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| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | NATIONAL INSTRUMENTS CORP | NATI | 0 | -464,225 | 0 | -17,129,903,000 | |
| 12/31/2022 | NATIONAL INSTRUMENTS CORP | NATI | 464,225 | -78,000 | 17,129,903,000 | 17,109,439,000 | $36,900.00 |
| 09/30/2022 | NATIONAL INSTRUMENTS CORP | NATI | 542,225 | -98,877 | 20,464,000 | 442,000 | $37.74 |
| 06/30/2022 | NATIONAL INSTRUMENTS CORP | NATI | 641,102 | -53,000 | 20,022,000 | -8,152,000 | $31.23 |
| 03/31/2022 | NATIONAL INSTRUMENTS CORP | NATI | 694,102 | -117,000 | 28,174,000 | -7,247,000 | $40.59 |
| 12/31/2021 | NATIONAL INSTRUMENTS CORP | NATI | 811,102 | -20,000 | 35,421,000 | 2,817,000 | $43.67 |
| 09/30/2021 | NATIONAL INSTRUMENTS CORP | NATI | 831,102 | 0 | 32,604,000 | -2,535,000 | $39.23 |
| 06/30/2021 | NATIONAL INSTRUMENTS CORP | NATI | 831,102 | -22,500 | 35,139,000 | -1,724,000 | $42.28 |
| 03/31/2021 | NATIONAL INSTRUMENTS CORP | NATI | 853,602 | 0 | 36,863,000 | -644,000 | $43.19 |
| 12/31/2020 | NATIONAL INSTRUMENTS CORP | NATI | 853,602 | 50,000 | 37,507,000 | 8,818,000 | $43.94 |
| 09/30/2020 | NATIONAL INSTRUMENTS CORP | NATI | 803,602 | 88,510 | 28,689,000 | 1,008,000 | $35.70 |
| 06/30/2020 | NATIONAL INSTRUMENTS CORP | NATI | 715,092 | -7,740 | 27,681,000 | 3,770,000 | $38.71 |
| 03/31/2020 | NATIONAL INSTRUMENTS CORP | NATI | 722,832 | 88,434 | 23,911,000 | -2,949,000 | $33.08 |
| 12/31/2019 | NATIONAL INSTRUMENTS CORP | NATI | 634,398 | -776,413 | 26,860,000 | -32,380,000 | $42.34 |
| 09/30/2019 | NATIONAL INSTRUMENTS CORP | NATI | 1,410,811 | -2,669,730 | 59,240,000 | -112,102,000 | $41.99 |
| 06/30/2019 | NATIONAL INSTRUMENTS CORP | NATI | 4,080,541 | -96,070 | 171,342,000 | -13,932,000 | $41.99 |
| 03/31/2019 | NATIONAL INSTRUMENTS CORP | NATI | 4,176,611 | -260,393 | 185,274,000 | -16,077,000 | $44.36 |
| 12/31/2018 | NATIONAL INSTRUMENTS CORP | NATI | 4,437,004 | 112,559 | 201,351,000 | -7,649,000 | $45.38 |
| 09/30/2018 | NATIONAL INSTRUMENTS CORP | NATI | 4,324,445 | 608,258 | 209,000,000 | 52,994,000 | $48.33 |
| 06/30/2018 | NATIONAL INSTRUMENTS CORP | NATI | 3,716,187 | 173,141 | 156,006,000 | -23,166,000 | $41.98 |
| 03/31/2018 | NATIONAL INSTRUMENTS CORP | NATI | 3,543,046 | 6,828 | 179,172,000 | 31,959,000 | $50.57 |
| 12/31/2017 | NATIONAL INSTRUMENTS CORP | NATI | 3,536,218 | 61,558 | 147,213,000 | 687,000 | $41.63 |
| 09/30/2017 | NATIONAL INSTRUMENTS CORP | NATI | 3,474,660 | -309,091 | 146,526,000 | -5,656,000 | $42.17 |
| 06/30/2017 | NATIONAL INSTRUMENTS CORP | NATI | 3,783,751 | 16,809 | 152,182,000 | 29,530,000 | $40.22 |
| 03/31/2017 | NATIONAL INSTRUMENTS CORP | NATI | 3,766,942 | 493,095 | 122,652,000 | 21,752,000 | $32.56 |
| 12/31/2016 | NATIONAL INSTRUMENTS CORP | NATI | 3,273,847 | 70,061 | 100,900,000 | 9,912,000 | $30.82 |
| 09/30/2016 | NATIONAL INSTRUMENTS CORP | NATI | 3,203,786 | 1,126,309 | 90,988,000 | 31,385,000 | $28.40 |
| 06/30/2016 | NATIONAL INSTRUMENTS CORP | NATI | 2,314,212 | 53,861 | 63,409,000 | -4,650,000 | $27.40 |
| 03/31/2016 | NATIONAL INSTRUMENTS CORP | NATI | 2,260,351 | 182,874 | 68,059,000 | 8,456,000 | $30.11 |
| 12/31/2015 | NATIONAL INSTRUMENTS CORP | NATI | 2,077,477 | 2,077,477 | 59,603,000 | 59,603,000 | $28.69 |
| 09/30/2015 | NATIONAL INSTRUMENTS CORP | NATI | 1,422,938 | 1,422,938 | 39,543,000 | 39,543,000 | $27.79 |
| 06/30/2015 | NATIONAL INSTRUMENTS CORP | NATI | 1,024,716 | 1,024,716 | 30,188,000 | 30,188,000 | $29.46 |
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