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Halozyme CEO sells 60,000 shares under 10b5-1 plan

HALOZYME THERAPEUTICS, INC.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

HALOZYME THERAPEUTICS, INC. (HALO) reported that President and CEO Helen Torley exercised stock options for 60,000 shares of common stock at an exercise price of $18.41 per share over September 9–11, 2026, and sold 60,000 shares at weighted average prices around $107 per share under a pre-arranged Rule 10b5-1 trading plan.

Positive

  • None.

Negative

  • None.
Insider Torley Helen
Role PRESIDENT AND CEO
Sold 60,000 shs ($6.44M)
Approx. gross sale proceeds $6.44M
Approx. exercise cost $1.10M
Approx. pre-tax spread $5.33M
Type Security Shares Price Value
Exercise Option to Purchase Common Stock F1, F8 20,000 $18.41 $368K
Exercise Common Stock F1 20,000 $18.41 $368K
Sale Common Stock F1, F6 15,492 $107.154 $1.66M
Sale Common Stock F1, F7 4,508 $107.548 $485K
Exercise Option to Purchase Common Stock F1, F8 20,000 $18.41 $368K
Exercise Common Stock F1 20,000 $18.41 $368K
Sale Common Stock F1, F4 14,588 $107.012 $1.56M
Sale Common Stock F1, F5 5,412 $107.581 $582K
Exercise Option to Purchase Common Stock F1, F8 20,000 $18.41 $368K
Exercise Common Stock F1 20,000 $18.41 $368K
Sale Common Stock F1, F2 13,304 $107.222 $1.43M
Sale Common Stock F1, F3 6,596 $107.821 $711K
Sale Common Stock F1 100 $108.67 $11K
Holdings After Transaction: Option to Purchase Common Stock — 81,552 contracts (Direct); Common Stock — 767,780 shares (Direct)
Footnotes (8)
  1. F1. The options exercised and sales reported on this Form 4 were made pursuant to a written trading plan adopted by the Reporting Person on December 3, 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 2028.
  2. F2. Represents a weighted average sales price per share. The shares were sold at prices ranging from $106.640 to $107.632. 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. F3. Represents a weighted average sales price per share. The shares were sold at prices ranging from $107.640 to $108.290. 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. F4. Represents a weighted average sales price per share. The shares were sold at prices ranging from $106.360 to $107.350 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. F5. Represents a weighted average sales price per share. The shares were sold at prices ranging from $107.360 to $107.820 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. F6. Represents a weighted average sales price per share. The shares were sold at prices ranging from $106.400 to $107.390. 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.
  7. F7. Represents a weighted average sales price per share. The shares were sold at prices ranging from $107.400 to $107.960. 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. F8. 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 14, 2018.
Options exercised 60,000 shares Total option shares exercised by the CEO over September 9–11, 2026
Shares sold 60,000 shares Total Halozyme common shares sold over September 9–11, 2026
Option exercise price $18.41 per share Exercise price for options converted into 60,000 common shares
Sale price range $106.36–$108.29 per share Price ranges for weighted average sales prices noted in multiple tranches
Representative sale prices $107.01–$107.82 per share Examples of weighted average sale prices reported for individual sale rows
Rule 10b5-1 plan adoption date December 3, 2025 Date the CEO’s written trading plan governing these trades was adopted
Option grant date February 14, 2018 Grant date for the 10-year stock options that were exercised
Option expiration February 2028 Stated expiration timing for the exercised 10-year term options
Rule 10b5-1 regulatory
"made pursuant to a written trading plan adopted ... in accordance with Rule 10b5-1"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
trading plan financial
"The options exercised and sales ... were made pursuant to a written trading plan"
A trading plan is a written set of rules an investor follows about what to buy or sell, when to enter and exit positions, and how much risk to accept—like a travel itinerary that maps the route, stops, and budget before a trip. It matters because it helps remove emotional decisions during market swings, enforces discipline, and makes performance easier to review and improve, reducing the chance of costly impulsive moves.
weighted average sales price per share financial
"Represents a weighted average sales price per share. The shares were sold at prices"
stock options financial
"shares that were acquired following exercise of stock options with a ten-year term"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
expiration date financial
"stock options with a ten-year term expiring in February 2028"
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did HALO CEO Helen Torley report on this Form 4 for HALO?

Helen Torley reported exercising 60,000 stock options at $18.41 per share and selling 60,000 common shares over September 9–11, 2026, at weighted average prices around $107 per share, all under a Rule 10b5-1 trading plan.

Over what dates did the HALO CEO’s option exercises and share sales occur?

The transactions occurred on September 9, 10, and 11, 2026. On each of these dates, options to purchase 20,000 shares at $18.41 were exercised and corresponding common shares were sold in multiple trades.

What prices were involved in the HALO CEO’s option exercises and sales?

Options were exercised at an exercise price of $18.41 per share. The resulting common shares were sold at weighted average prices around $107 per share, with reported ranges from about $106.36 to $108.29 per share across the different sale tranches.

Were the HALO CEO’s Form 4 transactions made under a Rule 10b5-1 plan?

Yes. The filing states the option exercises and sales were made pursuant to a written Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025, indicating the trades were pre-arranged under that plan.

What options did the HALO CEO exercise in this Form 4?

The CEO exercised stock options covering a total of 60,000 shares of common stock at $18.41 per share. Footnotes state these options were granted on February 14, 2018, had a 10-year term, and were scheduled to expire in February 2028.

How many HALO shares did the CEO sell according to this Form 4?

The transaction summary reports total sales of 60,000 shares of Halozyme common stock. These sales occurred in multiple tranches over September 9–11, 2026 at weighted average prices around $107 per share.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Torley Helen

(Last)(First)(Middle)
C/O HALOZYME THERAPEUTICS, INC.
12390 EL CAMINO REAL

(Street)
SAN DIEGO CALIFORNIA 92130

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
HALOZYME THERAPEUTICS, INC. [ HALO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
PRESIDENT AND CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/09/2026M(1)20,000A$18.41787,780D
Common Stock09/09/2026S(1)13,304D$107.222(2)774,476D
Common Stock09/09/2026S(1)6,596D$107.821(3)767,880D
Common Stock09/09/2026S(1)100D$108.67767,780D
Common Stock09/10/2026M(1)20,000A$18.41787,780D
Common Stock09/10/2026S(1)14,588D$107.012(4)773,192D
Common Stock09/10/2026S(1)5,412D$107.581(5)767,780D
Common Stock09/11/2026M(1)20,000A$18.41787,780D
Common Stock09/11/2026S(1)15,492D$107.154(6)772,288D
Common Stock09/11/2026S(1)4,508D$107.548(7)767,780D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Option to Purchase Common Stock$18.4109/09/2026M(1)20,000 (8)02/14/2028Common Stock20,000$18.41121,552D
Option to Purchase Common Stock$18.4109/10/2026M(1)20,000 (8)02/14/2028Common Stock20,000$18.41101,552D
Option to Purchase Common Stock$18.4109/11/2026M(1)20,000 (8)02/14/2028Common Stock20,000$18.4181,552D
Explanation of Responses:
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 December 3, 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 2028.
2. Represents a weighted average sales price per share. The shares were sold at prices ranging from $106.640 to $107.632. 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 $107.640 to $108.290. 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 $106.360 to $107.350 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 $107.360 to $107.820 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 $106.400 to $107.390. 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.
7. Represents a weighted average sales price per share. The shares were sold at prices ranging from $107.400 to $107.960. 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. 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 14, 2018.
Remarks:
/s/ James R. Oehler, Attorney-in-Fact09/11/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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