Proto Labs Inc
PRLB- Exchange
- NYSE
- Industry
- Fabricated Structural Metal Products
- SEC CIK
- 0001443669
In the last 90 days, Proto Labs Inc insiders filed 0 open-market purchases and 2 sales; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.83B in total; ARK Invest is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Proto Labs Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 263
- +33 vs. Q4 2025
- Shares held
- 22.1M
- +3.00M (+15.7%) vs. Q4 2025
- Total value
- $1.26B
- +$293.1M (+30.3%) vs. Q4 2025
- New holders
- 53
- 75 more added
- Sold out
- 20
- 80 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PRLB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 277 | $1.83B |
| Q1 2026 | 263 | $1.26B |
| Q4 2025 | 234 | $1.10B |
| Q3 2025 | 213 | $1.09B |
| Q2 2025 | 202 | $866.4M |
| Q1 2025 | 188 | $764.5M |
| Q4 2024 | 199 | $837.2M |
| Q3 2024 | 193 | $634.3M |
| Q2 2024 | 204 | $662.3M |
| Q1 2024 | 203 | $774.1M |
| Q4 2023 | 219 | $845.8M |
| Q3 2023 | 185 | $571.4M |
| Q2 2023 | 193 | $775.6M |
| Q1 2023 | 199 | $745.6M |
| Q4 2022 | 199 | $593.9M |
| Q3 2022 | 210 | $881.5M |
| Q2 2022 | 227 | $1.16B |
| Q1 2022 | 236 | $1.31B |
| Q4 2021 | 245 | $1.31B |
| Q3 2021 | 264 | $1.89B |
| Q2 2021 | 273 | $2.65B |
| Q1 2021 | 316 | $3.49B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Proto Labs Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mariner, LLC | 5,094 | $290.4K | 0.00% | +567+12.5% | Added |
| Man Group plc | 5,114 | $291.6K | 0.00% | +5,114 | New |
| Fifth Third Bancorp | 5,129 | $292.5K | 0.00% | +4,988+3,537.6% | Added |
| Cornerstone Investment Partners, LLC | 5,235 | $298.5K | 0.01% | +1,190+29.4% | Added |
| Barclays PLC | 5,269 | $300.4K | 0.00% | −32,880−86.2% | Reduced |
| Quadrant Capital Group LLC | 5,286 | $301.4K | 0.01% | 00.0% | Unchanged |
| Vanguard Investments Australia, Ltd. | 5,397 | $307.7K | 0.00% | +5,397 | New |
| Oregon Public Employees Retirement Fund | 5,457 | $311.2K | 0.00% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 5,640 | $321.6K | 0.00% | +5,640 | New |
| Pacer Advisors, Inc. | 5,653 | $322.0K | 0.00% | +2,407+74.2% | Added |
| Russell Investments Group, Ltd. | 5,704 | $325.2K | 0.00% | +3,433+151.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 5,856 | $333.9K | 0.00% | −6−0.1% | Reduced |
| Teachers Retirement System of the State of Kentucky | 6,120 | $349.0K | 0.00% | 00.0% | Unchanged |
| Algert Global LLC | 6,325 | $360.7K | 0.01% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 6,359 | $362.6K | 0.00% | −131−2.0% | Reduced |
| SG Americas Securities, LLC | 6,429 | $367.0K | 0.00% | −23,726−78.7% | Reduced |
| Arizona State Retirement System | 6,503 | $370.8K | 0.00% | −150−2.3% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 6,624 | $377.7K | 0.00% | +616+10.3% | Added |
| Ieq Capital, LLC | 6,788 | $387.1K | 0.00% | +633+10.3% | Added |
| Amalgamated Bank | 6,822 | $389.0K | 0.00% | −110−1.6% | Reduced |
| Independent Financial Group, LLC | 6,915 | $394.3K | 0.01% | +6,915 | New |
| Mercer Global Advisors Inc | 6,966 | $397.2K | 0.00% | +1,076+18.3% | Added |
