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Disclosery

PRLB PROTO LABS INC

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COM (common), issuer CIK 1443669

255 managers (263 13F filers) reported a position in PRLB shares at 2026-03-31, 22,096,880 shares in all. 47 filers opened a position and 20 filers sold out during the quarter.

Managers
255
13F filers
263
New
47
Added
75
Reduced
80
Sold out
20
Shares held by filers
22,096,880

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.3,677,875$210M<0.01%+58,87113F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding2,762,350$158MnewTimeline
DISCIPLINED GROWTH INVESTORS INC /MN2,497,355$142M2.91%-176,37413F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,272,356$72.5M0.02%-4,20513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,092,000$62.3M<0.01%+3,79413F-HRTimelineGroup
AMERICAN CAPITAL MANAGEMENT INC627,705$35.8M1.92%-3,60613F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC580,201$33.1M<0.01%+21,90113F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC520,251$29.7M0.05%+26,70013F-HRTimeline
Rubric Capital Management LP486,400$27.7M0.34%-636,93813F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …463,780$26.4M0.01%+3,16213F-HRTimelineGroup
FMR LLCin group FMR LLC422,356$24.1M<0.01%+300,25613F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC400,241$22.8M0.03%+217,41513F-HRTimelineGroup
Driehaus Capital Management LLC369,136$21M0.15%-13,01913F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co360,203$20.5M<0.01%-2,81013F-HRTimelineGroup
Nuveen, LLCin group TIAA316,939$18.1M<0.01%-8,81113F-HRTimelineGroup
S SQUARED TECHNOLOGY, LLC296,103$16.9M6.39%-10,00013F-HR/ATimeline
MORGAN STANLEYin group MORGAN STANLEY293,581$16.7M<0.01%-12,03113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP266,951$15.2M<0.01%+10,68313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding234,491$13.4M-5,568Timeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.225,651$12.9M0.01%+12,78313F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …214,381$12M0.01%-10,05813F-HRTimelineGroup
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD194,832$11.1M0.06%013F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC174,698$9.96M0.04%-88713F-HRTimeline
Hillsdale Investment Management Inc.174,384$9.94M0.27%+6,10013F-HRTimeline
Qube Research & Technologies Ltd148,622$8.47M0.01%+133,67213F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC140,943$8.04M<0.01%-19,66113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp139,917$7.98M<0.01%-3,07813F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC133,613$7.62M<0.01%-3,05713F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/129,113$7.36M<0.01%+35,78413F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…125,510$7.16M0.02%-5,25713F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC113,589$6.48M0.36%-97413F-HRTimeline
GAGNON SECURITIES LLCin group GAGNON SECURITIES LLC110,889$6.32M1.46%-65913F-HRTimelineGroup
Public Sector Pension Investment Board105,560$6.02M0.02%-4,79113F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC99,333$5.66M0.01%+23,75913F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP92,870$5.3M<0.01%-13,05913F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.88,576$5.05M<0.01%-19,12213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO87,579$4.85M<0.01%-31,05613F-HR/ATimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC78,842$4.5M<0.01%-30313F-HRTimelineGroup
Trexquant Investment LP68,688$3.92M0.03%+41,06113F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP68,355$3.9M<0.01%new13F-HRTimelineGroup
Informed Momentum Co LLC65,823$3.75M0.43%new13F-HRTimeline
RHUMBLINE ADVISERS65,114$3.71M<0.01%+39913F-HRTimeline
Polar Asset Management Partners Inc.60,369$3.44M0.08%-23,03313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC58,539$3.34M<0.01%+9,82213F-HR/ATimelineGroup
Legal & General Group Plcin group Legal & General Group Plc58,401$3.33M<0.01%-5,52613F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC57,355$3.27M<0.01%-53,24013F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources56,959$3.25M<0.01%+24,02213F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC55,117$3.14M<0.01%+3,85713F-HRTimelineGroup
HUSSMAN STRATEGIC ADVISORS, INC.52,500$2.99M0.65%new13F-HRTimeline
Archon Capital Management LLC48,500$2.77M1.56%new13F-HRTimeline
ZACKS INVESTMENT MANAGEMENT47,586$2.71M0.02%+41,17013F-HRTimeline
Swiss National Bank47,100$2.69M<0.01%013F-HRTimeline
GSA CAPITAL PARTNERS LLP46,960$2.68M0.17%new13F-HRTimeline
Assenagon Asset Management S.A.46,776$2.67M<0.01%+19,03113F-HRTimeline
ARK Investment Management LLCin group ARK Investment Management LLC45,704$2.61M0.02%-11,04013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC44,518$2.54M<0.01%+32,05713F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC41,320$2.36M0.01%new13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC38,971$2.22M0.02%+28,96613F-HRTimeline
