STOCK TITAN

Tetra Tech (NASDAQ: TTEK) director exercises 2,300 share options at $9.59

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

TETRA TECH INC director Kirsten M. Volpi exercised stock options covering 2,300 shares of common stock at $9.59 per share. The option exercise converted derivative securities into common stock, leaving her with 74,218 common shares held directly and 4,000 stock options remaining outstanding.

Positive

  • None.

Negative

  • None.
Insider Volpi Kirsten M
Role Director
Type Security Shares Price Value
Exercise STOCK OPTION (RIGHT TO BUY) F1 2,300 $0.00 $0.00
Exercise COMMON STOCK 2,300 $9.59 $22K
Holdings After Transaction: STOCK OPTION (RIGHT TO BUY) — 4,000 shares (Direct); COMMON STOCK — 74,218 shares (Direct)
Footnotes (1)
  1. F1. The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.
Options exercised 2,300 shares Stock options converted into common stock on 2026-08-04
Exercise price $9.59 per share Exercise price for 2,300 stock options exercised by the director
Common shares held 74,218 shares Direct common stock ownership following the reported transactions on 2026-08-04
Options remaining 4,000 shares Stock options outstanding after exercising 2,300 options
Option expiration 2027-11-18 Expiration date of the reported stock option grant
STOCK OPTION (RIGHT TO BUY) financial
"Reported security title: STOCK OPTION (RIGHT TO BUY)"
derivative security financial
"Transaction code M described as 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.
direct or indirect financial
"Field direct_or_indirect indicates D for direct or I for indirect ownership type"

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What insider transaction did TTEK director Kirsten M. Volpi report on this Form 4?

Kirsten M. Volpi reported exercising stock options for 2,300 shares of Tetra Tech common stock at $9.59 per share, converting derivative options into shares and updating her reported ownership position.

How many TTEK shares does Kirsten M. Volpi own after the reported Form 4 transactions?

After the reported transactions, Kirsten M. Volpi holds 74,218 shares of Tetra Tech common stock directly. This reflects the addition of 2,300 shares acquired through the stock option exercise on 2026-08-04.

What was the size and exercise price of the TTEK stock options exercised by Kirsten M. Volpi?

Kirsten M. Volpi exercised stock options covering 2,300 shares of Tetra Tech common stock at an exercise price of $9.59 per share, as reported in the Form 4 insider transaction details.

Did the TTEK Form 4 for Kirsten M. Volpi report any open-market sales of common stock?

No open-market sales were reported. The Form 4 shows an option exercise converting derivative securities into 2,300 common shares, with no transaction coded as a sale of Tetra Tech common stock.

How many TTEK stock options does Kirsten M. Volpi retain after this Form 4, and when do they expire?

Following the reported exercise, Kirsten M. Volpi retains 4,000 stock options on Tetra Tech shares, with the option grant reported as having an expiration date of 2027-11-18 in the transaction data.

What does the footnote on Kirsten M. Volpi’s TTEK stock option grant explain?

The footnote states that the option becomes exercisable as to 100% of the shares on the anniversary of the grant date, clarifying the vesting terms associated with the reported Tetra Tech stock option award.
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)
08/04/2026
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 STOCK08/04/2026M2,300A$9.5974,218D
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)$9.5908/04/2026M2,30011/17/2018(1)11/18/2027COMMON STOCK2,300$04,000D
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. Volpi08/06/2026
** 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)