Comparable stake leader
Karen Marie Rapp
SEC ownership of NATIONAL INSTRUMENTS CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000935494.
Disclosed value leader
Karen Marie Rapp
Comparable rows
0/3
Latest evidence
11 Oct 2023
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Karen Marie Rapp
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
11 Oct 2023
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000935494
- Issuer location
- Austin, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of NATIONAL INSTRUMENTS CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Karen Marie Rapp
Disclosed value leader
Karen Marie Rapp
Comparable rows
0/3
Latest evidence
11 Oct 2023
3/4/5
Highest disclosed value: $6,988,432
3 rows are not safely comparable across share classes.
Quick read
Karen Marie Rapp has the largest disclosed position value at $6.99M.
0 of 3 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Karen Marie Rapp's linked filing trail.
Disclosed position value
Top 2
Karen Marie Rapp
$6.99M
Jason Elliot Green
$4.37M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-3 of 3 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Karen Marie Rapp |
3/4/5
Chief Financial Officer, EVP
|
—
class O/S missing
|
$6,988,432
118,448 shares
|
— | 02 May 2022 |
| Jason Elliot Green |
3/4/5
Chief Revenue Officer & EVP
|
—
class O/S missing
|
$4,369,245
74,055 shares
|
— | 31 Dec 2022 |
| Eric Howard Starkloff |
3/4/5
President & CEO, Director
|
—
class O/S missing
|
—
2,952 shares
|
— | 11 Oct 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 20 Jul 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-14 of 14 reporting-owner rows connected to NATIONAL INSTRUMENTS CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
14
Largest Forms 3/4/5 holder
Karen Marie Rapp
Net 12M change
$0
Latest report
11 Oct 2023
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Karen Marie Rapp | Chief Financial Officer, EVP | $6,988,432 | Mixed | 02 May 2022 | ||
| Jason Elliot Green | Chief Revenue Officer & EVP | $4,369,245 | Mixed | 31 Dec 2022 | ||
| Loan T. le Duy | Director | Mixed | 11 Oct 2023 | |||
| James E. Cashman III | Director | Mixed | 11 Oct 2023 | |||
| Michael E. McGrath | Director | Mixed | 11 Oct 2023 | |||
| Scott A. Rust | Executive Vice President | Mixed | 11 Oct 2023 | |||
| Liam K. Griffin | Director | Mixed | 11 Oct 2023 | |||
| Alexander M. Davern | Director | Mixed | 11 Oct 2023 | |||
| Gerhard Paul Fettweis | Director | Mixed | 11 Oct 2023 | |||
| Thomas Benjamin | Executive Vice President | Mixed | 11 Oct 2023 | |||
| Daniel Berenbaum | Chief Financial Officer, EVP | Mixed | 11 Oct 2023 | |||
| Eric Howard Starkloff | President & CEO, Director | Mixed | 11 Oct 2023 | |||
| Gayla J. Delly | Director | Mixed | 11 Oct 2023 | |||
| Ritu Favre | Executive Vice President | Mixed | 11 Oct 2023 |
Recent insider transactions for NATIONAL INSTRUMENTS CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.