HALONasdaq · Biological Products, (No Diagnostic Substances)

HALOZYME THERAPEUTICS, INC.

Alert me on HALO

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Oct 12 Sale Rep. Gilbert Cisneros House

1 week

+13.5%S&P −1.2%

1 month

Result in13 trading days

3 months

Result in55 trading days

6 months

Result in118 trading days

Oct 9 Sale Torley Helen Insider

1 week

+10.3%S&P −2.0%

1 month

Result in11 trading days

3 months

Result in53 trading days

6 months

Result in116 trading days

Oct 3 Sale Posard Matthew L. Insider

1 week

+2.6%S&P +0.4%

1 month

Result in7 trading days

3 months

Result in49 trading days

6 months

Result in112 trading days

Sep 18 Sale Posard Matthew L. Insider

1 week

+1.3%S&P +1.3%

1 month

+8.9%S&P +0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Sep 12 Sale Torley Helen Insider

1 week

+3.3%S&P +1.9%

1 month

+1.6%S&P +2.5%

3 months

Result in34 trading days

6 months

Result in97 trading days

Show all 33

Aug 20 Sale Torley Helen Insider

1 week

+0.8%S&P +1.1%

1 month

+5.0%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

Aug 12 Sale Connaughton Bernadette Insider

1 week

+5.7%S&P −0.4%

1 month

+5.3%S&P −1.1%

3 months

Result in12 trading days

6 months

Result in75 trading days

Jul 10 Sale Torley Helen Insider

1 week

+2.1%S&P −1.5%

1 month

+34.7%S&P +2.4%

3 months

+44.1%S&P +2.8%

6 months

Result in52 trading days

Jul 3 Sale Connaughton Bernadette Insider

1 week

−5.8%S&P −0.3%

1 month

+3.0%S&P +2.7%

3 months

+36.0%S&P +2.7%

6 months

Result in48 trading days

Jul 1 Sale Krishnan Mahesh Insider

1 week

+2.1%S&P +0.8%

1 month

+7.2%S&P +0.2%

3 months

+43.4%S&P +2.5%

6 months

Result in46 trading days

Jun 4 Sale Torley Helen Insider

1 week

−1.2%S&P −2.6%

1 month

+13.9%S&P −1.0%

3 months

+54.7%S&P +2.4%

6 months

Result in28 trading days

Jun 3 Sale Connaughton Bernadette Insider

1 week

+1.0%S&P −3.8%

1 month

+15.7%S&P −0.1%

3 months

+57.1%S&P +1.7%

6 months

Result in27 trading days

May 14 Sale Torley Helen Insider

1 week

−1.0%S&P −0.7%

1 month

+3.0%S&P +0.9%

3 months

+42.6%S&P +4.0%

6 months

Result in14 trading days

May 6 Sale Connaughton Bernadette Insider

1 week

+5.5%S&P +1.2%

1 month

+7.8%S&P +0.5%

3 months

+29.3%S&P +5.0%

6 months

Result in8 trading days

Apr 8 Sale Torley Helen Insider

1 week

+4.0%S&P +3.5%

1 month

−0.4%S&P +8.2%

3 months

+20.2%S&P +11.5%

6 months

+69.3%S&P +15.6%

Apr 7 Buy Rep. Gilbert Cisneros House

1 week

+4.0%S&P +3.5%

1 month

−0.4%S&P +8.2%

3 months

+20.2%S&P +11.5%

6 months

+69.3%S&P +15.6%

Apr 3 Sale Torley Helen Insider

1 week

+6.2%S&P +4.1%

1 month

+4.4%S&P +9.8%

3 months

+29.3%S&P +13.8%

6 months

+71.7%S&P +18.2%

