STOCK TITAN

Director Kirsten Volpi exercises 1,700 TETRA TECH (TTEK) stock options

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

Rhea-AI Filing Summary

TETRA TECH INC director Kirsten M. Volpi exercised stock options to acquire 1,700 shares of common stock. The options had a fixed exercise price of $9.59 per share. After the transaction, Volpi directly holds 71,918 common shares and 6,300 stock options, which remain exercisable until November 18, 2027.

Positive

  • None.

Negative

  • None.
Insider Volpi Kirsten M
Role null
Type Security Shares Price Value
Exercise STOCK OPTION (RIGHT TO BUY) 1,700 $0.00 --
Exercise COMMON STOCK 1,700 $9.59 $16K
Holdings After Transaction: STOCK OPTION (RIGHT TO BUY) — 6,300 shares (Direct, null); COMMON STOCK — 71,918 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Options Exercised 1,700 shares Stock options converted to common stock on June 4, 2026
Exercise Price $9.59 per share Exercise price of stock options
Shares Held After 71,918 shares Total common shares directly held after transaction
Options Remaining 6,300 options Stock options directly held after exercise
Option Expiration November 18, 2027 Expiration date of remaining stock options
stock option financial
"The option becomes exercisable as to 100% of the shares on the anniversary of the grant date."
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
exercise price financial
"conversion_or_exercise_price": "9.5900""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
common stock financial
"security_title": "COMMON STOCK""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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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).
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*
Volpi Kirsten M

(Last)(First)(Middle)
3475 EAST FOOTHILL BOULEVARD

(Street)
PASADENA CALIFORNIA 91107

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
TETRA TECH INC [ TTEK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026
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 STOCK06/04/2026M1,700A$9.5971,918D
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
STOCK OPTION (RIGHT TO BUY)$9.5906/04/2026M1,70011/17/2018(1)11/18/2027COMMON STOCK1,700$06,300D
Explanation of Responses:
1. The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.
Remarks:
/s/ Preston Hopson, Attorney-in-fact for Kirsten M. Volpi06/05/2026
** 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)

FAQ

What insider transaction did TETRA TECH (TTEK) director Kirsten Volpi report?

Director Kirsten M. Volpi reported exercising stock options to acquire 1,700 shares of TETRA TECH common stock. The options were exercised at a fixed price of $9.59 per share, converting a derivative position into directly held shares.

At what price were Kirsten Volpi’s TETRA TECH (TTEK) stock options exercised?

The stock options were exercised at an exercise price of $9.59 per share. This price was set in the original option grant and reflects the cost per share Volpi paid upon exercising the 1,700 options into common stock.

How many TETRA TECH (TTEK) shares does Kirsten Volpi hold after this Form 4 transaction?

After the reported transaction, Kirsten Volpi directly holds 71,918 shares of TETRA TECH common stock. This figure reflects her post-exercise position as disclosed, showing her ongoing equity stake in the company following the option exercise.

How many TETRA TECH (TTEK) stock options remain after Kirsten Volpi’s exercise?

Following the exercise of 1,700 options, 6,300 TETRA TECH stock options remain in Kirsten Volpi’s account. These options continue to be held directly and retain their original $9.59 exercise price and November 18, 2027 expiration date.

What type of transaction code appears in Kirsten Volpi’s TETRA TECH (TTEK) Form 4?

The Form 4 shows transaction code “M,” indicating the exercise or conversion of a derivative security. In this case, the code reflects exercising stock options into 1,700 common shares rather than an open-market purchase or sale.