EB
Elizabeth Buse
Director

Elizabeth Buse insider trades: F5 (FFIV) stock buys and sales

Director, F5 Last trade Jun 10, 2026 53 Form 4 filings
$399K
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
16
Open-market trades
since 2008
5
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Elizabeth reports to the SEC

Open-market buys and sales

16 trades reported on SEC Form 4, newest first

DateStockTypeValue
Jun 10, 2026FFIV↓ Sell$399K
Jun 11, 2025FFIV↓ Sell$440K
Feb 18, 2014V↓ Sell$1.4M
Dec 2, 2013V↓ Sell$907K
Nov 20, 2013V↓ Sell$1.5M
Nov 8, 2013V↓ Sell$267K
Aug 26, 2013V↓ Sell$3.1M
Dec 4, 2012V↓ Sell$804K
Nov 6, 2012V↓ Sell$242K
Sep 6, 2012V↓ Sell$1.9M
Aug 6, 2012V↓ Sell$1.9M
Jul 3, 2012V↓ Sell$1.8M
Feb 1, 2012V↓ Sell$2.0M
Dec 2, 2011V↓ Sell$132K
Feb 12, 2010V↓ Sell$2.7M
Mar 25, 2008V↑ Buy$198K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other FFIV insiders

Open-market trades in the last 12 months

About Elizabeth Buse's insider trades

Elizabeth Buse is a director at F5 (FFIV). Since Mar 25, 2008, Elizabeth has reported 1 open-market purchase worth $198K and 15 sales worth $19.5M on SEC Form 4. In the last 12 months: 1 sale ($399K).

Their filings also include grants and awards (34 filings), option exercises (21 filings), shares withheld for taxes (4 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every FFIV insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.