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.
Q4 2025 vs. Q3 2025
How the institutions holding Proto Labs Inc changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Of which not filed for Q4 2025 | Q4 2025 | Change |
|---|---|---|---|---|
| Holders | 213 | 1 | 234 | +22 |
| Shares | 21.7M | 1.01K | 21.8M | +23.8K (+0.1%) |
| Value | $1.09B | $51.0K | $1.10B | +$13.7M (+1.3%) |
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (44)
Institutions that held Proto Labs Inc at the end of Q4 2025 but not at the end of Q3 2025.
Sold out (22)
Institutions that held Proto Labs Inc at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| SG Capital Management LLC | 113,587 | $5.68M |
| Empowered Funds, LLC | 108,541 | $5.43M |
| Hussman Strategic Advisors, Inc. | 42,000 | $2.10M |
| Y-Intercept (Hong Kong) Ltd | 26,616 | $1.33M |
| Two Sigma Securities, LLC | 8,178 | $409.1K |
| Balyasny Asset Management LLC | 8,096 | $405.0K |
| Victory Capital Management Inc | 7,370 | $368.7K |
| Susquehanna International Group, LLP | 6,027 | $301.5K |
| Dynamic Technology Lab Private Ltd | 6,000 | $300.0K |
| Diametric Capital, LP | 5,471 | $273.7K |
| Two Sigma Investments, LP | 4,500 | $225.1K |
| Jump Financial, LLC | 4,026 | $201.4K |
| Aquatic Capital Management LLC | 1,281 | $64.1K |
| Simplex Trading, LLC | 267 | $13.0K |
| CNB Bank | 205 | $10.3K |
| National Bank of Canada | 64 | $3.20K |
| Silver Oak Securities, Inc | 37 | $1.85K |
| Stephens Consulting, LLC | 30 | $1.50K |
| Atlantic Trust, LLC | 16 | $801 |
| Principal Securities, Inc. | 7 | $350 |
| Advisory Services Network, LLC | 3 | $150 |
| Caitong International Asset Management Co., Ltd | 1 | $50 |
Not filed for Q4 2025 yet (1)
Institutions that held Proto Labs Inc at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Shell Asset Management Co | 1,015 | $51.0K |