NATIONAL INSTRS CORP's ticker is NATI and the CUSIP is 636518102. A total of 296 filers reported holding NATIONAL INSTRS CORP in Q4 2020. The put-call ratio across all filers is 0.24 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $435,000 | +22.9% | 9,900 | 0.0% | 0.01% | 0.0% |
| Q3 2020 | $354,000 | -7.8% | 9,900 | 0.0% | 0.01% | 0.0% |
| Q2 2020 | $384,000 | +17.1% | 9,900 | 0.0% | 0.01% | 0.0% |
| Q1 2020 | $328,000 | +32700.0% | 9,900 | +47042.9% | 0.01% | – |
| Q4 2018 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q3 2018 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q2 2018 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q1 2018 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q4 2017 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q3 2017 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q2 2017 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q1 2017 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q4 2016 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q3 2016 | $1,000 | 0.0% | 21 | 0.0% | 0.00% | – |
| Q2 2016 | $1,000 | 0.0% | 21 | +61.5% | 0.00% | – |
| Q1 2016 | $1,000 | 0.0% | 13 | 0.0% | 0.00% | – |
| Q4 2015 | $1,000 | – | 13 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TIG Advisors, LLC | 4,755,304 | $272,954,450 | 15.27% |
| HARVEST MANAGEMENT LLC | 264,400 | $15,176,560 | 13.09% |
| PSquared Asset Management AG | 1,909,700 | $109,616,780 | 12.87% |
| Vazirani Asset Management LLC | 100,000 | $5,740,000 | 9.68% |
| Kellner Capital, LLC | 118,098 | $6,779 | 7.79% |
| BCK CAPITAL MANAGEMENT LP | 131,442 | $7,544,771 | 5.76% |
| KRYGER CAPITAL Ltd | 892,222 | $51,213,543 | 5.24% |
| WATER ISLAND CAPITAL LLC | 959,494 | $55,075 | 5.15% |
| Kopion Asset Management, LLC | 90,819 | $5,213 | 4.42% |
| CARLSON CAPITAL L P | 855,000 | $49,077,000 | 4.20% |