CARTER BRIAN N (SVP, Corporate Controller) received a stock award from TETRA TECH INC

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award

CARTER BRIAN N

Filed: 12/2/2025ACC: 0001561742-25-000003

InsiderCARTER BRIAN NCIK 1561742

→

IssuerTETRA TECH INCCIK 831641

Officer· SVP, Corporate Controller

Since Nov 2018

+7.86K

Net shares

Net buyer

$309.5K

Total sold

Open market trades

0B · 0S

Total transactions

21.57K acquired · 13.72K disposed

Non-Derivative Transactions8

COMMON STOCK

Direct

M · Option Exercise

+995.00

Price / share

—

Trade value

—

% of position

2.0%

11/18/2025

49.22K→50.22K

COMMON STOCK

Direct

M · Option Exercise

+1.26K

Price / share

—

Trade value

—

% of position

2.5%

11/18/2025

50.22K→51.48K

COMMON STOCK

Direct

F · Tax Withholding

−1.23K

Price / share

$35.69

Trade value

$44.04K

% of position

2.4%

11/18/2025

51.48K→50.25K

COMMON STOCK

Direct

A · Award

+10.95K

Price / share

—

Trade value

—

% of position

21.8%

11/18/2025

50.25K→61.20K

COMMON STOCK

Direct

F · Tax Withholding

−5.98K

Price / share

$35.69

Trade value

$213.32K

% of position

9.8%

11/18/2025

61.20K→55.23K

COMMON STOCK

Direct

M · Option Exercise

+1.52K

Price / share

—

Trade value

—

% of position

2.8%

11/30/2025

55.23K→56.75K

COMMON STOCK

Direct

M · Option Exercise

+1.23K

Price / share

—

Trade value

—

% of position

2.2%

11/30/2025

56.75K→57.98K

COMMON STOCK

Direct

F · Tax Withholding

−1.50K

Price / share

$34.74

Trade value

$52.11K

% of position

2.6%

11/30/2025

57.98K→56.48K

Total

Net shares

+7.25K

Net value

-$309.47K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
COMMON STOCK Direct	11/18/2025	M · Option Exercise	+995.00	—	—	2.0%	49.22K	50.22K
COMMON STOCK Direct	11/18/2025	M · Option Exercise	+1.26K	—	—	2.5%	50.22K	51.48K
COMMON STOCK Direct	11/18/2025	F · Tax Withholding	−1.23K	$35.69	$44.04K	2.4%	51.48K	50.25K
COMMON STOCK Direct	11/18/2025	A · Award	+10.95K	—	—	21.8%	50.25K	61.20K
COMMON STOCK Direct	11/18/2025	F · Tax Withholding	−5.98K	$35.69	$213.32K	9.8%	61.20K	55.23K
COMMON STOCK Direct	11/30/2025	M · Option Exercise	+1.52K	—	—	2.8%	55.23K	56.75K
COMMON STOCK Direct	11/30/2025	M · Option Exercise	+1.23K	—	—	2.2%	56.75K	57.98K
COMMON STOCK Direct	11/30/2025	F · Tax Withholding	−1.50K	$34.74	$52.11K	2.6%	57.98K	56.48K
Total			+7.25K		-$309.47K

Derivative Transactions5

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

995.00 shares

−995.00

Strike price

Held after

0.00

Exercisable

—

11/18/2025

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.26K shares

−1.26K

Strike price

Held after

1.26K

Exercisable

—

11/18/2025

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

A · Award

Converts to

COMMON STOCK

5.61K shares

+5.61K

Strike price

Held after

5.61K

Exercisable

—

11/19/2025

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.52K shares

−1.52K

Strike price

Held after

3.03K

Exercisable

—

11/30/2025

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.23K shares

−1.23K

Strike price

Held after

3.68K

Exercisable

—

11/30/2025

Security	Converts To	Date	Type	Shares	Exercisable	Held After
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK995.00 shares	11/18/2025	M · Option Exercise	−995.00	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.26K shares	11/18/2025	M · Option Exercise	−1.26K	—	1.26K
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK5.61K shares	11/19/2025	A · Award	+5.61K	—	5.61K
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.52K shares	11/30/2025	M · Option Exercise	−1.52K	—	3.03K
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.23K shares	11/30/2025	M · Option Exercise	−1.23K	—	3.68K