Harbor Capital Advisors’s Tetra Tech TTEK Stock Holding History

Harbor Capital Advisors’s Portfolio TTEK Stock Details TTEK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-13,632	Closed	-$457K	–	1486
2025 Q4	$457K	Sell	13,632 -639	-4%	-$21.6K	0.04%	511
2025 Q3	$476K	Sell	14,271 -35,179	-71%	-$1.28M	0.04%	494
2025 Q2	$1.78M	Buy	49,450 +1,032	+2%	+$34.4K	0.07%	335
2025 Q1	$1.42M	Buy	48,418 +11,340	+31%	+$381K	0.06%	356
2024 Q4	$1.48M	Buy	37,078 +648	+2%	+$29.1K	0.06%	374
2024 Q3	$1.72M	Buy	36,430 +11,505	+46%	+$512K	0.07%	344
2024 Q2	$1.02M	Buy	24,925 +18,665	+298%	+$761K	0.08%	349
2024 Q1	$231K	Buy	+6,260	New	+$217K	0.03%	569
2023 Q3	–	Sell	-730	Closed	-$23.9K	–	635
2023 Q2	$23.9K	Buy	+730	New	+$21.5K	﹤0.01%	568

Other funds holding TTEK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return

Harbor Capital Advisors's TTEK Position: Q1 2026 in Review

Harbor Capital Advisors sold out of Tetra Tech (TTEK) in Q1 2026, closing a stake of 13,632 shares — an estimated $457K sold.

Harbor Capital Advisors first reported a position in TTEK in Q2 2023 and held it in 9 quarters. The position peaked at $1.78M in Q2 2025. 588 funds tracked by Wall St. Rank hold TTEK as of Q1 2026.

Harbor Capital Advisors reported no remaining Tetra Tech position as of Q1 2026 after selling out during the quarter.
Harbor Capital Advisors sold 13,632 Tetra Tech shares in Q1 2026, an estimated $457K.
Harbor Capital Advisors first reported a position in Tetra Tech in Q2 2023 and held it in 9 quarters.
Harbor Capital Advisors's Tetra Tech position peaked at $1.78M in Q2 2025.
588 funds tracked by Wall St. Rank held Tetra Tech as of Q1 2026.

Based on Harbor Capital Advisors's 13F filing for Q1 2026, filed 28 Apr 2026.