🕵️ 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 $41.0M with no open-market buying against it. Torley Helen sold $35.4M through a 10b5-1 trading plan in 80 lots (Aug–Jul). Blackrock, Inc. trimmed 13.1% → 10.2%. 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, $41.0M (101 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Torley Helen | 0 | – | 80 | $35.4M | Jul 8, 2026 |
| Cortney A Caudill | 0 | – | 4 | $2.2M | Mar 10, 2026 |
| Nicole Labrosse | 0 | – | 4 | $1.7M | Sep 22, 2025 |
| Connaughton Bernadette | 0 | – | 12 | $1.1M | Jul 1, 2026 |
| Krishnan Mahesh | 0 | – | 1 | $548K | Jun 29, 2026 |
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 | |
|---|---|---|---|
| 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 ↗ |
| Nicole Labrosse | $1.7M | Sep 10, 2025 | filing ↗ |
| Bernadette Connaughton | $646K | Sep 2, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| 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 ↗ |
| Other events (8.01) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |