FCM
UCTT

Frontier Capital Management’s Ultra Clean Holdings UCTT Stock Holding History

Frontier Capital Management’s Portfolio UCTT Stock Details UCTT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$111M Sell
1,787,451
-1,722,388
-49% -$88.3M 1.14% 13
2025
Q4 		$88.9M Buy
3,509,839
+476,569
+16% +$12.7M 0.94% 17
2025
Q3 		$82.7M Buy
3,033,270
+279,107
+10% +$6.86M 0.74% 27
2025
Q2 		$62.2M Buy
2,754,163
+808,277
+42% +$16.6M 0.58% 44
2025
Q1 		$41.7M Sell
1,945,886
-184,220
-9% -$5.88M 0.46% 79
2024
Q4 		$76.6M Sell
2,130,106
-48,078
-2% -$1.78M 0.73% 31
2024
Q3 		$87M Sell
2,178,184
-824,417
-27% -$33.8M 0.82% 24
2024
Q2 		$147M Buy
3,002,601
+134,483
+5% +$6.04M 1.46% 4
2024
Q1 		$132M Buy
2,868,118
+308,175
+12% +$12.5M 1.23% 9
2023
Q4 		$87.4M Buy
2,559,943
+698,242
+38% +$19.4M 0.88% 24
2023
Q3 		$55.2M Buy
1,861,701
+262,429
+16% +$8.84M 0.61% 51
2023
Q2 		$61.5M Buy
1,599,272
+527,989
+49% +$17M 0.59% 55
2023
Q1 		$35.5M Buy
1,071,283
+462,704
+76% +$15.3M 0.37% 103
2022
Q4 		$20.2M Buy
+608,579
New +$19.4M 0.22% 152
2021
Q1 		– Sell
-521,078
Closed -$16.2M – 302
2020
Q4 		$16.2M Sell
521,078
-474,895
-48% -$13.3M 0.12% 200
2020
Q3 		$21.4M Sell
995,973
-369,266
-27% -$8.97M 0.19% 165
2020
Q2 		$30.9M Sell
1,365,239
-238,152
-15% -$4.53M 0.27% 133
2020
Q1 		$22.1M Sell
1,603,391
-267,780
-14% -$5.69M 0.25% 137
2019
Q4 		$43.9M Sell
1,871,171
-437,323
-19% -$8.84M 0.32% 120
2019
Q3 		$33.8M Buy
2,308,494
+429,913
+23% +$5.97M 0.26% 131
2019
Q2 		$26.1M Sell
1,878,581
-1,409
-0.1% -$18K 0.2% 157
2019
Q1 		$19.5M Buy
1,879,990
+713,277
+61% +$7.65M 0.14% 188
2018
Q4 		$9.88M Buy
1,166,713
+1,087,780
+1,378% +$10.6M 0.08% 235
2018
Q3 		$991K Buy
+78,933
New +$1.15M 0.01% 280

Other funds holding UCTT

BlackRock
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
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Frontier Capital Management's UCTT Position: Q1 2026 in Review

Frontier Capital Management reduced its Ultra Clean Holdings (UCTT) stake by 49% in Q1 2026, selling an estimated $88.3M and leaving 1,787,451 shares worth $111M. The position accounts for 1.14% of the portfolio, ranked #13.

Frontier Capital Management first reported a position in UCTT in Q3 2018 and has held it in 24 quarters since. The position peaked at $147M in Q2 2024. 331 funds tracked by Wall St. Rank hold UCTT as of Q1 2026.

  • Frontier Capital Management held 1,787,451 shares of Ultra Clean Holdings worth $111M as of Q1 2026.
  • Frontier Capital Management sold 1,722,388 Ultra Clean Holdings shares in Q1 2026, an estimated $88.3M.
  • Ultra Clean Holdings made up 1.14% of Frontier Capital Management's portfolio in Q1 2026, its #13 holding.
  • Frontier Capital Management first reported a position in Ultra Clean Holdings in Q3 2018 and has held it in 24 quarters since.
  • Frontier Capital Management's Ultra Clean Holdings position peaked at $147M in Q2 2024.
  • 331 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q1 2026.

Based on Frontier Capital Management's 13F filing for Q1 2026, filed 15 May 2026.