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 2021 vs. Q3 2021
How the institutions holding Proto Labs Inc changed between Q3 2021 and Q4 2021.
All holders in Q4 2021All holders in Q3 2021
| Measure | Q3 2021 | Of which not filed for Q4 2021 | Q4 2021 | Change |
|---|---|---|---|---|
| Holders | 264 | 4 | 245 | −15 |
| Shares | 28.3M | 9.87K | 25.4M | −2.89M (−10.2%) |
| Value | $1.89B | $655.0K | $1.31B | −$579.6M (−30.7%) |
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.
New holders (47)
Institutions that held Proto Labs Inc at the end of Q4 2021 but not at the end of Q3 2021.
Sold out (62)
Institutions that held Proto Labs Inc at the end of Q3 2021 and filed for Q4 2021 without it.
Not filed for Q4 2021 yet (4)
Institutions that held Proto Labs Inc at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2021 | Value, Q3 2021 |
|---|---|---|
| Marshall Wace North America L.P. | 8,736 | $581.0K |
| Heritage Wealth Management, LLC | 919 | $61.0K |
| Sonora Investment Management, LLC | 200 | $13.0K |
| Berman Capital Advisors, LLC | 15 | $0 |