IFM
UCTT

ION Fund Management’s Ultra Clean Holdings UCTT Stock Holding History

ION Fund 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
Q2 		$42.5M Sell
298,000
-51,852
-15% -$4.56M 2.7% 12
2026
Q1 		$21.8M Buy
+349,852
New +$17.9M 3.08% 12

Other funds holding UCTT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

ION Fund Management's UCTT Position: Q2 2026 in Review

ION Fund Management reduced its Ultra Clean Holdings (UCTT) stake by 15% in Q2 2026, selling an estimated $4.56M and leaving 298,000 shares worth $42.5M. The position accounts for 2.7% of the portfolio, ranked #12.

ION Fund Management first reported a position in UCTT in Q1 2026 and has held it in 2 quarters since. 437 funds tracked by Wall St. Rank hold UCTT as of Q2 2026.

  • ION Fund Management held 298,000 shares of Ultra Clean Holdings worth $42.5M as of Q2 2026.
  • ION Fund Management sold 51,852 Ultra Clean Holdings shares in Q2 2026, an estimated $4.56M.
  • Ultra Clean Holdings made up 2.7% of ION Fund Management's portfolio in Q2 2026, its #12 holding.
  • ION Fund Management first reported a position in Ultra Clean Holdings in Q1 2026 and has held it in 2 quarters since.
  • 437 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q2 2026.

Based on ION Fund Management's 13F filing for Q2 2026, filed 14 Aug 2026.