# EDGAR Filing Document

**Accession Number:** 0000935494
**File Stem:** 0001567619-23-001638
**Filing Date:** 2023-2
**Character Count:** 7792
**Document Hash:** c1e27956fde64c5e0eca9a2931e52afd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001567619-23-001638.hdr.sgml**: 20230201

**ACCESSION NUMBER**: 0001567619-23-001638

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230130

**FILED AS OF DATE**: 20230201

**DATE AS OF CHANGE**: 20230201

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Starkloff Eric Howard
- **CENTRAL INDEX KEY:** 0001574827

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41595
- **FILM NUMBER:** 23576378

**MAIL ADDRESS:**
- **STREET 1:** 11500 NORTH MOPAC
- **STREET 2:** BUILDING C
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78759
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NATIONAL INSTRUMENTS CORP
- **CENTRAL INDEX KEY:** 0000935494
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **IRS NUMBER:** 741871327
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 11500 NORTH MOPAC EXPRESSWAY
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78759
- **BUSINESS PHONE:** 5123389119

**MAIL ADDRESS:**
- **STREET 1:** 11500 NORTH MOPAC EXPRESSWAY
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78759

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONAL INSTRUMENTS CORP /DE/
- **DATE OF NAME CHANGE:** 19950113

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Starkloff Eric Howard<br><sub>(Last) (First) (Middle)</sub><br>C/O NATIONAL INSTRUMENTS CORPORATION<br>11500 NORTH MOPAC<br><sub>(Street)</sub><br>AUSTIN, TX 78759<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-01-30 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>NATIONAL INSTRUMENTS CORP [ NATI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-01-30 |  | A |  | 66750<sup>(1)</sup> | A | $0 | 349028 | D |  |
| Common Stock | 2023-01-30 |  | A |  | 22669<sup>(2)</sup> | A | $0 | 371697 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Performance-Based Restricted Stock Units | <sup>(3)</sup> | 2023-01-30 |  | D |  |  | 75000 | <sup>(3)</sup> | 2038-05-01 | Common Stock | 75000 | $0 | 0 | D |  |
| Performance-Based Restricted Stock Units | <sup>(3)</sup> | 2023-01-30 |  | D |  |  | 25471 | <sup>(3)</sup> | 2038-05-01 | Common Stock | 25471 | $0 | 0 | D |  |

---

### Footnotes:

(1) Represents the number of shares of Common Stock vested pursuant to the performance-based restricted stock unit ("PRSU") award that was granted on February 1, 2020 and reported voluntarily on the Form 4 filed with the Securities and Exchange Commission on February 4, 2020, based upon the determination that 89% of the PRSU vested given that the issuer's total shareholder return ranked at the 48.54 percentile as compared to the Russell 2000 Index over the performance period. 8,250 PRSUs not eligible for vesting at the end of the performance period were canceled.

(2) Represents the number of shares of Common Stock vested pursuant to the performance-based restricted stock unit ("PRSU") award that was granted on April 29, 2020 and reported voluntarily on the Form 4 filed with the Securities and Exchange Commission on May 1, 2020, based upon the determination that 89% of the PRSU vested given that the issuer's total shareholder return ranked at the 48.54 percentile as compared to the Russell 2000 Index over the performance period.  2,802 PRSUs not eligible for vesting at the end of the performance period were canceled.

(3) The number of PRSUs reported in Table II represents the target number of PRSUs that were granted to the reporting person pursuant to the Issuer's 2015 Equity Incentive Plan. Per the terms of the award agreement governing the PRSUs, the number of underlying shares of the Issuer's common stock that the reporting person is ultimately entitled to receive at the time of vesting ranges from 0% to 200% of the target number of PRSUs granted, subject to how the Issuer's total shareholder return ranks in comparison to companies that comprise the Russell 2000 Index over a performance period consisting of the three years ended December 31, 2022.

**Signature:** Deborah Donahue as attorney-in-fact for Eric H. Starkloff  
**Date:** 2023-02-01

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**