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 ($90.5m this quarter). Holder counts are more reliable. Shares outstanding: 679.3m as of 2024-04-22, 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 ≈ $25.56. Options: 16 managers hold calls ($43.3m notional), 15 hold puts ($315.6m).
Trends to Q1 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 |
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 |
| Q1 2024 | 261 | 198 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $45.0m | $49.0m | 1.09 |
| Q3 2023 | $79.0m | $74.9m | 0.95 |
| Q4 2023 | $96.1m | $47.1m | 0.49 |
| Q1 2024 | $43.3m | $315.6m | 7.29 |
Biggest buyers
| Durable Capital Partners LP | New | +8.5m |
| Holocene Advisors, LP | New | +3.7m |
| Standard Investments LLC | New | +2.9m |
| Balyasny Asset Management L.P. | Added | +2.5m |
| Dodge & Cox | Added | +2.5m |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Added | +1.7m |
| CCLA Investment Management | Added | +1.5m |
| Artisan Partners Limited Partnership | Added | +1.4m |
| HAWK RIDGE CAPITAL MANAGEMENT LP | New | +1.4m |
| Magnetar Financial LLC | New | +1.4m |
Biggest sellers
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -17.7m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -5.2m |
| PARNASSUS INVESTMENTS, LLC | Reduced | -3.7m |
| BROWN ADVISORY INC | Reduced | -3.4m |
| BlackRock Inc. | Reduced | -3.1m |
| CITADEL ADVISORS LLC | Reduced | -2.7m |
| CAUSEWAY CAPITAL MANAGEMENT LLC | Sold out | -2.6m |
| Point72 Asset Management, L.P. | Reduced | -1.8m |
| T. Rowe Price Investment Management, Inc. | Reduced | -1.6m |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | Reduced | -1.3m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $17.3m676.9k shares |
| PEAK6 Investments LLC | Added | $5.6m217.7k shares |
| Arvin Capital Management LP | Reduced | $5.1m200.0k shares |
| Twin Tree Management, LP | New | $4.8m186.0k shares |
| Jefferies Financial Group Inc. | New | $2.9m112.0k shares |
| CITADEL ADVISORS LLC | Reduced | $2.5m96.9k shares |
| GTS SECURITIES LLC | New | $1.4m53.5k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $1.3m51.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.1m42.0k shares |
| IMC-Chicago, LLC | New | $521.6k20.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $92.4m3.6m shares |
| CITADEL ADVISORS LLC | Added | $88.8m3.5m shares |
| JANE STREET GROUP, LLC | Added | $56.9m2.2m shares |
| UBS Group AG | New | $48.7m1.9m shares |
| Point72 Asset Management, L.P. | New | $7.7m300.0k shares |
| PEAK6 Investments LLC | Added | $6.4m252.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $5.8m225.9k shares |
| GROUP ONE TRADING LLC | Reduced | $3.3m130.3k shares |
| IMC-Chicago, LLC | New | $3.2m125.9k shares |
| Walleye Trading LLC | Added | $1.1m41.7k 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 Q1 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q1 2024 | 0 | — | 3 | $687.5k | $94.4k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-03-08 | Eck Steven W SVP & Chief Accounting Officer | Sold plan | $94.4k3.7k shares |
| 2024-02-29 | Couturier Christophe EVP, AMEA | Sold | $320.7k13.1k shares |
| 2024-02-29 | Bramwell James EVP Sales, Customer Excellence | Sold | $120.4k4.9k shares |
| 2024-02-27 | Bramwell James EVP Sales, Customer Excellence | Sold | $151.9k6.2k 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, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 64.5m $1.6bn | Reduced -892.5k |
| Dodge & Cox 0.94% of their portfolio | 63.7m $1.6bn | Added +2.5m |
| T. Rowe Price Investment Management, Inc. 0.80% of their portfolio | 51.1m $1.3bn | Reduced -1.6m |
| BlackRock Inc. 0.03% of their portfolio | 42.8m $1.1bn | Reduced -3.1m |
| Boston Partners 0.87% of their portfolio | 28.6m $729.3m | Added +624.4k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 2.03% of their portfolio | 23.6m $602.9m | Reduced -785.6k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.58% of their portfolio | 21.5m $548.8m | Reduced -754.3k |
