Proto LabsPRLB
13F holders, Q1 2026 (March 31)263holders +29
47new positions
18sold out
9famous investors
$57.00avg. 13F price*
At the end of Q1 2026, 263 institutions reported holding Proto Labs Inc. (PRLB) in their 13F filings, up 29 from Q4 2025. 47 opened new positions and 18 sold out. The largest holders were BlackRock, Inc. ($209.7M), Disciplined Growth Investors Inc. ($142.4M) and Vanguard Portfolio Management LLC ($87.7M). 9 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cathie Wood (0.0% of ARK Investment Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Proto Labs Inc.
- CUSIP
- 743713109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 47 | $36.3M |
| Exits | 18 | $7.1M |
All 13F filers, Q4 2025 → Q1 2026: 1,803,882 shares bought and 1,551,490 shares sold, net +252,392 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 263 holders
| BlackRock, Inc. | 0.00% | Add +1.6% | 3,677,875 | $209.7M |
| Disciplined Growth Investors Inc. | 2.91% | Reduce -6.6% | 2,497,355 | $142.4M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,538,530 | $87.7M |
| Dimensional Fund Advisors LP | 0.02% | Reduce -0.3% | 1,272,356 | $72.5M |
| State Street Corp. | 0.00% | Add +0.3% | 1,092,000 | $62.3M |
| Vanguard Capital Management LLC | 0.00% | — | 1,039,741 | $59.3M |
| American Capital Management Inc. | 1.92% | Reduce -0.6% | 627,705 | $35.8M |
| Geode Capital Management, LLC | 0.00% | Add +3.9% | 580,201 | $33.1M |
| Renaissance Technologies | 0.05% | Add +5.4% | 520,251 | $29.7M |
| Rubric Capital Management LP | 0.34% | Reduce -56.7% | 486,400 | $27.7M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +0.7% | 463,780 | $26.4M |
| FMR LLC | 0.00% | Add +245.9% | 422,356 | $24.1M |
| Prudential Financial Inc. | 0.03% | Add +118.9% | 400,241 | $22.8M |
| Driehaus Capital Management LLC | 0.15% | Reduce -3.4% | 369,136 | $21.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.8% | 360,203 | $20.5M |
| Nuveen, LLC | 0.00% | Reduce -2.7% | 316,939 | $18.1M |
| S Squared Technology, LLC | 6.39% | Reduce -3.3% | 296,103 | $16.9M |
| Morgan Stanley | 0.00% | Reduce -3.9% | 293,581 | $16.7M |
| Northern Trust Corp. | 0.00% | Add +4.2% | 266,951 | $15.2M |
| D. E. Shaw & Co. | 0.01% | Add +6.0% | 225,651 | $12.9M |
| Nordea Investment Management AB | 0.01% | Reduce -4.5% | 214,381 | $12.0M |
| Jupiter Asset Management Ltd. | 0.06% | No change | 194,832 | $11.1M |
| Panagora Asset Management Inc. | 0.04% | Reduce -0.5% | 174,698 | $10.0M |
| Hillsdale Investment Management Inc. | 0.27% | Add +3.6% | 174,384 | $9.9M |
| UBS Group AG | 0.00% | Reduce -3.8% | 168,750 | $9.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 153,581 | $8.8M |
| Qube Research & Technologies Ltd | 0.01% | Add +894.1% | 148,622 | $8.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -12.2% | 140,943 | $8.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 139,917 | $8.0M |
| Principal Financial Group Inc. | 0.00% | Reduce -2.2% | 133,613 | $7.6M |
| Bank of America Corp. | 0.00% | Add +38.3% | 129,113 | $7.4M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Reduce -4.0% | 125,510 | $7.2M |
| Rice Hall James & Associates, LLC | 0.36% | Reduce -0.8% | 113,589 | $6.5M |
| Gagnon Securities LLC | 1.46% | Reduce -0.6% | 110,889 | $6.3M |
| Public Sector Pension Investment Board | 0.02% | Reduce -4.3% | 105,560 | $6.0M |
| Lazard Asset Management LLC | 0.01% | Add +31.4% | 99,333 | $5.7M |
| First Trust Advisors LP | 0.00% | Reduce -12.3% | 92,870 | $5.3M |
| Invesco Ltd. | 0.00% | Reduce -17.8% | 88,576 | $5.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -26.2% | 87,579 | $4.9M |
| American Century Companies Inc. | 0.00% | Reduce -0.4% | 78,842 | $4.5M |
| Trexquant Investment LP | 0.03% | Add +148.6% | 68,688 | $3.9M |
| Marshall Wace, LLP | 0.00% | New | 68,355 | $3.9M |
| Informed Momentum Co LLC | 0.43% | New | 65,823 | $3.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1.7% | 65,741 | $3.7M |
