$WDAY

DUFFIELD DAVID A sold $18.7M of WDAY

DUFFIELD DAVID A sold 99,835 shares of Workday, Inc. (WDAY) at an average of $187.55 ($186.36–$190.96, $18.72M total) across 6 trades on 2026-10-09 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · DUFFIELD DAVID A
Published Oct 13, 2026, 10:03 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 13, 2026, 10:08 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$WDAY
Bearish
medium confidence
Mentioned
$WDAY
Relevance
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$WDAYBearishLow
01

Why it matters

The insider sale provides fresh data on ownership changes, which can affect short‑term price dynamics.

02

Market read

New insider sell of $18.7M may prompt traders to reassess Workday's valuation in the near term.

03

What to watch

Duffield's 10b5‑1 plan may have been set months ago; the timing may not reflect current sentiment.

Relevance 6/10Novelty 6/10Timing: after‑hours filing

Background

SEC Form 4 filing discloses insider transactions, a primary source of corporate news.

Company-level read

Ticker impact

$WDAYBearishMedium confidence
Context

Form 4 shows insider David Duffield sold $18.7M of Workday shares via a 10b5‑1 plan, reducing his stake to 105,049 shares.

Expected impact

downward pressure as investors price in the insider sale

Evidence & confidence

The sale is sizable for a single insider and executed through a pre‑arranged plan, suggesting a potential negative outlook.

Market effects

May weigh on the broader enterprise‑software sector as insider sells can be interpreted as a bearish signal.

Limited to U.S. markets where Workday trades.

Minimal global impact beyond investors tracking large‑cap SaaS stocks.

Counterpoint

The sale could be purely portfolio rebalancing unrelated to company fundamentals, so the stock may remain stable.

Key entities

  • Workday, Inc.

    Provider of cloud‑based finance and HR software.

  • David A. Duffield

    Co‑founder and 10% owner of Workday.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$WDAYHigh

Workday (WDAY) Announces $2.5 Billion Senior Notes Offering Amid

Workday (WDAY) announced a $2.5 billion senior notes offering with tranches maturing between 2029 and 2036. The company's stock is trading at $202.96, 37.9% below its GF Value™ of $327.07, indicating undervaluation. Workday has a GF Score™ of 84, reflecting strong financial health and growth potential. Insiders have sold $556.6 million in shares over the past year, while institutional interest remains robust.

$WDAYMed

Workday prices $2.5B senior notes offering

Workday priced a $2.5B senior notes offering, including $750M due 2029 at 5.700%, $500M due 2031 at 6.000%, $750M due 2033 at 6.300%, and $500M due 2036 at 6.500%. The offering is expected to close on October 23, 2026, according to a filing.