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 |
|---|---|---|---|---|---|---|
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $14.06 | Nov 16, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $36.52 | Oct 17, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 10K | $19.98 | Oct 17, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 10K | $19.98 | Sep 19, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $39.10 | Sep 19, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $42.69 | Aug 31, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $13.87 | Aug 31, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $42.41 | Aug 23, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 10K | $19.68 | Aug 23, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $43.49 | Aug 17, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $13.87 | Aug 17, 2023 |
| Daly James M | Director | SELL | $500K+ | 20K | $43.73 | Aug 15, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $43.09 | Jul 27, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $13.87 | Jul 27, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 20K | $15.30 | Jul 19, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $40.43 | Jul 19, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $36.00 | Jun 22, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 10K | $18.41 | Jun 22, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $36.00 | Apr 19, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | $100K–$500K | 10K | $18.41 | Apr 19, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $14.66 | Mar 9, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $43.82 | Mar 9, 2023 |
| Henderson Jeffrey William | Director | SELL | $500K+ | 20K | $48.11 | Mar 1, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $49.55 | Feb 28, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | N/A | 6K | — | Feb 22, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 3K | $49.26 | Feb 22, 2023 |
| LaBrosse Nicole | SVP | SELL | $100K–$500K | 3K | $49.26 | Feb 22, 2023 |
| LaBrosse Nicole | SVP | EXERCISE | N/A | 5K | — | Feb 22, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $500K+ | 11K | $49.26 | Feb 21, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | N/A | 21K | — | Feb 21, 2023 |
| LaBarre Michael J. | SVP | SELL | $100K–$500K | 10K | $48.39 | Feb 17, 2023 |
| LaBarre Michael J. | SVP | EXERCISE | N/A | 3K | — | Feb 17, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $51.01 | Feb 9, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $14.66 | Feb 9, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $51.30 | Jan 19, 2023 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $14.66 | Jan 19, 2023 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 10K | $50.46 | Jan 19, 2023 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $58.11 | Dec 16, 2022 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $14.66 | Dec 16, 2022 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 10K | $58.67 | Dec 13, 2022 |
| Posard Matthew L. | Director | SELL | $1M+ | 30K | $56.88 | Dec 7, 2022 |
| Torley Helen | PRESIDENT AND CEO | SELL | $1M+ | 30K | $53.39 | Nov 17, 2022 |
| Torley Helen | PRESIDENT AND CEO | EXERCISE | $100K–$500K | 30K | $14.66 | Nov 17, 2022 |
| LaBrosse Nicole | SVP | SELL | $100K–$500K | 5K | $53.81 | Nov 17, 2022 |
| LaBarre Michael J. | SVP | SELL | $500K+ | 10K | $54.13 | Nov 17, 2022 |
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