Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AVTR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | DODGE & COX | 119.6M | $938.0M | +2.2% | 17.524% | 0.52% |
| 2 | BlackRock, Inc. | 65.7M | $515.1M | +10.3% | 9.623% | 0.01% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 31.3M | $245.2M | β | 4.581% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 30.6M | $240.0M | β | 4.483% | 0.01% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | 24.2M | $189.9M | +3.4% | 3.548% | 0.04% |
| 6 | GREENHAVEN ASSOCIATES INC | 22.6M | $177.1M | +10.2% | 3.309% | 2.92% |
| 7 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 22.4M | $175.3M | -32.8% | 3.275% | 0.57% |
| 8 | STATE STREET CORP | 20.7M | $162.5M | +2.5% | 3.035% | 0.01% |
| 9 | Engine Capital Management, LP | 19.8M | $155.1M | +65.8% | 2.897% | 18.72% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 16.9M | $132.4M | +15.7% | 2.474% | 0.03% |
| 11 | New Mountain Capital, L.L.C. | 14.0M | $109.8M | 0.0% | 2.050% | 100.00% |
| 12 | D. E. Shaw & Co., Inc. | 13.1M | $102.8M | +110.9% | 1.920% | 0.10% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 12.9M | $101.1M | +7.6% | 1.888% | 0.01% |
| 14 | LONDON CO OF VIRGINIA | 10.9M | $85.1M | -9.1% | 1.589% | 0.52% |
| 15 | FULLER & THALER ASSET MANAGEMENT, INC. | 10.6M | $83.4M | +555.3% | 1.557% | 0.28% |
| 16 | Clarkston Capital Partners, LLC | 8.6M | $67.7M | -42.9% | 1.264% | 5.16% |
| 17 | First Pacific Advisors, LP | 8.1M | $63.4M | +103.8% | 1.185% | 0.89% |
| 18 | Invesco Ltd. | 8.1M | $63.3M | -53.0% | 1.183% | 0.01% |
| 19 | FMR LLC | 7.6M | $59.7M | -0.8% | 1.115% | 0.00% |
| 20 | BANK OF AMERICA CORP /DE/ | 7.1M | $55.4M | +24.3% | 1.035% | 0.00% |
| 21 | MORGAN STANLEY | 6.1M | $47.8M | -65.1% | 0.893% | 0.00% |
| 22 | EARNEST PARTNERS LLC | 6.0M | $47.2M | -0.1% | 0.882% | 0.19% |
| 23 | NORTHERN TRUST CORP | 5.5M | $42.8M | +2.8% | 0.799% | 0.01% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 5.4M | $42.4M | +10.9% | 0.792% | 0.01% |
| 25 | SEI INVESTMENTS CO | 5.3M | $41.5M | +0.9% | 0.774% | 0.04% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in AVTR β a direct measure of their conviction.
Filings activity in AVTR during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new AVTR position in Q1 2026
Institutions that fully closed their AVTR position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 425 | +3.9% | 79.17% | 38.42 pp | $5.08B | 33% |
| Q4 2025 | 409 | 8.5% | 117.59% | 5.57 pp | $7.54B | 4.5% |
| Q3 2025 | 447 | 8.8% | 123.16% | 8.03 pp | $7.90B | 6.1% |
| Q2 2025 | 490 | +3.6% | 131.19% | 32.72 pp | $8.41B | 20% |
| Q1 2025 | 473 | +0.0% | 163.91% | 32.00 pp | $10.51B | 16% |
| Q4 2024 | 473 | 3.3% | 195.91% | 4.08 pp | $12.56B | 15% |
| Q3 2024 | 489 | 0.8% | 199.99% | +19.65 pp | $14.70B | +27% |
| Q2 2024 | 493 | β | 180.34% | β | $11.56B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AVTR stock.
Based on Q1 2026 13F filings, institutional ownership of Avantor, Inc. stands at 79.2%, held across 425 reporting institutions.
DODGE & COX is the largest reported institutional holder of AVTR, with approximately 119,648,329 shares worth $0.94B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of AVTR, including GREENHAVEN ASSOCIATES INC.
Our composite Smart Money Score for AVTR is 40 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
94 institutions opened new positions in AVTR during Q1 2026, while 78 fully exited. 69 added to existing positions and 261 trimmed.
AVTR institutional ownership fell by 38.42 percentage points quarter-over-quarter, with a net change of +16 holders.
The top 10 institutions account for 57.7% of all reported 13F value in AVTR, and the top 25 account for 77.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Avantor, Inc. (AVTR) Institutional Ownership