WDC insider trading

SEC Form 4 transactions reported by Western Digital Corporation insiders, officers, directors, and 10%+ beneficial owners. Sourced from EDGAR.

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Recent WDC insider transactions

The 20 most recent non-derivative Form 4 transactions reported by Western Digital Corporation insiders. Buys are highlighted; the transaction code column matches SEC Form 4 codes (P = open-market purchase, S = sale, A = grant, M = option exercise, F = tax withholding).

Date	Code	Insider	Role	Shares	Price	Value
2026-09-04	S	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	432	$451	$195K
2026-09-04	S	Gubbi Vidyadhara K	Chief of Global Operations	1,795	$460	$825K
2026-09-03	M	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	7	n/a
2026-09-03	F	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	700	$442	$309K
2026-09-03	F	Gubbi Vidyadhara K	Chief of Global Operations	1,764	$442	$779K
2026-09-03	M	Gubbi Vidyadhara K	Chief of Global Operations	14	n/a
2026-09-03	F	Davis Brian Scott	Chief Sales & Mrktng Officer	882	$442	$389K
2026-09-03	M	Davis Brian Scott	Chief Sales & Mrktng Officer	7	n/a
2026-09-01	G	Tan Irving	Chief Executive Officer, Director	112,500	n/a
2026-09-01	G	Tan Irving	Chief Executive Officer, Director	112,500	n/a
2026-09-01	S	STREETER STEPHANIE A	Director	1,600	$455	$728K
2026-08-31	J	Tan Irving	Chief Executive Officer, Director	112,500	n/a
2026-08-31	J	Tan Irving	Chief Executive Officer, Director	112,500	n/a
2026-08-31	S	STREETER STEPHANIE A	Director	2,000	$447	$894K
2026-08-31	S	STREETER STEPHANIE A	Director	2,000	$449	$897K
2026-08-27	S	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	1,007	$478	$482K
2026-08-26	M	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	9	n/a
2026-08-26	S	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	476	$451	$215K
2026-08-26	F	Tregillis Cynthia L	Chief Legal Officer & Corp Sec	1,631	$469	$765K
2026-08-26	F	Tan Irving	Chief Executive Officer, Director	3,314	$469	$1.6M

Why WDC filings on EdgarKit beat the alternatives

Real-time, not batched. Yahoo Finance and most aggregators batch the SEC daily index. EdgarKit polls EDGAR every 30 seconds, so new WDC filings appear here within a minute of SEC acceptance.
Developer-ready JSON. Whalewisdom and OpenInsider give you HTML tables you can read but not parse cleanly. Every transaction shown above is also available as structured JSON via the API.
Full transaction codes. Yahoo collapses Form 4 lines into 'Buy' / 'Sell'. We keep the raw transaction code (P, S, A, M, F, etc.) so you can filter compensation noise out of trading signal.
Footnote text preserved. Rule 10b5-1 plan references, indirect ownership disclosures, and gift transfers are all retained in the API response, not stripped.
Free tier covers it. 1,000 API calls/month, no credit card. Most ticker-specific workflows fit comfortably in free.

What insider trading data covers for WDC

Western Digital Corporation (CIK 106040) reports Section 16 insider transactions on Form 4 within two business days. Each filing carries the transaction date, transaction code (P for open-market purchase, S for sale, M for option exercise, F for tax withholding), shares, price, and post-transaction holdings. Optional footnotes disclose Rule 10b5-1 plan references and indirect ownership relationships.

How to interpret WDC insider activity

Treat each filing line through three filters: the transaction code, the role of the filer (officer carries more signal than director), and the dollar value relative to the company's market cap. Open-market purchases (P) by C-suite officers carry the strongest bullish signal. Sales (S) referencing a Rule 10b5-1 plan in the footnotes are pre-arranged and should be discounted. See how to read a Form 4 for the full walkthrough.

Get WDC insider data via API

Pull recent WDC Form 4 filings, filtered to open-market purchases above $100k:

curl "https://api.edgarkit.com/v1/filings?ticker=WDC&form_type=4&transaction_code=P&min_value=100000&limit=20" \
  -H "Authorization: Bearer YOUR_API_KEY"

Subscribe via webhook to receive every new WDC Form 4 in real time:

curl -X POST "https://api.edgarkit.com/v1/webhooks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://your-server.com/edgarkit-events",
    "filters": {"form_types": ["4"], "tickers": ["WDC"]}
  }'

Cluster buying detection for WDC

The strongest insider signal at the issuer level is cluster buying: three or more distinct insiders placing open-market purchases within a 7-14 day window. For the complete pattern detector, see how to detect insider cluster buying.