Institutional Ownership
Proto Labs Inc
CUSIP 743713109COMPRLBQ1 2026
13D / 13G Filings
42
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
18.0%
Max % of class reported
Institutional Holders
254
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
42 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Disciplined Growth Investors Inc /Mn | 13G/A | 11.3% | 2.67M | SEC |
| 2 | Nov 14, 2025 | Disciplined Growth Investors Inc /Mn | 13G/A | 10.9% | 2.59M | SEC |
| 3 | Aug 14, 2025 | Disciplined Growth Investors Inc /Mn | 13G/A | 11.4% | 2.72M | SEC |
| 4 | Jul 17, 2025 | Blackrock, Inc. | 13G/A | 15.0% | 3.55M | SEC |
| 5 | May 15, 2025 | Disciplined Growth Investors Inc /Mn | 13G/A | 11.2% | 2.67M | SEC |
| 6 | Feb 14, 2025 | Disciplined Growth Investors Inc /Mn | 13G/A | 8.9% | 2.17M | SEC |
| 7 | Jan 23, 2025 | Dimensional Fund Advisors LP | 13G | 5.3% | 1.30M | SEC |
| 8 | Nov 14, 2024 | Disciplined Growth Investors Inc /Mn | 13G/A | 8.4% | 2.06M | SEC |
| 9 | Nov 8, 2024 | Blackrock, Inc. | 13G/A | 16.0% | 4.02M | SEC |
| 10 | Oct 18, 2024 | Blackrock, Inc. | 13G/A | 16.0% | 4.02M | SEC |
32 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Proto Labs Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 3.68M | $209.71M |
| 2 | Disciplined Growth Investors Inc /Mn | 2.50M | $142.40M |
| 3 | Dimensional Fund Advisors LP | 1.27M | $72.55M |
| 4 | State Street Corp | 1.09M | $62.27M |
| 5 | American Capital Management Inc | 627.7K | $35.79M |
| 6 | Geode Capital Management, LLC | 580.2K | $33.09M |
| 7 | Renaissance Technologies LLC | 520.3K | $29.66M |
| 8 | Rubric Capital Management LP | 486.4K | $27.73M |
| 9 | Arrowstreet Capital, Limited Partnership | 463.8K | $26.44M |
| 10 | Fmr LLC | 422.4K | $24.08M |