JH
Jeffrey William Henderson
Director

Jeffrey William Henderson insider trades: Halozyme Therapeutics (HALO) stock buys and sales

Director, Halozyme Therapeutics Last trade Apr 28, 2025 102 Form 4 filings
$0
Sold, last 12 months
0 sales
$0
Bought, last 12 months
0 buys
31
Open-market trades
since 2011
5
Companies
last trade 2025

Trades on the price chart

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

Companies

Where Jeffrey reports to the SEC

Open-market buys and sales

31 trades reported on SEC Form 4, newest first

DateStockTypeValue
Apr 28, 2025HALO↓ Sell$271K
Apr 1, 2025HALO↓ Sell$32K
Mar 3, 2025HALO↓ Sell$293K
Feb 10, 2025BDX↑ Buy$350K
Feb 3, 2025HALO↓ Sell$282K
Jan 6, 2025HALO↓ Sell$500K
Sep 1, 2023FGEN↓ Sell10b5-1$2K
Aug 4, 2023FGEN↓ Sell10b5-1$4K
Jul 11, 2023FGEN↓ Sell10b5-1$5K
Jun 8, 2023FGEN↓ Sell10b5-1$122K
Mar 1, 2023HALO↓ Sell$962K
Feb 23, 2023QCOM↓ Sell$621K
Nov 25, 2020HALO↓ Sell$982K
Nov 10, 2020QCOM↓ Sell$847K
Aug 27, 2014CAH↓ Sell$1.9M
Aug 18, 2014CAH↓ Sell$5.7M
Aug 8, 2014CAH↓ Sell$8.2M
Jul 14, 2014CAH↓ Sell$1.7M
May 7, 2014CAH↓ Sell$1.7M
Feb 3, 2014CAH↓ Sell$17.0M
Aug 13, 2013CAH↓ Sell$2.8M
Jul 26, 2013CAH↓ Sell$3.9M
Jul 18, 2013CAH↓ Sell$2.9M
Jul 15, 2013CAH↓ Sell$733K
Jul 11, 2013CAH↓ Sell$4.1M
May 6, 2013CAH↓ Sell$9.6M
Oct 4, 2012CAH↓ Sell$1.8M
Sep 10, 2012CAH↓ Sell$3.0M
Sep 7, 2012CAH↓ Sell$92K
May 19, 2011CAH↓ Sell$2.6M
Apr 26, 2011CAH↓ Sell$2.5M

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

Other HALO insiders

Open-market trades in the last 12 months

About Jeffrey William Henderson's insider trades

Jeffrey William Henderson is a director at Halozyme Therapeutics (HALO). Since Apr 26, 2011, Jeffrey has reported 1 open-market purchase worth $350K and 30 sales worth $75.3M on SEC Form 4. There have been no open-market trades in the last 12 months.

4 sales (0% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.

Their filings also include grants and awards (55 filings), option exercises (23 filings), shares withheld for taxes (18 filings), shares returned to the company (7 filings). 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 HALO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.