Oppenheimer & Co’s Amkor Technology AMKR Stock Holding History

Oppenheimer & 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
2026 Q2	$660K	Buy	+7,659	New	+$546K	0.01%	1133
2016 Q2	–	Sell	-11,500	Closed	-$68K	–	1229
2016 Q1	$68K	Hold	11,500	–	–	﹤0.01%	1199
2015 Q4	$70K	Sell	11,500 -5,000	-30%	-$30.3K	﹤0.01%	1231
2015 Q3	$74K	Sell	16,500 -14,500	-47%	-$71.3K	﹤0.01%	1289
2015 Q2	$185K	Sell	31,000 -2,000	-6%	-$14.4K	0.01%	1320
2015 Q1	$292K	Buy	+33,000	New	+$268K	0.01%	1116

Other funds holding AMKR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Oppenheimer & Co's AMKR Position: Q2 2026 in Review

Oppenheimer & Co opened a new position in Amkor Technology (AMKR) in Q2 2026: 7,659 shares worth $660K. The stake represents 0.01% of the portfolio and ranks #1133 among its holdings. This is a return to the name: Oppenheimer & Co previously reported a position in AMKR as recently as Q1 2016.

Oppenheimer & Co first reported a position in AMKR in Q1 2015 and has held it in 6 quarters since. 646 funds tracked by Wall St. Rank hold AMKR as of Q2 2026.

Oppenheimer & Co held 7,659 shares of Amkor Technology worth $660K as of Q2 2026.
Amkor Technology was a new Oppenheimer & Co position in Q2 2026.
Amkor Technology made up 0.01% of Oppenheimer & Co's portfolio in Q2 2026, its #1133 holding.
Oppenheimer & Co first reported a position in Amkor Technology in Q1 2015 and has held it in 6 quarters since.
646 funds tracked by Wall St. Rank held Amkor Technology as of Q2 2026.

Based on Oppenheimer & Co's 13F filing for Q2 2026, filed 3 Aug 2026.