SEC Filing Analysis: Workday, Inc. (WDAY)

Executive Summary

• Trading Significance: Medium
• Key Takeaway: Co-founder and 10% owner David Duffield disposed of 99,613 shares of Class A Common Stock for approximately $19.13M pursuant to a pre-arranged Rule 10b5-1 trading plan.
• Market Impact: Neutral; transactions executed under programmatic 10b5-1 trading plans representing a negligible portion of total voting control and float generate minimal structural pressure.

Company Information

Field	Value
Company	Workday, Inc.
Ticker Symbol	WDAY
CIK	0001327811
Industry	Services-Computer Processing & Data Preparation

Insider Information

Field	Value
Name	David A. Duffield
CIK	0000938071
Title/Position	Co-Founder
Relationship	10% Owner

Transaction Details

Field	Value
Form Type	4
Transaction Date	2026-09-23
Transaction Code	S (Sale) / C (Conversion)
Security Type	Class A Common Stock
Shares Involved	99,613
Weighted Average Price	$192.05
Total Value	$19,130,551
Shares Owned After	105,049 Class A (Direct) + 35,877,231 Class B (Direct)
Ownership Type	Direct (David A. Duffield Trust)

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	$19,130,551
% of Market Cap	0.049%
Shares Transacted	99,613
% of Shares Outstanding	0.040%
Post-Transaction Ownership	35,982,280 shares total (~14.57% of outstanding)
Materiality Assessment	Low to Moderate based on market cap tier; Medium due to dollar volume

Impact Evaluation

• Market Cap Context: Against Workday's $39.05 billion market capitalization, a $19.13 million transaction represents 0.049% of enterprise equity value, falling well below the 0.1% threshold for material market disruption.
• Ownership Concentration: Duffield maintains significant control, retaining over 35.87 million Class B super-voting shares (14.5% of total outstanding common equity), demonstrating that this sale represents a tiny fraction (~0.28%) of his aggregate holding.
• Dilution Impact: None; the transaction reflects a 1:1 conversion of existing Class B Common Stock to Class A Common Stock followed by open market sales, resulting in zero net change to total shares outstanding.
• Transaction Significance: While substantial in nominal dollar terms, the trade is routine portfolio rebalancing under a pre-scheduled trading plan.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The sales were distributed across multiple price tranches ranging from $188.42 to $194.49 and were executed according to a Rule 10b5-1 plan adopted in December 2025, removing discretionary predictive signal.

Volume & Sentiment

• Expected Volume Impact: Negligible; 99,613 shares are easily absorbed by standard daily liquidity for WDAY.
• Sentiment Indicator: Neutral; executive and founder diversification via structured plans is standard practice.

Additional Context

Transaction Notes

• Timing: Executed on September 23, 2026, across six distinct pricing brackets.
• Special Circumstances: Conducted under a Rule 10b5-1 plan adopted by the David A. Duffield Trust on December 2, 2025. Shares were converted from Class B to Class A immediately prior to sale pursuant to standard dual-class conversion provisions.