# Avantor, Inc. COM

Avantor, Inc. COM is a security (CUSIP 05352A100) tracked across SEC portfolio filings. 472 institutional managers reported $5.5B on Form 13F as of 2026-06-30; 48 registered fund positions totaling $722.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: Avantor, Inc.
- Class: COM
- CUSIP: 05352A100
- Asset category: EC
- 13F holders: 472
- 13F value: $5.5B
- 13F period: 2026-06-30
- N-PORT fund positions: 48
- N-PORT value: $722.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 472 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Dodge & Cox](https://search.stillhousedata.com/firm/104596) | San Francisco, CA | $938.0M | 119,648,329 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $743.8M | 64,904,889 |
| BlackRock, Inc. | New York, NY | $515.1M | 65,703,554 |
| GREENHAVEN ASSOCIATES INC | Purchase, NY | $243.9M | 24,637,310 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $189.9M | 24,224,156 |
| [BARROW HANLEY MEWHINNEY & STRAUSS LLC](https://search.stillhousedata.com/firm/105519) | DALLAS, TX | $175.3M | 22,358,399 |
| STATE STREET CORP | BOSTON, MA | $162.5M | 20,721,079 |
| [Engine Capital Management, LP](https://search.stillhousedata.com/firm/168315) | NEW YORK, NY | $155.1M | 19,780,830 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $132.4M | 16,894,649 |
| [New Mountain Capital, L.L.C.](https://search.stillhousedata.com/firm/161394) | New York, NY | $109.8M | 14,000,000 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $108.4M | 4,966,462 |
| D. E. Shaw & Co., Inc. | New York, NY | $102.8M | 13,110,674 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $101.1M | 12,891,421 |
| [LONDON CO OF VIRGINIA](https://search.stillhousedata.com/firm/106654) | RICHMOND, VA | $85.1M | 10,852,257 |
| FULLER & THALER ASSET MANAGEMENT, INC. | San Mateo, CA | $83.4M | 10,632,112 |

## Top fund holders (N-PORT)

_Showing 15 of 48 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD HEALTH CARE FUND](https://search.stillhousedata.com/fund/S000002922) | VANGUARD SPECIALIZED FUNDS | $165.9M | 45.01% |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $161.2M | 66.57% |
| [Dodge & Cox Global Stock Fund](https://search.stillhousedata.com/fund/S000022057) | Dodge & Cox Funds | $121.6M | 101.30% |
| [Undiscovered Managers Behavioral Value Fund](https://search.stillhousedata.com/fund/S000004186) | UNDISCOVERED MANAGERS FUNDS | $68.0M | 78.73% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $59.7M | 7.32% |
| [T. Rowe Price Mid-Cap Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002102) | T. ROWE PRICE MID-CAP GROWTH FUND, INC. | $53.3M | 23.65% |
| [Invesco Small Cap Value Fund](https://search.stillhousedata.com/fund/S000027837) | AIM Sector Funds (Invesco Sector Funds) | $27.6M | 25.71% |
| [BlackRock Large Cap Focus Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002321) | BlackRock Large Cap Focus Value Fund, Inc. | $20.4M | 112.32% |
| [BlackRock Mid-Cap Value Fund](https://search.stillhousedata.com/fund/S000002541) | BlackRock Mid-Cap Value Series, Inc. | $11.0M | 104.73% |
| [Royce Small-Cap Total Return Fund](https://search.stillhousedata.com/fund/S000009510) | ROYCE FUND | $5.2M | 61.20% |
| [UBS U.S. EQUITY ALPHA RELATIONSHIP FUND](https://search.stillhousedata.com/fund/S000003186) | UBS RELATIONSHIP FUNDS | $4.6M | 148.91% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $4.4M | 17.48% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $4.4M | 2.65% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $3.1M | 0.86% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $3.0M | 0.51% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/05352A100.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.