ORGANON & CO (OGN) Institutional Ownership Changes & 13F Activity
ORGANON & CO (OGN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Pentwater Capital Management Lp, Man Group Plc, Alliancebernstein L.P., Aqr Arbitrage Llc, and Goldman Sachs Group Inc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| State Street Corp | Sell | -297,403 | -3.0% | 9,659,371 | $130.79M | Q2 2026 | Sep 22, 2026 |
| Integrated Wealth Concepts Llc | Sell | -29,588 | -34.5% | 56,076 | $759.27K | Q2 2026 | Sep 09, 2026 |
| Manufacturers Life Insurance Company, The | Buy | +12,321 | +23.3% | 65,137 | $881.96K | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Buy | +110 | +10.3% | 1,179 | $15.96K | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Sell | -1,654,031 | -82.8% | 344,359 | $4.66M | Q2 2026 | Sep 02, 2026 |
| Allianz Asset Management Gmbh | Buy | +1,010,711 | +93.3% | 2,093,459 | $28.35M | Q2 2026 | Sep 02, 2026 |
| Brown, Lisle/Cummings, Inc. | Sell | -500 | -12.1% | 3,643 | $49.33K | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Sell | -2,412 | -6.9% | 32,772 | $443.75K | Q2 2026 | Aug 27, 2026 |
| Groupe La Francaise | Buy | +775,382 | — | 775,382 | $10.50M | Q2 2026 | Aug 25, 2026 |
| Absolute Gestao De Investimentos Ltda. | Buy | +665,230 | — | 665,230 | $9.01M | Q2 2026 | Aug 25, 2026 |
| California State Teachers Retirement System | Sell | -26,860 | -8.2% | 300,215 | $4.06M | Q2 2026 | Aug 24, 2026 |
| Gill Capital Partners, Llc | Buy | +25 | — | 25 | $339.00 | Q2 2026 | Aug 20, 2026 |
| Mercer Global Advisors Inc | Sell | -25,308 | -48.7% | 26,673 | $361.16K | Q2 2026 | Aug 19, 2026 |
| Mint Tower Capital Management B.V. | Buy | +80,000 | — | 80,000 | $1.08M | Q2 2026 | Aug 18, 2026 |
| Ensign Peak Advisors, Inc | Sell | -13,959 | -100.0% | 0 | $0.00 | Q2 2026 | Aug 18, 2026 |
| Kahn Brothers Group | Sell | -2,866,470 | -51.8% | 2,670,523 | $36.16M | Q2 2026 | Aug 17, 2026 |
| Glazer Capital, Llc | Buy | +2,745,000 | — | 2,745,000 | $37.17M | Q2 2026 | Aug 17, 2026 |
| Penderfund Capital Management Ltd. | Buy | +44,900 | — | 44,900 | $607.95K | Q2 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Buy | +15,012 | — | 15,012 | $203.26K | Q2 2026 | Aug 17, 2026 |
| Jefferies Financial Group Inc. | Sell | -1,950 | -3.8% | 50,000 | $677.00K | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Sell | -975 | -1.3% | 74,611 | $1.01M | Q2 2026 | Aug 17, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +117 | — | 117 | $1.59K | Q2 2026 | Aug 17, 2026 |
| Pentwater Capital Management Lp | Buy | +18,100,000 | — | 18,100,000 | $245.07M | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Buy | +4,180,500 | — | 4,180,500 | $56.60M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Buy | +4,034,159 | +559.9% | 4,754,671 | $28.48M | Q2 2026 | Aug 14, 2026 |
| Aqr Arbitrage Llc | Buy | +3,880,354 | — | 3,880,354 | $52.38M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +3,593,677 | +223.9% | 5,199,002 | $70.39M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -3,339,105 | -49.2% | 3,442,430 | $46.61M | Q2 2026 | Aug 14, 2026 |
| Capula Management Ltd | Buy | +3,049,207 | — | 3,049,207 | $41.29M | Q2 2026 | Aug 14, 2026 |
| Nexpoint Asset Management, L.P. | Buy | +3,009,630 | — | 3,009,630 | $40.75M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about OGN activity
Which institutional owners are buying OGN?
Institutional owners buying OGN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OGN activity?
"Buy" means an investor increased their reported position in OGN compared to the prior reporting period. This reflects growing exposure to ORGANON & CO (OGN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OGN increasing?
Institutional interest in OGN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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