Ranked by reported Q2 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 | 120.0M | $1.19B | +0.3% | 17.745% | 0.62% |
| 2 | BlackRock, Inc. | 70.3M | $695.8M | +7.0% | 10.391% | 0.01% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 31.3M | $310.3M | +0.2% | 4.634% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 30.8M | $304.9M | +0.6% | 4.554% | 0.01% |
| 5 | GREENHAVEN ASSOCIATES INC | 24.6M | $243.9M | +9.0% | 3.643% | 2.82% |
| 6 | STATE STREET CORP | 21.6M | $213.6M | +4.1% | 3.190% | 0.00% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 20.4M | $202.1M | +20.8% | 3.018% | 0.04% |
| 8 | Engine Capital Management, LP | 19.9M | $196.6M | +0.4% | 2.936% | 19.13% |
| 9 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 19.7M | $195.4M | -11.7% | 2.918% | 0.59% |
| 10 | New Mountain Capital, L.L.C. | 14.0M | $138.6M | 0.0% | 2.070% | 100.00% |
| 11 | Invesco Ltd. | 13.9M | $137.5M | +72.0% | 2.053% | 0.01% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 13.2M | $130.5M | +2.2% | 1.949% | 0.01% |
| 13 | MARSHALL WACE, LLP | 13.1M | $130.0M | +281.9% | 1.941% | 0.10% |
| 14 | AQR CAPITAL MANAGEMENT LLC | 11.6M | $115.1M | +138.9% | 1.719% | 0.04% |
| 15 | BANK OF AMERICA CORP /DE/ | 11.0M | $108.8M | +55.5% | 1.625% | 0.01% |
| 16 | EARNEST PARTNERS LLC | 10.7M | $106.4M | +78.4% | 1.589% | 0.38% |
| 17 | LONDON CO OF VIRGINIA | 10.5M | $103.8M | -3.4% | 1.550% | 0.59% |
| 18 | FULLER & THALER ASSET MANAGEMENT, INC. | 10.3M | $101.5M | -3.5% | 1.516% | 0.28% |
| 19 | D. E. Shaw & Co., Inc. | 9.6M | $94.8M | -27.0% | 1.415% | 0.05% |
| 20 | First Pacific Advisors, LP | 8.2M | $81.1M | +1.3% | 1.211% | 1.00% |
| 21 | SEI INVESTMENTS CO | 7.9M | $78.7M | +50.3% | 1.175% | 0.07% |
| 22 | FMR LLC | 7.8M | $77.7M | +3.1% | 1.160% | 0.00% |
| 23 | GENDELL JEFFREY L | 7.6M | $75.3M | +54.7% | 1.125% | 0.67% |
| 24 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 7.4M | $73.2M | β | 1.093% | 0.65% |
| 25 | Clarkston Capital Partners, LLC | 6.8M | $67.2M | -21.3% | 1.004% | 5.68% |
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 Q2 2026, grouped by how each filer changed its position.
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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 460 | +7.2% | 103.47% | +2.21 pp | $6.84B | +32% |
| Q1 2026 | 429 | +3.6% | 101.26% | 0.51 pp | $5.20B | 31% |
| Q4 2025 | 414 | 8.6% | 101.77% | +1.64 pp | $7.56B | 4.4% |
| Q3 2025 | 453 | 7.6% | 100.13% | 4.10 pp | $7.91B | 6.0% |
| Q2 2025 | 490 | +3.6% | 104.23% | +3.26 pp | $8.41B | 20% |
| Q1 2025 | 473 | +0.0% | 100.97% | +0.84 pp | $10.51B | 16% |
| Q4 2024 | 473 | 3.3% | 100.13% | +0.63 pp | $12.56B | 15% |
| Q3 2024 | 489 | β | 99.50% | β | $14.70B | 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 Q2 2026 13F filings, institutional ownership of Avantor, Inc. stands at 103.5%, held across 460 reporting institutions.
DODGE & COX is the largest reported institutional holder of AVTR, with approximately 120,020,974 shares worth $1.19B as of Q2 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 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
92 institutions opened new positions in AVTR during Q2 2026, while 63 fully exited. 309 added to existing positions and 47 trimmed.
AVTR institutional ownership rose by 2.21 percentage points quarter-over-quarter, with a net change of +31 holders.
The top 10 institutions account for 53.9% of all reported 13F value in AVTR, and the top 25 account for 75.6%.
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