🕵️ Halozyme Therapeutics, Inc. ($HALO)
SEC insider & ownership activity, last 12 months · CIK 1159036 · every row links its SEC filing
Over the last 12 months insiders sold $43.8M with no open-market buying against it. Torley Helen sold $39.8M through a 10b5-1 trading plan in 84 lots (Oct–Sep). 2 planned sales are pending, the largest $4.3M (Cortney A. Caudill). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 5 sellers, $43.8M (101 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Torley Helen | 0 | – | 84 | $39.8M | Sep 11, 2026 |
| Cortney A. Caudill | 0 | – | 4 | $2.2M | Mar 10, 2026 |
| Connaughton Bernadette | 0 | – | 10 | $990K | Aug 10, 2026 |
| Krishnan Mahesh | 0 | – | 1 | $548K | Jun 29, 2026 |
| Nicole Labrosse | 0 | – | 2 | $174K | Sep 22, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10.2% | 13G | Jul 17, 2025 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Matthew Posard | $3.6M | Sep 16, 2026 | filing ↗ |
| Helen Torley | $23.7M | Aug 17, 2026 | filing ↗ |
| Cortney A. Caudill | $4.3M | Aug 11, 2026 | filing ↗ |
| Bernadette Connaughton | $168K | Aug 10, 2026 | filing ↗ |
| Mahesh Krishnan | $548K | Jun 29, 2026 | filing ↗ |
| Nicole Labrosse | $987K | May 15, 2026 | filing ↗ |
| Helen Torley | $6.5M | May 11, 2026 | filing ↗ |
| Bernadette Connaughton | $310K | May 1, 2026 | filing ↗ |
| Cortney A. Caudill | $599K | Mar 10, 2026 | filing ↗ |
| Cortney A. Caudill | $1.4M | Mar 9, 2026 | filing ↗ |
| Helen Torley | $11.2M | Feb 3, 2026 | filing ↗ |
| Bernadette Connaughton | $141K | Jan 5, 2026 | filing ↗ |
| Helen Torley | $10.0M | Oct 1, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Sep 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 16, 2026 | filing ↗ |
| Officer/director changes (5.02) | Aug 14, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 30, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 5, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 12, 2026 | filing ↗ |
| Earnings (2.02) | Feb 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 17, 2026 | filing ↗ |
| Earnings (2.02) | Jan 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 18, 2025 | filing ↗ |
| Material agreement (1.01) | Nov 6, 2025 | filing ↗ |
| New financial obligation (2.03) | Nov 6, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Other events (8.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Material agreement (1.01) | Nov 5, 2025 | filing ↗ |
| New financial obligation (2.03) | Nov 5, 2025 | filing ↗ |