Organon
OGN · NYSE
Who owns OGN
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 41.2% of OGN’s shares.
- BlackRock Institutional Trust Company, N.A.11.1%
- Pentwater Capital Management LP6.9%
- Vanguard Portfolio Management, LLC5.8%
- Vanguard Capital Management, LLC4.5%
- Next 6 largest institutions12.9%
- All other shareholders58.8%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 29.26M | 11.14% |
| Pentwater Capital Management LP | 18.10M | 6.89% |
| Vanguard Portfolio Management, LLC | 15.13M | 5.76% |
| Vanguard Capital Management, LLC | 11.91M | 4.54% |
| State Street Investment Management (US) | 9.66M | 3.68% |
| AQR Capital Management, LLC | 5.13M | 1.95% |
| UBS Financial Services, Inc. | 4.84M | 1.84% |
| Geode Capital Management, L.L.C. | 4.82M | 1.83% |
| AllianceBernstein L.P. | 4.75M | 1.81% |
| Goldman Sachs & Co. LLC | 4.56M | 1.74% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 16.01M | 6.10% |
| Vanguard Total Stock Market Index Fund | 8.36M | 3.18% |
| Vanguard Small-Cap Index Fund | 6.04M | 2.30% |
| Vanguard Small-Cap Value Index Fund | 3.83M | 1.46% |
| Vanguard Extended Market Index Fund | 3.02M | 1.15% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $353.08K (1 trade) and sold $553.38K (2 trades) of OGN on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Arjona Ferreira Juan Camilo | Option exercise | 11.52K | — |
| Arjona Ferreira Juan Camilo | Tax withholding | 4.13K | $56.31K |
| Arjona Ferreira Juan Camilo | Option exercise | 11.52K | — |
| Drinane Juliana Papa | Sale | 14.76K | $200.31K |
| Ozuah Philip | Award | 17.86K | $240.00K |
| Leone Deborah R | Award | 17.86K | $240.00K |
| Sequeira Ramona | Award | 17.86K | $240.00K |
| Ezekowitz Alan | Award | 17.86K | $240.00K |
| Patton Cynthia M | Award | 17.86K | $240.00K |
| Gayle Helene D | Award | 17.86K | $240.00K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Kevin HernHouse | Sale | $1K–$15K | Aug 5, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 18.96M
- Days to cover
- 9.05
- % of shares outstanding
- 7.22%
- Average daily volume
- 2.09M
- Change since last report
- +8.2%
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