PRLB Proto Labs Inc
Proto Labs Inc (PRLB) Institutional Ownership
What the institutions did with PRLB 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 September 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 subscribeOwnership map
Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 1.0M | 21.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 680.1K | 14.2% |
| Nuveen, LLC | 568.9K | 11.9% |
| FMR LLC | 232.5K | 4.9% |
| JUPITER ASSET MANAGEMENT LTD | 188.5K | 3.9% |
| NORDEA INVESTMENT MANAGEMENT AB | 179.0K | 3.7% |
| PRINCIPAL FINANCIAL GROUP INC | 153.2K | 3.2% |
| Bank of New York Mellon Corp | 141.6K | 3.0% |
| CITIGROUP INC | 119.7K | 2.5% |
| GAGNON SECURITIES LLC | 118.4K | 2.5% |
| Connor, Clark & Lunn Investment Management Ltd. | 111.7K | 2.3% |
| Public Sector Pension Investment Board | 94.6K | 2.0% |
| UBS Group AG | 80.8K | 1.7% |
| Roubaix Capital, LLC | 64.0K | 1.3% |
| ACADIAN ASSET MANAGEMENT LLC | 63.6K | 1.3% |
| RHUMBLINE ADVISERS | 56.8K | 1.2% |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | 51.4K | 1.1% |
| Squarepoint Ops LLC | 46.5K | 1.0% |
| SEI INVESTMENTS CO | 45.7K | 1.0% |
| BARCLAYS PLC | 40.8K | 0.9% |
| Edgestream Partners, L.P. | 35.0K | 0.7% |
| Lisanti Capital Growth, LLC | 33.7K | 0.7% |
| AEGON ASSET MANAGEMENT UK Plc | 31.0K | 0.6% |
| HUSSMAN STRATEGIC ADVISORS, INC. | 27.3K | 0.6% |
| INTECH INVESTMENT MANAGEMENT LLC | 25.9K | 0.5% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Reduced | 442.7K | 232.5K | -210.1K |
| Nuveen, LLC | Increased | 420.1K | 568.9K | +148.8K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.2M | 1.0M | -123.3K |
| CITIGROUP INC | Increased | 31.3K | 119.7K | +88.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 614.0K | 680.1K | +66.0K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | New | 0 | 51.4K | +51.4K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 99.2K | 63.6K | -35.5K |
| Lisanti Capital Growth, LLC | New | 0 | 33.7K | +33.7K |
| Edgestream Partners, L.P. | Reduced | 65.8K | 35.0K | -30.8K |
| Squarepoint Ops LLC | Increased | 16.4K | 46.5K | +30.0K |
| BARCLAYS PLC | Increased | 10.9K | 40.8K | +29.9K |
| NORDEA INVESTMENT MANAGEMENT AB | Reduced | 203.9K | 179.0K | -24.9K |
| Assenagon Asset Management S.A. | Sold Out | 24.5K | 0 | -24.5K |
| SEI INVESTMENTS CO | Increased | 24.1K | 45.7K | +21.7K |
| SG Capital Management LLC | Sold Out | 20.1K | 0 | -20.1K |
| INTECH INVESTMENT MANAGEMENT LLC | Reduced | 45.8K | 25.9K | -19.9K |
| PRINCIPAL FINANCIAL GROUP INC | Increased | 135.1K | 153.2K | +18.1K |
| UBS Group AG | Reduced | 97.3K | 80.8K | -16.5K |
| State of New Jersey Common Pension Fund D | New | 0 | 14.9K | +14.9K |
| HUSSMAN STRATEGIC ADVISORS, INC. | Reduced | 42.0K | 27.3K | -14.7K |
| Legato Capital Management LLC | New | 0 | 14.6K | +14.6K |
| SIMPLEX TRADING, LLC | Increased | 176 | 14.4K | +14.3K |
| Oak Harvest Investment Services | New | 0 | 12.5K | +12.5K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 120.5K | 111.7K | -8.8K |
| Roubaix Capital, LLC | Increased | 55.4K | 64.0K | +8.5K |
| Creative Planning | Increased | 12.4K | 19.2K | +6.8K |
| Inspire Investing, LLC | New | 0 | 6.6K | +6.6K |
| DekaBank Deutsche Girozentrale | New | 0 | 6.5K | +6.5K |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | 30.8K | 25.6K | -5.3K |
| AXXCESS WEALTH MANAGEMENT, LLC | Sold Out | 4.8K | 0 | -4.8K |
| Marks Group Wealth Management, Inc | Increased | 14.0K | 18.8K | +4.8K |
| STRS OHIO | Increased | 12.3K | 16.9K | +4.6K |
| Auto-Owners Insurance Co | Sold Out | 4.5K | 0 | -4.5K |
| Jefferies Financial Group Inc. | Increased | 10.7K | 15.0K | +4.3K |
| State of Alaska, Department of Revenue | Reduced | 9.2K | 5.0K | -4.1K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | New | 0 | 3.3K | +3.3K |
| T3 Companies, LLC | New | 0 | 2.9K | +2.9K |
| State of Wyoming | Reduced | 16.4K | 13.9K | -2.5K |
| Abel Hall, LLC | New | 0 | 2.4K | +2.4K |
| XPONANCE LLC | New | 0 | 2.3K | +2.3K |
| Bank of New York Mellon Corp | Reduced | 143.8K | 141.6K | -2.2K |
| GAGNON SECURITIES LLC | Increased | 116.3K | 118.4K | +2.1K |
| PICTON MAHONEY ASSET MANAGEMENT | Increased | 50 | 2.0K | +2.0K |
| DEUTSCHE BANK AG\ | Reduced | 25.1K | 23.2K | -1.9K |
| Maryland State Retirement & Pension System | Increased | 3.5K | 5.3K | +1.9K |
| NKCFO LLC | New | 0 | 1.6K | +1.6K |
| Diversified Trust Co | Increased | 11.8K | 13.4K | +1.6K |
| Amundi | Reduced | 12.9K | 11.4K | -1.5K |
| ALPS ADVISORS INC | Reduced | 10.4K | 8.9K | -1.4K |
| Thrivent Financial for Lutherans | Reduced | 25.5K | 24.1K | -1.4K |
| Mirae Asset Global Investments Co., Ltd. | Sold Out | 1.4K | 0 | -1.4K |
| NISA INVESTMENT ADVISORS, LLC | Increased | 2.5K | 3.8K | +1.3K |
| RHUMBLINE ADVISERS | Reduced | 58.0K | 56.8K | -1.2K |
| Ethic Inc. | Reduced | 3.8K | 2.6K | -1.1K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | Reduced | 8.0K | 7.0K | -1.1K |
| Public Sector Pension Investment Board | Reduced | 95.6K | 94.6K | -1.0K |
| Leonteq Securities AG | Reduced | 3.0K | 2.0K | -1.0K |
| CenterBook Partners LP | Increased | 5.9K | 6.9K | +996 |
| BANK OF MONTREAL /CAN/ | Increased | 4.5K | 5.5K | +963 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | Increased | 11.7K | 12.6K | +952 |
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.