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 ($47.2m this quarter). Holder counts are more reliable. Shares outstanding: 674.4m as of 2023-01-26, 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 ≈ $21.10. Options: 15 managers hold calls ($23.6m notional), 9 hold puts ($3.9m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 440 |
| Q4 2022 | 445 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $95.7m | $12.8m | 0.13 |
| Q4 2022 | $23.6m | $3.9m | 0.17 |
Biggest buyers
| T. Rowe Price Investment Management, Inc. | Added | +18.7m |
| VANGUARD GROUP INC | Added | +3.5m |
| FIL Ltd | Added | +2.7m |
| Amundi | Added | +2.6m |
| AMERICAN CENTURY COMPANIES INC | Added | +2.5m |
| Impax Asset Management Group plc | Added | +1.7m |
| CITADEL ADVISORS LLC | Added | +1.7m |
| Holocene Advisors, LP | Added | +1.6m |
| MILLENNIUM MANAGEMENT LLC | Added | +1.6m |
| Castle Hook Partners LP | New | +1.5m |
Biggest sellers
| JANUS HENDERSON GROUP PLC | Reduced | -9.4m |
| Nuveen Asset Management, LLC | Reduced | -6.9m |
| BESSEMER GROUP INC | Reduced | -5.9m |
| Avidity Partners Management LP | Sold out | -4.5m |
| Invesco Ltd. | Reduced | -4.4m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -3.5m |
| FMR LLC | Reduced | -3.2m |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | Reduced | -3.2m |
| VIKING GLOBAL INVESTORS LP | Sold out | -2.9m |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -2.9m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.1m286.9k shares |
| JANE STREET GROUP, LLC | Reduced | $3.0m142.0k shares |
| ROYAL BANK OF CANADA | Reduced | $2.2m104.6k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $2.1m101.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.8m85.7k shares |
| CITADEL ADVISORS LLC | Reduced | $1.6m75.4k shares |
| Assenagon Asset Management S.A. | Added | $1.6m73.5k shares |
| GROUP ONE TRADING LLC | Reduced | $1.4m67.9k shares |
| Walleye Trading LLC | Reduced | $1.0m49.4k shares |
| PEAK6 Investments LLC | Reduced | $1.0m49.4k shares |
Biggest puts
| PEAK6 Investments LLC | Reduced | $2.9m135.7k shares |
| CITADEL ADVISORS LLC | Reduced | $388.1k18.4k shares |
| Walleye Trading LLC | Reduced | $282.6k13.4k shares |
| JANE STREET GROUP, LLC | Reduced | $234.1k11.1k shares |
| GROUP ONE TRADING LLC | Reduced | $109.7k5.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $35.0k1.7k shares |
| Cutler Group LLC / CA | Added | $5.0k5.4k shares |
| Walleye Capital LLC | Reduced | $2.1k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 2022
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 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 3 | $21.1m | — |
| Q1 2022 | 0 | — | 1 | $3.0m | — |
| Q2 2022 | 0 | — | 2 | $1.8m | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 2 | $573.1k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-11-16 | Stubblefield Michael CEO, director · See Footnote | Bought | $314.2k15.0k shares |
| 2022-11-16 | Szlosek Thomas A EVP & CFO · By Trust | Bought | $258.9k12.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| T. Rowe Price Investment Management, Inc. 1.24% of their portfolio | 76.3m $1.6bn | Added +18.7m |
| VANGUARD GROUP INC 0.04% of their portfolio | 61.8m $1.3bn | Added +3.5m |
| BlackRock Inc. 0.03% of their portfolio | 39.4m $830.1m | Added +1.2m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.13% of their portfolio | 38.9m $820.7m | Reduced -3.5m |
| CANADA PENSION PLAN INVESTMENT BOARD 0.92% of their portfolio | 24.6m $517.9m | Added +297.4k |
| Boston Partners 0.51% of their portfolio | 17.9m $378.5m | Reduced -2.4m |
| New Mountain Capital, L.L.C. 5.41% of their portfolio | 14.0m $295.3m | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.23% of their portfolio | 13.6m $287.1m | Added +2.5m |
| WELLINGTON MANAGEMENT GROUP LLP 0.05% of their portfolio | 12.7m $268.3m | Reduced -224.1k |
