David Duffield Insider Trading Activity
David Duffield has been net-selling over the last 12 months with 0 purchases and 139 sales across 1 company.
WDAY is the most-traded position with 139 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 | — | +6.7% | 78% | 144 |
| 90 days | — | +14.0% | 84% | 103 |
| 120 days | — | +21.6% | 97% | 94 |
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 144 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| Apr 9, 2026 | WDAY | Sell | 29,705 | $111.93 | $3.3M | 10%+ Owner |
| Apr 9, 2026 | WDAY | Sell | 1,900 | $113.71 | $216K | 10%+ Owner |
| Apr 9, 2026 | WDAY | Sell | 3,700 | $116.13 | $430K | 10%+ Owner |
| Apr 9, 2026 | WDAY | Sell | 3,200 | $115.16 | $369K | 10%+ Owner |
| Apr 9, 2026 | WDAY | Sell | 39,607 | $112.93 | $4.5M | 10%+ Owner |
| Apr 9, 2026 | WDAY | Sell | 29,388 | $111.06 | $3.3M | 10%+ Owner |
| Apr 6, 2026 | WDAY | Sell | 800 | $132.01 | $106K | 10%+ Owner |
| Apr 6, 2026 | WDAY | Sell | 74,430 | $129.61 | $9.6M | 10%+ Owner |
| Apr 6, 2026 | WDAY | Sell | 18,924 | $128.97 | $2.4M | 10%+ Owner |
| Apr 6, 2026 | WDAY | Sell | 13,346 | $130.29 | $1.7M | 10%+ Owner |
| Mar 31, 2026 | WDAY | Sell | 100 | $131.41 | $13K | 10%+ Owner |
| Mar 31, 2026 | WDAY | Sell | 13,887 | $130.67 | $1.8M | 10%+ Owner |
| Mar 31, 2026 | WDAY | Sell | 16,932 | $129.05 | $2.2M | 10%+ Owner |
| Mar 31, 2026 | WDAY | Sell | 72,781 | $129.84 | $9.4M | 10%+ Owner |
| Mar 31, 2026 | WDAY | Sell | 3,800 | $128.09 | $487K | 10%+ Owner |
| Mar 26, 2026 | WDAY | Sell | 2,200 | $130.18 | $286K | 10%+ Owner |
| Mar 26, 2026 | WDAY | Sell | 53,496 | $127.85 | $6.8M | 10%+ Owner |
| Mar 26, 2026 | WDAY | Sell | 32,727 | $128.40 | $4.2M | 10%+ Owner |
| Mar 26, 2026 | WDAY | Sell | 19,077 | $129.46 | $2.5M | 10%+ Owner |
| Mar 23, 2026 | WDAY | Sell | 2,500 | $134.66 | $337K | 10%+ Owner |
| Mar 23, 2026 | WDAY | Sell | 34,611 | $137.55 | $4.8M | 10%+ Owner |
| Mar 23, 2026 | WDAY | Sell | 48,797 | $136.89 | $6.7M | 10%+ Owner |
| Mar 23, 2026 | WDAY | Sell | 21,592 | $135.76 | $2.9M | 10%+ Owner |
| Mar 18, 2026 | WDAY | Sell | 10,700 | $131.35 | $1.4M | 10%+ Owner |
| Mar 18, 2026 | WDAY | Sell | 1,400 | $134.87 | $189K | 10%+ Owner |
| Mar 18, 2026 | WDAY | Sell | 62,150 | $132.37 | $8.2M | 10%+ Owner |
| Mar 18, 2026 | WDAY | Sell | 6,114 | $134.14 | $820K | 10%+ Owner |
| Mar 18, 2026 | WDAY | Sell | 27,136 | $133.07 | $3.6M | 10%+ Owner |
| Mar 13, 2026 | WDAY | Sell | 22,046 | $133.34 | $2.9M | 10%+ Owner |
| Mar 13, 2026 | WDAY | Sell | 41,934 | $132.25 | $5.5M | 10%+ Owner |
| Mar 13, 2026 | WDAY | Sell | 26,820 | $131.67 | $3.5M | 10%+ Owner |
| Mar 13, 2026 | WDAY | Sell | 2,544 | $135.14 | $344K | 10%+ Owner |
| Mar 13, 2026 | WDAY | Sell | 14,156 | $134.36 | $1.9M | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 4,300 | $140.02 | $602K | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 10 | $146.72 | $1K | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 590 | $146.33 | $86K | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 14,176 | $141.16 | $2.0M | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 2,100 | $145.16 | $305K | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 2,000 | $144.20 | $288K | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 31,693 | $142.78 | $4.5M | 10%+ Owner |
| Mar 10, 2026 | WDAY | Sell | 52,631 | $142.02 | $7.5M | 10%+ Owner |
| Mar 5, 2026 | WDAY | Sell | 11,475 | $148.18 | $1.7M | 10%+ Owner |
| Mar 5, 2026 | WDAY | Sell | 70,401 | $147.27 | $10.4M | 10%+ Owner |
| Mar 5, 2026 | WDAY | Sell | 22,649 | $146.42 | $3.3M | 10%+ Owner |
| Mar 5, 2026 | WDAY | Sell | 2,175 | $145.17 | $316K | 10%+ Owner |
| Mar 5, 2026 | WDAY | Sell | 800 | $148.81 | $119K | 10%+ Owner |
| Mar 2, 2026 | WDAY | Sell | 9,492 | $135.69 | $1.3M | 10%+ Owner |
| Mar 2, 2026 | WDAY | Sell | 30,557 | $134.98 | $4.1M | 10%+ Owner |
| Mar 2, 2026 | WDAY | Sell | 56,954 | $134.07 | $7.6M | 10%+ Owner |
| Mar 2, 2026 | WDAY | Sell | 10,497 | $133.29 | $1.4M | 10%+ Owner |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| WDAY | Workday, Inc. | 144 | $410.1M |
Other insiders at Workday, Inc.
8 other tracked filers at WDAY.