PROTO LABS INC (PRLB)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
256
Reporting holders
$1.8B
Reported value
94.5%
Of shares outstanding
0.2%
Held as options
+13
Holder change
Institutions report 22,614,818 shares against 23,921,897 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $317.6M | 3,896,222 | 0.00% | 8q | +5.9%+$17.8M |
| DISCIPLINED GROWTH INVESTORS INC /MN | $194.0M | 2,380,514 | 3.29% | 31q | -4.7%-$9.5M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $130.4M | 1,599,765 | 0.01% | 2q | +4.0%+$5.0M |
| DIMENSIONAL FUND ADVISORS LP | $93.9M | 1,152,305 | 0.02% | 31q | -9.4%-$9.8M |
| STATE STREET CORP | $92.8M | 1,138,462 | 0.00% | 31q | +4.3%+$3.8M |
| VANGUARD CAPITAL MANAGEMENT LLC | $86.0M | 1,054,623 | 0.00% | 2q | +1.4%+$1.2M |
| AMERICAN CAPITAL MANAGEMENT INC | $50.5M | 619,845 | 2.27% | 6q | -1.3%-$640.7K |
| GEODE CAPITAL MANAGEMENT, LLC | $50.1M | 614,028 | 0.00% | 31q | +5.8%+$2.8M |
| RENAISSANCE TECHNOLOGIES LLC | $38.2M | 469,251 | 0.05% | 22q | -9.8%-$4.2M |
| PRUDENTIAL FINANCIAL INC | $37.3M | 457,810 | 0.04% | 31q | +14.4%+$4.7M |
| FMR LLC | $36.1M | 442,659 | 0.00% | 31q | +4.8%+$1.7M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $35.9M | 440,816 | 0.02% | 11q | -5.0%-$1.9M |
| Nuveen, LLC | $34.2M | 420,059 | 0.01% | 6q | +32.5%+$8.4M |
| GOLDMAN SACHS GROUP INC | $32.9M | 403,179 | 0.00% | 31q | +186.1%+$21.4M |
| Driehaus Capital Management LLC | $30.2M | 370,151 | 0.17% | 3q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $28.9M | 354,188 | 0.00% | 31q | -1.7%-$490.3K |
| Sixth Street Partners Management Company, L.P. | $28.9M | 354,188 | 0.00% | new | NEW |
| MORGAN STANLEY | $25.7M | 314,778 | 0.00% | 35q | +7.2%+$1.7M |
| S SQUARED TECHNOLOGY, LLC | $23.5M | 288,120 | 7.29% | 13q | -2.7%-$650.7K |
| NORTHERN TRUST CORP | $23.2M | 284,562 | 0.00% | 31q | +6.6%+$1.4M |
| FIRST TRUST ADVISORS LP | $18.3M | 224,792 | 0.01% | 31q | +142.1%+$10.8M |
| JPMORGAN CHASE & CO | $17.9M | 224,717 | 0.00% | 31q | +156.6%+$10.9M |
| D. E. Shaw & Co., Inc. | $17.2M | 211,366 | 0.01% | 31q | -6.3%-$1.2M |
| NORDEA INVESTMENT MANAGEMENT AB | $16.5M | 203,883 | 0.01% | 14q | -4.9%-$849.9K |
| Hillsdale Investment Management Inc. | $15.6M | 191,594 | 0.36% | 11q | +9.9%+$1.4M |
| Public Sector Pension Investment Board | $15.6M | 191,290 | 0.02% | 31q | +81.2%+$7.0M |
| JUPITER ASSET MANAGEMENT LTD | $15.4M | 188,539 | 0.08% | 16q | -3.2%-$512.9K |
| PANAGORA ASSET MANAGEMENT INC | $14.7M | 180,713 | 0.05% | 17q | +3.4%+$490.3K |
