RITRIEVI KIMBERLY E received a stock award from TETRA TECH INC

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

A · 1 award

RITRIEVI KIMBERLY E

Filed: 3/18/2026ACC: 0001592089-26-000004

InsiderRITRIEVI KIMBERLY ECIK 1592089

→

IssuerTETRA TECH INCCIK 831641

Director

Since Nov 2018

+25.88K

Net shares

Net buyer

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

46.85K acquired · 20.97K disposed

Non-Derivative Transactions11

COMMON STOCK

Direct

M · Option Exercise

+4.50K

Price / share

—

Trade value

—

% of position

3.1%

3/16/2026

145.41K→149.91K

COMMON STOCK

Direct

M · Option Exercise

+2.25K

Price / share

—

Trade value

—

% of position

1.5%

3/16/2026

149.91K→152.16K

COMMON STOCK

Direct

M · Option Exercise

+1.93K

Price / share

—

Trade value

—

% of position

1.3%

3/16/2026

152.16K→154.08K

COMMON STOCK

Direct

M · Option Exercise

+2.91K

Price / share

—

Trade value

—

% of position

1.9%

3/16/2026

154.08K→156.99K

COMMON STOCK

Direct

M · Option Exercise

+2.05K

Price / share

—

Trade value

—

% of position

1.3%

3/16/2026

156.99K→159.04K

COMMON STOCK

Direct

M · Option Exercise

+795.00

Price / share

—

Trade value

—

% of position

0.5%

3/16/2026

159.04K→159.84K

COMMON STOCK

Direct

M · Option Exercise

+795.00

Price / share

—

Trade value

—

% of position

0.5%

3/16/2026

159.84K→160.63K

COMMON STOCK

Direct

M · Option Exercise

+1.90K

Price / share

—

Trade value

—

% of position

1.2%

3/16/2026

160.63K→162.53K

COMMON STOCK

Direct

M · Option Exercise

+2.13K

Price / share

—

Trade value

—

% of position

1.3%

3/16/2026

162.53K→164.66K

COMMON STOCK

Direct

M · Option Exercise

+1.72K

Price / share

—

Trade value

—

% of position

1.0%

3/16/2026

164.66K→166.38K

COMMON STOCK

Direct

A · Award

+25.88K

Price / share

—

Trade value

—

% of position

15.6%

3/16/2026

166.38K→192.26K

Total

Net shares

+46.85K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+4.50K	—	—	3.1%	145.41K	149.91K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+2.25K	—	—	1.5%	149.91K	152.16K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+1.93K	—	—	1.3%	152.16K	154.08K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+2.91K	—	—	1.9%	154.08K	156.99K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+2.05K	—	—	1.3%	156.99K	159.04K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+795.00	—	—	0.5%	159.04K	159.84K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+795.00	—	—	0.5%	159.84K	160.63K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+1.90K	—	—	1.2%	160.63K	162.53K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+2.13K	—	—	1.3%	162.53K	164.66K
COMMON STOCK Direct	3/16/2026	M · Option Exercise	+1.72K	—	—	1.0%	164.66K	166.38K
COMMON STOCK Direct	3/16/2026	A · Award	+25.88K	—	—	15.6%	166.38K	192.26K
Total			+46.85K		$0.00

Derivative Transactions10

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

4.50K shares

−4.50K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

2.25K shares

−2.25K

Strike price

Held after

2.25K

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.93K shares

−1.93K

Strike price

Held after

1.93K

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

2.91K shares

−2.91K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

2.05K shares

−2.05K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

795.00 shares

−795.00

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

795.00 shares

−795.00

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.90K shares

−1.90K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

2.13K shares

−2.13K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Direct

M · Option Exercise

Converts to

COMMON STOCK

1.72K shares

−1.72K

Strike price

Held after

0.00

Exercisable

—

3/16/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK4.50K shares	3/16/2026	M · Option Exercise	−4.50K	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK2.25K shares	3/16/2026	M · Option Exercise	−2.25K	—	2.25K
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.93K shares	3/16/2026	M · Option Exercise	−1.93K	—	1.93K
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK2.91K shares	3/16/2026	M · Option Exercise	−2.91K	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK2.05K shares	3/16/2026	M · Option Exercise	−2.05K	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK795.00 shares	3/16/2026	M · Option Exercise	−795.00	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK795.00 shares	3/16/2026	M · Option Exercise	−795.00	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.90K shares	3/16/2026	M · Option Exercise	−1.90K	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK2.13K shares	3/16/2026	M · Option Exercise	−2.13K	—	0.00
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) Direct	COMMON STOCK1.72K shares	3/16/2026	M · Option Exercise	−1.72K	—	0.00