PROTO LABS INC

PublicCIK: 1443669
PRLBNYSE
Location

Maple Plain, MN

13F Filings

Institutional Holders

PROTO LABS INCPRLB— Latest position per institution from SEC 13F filings

15

Institutional holders

26.05M

Total shares held

1.50B

Estimated value

1.30M

Avg. position size

1

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

4.32M

Value

133.53M

Filed

Jun 30, 2024

2

BLACKROCK, INC.

CIK 2012383

Shares

3.90M

Value

317.58M

Filed

Jun 30, 2026

3

VANGUARD GROUP INC

CIK 102909

Shares

2.67M

Value

134.88M

Filed

Dec 31, 2025

4

DISCIPLINED GROWTH INVESTORS INC /MN

CIK 1050442

Shares

2.38M

Value

194.04M

Filed

Jun 30, 2026

5

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

2.20M

Value

27.04K

Filed

Jun 30, 2026

6

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

1.60M

Value

130.40M

Filed

Jun 30, 2026

7

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

1.15M

Value

93.92M

Filed

Jun 30, 2026

8

STATE STREET CORP

CIK 93751

Shares

1.14M

Value

92.80M

Filed

Jun 30, 2026

9

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.05M

Value

85.96M

Filed

Jun 30, 2026

10

WELLINGTON MANAGEMENT GROUP LLP

CIK 902219

Shares

711.74K

Value

24.94M

Filed

Mar 31, 2025

11

AMERICAN CAPITAL MANAGEMENT INC

CIK 1320168

Shares

619.85K

Value

50.52M

Filed

Jun 30, 2026

12

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

614.03K

Value

50.06M

Filed

Jun 30, 2026

13

NO STREET GP LP

CIK 1765774

Shares

475K

Value

17.30K

Filed

Sep 30, 2022

14

RENAISSANCE TECHNOLOGIES LLC

CIK 1037389

Shares

469.25K

Value

38.25M

Filed

Jun 30, 2026

15

BROWN CAPITAL MANAGEMENT LLC

CIK 885062

Shares

467.37K

Value

16.34M

Filed

Jun 30, 2023

16

AMOVA ASSET MANAGEMENT AMERICAS, INC.

CIK 1480751

Shares

467.02K

Value

11.92M

Filed

Dec 31, 2022

17

SUMITOMO MITSUI TRUST GROUP, INC.

CIK 1475365

Shares

467.02K

Value

11.92M

Filed

Dec 31, 2022

18

PRUDENTIAL FINANCIAL INC

CIK 1137774

Shares

457.81K

Value

37.32M

Filed

Jun 30, 2026

19

FMR LLC

CIK 315066

Shares

442.66K

Value

36.08M

Filed

Jun 30, 2026

20

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 1164508

Shares

440.82K

Value

35.93M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.