We are live on ! Find out more
OGN icon

Organon & Co
OGN

669 hedge funds and large institutions have $2.13B invested in Organon & Co in 2025 Q3 according to their latest regulatory filings, with 65 funds opening new positions, 159 increasing their positions, 233 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

3% more capital invested

Capital invested by funds: $2.07B → $2.13B (+$60.6M)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

6% less call options, than puts

Call options by funds: $33.2M | Put options by funds: $35.2M

4% less funds holding

Funds holding: 694 → 669 (-25)

5.28% less ownership

Funds ownership: 82.19% → 76.91% (-5.3%)

20% less first-time investments, than exits

New positions opened: 65 | Existing positions closed: 81

32% less repeat investments, than reductions

Existing positions increased: 159 | Existing positions reduced: 233

Holders
669
Holders Change
-25
Holders Change %
-3.6%
% of All Funds
8.78%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
65
Increased
159
Reduced
233
Closed
81
Calls
$33.2M
Puts
$35.2M
Net Calls
-$2.05M
Net Calls Change
-$14M

Top Buyers

1
Vanguard Group
Vanguard Group
Pennsylvania
+$35.8M
2
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board
Ontario, Canada
+$23.1M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$11.1M
4
GAM
Gotham Asset Management
New York
+$9.89M
5
AQR Capital Management
AQR Capital Management
Connecticut
+$9.04M

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
-$49.5M
2
Millennium Management
Millennium Management
New York
-$44.8M
3
UBS Group
UBS Group
Switzerland
-$31.3M
4
Nordea Investment Management
Nordea Investment Management
Sweden
-$17.8M
5
Morgan Stanley
Morgan Stanley
New York
-$13.6M
Name Holding Trade Value Shares
Change 		Change in
Stake
AFP
251
Ausdal Financial Partners
Iowa
$182K +$9.21K +938 +6%
AIM
252
Aigen Investment Management
New York
$179K -$42.9K -4,370 -21%
HI
253
Humankind Investments
New York
$178K -$3.81K -388 -2%
FM
254
Foster & Motley
Ohio
$177K -$51.1K -5,211 -24%
DM
255
Deerfield Management
New York
$175K – – –
UCFA
256
United Capital Financial Advisors
Texas
$175K +$160K +16,352 New
CAM
257
Carret Asset Management
New York
$174K +$628 +64 +0.4%
WAM
258
Wolverine Asset Management
Illinois
$173K -$61.8K -6,295 -28%
LFG
259
Larson Financial Group
Missouri
$173K +$83.5K +8,509 +111%
Mariner
260
Mariner
Kansas
$171K -$246K -25,075 -61%
PA
261
Parallel Advisors
California
$171K +$29.6K +3,020 +23%
X
262
Xponance
Pennsylvania
$170K -$5.11K -521 -3%
CB
263
Commerce Bank
Missouri
$168K -$15.3K -1,557 -9%
GWMR
264
GC Wealth Management RIA
Massachusetts
$164K +$151K +15,355 New
EM
265
Excalibur Management
Massachusetts
$161K -$2.04K -208 -1%
DTL
266
Dynamic Technology Lab
Singapore
$158K +$145K +14,818 New
Rockefeller Capital Management
267
Rockefeller Capital Management
New York
$158K +$145K +14,789 New
TNA
268
True North Advisors
Texas
$158K +$145K +14,772 New
ICP
269
Ilex Capital Partners
United Kingdom
$156K +$143K +14,575 New
CL
270
Choreo LLC
Illinois
$155K +$8.32K +848 +6%
ECM
271
Evergreen Capital Management
Washington
$155K +$27.6K +2,812 +24%
BFA
272
Bill Few Associates
Pennsylvania
$153K -$7.03K -716 -5%
CIA
273
Cladis Investment Advisory
Montana
$151K -$17.9K -1,822 -11%
GC
274
Globeflex Capital
California
$151K -$1.3M -132,849 -90%
URS
275
Utah Retirement Systems
Utah
$150K – – –
9 10
11
12 13

OGN Hedge Fund Activity: Q3 2025 in Review

669 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Organon & Co (OGN) for Q3 2025, worth a combined $2.13B — up 2.9% from $2.07B a quarter earlier.

Sellers outnumbered buyers: 81 funds closed out of OGN and 65 opened new positions — a net loss of 16 holders — while 233 trimmed existing stakes and 159 added.

The largest buyer was Vanguard Group, adding an estimated $35.8M. The largest seller was Citadel Advisors, cutting an estimated $49.5M.

  • 669 institutional investors held Organon & Co (OGN) as of Q3 2025, down from 694 in Q2 2025.
  • Funds reported $2.13B of Organon & Co stock for Q3 2025, up 2.9% quarter-over-quarter.
  • 65 funds opened new Organon & Co positions in Q3 2025 and 81 closed out, a net change of -16 holders.
  • The largest Organon & Co buyer in Q3 2025 was Vanguard Group, an estimated $35.8M added.
  • The largest Organon & Co seller in Q3 2025 was Citadel Advisors, an estimated $49.5M sold.

Based on aggregated 13F filings for Q3 2025.