NATIONAL INSTRS CORP's ticker is NATI and the CUSIP is 636518102. A total of 301 filers reported holding NATIONAL INSTRS CORP in Q1 2018. The put-call ratio across all filers is 0.02 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $610,000 | -36.4% | 14,131 | -51.3% | 0.00% | -66.7% |
| Q1 2020 | $959,000 | +192.4% | 29,000 | +271.1% | 0.01% | +300.0% |
| Q2 2019 | $328,000 | -90.2% | 7,815 | -90.2% | 0.00% | -87.5% |
| Q4 2017 | $3,330,000 | -1.3% | 80,000 | 0.0% | 0.02% | -25.0% |
| Q3 2017 | $3,374,000 | – | 80,000 | – | 0.03% | – |
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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% |