HALOZYME THERAPEUTICS, INC.

HALO

Form 4 • Statement of Changes in Beneficial Ownership

SEC Accession Number: 0001159036-26-000032
Filing date: Mar 4, 2026
Earliest execution date: Mar 2, 2026
Reporting Owners: Torley Helen (CEO)

Summary

Type

Sell

Net shares

-50,000

% of shares

-0.92%

Amount (USD)

$3,476,156

Insider confidence score

46.3 out of 100

Positive

  • Under Rule 10b5-1 trading plan
  • Routine scheduled sell (<1% of shares)

Negative

  • Very large sell amount ($1M+)

Stock transactions

Transaction 1

Security

Common Stock

Action

Exercise

Date

2026-03-02

Code

M

Net shares

+20,000.0

Price per Share

$12.07

Amount (USD)

$241,400.00

Acquired/Disposed

Acquired

Shares Owned Before

767,780.0

Shares Owned After

787,780.0

Transaction 2

Security

Common Stock

Action

Sell

Date

2026-03-02

Code

S

Net shares

-4,100.0

Price per Share

$69.20

Amount (USD)

$283,707.70

Acquired/Disposed

Disposed

Shares Owned Before

787,780.0

Shares Owned After

783,680.0

Transaction 3

Security

Common Stock

Action

Sell

Date

2026-03-02

Code

S

Net shares

-15,322.0

Price per Share

$69.80

Amount (USD)

$1,069,460.28

Acquired/Disposed

Disposed

Shares Owned Before

783,680.0

Shares Owned After

768,358.0

Transaction 4

Security

Common Stock

Action

Sell

Date

2026-03-02

Code

S

Net shares

-578.0

Price per Share

$70.46

Amount (USD)

$40,726.46

Acquired/Disposed

Disposed

Shares Owned Before

768,358.0

Shares Owned After

767,780.0

Transaction 5

Security

Common Stock

Action

Exercise

Date

2026-03-03

Code

M

Net shares

+20,000.0

Price per Share

$12.07

Amount (USD)

$241,400.00

Acquired/Disposed

Acquired

Shares Owned Before

767,780.0

Shares Owned After

787,780.0

Transaction 6

Security

Common Stock

Action

Sell

Date

2026-03-03

Code

S

Net shares

-13,481.0

Price per Share

$68.85

Amount (USD)

$928,166.85

Acquired/Disposed

Disposed

Shares Owned Before

787,780.0

Shares Owned After

774,299.0

Transaction 7

Security

Common Stock

Action

Sell

Date

2026-03-03

Code

S

Net shares

-6,519.0

Price per Share

$69.33

Amount (USD)

$451,981.83

Acquired/Disposed

Disposed

Shares Owned Before

774,299.0

Shares Owned After

767,780.0

Transaction 8

Security

Common Stock

Action

Exercise

Date

2026-03-04

Code

M

Net shares

+10,000.0

Price per Share

$12.07

Amount (USD)

$120,700.00

Acquired/Disposed

Acquired

Shares Owned Before

767,780.0

Shares Owned After

777,780.0

Transaction 9

Security

Common Stock

Action

Sell

Date

2026-03-04

Code

S

Net shares

-7,329.0

Price per Share

$69.94

Amount (USD)

$512,619.58

Acquired/Disposed

Disposed

Shares Owned Before

777,780.0

Shares Owned After

770,451.0

Transaction 10

Security

Common Stock

Action

Sell

Date

2026-03-04

Code

S

Net shares

-2,671.0

Price per Share

$70.95

Amount (USD)

$189,494.09

Acquired/Disposed

Disposed

Shares Owned Before

770,451.0

Shares Owned After

767,780.0

Derivative Transactions

Transaction 1

Security

Option to Purchase Common Stock

Action

Exercise

Date

2026-03-02

Code

M

Net shares

-20,000.0

Price per Share

$12.07

Amount (USD)

$241,400.00

Acquired/Disposed

Disposed

Shares Owned Before

201,923.0

Shares Owned After

181,923.0

Transaction 2

Security

Option to Purchase Common Stock

Action

Exercise

Date

2026-03-03

Code

M

Net shares

-20,000.0

Price per Share

$12.07

Amount (USD)

$241,400.00

Acquired/Disposed

Disposed

Shares Owned Before

181,923.0

Shares Owned After

161,923.0

Transaction 3

Security

Option to Purchase Common Stock

Action

Exercise

Date

2026-03-04

Code

M

Net shares

-10,000.0

Price per Share

$12.07

Amount (USD)

$120,700.00

Acquired/Disposed

Disposed

Shares Owned Before

161,923.0

Shares Owned After

151,923.0

Filing's footnotes

1. The options exercised and sales reported on this Form 4 were made pursuant to a written trading plan adopted by the Reporting Person on March 21, 2025 in accordance with Rule 10b5-1. The sales of common shares reported on this Form 4 represent shares that were acquired following exercise of stock options with a ten-year term expiring in February 2027.

2. Represents a weighted average sales price per share. The shares were sold at prices ranging from $68.375 to $69.370. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

3. Represents a weighted average sales price per share. The shares were sold at prices ranging from $69.380 to $70.340. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

4. Represents a weighted average sales price per share. The shares were sold at prices ranging from $70.380 to $70.620. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

5. Represents a weighted average sales price per share. The shares were sold at prices ranging from $68.220 to $69.210. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

6. Represents a weighted average sales price per share. The shares were sold at prices ranging from $69.220 to $69.520. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

7. Represents a weighted average sales price per share. The shares were sold at prices ranging from $69.400 to $70.390. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

8. Represents a weighted average sales price per share. The shares were sold at prices ranging from $70.400 to $71.360. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

9. Grant to Reporting Person of options, exercisable over a 4-year period measured from the date of grant, 25% after 12 months, then 1/48th of the Option Shares per month thereafter. The date of grant was February 22, 2017.

ℹ️ Filed under Rule 10b5-1 trading plan

This page is for informational purposes only. While we strive for accuracy, the summary may contain inaccuracies or omissions. Please refer to the official SEC filing for authoritative information. Open the SEC filing.