Jeffrey William Henderson insider trades: Halozyme Therapeutics (HALO) stock buys and sales
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
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 28, 2025 | HALO | ↓ Sell | 4,497 | $60.37 | $271K | Direct | Apr 28, 2025 (0d) |
| Apr 1, 2025 | HALO | ↓ Sell | 503 | $64.05 | $32K | Direct | Apr 1, 2025 (0d) |
| Mar 3, 2025 | HALO | ↓ Sell | 5,000 | $58.69 | $293K | Direct | Mar 3, 2025 (0d) |
| Feb 10, 2025 | BDX | ↑ Buy | 1,500 | $233.62 | $350K | Direct | Feb 10, 2025 (0d) |
| Feb 3, 2025 | HALO | ↓ Sell | 5,000 | $56.30 | $282K | Direct | Feb 4, 2025 (1d) |
| Jan 6, 2025 | HALO | ↓ Sell | 10,000 | $50.01 | $500K | Direct | Jan 7, 2025 (1d) |
| Sep 1, 2023 | FGEN | ↓ Sell10b5-1 | 2,000 | $1.03 | $2K | Direct | Sep 6, 2023 (5d) |
| Aug 4, 2023 | FGEN | ↓ Sell10b5-1 | 2,000 | $1.91 | $4K | Direct | Aug 8, 2023 (4d) |
| Jul 11, 2023 | FGEN | ↓ Sell10b5-1 | 2,000 | $2.69 | $5K | Direct | Jul 13, 2023 (2d) |
| Jun 8, 2023 | FGEN | ↓ Sell10b5-1 | 7,000 | $17.46 | $122K | Direct | Jun 9, 2023 (1d) |
| Mar 1, 2023 | HALO | ↓ Sell | 20,000 | $48.11 | $962K | Direct | Mar 1, 2023 (0d) |
| Feb 23, 2023 | QCOM | ↓ Sell | 5,000 | $124.12 | $621K | Direct | Feb 24, 2023 (1d) |
| Nov 25, 2020 | HALO | ↓ Sell | 24,498 | $40.08 | $982K | Direct | Nov 25, 2020 (0d) |
| Nov 10, 2020 | QCOM | ↓ Sell | 6,000 | $141.10 | $847K | Direct | Nov 12, 2020 (2d) |
| Aug 27, 2014 | CAH | ↓ Sell | 26,567 | $72.63 | $1.9M | Direct | Aug 28, 2014 (1d) |
| Aug 18, 2014 | CAH | ↓ Sell | 78,637 | $72.06 | $5.7M | Direct | Aug 19, 2014 (1d) |
| Aug 8, 2014 | CAH | ↓ Sell | 118,093 | $69.72 | $8.2M | Direct | Aug 11, 2014 (3d) |
| Jul 14, 2014 | CAH | ↓ Sell | 23,632 | $70.65 | $1.7M | Direct | Jul 15, 2014 (1d) |
| May 7, 2014 | CAH | ↓ Sell | 27,031 | $63.83 | $1.7M | Direct | May 8, 2014 (1d) |
| Feb 3, 2014 | CAH | ↓ Sell | 253,190 | $67.19 | $17.0M | Direct | Feb 5, 2014 (2d) |
| Aug 13, 2013 | CAH | ↓ Sell | 54,590 | $51.99 | $2.8M | Direct | Aug 15, 2013 (2d) |
| Jul 26, 2013 | CAH | ↓ Sell | 76,781 | $50.99 | $3.9M | Direct | Jul 29, 2013 (3d) |
| Jul 18, 2013 | CAH | ↓ Sell | 57,623 | $49.99 | $2.9M | Direct | Jul 22, 2013 (4d) |
| Jul 15, 2013 | CAH | ↓ Sell | 14,660 | $49.99 | $733K | Direct | Jul 17, 2013 (2d) |
| Jul 11, 2013 | CAH | ↓ Sell | 83,211 | $48.99 | $4.1M | Direct | Jul 15, 2013 (4d) |
| May 6, 2013 | CAH | ↓ Sell | 207,918 | $46.18 | $9.6M | Direct | May 8, 2013 (2d) |
| Oct 4, 2012 | CAH | ↓ Sell | 46,226 | $40.00 | $1.8M | Direct | Oct 9, 2012 (5d) |
| Sep 10, 2012 | CAH | ↓ Sell | 77,081 | $38.29 | $3.0M | Direct | Sep 11, 2012 (1d) |
| Sep 7, 2012 | CAH | ↓ Sell | 2,329 | $39.39 | $92K | By ESPP | Sep 11, 2012 (4d) |
| May 19, 2011 | CAH | ↓ Sell | 57,854 | $45.25 | $2.6M | Direct | May 20, 2011 (1d) |
| Apr 26, 2011 | CAH | ↓ Sell | 59,035 | $43.00 | $2.5M | Direct | Apr 27, 2011 (1d) |
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.