AIMZ Investment Advisors, LLC38,728$2.21M0.68%-90013F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC37,594$2.14M0.01%+33,44613F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding35,632$2.03M0Timeline
PRICE T ROWE ASSOCIATES INC /MD/33,169$1.89M<0.01%+5,13513F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.32,389$1.85M<0.01%-7,51813F-HRTimelineGroup
Integrated Quantitative Investments LLC31,505$1.8M0.33%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.31,371$1.79M<0.01%+62313F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC30,139$1.72M<0.01%-7913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\30,070$1.71M<0.01%+2,30213F-HRTimelineGroup
Bastion Asset Management Inc.28,270$1.6M0.49%new13F-HRTimeline
Quantinno Capital Management LP27,716$1.58M<0.01%+13,78113F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC25,829$1.47M<0.01%-75,70313F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC24,497$1.39M<0.01%-4,97113F-HRTimelineGroup
VIRGINIA RETIREMENT SYSTEMS ET Al23,000$1.31M0.01%-40013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…22,967$1.31M<0.01%-17713F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding22,385$1.28MnewTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC22,000$1.25M0.03%-91,87613F-HRTimeline
GILDER GAGNON HOWE & CO LLC21,267$1.21M0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS20,920$1.19M<0.01%-3,43913F-HRTimeline
Quantbot Technologies LP20,782$1.18M0.05%new13F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co19,845$1.13M<0.01%013F-HRTimelineGroup
Edgestream Partners, L.P.19,015$1.08M0.04%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.20,740$1.05M<0.01%013F-HRTimeline
HRT FINANCIAL LP18,081$1.03M<0.01%new13F-HRTimeline
State of Tennessee, Department of Treas…17,728$1.01M<0.01%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd15,873$905K0.02%new13F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…15,805$901K<0.01%-46613F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS15,800$901K<0.01%-4913F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC15,558$887K<0.01%+2,56113F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC15,378$867K<0.01%+1,75413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC15,208$867K<0.01%-10513F-HRTimelineGroup
Campbell & CO Investment Adviser LLC15,188$866K0.05%-26,33213F-HRTimeline
Engineers Gate Manager LP14,500$827K0.01%-23313F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP14,248$812K0.07%-1,69513F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC14,160$807K<0.01%-3,55313F-HRTimelineGroup
Amundiin group Amundi14,082$803K<0.01%+2,03113F-HRTimelineGroup
BAILARD, INC.13,981$797K0.02%+70013F-HRTimeline
Haven Private, LLC13,715$782K0.34%+5,40213F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…13,411$765K<0.01%-12613F-HRTimelineGroup
KLP KAPITALFORVALTNING AS13,400$764K<0.01%+8,30013F-HRTimeline
STRS OHIO13,200$753K<0.01%-80013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA13,059$745K<0.01%-3,56813F-HRTimelineGroup
State of Alaska, Department of Revenue13,008$741K0.01%-27213F-HRTimeline
Illinois Municipal Retirement Fund12,871$734K0.01%+30013F-HRTimeline
Summit Global Investmentsin group Summit Global Investments12,720$725K0.04%+3,37013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS12,591$718K<0.01%+4,47613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP12,200$696K<0.01%new13F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson12,160$693K<0.01%-6813F-HR/ATimelineGroup
Legato Capital Management LLC12,113$691K0.06%new13F-HRTimeline
Horizon Investments, LLC12,111$691K0.01%+22513F-HRTimeline
Marks Group Wealth Management, Inc12,052$687K0.07%013F-HRTimeline
DIVERSIFIED TRUST CO11,795$673K0.01%+1,30013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN11,723$668K<0.01%-18,25113F-HR/ATimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…11,536$658K<0.01%-11,95213F-HRTimeline
Creative Planningin group Creative Planning11,509$656K<0.01%+2,31513F-HRTimelineGroup
Round Rock Advisors LLC11,219$640K0.1%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,156$636K<0.01%-1,35113F-HRTimelineGroup
Gotham Asset Management, LLC10,973$626K<0.01%-19713F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD10,840$618K<0.01%-2,41913F-HRTimeline
SIMPLEX TRADING, LLC10,779$615K0.02%new13F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP10,704$610K<0.01%new13F-HRTimelineGroup
Louisiana State Employees Retirement Sy…10,500$599K0.01%-30013F-HRTimeline
RBF Capital, LLC10,000$570K0.03%013F-HR/ATimeline
CANADA PENSION PLAN INVESTMENT BOARD9,700$553K<0.01%-3,00013F-HRTimeline
Truvestments Capital LLC9,699$553K0.1%-1,40713F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …9,537$544K<0.01%-40513F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE9,115$520K<0.01%013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO8,819$503K<0.01%new13F-HRTimelineGroup
Jackson Creek Investment Advisors LLC8,390$478K0.14%-1513F-HRTimeline
