Who owns Organon & Co.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of OGN from SEC Form 13F filings across 635 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.
As of the 2026-06-30 reporting period, 635 institutions disclosed 218.6M shares of Organon & Co. worth $2.92B — about 83.2% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
635
13F holders
$2.92B
value, 2026 filers
83.2%
of shares outstanding (218.6M sh)
130
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% | +1.5% |
| 5 | STATE STREET CORP | 9.7M | $130.8M | 0.0% | 3.7% | -3.0% |
| 6 | GOLDMAN SACHS GROUP INC | 5.2M | $70.4M | 0.0% | 2% | +223.9% |
| 7 | UBS Group AG | 4.9M | $65.8M | 0.0% | 1.8% | +39.9% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 4.8M | $65.2M | 0.0% | 1.8% | +1.2% |
| 9 | ALLIANCEBERNSTEIN L.P. | 4.8M | $28.5M | 0.0% | 1.8% | +559.9% |
| 10 | Man Group plcNEW | 4.2M | $56.6M | 0.1% | 1.6% | new |
| 11 | AQR Arbitrage LLCNEW | 3.9M | $52.4M | 0.7% | 1.5% | new |
| 12 | PRIVATE MANAGEMENT GROUP INC | 3.7M | $50.7M | 1.3% | 1.4% | -14.4% |
| 13 | LSV ASSET MANAGEMENT | 3.7M | $50.6M | 0.1% | 1.4% | -48.5% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.5M | $46.8M | 0.0% | 1.3% | +2.8% |
| 15 | MILLENNIUM MANAGEMENT LLC | 3.4M | $46.6M | 0.0% | 1.3% | -49.2% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 3.3M | $44.2M | 0.0% | 1.2% | 0.0% |
| 17 | FIRST TRUST ADVISORS LP | 3.1M | $42.0M | 0.0% | 1.2% | -4.0% |
| 18 | Capula Management LtdNEW | 3.0M | $41.3M | 0.1% | 1.2% | new |
| 19 | NEXPOINT ASSET MANAGEMENT, L.P.NEW | 3.0M | $40.8M | 2.7% | 1.1% | new |
| 20 | Magnetar Financial LLCNEW | 2.8M | $38.0M | 0.3% | 1.1% | new |
| 21 | GLAZER CAPITAL, LLCNEW | 2.7M | $37.2M | 0.9% | 1% | new |
| 22 | KAHN BROTHERS GROUP INC | 2.7M | $36.2M | 5.7% | 1% | -51.8% |
| 23 | Bank of New York Mellon Corp | 2.3M | $30.9M | 0.0% | 0.9% | +2.3% |
| 24 | MORGAN STANLEY | 2.2M | $29.8M | 0.0% | 0.8% | -33.1% |
| 25 | Balyasny Asset Management L.P. | 2.2M | $29.7M | 0.0% | 0.8% | +908.1% |
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.