Company profile
Halozyme Therapeutics, Inc. Insider Trading
HALOEvery SEC Form 4 insider trading filing for Halozyme Therapeutics, Inc. (HALO) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Biological Products, (No Diagnostic Substances)
- CIK
- 0001159036
- Filings
- 153
- Insiders
- 18
- Last filing
- 2026-09-16
Activity summary
Recent insider activity is bullish. Over the last 30 days, 2 insiders purchased shares. Buying was led by Dannielle Appelhans.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Halozyme Therapeutics, Inc. insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $17.8M.
90 day insight
Over the last 90 days, Halozyme Therapeutics, Inc. insiders bought $0 (8 transactions) and sold $423K (1 transaction).
- Most active insider: Helen Torley with 34 transactions totaling $17.3M.
- Largest single sale: $1.7M by Helen Torley on Sep 11, 2026.
- 96% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 16, 2026 | Matthew L. Posard | HALO | Sale10b5 | 4,000 | $108.99 | $436K |
| Sep 16, 2026 | Matthew L. Posard | HALO | Sale10b5 | 8,896 | $108.04 | $961K |
| Sep 16, 2026 | Matthew L. Posard | HALO | Sale10b5 | 3,100 | $106.13 | $329K |
| Sep 16, 2026 | Matthew L. Posard | HALO | Sale10b5 | 3,000 | $106.83 | $320K |
| Sep 11, 2026 | Helen Torley | HALO | Sale10b5 | 4,508 | $107.55 | $485K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Halozyme Therapeutics, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →