Who owns Organon & Co.?
Institutional ownership of OGN from SEC Form 13F filings across 419 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
419
13F holders
$2.16B
value, 2026 filers
61.8%
of shares outstanding (162.4M sh)
61
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of OGN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 32.1M | $434.0M | 0.0% | 12.2% | +1.1% |
| 2 | Pentwater Capital Management LPNEW | 18.1M | $245.1M | 1.5% | 6.9% | new |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 15.1M | $204.9M | 0.0% | 5.8% | -30.7% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 11.9M | $161.3M | 0.0% | 4.5% | -49.3% |
| 5 | GOLDMAN SACHS GROUP INC | 5.2M | $70.4M | 0.0% | 2% | +223.9% |
| 6 | UBS Group AG | 4.9M | $65.8M | 0.0% | 1.8% | +39.9% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 4.8M | $65.2M | 0.0% | 1.8% | +1.2% |
| 8 | ALLIANCEBERNSTEIN L.P. | 4.8M | $28.5M | 0.0% | 1.8% | +559.9% |
| 9 | Man Group plcNEW | 4.2M | $56.6M | 0.1% | 1.6% | new |
| 10 | Sixth Street Partners Management Company, L.P.NEW | 3.5M | $46.8M | 8.1% | 1.3% | new |
| 11 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.5M | $46.8M | 0.0% | 1.3% | +2.8% |
| 12 | MILLENNIUM MANAGEMENT LLC | 3.4M | $46.6M | 0.0% | 1.3% | -49.2% |
| 13 | FIRST TRUST ADVISORS LP | 3.1M | $42.0M | 0.0% | 1.2% | -4.0% |
| 14 | Magnetar Financial LLCNEW | 2.8M | $38.0M | 0.3% | 1.1% | new |
| 15 | Bank of New York Mellon Corp | 2.3M | $30.9M | 0.0% | 0.9% | +2.3% |
| 16 | MORGAN STANLEY | 2.2M | $29.8M | 0.0% | 0.8% | -33.1% |
| 17 | Balyasny Asset Management L.P. | 2.2M | $29.7M | 0.0% | 0.8% | +908.1% |
| 18 | Allianz Asset Management GmbH | 2.1M | $28.3M | 0.0% | 0.8% | +93.3% |
| 19 | NORTHERN TRUST CORP | 2.1M | $28.2M | 0.0% | 0.8% | +8.7% |
| 20 | Public Sector Pension Investment Board | 1.8M | $24.4M | 0.1% | 0.7% | +94.0% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 1.7M | $22.5M | 0.0% | 0.6% | +3.0% |
| 22 | Invesco Ltd. | 1.6M | $22.2M | 0.0% | 0.6% | -26.2% |
| 23 | PRINCIPAL FINANCIAL GROUP INC | 1.3M | $17.1M | 0.0% | 0.5% | +0.5% |
| 24 | FMR LLC | 1.2M | $16.1M | 0.0% | 0.5% | -53.6% |
| 25 | HSBC HOLDINGS PLC | 1.1M | $14.6M | 0.0% | 0.4% | +4706.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.