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Avantor, Inc.

AVTR
Exchange
NYSE
Industry
Laboratory Analytical Instruments
SEC CIK
0001722482

No open-market purchases or sales by Avantor, Inc. insiders were filed in the last 90 days; 460 institutions reported holding it in 13F filings for Q2 2026, worth $6.92B in total; superinvestors Greenhaven Associates and Southeastern Asset Management (Longleaf) hold it.

13F holders, Q1 2026

Institutional positions in Avantor, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
433
+20 vs. Q4 2025
Shares held
675.7M
+53.9M (+8.7%) vs. Q4 2025
Total value
$5.30B
−$1.85B (−25.8%) vs. Q4 2025
New holders
91
169 more added
Sold out
71
126 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AVTR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 433 institutions
Q1 2021: 415 institutionsQ2 2021: 440 institutionsQ3 2021: 476 institutionsQ4 2021: 497 institutionsQ1 2022: 481 institutionsQ2 2022: 484 institutionsQ3 2022: 440 institutionsQ4 2022: 446 institutionsQ1 2023: 467 institutionsQ2 2023: 443 institutionsQ3 2023: 439 institutionsQ4 2023: 472 institutionsQ1 2024: 497 institutionsQ2 2024: 515 institutionsQ3 2024: 520 institutionsQ4 2024: 493 institutionsQ1 2025: 485 institutionsQ2 2025: 506 institutionsQ3 2025: 466 institutionsQ4 2025: 421 institutionsQ1 2026: 433 institutionsQ2 2026: 460 institutions
Value heldQ1 2026: $5.30B
Q1 2021: $15.8BQ2 2021: $18.9BQ3 2021: $23.0BQ4 2021: $23.6BQ1 2022: $19.4BQ2 2022: $18.5BQ3 2022: $11.6BQ4 2022: $12.5BQ1 2023: $13.0BQ2 2023: $12.6BQ3 2023: $13.3BQ4 2023: $14.8BQ1 2024: $16.5BQ2 2024: $13.8BQ3 2024: $17.7BQ4 2024: $14.4BQ1 2025: $11.2BQ2 2025: $9.58BQ3 2025: $8.47BQ4 2025: $7.97BQ1 2026: $5.30BQ2 2026: $6.92B
Institutions holding AVTR and their total value by quarter
QuarterHoldersValue
Q2 2026460$6.92B
Q1 2026433$5.30B
Q4 2025421$7.97B
Q3 2025466$8.47B
Q2 2025506$9.58B
Q1 2025485$11.2B
Q4 2024493$14.4B
Q3 2024520$17.7B
Q2 2024515$13.8B
Q1 2024497$16.5B
Q4 2023472$14.8B
Q3 2023439$13.3B
Q2 2023443$12.6B
Q1 2023467$13.0B
Q4 2022446$12.5B
Q3 2022440$11.6B
Q2 2022484$18.5B
Q1 2022481$19.4B
Q4 2021497$23.6B
Q3 2021476$23.0B
Q2 2021440$18.9B
Q1 2021415$15.8B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Avantor, Inc.; share changes are against Q4 2025.

Institutions holding AVTR in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Clearstead Advisors, LLC0$00.00%−29−100.0%Sold out
Quest 10 Wealth Builders, Inc.0$00.00%−10−100.0%Sold out
HFM Investment Advisors, LLC0$00.00%−6−100.0%Sold out
Bravera Wealth0$00.00%−6−100.0%Sold out
Vanguard Group Inc––––Not filed
Norges Bank––––Not filed
Capitolis Liquid Global Markets LLC––––Not filed
Comerica Bank––––Not filed
CIBC World Markets Corp––––Not filed
CIBC Private Wealth Group, LLC––––Not filed
Global Retirement Partners, LLC––––Not filed
Ransom Advisory, Ltd––––Not filed