| Janney Montgomery Scott LLC | 7,233 | $412.0K | 0.00% | −617−7.9% | Reduced |
| State Board of Administration of Florida Retirement System | 7,559 | $431.0K | 0.00% | 00.0% | Unchanged |
| Winton Group Ltd | 7,564 | $431.3K | 0.02% | +7,564 | New |
| Bridgewater Associates, LP | 7,690 | $438.5K | 0.00% | +7,690 | New |
| New York State Common Retirement Fund | 7,888 | $449.8K | 0.00% | +369+4.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,046 | $458.8K | 0.00% | +2,590+47.5% | Added |
| Argos Wealth Advisors, LLC | 8,173 | $466.0K | 0.13% | 00.0% | Unchanged |
| Jackson Creek Investment Advisors LLC | 8,390 | $478.0K | 0.14% | −15−0.2% | Reduced |
| SEI Investments Co | 8,819 | $502.9K | 0.00% | +8,819 | New |
| Allianz Asset Management GmbH | 9,115 | $519.7K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 9,537 | $543.8K | 0.00% | −405−4.1% | Reduced |
| Truvestments Capital LLC | 9,699 | $553.0K | 0.10% | −1,407−12.7% | Reduced |
| Canada Pension Plan Investment Board | 9,700 | $553.1K | 0.00% | −3,000−23.6% | Reduced |
| RBF Capital, LLC | 10,000 | $570.2K | 0.03% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 10,325 | $588.7K | 0.02% | +10,325 | New |
| Vanguard Global Advisers, LLC | 10,439 | $595.2K | 0.00% | +10,439 | New |
| Louisiana State Employees Retirement System | 10,500 | $598.7K | 0.01% | −300−2.8% | Reduced |
| CI Private Wealth, LLC | 10,704 | $610.3K | 0.00% | +10,704 | New |
| Simplex Trading, LLC | 10,779 | $614.6K | 0.02% | +10,779 | New |
| State of Wisconsin Investment Board | 10,840 | $618.1K | 0.00% | −2,419−18.2% | Reduced |
| Gotham Asset Management, LLC | 10,973 | $625.7K | 0.00% | −197−1.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 11,156 | $636.1K | 0.00% | −1,351−10.8% | Reduced |
| Round Rock Advisors, LLC | 11,219 | $639.7K | 0.10% | 00.0% | Unchanged |
| Creative Planning | 11,509 | $656.2K | 0.00% | +2,315+25.2% | Added |
| New York State Teachers Retirement System | 11,536 | $658.0K | 0.00% | −11,952−50.9% | Reduced |
| Wells Fargo & Company | 11,723 | $668.4K | 0.00% | −18,251−60.9% | Reduced |
| Diversified Trust Co | 11,795 | $672.5K | 0.01% | +1,300+12.4% | Added |
| Marks Group Wealth Management, Inc | 12,052 | $687.2K | 0.07% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,060 | $687.7K | 0.00% | +12,060 | New |
| Horizon Investments, LLC | 12,111 | $690.6K | 0.01% | +225+1.9% | Added |
| Legato Capital Management LLC | 12,113 | $690.7K | 0.06% | +12,113 | New |
| Janus Henderson Group PLC | 12,160 | $692.9K | 0.00% | −68−0.6% | Reduced |
| Two Sigma Investments, LP | 12,200 | $695.6K | 0.00% | +12,200 | New |
| BNP Paribas Arbitrage, SA | 12,591 | $717.9K | 0.00% | +4,476+55.2% | Added |
| Summit Global Investments | 12,720 | $725.0K | 0.04% | +3,370+36.0% | Added |
| Illinois Municipal Retirement Fund | 12,871 | $733.9K | 0.01% | +300+2.4% | Added |
| State of Alaska, Department of Revenue | 13,008 | $741.0K | 0.01% | −272−2.0% | Reduced |
| Royal Bank of Canada | 13,059 | $745.0K | 0.00% | −3,568−21.5% | Reduced |
