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PRLB

Proto Labs Inc
$76.40 -2.34 (-2.97%) At close · Jul 2
Market Cap
$1.82B
Shares
23,794,045

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 262
Total Value: $1,178,919,578
Total Shares: 20,675,350
Showing 1–100 of 265 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Superinvestors Holding PRLB

All superinvestors →
Joel Greenblatt $625,680 Ray Dalio $438,483

Holder Concentration

Across 262 13F filers
Top Holder
17.8%
Jun 2023 → Mar 2026 · range 16.6% – 20.4%
of institutional value
Top 5
46.3%
Jun 2023 → Mar 2026 · range 46.3% – 53.7%
of institutional value
Top 10
59.3%
Jun 2023 → Mar 2026 · range 59.3% – 67.7%
of institutional value
HHI
622
Jun 2023 → Mar 2026 · range 622 – 780
Broadly held
Showing 100 of 265
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $209,712,424 17.79% 3,677,875
Mid DISCIPLINED GROWTH INVESTORS INC /MN $142,399,182 12.08% 2,497,355
Mega DIMENSIONAL FUND ADVISORS LP $72,549,737 6.15% 1,272,356
Mega STATE STREET CORP $62,265,840 5.28% 1,092,000
Mega VANGUARD CAPITAL MANAGEMENT LLC $59,286,031 5.03% 1,039,741
Mid AMERICAN CAPITAL MANAGEMENT INC $35,791,739 3.04% 627,705
Mega GEODE CAPITAL MANAGEMENT, LLC $33,083,060 2.81% 580,201
Large RENAISSANCE TECHNOLOGIES LLC $29,664,712 2.52% 520,251
Mid Rubric Capital Management LP $27,734,528 2.35% 486,400
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $26,444,735 2.24% 463,780
Mega FMR LLC $24,082,738 2.04% 422,356
Large PRUDENTIAL FINANCIAL INC $22,821,741 1.94% 400,241
Large Driehaus Capital Management LLC $21,048,134 1.79% 369,136
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $20,538,775 1.74% 360,203
Mega Nuveen, LLC $18,071,860 1.53% 316,939
Small S SQUARED TECHNOLOGY, LLC $16,883,793 1.43% 296,103
Mega MORGAN STANLEY $16,739,984 1.42% 293,581
Mega NORTHERN TRUST CORP Bank $15,221,544 1.29% 266,951
Mega D. E. Shaw & Co., Inc. $12,866,620 1.09% 225,651
Mega NORDEA INVESTMENT MANAGEMENT AB $12,224,003 1.04% 214,381
Large JUPITER ASSET MANAGEMENT LTD $11,109,320 0.94% 194,832
Large PANAGORA ASSET MANAGEMENT INC $9,961,279 0.84% 174,698
Mid Hillsdale Investment Management Inc. $9,943,375 0.84% 174,384
Mega UBS Group AG $9,622,124 0.82% 168,750
Mega VANGUARD FIDUCIARY TRUST CO Bank $8,757,188 0.74% 153,581
Large Qube Research & Technologies Ltd $8,474,426 0.72% 148,622
Mega GOLDMAN SACHS GROUP INC $8,036,569 0.68% 140,943
Mega Bank of New York Mellon Corp Bank $7,978,063 0.68% 139,917
Mega PRINCIPAL FINANCIAL GROUP INC $7,618,612 0.65% 133,613
Mega BANK OF AMERICA CORP /DE/ Bank $7,362,022 0.62% 129,113
Large Connor, Clark & Lunn Investment Management Ltd. $7,156,580 0.61% 125,510
Mid RICE HALL JAMES & ASSOCIATES, LLC $6,476,844 0.55% 113,589
Small GAGNON SECURITIES LLC Broker-Dealer $6,322,890 0.54% 110,889
Large Public Sector Pension Investment Board Pension $6,019,031 0.51% 105,560
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $5,702,000 0.48% 100,000
Large LAZARD ASSET MANAGEMENT LLC $5,663,967 0.48% 99,333
Mega FIRST TRUST ADVISORS LP $5,295,447 0.45% 92,870
Mega Invesco Ltd. $5,050,601 0.43% 88,576
Mega JPMORGAN CHASE & CO $4,993,752 0.42% 87,579
Mega AMERICAN CENTURY COMPANIES INC $4,495,570 0.38% 78,842
Large Trexquant Investment LP $3,916,589 0.33% 68,688
Large MARSHALL WACE, LLP $3,897,602 0.33% 68,355
Small Informed Momentum Co LLC $3,753,227 0.32% 65,823
