PROTO LABS INC's ticker is and the CUSIP is 743713909. A total of 4 filers reported holding PROTO LABS INC in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $1,258,000 | – | 13,700 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 21,100 | $1,951,000 | 0.00% |
| HBK INVESTMENTS L P | 6,400 | $426,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 2,700 | $180,000 | 0.00% |