Organon & Co
721 hedge funds and large institutions have $3.01B invested in Organon & Co in 2025 Q1 according to their latest regulatory filings, with 82 funds opening new positions, 226 increasing their positions, 228 reducing their positions, and 93 closing their positions.
25% more call options, than puts
Call options by funds: $31.7M | Put options by funds: $25.4M
1% less repeat investments, than reductions
Existing positions increased: 226 | Existing positions reduced: 228
10% less capital inflows, than outflows
Capital inflows: $357M | Capital outflows: $395M
1.31% less ownership
Funds ownership: 79.87% → 78.56% (-1.3%)
3% less funds holding
Funds holding: 741 → 721 (-20)
12% less first-time investments, than exits
New positions opened: 82 | Existing positions closed: 93
20% less funds holding in top 10
Funds holding in top 10: 5 → 4 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$61.6M |
| 2 |
Balyasny Asset Management
Chicago,
Illinois
|
+$21.7M |
| 3 |
HF
HRT Financial
New York
|
+$20.2M |
| 4 |
Morgan Stanley
New York
|
+$16.3M |
| 5 |
Millennium Management
New York
|
+$14.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Pacer Advisors
Malvern,
Pennsylvania
|
-$166M |
| 2 |
Nordea Investment Management
Stockholm,
Sweden
|
-$29.1M |
| 3 |
MF
Magnetar Financial
Evanston,
Illinois
|
-$25.9M |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$23.3M |
| 5 |
BlackRock
New York
|
-$14.1M |
OGN Hedge Fund Activity: Q1 2025 in Review
721 of the 7,478 institutional investors tracked by Wall St. Rank reported a position in Organon & Co (OGN) for Q1 2025, worth a combined $3.01B — down 2% from $3.07B a quarter earlier.
Sellers outnumbered buyers: 93 funds closed out of OGN and 82 opened new positions — a net loss of 11 holders — while 228 trimmed existing stakes and 226 added.
The largest buyer was Citadel Advisors, adding an estimated $61.6M. The largest seller was Pacer Advisors, exiting entirely with an estimated $166M sold.
- 721 institutional investors held Organon & Co (OGN) as of Q1 2025, down from 741 in Q4 2024.
- Funds reported $3.01B of Organon & Co stock for Q1 2025, down 2% quarter-over-quarter.
- 82 funds opened new Organon & Co positions in Q1 2025 and 93 closed out, a net change of -11 holders.
- The largest Organon & Co buyer in Q1 2025 was Citadel Advisors, an estimated $61.6M added.
- The largest Organon & Co seller in Q1 2025 was Pacer Advisors, an estimated $166M sold.
Based on aggregated 13F filings for Q1 2025.