CapitolRadar tracks every publicly disclosed WDC trade by US congress members and corporate insiders: 25 disclosed trades (15 buys, 10 sells) by 4 tracked traders, from 2020-04-08 to 2026-09-25. Updated daily from official filings.
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Western Digital Corporation (WDC) — Technology · Computer Hardware, market cap about $124.6B.
CapitolRadar analysis
25 disclosures split 15 buys to 10 sells
Western Digital Corporation (WDC), in the Technology / Computer Hardware category, recorded 25 tracked trades by four distinct traders from April 8, 2020 through September 25, 2026. Buys represented 15 transactions, or 60% of the total, while the remaining 10 were sells. That produces a modest buy tilt across the full period, but the sample is small and spread across more than six years.
The busiest listed quarter was 2022 Q2, with seven trades: five buys and two sells. Activity then moderated to two trades in 2022 Q3 and three in 2022 Q4, followed by three in 2023 Q1 and one in 2023 Q2. More recently, the data shows one buy in 2026 Q2 and three trades—two buys and one sell—in 2026 Q3. The quarters itemized here account for 21 of the 25 tracked trades, so they do not provide a complete quarter-by-quarter breakdown of the full total.
8 of 15 buys came from Ro Khanna
Ro Khanna accounted for eight WDC buys, more than half of all tracked purchases, with the latest dated September 25, 2026. Diana Harshbarger and Susie Lee each recorded three buys, most recently on September 26, 2022 and April 28, 2020, respectively. Gilbert Cisneros recorded one buy, dated July 17, 2026. Because only four traders appear in the dataset, individual activity has an outsized effect on the aggregate pattern.
Six other tickers overlap across two buyers each
Among these WDC buyers, two also bought PWR, two bought TSM, and two bought each of ABT, COIN, NXPI and PLTR. These overlaps indicate shared participation only; the small counts do not establish a broader trading pattern.
Disclosure timing is an important limitation: reported trades may appear with a lag of up to 45 days, so filing dates do not necessarily reflect real-time activity. Transaction values disclosed as amount ranges are estimates rather than exact figures, and no dollar totals are presented here.
Analysis written from the tracked record on 2026-10-14; it is refreshed whenever the underlying numbers change.
Activity by quarter
| Quarter | Disclosed trades | Buys | Sells |
|---|---|---|---|
| 2026 Q3 | 3 | 2 | 1 |
| 2026 Q2 | 1 | 1 | 0 |
| 2023 Q2 | 1 | 0 | 1 |
| 2023 Q1 | 3 | 2 | 1 |
| 2022 Q4 | 3 | 1 | 2 |
| 2022 Q3 | 2 | 1 | 1 |
| 2022 Q2 | 7 | 5 | 2 |
| 2022 Q1 | 1 | 0 | 1 |
Who is buying WDC?
| Trader | Disclosed buys | Last buy | Grade |
|---|---|---|---|
| Ro Khanna | 8 | 2026-09-25 | — |
| Diana Harshbarger | 3 | 2022-09-26 | — |
| Susie Lee | 3 | 2020-04-28 | — |
| Gilbert Cisneros | 1 | 2026-07-17 | — |
Disclosed trades in WDC
| Date | Who | Type | Amount | 30d vs SPY |
|---|---|---|---|---|
| 2026-09-25 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2026-09-18 | Gilbert Cisneros | sell | $1,001 - $15,000 | — |
| 2026-07-17 | Gilbert Cisneros | buy | $1,001 - $15,000 | — |
| 2026-04-13 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2023-04-25 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2023-03-24 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2023-03-14 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2023-01-09 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2022-12-06 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2022-11-03 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2022-11-02 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2022-09-26 | Diana Harshbarger | buy | $1,001 - $15,000 | — |
| 2022-08-18 | Diana Harshbarger | sell | $1,001 - $15,000 | — |
| 2022-06-17 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2022-06-16 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2022-05-23 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2022-05-16 | Diana Harshbarger | buy | $1,001 - $15,000 | — |
| 2022-05-12 | Diana Harshbarger | buy | $1,001 - $15,000 | — |
| 2022-05-10 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2022-05-05 | Ro Khanna | buy | $1,001 - $15,000 | — |
CapitolRadar signal history
NEW PICK 2026-09-09
Rep. Gilbert Ray Cisneros disclosed buying $1,001 to $15,000 of Western Digital stock. The panel passed mainly because he has no verified trading history against the S&P 500, leaving this purchase as an unproven signal. A documented record of similar trades outperforming the market would have provided the strongest evidence to change the verdict, though the 53-day disclosure delay remains a caveat.
NEW PICK 2026-09-07
Rep. Gilbert Cisneros disclosed a $1,001–$15,000 purchase of Western Digital stock. The trade fell short mainly because Cisneros has no verified record of beating SPY, leaving the signal unproven and unsupported by other recent tracked buyers. A verified history of strong results or a cluster of independent WDC purchases could have changed the verdict, though the future-dated filing details still require confirmation.
These buyers also bought
Other stocks the tracked buyers of WDC disclosed buying in the last six months: IBM (2) · MRVL (2) · NVDA (2) · APP (2) · FERG (2) · ON (2).
About Western Digital Corporation
Western Digital Corporation designs, manufactures, and markets a broad range of data storage devices and software solutions across the United States, China, Hong Kong, Europe, the Middle East, Africa, and the rest of Asia, serving an international market. The company's product lineup includes client devices such as hard disk drives (HDDs) and solid-state drives (SSDs) for computing platforms like desktops, notebooks, smart video systems, gaming consoles, and set-top boxes. They also provide flash-based embedded storage solutions for mobile phones, tablets, laptops, and various portable and wea…
Frequently asked questions
Which politicians bought WDC most?
Ro Khanna leads with 8 disclosed buys, followed by Diana Harshbarger.
How current is this page?
It re-renders from the tracked record on every view and new filings are ingested daily — but STOCK Act disclosures can lag the trade by up to 45 days, so the most recent weeks are always incomplete.
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CapitolRadar tracks publicly disclosed trades (STOCK Act filings and SEC Form 4). Disclosures can lag the trade by up to 45 days. Backtests measure past disclosed buys against the S&P 500 and do not predict future results. Everything on this page is impersonal information for your own research — not investment advice.