OEC Orion S.A.
Orion S.A. (OEC) Institutional Ownership
What the institutions did with OEC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| PZENA INVESTMENT MANAGEMENT LLC | 4.8M | 9.0% |
| BlackRock, Inc. | 4.2M | 7.9% |
| Divisar Capital Management LLC | 3.4M | 6.4% |
| AMERICAN CENTURY COMPANIES INC | 3.2M | 6.0% |
| AQR CAPITAL MANAGEMENT LLC | 2.5M | 4.6% |
| D. E. Shaw & Co., Inc. | 2.2M | 4.1% |
| DIMENSIONAL FUND ADVISORS LP | 2.0M | 3.7% |
| Invesco Ltd. | 1.7M | 3.1% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.6M | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4M | 2.7% |
| MORGAN STANLEY | 1.3M | 2.5% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 2.4% |
| Harvey Partners, LLC | 1.2M | 2.2% |
| STATE STREET CORP | 1.2M | 2.2% |
| MACKENZIE FINANCIAL CORP | 1.0M | 1.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 990.4K | 1.9% |
| ACADIAN ASSET MANAGEMENT LLC | 928.1K | 1.7% |
| CSM Advisors, LLC | 807.3K | 1.5% |
| JPMORGAN CHASE & CO | 800.2K | 1.5% |
| Minneapolis Portfolio Management Group, LLC | 752.3K | 1.4% |
| RAYMOND JAMES FINANCIAL INC | 745.2K | 1.4% |
| Quinn Opportunity Partners LLC | 647.6K | 1.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 637.7K | 1.2% |
| TWO SIGMA INVESTMENTS, LP | 624.9K | 1.2% |
| BNP PARIBAS FINANCIAL MARKETS | 613.7K | 1.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AMERICAN CENTURY COMPANIES INC | Increased | 2.5M | 3.2M | +695.3K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 346.3K | 928.1K | +581.8K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.0M | 2.5M | +516.8K |
| JANE STREET GROUP, LLC | Reduced | 479.7K | 77.1K | -402.6K |
| MACKENZIE FINANCIAL CORP | Increased | 625.9K | 1.0M | +382.7K |
| D. E. Shaw & Co., Inc. | Reduced | 2.5M | 2.2M | -282.5K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 1.4M | 1.6M | +256.3K |
| BlackRock, Inc. | Increased | 4.0M | 4.2M | +245.5K |
| MARSHALL WACE, LLP | Reduced | 294.2K | 56.8K | -237.4K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 1.5M | 1.3M | -213.4K |
| THOR INVESTMENT MANAGEMENT INC /OH/ /ADV | Sold Out | 212.3K | 0 | -212.3K |
| Divisar Capital Management LLC | Reduced | 3.6M | 3.4M | -182.5K |
| SEI INVESTMENTS CO | Reduced | 414.0K | 234.8K | -179.2K |
| MILLENNIUM MANAGEMENT LLC | Increased | 26.5K | 201.9K | +175.5K |
| PZENA INVESTMENT MANAGEMENT LLC | Increased | 4.6M | 4.8M | +172.1K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.3M | 1.4M | +166.8K |
| UBS Group AG | Increased | 244.3K | 394.7K | +150.4K |
| Engineers Gate Manager LP | Reduced | 231.2K | 81.8K | -149.4K |
| PANAGORA ASSET MANAGEMENT INC | New | 0 | 147.8K | +147.8K |
| Penn Capital Management Company, LLC | Reduced | 204.6K | 64.7K | -140.0K |
| Squarepoint Ops LLC | Sold Out | 134.6K | 0 | -134.6K |
| XTX Topco Ltd | Reduced | 140.7K | 16.0K | -124.7K |
| Russell Investments Group, Ltd. | Increased | 171.5K | 290.7K | +119.2K |
| Point72 Asset Management, L.P. | Increased | 65.2K | 179.2K | +114.0K |
| Harvey Partners, LLC | Reduced | 1.3M | 1.2M | -113.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.