HALOZYME THERAPEUTICS, INC.
Total Trades
95
Buys
0
Sells
57
Largest Trade
N/A
Insiders
8
Institutional Funds
534
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $500K+ | 50K | $12.07 | Mar 4, 2026 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 50K | $69.52 | Mar 4, 2026 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 50K | $77.07 | Feb 6, 2026 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $500K+ | 50K | $12.07 | Feb 6, 2026 |
| Connaughton Bernadette | Director | SELL | $100K–$500K | 2K | $70.25 | Jan 6, 2026 |
| Caudill Cortney | SVP | SELL | $100K–$500K | 4K | $65.19 | Dec 19, 2025 |
| Caudill Cortney | SVP | EXERCISE | N/A | 9K | — | Dec 19, 2025 |
| Connaughton Bernadette | Director | SELL | $50K–$100K | 829 | $71.60 | Dec 2, 2025 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 17K | $68.92 | Dec 2, 2025 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 17K | $8.11 | Dec 2, 2025 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 60K | $69.47 | Nov 12, 2025 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 60K | $8.11 | Nov 12, 2025 |
| Connaughton Bernadette | Director | SELL | $100K–$500K | 2K | $68.48 | Nov 12, 2025 |
| Connaughton Bernadette | Director | SELL | $100K–$500K | 2K | $75.24 | Oct 1, 2025 |
| LaBrosse Nicole | SVP | SELL | $100K–$500K | 2K | $77.95 | Sep 23, 2025 |
| LaBrosse Nicole | SVP | SELL | $1M+ | 20K | $75.71 | Sep 11, 2025 |
| LaBrosse Nicole | SVP | EXERCISE | $100K–$500K | 12K | $12.11 | Sep 11, 2025 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 60K | $74.08 | Sep 4, 2025 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 60K | $8.11 | Sep 4, 2025 |
| Connaughton Bernadette | Director | SELL | $100K–$500K | 4K | $73.68 | Sep 3, 2025 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 60K | $56.46 | Jul 10, 2025 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 60K | $8.11 | Jul 10, 2025 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 60K | $53.09 | Jun 24, 2025 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 60K | $8.11 | Jun 24, 2025 |
| Henderson Jeffrey William | Director | SELL | $100K–$500K | 4K | $60.37 | Apr 28, 2025 |
| Henderson Jeffrey William | Director | SELL | $15K–$50K | 503 | $64.05 | Apr 1, 2025 |
| LaBarre Michael J. | SVP | SELL | $1M+ | 22K | $58.10 | Feb 27, 2025 |
| Henderson Jeffrey William | Director | SELL | $500K+ | 10K | $50.01 | Jan 7, 2025 |
| LaBarre Michael J. | SVP | SELL | $1M+ | 20K | $53.50 | Oct 16, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $19.06 | Oct 16, 2024 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 20K | $13.87 | Oct 9, 2024 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 20K | $53.29 | Oct 9, 2024 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $56.88 | Sep 26, 2024 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $13.87 | Sep 26, 2024 |
| LaBarre Michael J. | SVP | SELL | $1M+ | 20K | $61.40 | Aug 21, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $16.65 | Aug 21, 2024 |
| LaBrosse Nicole | SVP | SELL | $1M+ | 30K | $51.93 | Jun 28, 2024 |
| LaBrosse Nicole | SVP | EXERCISE | $500K+ | 30K | $22.50 | Jun 28, 2024 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $49.43 | Jun 20, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $50K–$100K | 10K | $8.11 | Jun 20, 2024 |
| Posard Matthew L. | Director | SELL | $1M+ | 20K | $50.31 | Jun 13, 2024 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 20K | $45.27 | May 22, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $8.11 | May 22, 2024 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 20K | $38.42 | Apr 17, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $8.11 | Apr 17, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $50K–$100K | 7K | $8.11 | Feb 28, 2024 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 20K | $39.75 | Feb 28, 2024 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 20K | $36.00 | Jan 18, 2024 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $12.07 | Jan 18, 2024 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 20K | $39.43 | Nov 16, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 534 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 5.1M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 3.2M | $1M+ | SH |
| SNYDER CAPITAL MANAGEMENT L P | 2.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.9M | $1M+ | SH |
| NORGES BANK | 1.9M | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.8M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 1.8M | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.5M | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.4M | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.4M | $1M+ | SH |
| ROYAL LONDON ASSET MANAGEMENT LTD | 1.4M | $1M+ | SH |
| CONGRESS ASSET MANAGEMENT CO | 1.3M | $1M+ | SH |
| LSV ASSET MANAGEMENT | 1.3M | $1M+ | SH |
| MIZUHO MARKETS AMERICAS LLC | 1.3M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | $1M+ | SH |
| CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | 1.2M | $1M+ | SH |
| Stephens Investment Management Group LLC | 1.2M | $1M+ | SH |
| GW&K Investment Management, LLC | 1.2M | $1M+ | SH |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 1.1M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Jul 17, 2025
10.2%
12.6M shares
SC 13G · May 13, 2025
4.9%
6.1M shares
SC 13G/A · Apr 28, 2025
13.1%
16.1M shares
Artisan Partners Limited Partnership
SC 13G/A · Nov 12, 2024
2.5%
3.1M shares
STATE STREET CORPORATION 04-2456637
SC 13G · Oct 17, 2024
5.2%
6.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
10.0%
13.3M shares
Artisan Partners Limited Partnership
SC 13G/A · Feb 12, 2024
5.1%
6.7M shares
SC 13G/A · Feb 1, 2024
2.1%
2.8M shares
SC 13G/A · Jan 23, 2024
14.1%
18.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jun 9, 2023
10.3%
13.5M shares
SC 13G/A · Feb 10, 2023
14.2%
19.2M shares
Artisan Partners Limited Partnership
SC 13G/A · Feb 10, 2023
5.3%
7.1M shares
SC 13G · Feb 9, 2023
5.2%
7.0M shares
SC 13G/A · Jan 26, 2023
13.6%
18.2M shares
SC 13G · Jan 20, 2023
13.6%
18.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Dec 12, 2022
10.0%
13.5M shares
SC 13G/A · Jan 28, 2022
13.8%
19.4M shares