PICTET ASSET MANAGEMENT SA - 16 Oct 2025 SCHEDULE 13D/A Report for TETRA TECH INC COMMON STOCK (TTEK)

Filing Manager: PICTET ASSET MANAGEMENT SA
Reporting Manager: PICTET ASSET MANAGEMENT SA
Security: TETRA TECH INC COMMON STOCK
Symbol: TTEK
Shares outstanding: 265,433,531 shares
Disclosed Ownership: 13,006,243 shares
Ownership: 4.9%
Form type: SCHEDULE 13D/A
Filing time: 17 Oct 2025, 13:09:55 UTC
Date of event: 16 Oct 2025
Previous filing: 15 Apr 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
PICTET ASSET MANAGEMENT SA	4.9%	13,006,243	11,829,824		Karine Valtanen	Global Head of Compliance	0001361570