Duffield David A Insider Trades & Stock Holdings

10% Owner · Workday, Inc. · Latest filing Oct 9, 2026

Duffield David A, 10% Owner at Workday, Inc. has 6 Form 4 trades on file since Sep 18, 2026. Open-market activity: 0 purchases ($0) and 6 sales ($111.85M), net -$111.85M. Latest filing: disposed of 99.83K shares of $WDAY on Oct 9, 2026 at $187.55.

Trades on file

6

Open-market bought

$0

Open-market sold

$111.85M

Net open-market

-$111.85M

Latest filing

Oct 9, 2026

All insider trades by Duffield David A

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 9, 2026	$WDAY	Sell (Open-market sale) 10b5-1	99.83K	$187.55	$18.72M			+2.3%			10% Owner		Read
Oct 6, 2026	$WDAY	Sell (Open-market sale) 10b5-1	99.23K	$187.32	$18.59M			-0.3%			10% Owner		—
Oct 1, 2026	$WDAY	Sell (Open-market sale) 10b5-1	98.45K	$187.07	$18.42M			+0.6%			10% Owner		—
Sep 28, 2026	$WDAY	Sell (Open-market sale) 10b5-1	98.97K	$188.55	$18.66M			+0.2%			10% Owner		—
Sep 23, 2026	$WDAY	Sell (Open-market sale) 10b5-1	99.61K	$192.14	$19.14M			-1.0%			10% Owner		—
Sep 18, 2026	$WDAY	Sell (Open-market sale) 10b5-1	94.09K	$194.69	$18.32M			-2.3%			10% Owner		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Duffield David A traded

• $WDAY

Frequently asked questions

Has Duffield David A been buying or selling stock?

Duffield David A has 0 open-market purchases and 6 open-market sales on file, net -$111.85M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Duffield David A's latest insider trade?

disposed of 99.83K shares of $WDAY on Oct 9, 2026 at $187.55.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.