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Livermore
Livermore
ZHEN

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.

Institutional holdersQ1 2026: 263 institutions
Q1 2021: 316 institutionsQ2 2021: 273 institutionsQ3 2021: 264 institutionsQ4 2021: 245 institutionsQ1 2022: 236 institutionsQ2 2022: 227 institutionsQ3 2022: 210 institutionsQ4 2022: 199 institutionsQ1 2023: 199 institutionsQ2 2023: 193 institutionsQ3 2023: 185 institutionsQ4 2023: 219 institutionsQ1 2024: 203 institutionsQ2 2024: 204 institutionsQ3 2024: 193 institutionsQ4 2024: 199 institutionsQ1 2025: 188 institutionsQ2 2025: 202 institutionsQ3 2025: 213 institutionsQ4 2025: 234 institutionsQ1 2026: 263 institutionsQ2 2026: 277 institutions
Value heldQ1 2026: $1.26B
Q1 2021: $3.49BQ2 2021: $2.65BQ3 2021: $1.89BQ4 2021: $1.31BQ1 2022: $1.31BQ2 2022: $1.16BQ3 2022: $881.5MQ4 2022: $593.9MQ1 2023: $745.6MQ2 2023: $775.6MQ3 2023: $571.4MQ4 2023: $845.8MQ1 2024: $774.1MQ2 2024: $662.3MQ3 2024: $634.3MQ4 2024: $837.2MQ1 2025: $764.5MQ2 2025: $866.4MQ3 2025: $1.09BQ4 2025: $1.10BQ1 2026: $1.26BQ2 2026: $1.83B
Institutions holding PRLB and their total value by quarter
QuarterHoldersValue
Q2 2026277$1.83B
Q1 2026263$1.26B
Q4 2025234$1.10B
Q3 2025213$1.09B
Q2 2025202$866.4M
Q1 2025188$764.5M
Q4 2024199$837.2M
Q3 2024193$634.3M
Q2 2024204$662.3M
Q1 2024203$774.1M
Q4 2023219$845.8M
Q3 2023185$571.4M
Q2 2023193$775.6M
Q1 2023199$745.6M
Q4 2022199$593.9M
Q3 2022210$881.5M
Q2 2022227$1.16B
Q1 2022236$1.31B
Q4 2021245$1.31B
Q3 2021264$1.89B
Q2 2021273$2.65B
Q1 2021316$3.49B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Proto Labs Inc; share changes are against Q4 2025.

