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 | Healthcare Stocks | 488.30% | 11.08% | -399.38% |
| Industry | Medical Instruments & Supplies Stocks | 57.81% | 14.56% | 27.62% |
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 | 22.18M | 3.25% | - |
| 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 | 19.45M | 2.85% | -35.60K |
| 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 Q4 | - | - |
| 2025 Q3 | 1 | 1 |
| 2025 Q2 | 7 | - |
| 2025 Q1 | - | 4 |
| 2024 Q4 | - | - |
AVTR Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools