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Avantor, Inc. hedge fund holdings

AVTRNYSE
$15.34+0.31 (+2.06%)as of Oct 2, 2026

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

AVTR · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+11.4%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 2025232146$1.56B$1.36B471Aug 14, 2025
Q3 2025165241$1.22B$1.47B435Nov 14, 2025
Q4 2025133221$1.22B$763M398Feb 14, 2026
Q1 2026190153$720M$925M405May 15, 2026
Q2 2026221127$890M$748M430Aug 14, 2026

Quarterly action breakdown

Q2 2026
430 filers
New position
78
$64.7M+6.54M sh
Increased
143
$825M+83.4M sh
Reduced
72
-$193M-19.5M sh
Out / sold
55
-$555M-56.1M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
Wellington Management Group LLPSell 100%-$190M$00.00%Aug 14, 2026
T. Rowe Price Investment Management, Inc.Sell 100%-$116M$00.00%Aug 14, 2026
Earnest Partners LLCAdded 78.41%+$46.8M$106M0.38%Aug 13, 2026
Freestone Grove Partners LPAdded 104.75%+$28.9M$56.6M0.36%Aug 14, 2026
Robeco Schweiz AGReduce 65.01%-$27M$14.5M0.23%Jul 28, 2026
Gendell Jeffrey LAdded 54.71%+$26.6M$75.3M0.67%Aug 14, 2026
Natixis Advisors, LLCAdded 94.62%+$23.8M$49M0.06%Aug 14, 2026
Eversept Partners, LPSell 100%-$23.3M$00.00%Aug 14, 2026
Western Standard LLCNew Buy+$20.9M$20.9M7.07%Aug 10, 2026
Greenhaven Associates IncAdded 9.04%+$20.2M$244M2.82%Jul 28, 2026
Clarkston Capital Partners, LLCReduce 21.32%-$18.2M$67.2M5.68%Aug 11, 2026
Voss Capital, LPReduce 40.41%-$17.8M$26.2M1.22%Aug 14, 2026
Frontier Capital Management Co LLCAdded 73.27%+$14.7M$34.7M0.32%Aug 14, 2026
Quantinno Capital Management LPAdded 108.88%+$12.6M$24.2M0.03%Aug 13, 2026
Southeastern Asset Management IncAdded 34.24%+$11.9M$46.8M2.44%Aug 14, 2026
Gotham Asset Management, LLCAdded 89.47%+$11.8M$24.9M0.06%Aug 14, 2026
Shapiro Capital Management LLCAdded 211.86%+$11.2M$16.6M1.00%Aug 6, 2026
Olstein Capital Management, L.P.Sell 100%-$9.49M$0Not reportedJul 7, 2026
CastleKnight Management LPNew Buy+$7.44M$7.44M0.10%Aug 14, 2026
Kettle Hill Capital Management, LLCAdded 64.90%+$7.25M$18.4M4.53%Aug 14, 2026
Stanley Capital Management, LLCSell 100%-$7.2M$00.00%Aug 14, 2026
Diamond Hill Capital Management, LLC (Investment Advisor)Reduce 40.78%-$7.13M$10.4M0.08%Aug 6, 2026
Easterly Investment Partners LLCNew Buy+$6.84M$6.84M0.35%Jul 23, 2026
Melqart Asset Management (UK) LtdNew Buy+$6.29M$6.29M0.60%Aug 14, 2026
Readystate Asset Management LPSell 100%-$6.18M$00.00%Aug 14, 2026
BNP PARIBAS ASSET MANAGEMENT Holding S.A.Added 153.05%+$4.58M$7.57M0.01%Aug 13, 2026
Taikang Asset Management (Hong Kong) Co LtdReduce 42.58%-$4.3M$5.79M0.53%Aug 12, 2026
Dodge & CoxAdded 0.31%+$3.69M$1.19B0.62%Aug 13, 2026
London Co of VirginiaReduce 3.38%-$3.63M$104M0.59%Aug 14, 2026
Private Management Group IncAdded 13.33%+$3.61M$30.7M0.81%Jul 31, 2026
Capricorn Fund Managers LtdNew Buy+$2.98M$2.98M0.23%Jul 24, 2026
Worldquant Millennium Advisors LLCReduce 72.12%-$2.61M$1.01M0.00%Aug 14, 2026
Brickwood Asset Management LLPAdded 6.01%+$2.58M$45.5M32.70%Aug 10, 2026
King Luther Capital Management CorpAdded 50.07%+$2.5M$7.5M0.03%Aug 10, 2026
Cna Financial CorpSell 100%-$2.35M$00.00%Aug 14, 2026
Loomis Sayles & Co L PAdded 18.70%+$2.3M$14.6M0.02%Aug 14, 2026
Sector Gamma AsAdded 30.30%+$2.09M$8.97M1.95%Aug 12, 2026
Loews CorpAdded 10.00%+$1.98M$21.8M0.17%Aug 14, 2026
ARGA Investment Management, LPNew Buy+$1.85M$1.85M0.05%Jul 31, 2026
Longaeva Partners L.P.New Buy+$1.82M$1.82M0.04%Aug 14, 2026
Bridgewater Associates, LPAdded 134.94%+$1.71M$2.98M0.01%Aug 14, 2026
Silvercrest Asset Management Group LLCReduce 84.95%-$1.66M$294K0.00%Aug 14, 2026
HighVista Strategies LLCSell 100%-$1.46M$00.00%Aug 14, 2026