| VANGUARD FIDUCIARY TRUST CO | $12.9M | 157,987 | 0.00% | 2q | +2.9%+$359.1K |
| JANE STREET GROUP, LLC | $12.3M | 143,527 | 0.00% | 9q | +150.2%+$7.4M |
| Bank of New York Mellon Corp | $11.7M | 143,782 | 0.00% | 31q | +2.8%+$315.0K |
| PRINCIPAL FINANCIAL GROUP INC | $11.0M | 135,136 | 0.01% | 31q | +1.1%+$124.1K |
| BANK OF AMERICA CORP /DE/ | $10.3M | 125,997 | 0.00% | 31q | -2.4%-$254.0K |
| Connor, Clark & Lunn Investment Management Ltd. | $9.8M | 120,473 | 0.02% | 20q | -4.0%-$410.6K |
| GAGNON SECURITIES LLC | $9.5M | 116,283 | 1.83% | 30q | +4.9%+$439.7K |
| RICE HALL JAMES & ASSOCIATES, LLC | $8.9M | 108,964 | 0.43% | 7q | -4.1%-$377.0K |
| Rubric Capital Management LP | $8.9M | 108,692 | 0.08% | 6q | -77.7%-$30.8M |
| Invesco Ltd. | $8.8M | 108,421 | 0.00% | 31q | +22.4%+$1.6M |
| CITADEL ADVISORS LLC | $8.1M | 88,625 | 0.00% | 31q | +99.1%+$4.0M |
| UBS Group AG | $7.9M | 97,304 | 0.00% | 31q | -42.3%-$5.8M |
| MILLENNIUM MANAGEMENT LLC | $7.6M | 92,960 | 0.00% | 5q | +259.9%+$5.5M |
| AMERICAN CENTURY COMPANIES INC | $6.4M | 79,056 | 0.00% | 14q | HELD |
| AMERIPRISE FINANCIAL INC | $5.7M | 69,786 | 0.00% | 31q | -40.4%-$3.9M |
| Edgestream Partners, L.P. | $5.4M | 65,799 | 0.16% | 2q | +246.0%+$3.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $5.3M | 65,044 | 0.00% | 31q | -1.1%-$56.8K |
| Informed Momentum Co LLC | $5.3M | 64,803 | 0.47% | 2q | -1.5%-$83.1K |
| RHUMBLINE ADVISERS | $4.7M | 57,970 | 0.00% | 31q | -11.0%-$582.3K |
| Legal & General Group Plc | $4.6M | 56,739 | 0.00% | 31q | -2.8%-$135.5K |
| Roubaix Capital, LLC | $4.5M | 55,415 | 1.62% | new | NEW |
| FRANKLIN RESOURCES INC | $4.5M | 55,096 | 0.00% | 10q | -3.3%-$151.9K |
| AQR CAPITAL MANAGEMENT LLC | $4.3M | 53,319 | 0.00% | 24q | -3.3%-$146.6K |
| ZACKS INVESTMENT MANAGEMENT | $4.3M | 52,989 | 0.03% | 3q | +11.4%+$440.4K |
| Swiss National Bank | $3.9M | 47,700 | 0.00% | 31q | +1.3%+$48.9K |
| INTECH INVESTMENT MANAGEMENT LLC | $3.7M | 45,776 | 0.03% | 8q | +17.5%+$554.7K |
| Campbell & CO Investment Adviser LLC | $3.5M | 42,798 | 0.18% | 5q | +181.8%+$2.3M |
| HUSSMAN STRATEGIC ADVISORS, INC. | $3.4M | 42,000 | 0.79% | 2q | -20.0%-$855.9K |
| AIMZ Investment Advisors, LLC | $3.2M | 38,728 | 0.87% | 19q | HELD |
| Point72 Asset Management, L.P. | $3.0M | 37,033 | 0.00% | 3q | +14.3%+$378.5K |
| ALGERT GLOBAL LLC | $3.0M | 36,695 | 0.04% | 18q | +190.1%+$2.0M |
| BNP PARIBAS FINANCIAL MARKETS | $3.0M | 36,457 | 0.00% | 31q | +189.5%+$1.9M |
| ARK Investment Management LLC | $2.9M | 35,418 | 0.02% | 31q | -22.5%-$838.4K |