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $3,748,548 0.32% 65,741
Mega RHUMBLINE ADVISERS $3,712,800 0.31% 65,114
Mid Polar Asset Management Partners Inc. $3,442,240 0.29% 60,369
Mega AMERIPRISE FINANCIAL INC $3,337,892 0.28% 58,539
Mega Legal & General Group Plc $3,330,023 0.28% 58,401
Mega JANE STREET GROUP, LLC $3,270,381 0.28% 57,355
Mega FRANKLIN RESOURCES INC $3,247,801 0.28% 56,959
Mega AQR CAPITAL MANAGEMENT LLC $3,142,769 0.27% 55,117
Small HUSSMAN STRATEGIC ADVISORS, INC. $2,993,550 0.25% 52,500
Small Archon Capital Management LLC $2,765,470 0.23% 48,500
Large ZACKS INVESTMENT MANAGEMENT $2,713,353 0.23% 47,586
Mega Swiss National Bank Bank $2,685,642 0.23% 47,100
Mid GSA CAPITAL PARTNERS LLP $2,677,659 0.23% 46,960
Large Assenagon Asset Management S.A. $2,667,167 0.23% 46,776
Large ARK Investment Management LLC $2,606,042 0.22% 45,704
Mega CITADEL ADVISORS LLC $2,538,416 0.22% 44,518
Large Squarepoint Ops LLC $2,356,066 0.20% 41,320
Mid INTECH INVESTMENT MANAGEMENT LLC $2,222,126 0.19% 38,971
Small AIMZ Investment Advisors, LLC $2,208,270 0.19% 38,728
Large POLEN CAPITAL MANAGEMENT LLC $2,143,609 0.18% 37,594
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,891,296 0.16% 33,169
Large Point72 Asset Management, L.P. $1,846,820 0.16% 32,389
Small Integrated Quantitative Investments LLC $1,796,415 0.15% 31,505
Large FEDERATED HERMES, INC. $1,788,774 0.15% 31,371
Large VOYA INVESTMENT MANAGEMENT LLC $1,718,525 0.15% 30,139
Mega DEUTSCHE BANK AG\ Bank $1,714,591 0.15% 30,070
Small Bastion Asset Management Inc. $1,611,955 0.14% 28,270
Large Quantinno Capital Management LP $1,580,366 0.13% 27,716
Mega MILLENNIUM MANAGEMENT LLC $1,472,769 0.12% 25,829
Large ACADIAN ASSET MANAGEMENT LLC $1,396,818 0.12% 24,497
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,328,566 0.11% 23,300
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,309,578 0.11% 22,967
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $1,254,440 0.11% 22,000
Mid GILDER GAGNON HOWE & CO LLC $1,212,644 0.10% 21,267
Large GABELLI FUNDS LLC $1,204,946 0.10% 21,132
Large TEACHER RETIREMENT SYSTEM OF TEXAS Pension $1,192,858 0.10% 20,920
Mid Quantbot Technologies LP $1,184,989 0.10% 20,782
Mega ALLIANCEBERNSTEIN L.P. $1,182,594 0.10% 20,740
Large CANADA LIFE ASSURANCE Co Insurance $1,131,561 0.10% 19,845
Mid Edgestream Partners, L.P. $1,084,235 0.09% 19,015
Large HRT FINANCIAL LP $1,030,978 0.09% 18,081
Large State of Tennessee, Department of Treasury $1,010,850 0.09% 17,728
Mid XTX Topco Ltd $905,078 0.08% 15,873
Large Thrivent Financial for Lutherans $901,201 0.08% 15,805
Large CAPTRUST FINANCIAL ADVISORS $900,916 0.08% 15,800
Large Tidal Investments LLC $887,117 0.08% 15,558
Mega HSBC HOLDINGS PLC $876,853 0.07% 15,378
Mega CITIGROUP INC $867,159 0.07% 15,208
Mid Campbell & CO Investment Adviser LLC $866,019 0.07% 15,188
Mega VANGUARD ASSET MANAGEMENT, Ltd $836,027 0.07% 14,662
Mid Engineers Gate Manager LP $826,790 0.07% 14,500
Small GABELLI & Co INVESTMENT ADVISERS, INC. $826,790 0.07% 14,500
Mid DARK FOREST CAPITAL MANAGEMENT LP $812,420 0.07% 14,248
Large ALPS ADVISORS INC $807,403 0.07% 14,160
Mega Amundi $802,955 0.07% 14,082
Mid BAILARD, INC. $797,196 0.07% 13,981
Micro Haven Private, LLC $782,029 0.07% 13,715
Key facts CIK 1443669 CUSIP 743713109 13F (30d) 11 filings 5 filers Visit website Investor relations

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