NATIONAL INSTRS CORP's ticker is NATI and the CUSIP is 636518102. A total of 309 filers reported holding NATIONAL INSTRS CORP in Q1 2021. The put-call ratio across all filers is 0.29 and the average weighting 0.1%.
Quarter-by-quarter ownership
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Ergoteles LLC | 163,094 | $9,723,664 | 14.25% |
| Kellner Capital, LLC | 171,949 | $10,252 | 12.06% |
| HARVEST MANAGEMENT LLC | 300,900 | $17,939,658 | 9.33% |
| Vazirani Asset Management LLC | 95,000 | $5,663,900 | 8.66% |
| TIG Advisors, LLC | 3,039,369 | $181,207,180 | 8.16% |
| KRYGER CAPITAL Ltd | 987,651 | $58,883,753 | 6.80% |
| ALPINE ASSOCIATES MANAGEMENT INC. | 2,109,200 | $125,750,504 | 6.59% |
| NEXPOINT ASSET MANAGEMENT, L.P. | 782,049 | $46,625,761 | 6.37% |
| GLAZER CAPITAL, LLC | 1,614,638 | $96,265 | 6.27% |
| UBS OCONNOR LLC | 4,043,391 | $241,066,971 | 6.07% |