AVTR Institutional Ownership
Who owns Avantor, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 460 funds reported holding AVTR at Jun 30, 2026, together owning 103.3% of the company.
- ▲282 buying vs 177 selling
- ▲Held by funds +3.5 pts
- ▲Funds holding +26
- ▼Superinvestors: 1 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 460 | 434 | +6.0% |
| In funds' top 10 | 8 | 6 | +33.3% |
| 13F shares | 700M | 676M | +3.6% |
| Held by funds | 103.3% | 99.7% | +3.5 pts |
| New positions | 94 | 83 | +13.3% |
| Increased | 188 | 163 | +15.3% |
| Reduced | 111 | 126 | −11.9% |
| Sold out | 66 | 72 | −8.3% |
| Calls (shares) | 244K | 180K | +35.5% |
| Puts (shares) | 36K | 33K | +9.8% |
| Put/call ratio | 0.15 | 0.18 | −18.9% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in AVTR
All superinvestors →
Who owns AVTR
share of fund held shares- Index and passive funds31.4%
- Active managers and hedge funds58.5%
- Banks and brokers8.0%
- Pensions, insurers and other2.1%
The top 10 holders own 53.3% of all AVTR shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
120 funds changed their position- Wedge Capital Management L L P/ncNew+1.7M sh
- Mackenzie Financial CorpTrimmed−1.3M sh
- Assenagon Asset Management S.A.Trimmed−1M sh
- Simplify Asset Management Inc.New+966K sh
- Robeco Schweiz AGSold out−1.5M sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Dodge & Cox | 17.71% | 120M | $1.2B | +373K |
| 2 | BlackRock, Inc. | 10.37% | 70.3M | $696M | +4.6M |
| 3 | Vanguard Portfolio Management LLC | 4.63% | 31.3M | $310M | +67K |
| 4 | Vanguard Capital Management LLC | 4.55% | 30.8M | $305M | +197K |
| 5 | Greenhaven Associates Inc | 3.64% | 24.6M | $244M | +2M |
| 6 | State Street Corp | 3.18% | 21.6M | $214M | +852K |
| 7 | Dimensional Fund Advisors LP | 3.01% | 20.4M | $202M | +3.5M |
| 8 | Engine Capital Management, LP | 2.93% | 19.9M | $197M | +80K |
| 9 | Barrow Hanley Mewhinney & Strauss LLC | 2.91% | 19.7M | $195M | −2.6M |
| 10 | New Mountain Capital, L.L.C. | 2.07% | 14M | $139M | 0 |
- Marshall Wace, LLP+9.7M sh+$96M
- Vaughan Nelson Investment Management, L.P.+7.4M sh+$73.2M
- AQR Capital Management LLC+6.8M sh+$66.9M
- Norges Bank+6.1M sh+$60.3M
- Invesco Ltd.+5.8M sh+$57.5M
- Earnest Partners LLC+4.7M sh+$46.8M
- BlackRock, Inc.+4.6M sh+$45.3M
- Bank of America Corp /de/+3.9M sh+$38.8M
- Wellington Management Group LLP−24.2M sh−$190M
- T. Rowe Price Investment Management, Inc.−14.8M sh−$116M
- Jane Street Group, LLC−5M sh−$38.9M
- D. E. Shaw & Co., Inc.−3.5M sh−$35M
- Robeco Schweiz AG−2.7M sh−$27M
- Barrow Hanley Mewhinney & Strauss LLC−2.6M sh−$26M
- Eversept Partners, LP−3M sh−$23.3M
- Voya Investment Management LLC−2.3M sh−$22.4M
AVTR institutional ownership FAQ
Who owns the most AVTR stock?
In Q2 2026 13F filings the largest holder of AVTR was Dodge & Cox, followed by BlackRock, Inc. and Vanguard Portfolio Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of AVTR is owned by institutions?
Funds that file 13F reports held 103.3% of AVTR's shares at Jun 30, 2026, compared with 99.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying AVTR?
In Q2 2026, 282 funds bought AVTR (94 of them new positions) and 177 sold (66 sold out completely). Among well known investors, 1 added and 2 cut. Our fund sentiment for AVTR is bullish.
What is AVTR's institutional put/call ratio?
Funds reported $354K of AVTR puts against $2.4M of calls, a put/call ratio of 0.15 (0.18 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this AVTR ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.