Institutions holding PRLB in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Ankerstar Wealth, LLC3$1710.00%00.0%Unchanged
SJS Investment Consulting Inc.3$1720.00%00.0%Unchanged
Larson Financial Group LLC4$2280.00%00.0%Unchanged
Cedar Mountain Advisors, LLC4$2280.00%00.0%Unchanged
Assetmark, Inc5$2850.00%−2−28.6%Reduced
Gilpin Wealth Management, LLC5$2860.00%+3+150.0%Added
Sunbelt Securities, Inc.6$3420.00%00.0%Unchanged
IFP Advisors, Inc7$3990.00%00.0%Unchanged
Root Financial Partners, LLC7$3990.00%+7New
Annis Gardner Whiting Capital Advisors, LLC7$4000.00%00.0%Unchanged
Torren Management, LLC8$4560.00%−10−55.6%Reduced
Massmutual Trust Co FSB9$5130.00%00.0%Unchanged
MAI Capital Management12$6850.00%+6+100.0%Added
Farmers & Merchants Investments Inc15$8550.00%−2−11.8%Reduced
Ronald Blue Trust, Inc.18$1.03K0.00%00.0%Unchanged
ORG Wealth Partners, LLC18$1.03K0.00%00.0%Unchanged
True Wealth Design, LLC19$1.08K0.00%00.0%Unchanged
Manchester Capital Management LLC22$1.25K0.00%00.0%Unchanged
International Assets Investment Management, LLC23$1.34K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.25$1.43K0.00%00.0%Unchanged
Quarry LP29$1.65K0.00%−305−91.3%Reduced
UMA Financial Services, Inc.29$1.65K0.00%00.0%Unchanged
Parallel Advisors, LLC29$1.65K0.00%+19+190.0%Added
Northwestern Mutual Wealth Management Co31$1.77K0.00%+21+210.0%Added
Essential Partners LLC32$1.82K0.00%+2+6.7%Added
SBI Securities Co., Ltd.34$1.94K0.00%−314−90.2%Reduced
CBIZ Investment Advisory Services, LLC35$2.00K0.00%00.0%Unchanged
Zions Bancorporation, National Association41$2.34K0.00%+41New
Sound Income Strategies, LLC51$2.96K0.00%00.0%Unchanged
Ares Financial Consulting, LLC53$3.08K0.00%00.0%Unchanged
Rothschild Investment LLC57$3.25K0.00%+7+14.0%Added
Bank of Jackson Hole Trust59$3.36K0.00%00.0%Unchanged
Smartleaf Asset Management LLC63$3.49K0.00%−265−80.8%Reduced
Keating Financial Advisory Services, Inc.66$3.76K0.00%+66New
Barrow Hanley Mewhinney & Strauss LLC67$3.82K0.00%+67New
Rachor Investment Advisory Services, LLC74$4.22K0.00%+5+7.2%Added
Private Wealth Management Group, LLC76$4.33K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.75$4.36K0.00%+75New
Harbour Investments, Inc.85$4.85K0.00%+85New
Salomon & Ludwin, LLC84$4.85K0.00%00.0%Unchanged
Old Point Trust & Financial Services N A100$5.70K0.00%00.0%Unchanged
Allworth Financial LP102$5.82K0.00%+66+183.3%Added
Twin Peaks Wealth Advisors, LLC110$6.27K0.00%+110New
Parkside Financial Bank & Trust128$7.30K0.00%00.0%Unchanged
Los Angeles Capital Management LLC130$7.41K0.00%00.0%Unchanged
Signaturefd, LLC136$7.75K0.00%00.0%Unchanged
Covestor Ltd143$8.00K0.01%−23−13.9%Reduced
Bessemer Group Inc143$8.00K0.00%00.0%Unchanged
Umb Bank N A189$10.8K0.00%00.0%Unchanged
National Bank of Canada196$11.2K0.00%+196New
Hoese & Co LLP200$11.4K0.01%00.0%Unchanged
Aventura Private Wealth, LLC200$11.4K0.00%00.0%Unchanged
HighMark Wealth Management LLC345$19.7K0.01%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA350$20.0K0.01%00.0%Unchanged
US Bancorp362$20.6K0.00%+35+10.7%Added
Advisory Services Network, LLC367$20.9K0.00%+367New
Cullen/Frost Bankers, Inc.430$24.5K0.00%+430New
Versant Capital Management, Inc448$25.5K0.00%+15+3.5%Added
EverSource Wealth Advisors, LLC471$26.9K0.00%+20+4.4%Added
Hantz Financial Services, Inc.495$28.0K0.00%+245+98.0%Added
Public Employees Retirement System of Ohio496$28.3K0.00%−32−6.1%Reduced
Group One Trading, L.P.500$28.5K0.00%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.530$30.2K0.00%+118+28.6%Added
Pinnacle Wealth Planning Services, Inc.547$31.2K0.00%+39+7.7%Added
GWM Advisors LLC548$31.2K0.00%00.0%Unchanged
Farther Finance Advisors, LLC610$35.5K0.00%+10+1.7%Added
Rockefeller Capital Management L.P.668$38.1K0.00%+427+177.2%Added
Sterling Capital Management LLC789$45.0K0.00%−583−42.5%Reduced
Tower Research Capital LLC (TRC)911$51.9K0.00%−2,229−71.0%Reduced
USA Financial Portformulas Corp917$52.3K0.01%+917New
Jones Financial Companies LLLP989$55.4K0.00%+200+25.3%Added
GAMMA Investing LLC1,177$67.1K0.00%+1+0.1%Added
Advisor Group Holdings, Inc.1,219$69.5K0.00%−63−4.9%Reduced
Nisa Investment Advisors, LLC1,827$104.2K0.00%+41+2.3%Added
The PNC Financial Services Group, Inc.1,958$111.6K0.00%+14+0.7%Added
Ameritas Investment Partners, Inc.1,988$113.4K0.00%00.0%Unchanged
Aquatic Capital Management LLC2,960$168.8K0.00%+2,960New
LSV Asset Management3,400$194.0K0.00%00.0%Unchanged
State of Wyoming3,436$195.9K0.02%−3,818−52.6%Reduced
CWM, LLC3,486$198.8K0.00%+265+8.2%Added
HighTower Advisors, LLC3,611$205.9K0.00%+3,611New
Victory Capital Management Inc3,699$210.9K0.00%+3,699New
ProShare Advisors LLC3,702$211.1K0.00%−924−20.0%Reduced
Pictet Asset Management Holding SA3,774$215.2K0.00%+3,774New
Public Employees Retirement Association of Colorado3,847$219.0K0.00%00.0%Unchanged
Prelude Capital Management, LLC3,906$222.7K0.02%−1,436−26.9%Reduced
LPL Financial LLC3,934$224.3K0.00%+3,934New
NBC Securities, Inc.4,006$228.4K0.02%+3,100+342.2%Added
Bank of Montreal4,216$240.4K0.00%+232+5.8%Added
Mirabella Financial Services LLP4,296$245.0K0.02%+4,296New
Dynamic Technology Lab Private Ltd4,380$249.7K0.04%+4,380New
Angeles Wealth Management, LLC4,490$256.0K0.01%+4,490New
Auto-Owners Insurance Co4,500$256.6K0.01%00.0%Unchanged
Cerity Partners LLC4,588$261.6K0.00%+367+8.7%Added
Quadrature Capital Ltd4,611$262.9K0.00%+4,611New
Schonfeld Strategic Advisors LLC4,794$273.4K0.00%+4,794New
Raymond James Financial Inc4,874$277.9K0.00%+223+4.8%Added
Steward Partners Investment Advisory, LLC5,000$285.1K0.00%−3,000−37.5%Reduced
Leonteq Securities AG5,000$285.1K0.02%00.0%Unchanged
Centiva Capital, LP5,064$288.7K0.01%+5,064New