| STATE STREET CORP 0.02% of their portfolio | 12.2m $258.0m | Reduced -25.0k |
| JANUS HENDERSON GROUP PLC 0.16% of their portfolio | 10.9m $230.0m | Reduced -9.4m |
| SAMLYN CAPITAL, LLC 3.79% of their portfolio | 9.2m $193.3m | Added +176.9k |
| PARNASSUS INVESTMENTS, LLC 0.46% of their portfolio | 8.8m $184.6m | Reduced -490.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 8.4m $177.6m | Added +311.9k |
| Nuveen Asset Management, LLC 0.06% of their portfolio | 7.4m $155.3m | Reduced -6.9m |
| Robeco Schweiz AG 2.75% of their portfolio | 7.1m $150.7m | Added +802.7k |
| BROWN BROTHERS HARRIMAN & CO 1.19% of their portfolio | 6.4m $135.7m | Reduced -20 |
| NORGES BANK 0.03% of their portfolio | 5.6m $118.9m | Added +194.8k |
| MAVERICK CAPITAL LTD 2.86% of their portfolio | 5.6m $117.4m | Reduced -563.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.13% of their portfolio | 5.3m $111.1m | Reduced -163.2k |
| TrinityBridge Ltd 5.80% of their portfolio | 5.2m $109.2m | Added +128.8k |
| Invesco Ltd. 0.03% of their portfolio | 4.9m $103.2m | Reduced -4.4m |
| MILLENNIUM MANAGEMENT LLC 0.11% of their portfolio | 4.7m $98.7m | Added +1.6m |
| PICTET ASSET MANAGEMENT SA 0.14% of their portfolio | 4.7m $98.4m | Added +76.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.05% of their portfolio | 4.6m $97.2m | Reduced -826.1k |
| EMINENCE CAPITAL, LP 1.72% of their portfolio | 4.4m $92.4m | Reduced -332.9k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 4.4m $92.1m | Added +380.4k |
| GOLDMAN SACHS GROUP INC 0.03% of their portfolio | 4.3m $91.5m | Added +847.9k |
| D. E. Shaw & Co., Inc. 0.15% of their portfolio | 4.3m $91.3m | Added +1.5m |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.70% of their portfolio | 4.3m $91.1m | Added +330.4k |
| Palestra Capital Management LLC 4.94% of their portfolio | 4.3m $89.9m | Added +177.3k |
| BESSEMER GROUP INC 0.21% of their portfolio | 4.1m $86.0m | Reduced -5.9m |
| Legal & General Group Plc 0.03% of their portfolio | 4.0m $83.6m | Added +118.8k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 3.9m $82.6m | Added +166.1k |
| Holocene Advisors, LP 0.50% of their portfolio | 3.9m $81.3m | Added +1.6m |
| Allianz Asset Management GmbH 0.18% of their portfolio | 3.7m $79.0m | Reduced -104.3k |
| BROWN ADVISORY INC 0.14% of their portfolio | 3.7m $77.9m | Added +723.1k |
| Amundi 0.04% of their portfolio | 3.2m $71.5m | Added +2.6m |
| TD Asset Management Inc 0.08% of their portfolio | 3.1m $65.8m | Added +102.1k |
| FIL Ltd 0.08% of their portfolio | 3.1m $65.5m | Added +2.7m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.8m $58.7m | Added +100.5k |
| Swiss National Bank 0.04% of their portfolio | 2.7m $57.8m | Added +97.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 2.7m $57.1m | Added +168.3k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.5m $52.4m | Added +95.9k |
| MORGAN STANLEY 0.01% of their portfolio | 2.4m $51.5m | Added +806.4k |
| COUNTRY TRUST BANK 1.49% of their portfolio | 2.4m $50.2m | Added +23.9k |
| Clearbridge Investments, LLC 0.05% of their portfolio | 2.3m $47.7m | Reduced -1.3m |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.61% of their portfolio | 2.2m $47.2m | Reduced -130.0k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.36% of their portfolio | 2.2m $47.0m | Added +1.4m |
| Polar Capital Holdings Plc 0.35% of their portfolio | 2.1m $44.3m | Reduced -191.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio | 2.1m $43.9m | Reduced -2.9m |
| Point72 Asset Management, L.P. 0.16% of their portfolio | 2.1m $43.6m | Reduced -276.4k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 2.0m $43.1m | Added +97.0k |
| NEUBERGER BERMAN GROUP LLC 0.04% of their portfolio | 2.0m $42.9m | Reduced -797.3k |
| Skandinaviska Enskilda Banken AB (publ) 0.30% of their portfolio | 1.9m $40.2m | Added +1.2m |