Canada Pension Plan Investment BoardReduce 37.90%-$1.46M$2.39M0.00%Aug 14, 2026
ING Groep NVSell 100%-$1.35M$00.00%Aug 13, 2026
Arrowpoint Investment Partners (Singapore) Pte. Ltd.New Buy+$1.3M$1.3M0.28%Aug 13, 2026
Retirement Systems of AlabamaReduce 15.55%-$1.29M$6.99M0.02%Jul 28, 2026
Axq Capital, LPReduce 79.95%-$1.27M$319K0.03%Aug 6, 2026
Lecap Asset Management LtdNew Buy+$1.19M$1.19M0.51%Jul 30, 2026
Edgestream Partners, L.P.Reduce 28.28%-$1.17M$2.97M0.09%Aug 11, 2026
Harbor Capital Advisors, Inc.Added 254.92%+$1.15M$1.61M0.11%Aug 7, 2026
Oak Thistle LLCSell 100%-$1.13M$00.00%Jul 21, 2026
First Pacific Advisors, LPAdded 1.26%+$1.01M$81.1M1.00%Aug 14, 2026
New South Capital Management IncReduce 5.80%-$898K$14.6M0.64%Aug 10, 2026
Handelsbanken Fonder ABAdded 41.16%+$804K$2.76M0.01%Jul 10, 2026
Engine Capital Management, LPAdded 0.40%+$792K$197M19.13%Aug 14, 2026
Maverick Capital LtdSell 100%-$790K$00.00%Aug 14, 2026
Thrivent Financial for LutheransAdded 18.92%+$783K$4.92M0.01%Aug 14, 2026
AlphaGrep UK LtdReduce 81.47%-$686K$156K0.05%Aug 14, 2026
Tran Capital Management, L.P.Sell 100%-$681K$00.00%Jul 15, 2026
Advisors Capital Management, LLCAdded 17.29%+$644K$4.37M0.05%Aug 11, 2026
Highland Capital Management, LLCNew Buy+$638K$638K0.03%Jul 21, 2026
Summit Trail Advisors, LLCAdded 75.80%+$624K$1.45M0.02%Aug 11, 2026
ABS Direct Equity Fund LLCSell 100%-$588K$00.00%Aug 13, 2026
Nano Cap New Millennium Growth Fund L PNew Buy+$495K$495K0.38%Aug 14, 2026
Brant Point Investment Management LLCNew Buy+$495K$495K0.06%Aug 13, 2026
Rock Creek Group LLCReduce 50.00%-$495K$495K0.05%Aug 3, 2026
ADAR1 Capital Management, LLCAdded 62.50%+$495K$1.29M0.06%Aug 14, 2026
Skba Capital Management LLCSell 100%-$494K$00.00%Aug 11, 2026
Sivia Capital Partners, LLCNew Buy+$489K$489K0.06%Jul 23, 2026
North Star Asset Management IncReduce 23.00%-$411K$1.37M0.05%Aug 18, 2026
Vestcor IncSell 100%-$395K$00.00%Aug 11, 2026
Diversify Advisory Services, LLCNew Buy+$394K$394K0.01%Aug 10, 2026
Massachusetts Financial Services CoReduce 44.51%-$365K$455K0.00%Aug 3, 2026
Tidal Investments LLCSell 100%-$364K$00.00%Aug 13, 2026
Vise Technologies, Inc.Added 93.71%+$354K$731K0.01%Aug 11, 2026
South Dakota Investment CouncilSell 100%-$353K$00.00%Aug 11, 2026
State of Alaska, Department of RevenueAdded 52.46%+$350K$1.02M0.01%Jul 20, 2026
IMC-Chicago, LLCReduce 64.75%-$348K$189K0.00%Aug 6, 2026
Kera Capital Partners, Inc.Added 179.36%+$330K$514K0.05%Aug 14, 2026
Atria Investments, IncNew Buy+$314K$314K0.00%Jul 28, 2026
SummitTX Capital, L.P.New Buy+$310K$310K0.01%Aug 14, 2026
Numerai GP LLCSell 100%-$307K$00.00%Aug 14, 2026
&PartnersAdded 72.75%+$306K$727K0.00%Aug 14, 2026
Calamos Wealth Management LLCSell 100%-$301K$00.00%Jul 31, 2026
Evergreen Capital Management LLCAdded 162.82%+$300K$484K0.01%Jul 23, 2026
Pinnacle Financial Partners, Inc.New Buy+$290K$290K0.00%Aug 14, 2026
Frec Markets, Inc.New Buy+$289K$289K0.03%Aug 13, 2026
Praxis Investment Management IncNew Buy+$276K$276K0.01%Aug 4, 2026
Lido Advisors, LLCNew Buy+$273K$273K0.00%Aug 7, 2026
Bridgefront Capital, LLCSell 100%-$271K$00.00%Aug 14, 2026
Swiss Life Asset Management LtdAdded 64.16%+$267K$684K0.00%Jul 29, 2026
Regions Financial CorpAdded 40.86%+$265K$914K0.01%Aug 10, 2026
Choreo, LLCAdded 41.53%+$250K$851K0.01%Aug 4, 2026
Yacktman Asset Management LPAdded 0.53%+$248K$47.2M0.58%Aug 11, 2026
Manhattan West Asset Management, LLCReduce 9.25%-$226K$2.22M0.37%Aug 11, 2026
Baker Avenue Asset Management, LPNew Buy+$218K$218K0.00%Jul 28, 2026
Ethic Inc.New Buy+$213K$213K0.00%Jul 29, 2026
Lightrock Netherlands B.V.Reduce 1.83%-$201K$10.8M2.14%Aug 10, 2026
Greenleaf TrustNew Buy+$199K$199K0.00%Jul 21, 2026

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