| POLEN CAPITAL MANAGEMENT LLC | $2.9M | 35,011 | 0.02% | 3q | -6.9%-$210.5K |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $2.8M | 33,760 | 0.05% | 2q | +227.0%+$1.9M |
| ExodusPoint Capital Management, LP | $2.7M | 33,683 | 0.02% | new | NEW |
| Quantinno Capital Management LP | $2.7M | 32,730 | 0.00% | 5q | +18.1%+$408.7K |
| FEDERATED HERMES, INC. | $2.6M | 32,144 | 0.00% | 19q | +2.5%+$63.0K |
| CITIGROUP INC | $2.6M | 31,308 | 0.00% | 31q | +105.9%+$1.3M |
| AEGON ASSET MANAGEMENT UK Plc | $2.5M | 31,000 | 0.03% | new | NEW |
| VOYA INVESTMENT MANAGEMENT LLC | $2.5M | 30,839 | 0.00% | 31q | +2.3%+$57.1K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $2.2M | 27,000 | 0.04% | 15q | +22.7%+$407.6K |
| Engineers Gate Manager LP | $2.2M | 26,780 | 0.03% | 4q | +84.7%+$1.0M |
| DEUTSCHE BANK AG\ | $2.0M | 25,119 | 0.00% | 34q | -16.5%-$403.6K |
| WELLS FARGO & COMPANY/MN | $2.0M | 24,633 | 0.00% | 31q | +5.1%+$96.8K |
| HSBC HOLDINGS PLC | $2.0M | 24,699 | 0.00% | 5q | +60.6%+$756.6K |
| Assenagon Asset Management S.A. | $2.0M | 24,476 | 0.00% | 9q | -47.7%-$1.8M |
| SEI INVESTMENTS CO | $2.0M | 24,075 | 0.00% | 2q | +173.0%+$1.2M |
| Corient Private Wealth LP | $1.7M | 21,382 | 0.00% | 2q | +99.8%+$870.4K |
| GILDER GAGNON HOWE & CO LLC | $1.7M | 21,274 | 0.02% | 2q | HELD |
| GABELLI FUNDS LLC | $1.7M | 21,132 | 0.01% | 21q | HELD |
| SG Capital Management LLC | $1.6M | 20,068 | 0.14% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.6M | 3,446 | 0.00% | 31q | -71.4%-$4.1M |
| ALLIANCEBERNSTEIN L.P. | $1.6M | 27,640 | 0.00% | 31q | +33.3%+$393.4K |
| TEACHER RETIREMENT SYSTEM OF TEXAS | $1.5M | 18,885 | 0.00% | 11q | -9.7%-$165.9K |
| MERCER GLOBAL ADVISORS INC /ADV | $1.5M | 18,202 | 0.00% | 4q | +161.3%+$915.9K |
| Russell Investments Group, Ltd. | $1.5M | 18,166 | 0.00% | 14q | +218.5%+$1.0M |
| Louisiana State Employees Retirement System | $1.4M | 20,900 | 0.01% | 31q | +99.0%+$719.7K |
| MARSHALL WACE, LLP | $1.4M | 16,921 | 0.00% | 2q | -75.2%-$4.2M |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.4M | 16,856 | 0.00% | 2q | +15.0%+$178.8K |
| Squarepoint Ops LLC | $1.3M | 16,439 | 0.00% | 2q | -60.2%-$2.0M |
| State of Wyoming | $1.3M | 16,370 | 0.13% | 6q | +376.4%+$1.1M |
| CAPTRUST FINANCIAL ADVISORS | $1.3M | 15,935 | 0.00% | 12q | +0.9%+$11.0K |
| Trexquant Investment LP | $1.2M | 14,219 | 0.01% | 3q | -79.3%-$4.4M |
| MetLife Investment Management, LLC | $1.1M | 14,086 | 0.01% | 32q | +5.0%+$55.0K |
| Marks Group Wealth Management, Inc | $1.1M | 13,991 | 0.10% | 20q | +16.1%+$158.0K |