| Magnetar Financial LLC 0.67% of their portfolio | 1.9m $39.4m | Reduced -173.1k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 1.8m $38.8m | Added +112.2k |
| Impax Asset Management Group plc 0.17% of their portfolio | 1.8m $37.5m | Added +1.7m |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 1.8m $37.1m | Added +1.7m |
| NEW SOUTH CAPITAL MANAGEMENT INC 1.64% of their portfolio | 1.7m $35.5m | Reduced -22.4k |
| AQR CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 1.6m $34.1m | Added +563.6k |
| PFM Health Sciences, LP 1.43% of their portfolio | 1.6m $33.9m | Reduced -472.0k |
| Balyasny Asset Management L.P. 0.12% of their portfolio | 1.6m $33.0m | Reduced -81.4k |
| Castle Hook Partners LP 3.55% of their portfolio | 1.5m $32.2m | New |
| Obermeyer Wealth Partners 2.28% of their portfolio | 1.4m $30.2m | Reduced -52.8k |
| PRUDENTIAL FINANCIAL INC 0.05% of their portfolio | 1.4m $29.5m | Added +310.4k |
| CAUSEWAY CAPITAL MANAGEMENT LLC 0.83% of their portfolio | 1.4m $28.7m | Added +422.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.05% of their portfolio | 1.3m $27.8m | Reduced -10.4k |
| California Public Employees Retirement System 0.02% of their portfolio | 1.3m $27.7m | Reduced -100.5k |
| National Pension Service 0.05% of their portfolio | 1.2m $26.0m | Added +174.0k |
| IRIDIAN ASSET MANAGEMENT LLC/CT 2.48% of their portfolio | 1.2m $25.8m | Added +156.7k |
| CIBC Private Wealth Group LLC 0.08% of their portfolio | 1.2m $24.0m | Reduced -45.7k |
| TWO SIGMA INVESTMENTS, LP 0.08% of their portfolio | 1.1m $24.1m | Added +896.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.04% of their portfolio | 1.1m $23.9m | Added +94.5k |
| JUPITER ASSET MANAGEMENT LTD 0.34% of their portfolio | 1.1m $23.1m | Reduced -31.3k |
| AVIVA PLC 0.11% of their portfolio | 1.1m $22.6m | Added +389.6k |
| DUDLEY & SHANLEY, INC. 5.05% of their portfolio | 1.1m $22.4m | Added +408.9k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.39% of their portfolio | 1.1m $22.3m | Added +970.0k |
| NATIXIS ADVISORS, LLC 0.08% of their portfolio | 1.0m $22.0m | Added +389.5k |
| TWINBEECH CAPITAL LP 0.41% of their portfolio | 1.0m $21.6m | Added +54.5k |
| GW&K Investment Management, LLC 0.22% of their portfolio | 1.0m $21.3m | Reduced -47.1k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.34% of their portfolio | 962.6k $20.3m | Reduced -65.2k |
| TWO SIGMA ADVISERS, LP 0.05% of their portfolio | 906.6k $19.1m | Added +300.5k |
| CREDIT SUISSE AG/ 0.02% of their portfolio | 871.0k $18.4m | Added +168.3k |
| Woodline Partners LP 0.25% of their portfolio | 864.2k $18.2m | New |
| WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD 5.50% of their portfolio | 858.2k $18.1m | Added +49.1k |
| OSTERWEIS CAPITAL MANAGEMENT INC 1.30% of their portfolio | 848.0k $17.9m | New |
| UBS Group AG 0.01% of their portfolio | 821.8k $17.3m | Added +141.2k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.27% of their portfolio | 801.8k $16.9m | Reduced -38.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 793.1k $16.7m | Added +70.8k |
| Thematics Asset Management 0.99% of their portfolio | 776.0k $16.4m | First filing |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.50% of their portfolio | 758.8k $16.0m | Reduced -17.8k |
| CITIGROUP INC 0.02% of their portfolio | 753.5k $15.9m | Added +142.4k |
| Squarepoint Ops LLC 0.10% of their portfolio | 742.9k $15.7m | Reduced -311.7k |
| CRAMER ROSENTHAL MCGLYNN LLC 0.68% of their portfolio | 734.1k $15.5m | Reduced -27.7k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 715.3k $15.1m | Reduced -40.1k |
| LOOMIS SAYLES & CO L P 0.03% of their portfolio | 705.8k $14.9m | Added +36 |
| APG Asset Management N.V. 0.03% of their portfolio | 704.7k $14.9m | Added +512.6k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 696.2k $14.7m | Added +58.6k |
| Qube Research & Technologies Ltd 0.09% of their portfolio | 687.1k $14.5m | Reduced -665.0k |