HT
Helen Torley
President and CEODirector

Helen Torley insider trades: Halozyme Therapeutics (HALO) stock buys and sales

President and CEO, Halozyme Therapeutics Last trade Oct 8, 2026 120 Form 4 filings
$42.1M
Sold, last 12 months
12 sales
$0
Bought, last 12 months
0 buys
52
Open-market trades
since 2012
4
Companies
last trade 2026

Trades on the price chart

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

Companies

Where Helen reports to the SEC

Open-market buys and sales

52 trades reported on SEC Form 4, newest first

DateStockTypeValue
Oct 8, 2026HALO↓ Sell$6.6M
Sep 11, 2026HALO↓ Sell$6.4M
Aug 19, 2026HALO↓ Sell$6.3M
Jul 8, 2026HALO↓ Sell$153K
Jun 3, 2026HALO↓ Sell$3.4M
May 13, 2026HALO↓ Sell$3.4M
Apr 6, 2026HALO↓ Sell$635K
Apr 2, 2026HALO↓ Sell$2.6M
Mar 4, 2026HALO↓ Sell$3.5M
Feb 5, 2026HALO↓ Sell$3.9M
Dec 1, 2025HALO↓ Sell$1.1M
Nov 12, 2025HALO↓ Sell$4.2M
Oct 3, 2025HALO↓ Sell$4.3M
Sep 4, 2025HALO↓ Sell$4.4M
Aug 13, 2025HALO↓ Sell$3.8M
Jul 10, 2025HALO↓ Sell$3.4M
Jun 24, 2025HALO↓ Sell$3.2M
Oct 9, 2024HALO↓ Sell$1.1M
Sep 26, 2024HALO↓ Sell$1.7M
Sep 12, 2024HALO↓ Sell$1.8M
Aug 15, 2024HALO↓ Sell$1.7M
Aug 31, 2023HALO↓ Sell$1.3M
Aug 17, 2023HALO↓ Sell$1.3M
Jul 27, 2023HALO↓ Sell$1.3M
Mar 9, 2023HALO↓ Sell$1.3M
Feb 16, 2023HALO↓ Sell$545K
Feb 9, 2023HALO↓ Sell$1.5M
Jan 19, 2023HALO↓ Sell$1.5M
Dec 15, 2022HALO↓ Sell$1.7M
Nov 17, 2022HALO↓ Sell$1.6M
Nov 8, 2021HALO↓ Sell$2.0M
Oct 4, 2021HALO↓ Sell$2.0M
Sep 7, 2021HALO↓ Sell$2.1M
Aug 10, 2021HALO↓ Sell$2.1M
Jul 6, 2021HALO↓ Sell$2.3M
Jun 7, 2021HALO↓ Sell$2.0M
May 11, 2021HALO↓ Sell$2.2M
Apr 5, 2021HALO↓ Sell$2.1M
Mar 1, 2021HALO↓ Sell$2.3M
Feb 1, 2021HALO↓ Sell$2.4M
Nov 25, 2020HALO↓ Sell$2.0M
Jun 7, 2016RLYP↓ Sell$20K
Sep 16, 2014HALO↑ Buy$446K
Aug 12, 2013ONXX↓ Sell10b5-1$1.2M
May 13, 2013ONXX↓ Sell10b5-1$810K
Apr 1, 2013ONXX↓ Sell10b5-1$40K
Feb 4, 2013ONXX↓ Sell10b5-1$649K
Nov 12, 2012ONXX↓ Sell10b5-1$902K
Oct 4, 2012ONXX↓ Sell$200K
Sep 4, 2012ONXX↓ Sell$137K

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 Helen Torley's insider trades

Helen Torley is President and CEO at Halozyme Therapeutics (HALO). Since Jul 25, 2012, Helen has reported 1 open-market purchase worth $446K and 51 sales worth $107.6M on SEC Form 4. In the last 12 months: 12 sales ($42.1M).

5 sales (3% 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 option exercises (78 filings), shares withheld for taxes (32 filings), grants and awards (32 filings), gifts (5 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.