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Charles River Laboratories

568 hedge funds and large institutions have $10.5B invested in Charles River Laboratories in 2025 Q4 according to their latest regulatory filings, with 111 funds opening new positions, 175 increasing their positions, 204 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

4.8% more ownership

Funds ownership: 102.48%107.28% (+4.8%)

3% more funds holding

Funds holding: 551568 (+17)

14% less repeat investments, than reductions

Existing positions increased: 175 | Existing positions reduced: 204

Holders
568
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$33.4M
Puts
$24.4M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
California State Teachers Retirement System (CalSTRS)
101
California State Teachers Retirement System (CalSTRS)
California
$9.33M
WG
102
Winton Group
United Kingdom
$9.21M
KCM
103
Kennedy Capital Management
Missouri
$9.11M
IHAM
104
Integral Health Asset Management
New York
$8.98M
AssetMark Inc
105
AssetMark Inc
California
$8.74M
State Board of Administration of Florida Retirement System
106
State Board of Administration of Florida Retirement System
Florida
$8.64M
CCMG
107
Clark Capital Management Group
Pennsylvania
$8.46M
New York State Teachers Retirement System (NYSTRS)
108
New York State Teachers Retirement System (NYSTRS)
New York
$8.12M
Prudential Financial
109
Prudential Financial
New Jersey
$7.58M
JPMIA
110
J.P. Marvel Investment Advisors
Massachusetts
$7.43M
Manulife (Manufacturers Life Insurance)
111
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$7.39M
VanEck Associates
112
VanEck Associates
New York
$7.08M
State of Wisconsin Investment Board
113
State of Wisconsin Investment Board
Wisconsin
$6.94M
CS
114
Candriam SCA
Luxembourg
$6.64M
AG
115
Algert Global
California
$6.56M
CM
116
Castleark Management
Illinois
$6.43M
LKIM
117
Lawson Kroeker Investment Management
Nebraska
$6.31M
Two Sigma Investments
118
Two Sigma Investments
New York
$5.61M
1M
119
13D Management
New York
$5.59M
EGM
120
Engineers Gate Manager
New York
$5.51M
LPL Financial
121
LPL Financial
California
$5.48M
EIP
122
Epoch Investment Partners
New York
$5.47M
National Bank of Canada
123
National Bank of Canada
Quebec, Canada
$5.42M
MT
124
Midwest Trust
Kansas
$5.36M
IAM
125
Iridian Asset Management
Connecticut
$5.3M