| Rhumbline Advisers | 0.00% | Add +0.6% | 65,114 | $3.7M |
| Polar Asset Management Partners Inc. | 0.11% | Reduce -27.6% | 60,369 | $3.4M |
| Ameriprise Financial Inc. | 0.00% | Add +20.2% | 58,539 | $3.3M |
| Legal & General Group Plc | 0.00% | Reduce -8.6% | 58,401 | $3.3M |
| Jane Street Group, LLC | 0.00% | Reduce -48.1% | 57,355 | $3.3M |
| Franklin Resources Inc. | 0.00% | Add +72.9% | 56,959 | $3.2M |
| AQR Capital Management | 0.00% | Add +7.5% | 55,117 | $3.1M |
| Hussman Strategic Advisors, Inc. | 0.65% | New | 52,500 | $3.0M |
| Archon Capital Management LLC | 1.56% | New | 48,500 | $2.8M |
| Zacks Investment Management | 0.02% | Add +641.7% | 47,586 | $2.7M |
| Swiss National Bank | 0.00% | No change | 47,100 | $2.7M |
| Gsa Capital Partners LLP | 0.17% | New | 46,960 | $2.7M |
| Assenagon Asset Management S.A. | 0.00% | Add +68.6% | 46,776 | $2.7M |
| ARK Investment Management | 0.02% | Reduce -19.5% | 45,704 | $2.6M |
| Citadel Advisors | 0.00% | Add +257.3% | 44,518 | $2.5M |
| Squarepoint Ops LLC | 0.01% | New | 41,320 | $2.4M |
| Intech Investment Management LLC | 0.02% | Add +289.5% | 38,971 | $2.2M |
| AIMZ Investment Advisors, LLC | 0.68% | Reduce -2.3% | 38,728 | $2.2M |
| Polen Capital Management LLC | 0.01% | Add +806.3% | 37,594 | $2.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +18.3% | 33,169 | $1.9M |
| Point72 Asset Management | 0.00% | Reduce -18.8% | 32,389 | $1.8M |
| Integrated Quantitative Investments LLC | 0.33% | New | 31,505 | $1.8M |
| Federated Hermes, Inc. | 0.00% | Add +2.0% | 31,371 | $1.8M |
| Voya Investment Management LLC | 0.00% | Reduce -0.3% | 30,139 | $1.7M |
| Deutsche Bank AG | 0.00% | Add +8.3% | 30,070 | $1.7M |
| Bastion Asset Management Inc. | 0.49% | New | 28,270 | $1.6M |
| Quantinno Capital Management LP | 0.00% | Add +98.9% | 27,716 | $1.6M |
| Millennium Management | 0.00% | Reduce -74.6% | 25,829 | $1.5M |
| Acadian Asset Management LLC | 0.00% | Reduce -16.9% | 24,497 | $1.4M |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.01% | Reduce -1.7% | 23,000 | $1.3M |
| California State Teachers Retirement System | 0.00% | Reduce -0.8% | 22,967 | $1.3M |
| Bridgeway Capital Management, LLC | 0.03% | Reduce -80.7% | 22,000 | $1.3M |
| Gilder Gagnon Howe & Co. LLC | 0.01% | New | 21,267 | $1.2M |
| Gabelli Funds LLC | 0.01% | No change | 21,132 | $1.2M |
| Teacher Retirement System of Texas | 0.01% | Reduce -14.1% | 20,920 | $1.2M |
| Quantbot Technologies LP | 0.05% | New | 20,782 | $1.2M |
| CANADA LIFE ASSURANCE Co | 0.00% | No change | 19,845 | $1.1M |
| Edgestream Partners, L.P. | 0.04% | New | 19,015 | $1.1M |
| Alliancebernstein L.P. | 0.00% | No change | 20,740 | $1.0M |
| HRT Financial LP | 0.00% | New | 18,081 | $1.0M |
| State of Tennessee, Department of Treasury | 0.00% | No change | 17,728 | $1.0M |
| XTX Topco Ltd | 0.02% | New | 15,873 | $905K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.9% | 15,805 | $901K |
| Captrust Financial Advisors | 0.00% | Reduce -0.3% | 15,800 | $901K |
| Tidal Investments LLC | 0.00% | Add +19.7% | 15,558 | $887K |
| HSBC Holdings PLC | 0.00% | Add +12.9% | 15,378 | $867K |
| Citigroup Inc. | 0.00% | Reduce -0.7% | 15,208 | $867K |
| Campbell & CO Investment Adviser LLC | 0.05% | Reduce -63.4% | 15,188 | $866K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 14,662 | $836K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.12% | No change | 14,500 | $827K |
| Engineers Gate Manager LP | 0.01% | Reduce -1.6% | 14,500 | $827K |
| Dark Forest Capital Management LP | 0.07% | Reduce -10.6% | 14,248 | $812K |
| Alps Advisors Inc. | 0.00% | Reduce -20.1% | 14,160 | $807K |
| Amundi | 0.00% | Add +16.9% | 14,082 | $803K |
| Bailard, Inc. | 0.02% | Add +5.3% | 13,981 | $797K |
| Haven Private, LLC | 0.34% | Add +65.0% | 13,715 | $782K |
"% of holder's portfolio" is PRLB's weight in each manager's 13F, not the share of Proto Labs Inc. the manager owns.