Avantor Ownership | Who Owns Avantor?
Avantor Ownership Summary
Avantor is owned by 104.43% institutional investors, 1.35% insiders. Dodge & cox is the largest institutional shareholder, holding 17.23% of AVTR shares. Dodge & Cox Stock I is the top mutual fund, with 10.99% of its assets in Avantor shares.
AVTR Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Avantor | 104.43% | 1.35% | -5.78% |
| Sector | Basic Materials Stocks | 52.81% | 12.20% | 34.99% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Dodge & cox | 117.43M | 17.23% | $1.58B |
| Blackrock funding, inc. /de | 71.91M | 10.55% | $967.84M |
| Vanguard group | 63.97M | 9.40% | $1.35B |
| T. rowe price investment management | 56.50M | 8.29% | $760.50M |
| Blackrock | 44.01M | 6.49% | $932.96M |
| Barrow hanley mewhinney & strauss | 31.19M | 4.58% | $419.83M |
| State street | 23.31M | 3.43% | $491.09M |
| Janus henderson group | 18.14M | 2.67% | $382.13M |
| New mountain capital | 14.00M | 2.05% | $188.44M |
| Clarkston capital partners | 13.98M | 2.05% | $188.20M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| New mountain capital | 14.00M | 100.00% | $188.44M |
| Kinney asset management | 1.38M | 24.92% | $18.51M |
| Belfer management | 25.04K | 10.31% | $647.68K |
| Bancreek capital management, lp | 330.95K | 7.64% | $4.45M |
| Broyhill asset management | 364.22K | 4.45% | $4.90M |
| Wilson asset management () pty | 805.66K | 4.40% | $16.98M |
| Clarkston capital partners | 13.98M | 4.00% | $188.20M |
| Otter creek advisors | 327.74K | 3.13% | $4.41M |
| Stanley capital management | 1.32M | 2.99% | $17.75M |
| Close asset management | 4.65M | 2.76% | $98.00M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Dodge & cox | 117.43M | 0.89% | 17.17M |
| T. rowe price investment management | 56.50M | 0.48% | 14.53M |
| Norges bank | 6.76M | 0.02% | 6.76M |
| Massachusetts financial services co /ma/ | 5.86M | 0.03% | 5.86M |
| Millennium management | 5.31M | 0.05% | 5.31M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| 1832 asset management | 4.51M | 0.05% | -13.62M |
| Ccla investment management | - | - | -5.85M |
| Van lanschot kempen investment management | - | - | -5.51M |
| Canada pension plan investment board | 318.00K | 0.00% | -5.13M |
| Durable capital partners lp | - | - | -4.81M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 6.76M | 0.02% | 6.76M | $142.51M |
| Massachusetts financial services co /ma/ | 5.86M | 0.03% | 5.86M | $78.90M |
| Balyasny asset management | 3.19M | 0.06% | 3.19M | $42.87M |
| Loews | 2.15M | 0.24% | 2.15M | $28.94M |
| Readystate asset management lp | 2.01M | 0.83% | 2.01M | $27.05M |
Sold Out
| Holder | Change |
|---|---|
| Atticus wealth management | -1.00 |
| Tfo-tdc | -1.00 |
| Sjs investment consulting | -2.00 |
| Tfc financial management | -3.00 |
| Cape investment advisory | -5.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 516 | 2.79% | 711,723,160 | 4.21% | 104 | 1.04% | 300 | 14.94% | 143 | -15.38% |
| Mar 31, 2025 | 14 | -97.24% | 21,523,236 | -96.85% | 3 | 0.03% | 6 | -97.40% | 4 | -98.08% |
| Dec 31, 2024 | 496 | -8.66% | 682,494,306 | 0.86% | 100 | 1.01% | 222 | -22.65% | 203 | 20.83% |
| Sep 30, 2024 | 536 | 1.52% | 674,607,189 | 3.80% | 99 | 1.08% | 283 | 6.39% | 165 | -2.37% |
| Jun 30, 2024 | 521 | 3.17% | 648,606,763 | 1.96% | 95 | 1.08% | 264 | -2.58% | 164 | 3.14% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Dodge & Cox Stock I | 74.87M | 10.99% | 8.03M |
| iShares Core S&P Mid-Cap ETF | 22.21M | 3.26% | -39.93K |
| Vanguard US Total Market Shares ETF | 20.46M | 3.00% | -1.03M |
| Vanguard Total Stock Mkt Idx Inv | 20.36M | 2.99% | -486.06K |
| T. Rowe Price US Mid-Cap Growth Equity | 19.48M | 2.86% | -485.10K |
| T. Rowe Price Mid-Cap Growth | 19.48M | 2.86% | -14.70K |
| Vanguard Small Cap Index | 15.71M | 2.30% | -105.20K |
| UBS: Global Equity | 15.16M | 2.23% | - |
| T. Rowe Price Capital Appreciation | 12.06M | 1.77% | -5.40M |
| Vanguard Small Cap Value Index Inv | 10.08M | 1.48% | -8.89K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 21, 2025 | SUMME GREGORY L | - | Buy | $1.26M |
| Aug 05, 2025 | Eck Steven W | SVP & Chief Accounting Officer | Sell | $39.59K |
| May 23, 2025 | SUMME GREGORY L | - | Buy | $375.00K |
| May 22, 2025 | SUMME GREGORY L | - | Buy | $253.00K |
| May 07, 2025 | SUMME GREGORY L | - | Buy | $300.00K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | 1 | 1 |
| 2025 Q2 | 7 | - |
| 2025 Q1 | - | 4 |
| 2024 Q4 | - | - |
| 2024 Q3 | - | 3 |
AVTR Ownership FAQ
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