| STRS Ohio | 13,200 | $752.7K | 0.00% | −800−5.7% | Reduced |
| KLP Kapitalforvaltning AS | 13,400 | $764.1K | 0.00% | +8,300+162.7% | Added |
| MetLife Investment Management | 13,411 | $764.7K | 0.00% | −126−0.9% | Reduced |
| Haven Private, LLC | 13,715 | $782.0K | 0.34% | +5,402+65.0% | Added |
| Bailard, Inc. | 13,981 | $797.2K | 0.02% | +700+5.3% | Added |
| Amundi | 14,082 | $803.0K | 0.00% | +2,031+16.9% | Added |
| Alps Advisors Inc | 14,160 | $807.4K | 0.00% | −3,553−20.1% | Reduced |
| Dark Forest Capital Management LP | 14,248 | $812.4K | 0.07% | −1,695−10.6% | Reduced |
| Engineers Gate Manager LP | 14,500 | $826.8K | 0.01% | −233−1.6% | Reduced |
| Gabelli & Co Investment Advisers, Inc. | 14,500 | $826.8K | 0.12% | 00.0% | Unchanged |
| Vanguard Asset Management, Ltd | 14,662 | $836.0K | 0.00% | +14,662 | New |
| Campbell & CO Investment Adviser LLC | 15,188 | $866.0K | 0.05% | −26,332−63.4% | Reduced |
| Citigroup Inc | 15,208 | $867.2K | 0.00% | −105−0.7% | Reduced |
| HSBC Holdings PLC | 15,378 | $867.3K | 0.00% | +1,754+12.9% | Added |
| Toroso Investments, LLC | 15,558 | $887.1K | 0.00% | +2,561+19.7% | Added |
| Captrust Financial Advisors | 15,800 | $900.9K | 0.00% | −49−0.3% | Reduced |
| Thrivent Financial for Lutherans | 15,805 | $901.0K | 0.00% | −466−2.9% | Reduced |
| XTX Topco Ltd | 15,873 | $905.1K | 0.02% | +15,873 | New |
| State of Tennessee, Treasury Department | 17,728 | $1.01M | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 18,081 | $1.03M | 0.00% | +18,081 | New |
| Alliancebernstein L.P. | 20,740 | $1.05M | 0.00% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 19,015 | $1.08M | 0.04% | +19,015 | New |
| Great West Life Assurance Co | 19,845 | $1.13M | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 20,782 | $1.18M | 0.05% | +20,782 | New |
| Teacher Retirement System of Texas | 20,920 | $1.19M | 0.00% | −3,439−14.1% | Reduced |
| Gabelli Funds LLC | 21,132 | $1.20M | 0.01% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 21,267 | $1.21M | 0.01% | +21,267 | New |
| Bridgeway Capital Management, LLC | 22,000 | $1.25M | 0.03% | −91,876−80.7% | Reduced |
| California State Teachers Retirement System | 22,967 | $1.31M | 0.00% | −177−0.8% | Reduced |
| Virginia Retirement Systems Et Al | 23,000 | $1.31M | 0.01% | −400−1.7% | Reduced |
| Acadian Asset Management LLC | 24,497 | $1.39M | 0.00% | −4,971−16.9% | Reduced |
| Millennium Management LLC | 25,829 | $1.47M | 0.00% | −75,703−74.6% | Reduced |
| Quantinno Capital Management LP | 27,716 | $1.58M | 0.00% | +13,781+98.9% | Added |
| Bastion Asset Management Inc. | 28,270 | $1.60M | 0.49% | +28,270 | New |
| Deutsche Bank AG | 30,070 | $1.71M | 0.00% | +2,302+8.3% | Added |
| Voya Investment Management LLC | 30,139 | $1.72M | 0.00% | −79−0.3% | Reduced |
| Federated Hermes, Inc. | 31,371 | $1.79M | 0.00% | +623+2.0% | Added |
| Integrated Quantitative Investments LLC | 31,505 | $1.80M | 0.33% | +31,505 | New |
| Point72 Asset Management, L.P. | 32,389 | $1.85M | 0.00% | −7,518−18.8% | Reduced |
| Price T Rowe Associates Inc | 33,169 | $1.89M | 0.00% | +5,135+18.3% | Added |