Mar 11 Sale Caudill Cortney Insider

1 week

−4.3%S&P −2.2%

1 month

+2.0%S&P +0.7%

3 months

+6.0%S&P +7.6%

6 months

+61.0%S&P +12.6%

Mar 5 Sale Torley Helen Insider

1 week

−5.6%S&P −2.2%

1 month

−6.4%S&P −3.0%

3 months

+6.3%S&P +11.4%

6 months

+64.4%S&P +14.1%

Feb 6 Sale Torley Helen Insider

1 week

−2.2%S&P −1.3%

1 month

−16.5%S&P −1.9%

3 months

−21.1%S&P +7.1%

6 months

+26.3%S&P +12.5%

Jan 7 Sale Connaughton Bernadette Insider

1 week

−2.9%S&P +0.1%

1 month

+8.1%S&P +0.2%

3 months

−10.7%S&P −1.1%

6 months

+1.5%S&P +10.1%

Dec 20, 2025 Sale Caudill Cortney Insider

1 week

−0.7%S&P +0.3%

1 month

+1.6%S&P +0.6%

3 months

−7.2%S&P −3.8%

6 months

+6.6%S&P +7.8%

Dec 2, 2025 Sale Connaughton Bernadette Insider

1 week

−7.0%S&P +0.2%

1 month

+5.7%S&P +0.5%

3 months

+1.2%S&P +0.3%

6 months

+7.6%S&P +11.7%

Dec 2, 2025 Sale Torley Helen Insider

1 week

−7.0%S&P +0.2%

1 month

+5.7%S&P +0.5%

3 months

+1.2%S&P +0.3%

6 months

+7.6%S&P +11.7%

Nov 13, 2025 Sale Connaughton Bernadette Insider

1 week

−3.1%S&P −2.9%

1 month

−10.9%S&P +1.3%

3 months

+13.0%S&P +1.9%

6 months

−5.3%S&P +10.5%

Nov 13, 2025 Sale Torley Helen Insider

1 week

−3.1%S&P −2.9%

1 month

−10.9%S&P +1.3%

3 months

+13.0%S&P +1.9%

6 months

−5.3%S&P +10.5%

Oct 4, 2025 Sale Torley Helen Insider

1 week

−2.4%S&P −1.3%

1 month

+1.6%S&P +0.5%

3 months

+9.2%S&P +3.3%

6 months

−2.3%S&P +1.2%

Oct 2, 2025 Sale Connaughton Bernadette Insider

1 week

−9.2%S&P +0.3%

1 month

−9.1%S&P +1.9%

3 months

−1.9%S&P +2.4%

6 months

−12.0%S&P −1.0%

Sep 24, 2025 Sale LaBrosse Nicole Insider

1 week

−0.9%S&P +1.1%

1 month

−11.6%S&P +1.6%

3 months

−9.6%S&P +4.4%

6 months

−16.3%S&P −1.9%

Sep 12, 2025 Sale LaBrosse Nicole Insider

1 week

+1.2%S&P +1.2%

1 month

−15.0%S&P +1.1%

3 months

−19.5%S&P +5.1%

6 months

−16.4%S&P +2.3%

Sep 5, 2025 Sale Torley Helen Insider

1 week

+2.6%S&P +1.6%

1 month

−10.6%S&P +4.1%

3 months

−16.0%S&P +6.0%

6 months

−9.1%S&P +5.4%

Sep 3, 2025 Sale Connaughton Bernadette Insider

1 week

+1.3%S&P +1.3%

1 month

−4.2%S&P +4.2%

3 months

−11.1%S&P +6.2%

6 months

−10.0%S&P +6.4%

Apr 7, 2025 Sale Rep. Gilbert Cisneros House

1 week

+6.5%S&P +8.3%

1 month

+17.7%S&P +13.8%

3 months

+0.2%S&P +26.4%

6 months

+13.3%S&P +36.4%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for HALO

77 held · newest 577 held · newest 2

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See all 77 filings for HALO

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$60KQ4 2025

$70KQ1 2026

$80KQ2 2026

$80KQ3 2026

Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 20, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.