Maple Plain, MN
PROTO LABS INCPRLB— Latest position per institution from SEC 13F filings
15
Institutional holders
23.98M
Total shares held
1.60B
Estimated value
1.20M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
4.32M
Value
133.53M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
3.90M
Value
317.58M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
2.67M
Value
134.88M
Filed
Dec 31, 2025
DISCIPLINED GROWTH INVESTORS INC /MN
CIK 1050442
Shares
2.38M
Value
194.04M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
1.60M
Value
130.40M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.15M
Value
93.92M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
1.14M
Value
92.80M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.05M
Value
85.96M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
711.74K
Value
24.94M
Filed
Mar 31, 2025
AMERICAN CAPITAL MANAGEMENT INC
CIK 1320168
Shares
619.85K
Value
50.52M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
614.03K
Value
50.06M
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
469.25K
Value
38.25M
Filed
Jun 30, 2026
BROWN CAPITAL MANAGEMENT LLC
CIK 885062
Shares
467.37K
Value
16.34M
Filed
Jun 30, 2023
PRUDENTIAL FINANCIAL INC
CIK 1137774
Shares
457.81K
Value
37.32M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
442.66K
Value
36.08M
Filed
Jun 30, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
440.82K
Value
35.93M
Filed
Jun 30, 2026
NUVEEN, LLC
CIK 1871926
Shares
420.06K
Value
34.24M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
403.18K
Value
32.86M
Filed
Jun 30, 2026
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 938206
Shares
370.15K
Value
30.17M
Filed
Jun 30, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
354.19K
Value
28.87M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 4.32M | 133.53M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 3.90M | 317.58M | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 2.67M | 134.88M | Dec 31, 2025 |
| 4 | DISCIPLINED GROWTH INVESTORS INC /MN | 1050442 | 2.38M | 194.04M | Jun 30, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 1.60M | 130.40M | Jun 30, 2026 |
| 6 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.15M | 93.92M | Jun 30, 2026 |
| 7 | STATE STREET CORP | 93751 | 1.14M | 92.80M | Jun 30, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.05M | 85.96M | Jun 30, 2026 |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 711.74K | 24.94M | Mar 31, 2025 |
| 10 | AMERICAN CAPITAL MANAGEMENT INC | 1320168 | 619.85K | 50.52M | Jun 30, 2026 |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 614.03K | 50.06M | Jun 30, 2026 |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 469.25K | 38.25M | Jun 30, 2026 |
| 13 | BROWN CAPITAL MANAGEMENT LLC | 885062 | 467.37K | 16.34M | Jun 30, 2023 |
| 14 | PRUDENTIAL FINANCIAL INC | 1137774 | 457.81K | 37.32M | Jun 30, 2026 |
| 15 | FMR LLC | 315066 | 442.66K | 36.08M | Jun 30, 2026 |
| 16 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 440.82K | 35.93M | Jun 30, 2026 |
| 17 | NUVEEN, LLC | 1871926 | 420.06K | 34.24M | Jun 30, 2026 |
| 18 | GOLDMAN SACHS GROUP INC | 886982 | 403.18K | 32.86M | Jun 30, 2026 |
| 19 | DRIEHAUS CAPITAL MANAGEMENT LLC | 938206 | 370.15K | 30.17M | Jun 30, 2026 |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 354.19K | 28.87M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.