LJAC
AMKR icon

L.J. Altfest & Co’s Amkor Technology AMKR Stock Holding History

L.J. Altfest & Co’s Portfolio AMKR Stock Details AMKR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-16,913
Closed -$480K – 331
2025
Q3 		$480K Buy
+16,913
New +$407K 0.05% 235
2025
Q1 		– Sell
-16,299
Closed -$419K – 324
2024
Q4 		$419K Buy
16,299
+3,815
+31% +$105K 0.05% 237
2024
Q3 		$382K Buy
+12,484
New +$425K 0.05% 245

Other funds holding AMKR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

L.J. Altfest & Co's AMKR Position: Q4 2025 in Review

L.J. Altfest & Co sold out of Amkor Technology (AMKR) in Q4 2025, closing a stake of 16,913 shares — an estimated $480K sold.

L.J. Altfest & Co first reported a position in AMKR in Q3 2024 and held it in 3 quarters. The position peaked at $480K in Q3 2025. 455 funds tracked by Wall St. Rank hold AMKR as of Q4 2025.

  • L.J. Altfest & Co reported no remaining Amkor Technology position as of Q4 2025 after selling out during the quarter.
  • L.J. Altfest & Co sold 16,913 Amkor Technology shares in Q4 2025, an estimated $480K.
  • L.J. Altfest & Co first reported a position in Amkor Technology in Q3 2024 and held it in 3 quarters.
  • L.J. Altfest & Co's Amkor Technology position peaked at $480K in Q3 2025.
  • 455 funds tracked by Wall St. Rank held Amkor Technology as of Q4 2025.

Based on L.J. Altfest & Co's 13F filing for Q4 2025, filed 23 Jan 2026.