# CDNS — Cadence Design Systems, Inc. - Common Stock: congressional trades

> Members of Congress' disclosed trades in CDNS (STOCK Act). Corporate-insider (Form 4) activity is a separate dataset: https://www.fatcatwatch.com/api/v1/insiders/CDNS. Data as of 2026-10-23T17:16:03Z.

Dashboard: https://www.fatcatwatch.com/tickers/CDNS · JSON: https://www.fatcatwatch.com/api/v1/tickers/CDNS

## Totals

- Members: 4 (0 bought, 4 sold)
- Trades: 6 (0 buys, 6 sells); last trade date 2026-09-14
- Disclosed volume: $83,006–$245,000; estimated midpoint ≈ $164k (an estimate from bracket midpoints, not a disclosed figure)

## Members

| Member | Party | Trades | Buys | Sells | Disclosed range | Est. midpoint |
| --- | --- | --- | --- | --- | --- | --- |
| [Alan Armstrong](https://www.fatcatwatch.com/members/alan-armstrong-a000383) | Senate · R, OK | 1 | 0 | 1 | $50,001–$100,000 | ≈$75k (est.) |
| [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | House · R, OK-1 | 2 | 0 | 2 | $30,002–$100,000 | ≈$65k (est.) |
| [Byron Donalds](https://www.fatcatwatch.com/members/byron-donalds-d000032) | House · R, FL-19 | 2 | 0 | 2 | $2,002–$30,000 | ≈$16k (est.) |
| [Tommy Tuberville](https://www.fatcatwatch.com/members/tommy-tuberville-t000278) | Senate · R, AL | 1 | 0 | 1 | $1,001–$15,000 | ≈$8,001 (est.) |

## Recent trades (6 of 6)

| Trade date | Filed | Delay (days) | Member | Action | Asset | Owner | Amount disclosed | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-14 | 2026-09-25 | 11 | [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | Sell (partial) | Cadence Design Systems, Inc. - Common Stock | joint | $15,001–$50,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20035491.pdf) |
| 2026-09-02 | 2026-09-25 | 23 | [Kevin Hern](https://www.fatcatwatch.com/members/kevin-hern-h001082) | Sell (partial) | Cadence Design Systems, Inc. - Common Stock | joint | $15,001–$50,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20035491.pdf) |
| 2026-06-05 | 2026-07-15 | 40 | [Byron Donalds](https://www.fatcatwatch.com/members/byron-donalds-d000032) | Sell (partial) | Cadence Design Systems, Inc. - Common Stock | spouse | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034968.pdf) |
| 2026-06-05 | 2026-07-15 | 40 | [Byron Donalds](https://www.fatcatwatch.com/members/byron-donalds-d000032) | Sell (partial) | Cadence Design Systems, Inc. - Common Stock | self | $1,001–$15,000 (bracket) | [source](https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20034968.pdf) |
| 2026-03-27 | 2026-07-21 | 116 (late) | [Alan Armstrong](https://www.fatcatwatch.com/members/alan-armstrong-a000383) | Sell | Cadence Design Systems, Inc. - Common Stock | self | $50,001–$100,000 (bracket) | [source](https://efdsearch.senate.gov/search/view/ptr/fda235b3-bad7-4637-8fa1-053f354d929c/) |
| 2024-05-03 | 2026-08-05 | 824 (late) | [Tommy Tuberville](https://www.fatcatwatch.com/members/tommy-tuberville-t000278) | Sell | Cadence Design Systems, Inc. - Common Stock | joint | $1,001–$15,000 (bracket) | [source](https://efdsearch.senate.gov/search/view/ptr/0a25588d-a3f8-4ed6-971a-706097f78e3a/) |

## How to quote this

- Congressional amounts are STOCK Act brackets (e.g. $1,001–$15,000), not figures: quote the range, never a single number.
- Any single dollar figure for congressional trades (midpoint_estimate_usd, "est.") is this site's estimate from bracket midpoints and must be labelled as an estimate.
- Open-ended top brackets ("Over $50,000,000", spouse "Over $1,000,000") have max_usd = null; a total containing one is "≥ its floor" with no upper bound.
- amount.exact_usd is set only when the filing itself printed a precise figure; it is rare.
- Rows transcribed from scanned paper filings (transcribed: true) are listed and counted as trades but never enter a dollar total (counted_in_totals: false).
- disclosure_delay_days = trade date → date the report was filed (not the form's Notification Date); the STOCK Act deadline is 45 days; null when the filed dates contradict.

Full rules: https://www.fatcatwatch.com/llms-full.txt · Methodology: https://www.fatcatwatch.com/methodology