About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
HALOZYME THERAPEUTICS, INC. (HALO): Insider Trades and Fund Holdings
In the past 12 months, HALOZYME THERAPEUTICS, INC. insiders reported no open-market purchases and 15 sales worth $22.9M; 15 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Oct 8, 2026Insider saleCEO Helen Torley sold $2.2 million under a 10b5-1 plan (8 days after: executive or director change)
- Oct 7, 2026Insider saleCEO Helen Torley sold $2.2 million under a 10b5-1 plan (7 days after: executive or director change)
- Oct 6, 2026Insider saleCEO Helen Torley sold $2.2 million under a 10b5-1 plan (6 days after: executive or director change)
- Oct 1, 2026Insider saleDirector Matthew L. Posard sold $567,661 under a 10b5-1 plan (1 days after: executive or director change)
- Sep 30, 2026NewsCompany reported: Executive or director change
- Sep 29, 2026CongressRep. Gilbert Ray Cisneros, Jr. partial sell $1K–$15K
- Sep 22, 2026NewsCompany reported: Signed a material agreement
- Sep 16, 2026Insider saleDirector Matthew L. Posard sold $2 million under a 10b5-1 plan
- Sep 16, 2026Planned saleMATTHEW POSARD (director) filed notice to sell about $3.6 million around Sep 16, 2026
- Sep 11, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan
- Sep 10, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan
- Sep 9, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan
- Aug 19, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan (1 days after: executive or director change)
- Aug 18, 2026NewsCompany reported: Executive or director change
- Aug 18, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan (0 days after: executive or director change)
- Aug 17, 2026Insider saleCEO Helen Torley sold $2.1 million under a 10b5-1 plan
- Aug 17, 2026Planned saleHelen Torley (president, ceo, director) filed notice to sell about $23.7 million around Aug 17, 2026
- Aug 11, 2026Planned saleCORTNEY A CAUDILL (officer) filed notice to sell about $4.3 million around Aug 11, 2026
- Aug 10, 2026Insider saleDirector Bernadette Connaughton sold $167,153 under a 10b5-1 plan (4 days after: quarterly or annual results)
- Aug 10, 2026Planned saleBERNADETTE CONNAUGHTON (director) filed notice to sell about $167,673 around Aug 10, 2026
- Aug 6, 2026NewsCompany reported: Quarterly or annual results
- Jul 8, 2026Insider saleCEO Helen Torley sold $153,391 under a 10b5-1 plan
- Jul 1, 2026Insider saleDirector Bernadette Connaughton sold $124,651 under a 10b5-1 plan
- Jun 30, 2026FundBridgewater Associates cut 9% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies cut 34% in Q2 2026 (13F filed Aug 13, 2026)
- Jun 29, 2026Insider saleDirector Mahesh Krishnan sold $547,800 under a 10b5-1 plan
- Mar 9, 2026CongressRep. Gilbert Ray Cisneros, Jr. buy $1K–$15K
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 8, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 8 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.23M |
| Oct 8 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.19M |
| Oct 8 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.19M |
| Oct 2 | Matthew L. PosardDirector | ▼ SELL10b5-1 | $568K |
| Sep 17 | Matthew L. PosardDirector | ▼ SELL10b5-1 | $2.05M |
| Sep 11 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.15M |
| Sep 11 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.14M |
| Sep 11 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.14M |
| Aug 19 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.14M |
| Aug 19 | Helen TorleyCEO | ▼ SELL10b5-1 | $2.08M |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Helen Torley | CEO | 0 | $0 | 10 | $19.5M |
| Matthew L. Posard | Director | 0 | $0 | 2 | $2.61M |
| Bernadette Connaughton | Director | 0 | $0 | 2 | $292K |
| Mahesh Krishnan | Director | 0 | $0 | 1 | $548K |
Trades by members of Congress
Reported under the STOCK Act. Amounts are ranges from the form. All Congress trades →
| Filed | Member | Type | Amount |
|---|---|---|---|
| Oct 12 | ▼ PARTIAL SELL | $1K–$15K | |
| Apr 7 | ▲ BUY | $1K–$15K |
Buybacks and executive pay
HALOZYME THERAPEUTICS, INC. spent $342.4 million buying back its own shares in 2025.
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A All 15 insider trades reported on time. How it is graded
Tracked funds that report HALO
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 479,611 | $37.5M | ▼ −34.5% |
| Bridgewater Associates | 463,146 | $36.3M | ▼ −9.4% |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →