This is a routine 10b5-1 plan sale by the founder, not a discretionary insider sell signal. The plan was adopted nearly a year ago, and the selling cadence has been steady. No change in fundamental outlook is implied. Monitor for any deviation from the plan's schedule or an unexpected acceleration.
Price Chart
Executive Summary
David A. Duffield, Workday's founder and a 10% stockholder, filed a Form 144 on October 6, 2026, to sell 99,228 shares of common stock with an approximate market value of $18.75 million. The filing is part of a pre-arranged 10b5-1 trading plan, and Duffield has been executing consistent sales under this plan since at least July 2026, with recent trades totaling over $180 million in proceeds. This is a routine, pre-planned sale by a founder with no new negative signal.
Key Facts
- David A. Duffield (founder and 10% stockholder) filed Form 144 to sell 99,228 shares of Workday common stock.
- Estimated aggregate market value of proposed sale: $18,750,122.88.
- The sale is part of a 10b5-1 trading plan adopted on December 2, 2025.
- Duffield has been consistently selling under this plan since at least July 2026, with prior sales totaling over $180 million in proceeds.
- Broker: Morgan Stanley Smith Barney LLC Executive Financial Services.
Financial Impact
Proposed sale of 99,228 shares valued at ~$18.75 million, representing a small fraction of Duffield's total holdings and Workday's ~$60B+ market cap.
Risk Factors
- Continued insider selling, even under a plan, can create overhang sentiment if the market perceives it as a lack of confidence.
- No new company-specific financial or operational data was provided in this filing.
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-010077 |
| Document: 0001950047-26-010077-index.html | 0001950047-26-010077 |
| Document: 0001950047-26-010077.txt | 0001950047-26-010077 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 4d ago | 8-K | $208.50 $205.46 | ▼ −1.46% | ▼ −2.02% | $205.46 (−1.46%) |
Oct 22, 2026 5d ago | 424B5 | $209.99 $208.50 | ▼ −0.71% | ▼ −1.42% | $205.46 (−2.16%) |
Oct 21, 2026 6d ago | Press Release | $209.99 $209.99 | · 0.00% | ▲ +0.52% | $205.46 (−2.16%) |
Oct 21, 2026 6d ago | 424B5 | $202.96 $209.99 | ▲ +3.46% | ▲ +4.64% | $205.46 (+1.23%) |
Oct 20, 2026 7d ago | Institutional Cluster | $202.96 $209.99 | ▲ +3.46% | ▲ +4.64% | $205.46 (+1.23%) |
Oct 14, 2026 13d ago | Insider Cluster | $196.63 $190.81 | ▲ +2.96% | ▲ +1.85% | $205.46 (−4.49%) |
Oct 13, 2026 14d ago | 8-K | $186.02 $188.77 | ▲ +1.48% | ▲ +2.56% | $205.46 (+10.45%) |
Oct 13, 2026 14d ago | Press Release | $186.02 $188.77 | ▲ +1.48% | ▲ +2.56% | $205.46 (+10.45%) |
Oct 9, 2026 18d ago | 144 | $188.25 $186.02 | ▼ −1.18% | ▼ −1.17% | $205.46 (+9.14%) |
Oct 6, 2026 21d ago | 144 | $184.26 $187.81 | ▲ +1.93% | ▲ +2.35% | $205.46 (+11.51%) |
US Market Status
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