAGEMENT INC 1.41% of their portfolio | 1.4m $32.3m | Reduced -93.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.07% of their portfolio | 1.4m $32.0m | Added +600.1k |
| Russell Investments Group, Ltd. 0.05% of their portfolio | 1.3m $30.7m | Added +634.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 1.3m $30.1m | Reduced -7.7m |
| CREDIT SUISSE AG/ 0.03% of their portfolio | 1.3m $29.9m | Reduced -3.6k |
| GREAT LAKES ADVISORS, LLC 0.27% of their portfolio | 1.3m $28.9m | Reduced -45.3k |
| Allianz Asset Management GmbH 0.05% of their portfolio | 1.3m $28.8m | Reduced -32.8k |
| Perpetual Ltd 0.29% of their portfolio | 1.2m $28.0m | Added +698.2k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 1.2m $26.8m | Added +280.4k |
| RAYMOND JAMES & ASSOCIATES 0.02% of their portfolio | 1.2m $26.6m | Added +534.9k |
| National Pension Service 0.04% of their portfolio | 1.1m $25.9m | Unchanged |
| Alyeska Investment Group, L.P. 0.17% of their portfolio | 1.1m $25.7m | New |
| TWINBEECH CAPITAL LP 0.41% of their portfolio | 1.1m $25.4m | New |
| DUDLEY & SHANLEY, INC. 4.47% of their portfolio | 1.1m $25.1m | Reduced -13.4k |
| Castle Hook Partners LP 1.54% of their portfolio | 1.1m $24.7m | Reduced -25.6k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.25% of their portfolio | 1.1m $24.6m | Added +732.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 1.1m $24.3m | Reduced -2.4k |
| CIBC Private Wealth Group LLC 0.05% of their portfolio | 1.0m $23.7m | Reduced -13.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 1.0m $23.6m | Added +103.5k |
| California Public Employees Retirement System 0.02% of their portfolio | 1.0m $23.4m | Added +3.2k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 999.8k $22.8m | Added +51.7k |
| Aberdeen Group plc 0.05% of their portfolio | 951.8k $21.7m | Added +843.3k |
| MOORE CAPITAL MANAGEMENT, LP 0.51% of their portfolio | 925.0k $21.1m | Added +175.0k |
| Zuckerman Investment Group, LLC 2.57% of their portfolio | 873.3k $19.9m | Added +243.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 858.2k $19.6m | Reduced -21.2k |
| COMERICA BANK 0.09% of their portfolio | 850.5k $19.4m | Added +151.0k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.27% of their portfolio | 831.8k $19.0m | Reduced -79.7k |
| SOROS FUND MANAGEMENT LLC 0.35% of their portfolio | 800.0k $18.3m | New |
| Skandinaviska Enskilda Banken AB (publ) 0.11% of their portfolio | 796.9k $18.2m | Reduced -4.0k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 787.7k $18.0m | Added +1.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 785.8k $17.9m | Reduced -341.7k |
| NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio | 765.1k $17.5m | Reduced -295.9k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 762.3k $17.4m | New |
| LOOMIS SAYLES & CO L P 0.03% of their portfolio | 761.0k $17.4m | Added +68.6k |
| BARCLAYS PLC 0.01% of their portfolio | 756.5k $17.3m | Added +303.9k |