Halozyme Therapeutics, Inc.

HALONASDAQHealthcare● Active

$71.53

$-0.07(-0.10%)

Market Cap$8.5B

P/E Ratio—

52W High$82.22

52W Low$51.06

Avg Volume1.6M

Open$72.25

Beta0.87

Overview

Halozyme Therapeutics, Inc. (HALO) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · HALO · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Halozyme Therapeutics, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

HALO insider buying and selling by quarter

HALO insider selling · HALO insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

802K401K0

2024 Q4

2025 Q1

2025 Q2

2025 Q3

2025 Q4

2026 Q1

2026 Q2

2027 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · HALO ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

HALO executive sell shares · HALO board member insider trading · HALO insider trading SEC filing

Showing 71 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jun 2, 2026	Torley Helen PRESIDENT AND CEO · Director	Option	20,000	$12.07	$241K	787,780	Form 4
Jun 1, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	1,610	$66.39	$107K	786,170	Form 4
Jun 3, 2026	Torley Helen PRESIDENT AND CEO · Director	Option	10,000	$12.07	$121K	777,780	Form 4
Jun 3, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	400	$66.37	$27K	777,380	Form 4
Jun 3, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	1,500	$67.67	$102K	775,880	Form 4
Jun 3, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	2,000	$68.74	$137K	773,880	Form 4
Jun 1, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	12,989	$67.41	$876K	773,181	Form 4
Jun 2, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	16,600	$66.31	$1.10M⚡	771,180	Form 4
Jun 2, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	3,400	$66.75	$227K	767,780	Form 4
Jun 1, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	5,401	$68.35	$369K	767,780	Form 4
Jun 3, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	6,100	$69.69	$425K	767,780	Form 4
Jun 1, 2026	Connaughton Bernadette Director	Sale	1,625	$66.21	$108K	43,669	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Option	20,000	$12.07	$241K	787,780	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	100	$67.85	$7K	787,680	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	1,398	$70.29	$98K	786,282	Form 4
May 11, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	9,725	$64.63	$629K	778,055	Form 4
May 13, 2026	Torley Helen PRESIDENT AND CEO · Director	Option	10,000	$12.07	$121K	777,780	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	9,802	$71.37	$700K	776,480	Form 4
May 13, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	2,100	$68.10	$143K	775,680	Form 4
May 11, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	3,575	$65.46	$234K	774,480	Form 4
May 13, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	3,350	$68.88	$231K	772,330	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	5,900	$72.15	$426K	770,580	Form 4
May 13, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	3,950	$69.79	$276K	768,380	Form 4
May 11, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	6,700	$66.33	$444K	767,780	Form 4
May 12, 2026	Torley Helen PRESIDENT AND CEO · Director	Sale	2,800	$73.12	$205K	767,780	Form 4

Torley Helen

PRESIDENT AND CEO · Director

Option

Date

Jun 2

20,000

Price

$12.07

Value

$241K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 1

1,610

Price

$66.39

Value

$107K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Option

Date

Jun 3

10,000

Price

$12.07

Value

$121K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 3

400

Price

$66.37

Value

$27K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 3

1,500

Price

$67.67

Value

$102K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 3

2,000

Price

$68.74

Value

$137K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 1

12,989

Price

$67.41

Value

$876K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 2

16,600

Price

$66.31

Value

$1.10M ⚡

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 2

3,400

Price

$66.75

Value

$227K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 1

5,401

Price

$68.35

Value

$369K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

Jun 3

6,100

Price

$69.69

Value

$425K

View Form 4 on SEC.gov

Connaughton Bernadette

Director

Sale

Date

Jun 1

1,625

Price

$66.21

Value

$108K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Option

Date

May 12

20,000

Price

$12.07

Value

$241K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 12

100

Price

$67.85

Value

$7K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 12

1,398

Price

$70.29

Value

$98K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 11

9,725

Price

$64.63

Value

$629K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Option

Date

May 13

10,000

Price

$12.07

Value

$121K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 12

9,802

Price

$71.37

Value

$700K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 13

2,100

Price

$68.10

Value

$143K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 11

3,575

Price

$65.46

Value

$234K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 13

3,350

Price

$68.88

Value

$231K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 12

5,900

Price

$72.15

Value

$426K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 13

3,950

Price

$69.79

Value

$276K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 11

6,700

Price

$66.33

Value

$444K

View Form 4 on SEC.gov

Torley Helen

PRESIDENT AND CEO · Director

Sale

Date

May 12

2,800

Price

$73.12

Value

$205K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 3

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About HALO insider trading

HALO insider trades

Halozyme Therapeutics, Inc. (HALO) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Torley Helen (PRESIDENT AND CEO · Director), Caudill Cortney (SVP, CHIEF OPERATING OFFICER), Snyder Mark Howard (SVP, CHIEF LEGAL OFFICER). Over the past 12 months, 5 insiders have filed transactions with the SEC. HALO insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Halozyme Therapeutics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

HALO insider trading · 5 questions

The insiders of Halozyme Therapeutics, Inc. (HALO) include executives and directors such as Torley Helen (PRESIDENT AND CEO · Director), Caudill Cortney (SVP, CHIEF OPERATING OFFICER), Snyder Mark Howard (SVP, CHIEF LEGAL OFFICER), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

HALO board member insider tradingwho are HALO insidersHALO insider rosterHalozyme Therapeutics, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026