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Halozyme (HALO) CEO sells 1,923 exercised shares under Rule 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Halozyme Therapeutics President and CEO Helen Torley exercised stock options for 1,923 shares of common stock at $12.07 per share and immediately sold the same 1,923 shares in open‑market transactions at prices around $79–$80 per share. These trades were carried out under a pre‑arranged Rule 10b5-1 trading plan adopted on March 21, 2025, and involved options that were due to expire in February 2027. After these transactions, Torley directly holds 767,780 shares of Halozyme common stock.

Positive

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Insider Torley Helen
Role PRESIDENT AND CEO
Sold 1,923 shs ($153K)
Type Security Shares Price Value
Exercise Option to Purchase Common Stock 1,923 $12.07 $23K
Exercise Common Stock 1,923 $12.07 $23K
Sale Common Stock 888 $79.276 $70K
Sale Common Stock 1,035 $80.187 $83K
Holdings After Transaction: Option to Purchase Common Stock — 0 shares (Direct, null); Common Stock — 769,703 shares (Direct, null)
Footnotes (1)
  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. Represents a weighted average sales price per share. The shares were sold at prices ranging from $78.710 to $79.700. 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. Represents a weighted average sales price per share. The shares were sold at prices ranging from $79.710 to $80.490. 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. 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.
Shares sold 1,923 shares Total common shares sold in open-market transactions on July 8, 2026
Sale prices tranche 1 $79.276/share Weighted average price for 888 shares sold; range $78.710–$79.700
Sale prices tranche 2 $80.187/share Weighted average price for 1,035 shares sold; range $79.710–$80.490
Option exercise price $12.07/share Exercise price for 1,923 stock option shares converted to common
Post-transaction holdings 767,780 shares Common shares directly owned by Helen Torley after transactions
Trading plan adoption date March 21, 2025 Date Rule 10b5-1 plan governing these trades was adopted
Option grant date February 22, 2017 Grant date of ten-year stock options exercised in this Form 4
Option expiration February 2027 Expiration timing for the exercised stock options
Rule 10b5-1 regulatory
"were made pursuant to a written trading plan adopted by the Reporting Person on March 21, 2025 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.
weighted average sales price financial
"Represents a weighted average sales price per share. The shares were sold at prices ranging from $78.710 to $79.700."
Option to Purchase Common Stock financial
"security_title": "Option to Purchase Common Stock""
stock options financial
"shares that were acquired following exercise of stock options with a ten-year term expiring in February 2027"
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.
ten-year term financial
"exercise of stock options with a ten-year term expiring in February 2027"
vesting financial
"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"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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FAQ

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

Helen Torley reported exercising options for 1,923 Halozyme shares at $12.07 each, then selling all 1,923 shares in open‑market trades around $79–$80 per share. The transactions were compensation-related and disclosed as routine Form 4 activity.

How many Halozyme (HALO) shares did the CEO sell and at what prices?

Helen Torley sold 1,923 Halozyme shares in two tranches: 888 shares at a weighted average price of $79.276 and 1,035 shares at a weighted average price of $80.187. Actual sale prices ranged between $78.710 and $80.490 per share.

Did the HALO CEO’s stock sale come from exercised options?

Yes. The filing states the 1,923 Halozyme shares sold were acquired through exercising stock options with a ten‑year term and an exercise price of $12.07 per share. Those options were originally granted on February 22, 2017 and were approaching their February 2027 expiration.

Was the Halozyme (HALO) CEO’s share sale done under a Rule 10b5‑1 plan?

Yes. The options exercise and related share sales were executed under a written trading plan adopted on March 21, 2025 in accordance with Rule 10b5‑1. Such plans pre‑schedule trades, making them less about short‑term views on Halozyme’s stock price.

How many Halozyme (HALO) shares does the CEO hold after these transactions?

After exercising options and selling 1,923 shares, Helen Torley directly owns 767,780 Halozyme common shares. This post‑transaction holding figure shows she retains a substantial equity stake in the company even after the reported transactions under her Rule 10b5‑1 plan.

What were the key terms of the HALO CEO’s exercised stock options?

The options covered 1,923 Halozyme shares at an exercise price of $12.07 per share and had a ten‑year term expiring in February 2027. They were granted on February 22, 2017, vesting over four years, with 25% after 12 months and monthly vesting thereafter.
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)
07/08/2026
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 Stock07/08/2026M(1)1,923A$12.07769,703D
Common Stock07/08/2026S(1)888D$79.276(2)768,815D
Common Stock07/08/2026S(1)1,035D$80.187(3)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$12.0707/08/2026M(1)1,923 (4)02/22/2027Common Stock1,923$12.070D
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 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 $78.710 to $79.700. 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 $79.710 to $80.490. 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. 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.
Remarks:
/s/ James R. Oehler, Attorney-in-Fact07/09/2026
** 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)