Avantor

AVTR • NYSE

Avantor is a chemicals - specialty company in the basic materials sector on NYSE, led by Emmanuel Ligner, with a market cap of $7.6B. As of Q3 2025, 99% of shares are held by 449 institutional investors, with DODGE & COX as the largest holder at 17.27%.

President and Chief Executive OfficerEmmanuel Ligner

Market Cap$7.6B

Chemicals - Specialty

Basic Materials

Employees14.5K

Websiteavantorsciences.com

Country

United States of America

Overview

Overview of institutional ownership in AVTR as of Q3 2025 with a market cap of $8.5B

All Institutions

Institutions: 449
Value Held: $8.5B
Shares Held: 678.3M
Avg Position: $18.8M
Median Position: $587.2K

Hedge Funds

Hedge Funds: 53
Value Held: $694.8M
Shares Held: 55.7M
Avg Position: $13.1M
Median Position: $2.1M

Ownership Breakdown

Institutional (non-HF)

91.3%

$7.8B

Hedge Funds

8.17%

$694.8M

Retail & Other

0.533%

$45.4M

Based on market cap of $8.5B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in AVTR as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
DODGE & COX Long Only Manager	Dana Morton Emery CEO	$1.5B 0.79% of portfolio	17.27% 117.7M shares	Q3 2023 Held for 2y 2m	$185.33B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$823.5M 0.01% of portfolio	9.68% 66.0M shares	Q2 2019 Held for 6y 5m	$6.69T
B BlackRock, Inc. Institution	-	$757.7M 0.01% of portfolio	8.91% 60.7M shares	Q2 2019 Held for 6y 5m	$5.67T
BARROW HANLEY MEWHINNEY & STRAUSS LLC Long Only Manager	Cory Lawrence Martin CEO	$431.2M 1.37% of portfolio	5.07% 34.5M shares	Q1 2023 Held for 2y 8m	$31.4B
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$410.9M 0.25% of portfolio	4.83% 32.9M shares	Q3 2022 Held for 3y 2m	$161.58B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$254.2M 0.01% of portfolio	2.99% 20.4M shares	Q2 2019 Held for 6y 5m	$2.88T
Engine Capital Management, LLC Hedge Fund•Event Driven	Marc Stephen Diagonale CFO	$246.1M 29.22% of portfolio	2.89% 19.7M shares	Q2 2025 Held for 5 months	$842.2M
G GREENHAVEN ASSOCIATES INC Long Only Manager	Edgar Wachenheim Chairman	$228.5M 4.32% of portfolio	2.69% 18.3M shares	Q3 2025 Held for 2 months	$5.3B
Invesco Ltd. ETF Provider	Brian Christopher Hartigan CEO	$200.3M 0.03% of portfolio	2.35% 16.1M shares	Q2 2019 Held for 6y 5m	$633.08B
Clarkston Capital Partners LLC Long Only Manager	Jeffrey Anthony Hakala CEO	$187.5M 4.04% of portfolio	2.20% 15.0M shares	Q1 2023 Held for 2y 8m	$4.6B

Net Capital Flow

Institutional buying and selling activity for AVTR in Q3 2025

Traded: +$105.5M
Buyers: 230
Sellers: 288
Total Bought: +$1.3B
Total Sold: −$1.2B
Avg Position: $15.1M