| JANUS HENDERSON GROUP PLC 0.20% of their portfolio | 14.3m $364.5m | Reduced -417.2k |
| New Mountain Capital, L.L.C. 22.74% of their portfolio | 14.0m $358.0m | Unchanged |
| STATE STREET CORP 0.02% of their portfolio | 14.0m $357.2m | Added +193.7k |
| Invesco Ltd. 0.06% of their portfolio | 10.8m $275.1m | Reduced -165.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 10.2m $261.0m | Added +371.1k |
| MORGAN STANLEY 0.01% of their portfolio | 9.3m $237.0m | Added +778.7k |
| Artemis Investment Management LLP 3.02% of their portfolio | 9.1m $233.1m | Added +1.2m |
| Durable Capital Partners LP 1.68% of their portfolio | 8.5m $217.3m | New |
| NORGES BANK 0.03% of their portfolio | 8.2m $209.5m | Added +1.3m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 7.7m $197.1m | Added +408.8k |
| BESSEMER GROUP INC 0.33% of their portfolio | 7.1m $181.5m | Added +297.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.16% of their portfolio | 6.4m $163.5m | Added +968.2k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 6.3m $161.9m | Added +1.2m |
| Clarkston Capital Partners, LLC 2.64% of their portfolio | 5.9m $149.6m | Added +7.6k |
| Pictet Asset Management Holding SA 0.16% of their portfolio | 5.8m $149.0m | Reduced -1.0m |
| Robeco Schweiz AG 2.55% of their portfolio | 5.7m $146.2m | Reduced -704.4k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.70% of their portfolio | 5.2m $134.1m | Reduced -174.7k |
| MILLENNIUM MANAGEMENT LLC 0.11% of their portfolio | 5.0m $128.4m | Reduced -5.2m |
| CCLA Investment Management 1.86% of their portfolio | 4.7m $120.8m | Added +1.5m |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 4.1m $104.4m | Added +107.7k |
| Legal & General Group Plc 0.03% of their portfolio | 4.0m $103.3m | Reduced -39.2k |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 3.8m $96.4m | Added +43.8k |
| TrinityBridge Ltd 3.51% of their portfolio | 3.8m $96.1m | Added +255 |
| Thrivent Financial for Lutherans 0.19% of their portfolio | 3.7m $94.6m | Added +37.8k |
| Holocene Advisors, LP 0.35% of their portfolio | 3.7m $94.6m | New |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.63% of their portfolio | 3.6m $93.2m | Reduced -69.8k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 3.6m $93.1m | Reduced -209.2k |
| BROWN BROTHERS HARRIMAN & CO 0.66% of their portfolio | 3.4m $85.7m | Reduced -239.5k |
| PARNASSUS INVESTMENTS, LLC 0.18% of their portfolio | 3.2m $82.2m | Reduced -3.7m |
| TD Asset Management Inc 0.07% of their portfolio | 3.1m $80.4m | Reduced -259.5k |
| SHAPIRO CAPITAL MANAGEMENT LLC 2.01% of their portfolio | 2.9m $74.5m | Reduced -188.5k |
| Standard Investments LLC 4.93% of their portfolio | 2.9m $73.9m | New |
| Clearbridge Investments, LLC 0.06% of their portfolio | 2.9m $73.9m | Added +26.0k |
| Public Sector Pension Investment Board 0.53% of their portfolio | 2.8m $72.6m | Added +114.2k |
| Woodline Partners LP 0.66% of their portfolio | 2.8m $71.6m | Reduced -1.1m |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.66% of their portfolio | 2.8m $70.5m | Added +1.7m |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.08% of their portfolio | 2.7m $69.1m | Added +1.0m |
| Avidity Partners Management LP 2.45% of their portfolio | 2.7m $68.9m | Added +573.2k |
| Balyasny Asset Management L.P. 0.18% of their portfolio | 2.7m $68.5m | Added +2.5m |
| DAVENPORT & Co LLC 0.42% of their portfolio | 2.6m $67.5m | Added +355.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 2.6m $67.3m | Added +104.4k |
| JANE STREET GROUP, LLC 0.08% of their portfolio | 2.5m $64.9m | Added +154.3k |
| JENNISON ASSOCIATES LLC 0.04% of their portfolio | 2.5m $63.9m | Added +1.3m |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.79% of their portfolio | 2.5m $63.6m | Added +602.7k |
| Point72 Asset Management, L.P. 0.17% of their portfolio | 2.3m $59.6m | Reduced -1.8m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.3m $58.6m | Reduced -318.4k |
