Quick Takeaways
- David A. Duffield has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $9,342,342,373.
- Recent insider filing activity is available below.
- Info
- Significant Ownership
- Insider Ownership
Insider Trading & Ownership of David A. Duffield
- Location
- Pleasanton, CA
- Summary
- The estimated net worth of David A. Duffield is at least $9,342,342,373 dollars as of 13 Apr 2026. David A. Duffield is the 10%+ Owner of Workday, Inc. and owns shares of Workday, Inc. (WDAY) stock worth about $9.34B.
- Signature
- /s/ Richard H. Sauer, attorney-in-fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow David A. Duffield and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: Workday, Inc. ($9,342,342,373).
- Past-year value change for that position: -$410,058,487.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of David A. Duffield
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| WDAY | Workday, Inc. | 10%+ Owner | $9,342,342,373 | -$410,058,487 | -4.2% | 09 Apr 2026 |
Insider Transactions Reported by David A. Duffield:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.