David Duffield Insider Trading Activity
David Duffield has been net-selling over the last 12 months with 0 purchases and 150 sales across 1 company.
WDAY is the most-traded position with 150 trades. The largest single transaction was a sale of WDAY for $11.9M on Dec 16, 2025.
Performance Scorecard
Forward stock performance after each transaction by David Duffield. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +5.4% | 74% | 153 |
| 90 days | — | +10.2% | 81% | 144 |
| 120 days | — | +16.2% | 86% | 125 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersWDAY · Workday, Inc.
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Showing the 50 most recent of 178 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Jul 9, 2026 | WDAY | Sell | 27,858 | $136.41 | $3.8M | −14.4% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 500 | $134.01 | $67K | −0.2% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 20,710 | $138.34 | $2.9M | −16.5% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 1,400 | $130.63 | $183K | −0.7% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 14,299 | $135.48 | $1.9M | −6.9% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 1,700 | $133.12 | $226K | −0.8% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 100 | $138.98 | $14K | −0.1% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 39,133 | $137.19 | $5.4M | −23.7% | 10%+ Owner | |
Jul 9, 2026 | WDAY | Sell | 1,800 | $132.07 | $238K | −0.9% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 100 | $138.30 | $14K | −0.1% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 3,417 | $135.80 | $464K | −2.0% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 7,098 | $134.65 | $956K | −4.1% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 15,869 | $136.90 | $2.2M | −9.6% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 43,583 | $137.75 | $6.0M | −29.3% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 13,550 | $130.81 | $1.8M | −6.4% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 2,106 | $129.82 | $273K | −1.0% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 7,953 | $132.73 | $1.1M | −4.3% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 11,348 | $131.79 | $1.5M | −5.8% | 10%+ Owner | |
Jul 6, 2026 | WDAY | Sell | 2,476 | $133.99 | $332K | −1.4% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 9,739 | $118.03 | $1.1M | −8.4% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 1,800 | $118.76 | $214K | −1.7% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 19,825 | $116.06 | $2.3M | −12.9% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 30,074 | $114.14 | $3.4M | −14.1% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 17,064 | $116.95 | $2.0M | −12.8% | 10%+ Owner | |
Jun 25, 2026 | WDAY | Sell | 28,998 | $114.98 | $3.3M | −15.9% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 49,759 | $112.92 | $5.6M | −25.3% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 16,008 | $112.08 | $1.8M | −7.5% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 6,920 | $114.15 | $790K | −4.7% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 7,033 | $114.94 | $808K | −5.0% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 3,900 | $116.16 | $453K | −2.9% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 7,602 | $118.15 | $898K | −6.4% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 4,151 | $119.05 | $494K | −3.7% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 1,540 | $119.84 | $185K | −1.4% | 10%+ Owner | |
Jun 22, 2026 | WDAY | Sell | 10,587 | $117.20 | $1.2M | −8.2% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 39,607 | $112.93 | $4.5M | −25.8% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 29,388 | $111.06 | $3.3M | −13.8% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 3,700 | $116.13 | $430K | −3.4% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 3,200 | $115.16 | $369K | −2.9% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 29,705 | $111.93 | $3.3M | −16.2% | 10%+ Owner | |
Apr 9, 2026 | WDAY | Sell | 1,900 | $113.71 | $216K | −1.7% | 10%+ Owner | |
Apr 6, 2026 | WDAY | Sell | 800 | $132.01 | $106K | −0.8% | 10%+ Owner | |
Apr 6, 2026 | WDAY | Sell | 74,430 | $129.61 | $9.6M | −38.4% | 10%+ Owner | |
Apr 6, 2026 | WDAY | Sell | 13,346 | $130.29 | $1.7M | −11.2% | 10%+ Owner | |
Apr 6, 2026 | WDAY | Sell | 18,924 | $128.97 | $2.4M | −8.9% | 10%+ Owner | |
Mar 31, 2026 | WDAY | Sell | 100 | $131.41 | $13K | −0.1% | 10%+ Owner | |
Mar 31, 2026 | WDAY | Sell | 13,887 | $130.67 | $1.8M | −11.7% | 10%+ Owner | |
Mar 31, 2026 | WDAY | Sell | 72,781 | $129.84 | $9.4M | −37.9% | 10%+ Owner | |
Mar 31, 2026 | WDAY | Sell | 16,932 | $129.05 | $2.2M | −8.1% | 10%+ Owner | |
Mar 31, 2026 | WDAY | Sell | 3,800 | $128.09 | $487K | −1.8% | 10%+ Owner | |
Mar 26, 2026 | WDAY | Sell | 53,496 | $127.85 | $6.8M | −25.2% | 10%+ Owner |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| WDAY | Workday, Inc. | 178 | $464.0M |
Other insiders at Workday, Inc.
8 other tracked filers at WDAY.