NATIONAL INSTRS CORP's ticker is NATI and the CUSIP is 636518102. A total of 327 filers reported holding NATIONAL INSTRS CORP in Q4 2018. The put-call ratio across all filers is 3.13 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $10,000 | +11.1% | 225 | 0.0% | 0.00% | – |
| Q3 2021 | $9,000 | -10.0% | 225 | 0.0% | 0.00% | – |
| Q2 2021 | $10,000 | -52.4% | 225 | -53.6% | 0.00% | – |
| Q1 2021 | $21,000 | 0.0% | 485 | 0.0% | 0.00% | – |
| Q4 2020 | $21,000 | -54.3% | 485 | -62.0% | 0.00% | -100.0% |
| Q3 2020 | $46,000 | -6.1% | 1,275 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $49,000 | +16.7% | 1,275 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $42,000 | -99.4% | 1,275 | -99.1% | 0.00% | -99.0% |
| Q4 2018 | $6,694,000 | +22982.8% | 147,518 | +14651.8% | 0.10% | +9500.0% |
| Q4 2015 | $29,000 | +3.6% | 1,000 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $28,000 | -33.3% | 1,000 | -33.3% | 0.00% | -66.7% |
| Q2 2013 | $42,000 | – | 1,500 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Simcah Management LLC | 147,000 | $4,707,000 | 5.43% |
| MCDANIEL TERRY & CO | 391,950 | $12,550,000 | 3.17% |
| RIVERBRIDGE PARTNERS LLC | 4,966,070 | $159,014,000 | 2.88% |
| Friedberg Investment Management | 215,373 | $6,896,000 | 2.79% |
| OMT Capital Management LLC | 265,260 | $8,494,000 | 2.56% |
| SCHAPER BENZ & WISE INVESTMENT COUNSEL INC/WI | 280,524 | $8,982,000 | 2.00% |
| EdgePoint Investment Group Inc. | 1,994,089 | $63,851,000 | 1.66% |
| Stanley-Laman Group, Ltd. | 189,510 | $6,068,000 | 1.32% |
| HERMES INVESTMENT MANAGEMENT LTD | 1,302,950 | $41,720,000 | 1.27% |
| Tygh Capital Management, Inc. | 188,453 | $6,034,000 | 1.26% |