NATIONAL INSTRS CORP's ticker is and the CUSIP is 636518952. A total of 8 filers reported holding NATIONAL INSTRS CORP in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $6 | – | 20,500 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sand Grove Capital Management LLP | 133,000 | $6,971 | 0.94% |
| Maven Securities LTD | 171,200 | $8,972,592 | 0.19% |
| GROUP ONE TRADING, L.P. | 177,800 | $9,318,498 | 0.03% |
| JANE STREET GROUP, LLC | 126,600 | $6,635,106 | 0.00% |
| SIMPLEX TRADING, LLC | 75,600 | $3,962 | 0.00% |
| JPMORGAN CHASE & CO | 118,500 | $6,211,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| WATER ISLAND CAPITAL LLC | 20,500 | $6 | 0.00% |