Argos Wealth Advisors, LLC8,173$466K0.13%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…8,046$459K<0.01%+2,59013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND7,888$450K<0.01%+36913F-HRTimeline
Bridgewater Associates, LP7,690$438K<0.01%new13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd7,564$431K0.02%new13F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…7,559$431K<0.01%013F-HRTimeline
Janney Montgomery Scott LLC7,233$412K<0.01%-61713F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV6,966$397K<0.01%+1,07613F-HRTimeline
INDEPENDENT FINANCIAL GROUP, LLC6,915$394K0.01%new13F-HR/ATimeline
AMALGAMATED BANK6,822$389K<0.01%-11013F-HRTimeline
IEQ CAPITAL, LLC6,788$387K<0.01%+63313F-HRTimeline
Police & Firemen's Retirement System of…6,624$378K<0.01%+61613F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM6,503$371K<0.01%-15013F-HRTimeline
SG Americas Securities, LLC6,429$367K<0.01%-23,72613F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC6,359$363K<0.01%-13113F-HRTimeline
ALGERT GLOBAL LLC6,325$361K0.01%013F-HR/ATimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…6,120$349K<0.01%013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…5,856$334K<0.01%-613F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…5,704$325K<0.01%+3,43313F-HRTimelineGroup
Pacer Advisors, Inc.5,653$322K<0.01%+2,40713F-HR/ATimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …5,640$322K<0.01%new13F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND5,457$311K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC5,286$301K0.01%013F-HR/ATimeline
BARCLAYS PLCin group BARCLAYS PLC5,269$300K<0.01%-32,88013F-HRTimelineGroup
Cornerstone Investment Partners, LLC5,235$298K0.01%+1,19013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…5,129$292K<0.01%+4,98813F-HRTimelineGroup
Man Group plcin group Man Group plc5,114$292K<0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC5,094$290K<0.01%+56713F-HRTimelineGroup
Centiva Capital, LP5,064$289K0.01%new13F-HRTimeline
Leonteq Securities AG5,000$285K0.02%013F-HRTimeline
Steward Partners Investment Advisory, L…5,000$285K<0.01%-3,00013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC4,874$278K<0.01%+22313F-HRTimelineGroup
Schonfeld Strategic Advisors LLC4,794$273K<0.01%new13F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd4,611$263K<0.01%new13F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC4,588$262K<0.01%+36713F-HRTimelineGroup
Auto-Owners Insurance Coin group Auto-Owners Insurance Co4,500$257K0.01%013F-HRTimelineGroup
ANGELES WEALTH MANAGEMENT, LLCin group ANGELES WEALTH MANAGEMENT, LLC4,490$256K0.01%new13F-HRTimelineGroup
Dynamic Technology Lab Private Ltd4,380$250K0.04%new13F-HRTimeline
MIRABELLA FINANCIAL SERVICES LLP4,296$245K0.02%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/4,216$240K<0.01%+23213F-HRTimelineGroup
LANARK FINANCIAL, INC.4,006$228K0.02%+3,10013F-HRTimeline
LPL Financial LLC3,934$224K<0.01%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC3,906$223K0.02%-1,43613F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…3,847$219K<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…3,774$215K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC3,702$211K<0.01%-92413F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC3,699$211K<0.01%new13F-HRTimeline
HighTower Advisors, LLC3,611$206K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC3,486$199K<0.01%+26513F-HRTimelineGroup
State of Wyoming3,436$196K0.02%-3,81813F-HRTimeline
LSV ASSET MANAGEMENT3,400$194K<0.01%013F-HRTimeline
Aquatic Capital Management LLC2,960$169K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,988$113K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,958$112K<0.01%+1413F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC1,827$104K<0.01%+4113F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,219$69.5K<0.01%-6313F-HRTimelineGroup
GAMMA Investing LLC1,177$67.1K<0.01%+113F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP989$55.4K<0.01%+20013F-HRTimelineGroup
USA FINANCIAL FORMULAS917$52.3K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…911$51.9K<0.01%-2,22913F-HRTimelineGroup
Sterling Capital Management LLC789$45K<0.01%-58313F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…668$38.1K<0.01%+42713F-HRTimelineGroup
Farther Finance Advisors, LLC610$35.5K<0.01%+1013F-HRTimeline
NewEdge Advisors, LLC548$31.2K<0.01%013F-HR/ATimeline
Pinnacle Wealth Planning Services, Inc.547$31.2K<0.01%+3913F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …530$30.2K<0.01%+11813F-HRTimelineGroup
GROUP ONE TRADING LLC500$28.5K<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…496$28.3K<0.01%-3213F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.495$28K<0.01%+24513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…471$26.9K<0.01%+2013F-HR/ATimelineGroup
Versant Capital Management, Inc448$25.5K<0.01%+1513F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.430$24.5K<0.01%new13F-HRTimelineGroup
Advisory Services Network, LLC367$20.9K<0.01%new13F-HRTimeline