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Organon & Co

600 hedge funds and large institutions have $1.2B invested in Organon & Co in 2026 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 132 increasing their positions, 199 reducing their positions, and 95 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less funds holding

Funds holding:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less call options, than puts

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

16% less capital invested

Capital invested by funds: $1.42B → $1.2B (-$223M)

34% less repeat investments, than reductions

Existing positions increased: 132 | Existing positions reduced: 199

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
600
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$19.2M
Puts
$22.4M
Net Calls
Net Calls Change

Top Buyers

1 +$47.6M
2 +$30.1M
3 +$19.4M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$19M
5
KBG
Kahn Brothers Group
New York
+$14.4M

Top Sellers

1 -$39.1M
2 -$38.5M
3 -$19.2M
4
Jane Street
Jane Street
New York
-$15.1M
5
GAM
Gotham Asset Management
New York
-$10.5M
Name Holding Trade Value Shares
Change
Change in
Stake
FRM
126
Fox Run Management
Connecticut
$509K
JG
127
Jain Global
New York
$508K
AFAS
128
Acorn Financial Advisory Services
Virginia
$505K
Amundi
129
Amundi
France
$485K
AB
130
Atlas Brown
Kentucky
$480K
AB
131
Amalgamated Bank
New York
$476K
Creative Planning
132
Creative Planning
Kansas
$473K
PNC Financial Services Group
133
PNC Financial Services Group
Pennsylvania
$469K
MFS
134
Mirabella Financial Services
United Kingdom
$465K
AL
135
Arnhold LLC
New York
$461K
Ohio Public Employees Retirement System (OPERS)
136
Ohio Public Employees Retirement System (OPERS)
Ohio
$453K
Acadian Asset Management
137
Acadian Asset Management
Massachusetts
$449K
MP
138
Mangrove Partners
Connecticut
$438K
ASRS
139
Arizona State Retirement System
Arizona
$428K
OAC
140
OMERS Administration Corp
Ontario, Canada
$427K
Fifth Third Bancorp
141
Fifth Third Bancorp
Ohio
$412K
YCM
142
Yousif Capital Management
Michigan
$406K
SIM
143
SummerHaven Investment Management
Connecticut
$403K
TRSOTSOK
144
Teachers Retirement System of the State of Kentucky
Kentucky
$391K
VIA
145
Vanguard Investments Australia
Australia
$388K
COPPSERS
146
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$385K
OPERF
147
Oregon Public Employees Retirement Fund
Oregon
$356K
Jacobs Levy Equity Management
148
Jacobs Levy Equity Management
New Jersey
$351K
SCM
149
Sterling Capital Management
North Carolina
$351K
SCM
150
Sterneck Capital Management
Missouri
$350K