NATI insider transactions

Fettweis Gerhard Paul returned 32,292 shares to the company, closing all direct ownership in the company (SEC Form 4)

Griffin Liam returned 25,220 shares to the company, closing all direct ownership in the company (SEC Form 4)

Delly Gayla J returned 22,279 shares to the company, closing all direct ownership in the company (SEC Form 4)

Le Duy Loan T returned 125,494 shares to the company, closing all direct ownership in the company (SEC Form 4)

Starkloff Eric Howard returned 391,466 shares to the company, closing all direct ownership in the company (SEC Form 4)

Mcgrath Michael E returned 50,811 shares to the company, closing all direct ownership in the company (SEC Form 4)

Rust Scott Arthur returned 36,593 shares to the company, closing all direct ownership in the company (SEC Form 4)

Davern Alexander M returned 278,532 shares to the company, closing all direct ownership in the company (SEC Form 4)

Favre Ritu returned 45,620 shares to the company, closing all direct ownership in the company (SEC Form 4)

Cashman James E Iii returned 25,220 shares to the company, closing all direct ownership in the company (SEC Form 4)

Benjamin Thomas returned 57,073 shares to the company, closing all direct ownership in the company (SEC Form 4)

Berenbaum Daniel returned 14,397 shares to the company, closing all direct ownership in the company (SEC Form 4)

SEC Form 4: Benjamin Thomas covered exercise/tax liability with 5,025 shares, decreasing direct ownership by 8% to 57,073 units

SEC Form 4 filed by Favre Ritu

SEC Form 4 filed by Rust Scott Arthur

SEC Form 4 filed by Davern Alexander M

SEC Form 4 filed by Fettweis Gerhard Paul

SEC Form 4 filed by Starkloff Eric Howard

SEC Form 4 filed by Rust Scott Arthur

SEC Form 4 filed by Berenbaum Daniel

SEC Form 4 filed by Favre Ritu

SEC Form 4 filed by Benjamin Thomas

SEC Form 4 filed by Cashman James E Iii

SEC Form 4 filed by Fettweis Gerhard Paul

SEC Form 4 filed by Griffin Liam

SEC Form 4 filed by Delly Gayla J

SEC Form 4 filed by Le Duy Loan T

SEC Form 4 filed by Mcgrath Michael E

SEC Form 4 filed by Davern Alexander M

SEC Form 4 filed by Rust Scott Arthur

SEC Form 4 filed by Starkloff Eric Howard

SEC Form 4: Berenbaum Daniel was granted 14,247 shares

SEC Form 5: Starkloff Eric Howard gifted 3,058 shares, decreasing direct ownership by 1% to 282,520 units

SEC Form 4: Starkloff Eric Howard sold $2,754,560 worth of shares (50,859 units at $54.16) as part of a pre-agreed trading plan, decreasing direct ownership by 14% to 320,838 units (withholding tax)

SEC Form 4: Rust Scott Arthur sold $113,600 worth of shares (2,094 units at $54.25) and was granted 159 shares, decreasing direct ownership by 3% to 55,229 units to satisfy withholding tax

SEC Form 4: Rust Scott Arthur was granted 7,962 shares, increasing direct ownership by 16% to 57,164 units

SEC Form 4: Starkloff Eric Howard was granted 89,419 shares, increasing direct ownership by 32% to 371,697 units

SEC Form 3: New insider Benjamin Thomas claimed ownership of 53,649 shares

SEC Form 3: New insider Berenbaum Daniel claimed no ownership of stock in the company

SEC Form 4: Starkloff Eric Howard sold $65,280 worth of shares (1,200 units at $54.40) as part of a pre-agreed trading plan, decreasing direct ownership by 0.42% to 282,278 units

SEC Form 4: Starkloff Eric Howard sold $98,406 worth of shares (2,100 units at $46.86) as part of a pre-agreed trading plan, decreasing direct ownership by 0.74% to 283,478 units

SEC Form 4: Green Jason Elliot sold $296,159 worth of shares (8,026 units at $36.90), decreasing direct ownership by 10% to 74,055 units (withholding tax)

SEC Form 4: Starkloff Eric Howard sold $37,800 worth of shares (900 units at $42.00) as part of a pre-agreed trading plan, decreasing direct ownership by 0.31% to 285,578 units

SEC Form 4: Starkloff Eric Howard sold $32,000 worth of shares (800 units at $40.00) as part of a pre-agreed trading plan, decreasing direct ownership by 0.28% to 286,478 units

SEC Form 4: Rust Scott Arthur was granted 137 shares, increasing direct ownership by 0.28% to 49,202 units

SEC Form 4: Favre Ritu sold $54,865 worth of shares (1,437 units at $38.18), decreasing direct ownership by 4% to 38,465 units (for tax liability)

SEC Form 4: Starkloff Eric Howard sold $37,800 worth of shares (900 units at $42.00) as part of a pre-agreed trading plan, decreasing direct ownership by 0.31% to 287,278 units

SEC Form 4: Green Jason Elliot sold $207,310 worth of shares (5,000 units at $41.46), decreasing direct ownership by 6% to 82,081 units

SEC Form 4 filed by National Instruments Corporation

SEC Form 4: Green Jason Elliot sold $192,967 worth of shares (5,000 units at $38.59) and was granted 173 shares, decreasing direct ownership by 5% to 87,081 units

SEC Form 4: Green Jason Elliot sold $173,715 worth of shares (5,000 units at $34.74), decreasing direct ownership by 5% to 91,908 units

SEC Form 4: Starkloff Eric Howard converted options into 11,028 shares and sold $687,816 worth of shares (19,032 units at $36.14), decreasing direct ownership by 3% to 288,978 units (tax withholding)

SEC Form 4: Rust Scott Arthur was granted 173 shares, converted options into 6,188 shares and sold $177,845 worth of shares (4,921 units at $36.14), increasing direct ownership by 3% to 48,892 units to satisfy withholding obligation

SEC Form 4: Rapp Karen Marie sold $218,394 worth of shares (6,043 units at $36.14), decreasing direct ownership by 5% to 118,448 units (for withholding tax)

SEC Form 4: Green Jason Elliot was granted 242 shares and sold $212,033 worth of shares (5,867 units at $36.14), decreasing direct ownership by 5% to 96,908 units (for tax liability)

SEC Form 4: Fettweis Gerhard Paul sold $17,745 worth of shares (491 units at $36.14), decreasing direct ownership by 2% to 29,076 units (tax withholding)

SEC Form 4: Favre Ritu sold $207,263 worth of shares (5,735 units at $36.14), decreasing direct ownership by 13% to 39,902 units (tax withholding)

SEC Form 4: Mcgrath Michael E was granted 5,037 shares, increasing direct ownership by 12% to 47,092 units

SEC Form 4: Davern Alexander M was granted 5,037 shares, increasing direct ownership by 3% to 189,850 units

SEC Form 4: Le Duy Loan T was granted 5,037 shares, increasing direct ownership by 4% to 121,775 units