Biggest Buyers

Institution	Net Bought	Current Position
G GREENHAVEN ASSOCIATES INC Long Only Manager	+$228.5M +18.3M shares	$228.5M 18.3M shares
Engine Capital Management, LLC Hedge Fund•Event Driven	+$177.4M +14.2M shares	$246.1M 19.7M shares
LONDON CO OF VIRGINIA Digital Asset Manager	+$159.7M +12.8M shares	$159.7M 12.8M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$64.7M +5.2M shares	$99.5M 8.0M shares
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	+$64.3M +5.1M shares	$64.3M 5.1M shares
V Voss Capital LLC Institution	+$50.9M +4.1M shares	$56.5M 4.5M shares
Holocene Advisors, LP Hedge Fund•Long/Short	+$50.4M +4.0M shares	$68.6M 5.5M shares
First Pacific Advisors, LLC Long Only Manager	+$49.9M +4.0M shares	$50.8M 4.1M shares
C CI Private Wealth, LLC RIA/Wealth	+$43.2M +3.5M shares	$43.8M 3.5M shares
BARROW HANLEY MEWHINNEY & STRAUSS LLC Long Only Manager	+$41.9M +3.4M shares	$431.2M 34.5M shares

Biggest Sellers

Institution	Net Sold	Current Position
T T. Rowe Price Investment Management, Inc. Insurance Manager	−$294.2M −23.6M shares	$410.9M 32.9M shares
B BlackRock, Inc. Institution	−$139.6M −11.2M shares	$757.7M 60.7M shares
G GCIC Ltd. Institution	−$60.7M −4.5M shares	Sold Off 0 shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$50.9M −4.1M shares	$29.7M 2.4M shares
M MANUFACTURERES LIFE INSURANCE CO Institution	−$48.8M −3.9M shares	$149.8M 12.0M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$42.9M −3.2M shares	Sold Off 0 shares
STATE STREET CORP Institution	−$38.9M −3.1M shares	$254.2M 20.4M shares
F Freestone Grove Partners LP Hedge Fund•Multi-Strategy	−$32.9M −2.4M shares	Sold Off 0 shares
Clearbridge Investments, LLC Long Only Manager	−$29.6M −2.2M shares	Sold Off 0 shares
Woodline Partners LP Hedge Fund•Long/Short	−$26.7M −2.1M shares	$20.3M 1.6M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited AVTR in Q3 2025

New Positions: 38
New Value: $476.9M
Exited Positions: 111
Exited Value: $353.9M

New Positions

Institution	Position Value
G GREENHAVEN ASSOCIATES INC Long Only Manager	$228.5M 18.3M shares
LONDON CO OF VIRGINIA Digital Asset Manager	$159.7M 12.8M shares
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	$64.3M 5.1M shares
T Taikang Asset Management Co Ltd Institution	$3.9M 314.9K shares
Phocas Financial Corp. Long Only Manager	$3.5M 280.5K shares
DEAN INVESTMENT ASSOCIATES, LLC Long Only Manager	$2.3M 180.4K shares
P Point72 Asia Pte. Ltd. Institution	$2.2M 180.2K shares
HighVista Strategies LLC Fund of Funds	$2.2M 172.4K shares
A ABS Direct Equity Fund LLC Institution	$1.2M 100.0K shares
Dean Capital Management Long Only Manager	$1.2M 92.3K shares

Exited Positions

Institution	Previous Position
G GCIC Ltd. Institution	$60.7M 4.5M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$42.9M 3.2M shares
F Freestone Grove Partners LP Hedge Fund•Multi-Strategy	$32.9M 2.4M shares
Clearbridge Investments, LLC Long Only Manager	$29.6M 2.2M shares
BOONE CAPITAL MANAGEMENT LLC Hedge Fund•Long/Short	$22.8M 1.7M shares
CNA FINANCIAL CORP Private Equity	$15.5M 1.2M shares
N Nearwater Capital Markets, Ltd Institution	$13.5M 1.0M shares
Arvin Capital Management LP Hedge Fund•Long/Short	$13.2M 983.1K shares
I Impax Asset Management Group plc Long Only Manager	$13.0M 964.4K shares
W WILSON ASSET MANAGEMENT PTY LTD Institution	$10.8M 805.7K shares

Options Activity

Institutions with the largest Call and Put options positions in AVTR as of Q3 2025

