Eric W. Thornburg

CIK: 0001349767

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)3 (50.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

TTEK

TETRA TECH INC

Director

SJW

SJW GROUP

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

TTEK
TETRA TECH INC
Apr 27, 2026
Award(A)
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Direct
1.3K shares-
SJW
SJW GROUP
Feb 28, 2025
Award(A)
Direct
12.5K shares-
SJW
SJW GROUP
Feb 28, 2025
Tax Payment(F)
Direct
4.5K shares at avg. $52.67$237K
SJW
SJW GROUP
Jan 3, 2025
Tax Payment(F)
Direct
1.7K shares at avg. $48.27$81K
SJW
SJW GROUP
Jan 2, 2025
Award(A)
Direct
11.1K shares-
SJW
SJW GROUP
Jan 2, 2025
Tax Payment(F)
Direct
1.2K shares at avg. $48.70$56K

		Type	Shares	Price		Ownership
Apr 27, 2026	TTEK TETRA TECH INC	Award(A) RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)	1,259	-	-	Direct
Feb 28, 2025	SJW SJW GROUP	Award(A)	12,471	-	-	Direct
Feb 28, 2025	SJW SJW GROUP	Tax Payment(F)	4,503	$52.67	$237,173	Direct
Jan 3, 2025	SJW SJW GROUP	Tax Payment(F)	1,668	$48.27	$80,514	Direct
Jan 2, 2025	SJW SJW GROUP	Award(A)	11,058	-	$0	Direct
Jan 2, 2025	SJW SJW GROUP	Tax Payment(F)	1,155	$48.70	$56,249	Direct

1-6 of 6 transactions

About Thornburg Eric W

Thornburg Eric W (SEC CIK 0001349767) files insider reports with the SEC as Director of TETRA TECH INC (TTEK) and President & CEO of SJW GROUP (SJW).

Signal8 holds 5 ownership filings by Thornburg Eric W (1 Form 3, 4 Form 4), filed between Jan 6, 2025 and Apr 28, 2026. Those filings report 6 transactions, from Jan 2, 2025 to Apr 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Thornburg Eric W's filings is in PASADENA, CA.

Recent filings by Thornburg Eric W

Apr 27, 2026: Grant or award of TTEK derivative securities (Form 4, code A).
Feb 28, 2025: Grant or award of SJW shares (Form 4, code A).
Feb 28, 2025: Tax withholding of SJW shares (Form 4, code F).
Jan 3, 2025: Tax withholding of SJW shares (Form 4, code F).
Jan 2, 2025: Grant or award of SJW shares (Form 4, code A).

Other insiders filing for TETRA TECH INC (TTEK)

Volpi Kirsten M, Director
Feeler Jeffrey R, Director
Ritrievi Kimberly E, Director
Obiaya Christiana, Director
Argus Roger R, President and CEO
BURDICK STEVEN M, EVP, CFO

How to read Form 4 transaction codes