| Swiss National Bank 0.04% of their portfolio | 2.0m $51.8m | Reduced -88.0k |
| Castle Hook Partners LP 1.83% of their portfolio | 2.0m $50.5m | Added +892.3k |
| Amundi 0.02% of their portfolio | 1.9m $46.0m | Reduced -424.9k |
| Artisan Partners Limited Partnership 0.07% of their portfolio | 1.9m $48.4m | Added +1.4m |
| Impax Asset Management Group plc 0.18% of their portfolio | 1.8m $46.7m | Reduced -19.6k |
| MARSHALL WACE, LLP 0.08% of their portfolio | 1.8m $46.7m | Added +1.1m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 1.8m $46.0m | Reduced -17.7m |
| Allianz Asset Management GmbH 0.08% of their portfolio | 1.8m $45.7m | Added +523.7k |
| COUNTRY TRUST BANK 1.08% of their portfolio | 1.6m $41.7m | Reduced -90.6k |
| Wolf Hill Capital Management, LP 2.72% of their portfolio | 1.6m $41.3m | Reduced -428.8k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 1.6m $40.9m | Added +1.5k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 1.6m $40.8m | Reduced -15.5k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 1.5m $38.9m | Added +80.8k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 1.4m $37.1m | Reduced -4.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.05% of their portfolio | 1.4m $36.2m | Reduced -1.3m |
| NEW SOUTH CAPITAL MANAGEMENT INC 1.51% of their portfolio | 1.4m $36.1m | Reduced -4.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.4m $35.5m | Reduced -463.5k |
| GREAT LAKES ADVISORS, LLC 0.30% of their portfolio | 1.4m $35.4m | Added +119.3k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 1.59% of their portfolio | 1.4m $35.4m | New |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 1.4m $35.2m | Reduced -100.5k |
| Magnetar Financial LLC 0.79% of their portfolio | 1.4m $35.2m | New |
| PFM Health Sciences, LP 1.71% of their portfolio | 1.3m $34.3m | Added +666.6k |
| CREDIT SUISSE AG/ 0.03% of their portfolio | 1.3m $33.3m | Reduced -9.6k |
| Russell Investments Group, Ltd. 0.05% of their portfolio | 1.3m $33.0m | Reduced -41.9k |
| Perpetual Ltd 0.32% of their portfolio | 1.3m $32.3m | Added +36.0k |
| MACQUARIE GROUP LTD 0.04% of their portfolio | 1.3m $32.2m | Added +731.9k |
| NATIXIS ADVISORS, LLC 0.07% of their portfolio | 1.2m $31.8m | Reduced -499.2k |
| UBS Group AG 0.01% of their portfolio | 1.2m $31.4m | Added +666.8k |
| California Public Employees Retirement System 0.02% of their portfolio | 1.2m $31.1m | Added +192.7k |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.27% of their portfolio | 1.2m $30.6m | Reduced -1.3m |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 1.2m $29.6m | Added +1.1m |
| Iron Triangle Partners LP 3.04% of their portfolio | 1.1m $29.4m | New |
| Alyeska Investment Group, L.P. 0.18% of their portfolio | 1.1m $29.2m | Added +17.8k |
| National Pension Service 0.03% of their portfolio | 1.1m $28.9m | Reduced -6.0k |
| RAYMOND JAMES & ASSOCIATES 0.02% of their portfolio | 1.1m $28.8m | Reduced -38.6k |
| READYSTATE ASSET MANAGEMENT LP 1.02% of their portfolio | 1.1m $28.6m | Added +528.6k |
| DUDLEY & SHANLEY, INC. 4.80% of their portfolio | 1.1m $28.4m | Added +12.4k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 1.1m $27.6m | Added +43.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 1.1m $27.3m | Added +5.2k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio | 1.0m $26.8m | Added +323.0k |
| CIBC Private Wealth Group LLC 0.05% of their portfolio | 1.0m $26.2m | Reduced -1.2k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 1.0m $26.4m | Added +890.9k |
| KBC Group NV 0.08% of their portfolio | 1.0m $26.1m | Added +973.2k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 967.1k $24.7m | Reduced -32.7k |
| MOORE CAPITAL MANAGEMENT, LP 0.50% of their portfolio | 950.0k $24.3m | Added +25.0k |
| FEDERATED HERMES, INC. 0.06% of their portfolio | 935.5k $23.9m | Added +307.3k |
| COMERICA BANK 0.10% of their portfolio | 915.0k $23.4m | Added +64.5k |