| Jump Financial, LLC | $1.1M | 13,194 | 0.01% | new | NEW |
| State of Tennessee, Department of Treasury | $1.1M | 13,028 | 0.00% | 31q | -26.5%-$383.1K |
| Haven Private, LLC | $1.1M | 12,966 | 0.40% | 3q | -5.5%-$61.1K |
| Amundi | $1.1M | 12,941 | 0.00% | 16q | -8.1%-$93.0K |
| BAILARD, INC. | $1.0M | 12,881 | 0.02% | 6q | -7.9%-$89.7K |
| Illinois Municipal Retirement Fund | $1.0M | 12,869 | 0.01% | 12q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | DISCIPLINED GROWTH INVESTORS INC /MN | 10.0% |
| 2026-07-14 | 13G/A | Dimensional Fund Advisors LP | 4.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 256 | $1.8B | 22,614,818 | 40 | 89 | 77 | 0.2% |
| Q1 2026 | 243 | $1.3B | 21,905,623 | 46 | 68 | 67 | 0.7% |
| Q4 2025 | 217 | $1.1B | 21,583,816 | 37 | 66 | 65 | 0.3% |
| Q3 2025 | 195 | $1.1B | 21,749,484 | 29 | 57 | 65 | 0.2% |
| Q2 2025 | 188 | $862.8M | 21,573,760 | 30 | 55 | 68 | 0.3% |
| Q1 2025 | 175 | $766.5M | 21,794,829 | 22 | 53 | 59 | 0.8% |
| Q4 2024 | 182 | $839.1M | 21,175,607 | 24 | 48 | 67 | 1.5% |
| Q3 2024 | 177 | $635.0M | 21,583,785 | 17 | 60 | 65 | 0.5% |
| Q2 2024 | 188 | $658.2M | 21,232,075 | 23 | 58 | 66 | 0.7% |
| Q1 2024 | 182 | $823.4M | 22,905,661 | 19 | 52 | 64 | 0.9% |
| Q4 2023 | 193 | $866.2M | 22,159,260 | 32 | 42 | 75 | 0.7% |
| Q3 2023 | 166 | $558.4M | 21,157,928 | 15 | 49 | 54 | 0.4% |
| Q2 2023 | 173 | $762.0M | 21,727,313 | 17 | 37 | 64 | 0.7% |
| Q1 2023 | 172 | $733.5M | 22,003,322 | 24 | 44 | 56 | 0.9% |
| Q4 2022 | 160 | $529.1M | 20,625,100 | 36 | 54 | 40 | 0.8% |
| Q3 2022 | 200 | $888.6M | 24,272,384 | 19 | 73 | 60 | 0.7% |
| Q2 2022 | 219 | $1.2B | 24,712,608 | 25 | 65 | 80 | 0.9% |
| Q1 2022 | 227 | $1.3B | 24,694,844 | 26 | 61 | 90 | 1.6% |
| Q4 2021 | 234 | $1.4B | 25,480,690 | 34 | 80 | 80 | 3.2% |
| Q3 2021 | 260 | $1.9B | 28,276,385 | 33 | 83 | 85 | 2.9% |
| Q2 2021 | 273 | $2.7B | 28,757,569 | 37 | 109 | 70 | 2.9% |
| Q1 2021 | 316 | $3.5B | 28,561,479 | 61 | 97 | 109 | 2.0% |
| Q4 2020 | 307 | $4.9B | 31,011,361 | 59 | 74 | 106 | 2.1% |
| Q3 2020 | 276 | $4.0B | 30,079,147 | 33 | 89 | 92 | 1.5% |
| Q2 2020 | 279 | $3.4B | 30,095,890 | 67 | 76 | 76 | 1.0% |
| Q1 2020 | 233 | $2.4B | 31,141,357 | 25 | 82 | 68 | 0.5% |
| Q4 2019 | 248 | $2.9B | 28,238,648 | 24 | 72 | 80 | 0.3% |
| Q3 2019 | 245 | $2.8B | 27,027,499 | 26 | 90 | 62 | 0.4% |
| Q2 2019 | 243 | $3.0B | 25,704,658 | 23 | 81 | 69 | 1.8% |
| Q1 2019 | 268 | $2.6B | 24,872,424 | 29 | 88 | 74 | 0.9% |
| Q4 2018 | 272 | $2.9B | 25,505,130 | 6 | 5 | 3 | 1.0% |