Organon & Co (OGN) Superinvestor holders
22 of the superinvestors we track hold Organon & Co (OGN) in their latest 13F filings, $522M in total.
Summary
The largest holder is Matthew Halbower (Pentwater Capital Management), with $245M, 2.0% of the portfolio.
In their latest quarter: 7 opened a new position, 1 added, 11 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Matthew Halbower Pentwater Capital Management |
New position | 18,100,000 | $245M | 2.0% | Q2 2026 |
| Man Group Man Group plc |
New position | 4,180,500 | $57M | 0.1% | Q2 2026 |
| Alec Litowitz Magnetar Capital |
New position | 2,810,019 | $38M | 0.4% | Q2 2026 |
| Paul Glazer Glazer Capital |
New position | 2,745,000 | $37M | 0.9% | Q2 2026 |
| Thomas Kahn Kahn Brothers Group |
Trimmed | 2,670,523 | $36M | 5.7% | Q2 2026 |
| John Orrico Water Island Capital |
New position | 1,374,899 | $19M | 2.1% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Trimmed | 1,245,588 | $17M | 0.0% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Trimmed | 1,032,313 | $14M | 0.0% | Q2 2026 |
| Paul Marshall Marshall Wace |
Trimmed | 828,133 | $11M | 0.0% | Q2 2026 |
| Hotchkis & Wiley Hotchkis & Wiley Capital Management |
Trimmed | 743,270 | $10M | 0.0% | Q2 2026 |
| Charles Brandes Brandes Investment Partners, LP |
Added | 729,502 | $10M | 0.1% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 718,753 | $10M | 0.0% | Q2 2026 |
| First Manhattan First Manhattan Co |
Trimmed | 504,647 | $7M | 0.0% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Trimmed | 241,392 | $3M | 0.0% | Q2 2026 |
| Peter Muller PDT Partners |
Trimmed | 230,275 | $3M | 0.2% | Q2 2026 |
| Josef Lakonishok LSV Asset Management |
Trimmed | 147,108 | $2M | 0.0% | Q3 2026 |
| Chuck Royce Royce Investment Partners |
Held | 93,576 | $1M | 0.0% | Q3 2026 |
| Mario Gabelli GAMCO Investors |
New position | 86,872 | $1M | 0.0% | Q2 2026 |
| John Gardner Gardner Lewis Asset Management |
New position | 76,053 | $1M | 0.2% | Q2 2026 |
| Fayez Sarofim Fayez Sarofim & Co |
Held | 16,797 | $227,431 | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Trimmed | 11,180 | $151,377 | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
Held | 3 | $0 | 0.0% | Q3 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 22 |
| Q1 2026 | 20 |
| Q4 2025 | 22 |
| Q3 2025 | 21 |
| Q2 2025 | 21 |
| Q1 2025 | 14 |
| Q4 2024 | 17 |
| Q3 2024 | 21 |
Questions about Organon & Co
Which superinvestors own Organon & Co?
22 of the superinvestors we track hold Organon & Co (OGN) in their latest 13F filings, $522M in total. Matthew Halbower, Man Group, Alec Litowitz, Paul Glazer, Thomas Kahn, John Orrico.
Who is the largest superinvestor holder of OGN?
The largest holder is Matthew Halbower (Pentwater Capital Management), with $245M, 2.0% of the portfolio.
From Organon & Co's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.