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Avantor

429 hedge funds and large institutions have $5.3B invested in Avantor in 2026 Q1 according to their latest regulatory filings, with 92 funds opening new positions, 166 increasing their positions, 126 reducing their positions, and 73 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

less ownership

Funds ownership:

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

34% less capital invested

Capital invested by funds: $7.98B → $5.3B (-$2.67B)

93% less call options, than puts

Call options by funds: $4.76M | Put options by funds: $72.8M

Holders
429
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.76M
Puts
$72.8M
Net Calls
Net Calls Change

Top Buyers

1 +$88.6M
2 +$77.3M
3 +$67.8M
4
BlackRock
BlackRock
New York
+$60.1M
5
YAM
Yacktman Asset Management
Texas
+$46.7M
Name Holding Trade Value Shares
Change
Change in
Stake
IG
151
ING Group
Netherlands
$1.35M
VIA
152
Vanguard Investments Australia
Australia
$1.34M
COPPSERS
153
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$1.34M
SOMRS
154
State of Michigan Retirement System
Michigan
$1.29M
AC
155
AXQ Capital
New Jersey
$1.26M
NMIMC
156
Northwestern Mutual Investment Management Company
Wisconsin
$1.2M
KK
157
KLP Kapitalforvaltning
Norway
$1.18M
OTL
158
Oak Thistle LLC
New York
$1.13M
NMERB
159
New Mexico Educational Retirement Board
New Mexico
$1.11M
MP
160
Mangrove Partners
Connecticut
$1.1M
OPERF
161
Oregon Public Employees Retirement Fund
Oregon
$1.1M
Creative Planning
162
Creative Planning
Kansas
$1.03M
BA
163
Bridgewater Associates
Connecticut
$1.01M
AIP
164
Ameritas Investment Partners
Nebraska
$985K
Robeco Institutional Asset Management
165
Robeco Institutional Asset Management
Netherlands
$976K
MCM
166
Moore Capital Management
New York
$903K
BNP Paribas Financial Markets
167
BNP Paribas Financial Markets
France
$874K
Mercer Global Advisors
168
Mercer Global Advisors
Colorado
$870K
DFCM
169
Dark Forest Capital Management
Puerto Rico
$869K
GF
170
Gabelli Funds
New York
$866K
Victory Capital Management
171
Victory Capital Management
Texas
$840K
Pictet Asset Management
172
Pictet Asset Management
Switzerland
$838K
Grantham, Mayo, Van Otterloo & Co (GMO)
173
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$837K
Assenagon Asset Management
174
Assenagon Asset Management
Luxembourg
$832K
Franklin Resources
175
Franklin Resources
California
$831K