Call Positions: 15
Call Value: $13.9M
Put Positions: 17
Put Value: $13.8M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$4.3M 3.4K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$3.0M 2.4K contracts
J JANE STREET GROUP, LLC Institution	$2.2M 1.8K contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$1.0M 827.0 contracts
GOLDMAN SACHS GROUP INC Institution	$998.4K 800.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$808.7K 648.0 contracts
W WOLVERINE TRADING, LLC Institution	$558.8K 472.0 contracts
LOEWS CORP Institution	$374.4K 300.0 contracts
Walleye Trading LLC RIA/Wealth	$312.0K 250.0 contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$229.6K 184.0 contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$4.4M 3.5K contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$2.2M 1.8K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$2.1M 1.7K contracts
GOLDMAN SACHS GROUP INC Institution	$998.4K 800.0 contracts
Caption Management, LLC Hedge Fund•Long/Short	$998.4K 800.0 contracts
J JANE STREET GROUP, LLC Institution	$917.3K 735.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$806.2K 646.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$530.4K 425.0 contracts
W WOLVERINE TRADING, LLC Institution	$349.3K 295.0 contracts
S SIG BROKERAGE, LP Institution	$249.6K 200.0 contracts

Most Committed Institutions

Institutions with AVTR as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
New Mountain Capital, L.L.C. Private Equity	Steven Bruce Klinsky CEO	100.00% $174.7M	2.05% 14.0M shares	Q3 2022 Held for 3y 2m	$174.7M
K KINNEY ASSET MANAGEMENT, LLC Hedge Fund•Value	Peter Anthony Kinney Managing Partner	34.31% $23.0M	0.27% 1.8M shares	Q2 2025 Held for 5 months	$67.1M
Engine Capital Management, LLC Hedge Fund•Event Driven	Marc Stephen Diagonale CFO	29.22% $246.1M	2.89% 19.7M shares	Q2 2025 Held for 5 months	$842.2M
B Bancreek Capital Management, LP Hedge Fund•Value	Andrew Loren Skatoff CIO	8.02% $3.8M	0.04% 306.3K shares	Q4 2021 Held for 3y 11m	$47.7M
Pacific Capital Partners Ltd RIA/Wealth	Chad T Willardson President	7.02% $6.3M	0.07% 505.2K shares	Q3 2023 Held for 2y 2m	$89.8M
B Belfer Management LLC Institution	-	4.41% $317.8K	0.00% 25.5K shares	Q3 2022 Held for 3y 2m	$7.2M
G GREENHAVEN ASSOCIATES INC Long Only Manager	Edgar Wachenheim Chairman	4.32% $228.5M	2.69% 18.3M shares	Q3 2025 Held for 2 months	$5.3B
Clarkston Capital Partners LLC Long Only Manager	Jeffrey Anthony Hakala CEO	4.04% $187.5M	2.20% 15.0M shares	Q1 2023 Held for 2y 8m	$4.6B
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	Raymond Eugene Glotzbach CEO	3.28% $64.3M	0.76% 5.1M shares	Q3 2025 Held for 2 months	$2.0B
V Voss Capital LLC Institution	-	3.22% $56.5M	0.66% 4.5M shares	Q2 2025 Held for 5 months	$1.8B

Hedge Fund Spotlight

Discover hedge funds investing in AVTR

Broyhill Asset Management

Hedge Fund • Multi-Strategy

Portfolio ManagerMarkham Hunt Broyhill

Portfolio Value: $113.8M
Positions: 80
Last Reported: Q3 2025

Sector Allocation

Position in Avantor

Market Value: $3.5M
Shares Held: 283.9K
Portfolio Weight: 3.11%
Owned Since: 2024-Q4

Top Holding	Sector	Market Value	Weight
1 iShares 1-3 Year Treasury Bond SHY	ETF ETF	$6.7M	5.92%
2 Philip Morris International PM	Tobacco Consumer Defensive	$6.6M	5.82%
3 IQVIA IQV	Medical - Diagnostics & Research Healthcare	$5.1M	4.51%