Western Digital Cp (WDC): Congress and insider trades
Who in Congress and inside the company traded WDC, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Western Digital Cp (WDC) is a listed stock on NASDAQ.
- 5 members of Congress filed 36 buys and 16 sells of WDC, the latest published 2026-09-07 (7 September 2026).
- Insiders filed 0 open market buys worth $0 and 23 sells worth $33M, the latest filed 2026-09-08 (8 September 2026).
- Across 14 scored buys, Congress averaged -1.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 29% of them ahead of the index. That result is not distinguishable from luck.
- Data as of 2026-09-29 (29 September 2026).
Congress buys 36 5 members
Congress sells 16
Insider buys 0 $0
Insider sells 23 $33M
Congress buys vs S&P, 90d -1.8% 14 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys
Congress trades in WDC
as of 2026-09-07| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 7 Sep 2026 | Gil Cisneros (D-CA) | buy | 1K–15K | 49 | n/a |
| 21 Jul 2026 | Alan Armstrong (R-OK) | buy | 1K–15K | 116 | n/a |
| 13 May 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 28 | -10.7% |
| 9 Apr 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 15 | n/a |
| 12 Mar 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 32 | n/a |
| 15 May 2025 | Ro Khanna (D-CA) | buy | 1K–15K | 19 | +43.9% |
| 9 May 2025 | Jefferson Shreve (R-IN) | buy | 15K–50K | 21 | +51.7% |
| 10 May 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 13 | n/a |
| 12 Apr 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 14 | -4.1% |
| 12 Apr 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 24 | n/a |
| 9 Feb 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 29 | -25.7% |
| 4 Jan 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 28 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 33 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 34 | +6.4% |
| 7 Nov 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 33 | +7.9% |
| 7 Nov 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 33 | +7.9% |
| 7 Nov 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 33 | +7.9% |
| 5 Sep 2022 | Diana Harshbarger (R-TN) | sell | 1K–15K | 13 | n/a |
| 5 Sep 2022 | Diana Harshbarger (R-TN) | sell | 1K–15K | 13 | n/a |
| 5 Sep 2022 | Diana Harshbarger (R-TN) | sell | 1K–15K | 13 | n/a |
| 11 Jul 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 20 | n/a |
| 11 Jul 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 21 | n/a |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 36 | -25.4% |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | -25.4% |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | -25.4% |
| 3 Jun 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 14 | -25.9% |
| 3 Jun 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 14 | -25.9% |
| 3 Jun 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 14 | -25.9% |
| 3 Jun 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 10 | -25.9% |
| 11 Mar 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 22 | n/a |
| 8 Dec 2021 | Ro Khanna (D-CA) | sell | 1K–15K | 28 | n/a |
| 8 Dec 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 35 | -8.6% |
| 10 Nov 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 33 | -6.4% |
| 15 Oct 2021 | Ro Khanna (D-CA) | sell | 1K–15K | 16 | n/a |
| 23 Sep 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 21 | n/a |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 29 | -7.8% |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 30 | -7.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 191 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 192 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 165 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 165 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 191 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 192 | -8.8% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 191 | -8.8% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 181 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 180 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 181 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 154 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 154 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 180 | -11.3% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 180 | -11.3% |
| 17 Dec 2020 | Ro Khanna (D-CA) | sell | 1K–15K | 43 | n/a |
Nothing matches that search.
Insider trades in WDC
as of 2026-09-08| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 8 Sep 2026 | Gubbi Vidyadhara K | sell | 1,795 | $459.87 | $825K | n/a |
| 8 Sep 2026 | Tregillis Cynthia L | sell | 432 | $451.20 | $195K | n/a |
| 2 Sep 2026 | STREETER STEPHANIE A | sell | 1,600 | $455.00 | $728K | n/a |
| 2 Sep 2026 | STREETER STEPHANIE A | sell | 4,000 | $447.82 | $1.8M | n/a |
| 27 Aug 2026 | Tregillis Cynthia L | sell | 1,007 | $478.36 | $482K | n/a |
| 27 Aug 2026 | Tregillis Cynthia L | sell | 476 | $450.78 | $215K | n/a |
| 24 Aug 2026 | Tregillis Cynthia L | sell | 235 | $477.27 | $112K | n/a |
| 24 Aug 2026 | Tregillis Cynthia L | sell | 684 | $446.17 | $305K | n/a |
| 12 Aug 2026 | Tan Irving | sell | 20,000 | $444.97 | $8.9M | n/a |
| 29 Jul 2026 | Cole Martin I | sell | 192 | $462.77 | $88.9K | n/a |
| 29 Jul 2026 | Cole Martin I | sell | 3,808 | $448.66 | $1.7M | n/a |
| 21 Jul 2026 | Tregillis Cynthia L | sell | 808 | $529.63 | $428K | n/a |
| 11 Jun 2026 | Cole Martin I | sell | 3,280 | $511.16 | $1.7M | n/a |
| 11 Jun 2026 | Cole Martin I | sell | 720 | $536.01 | $386K | n/a |
| 2 Jun 2026 | Gubbi Vidyadhara K | sell | 2,475 | $556.24 | $1.4M | n/a |
| 29 May 2026 | KIDDOO BRUCE E | sell | 750 | $528.52 | $396K | n/a |
| 27 May 2026 | Tregillis Cynthia L | sell | 214 | $539.63 | $115K | n/a |
| 27 May 2026 | Tregillis Cynthia L | sell | 308 | $488.61 | $150K | n/a |
| 22 May 2026 | Tregillis Cynthia L | sell | 106 | $458.87 | $48.6K | n/a |
| 5 May 2026 | Gubbi Vidyadhara K | sell | 4,674 | $443.19 | $2.1M | n/a |
| 5 May 2026 | Tan Irving | sell | 20,000 | $411.84 | $8.2M | n/a |
| 22 Apr 2026 | Tregillis Cynthia L | sell | 363 | $377.09 | $137K | n/a |
| 10 Mar 2026 | Gubbi Vidyadhara K | sell | 8,518 | $255.32 | $2.2M | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought WDC?
36 Congress buys by 5 members and 0 insider buys are on file. The tables on this page list every one.
Did buying WDC after a disclosure beat the market?
Across 14 scored buys, Congress averaged -1.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 29% of them ahead of the index. That result is not distinguishable from luck. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.